Remove oss4 plugin

It has been moved to gst-plugins-good.

See #614305.

27 files changed, 6 insertions, 8424 deletions

diff --git a/Makefile.am b/Makefile.am
index fdd7e9cb4..2e4322caa 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -47,8 +47,10 @@ CRUFT_FILES = \
 	$(top_builddir)/gst/shapewipe/.libs/*.{so,dll,DLL,dylib} \
 	$(top_builddir)/ext/ivorbis/.libs/*.{so,dll,DLL,dylib} \
 	$(top_builddir)/gst/imagefreeze/.libs/*.{so,dll,DLL,dylib} \
+	$(top_builddir)/sys/oss4/.libs/*.{so,dll,DLL,dylib} \
 	$(top_builddir)/tests/check/elements/capssetter \
-	$(top_builddir)/tests/check/elements/imagefreeze
+	$(top_builddir)/tests/check/elements/imagefreeze \
+	$(top_builddir)/tests/icles/test-oss4
 
 CRUFT_DIRS = \
 	$(top_srcdir)/gst/aacparse \
diff --git a/configure.ac b/configure.ac
index 097ec4283..d81eaa805 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1400,15 +1400,6 @@ AG_GST_CHECK_FEATURE(DVB, [DVB Source], dvb, [
   AC_CHECK_HEADER(linux/dvb/frontend.h, [HAVE_DVB="yes"], [HAVE_DVB="no"])
 ])
 
-dnl *** oss4 ***
-translit(dnm, m, l) AM_CONDITIONAL(USE_OSS4, true)
-AG_GST_CHECK_FEATURE(OSS4, [Open Sound System 4], oss4, [
-  AC_MSG_CHECKING([Checking if we can build the OSS4 elements])
-  AC_CHECK_HEADERS([fcntl.h sys/ioctl.h sys/stat.h sys/types.h],
-      [test -z "$OSS4_MISSING_HEADER" && HAVE_OSS4="yes"],
-      [OSS4_MISSING_HEADER="yes";HAVE_OSS4="no"])
-])
-
 dnl *** wininet ***
 translit(dnm, m, l) AM_CONDITIONAL(USE_WININET, true)
 AG_GST_CHECK_FEATURE(WININET, [Windows internet library], wininet, [
@@ -1540,7 +1531,6 @@ AM_CONDITIONAL(USE_SWFDEC, false)
 AM_CONDITIONAL(USE_THEORADEC, false)
 AM_CONDITIONAL(USE_XVID, false)
 AM_CONDITIONAL(USE_DVB, false)
-AM_CONDITIONAL(USE_OSS4, false)
 AM_CONDITIONAL(USE_WININET, false)
 AM_CONDITIONAL(USE_ACM, false)
 AM_CONDITIONAL(USE_VDPAU, false)
@@ -1679,7 +1669,6 @@ sys/dshowsrcwrapper/Makefile
 sys/dshowvideosink/Makefile
 sys/dvb/Makefile
 sys/fbdev/Makefile
-sys/oss4/Makefile
 sys/osxvideo/Makefile
 sys/qtwrapper/Makefile
 sys/vcd/Makefile
diff --git a/docs/plugins/inspect/plugin-oss4.xml b/docs/plugins/inspect/plugin-oss4.xml
deleted file mode 100644
index 7ca962452..000000000
--- a/docs/plugins/inspect/plugin-oss4.xml
+++ /dev/null
@@ -1,53 +0,0 @@
-<plugin>
-  <name>oss4</name>
-  <description>Open Sound System (OSS) version 4 support for GStreamer</description>
-  <filename>../../sys/oss4/.libs/libgstoss4audio.so</filename>
-  <basename>libgstoss4audio.so</basename>
-  <version>0.10.18.1</version>
-  <license>LGPL</license>
-  <source>gst-plugins-bad</source>
-  <package>GStreamer Bad Plug-ins git</package>
-  <origin>Unknown package origin</origin>
-  <elements>
-    <element>
-      <name>oss4mixer</name>
-      <longname>OSS v4 Audio Mixer</longname>
-      <class>Generic/Audio</class>
-      <description>Control sound input and output levels with OSS4</description>
-      <author>Tim-Philipp Müller &lt;tim centricular net&gt;</author>
-      <pads>
-    
-      </pads>
-    </element>
-    <element>
-      <name>oss4sink</name>
-      <longname>OSS v4 Audio Sink</longname>
-      <class>Sink/Audio</class>
-      <description>Output to a sound card via OSS version 4</description>
-      <author>Tim-Philipp Müller &lt;tim centricular net&gt;</author>
-      <pads>
-        <caps>
-          <name>sink</name>
-          <direction>sink</direction>
-          <presence>always</presence>
-          <details>audio/x-alaw, rate=(int)[ 1, 192000 ], channels=(int)[ 1, 4096 ]; audio/x-mulaw, rate=(int)[ 1, 192000 ], channels=(int)[ 1, 4096 ]; audio/x-raw-int, width=(int)32, depth=(int)32, endianness=(int)1234, signed=(boolean)true, rate=(int)[ 1, 192000 ], channels=(int)[ 1, 4096 ]; audio/x-raw-int, width=(int)32, depth=(int){ 32, 24 }, endianness=(int)4321, signed=(boolean)true, rate=(int)[ 1, 192000 ], channels=(int)[ 1, 4096 ]; audio/x-raw-int, width=(int){ 32, 24 }, depth=(int)24, endianness=(int)1234, signed=(boolean)true, rate=(int)[ 1, 192000 ], channels=(int)[ 1, 4096 ]; audio/x-raw-int, width=(int)16, depth=(int)16, endianness=(int){ 1234, 4321 }, signed=(boolean){ false, true }, rate=(int)[ 1, 192000 ], channels=(int)[ 1, 4096 ]; audio/x-raw-int, width=(int)8, depth=(int)8, endianness=(int)0, signed=(boolean){ true, false }, rate=(int)[ 1, 192000 ], channels=(int)[ 1, 4096 ]</details>
-        </caps>
-      </pads>
-    </element>
-    <element>
-      <name>oss4src</name>
-      <longname>OSS v4 Audio Source</longname>
-      <class>Source/Audio</class>
-      <description>Capture from a sound card via OSS version 4</description>
-      <author>Tim-Philipp Müller &lt;tim centricular net&gt;</author>
-      <pads>
-        <caps>
-          <name>src</name>
-          <direction>source</direction>
-          <presence>always</presence>
-          <details>audio/x-alaw, rate=(int)[ 1, 192000 ], channels=(int)[ 1, 4096 ]; audio/x-mulaw, rate=(int)[ 1, 192000 ], channels=(int)[ 1, 4096 ]; audio/x-raw-int, width=(int)32, depth=(int)32, endianness=(int)1234, signed=(boolean)true, rate=(int)[ 1, 192000 ], channels=(int)[ 1, 4096 ]; audio/x-raw-int, width=(int)32, depth=(int){ 32, 24 }, endianness=(int)4321, signed=(boolean)true, rate=(int)[ 1, 192000 ], channels=(int)[ 1, 4096 ]; audio/x-raw-int, width=(int){ 32, 24 }, depth=(int)24, endianness=(int)1234, signed=(boolean)true, rate=(int)[ 1, 192000 ], channels=(int)[ 1, 4096 ]; audio/x-raw-int, width=(int)16, depth=(int)16, endianness=(int){ 1234, 4321 }, signed=(boolean){ false, true }, rate=(int)[ 1, 192000 ], channels=(int)[ 1, 4096 ]; audio/x-raw-int, width=(int)8, depth=(int)8, endianness=(int)0, signed=(boolean){ true, false }, rate=(int)[ 1, 192000 ], channels=(int)[ 1, 4096 ]</details>
-        </caps>
-      </pads>
-    </element>
-  </elements>
-</plugin>
\ No newline at end of file
diff --git a/gst-plugins-bad.spec.in b/gst-plugins-bad.spec.in
index f289b4cbb..24043da41 100644
--- a/gst-plugins-bad.spec.in
+++ b/gst-plugins-bad.spec.in
@@ -97,7 +97,6 @@ rm -rf $RPM_BUILD_ROOT
 %{_libdir}/gstreamer-%{majorminor}/libgstrawparse.so
 %{_libdir}/gstreamer-%{majorminor}/libgstselector.so
 %{_libdir}/gstreamer-%{majorminor}/libgstsubenc.so
-%{_libdir}/gstreamer-%{majorminor}/libgstoss4audio.so
 %{_libdir}/gstreamer-%{majorminor}/libresindvd.so
 %{_libdir}/gstreamer-%{majorminor}/libgstaiff.so
 %{_libdir}/gstreamer-%{majorminor}/libgstdccp.so
diff --git a/po/POTFILES.in b/po/POTFILES.in
index bb58c6720..8ba34a269 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -4,6 +4,3 @@ ext/sndfile/gstsfsrc.c
 gst/aiff/aiffparse.c
 gst/nuvdemux/gstnuvdemux.c
 sys/dvb/gstdvbsrc.c
-sys/oss4/oss4-mixer.c
-sys/oss4/oss4-sink.c
-sys/oss4/oss4-source.c
diff --git a/sys/Makefile.am b/sys/Makefile.am
index 0f864058f..bbfffcd11 100644
--- a/sys/Makefile.am
+++ b/sys/Makefile.am
@@ -46,12 +46,6 @@ else
 DVB_DIR=
 endif
 
-if USE_OSS4
-OSS4_DIR=oss4
-else
-OSS4_DIR=
-endif
-
 if USE_OSX_VIDEO
 OSX_VIDEO_DIR=osxvideo
 else
@@ -82,9 +76,9 @@ else
 VDPAU_DIR=
 endif
 
-SUBDIRS = $(ACM_DIR) $(DIRECTDRAW_DIR) $(DIRECTSOUND_DIR) $(DVB_DIR) $(FBDEV_DIR) $(OSS4_DIR) $(OSX_VIDEO_DIR) $(QT_DIR) $(VCD_DIR) $(VDPAU_DIR) $(WININET_DIR)
+SUBDIRS = $(ACM_DIR) $(DIRECTDRAW_DIR) $(DIRECTSOUND_DIR) $(DVB_DIR) $(FBDEV_DIR) $(OSX_VIDEO_DIR) $(QT_DIR) $(VCD_DIR) $(VDPAU_DIR) $(WININET_DIR)
 
 DIST_SUBDIRS = acmenc acmmp3dec directdraw directsound dvb fbdev dshowdecwrapper dshowsrcwrapper dshowvideosink \
-			   oss4 osxvideo qtwrapper vcd vdpau wasapi wininet winks winscreencap
+		osxvideo qtwrapper vcd vdpau wasapi wininet winks winscreencap
 
 include $(top_srcdir)/common/parallel-subdirs.mak
diff --git a/sys/oss4/Makefile.am b/sys/oss4/Makefile.am
deleted file mode 100644
index 955e90375..000000000
--- a/sys/oss4/Makefile.am
+++ /dev/null
@@ -1,33 +0,0 @@
-plugin_LTLIBRARIES = libgstoss4audio.la
-
-libgstoss4audio_la_SOURCES = \
-	oss4-audio.c          \
-	oss4-mixer.c          \
-	oss4-mixer-enum.c     \
-	oss4-mixer-slider.c   \
-	oss4-mixer-switch.c   \
-	oss4-property-probe.c \
-	oss4-sink.c           \
-	oss4-source.c
-
-libgstoss4audio_la_CFLAGS = $(GST_PLUGINS_BASE_CFLAGS) $(GST_CFLAGS)
-libgstoss4audio_la_LIBADD = \
-	$(GST_PLUGINS_BASE_LIBS) \
-        -lgstinterfaces-$(GST_MAJORMINOR) \
-	-lgstaudio-$(GST_MAJORMINOR) \
-	$(GST_LIBS)
-libgstoss4audio_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) 
-libgstoss4audio_la_LIBTOOLFLAGS = --tag=disable-static
-
-noinst_HEADERS = \
-	oss4-audio.h          \
-	oss4-mixer.h          \
-	oss4-mixer-enum.h     \
-	oss4-mixer-slider.h   \
-	oss4-mixer-switch.h   \
-	oss4-property-probe.h \
-	oss4-sink.h           \
-	oss4-soundcard.h      \
-	oss4-source.h
-
-
diff --git a/sys/oss4/oss4-audio.c b/sys/oss4/oss4-audio.c
deleted file mode 100644
index 09f849596..000000000
--- a/sys/oss4/oss4-audio.c
+++ /dev/null
@@ -1,714 +0,0 @@
-/* GStreamer OSS4 audio plugin
- * Copyright (C) 2007-2008 Tim-Philipp Müller <tim centricular net>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <sys/ioctl.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <string.h>
-
-#include "gst/gst-i18n-plugin.h"
-#include <gst/audio/multichannel.h>
-
-#include "oss4-audio.h"
-#include "oss4-mixer.h"
-#include "oss4-property-probe.h"
-#include "oss4-sink.h"
-#include "oss4-source.h"
-#include "oss4-soundcard.h"
-
-GST_DEBUG_CATEGORY (oss4mixer_debug);
-GST_DEBUG_CATEGORY (oss4sink_debug);
-GST_DEBUG_CATEGORY (oss4src_debug);
-GST_DEBUG_CATEGORY (oss4_debug);
-
-#define GST_CAT_DEFAULT oss4_debug
-
-typedef struct
-{
-  const GstBufferFormat gst_fmt;
-  const gint oss_fmt;
-  const gchar name[16];
-  const gint depth;
-  const gint width;
-  const gint endianness;
-  const gboolean signedness;
-} GstOss4AudioFormat;
-
-/* *INDENT-OFF* */
-static const GstOss4AudioFormat fmt_map[] = {
-  /* note: keep sorted by preference, prefered formats first */
-  {
-  GST_MU_LAW, AFMT_MU_LAW, "audio/x-mulaw", 0, 0, 0, FALSE}, {
-  GST_A_LAW, AFMT_A_LAW, "audio/x-alaw", 0, 0, 0, FALSE}, {
-  GST_S32_LE, AFMT_S32_LE, "audio/x-raw-int", 32, 32, G_LITTLE_ENDIAN, TRUE}, {
-  GST_S32_BE, AFMT_S32_BE, "audio/x-raw-int", 32, 32, G_BIG_ENDIAN, TRUE}, {
-  GST_S24_LE, AFMT_S24_LE, "audio/x-raw-int", 24, 32, G_LITTLE_ENDIAN, TRUE}, {
-  GST_S24_BE, AFMT_S24_BE, "audio/x-raw-int", 24, 32, G_BIG_ENDIAN, TRUE}, {
-  GST_S24_3LE, AFMT_S24_PACKED, "audio/x-raw-int", 24, 24, G_LITTLE_ENDIAN,
-        TRUE}, {
-  GST_S16_LE, AFMT_S16_LE, "audio/x-raw-int", 16, 16, G_LITTLE_ENDIAN, TRUE}, {
-  GST_S16_BE, AFMT_S16_BE, "audio/x-raw-int", 16, 16, G_BIG_ENDIAN, TRUE}, {
-  GST_U16_LE, AFMT_U16_LE, "audio/x-raw-int", 16, 16, G_LITTLE_ENDIAN, FALSE}, {
-  GST_U16_BE, AFMT_U16_BE, "audio/x-raw-int", 16, 16, G_BIG_ENDIAN, FALSE}, {
-  GST_S8, AFMT_S8, "audio/x-raw-int", 8, 8, 0, TRUE}, {
-  GST_U8, AFMT_U8, "audio/x-raw-int", 8, 8, 0, FALSE}
-};
-/* *INDENT-ON* */
-
-/* formats we assume the OSS4 layer can always handle and convert internally */
-#define CONVERTIBLE_FORMATS (   \
-    AFMT_MU_LAW | AFMT_A_LAW |  \
-    AFMT_S32_LE | AFMT_S32_BE | \
-    AFMT_S24_LE | AFMT_S24_BE | \
-    AFMT_S24_PACKED |           \
-    AFMT_S16_LE | AFMT_S16_BE | \
-    AFMT_U16_LE | AFMT_U16_BE | \
-    AFMT_S8 | AFMT_U8 )
-
-static void
-gst_oss4_append_format_to_caps (const GstOss4AudioFormat * fmt, GstCaps * caps)
-{
-  GstStructure *s;
-
-  s = gst_structure_empty_new (fmt->name);
-  if (fmt->width != 0 && fmt->depth != 0) {
-    gst_structure_set (s, "width", G_TYPE_INT, fmt->width, "depth", G_TYPE_INT,
-        fmt->depth, "signed", G_TYPE_BOOLEAN, fmt->signedness, NULL);
-  }
-  if (fmt->endianness != 0) {
-    gst_structure_set (s, "endianness", G_TYPE_INT, fmt->endianness, NULL);
-  }
-  gst_caps_append_structure (caps, s);
-}
-
-static gint
-gst_oss4_audio_get_oss_format (GstBufferFormat fmt)
-{
-  guint i;
-
-  for (i = 0; i < G_N_ELEMENTS (fmt_map); ++i) {
-    if (fmt_map[i].gst_fmt == fmt)
-      return fmt_map[i].oss_fmt;
-  }
-  return 0;
-}
-
-/* These are pretty random */
-#define GST_OSS4_MIN_SAMPLE_RATE 1
-#define GST_OSS4_MAX_SAMPLE_RATE 192000
-
-static gboolean
-gst_oss4_audio_detect_rates (GstObject * obj, oss_audioinfo * ai,
-    GstCaps * caps)
-{
-  GValue val = { 0, };
-  int minrate, maxrate, i;
-
-  minrate = ai->min_rate;
-  maxrate = ai->max_rate;
-
-  /* sanity check */
-  if (minrate > maxrate) {
-    GST_WARNING_OBJECT (obj, "min_rate %d > max_rate %d (buggy driver?)",
-        minrate, maxrate);
-    maxrate = ai->min_rate;     /* swap */
-    minrate = ai->max_rate;
-  }
-
-  /* limit to something sensible */
-  if (minrate < GST_OSS4_MIN_SAMPLE_RATE)
-    minrate = GST_OSS4_MIN_SAMPLE_RATE;
-  if (maxrate > GST_OSS4_MAX_SAMPLE_RATE)
-    maxrate = GST_OSS4_MAX_SAMPLE_RATE;
-
-  if (maxrate < GST_OSS4_MIN_SAMPLE_RATE) {
-    GST_WARNING_OBJECT (obj, "max_rate < %d, which makes no sense",
-        GST_OSS4_MIN_SAMPLE_RATE);
-    return FALSE;
-  }
-
-  GST_LOG_OBJECT (obj, "min_rate %d, max_rate %d (originally: %d, %d)",
-      minrate, maxrate, ai->min_rate, ai->max_rate);
-
-  if ((ai->caps & PCM_CAP_FREERATE)) {
-    GST_LOG_OBJECT (obj, "device supports any sample rate between min and max");
-    if (minrate == maxrate) {
-      g_value_init (&val, G_TYPE_INT);
-      g_value_set_int (&val, maxrate);
-    } else {
-      g_value_init (&val, GST_TYPE_INT_RANGE);
-      gst_value_set_int_range (&val, minrate, maxrate);
-    }
-  } else {
-    GST_LOG_OBJECT (obj, "%d sample rates:", ai->nrates);
-    g_value_init (&val, GST_TYPE_LIST);
-    for (i = 0; i < ai->nrates; ++i) {
-      GST_LOG_OBJECT (obj, " rate: %d", ai->rates[i]);
-
-      if (ai->rates[i] >= minrate && ai->rates[i] <= maxrate) {
-        GValue rate_val = { 0, };
-
-        g_value_init (&rate_val, G_TYPE_INT);
-        g_value_set_int (&rate_val, ai->rates[i]);
-        gst_value_list_append_value (&val, &rate_val);
-        g_value_unset (&rate_val);
-      }
-    }
-
-    if (gst_value_list_get_size (&val) == 0) {
-      g_value_unset (&val);
-      return FALSE;
-    }
-  }
-
-  for (i = 0; i < gst_caps_get_size (caps); ++i) {
-    GstStructure *s;
-
-    s = gst_caps_get_structure (caps, i);
-    gst_structure_set_value (s, "rate", &val);
-  }
-
-  g_value_unset (&val);
-
-  return TRUE;
-}
-
-static void
-gst_oss4_audio_add_channel_layout (GstObject * obj, guint64 layout,
-    guint num_channels, GstStructure * s)
-{
-  const GstAudioChannelPosition pos_map[16] = {
-    GST_AUDIO_CHANNEL_POSITION_NONE,    /* 0 = dunno          */
-    GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,      /* 1 = left           */
-    GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,     /* 2 = right          */
-    GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,    /* 3 = center         */
-    GST_AUDIO_CHANNEL_POSITION_LFE,     /* 4 = lfe            */
-    GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT,       /* 5 = left surround  */
-    GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT,      /* 6 = right surround */
-    GST_AUDIO_CHANNEL_POSITION_REAR_LEFT,       /* 7 = left rear      */
-    GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT,      /* 8 = right rear     */
-    GST_AUDIO_CHANNEL_POSITION_NONE,
-    GST_AUDIO_CHANNEL_POSITION_NONE,
-    GST_AUDIO_CHANNEL_POSITION_NONE,
-    GST_AUDIO_CHANNEL_POSITION_NONE,
-    GST_AUDIO_CHANNEL_POSITION_NONE,
-    GST_AUDIO_CHANNEL_POSITION_NONE,
-    GST_AUDIO_CHANNEL_POSITION_NONE
-  };
-  GstAudioChannelPosition ch_layout[8] = { 0, };
-  guint speaker_pos;            /* speaker position as defined by OSS */
-  guint i;
-
-  g_return_if_fail (num_channels <= G_N_ELEMENTS (ch_layout));
-
-  for (i = 0; i < num_channels; ++i) {
-    /* layout contains up to 16 speaker positions, with each taking up 4 bits */
-    speaker_pos = (guint) ((layout >> (i * 4)) & 0x0f);
-
-    /* if it's a channel position that's unknown to us, set all to NONE and
-     * bail out */
-    if (G_UNLIKELY (pos_map[speaker_pos] == GST_AUDIO_CHANNEL_POSITION_NONE))
-      goto no_layout;
-
-    ch_layout[i] = pos_map[speaker_pos];
-  }
-  gst_audio_set_channel_positions (s, ch_layout);
-  return;
-
-no_layout:
-  {
-    /* only warn if it's really unknown, position 0 is ok and represents NONE
-     * (in which case we also just set all others to NONE ignoring the other
-     * positions in the OSS-given layout, because that's what we currently
-     * require in GStreamer) */
-    if (speaker_pos != 0) {
-      GST_WARNING_OBJECT (obj, "unknown OSS channel position %x", ch_layout[i]);
-    }
-    for (i = 0; i < num_channels; ++i) {
-      ch_layout[i] = GST_AUDIO_CHANNEL_POSITION_NONE;
-    }
-    gst_audio_set_channel_positions (s, ch_layout);
-    return;
-  }
-}
-
-/* arbitrary max. limit */
-#define GST_OSS4_MIN_CHANNELS 1
-#define GST_OSS4_MAX_CHANNELS 4096
-
-/* takes ownership of the input caps */
-static GstCaps *
-gst_oss4_audio_detect_channels (GstObject * obj, int fd, oss_audioinfo * ai,
-    GstCaps * in_caps)
-{
-  const gchar *forced_layout;
-  GstStructure *s = NULL;
-  guint64 layout = 0;
-  GstCaps *chan_caps = NULL;
-  GstCaps *out_caps = NULL;
-  int minchans, maxchans;
-  int c, i, j;
-
-  /* GST_OSS4_CHANNEL_LAYOUT environment variable: may be used to force a
-   * particular channel layout (if it contains an odd number of channel
-   * positions it will also make us advertise a channel layout for that
-   * channel count, even if we'd usually skip it; this is especially useful
-   * for folks with 2.1 speakers, I guess) */
-  forced_layout = g_getenv ("GST_OSS4_CHANNEL_LAYOUT");
-
-  minchans = ai->min_channels;
-  maxchans = ai->max_channels;
-
-  /* sanity check */
-  if (minchans > maxchans) {
-    GST_WARNING_OBJECT (obj, "min_chans %d > max_chans %d (buggy driver?)",
-        minchans, maxchans);
-    maxchans = ai->min_channels;        /* swap */
-    minchans = ai->max_channels;
-  }
-
-  /* limit to something sensible */
-  if (minchans < GST_OSS4_MIN_CHANNELS)
-    minchans = GST_OSS4_MIN_CHANNELS;
-  if (maxchans > GST_OSS4_MAX_CHANNELS)
-    maxchans = GST_OSS4_MAX_CHANNELS;
-
-  if (maxchans < GST_OSS4_MIN_CHANNELS) {
-    GST_WARNING_OBJECT (obj, "max_chans < %d, which makes no sense",
-        GST_OSS4_MIN_CHANNELS);
-    gst_caps_unref (in_caps);
-    return NULL;
-  }
-
-  GST_LOG_OBJECT (obj, "min_channels %d, max_channels %d (originally: %d, %d)",
-      minchans, maxchans, ai->min_channels, ai->max_channels);
-
-  chan_caps = gst_caps_new_empty ();
-
-  /* first do the simple cases: mono + stereo (channel layout implied) */
-  if (minchans == 1 && maxchans == 1)
-    s = gst_structure_new ("x", "channels", G_TYPE_INT, 1, NULL);
-  else if (minchans == 2 && maxchans >= 2)
-    s = gst_structure_new ("x", "channels", G_TYPE_INT, 2, NULL);
-  else if (minchans == 1 && maxchans >= 2)
-    s = gst_structure_new ("x", "channels", GST_TYPE_INT_RANGE, 1, 2, NULL);
-  gst_caps_append_structure (chan_caps, s);
-  s = NULL;
-
-  /* TODO: we assume all drivers use a left/right layout for stereo here */
-  if (maxchans <= 2)
-    goto done;
-
-  if (ioctl (fd, SNDCTL_DSP_GET_CHNORDER, &layout) == -1) {
-    GST_WARNING_OBJECT (obj, "couldn't query channel layout, assuming default");
-    layout = CHNORDER_NORMAL;
-  }
-  GST_DEBUG_OBJECT (obj, "channel layout: %08" G_GINT64_MODIFIER "x", layout);
-
-  /* e.g. forced 2.1 layout would be GST_OSS4_CHANNEL_LAYOUT=421 */
-  if (forced_layout != NULL && *forced_layout != '\0') {
-    guint layout_len;
-
-    layout_len = strlen (forced_layout);
-    if (layout_len >= minchans && layout_len <= maxchans) {
-      layout = g_ascii_strtoull (forced_layout, NULL, 16);
-      maxchans = layout_len;
-      GST_DEBUG_OBJECT (obj, "forced channel layout: %08" G_GINT64_MODIFIER "x"
-          " ('%s'), maxchans now %d", layout, forced_layout, maxchans);
-    } else {
-      GST_WARNING_OBJECT (obj, "ignoring forced channel layout: layout has %d "
-          "channel positions but maxchans is %d", layout_len, maxchans);
-    }
-  }
-
-  /* need to advertise channel layouts for anything >2 and <=8 channels */
-  for (c = MAX (3, minchans); c <= MIN (maxchans, 8); c++) {
-    /* "The min_channels and max_channels fields define the limits for the
-     * number of channels. However some devices don't support all channels
-     * within this range. It's possible that the odd values (3, 5, 7, 9, etc).
-     * are not supported. There is currently no way to check for this other
-     * than checking if SNDCTL_DSP_CHANNELS accepts the requested value.
-     * Another approach is trying to avoid using odd number of channels."
-     *
-     * So, we don't know for sure if these odd values are supported:
-     */
-    if ((c == 3 || c == 5 || c == 7) && (c != maxchans)) {
-      GST_LOG_OBJECT (obj, "not adding layout with %d channels", c);
-      continue;
-    }
-
-    s = gst_structure_new ("x", "channels", G_TYPE_INT, c, NULL);
-    gst_oss4_audio_add_channel_layout (obj, layout, c, s);
-    GST_LOG_OBJECT (obj, "c=%u, appending struct %" GST_PTR_FORMAT, c, s);
-    gst_caps_append_structure (chan_caps, s);
-    s = NULL;
-  }
-
-  if (maxchans <= 8)
-    goto done;
-
-  /* for everything >8 channels, CHANNEL_POSITION_NONE is implied. */
-  if (minchans == maxchans || maxchans == 9) {
-    s = gst_structure_new ("x", "channels", G_TYPE_INT, maxchans, NULL);
-  } else {
-    s = gst_structure_new ("x", "channels", GST_TYPE_INT_RANGE,
-        MAX (9, minchans), maxchans, NULL);
-  }
-  gst_caps_append_structure (chan_caps, s);
-  s = NULL;
-
-done:
-
-  GST_LOG_OBJECT (obj, "channel structures: %" GST_PTR_FORMAT, chan_caps);
-
-  out_caps = gst_caps_new_empty ();
-
-  /* combine each structure in the input caps with each channel caps struct */
-  for (i = 0; i < gst_caps_get_size (in_caps); ++i) {
-    const GstStructure *in_s;
-
-    in_s = gst_caps_get_structure (in_caps, i);
-
-    for (j = 0; j < gst_caps_get_size (chan_caps); ++j) {
-      const GstStructure *chan_s;
-      const GValue *val;
-
-      s = gst_structure_copy (in_s);
-      chan_s = gst_caps_get_structure (chan_caps, j);
-      if ((val = gst_structure_get_value (chan_s, "channels")))
-        gst_structure_set_value (s, "channels", val);
-      if ((val = gst_structure_get_value (chan_s, "channel-positions")))
-        gst_structure_set_value (s, "channel-positions", val);
-
-      gst_caps_append_structure (out_caps, s);
-      s = NULL;
-    }
-  }
-
-  gst_caps_unref (in_caps);
-  gst_caps_unref (chan_caps);
-  return out_caps;
-}
-
-GstCaps *
-gst_oss4_audio_probe_caps (GstObject * obj, int fd)
-{
-  oss_audioinfo ai = { 0, };
-  gboolean output;
-  GstCaps *caps;
-  int nonnative_formats = 0;
-  int formats, i;
-
-  output = GST_IS_OSS4_SINK (obj);
-
-  /* -1 = get info for currently open device (fd). This will fail with
-   * OSS build <= 1013 because of a bug in OSS */
-  ai.dev = -1;
-  if (ioctl (fd, SNDCTL_ENGINEINFO, &ai) == -1)
-    goto engineinfo_failed;
-
-  formats = (output) ? ai.oformats : ai.iformats;
-
-  GST_LOG_OBJECT (obj, "%s formats : 0x%08x", (output) ? "out" : "in", formats);
-
-  caps = gst_caps_new_empty ();
-
-  /* first list all the formats natively supported */
-  for (i = 0; i < G_N_ELEMENTS (fmt_map); ++i) {
-    if ((formats & fmt_map[i].oss_fmt)) {
-      gst_oss4_append_format_to_caps (&fmt_map[i], caps);
-    } else if ((fmt_map[i].oss_fmt & CONVERTIBLE_FORMATS)) {
-      nonnative_formats |= fmt_map[i].oss_fmt;
-    }
-  }
-
-  GST_LOG_OBJECT (obj, "adding non-native %s formats : 0x%08x",
-      (output) ? "out" : "in", nonnative_formats);
-
-  /* now append non-native formats for which conversion would be needed */
-  for (i = 0; i < G_N_ELEMENTS (fmt_map); ++i) {
-    if ((nonnative_formats & fmt_map[i].oss_fmt)) {
-      gst_oss4_append_format_to_caps (&fmt_map[i], caps);
-    }
-  }
-
-  gst_caps_do_simplify (caps);
-  GST_LOG_OBJECT (obj, "formats: %" GST_PTR_FORMAT, caps);
-
-  if (!gst_oss4_audio_detect_rates (obj, &ai, caps))
-    goto detect_rates_failed;
-
-  caps = gst_oss4_audio_detect_channels (obj, fd, &ai, caps);
-  if (caps == NULL)
-    goto detect_channels_failed;
-
-  GST_LOG_OBJECT (obj, "probed caps: %" GST_PTR_FORMAT, caps);
-
-  return caps;
-
-/* ERRORS */
-engineinfo_failed:
-  {
-    GST_WARNING ("ENGINEINFO supported formats probe failed: %s",
-        g_strerror (errno));
-    return NULL;
-  }
-detect_rates_failed:
-  {
-    GST_WARNING_OBJECT (obj, "failed to detect supported sample rates");
-    gst_caps_unref (caps);
-    return NULL;
-  }
-detect_channels_failed:
-  {
-    GST_WARNING_OBJECT (obj, "failed to detect supported channels");
-    gst_caps_unref (caps);
-    return NULL;
-  }
-}
-
-GstCaps *
-gst_oss4_audio_get_template_caps (void)
-{
-  GstCaps *caps;
-  gint i;
-
-  caps = gst_caps_new_empty ();
-
-  for (i = 0; i < G_N_ELEMENTS (fmt_map); ++i) {
-    gst_oss4_append_format_to_caps (&fmt_map[i], caps);
-  }
-
-  gst_caps_do_simplify (caps);
-
-  for (i = 0; i < gst_caps_get_size (caps); ++i) {
-    GstStructure *s;
-
-    s = gst_caps_get_structure (caps, i);
-    gst_structure_set (s, "rate", GST_TYPE_INT_RANGE, GST_OSS4_MIN_SAMPLE_RATE,
-        GST_OSS4_MAX_SAMPLE_RATE, "channels", GST_TYPE_INT_RANGE,
-        GST_OSS4_MIN_CHANNELS, GST_OSS4_MAX_CHANNELS, NULL);
-  }
-
-  return caps;
-}
-
-/* called by gst_oss4_sink_prepare() and gst_oss4_source_prepare() */
-gboolean
-gst_oss4_audio_set_format (GstObject * obj, int fd, GstRingBufferSpec * spec)
-{
-  struct audio_buf_info info = { 0, };
-  int fmt, chans, rate;
-
-  fmt = gst_oss4_audio_get_oss_format (spec->format);
-  if (fmt == 0)
-    goto wrong_format;
-
-  if (spec->type == GST_BUFTYPE_LINEAR && spec->width != 32 &&
-      spec->width != 24 && spec->width != 16 && spec->width != 8) {
-    goto dodgy_width;
-  }
-
-  /* format */
-  GST_LOG_OBJECT (obj, "setting format: %d", fmt);
-  if (ioctl (fd, SNDCTL_DSP_SETFMT, &fmt) == -1)
-    goto set_format_failed;
-
-  /* channels */
-  GST_LOG_OBJECT (obj, "setting channels: %d", spec->channels);
-  chans = spec->channels;
-  if (ioctl (fd, SNDCTL_DSP_CHANNELS, &chans) == -1)
-    goto set_channels_failed;
-
-  /* rate */
-  GST_LOG_OBJECT (obj, "setting rate: %d", spec->rate);
-  rate = spec->rate;
-  if (ioctl (fd, SNDCTL_DSP_SPEED, &rate) == -1)
-    goto set_rate_failed;
-
-  GST_DEBUG_OBJECT (obj, "effective format   : %d", fmt);
-  GST_DEBUG_OBJECT (obj, "effective channels : %d", chans);
-  GST_DEBUG_OBJECT (obj, "effective rate     : %d", rate);
-
-  /* make sure format, channels, and rate are the ones we requested */
-  if (fmt != gst_oss4_audio_get_oss_format (spec->format) ||
-      chans != spec->channels || rate != spec->rate) {
-    /* This shouldn't happen, but hey */
-    goto format_not_what_was_requested;
-  }
-
-  if (GST_IS_OSS4_SOURCE (obj)) {
-    if (ioctl (fd, SNDCTL_DSP_GETISPACE, &info) == -1)
-      goto get_ispace_failed;
-  } else {
-    if (ioctl (fd, SNDCTL_DSP_GETOSPACE, &info) == -1)
-      goto get_ospace_failed;
-  }
-
-  spec->segsize = info.fragsize;
-
-  /* we add some extra fragments -- this helps us account for delays due to
-   * conversion buffer, streams queueing, etc.  It is important that these
-   * be taken into account because otherwise the delay counter can wind up
-   * being too large, and the buffer will wrap.  */
-  spec->segtotal = info.fragstotal + 4;
-
-  spec->bytes_per_sample = (spec->width / 8) * spec->channels;
-
-  GST_DEBUG_OBJECT (obj, "got segsize: %d, segtotal: %d, value: %08x",
-      spec->segsize, spec->segtotal, info.fragsize);
-
-  return TRUE;
-
-/* ERRORS */
-wrong_format:
-  {
-    GST_ELEMENT_ERROR (obj, RESOURCE, SETTINGS, (NULL),
-        ("Unable to get format %d", spec->format));
-    return FALSE;
-  }
-dodgy_width:
-  {
-    GST_ELEMENT_ERROR (obj, RESOURCE, SETTINGS, (NULL),
-        ("unexpected width %d", spec->width));
-    return FALSE;
-  }
-set_format_failed:
-  {
-    GST_ELEMENT_ERROR (obj, RESOURCE, SETTINGS, (NULL),
-        ("DSP_SETFMT(%d) failed: %s", fmt, g_strerror (errno)));
-    return FALSE;
-  }
-set_channels_failed:
-  {
-    GST_ELEMENT_ERROR (obj, RESOURCE, SETTINGS, (NULL),
-        ("DSP_CHANNELS(%d) failed: %s", chans, g_strerror (errno)));
-    return FALSE;
-  }
-set_rate_failed:
-  {
-    GST_ELEMENT_ERROR (obj, RESOURCE, SETTINGS, (NULL),
-        ("DSP_SPEED(%d) failed: %s", rate, g_strerror (errno)));
-    return FALSE;
-  }
-get_ospace_failed:
-  {
-    GST_ELEMENT_ERROR (obj, RESOURCE, SETTINGS, (NULL),
-        ("DSP_GETOSPACE failed: %s", g_strerror (errno)));
-    return FALSE;
-  }
-get_ispace_failed:
-  {
-    GST_ELEMENT_ERROR (obj, RESOURCE, SETTINGS, (NULL),
-        ("DSP_GETISPACE failed: %s", g_strerror (errno)));
-    return FALSE;
-  }
-format_not_what_was_requested:
-  {
-    GST_ELEMENT_ERROR (obj, RESOURCE, SETTINGS, (NULL),
-        ("Format actually configured wasn't the one we requested. This is "
-            "probably either a bug in the driver or in the format probing code."));
-    return FALSE;
-  }
-}
-
-int
-gst_oss4_audio_get_version (GstObject * obj, int fd)
-{
-  gint ver = 0;
-
-  /* we use the old ioctl here on purpose instead of SNDCTL_SYSINFO */
-  if (ioctl (fd, OSS_GETVERSION, &ver) < 0) {
-    GST_LOG_OBJECT (obj, "OSS_GETVERSION failed: %s", g_strerror (errno));
-    return -1;
-  }
-  GST_LOG_OBJECT (obj, "OSS version: 0x%08x", ver);
-  return ver;
-}
-
-gboolean
-gst_oss4_audio_check_version (GstObject * obj, int fd)
-{
-  return (gst_oss4_audio_get_version (obj, fd) >= GST_MIN_OSS4_VERSION);
-}
-
-gchar *
-gst_oss4_audio_find_device (GstObject * oss)
-{
-  GValueArray *arr;
-  gchar *ret = NULL;
-
-  arr = gst_property_probe_probe_and_get_values_name (GST_PROPERTY_PROBE (oss),
-      "device");
-
-  if (arr != NULL) {
-    if (arr->n_values > 0) {
-      const GValue *val;
-
-      val = g_value_array_get_nth (arr, 0);
-      ret = g_value_dup_string (val);
-    }
-    g_value_array_free (arr);
-  }
-
-  GST_LOG_OBJECT (oss, "first device found: %s", GST_STR_NULL (ret));
-
-  return ret;
-}
-
-static gboolean
-plugin_init (GstPlugin * plugin)
-{
-  gint rank;
-
-  GST_DEBUG_CATEGORY_INIT (oss4sink_debug, "oss4sink", 0, "OSS4 audio sink");
-  GST_DEBUG_CATEGORY_INIT (oss4src_debug, "oss4src", 0, "OSS4 audio src");
-  GST_DEBUG_CATEGORY_INIT (oss4mixer_debug, "oss4mixer", 0, "OSS4 mixer");
-  GST_DEBUG_CATEGORY_INIT (oss4_debug, "oss4", 0, "OSS4 plugin");
-
-#ifdef ENABLE_NLS
-  GST_DEBUG ("binding text domain %s to locale dir %s", GETTEXT_PACKAGE,
-      LOCALEDIR);
-  bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
-  bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
-#endif
-
-  /* we want a higher rank than the legacy OSS elements have now */
-  rank = GST_RANK_SECONDARY + 1;
-
-  if (!gst_element_register (plugin, "oss4sink", rank, GST_TYPE_OSS4_SINK) ||
-      !gst_element_register (plugin, "oss4src", rank, GST_TYPE_OSS4_SOURCE) ||
-      !gst_element_register (plugin, "oss4mixer", rank, GST_TYPE_OSS4_MIXER)) {
-    return FALSE;
-  }
-
-  return TRUE;
-}
-
-GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
-    GST_VERSION_MINOR,
-    "oss4",
-    "Open Sound System (OSS) version 4 support for GStreamer",
-    plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
diff --git a/sys/oss4/oss4-audio.h b/sys/oss4/oss4-audio.h
deleted file mode 100644
index d22036417..000000000
--- a/sys/oss4/oss4-audio.h
+++ /dev/null
@@ -1,43 +0,0 @@
-/* GStreamer OSS4 audio plugin
- * Copyright (C) 2007-2008 Tim-Philipp Müller <tim centricular net>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef GST_OSS4_AUDIO_H
-#define GST_OSS4_AUDIO_H_
-
-#include <gst/gst.h>
-#include <gst/audio/gstringbuffer.h>
-
-/* This is the minimum version we require */
-#define GST_MIN_OSS4_VERSION  0x040003
-
-int       gst_oss4_audio_get_version (GstObject * obj, int fd);
-
-gboolean  gst_oss4_audio_check_version (GstObject * obj, int fd);
-
-GstCaps * gst_oss4_audio_probe_caps  (GstObject * obj, int fd);
-
-gboolean  gst_oss4_audio_set_format  (GstObject * obj, int fd, GstRingBufferSpec * spec);
-
-GstCaps * gst_oss4_audio_get_template_caps (void);
-
-gchar   * gst_oss4_audio_find_device (GstObject * oss);
-
-#endif /* GST_OSS4_AUDIO_H */
-
-
diff --git a/sys/oss4/oss4-mixer-enum.c b/sys/oss4/oss4-mixer-enum.c
deleted file mode 100644
index 4b64bb1fc..000000000
--- a/sys/oss4/oss4-mixer-enum.c
+++ /dev/null
@@ -1,269 +0,0 @@
-/* GStreamer OSS4 mixer enumeration control
- * Copyright (C) 2007-2008 Tim-Philipp Müller <tim centricular net>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-/* An 'enum' in gnome-volume-control / GstMixer is represented by a
- * GstMixerOptions object
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <gst/gst-i18n-plugin.h>
-
-#define NO_LEGACY_MIXER
-#include "oss4-mixer.h"
-#include "oss4-mixer-enum.h"
-#include "oss4-soundcard.h"
-
-GST_DEBUG_CATEGORY_EXTERN (oss4mixer_debug);
-#define GST_CAT_DEFAULT oss4mixer_debug
-
-static GList *gst_oss4_mixer_enum_get_values (GstMixerOptions * options);
-
-/* GstMixerTrack is a plain GObject, so let's just use the GLib macro here */
-G_DEFINE_TYPE (GstOss4MixerEnum, gst_oss4_mixer_enum, GST_TYPE_MIXER_OPTIONS);
-
-static void
-gst_oss4_mixer_enum_init (GstOss4MixerEnum * e)
-{
-  e->need_update = TRUE;
-}
-
-static void
-gst_oss4_mixer_enum_dispose (GObject * obj)
-{
-  GstMixerOptions *options = GST_MIXER_OPTIONS (obj);
-
-  /* our list is a flat list with constant strings, but the GstMixerOptions
-   * dispose will try to g_free the contained strings, so clean up the list
-   * before chaining up to GstMixerOptions */
-  g_list_free (options->values);
-  options->values = NULL;
-
-  G_OBJECT_CLASS (gst_oss4_mixer_enum_parent_class)->dispose (obj);
-}
-
-static void
-gst_oss4_mixer_enum_class_init (GstOss4MixerEnumClass * klass)
-{
-  GObjectClass *gobject_class = (GObjectClass *) klass;
-  GstMixerOptionsClass *mixeroptions_class = (GstMixerOptionsClass *) klass;
-
-  gobject_class->dispose = gst_oss4_mixer_enum_dispose;
-  mixeroptions_class->get_values = gst_oss4_mixer_enum_get_values;
-}
-
-static GList *
-gst_oss4_mixer_enum_get_values_locked (GstMixerOptions * options)
-{
-  GstOss4MixerEnum *e = GST_OSS4_MIXER_ENUM_CAST (options);
-  GList *oldlist, *list = NULL;
-  int i;
-
-  /* if current list of values is empty, update/re-check in any case */
-  if (!e->need_update && options->values != NULL)
-    return options->values;
-
-  GST_LOG_OBJECT (e, "updating available values for %s", e->mc->mixext.extname);
-
-  for (i = 0; i < e->mc->mixext.maxvalue; ++i) {
-    const gchar *s;
-
-    s = g_quark_to_string (e->mc->enum_vals[i]);
-    if (MIXEXT_ENUM_IS_AVAILABLE (e->mc->mixext, i)) {
-      GST_LOG_OBJECT (e, "option '%s' is available", s);
-      list = g_list_prepend (list, (gpointer) s);
-    } else {
-      GST_LOG_OBJECT (e, "option '%s' is currently not available", s);
-    }
-  }
-
-  list = g_list_reverse (list);
-
-  /* this is not thread-safe, but then the entire GstMixer API isn't really,
-   * since we return foo->list and not a copy and don't take any locks, so
-   * not much we can do here but pray; we're usually either called from _new()
-   * or from within _get_values() though, so it should be okay. We could use
-   * atomic ops here, but I'm not sure how much more that really buys us.*/
-  oldlist = options->values;    /* keep window small */
-  options->values = list;
-  g_list_free (oldlist);
-
-  e->need_update = FALSE;
-
-  return options->values;
-}
-
-static GList *
-gst_oss4_mixer_enum_get_values (GstMixerOptions * options)
-{
-  GstOss4MixerEnum *e = GST_OSS4_MIXER_ENUM (options);
-  GList *list;
-
-  /* we take the lock here mostly to serialise ioctls with the watch thread */
-  GST_OBJECT_LOCK (e->mixer);
-
-  list = gst_oss4_mixer_enum_get_values_locked (options);
-
-  GST_OBJECT_UNLOCK (e->mixer);
-
-  return list;
-}
-
-static const gchar *
-gst_oss4_mixer_enum_get_current_value (GstOss4MixerEnum * e)
-{
-  const gchar *cur_val = NULL;
-
-  if (e->mc->enum_vals != NULL && e->mc->last_val < e->mc->mixext.maxvalue) {
-    cur_val = g_quark_to_string (e->mc->enum_vals[e->mc->last_val]);
-  }
-
-  return cur_val;
-}
-
-static gboolean
-gst_oss4_mixer_enum_update_current (GstOss4MixerEnum * e)
-{
-  int cur = -1;
-
-  if (!gst_oss4_mixer_get_control_val (e->mixer, e->mc, &cur))
-    return FALSE;
-
-  if (cur < 0 || cur >= e->mc->mixext.maxvalue) {
-    GST_WARNING_OBJECT (e, "read value %d out of bounds [0-%d]", cur,
-        e->mc->mixext.maxvalue - 1);
-    e->mc->last_val = 0;
-    return FALSE;
-  }
-
-  return TRUE;
-}
-
-gboolean
-gst_oss4_mixer_enum_set_option (GstOss4MixerEnum * e, const gchar * value)
-{
-  GQuark q;
-  int i;
-
-  q = g_quark_try_string (value);
-  if (q == 0) {
-    GST_WARNING_OBJECT (e, "unknown option '%s'", value);
-    return FALSE;
-  }
-
-  for (i = 0; i < e->mc->mixext.maxvalue; ++i) {
-    if (q == e->mc->enum_vals[i])
-      break;
-  }
-
-  if (i >= e->mc->mixext.maxvalue) {
-    GST_WARNING_OBJECT (e, "option '%s' is not valid for this control", value);
-    return FALSE;
-  }
-
-  GST_LOG_OBJECT (e, "option '%s' = %d", value, i);
-
-  if (!MIXEXT_ENUM_IS_AVAILABLE (e->mc->mixext, i)) {
-    GST_WARNING_OBJECT (e, "option '%s' is not selectable currently", value);
-    return FALSE;
-  }
-
-  if (!gst_oss4_mixer_set_control_val (e->mixer, e->mc, i)) {
-    GST_WARNING_OBJECT (e, "could not set option '%s' (%d)", value, i);
-    return FALSE;
-  }
-
-  /* and re-read current value with sanity checks (or could just assign here) */
-  gst_oss4_mixer_enum_update_current (e);
-
-  return TRUE;
-}
-
-const gchar *
-gst_oss4_mixer_enum_get_option (GstOss4MixerEnum * e)
-{
-  const gchar *cur_str = NULL;
-
-  if (!gst_oss4_mixer_enum_update_current (e)) {
-    GST_WARNING_OBJECT (e, "failed to read current value");
-    return NULL;
-  }
-
-  cur_str = gst_oss4_mixer_enum_get_current_value (e);
-  GST_LOG_OBJECT (e, "%s (%d)", GST_STR_NULL (cur_str), e->mc->last_val);
-  return cur_str;
-}
-
-GstMixerTrack *
-gst_oss4_mixer_enum_new (GstOss4Mixer * mixer, GstOss4MixerControl * mc)
-{
-  GstOss4MixerEnum *e;
-  GstMixerTrack *track;
-
-  e = g_object_new (GST_TYPE_OSS4_MIXER_ENUM, "untranslated-label",
-      mc->mixext.extname, NULL);
-  e->mixer = mixer;
-  e->mc = mc;
-
-  track = GST_MIXER_TRACK (e);
-
-  /* caller will set track->label and track->flags */
-
-  track->num_channels = 0;
-  track->min_volume = 0;
-  track->max_volume = 0;
-
-  (void) gst_oss4_mixer_enum_get_values_locked (GST_MIXER_OPTIONS (track));
-
-  if (!gst_oss4_mixer_enum_update_current (e)) {
-    GST_WARNING_OBJECT (track, "failed to read current value, returning NULL");
-    g_object_unref (track);
-    track = NULL;
-  }
-
-  GST_LOG_OBJECT (e, "current value: %d (%s)", e->mc->last_val,
-      gst_oss4_mixer_enum_get_current_value (e));
-
-  return track;
-}
-
-/* This is called from the watch thread */
-void
-gst_oss4_mixer_enum_process_change_unlocked (GstMixerTrack * track)
-{
-  GstOss4MixerEnum *e = GST_OSS4_MIXER_ENUM_CAST (track);
-
-  gchar *cur;
-
-  if (!e->mc->changed && !e->mc->list_changed)
-    return;
-
-  if (e->mc->list_changed) {
-    gst_mixer_options_list_changed (GST_MIXER (e->mixer),
-        GST_MIXER_OPTIONS (e));
-  }
-
-  GST_OBJECT_LOCK (e->mixer);
-  cur = (gchar *) gst_oss4_mixer_enum_get_current_value (e);
-  GST_OBJECT_UNLOCK (e->mixer);
-
-  gst_mixer_option_changed (GST_MIXER (e->mixer), GST_MIXER_OPTIONS (e), cur);
-}
diff --git a/sys/oss4/oss4-mixer-enum.h b/sys/oss4/oss4-mixer-enum.h
deleted file mode 100644
index 9fd816690..000000000
--- a/sys/oss4/oss4-mixer-enum.h
+++ /dev/null
@@ -1,67 +0,0 @@
-/* GStreamer OSS4 mixer on/off enum control
- * Copyright (C) 2007-2008 Tim-Philipp Müller <tim centricular net>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef GST_OSS4_MIXER_ENUM_H
-#define GST_OSS4_MIXER_ENUM_H
-
-#include <gst/gst.h>
-#include <gst/interfaces/mixer.h>
-
-#include "oss4-mixer.h"
-
-G_BEGIN_DECLS
-
-#define GST_TYPE_OSS4_MIXER_ENUM            (gst_oss4_mixer_enum_get_type())
-#define GST_OSS4_MIXER_ENUM(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OSS4_MIXER_ENUM,GstOss4MixerEnum))
-#define GST_OSS4_MIXER_ENUM_CAST(obj)       ((GstOss4MixerEnum *)(obj))
-#define GST_OSS4_MIXER_ENUM_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OSS4_MIXER_ENUM,GstOss4MixerEnumClass))
-#define GST_IS_OSS4_MIXER_ENUM(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OSS4_MIXER_ENUM))
-#define GST_IS_OSS4_MIXER_ENUM_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OSS4_MIXER_ENUM))
-
-typedef struct _GstOss4MixerEnum GstOss4MixerEnum;
-typedef struct _GstOss4MixerEnumClass GstOss4MixerEnumClass;
-
-struct _GstOss4MixerEnum {
-  GstMixerOptions  mixer_option;
-
-  GstOss4MixerControl  * mc;
-  GstOss4Mixer         * mixer;      /* the mixer we belong to (no ref taken) */
-
-  gboolean               need_update;
-};
-
-struct _GstOss4MixerEnumClass {
-  GstMixerOptionsClass mixer_option_class;
-};
-
-GType           gst_oss4_mixer_enum_get_type (void);
-
-gboolean        gst_oss4_mixer_enum_set_option (GstOss4MixerEnum * e, const gchar * value);
-
-const gchar   * gst_oss4_mixer_enum_get_option (GstOss4MixerEnum * e);
-
-GstMixerTrack * gst_oss4_mixer_enum_new (GstOss4Mixer * mixer, GstOss4MixerControl * mc);
-
-void            gst_oss4_mixer_enum_process_change_unlocked (GstMixerTrack * track);
-
-G_END_DECLS
-
-#endif /* GST_OSS4_MIXER_ENUM_H */
-
-
diff --git a/sys/oss4/oss4-mixer-slider.c b/sys/oss4/oss4-mixer-slider.c
deleted file mode 100644
index cdc910495..000000000
--- a/sys/oss4/oss4-mixer-slider.c
+++ /dev/null
@@ -1,311 +0,0 @@
-/* GStreamer OSS4 mixer slider control
- * Copyright (C) 2007-2008 Tim-Philipp Müller <tim centricular net>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-/* A 'slider' in gnome-volume-control / GstMixer is represented by a
- * GstMixerTrack with one or more channels.
- *
- * A slider should be either flagged as INPUT or OUTPUT (mostly because of
- * gnome-volume-control being littered with g_asserts for everything it doesn't
- * expect).
- *
- * From mixertrack.h:
- * "Input tracks can have 'recording' enabled, which means that any input will
- * be hearable into the speakers that are attached to the output. Mute is
- * obvious."
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <string.h>
-#include <errno.h>
-#include <sys/ioctl.h>
-
-#include <gst/gst-i18n-plugin.h>
-
-#define NO_LEGACY_MIXER
-#include "oss4-mixer-slider.h"
-
-GST_DEBUG_CATEGORY_EXTERN (oss4mixer_debug);
-#define GST_CAT_DEFAULT oss4mixer_debug
-
-/* GstMixerTrack is a plain GObject, so let's just use the GLib macro here */
-G_DEFINE_TYPE (GstOss4MixerSlider, gst_oss4_mixer_slider, GST_TYPE_MIXER_TRACK);
-
-static void
-gst_oss4_mixer_slider_class_init (GstOss4MixerSliderClass * klass)
-{
-  /* nothing to do here */
-}
-
-static void
-gst_oss4_mixer_slider_init (GstOss4MixerSlider * s)
-{
-  /* nothing to do here */
-}
-
-static int
-gst_oss4_mixer_slider_pack_volume (GstOss4MixerSlider * s, const gint * volumes)
-{
-  int val = 0;
-
-  switch (s->mc->mixext.type) {
-    case MIXT_MONOSLIDER:
-    case MIXT_MONOSLIDER16:
-    case MIXT_SLIDER:
-      val = volumes[0];
-      break;
-    case MIXT_STEREOSLIDER:
-      val = ((volumes[1] & 0xff) << 8) | (volumes[0] & 0xff);
-      break;
-    case MIXT_STEREOSLIDER16:
-      val = ((volumes[1] & 0xffff) << 16) | (volumes[0] & 0xffff);
-      break;
-    default:
-      g_return_val_if_reached (0);
-  }
-  return val;
-}
-
-static void
-gst_oss4_mixer_slider_unpack_volume (GstOss4MixerSlider * s, int v,
-    gint * volumes)
-{
-  guint32 val;                  /* use uint so bitshifting the highest bit works right */
-
-  val = (guint32) v;
-  switch (s->mc->mixext.type) {
-    case MIXT_SLIDER:
-      volumes[0] = val;
-      break;
-    case MIXT_MONOSLIDER:
-      /* oss repeats the value in the upper bits, as if it was stereo */
-      volumes[0] = val & 0x00ff;
-      break;
-    case MIXT_MONOSLIDER16:
-      /* oss repeats the value in the upper bits, as if it was stereo */
-      volumes[0] = val & 0x0000ffff;
-      break;
-    case MIXT_STEREOSLIDER:
-      volumes[0] = (val & 0x00ff);
-      volumes[1] = (val & 0xff00) >> 8;
-      break;
-    case MIXT_STEREOSLIDER16:
-      volumes[0] = (val & 0x0000ffff);
-      volumes[1] = (val & 0xffff0000) >> 16;
-      break;
-    default:
-      g_return_if_reached ();
-  }
-}
-
-gboolean
-gst_oss4_mixer_slider_get_volume (GstOss4MixerSlider * s, gint * volumes)
-{
-  GstMixerTrack *track = GST_MIXER_TRACK (s);
-  int v = 0;
-
-  /* if we're supposed to be muted, and don't have an actual mute control
-   * (ie. 'simulate' the mute), then just return the volume as saved, not
-   * the actually set volume which is most likely 0 */
-  if (GST_MIXER_TRACK_HAS_FLAG (track, GST_MIXER_TRACK_MUTE) && !s->mc->mute) {
-    volumes[0] = s->volumes[0];
-    if (track->num_channels == 2)
-      volumes[1] = s->volumes[1];
-    return TRUE;
-  }
-
-  if (!gst_oss4_mixer_get_control_val (s->mixer, s->mc, &v))
-    return FALSE;
-
-  gst_oss4_mixer_slider_unpack_volume (s, v, volumes);
-
-  if (track->num_channels > 1) {
-    GST_LOG_OBJECT (s, "volume: left=%d, right=%d", volumes[0], volumes[1]);
-  } else {
-    GST_LOG_OBJECT (s, "volume: mono=%d", volumes[0]);
-  }
-
-  return TRUE;
-}
-
-gboolean
-gst_oss4_mixer_slider_set_volume (GstOss4MixerSlider * s, const gint * volumes)
-{
-  GstMixerTrack *track = GST_MIXER_TRACK (s);
-  int val = 0;
-
-  /* if we're supposed to be muted, and are 'simulating' the mute because
-   * we don't have a mute control, don't actually change the volume, just
-   * save it as the new desired volume for later when we get unmuted again */
-  if (!GST_MIXER_TRACK_HAS_FLAG (track, GST_MIXER_TRACK_NO_MUTE)) {
-    if (GST_MIXER_TRACK_HAS_FLAG (track, GST_MIXER_TRACK_MUTE) && !s->mc->mute)
-      goto done;
-  }
-
-  val = gst_oss4_mixer_slider_pack_volume (s, volumes);
-
-  if (track->num_channels > 1) {
-    GST_LOG_OBJECT (s, "left=%d, right=%d", volumes[0], volumes[1]);
-  } else {
-    GST_LOG_OBJECT (s, "mono=%d", volumes[0]);
-  }
-
-  if (!gst_oss4_mixer_set_control_val (s->mixer, s->mc, val))
-    return FALSE;
-
-done:
-
-  s->volumes[0] = volumes[0];
-  if (track->num_channels == 2)
-    s->volumes[1] = volumes[1];
-
-  return TRUE;
-}
-
-gboolean
-gst_oss4_mixer_slider_set_record (GstOss4MixerSlider * s, gboolean record)
-{
-  /* There doesn't seem to be a way to do this using the OSS4 mixer API, so
-   * just do nothing here for now. */
-  return FALSE;
-}
-
-gboolean
-gst_oss4_mixer_slider_set_mute (GstOss4MixerSlider * s, gboolean mute)
-{
-  GstMixerTrack *track = GST_MIXER_TRACK (s);
-  gboolean ret;
-
-  /* if the control does not support muting, then do not do anything */
-  if (GST_MIXER_TRACK_HAS_FLAG (track, GST_MIXER_TRACK_NO_MUTE)) {
-    return TRUE;
-  }
-
-  /* If we do not have a mute control, simulate mute (which is a bit broken,
-   * since we can not differentiate between capture/playback volume etc., so
-   * we just assume that setting the volume to 0 would be the same as muting
-   * this control) */
-  if (s->mc->mute == NULL) {
-    int volume;
-
-    if (mute) {
-      /* make sure the current volume values get saved. */
-      gst_oss4_mixer_slider_get_volume (s, s->volumes);
-      volume = 0;
-    } else {
-      volume = gst_oss4_mixer_slider_pack_volume (s, s->volumes);
-    }
-    ret = gst_oss4_mixer_set_control_val (s->mixer, s->mc, volume);
-  } else {
-    ret = gst_oss4_mixer_set_control_val (s->mixer, s->mc->mute, !!mute);
-  }
-
-  if (mute) {
-    track->flags |= GST_MIXER_TRACK_MUTE;
-  } else {
-    track->flags &= ~GST_MIXER_TRACK_MUTE;
-  }
-
-  return FALSE;
-}
-
-GstMixerTrack *
-gst_oss4_mixer_slider_new (GstOss4Mixer * mixer, GstOss4MixerControl * mc)
-{
-  GstOss4MixerSlider *s;
-  GstMixerTrack *track;
-  gint volumes[2] = { 0, };
-
-  s = g_object_new (GST_TYPE_OSS4_MIXER_SLIDER, "untranslated-label",
-      mc->mixext.extname, NULL);
-
-  track = GST_MIXER_TRACK (s);
-
-  /* caller will set track->label and track->flags */
-
-  s->mc = mc;
-  s->mixer = mixer;
-
-  /* we don't do value scaling but just present a scale of 0-maxvalue */
-  track->min_volume = 0;
-  track->max_volume = mc->mixext.maxvalue;
-
-  switch (mc->mixext.type) {
-    case MIXT_MONOSLIDER:
-    case MIXT_MONOSLIDER16:
-    case MIXT_SLIDER:
-      track->num_channels = 1;
-      break;
-    case MIXT_STEREOSLIDER:
-    case MIXT_STEREOSLIDER16:
-      track->num_channels = 2;
-      break;
-    default:
-      g_return_val_if_reached (NULL);
-  }
-
-  GST_LOG_OBJECT (track, "min=%d, max=%d, channels=%d", track->min_volume,
-      track->max_volume, track->num_channels);
-
-  if (!gst_oss4_mixer_slider_get_volume (s, volumes)) {
-    GST_WARNING_OBJECT (track, "failed to read volume, returning NULL");
-    g_object_unref (track);
-    track = NULL;
-  }
-
-  return track;
-}
-
-/* This is called from the watch thread */
-void
-gst_oss4_mixer_slider_process_change_unlocked (GstMixerTrack * track)
-{
-  GstOss4MixerSlider *s = GST_OSS4_MIXER_SLIDER_CAST (track);
-
-  if (s->mc->mute != NULL && s->mc->mute->changed) {
-    gst_mixer_mute_toggled (GST_MIXER (s->mixer), track,
-        !!s->mc->mute->last_val);
-  } else {
-    /* nothing to do here, since we don't/can't easily implement the record
-     * flag */
-  }
-
-  if (s->mc->changed) {
-    gint volumes[2] = { 0, 0 };
-
-    gst_oss4_mixer_slider_unpack_volume (s, s->mc->last_val, volumes);
-
-    /* if we 'simulate' the mute, update flag when the volume changes */
-    if (s->mc->mute == NULL) {
-      if (volumes[0] == 0 && volumes[1] == 0) {
-        track->flags |= GST_MIXER_TRACK_MUTE;
-      } else {
-        track->flags &= ~GST_MIXER_TRACK_MUTE;
-      }
-    }
-
-    gst_mixer_volume_changed (GST_MIXER (s->mixer), track, volumes);
-  }
-}
diff --git a/sys/oss4/oss4-mixer-slider.h b/sys/oss4/oss4-mixer-slider.h
deleted file mode 100644
index 3bee33f80..000000000
--- a/sys/oss4/oss4-mixer-slider.h
+++ /dev/null
@@ -1,70 +0,0 @@
-/* GStreamer OSS4 mixer slider control
- * Copyright (C) 2007-2008 Tim-Philipp Müller <tim centricular net>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef GST_OSS4_MIXER_SLIDER_H
-#define GST_OSS4_MIXER_SLIDER_H
-
-#include <gst/gst.h>
-#include <gst/interfaces/mixer.h>
-
-#include "oss4-mixer.h"
-
-G_BEGIN_DECLS
-
-#define GST_TYPE_OSS4_MIXER_SLIDER            (gst_oss4_mixer_slider_get_type())
-#define GST_OSS4_MIXER_SLIDER(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OSS4_MIXER_SLIDER,GstOss4MixerSlider))
-#define GST_OSS4_MIXER_SLIDER_CAST(obj)       ((GstOss4MixerSlider *)(obj))
-#define GST_OSS4_MIXER_SLIDER_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OSS4_MIXER_SLIDER,GstOss4MixerSliderClass))
-#define GST_IS_OSS4_MIXER_SLIDER(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OSS4_MIXER_SLIDER))
-#define GST_IS_OSS4_MIXER_SLIDER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OSS4_MIXER_SLIDER))
-
-typedef struct _GstOss4MixerSlider GstOss4MixerSlider;
-typedef struct _GstOss4MixerSliderClass GstOss4MixerSliderClass;
-
-struct _GstOss4MixerSlider {
-  GstMixerTrack  mixer_track;
-
-  GstOss4MixerControl * mc;
-  GstOss4Mixer        * mixer;      /* the mixer we belong to (no ref taken) */
-  gint                  volumes[2]; /* left/mono, right                      */
-};
-
-struct _GstOss4MixerSliderClass {
-  GstMixerTrackClass mixer_track_class;
-};
-
-GType           gst_oss4_mixer_slider_get_type (void);
-
-GstMixerTrack * gst_oss4_mixer_slider_new (GstOss4Mixer * mixer, GstOss4MixerControl * mc);
-
-gboolean        gst_oss4_mixer_slider_get_volume (GstOss4MixerSlider * s, gint * volumes);
-
-gboolean        gst_oss4_mixer_slider_set_volume (GstOss4MixerSlider * s, const gint * volumes);
-
-gboolean        gst_oss4_mixer_slider_set_record (GstOss4MixerSlider * s, gboolean record);
-
-gboolean        gst_oss4_mixer_slider_set_mute (GstOss4MixerSlider * s, gboolean mute);
-
-void            gst_oss4_mixer_slider_process_change_unlocked (GstMixerTrack * track);
-
-G_END_DECLS
-
-#endif /* GST_OSS4_MIXER_SLIDER_H */
-
-
diff --git a/sys/oss4/oss4-mixer-switch.c b/sys/oss4/oss4-mixer-switch.c
deleted file mode 100644
index 11d74b46d..000000000
--- a/sys/oss4/oss4-mixer-switch.c
+++ /dev/null
@@ -1,153 +0,0 @@
-/* GStreamer OSS4 mixer on/off switch control
- * Copyright (C) 2007-2008 Tim-Philipp Müller <tim centricular net>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-/* A simple ON/OFF 'switch' in gnome-volume-control / GstMixer is represented
- * by a GstMixerTrack with no channels.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <gst/gst-i18n-plugin.h>
-
-#define NO_LEGACY_MIXER
-#include "oss4-mixer-switch.h"
-#include "oss4-soundcard.h"
-
-GST_DEBUG_CATEGORY_EXTERN (oss4mixer_debug);
-#define GST_CAT_DEFAULT oss4mixer_debug
-
-/* GstMixerTrack is a plain GObject, so let's just use the GLib macro here */
-G_DEFINE_TYPE (GstOss4MixerSwitch, gst_oss4_mixer_switch, GST_TYPE_MIXER_TRACK);
-
-static void
-gst_oss4_mixer_switch_class_init (GstOss4MixerSwitchClass * klass)
-{
-  /* nothing to do here */
-}
-
-static void
-gst_oss4_mixer_switch_init (GstOss4MixerSwitch * s)
-{
-  /* nothing to do here */
-}
-
-gboolean
-gst_oss4_mixer_switch_set (GstOss4MixerSwitch * s, gboolean disabled)
-{
-  GstMixerTrack *track;
-  int newval;
-
-  track = GST_MIXER_TRACK (s);
-
-  newval = disabled ? GST_MIXER_TRACK_MUTE : 0;
-
-  if (newval == (track->flags & GST_MIXER_TRACK_MUTE)) {
-    GST_LOG_OBJECT (s, "switch is already %d, doing nothing", newval);
-    return TRUE;
-  }
-
-  if (!gst_oss4_mixer_set_control_val (s->mixer, s->mc, !disabled)) {
-    GST_WARNING_OBJECT (s, "could not set switch to %d", !disabled);
-    return FALSE;
-  }
-
-  if (disabled) {
-    track->flags |= GST_MIXER_TRACK_MUTE;
-  } else {
-    track->flags &= ~GST_MIXER_TRACK_MUTE;
-  }
-
-  GST_LOG_OBJECT (s, "set switch to %d", newval);
-
-  return TRUE;
-}
-
-gboolean
-gst_oss4_mixer_switch_get (GstOss4MixerSwitch * s, gboolean * disabled)
-{
-  GstMixerTrack *track;
-  int flag;
-  int enabled = -1;
-
-  track = GST_MIXER_TRACK (s);
-
-  if (!gst_oss4_mixer_get_control_val (s->mixer, s->mc, &enabled)
-      || (enabled < 0)) {
-    GST_WARNING_OBJECT (s, "could not get switch state");
-    return FALSE;
-  }
-
-  flag = (enabled == 0) ? GST_MIXER_TRACK_MUTE : 0;
-
-  if (enabled) {
-    track->flags &= ~GST_MIXER_TRACK_MUTE;
-  } else {
-    track->flags |= GST_MIXER_TRACK_MUTE;
-  }
-  *disabled = (enabled == 0);
-
-  return TRUE;
-}
-
-GstMixerTrack *
-gst_oss4_mixer_switch_new (GstOss4Mixer * mixer, GstOss4MixerControl * mc)
-{
-  GstOss4MixerSwitch *s;
-  GstMixerTrack *track;
-  int cur = -1;
-
-  s = g_object_new (GST_TYPE_OSS4_MIXER_SWITCH, "untranslated-label",
-      mc->mixext.extname, NULL);
-
-  s->mixer = mixer;
-  s->mc = mc;
-
-  track = GST_MIXER_TRACK (s);
-
-  /* caller will set track->label and track->flags */
-
-  track->num_channels = 0;
-  track->min_volume = 0;
-  track->max_volume = 0;
-
-  if (!gst_oss4_mixer_get_control_val (s->mixer, s->mc, &cur) || cur < 0)
-    return NULL;
-
-  if (cur) {
-    track->flags &= ~GST_MIXER_TRACK_MUTE;
-  } else {
-    track->flags |= GST_MIXER_TRACK_MUTE;
-  }
-
-  return track;
-}
-
-/* This is called from the watch thread */
-void
-gst_oss4_mixer_switch_process_change_unlocked (GstMixerTrack * track)
-{
-  GstOss4MixerSwitch *s = GST_OSS4_MIXER_SWITCH_CAST (track);
-
-  if (!s->mc->changed)
-    return;
-
-  gst_mixer_mute_toggled (GST_MIXER (s->mixer), track, !s->mc->last_val);
-}
diff --git a/sys/oss4/oss4-mixer-switch.h b/sys/oss4/oss4-mixer-switch.h
deleted file mode 100644
index a8ab83ffa..000000000
--- a/sys/oss4/oss4-mixer-switch.h
+++ /dev/null
@@ -1,65 +0,0 @@
-/* GStreamer OSS4 mixer on/off switch control
- * Copyright (C) 2007-2008 Tim-Philipp Müller <tim centricular net>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef GST_OSS4_MIXER_SWITCH_H
-#define GST_OSS4_MIXER_SWITCH_H
-
-#include <gst/gst.h>
-#include <gst/interfaces/mixer.h>
-
-#include "oss4-mixer.h"
-
-G_BEGIN_DECLS
-
-#define GST_TYPE_OSS4_MIXER_SWITCH            (gst_oss4_mixer_switch_get_type())
-#define GST_OSS4_MIXER_SWITCH(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OSS4_MIXER_SWITCH,GstOss4MixerSwitch))
-#define GST_OSS4_MIXER_SWITCH_CAST(obj)       ((GstOss4MixerSwitch *)(obj))
-#define GST_OSS4_MIXER_SWITCH_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OSS4_MIXER_SWITCH,GstOss4MixerSwitchClass))
-#define GST_IS_OSS4_MIXER_SWITCH(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OSS4_MIXER_SWITCH))
-#define GST_IS_OSS4_MIXER_SWITCH_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OSS4_MIXER_SWITCH))
-
-typedef struct _GstOss4MixerSwitch GstOss4MixerSwitch;
-typedef struct _GstOss4MixerSwitchClass GstOss4MixerSwitchClass;
-
-struct _GstOss4MixerSwitch {
-  GstMixerTrack          mixer_track;
-
-  GstOss4MixerControl  * mc;
-  GstOss4Mixer         * mixer;      /* the mixer we belong to (no ref taken) */
-};
-
-struct _GstOss4MixerSwitchClass {
-  GstMixerTrackClass mixer_track_class;
-};
-
-GType            gst_oss4_mixer_switch_get_type (void);
-
-gboolean         gst_oss4_mixer_switch_set (GstOss4MixerSwitch * s, gboolean enabled);
-
-gboolean         gst_oss4_mixer_switch_get (GstOss4MixerSwitch * s, gboolean * enabled);
-
-GstMixerTrack  * gst_oss4_mixer_switch_new (GstOss4Mixer * mixer, GstOss4MixerControl * mc);
-
-void             gst_oss4_mixer_switch_process_change_unlocked (GstMixerTrack * track);
-
-G_END_DECLS
-
-#endif /* GST_OSS4_MIXER_SWITCH_H */
-
-
diff --git a/sys/oss4/oss4-mixer.c b/sys/oss4/oss4-mixer.c
deleted file mode 100644
index f0dab870e..000000000
--- a/sys/oss4/oss4-mixer.c
+++ /dev/null
@@ -1,1850 +0,0 @@
-/* GStreamer OSS4 mixer implementation
- * Copyright (C) 2007-2008 Tim-Philipp Müller <tim centricular net>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with mixer library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-/**
- * SECTION:element-oss4mixer
- *
- * This element lets you adjust sound input and output levels with the
- * Open Sound System (OSS) version 4. It supports the GstMixer interface, which
- * can be used to obtain a list of available mixer tracks. Set the mixer
- * element to READY state before using the GstMixer interface on it.
- * 
- * <refsect2>
- * <title>Example pipelines</title>
- * <para>
- * oss4mixer can&apos;t be used in a sensible way in gst-launch.
- * </para>
- * </refsect2>
- *
- * Since: 0.10.7
- */
-
-/* Note: ioctl calls on the same open mixer device are serialised via
- * the object lock to make sure we don't do concurrent ioctls from two
- * different threads (e.g. app thread and mixer watch thread), since that
- * will probably confuse OSS. */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <string.h>
-#include <errno.h>
-#include <sys/ioctl.h>
-
-#include <gst/interfaces/mixer.h>
-#include <gst/gst-i18n-plugin.h>
-
-#include <glib/gprintf.h>
-
-#define NO_LEGACY_MIXER
-
-#include "oss4-audio.h"
-#include "oss4-mixer.h"
-#include "oss4-mixer-enum.h"
-#include "oss4-mixer-slider.h"
-#include "oss4-mixer-switch.h"
-#include "oss4-property-probe.h"
-#include "oss4-soundcard.h"
-
-#define GST_OSS4_MIXER_WATCH_INTERVAL   500     /* in millisecs, ie. 0.5s */
-
-GST_DEBUG_CATEGORY_EXTERN (oss4mixer_debug);
-#define GST_CAT_DEFAULT oss4mixer_debug
-
-#define DEFAULT_DEVICE       NULL
-#define DEFAULT_DEVICE_NAME  NULL
-
-enum
-{
-  PROP_0,
-  PROP_DEVICE,
-  PROP_DEVICE_NAME
-};
-
-static void gst_oss4_mixer_init_interfaces (GType type);
-
-GST_BOILERPLATE_FULL (GstOss4Mixer, gst_oss4_mixer, GstElement,
-    GST_TYPE_ELEMENT, gst_oss4_mixer_init_interfaces);
-
-static GstStateChangeReturn gst_oss4_mixer_change_state (GstElement *
-    element, GstStateChange transition);
-
-static void gst_oss4_mixer_set_property (GObject * object, guint prop_id,
-    const GValue * value, GParamSpec * pspec);
-static void gst_oss4_mixer_get_property (GObject * object, guint prop_id,
-    GValue * value, GParamSpec * pspec);
-static void gst_oss4_mixer_finalize (GObject * object);
-
-static gboolean gst_oss4_mixer_open (GstOss4Mixer * mixer,
-    gboolean silent_errors);
-static void gst_oss4_mixer_close (GstOss4Mixer * mixer);
-
-static gboolean gst_oss4_mixer_enum_control_update_enum_list (GstOss4Mixer * m,
-    GstOss4MixerControl * mc);
-
-#ifndef GST_DISABLE_GST_DEBUG
-static const gchar *mixer_ext_type_get_name (gint type);
-static const gchar *mixer_ext_flags_get_string (gint flags);
-#endif
-
-static void
-gst_oss4_mixer_base_init (gpointer klass)
-{
-  gst_element_class_set_details_simple (GST_ELEMENT_CLASS (klass),
-      "OSS v4 Audio Mixer", "Generic/Audio",
-      "Control sound input and output levels with OSS4",
-      "Tim-Philipp Müller <tim centricular net>");
-}
-
-static void
-gst_oss4_mixer_class_init (GstOss4MixerClass * klass)
-{
-  GstElementClass *element_class;
-  GObjectClass *gobject_class;
-
-  element_class = (GstElementClass *) klass;
-  gobject_class = (GObjectClass *) klass;
-
-  gobject_class->finalize = gst_oss4_mixer_finalize;
-  gobject_class->set_property = gst_oss4_mixer_set_property;
-  gobject_class->get_property = gst_oss4_mixer_get_property;
-
-  /**
-   * GstOss4Mixer:device
-   *
-   * OSS4 mixer device (e.g. /dev/oss/hdaudio0/mix0 or /dev/mixerN)
-   *
-   **/
-  g_object_class_install_property (gobject_class, PROP_DEVICE,
-      g_param_spec_string ("device", "Device",
-          "OSS mixer device (e.g. /dev/oss/hdaudio0/mix0 or /dev/mixerN) "
-          "(NULL = use first mixer device found)", DEFAULT_DEVICE,
-          G_PARAM_READWRITE));
-
-  /**
-   * GstOss4Mixer:device-name
-   *
-   * Human-readable name of the sound device. May be NULL if the device is
-   * not open (ie. when the mixer is in NULL state)
-   *
-   **/
-  g_object_class_install_property (gobject_class, PROP_DEVICE_NAME,
-      g_param_spec_string ("device-name", "Device name",
-          "Human-readable name of the sound device", DEFAULT_DEVICE_NAME,
-          G_PARAM_READABLE));
-
-  element_class->change_state = GST_DEBUG_FUNCPTR (gst_oss4_mixer_change_state);
-}
-
-static void
-gst_oss4_mixer_finalize (GObject * obj)
-{
-  GstOss4Mixer *mixer = GST_OSS4_MIXER (obj);
-
-  g_free (mixer->device);
-
-  G_OBJECT_CLASS (parent_class)->finalize (obj);
-}
-
-static void
-gst_oss4_mixer_reset (GstOss4Mixer * mixer)
-{
-  mixer->fd = -1;
-  mixer->need_update = TRUE;
-  memset (&mixer->last_mixext, 0, sizeof (oss_mixext));
-}
-
-static void
-gst_oss4_mixer_init (GstOss4Mixer * mixer, GstOss4MixerClass * g_class)
-{
-  mixer->device = g_strdup (DEFAULT_DEVICE);
-  mixer->device_name = NULL;
-
-  gst_oss4_mixer_reset (mixer);
-}
-
-static void
-gst_oss4_mixer_set_property (GObject * object, guint prop_id,
-    const GValue * value, GParamSpec * pspec)
-{
-  GstOss4Mixer *mixer = GST_OSS4_MIXER (object);
-
-  switch (prop_id) {
-    case PROP_DEVICE:
-      GST_OBJECT_LOCK (mixer);
-      if (!GST_OSS4_MIXER_IS_OPEN (mixer)) {
-        g_free (mixer->device);
-        mixer->device = g_value_dup_string (value);
-        /* unset any cached device-name */
-        g_free (mixer->device_name);
-        mixer->device_name = NULL;
-      } else {
-        g_warning ("%s: can't change \"device\" property while mixer is open",
-            GST_OBJECT_NAME (mixer));
-      }
-      GST_OBJECT_UNLOCK (mixer);
-      break;
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-  }
-}
-
-static void
-gst_oss4_mixer_get_property (GObject * object, guint prop_id,
-    GValue * value, GParamSpec * pspec)
-{
-  GstOss4Mixer *mixer = GST_OSS4_MIXER (object);
-
-  switch (prop_id) {
-    case PROP_DEVICE:
-      GST_OBJECT_LOCK (mixer);
-      g_value_set_string (value, mixer->device);
-      GST_OBJECT_UNLOCK (mixer);
-      break;
-    case PROP_DEVICE_NAME:
-      GST_OBJECT_LOCK (mixer);
-      /* If device is set, try to retrieve the name even if we're not open */
-      if (mixer->fd == -1 && mixer->device != NULL) {
-        if (gst_oss4_mixer_open (mixer, TRUE)) {
-          g_value_set_string (value, mixer->device_name);
-          gst_oss4_mixer_close (mixer);
-        } else {
-          g_value_set_string (value, mixer->device_name);
-        }
-      } else {
-        g_value_set_string (value, mixer->device_name);
-      }
-      GST_OBJECT_UNLOCK (mixer);
-      break;
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-  }
-}
-
-static gboolean
-gst_oss4_mixer_open (GstOss4Mixer * mixer, gboolean silent_errors)
-{
-  struct oss_mixerinfo mi = { 0, };
-  gchar *device;
-
-  g_return_val_if_fail (!GST_OSS4_MIXER_IS_OPEN (mixer), FALSE);
-
-  if (mixer->device)
-    device = g_strdup (mixer->device);
-  else
-    device = gst_oss4_audio_find_device (GST_OBJECT_CAST (mixer));
-
-  /* desperate times, desperate measures */
-  if (device == NULL)
-    device = g_strdup ("/dev/mixer");
-
-  GST_INFO_OBJECT (mixer, "Trying to open OSS4 mixer device '%s'", device);
-
-  mixer->fd = open (device, O_RDWR, 0);
-  if (mixer->fd < 0)
-    goto open_failed;
-
-  /* Make sure it's OSS4. If it's old OSS, let the old ossmixer handle it */
-  if (!gst_oss4_audio_check_version (GST_OBJECT (mixer), mixer->fd))
-    goto legacy_oss;
-
-  GST_INFO_OBJECT (mixer, "Opened mixer device '%s', which is mixer %d",
-      device, mi.dev);
-
-  /* Get device name for currently open fd */
-  mi.dev = -1;
-  if (ioctl (mixer->fd, SNDCTL_MIXERINFO, &mi) == 0) {
-    mixer->modify_counter = mi.modify_counter;
-    if (mi.name[0] != '\0') {
-      mixer->device_name = g_strdup (mi.name);
-    }
-  } else {
-    mixer->modify_counter = 0;
-  }
-
-  if (mixer->device_name == NULL) {
-    mixer->device_name = g_strdup ("Unknown");
-  }
-  GST_INFO_OBJECT (mixer, "device name = '%s'", mixer->device_name);
-
-  mixer->open_device = device;
-
-  return TRUE;
-
-  /* ERRORS */
-open_failed:
-  {
-    if (!silent_errors) {
-      GST_ELEMENT_ERROR (mixer, RESOURCE, OPEN_READ_WRITE,
-          (_("Could not open audio device for mixer control handling.")),
-          GST_ERROR_SYSTEM);
-    } else {
-      GST_DEBUG_OBJECT (mixer, "open failed: %s (ignoring errors)",
-          g_strerror (errno));
-    }
-    g_free (device);
-    return FALSE;
-  }
-legacy_oss:
-  {
-    gst_oss4_mixer_close (mixer);
-    if (!silent_errors) {
-      GST_ELEMENT_ERROR (mixer, RESOURCE, OPEN_READ_WRITE,
-          (_("Could not open audio device for mixer control handling. "
-                  "This version of the Open Sound System is not supported by this "
-                  "element.")), ("Try the 'ossmixer' element instead"));
-    } else {
-      GST_DEBUG_OBJECT (mixer, "open failed: legacy oss (ignoring errors)");
-    }
-    g_free (device);
-    return FALSE;
-  }
-}
-
-static void
-gst_oss4_mixer_control_free (GstOss4MixerControl * mc)
-{
-  g_list_free (mc->children);
-  g_list_free (mc->mute_group);
-  g_free (mc->enum_vals);
-  memset (mc, 0, sizeof (GstOss4MixerControl));
-  g_free (mc);
-}
-
-static void
-gst_oss4_mixer_free_tracks (GstOss4Mixer * mixer)
-{
-  g_list_foreach (mixer->tracks, (GFunc) g_object_unref, NULL);
-  g_list_free (mixer->tracks);
-  mixer->tracks = NULL;
-
-  g_list_foreach (mixer->controls, (GFunc) gst_oss4_mixer_control_free, NULL);
-  g_list_free (mixer->controls);
-  mixer->controls = NULL;
-}
-
-static void
-gst_oss4_mixer_close (GstOss4Mixer * mixer)
-{
-  g_free (mixer->device_name);
-  mixer->device_name = NULL;
-
-  g_free (mixer->open_device);
-  mixer->open_device = NULL;
-
-  gst_oss4_mixer_free_tracks (mixer);
-
-  if (mixer->fd != -1) {
-    close (mixer->fd);
-    mixer->fd = -1;
-  }
-
-  gst_oss4_mixer_reset (mixer);
-}
-
-static void
-gst_oss4_mixer_watch_process_changes (GstOss4Mixer * mixer)
-{
-  GList *c, *t, *tracks = NULL;
-
-  GST_INFO_OBJECT (mixer, "mixer interface or control changed");
-
-  /* this is all with the mixer object lock held */
-
-  /* we go through the list backwards so we can bail out faster when the entire
-   * interface needs to be rebuilt */
-  for (c = g_list_last (mixer->controls); c != NULL; c = c->prev) {
-    GstOss4MixerControl *mc = c->data;
-    oss_mixer_value ossval = { 0, };
-
-    mc->changed = FALSE;
-    mc->list_changed = FALSE;
-
-    /* not interested in controls we don't expose in the mixer interface */
-    if (!mc->used)
-      continue;
-
-    /* don't try to read a value from controls that don't have one */
-    if (mc->mixext.type == MIXT_DEVROOT || mc->mixext.type == MIXT_GROUP)
-      continue;
-
-    /* is this an enum control whose list may change? */
-    if (mc->mixext.type == MIXT_ENUM && mc->enum_version != 0) {
-      if (gst_oss4_mixer_enum_control_update_enum_list (mixer, mc))
-        mc->list_changed = TRUE;
-    }
-
-    ossval.dev = mc->mixext.dev;
-    ossval.ctrl = mc->mixext.ctrl;
-    ossval.timestamp = mc->mixext.timestamp;
-
-    if (ioctl (mixer->fd, SNDCTL_MIX_READ, &ossval) == -1) {
-      if (errno == EIDRM || errno == EFAULT) {
-        GST_DEBUG ("%s has disappeared", mc->mixext.extname);
-        goto mixer_changed;
-      }
-      GST_WARNING_OBJECT (mixer, "MIX_READ failed: %s", g_strerror (errno));
-      /* just ignore, move on to next one */
-      continue;
-    }
-
-    if (ossval.value == mc->last_val) { /* no change */
-      /* GST_LOG_OBJECT (mixer, "%s hasn't changed", mc->mixext.extname); */
-      continue;
-    }
-
-    mc->last_val = ossval.value;
-    GST_LOG_OBJECT (mixer, "%s changed value to %u 0x%08x",
-        mc->mixext.extname, ossval.value, ossval.value);
-    mc->changed = TRUE;
-  }
-
-  /* copy list and take track refs, so we can safely drop the object lock,
-   * which we need to do to be able to post messages on the bus */
-  tracks = g_list_copy (mixer->tracks);
-  g_list_foreach (tracks, (GFunc) g_object_ref, NULL);
-
-  GST_OBJECT_UNLOCK (mixer);
-
-  /* since we don't know (or want to know exactly) which controls belong to
-   * which track, we just go through the tracks one-by-one now and make them
-   * check themselves if any of their controls have changed and which messages
-   * to post on the bus as a result */
-  for (t = tracks; t != NULL; t = t->next) {
-    GstMixerTrack *track = t->data;
-
-    if (GST_IS_OSS4_MIXER_SLIDER (track)) {
-      gst_oss4_mixer_slider_process_change_unlocked (track);
-    } else if (GST_IS_OSS4_MIXER_SWITCH (track)) {
-      gst_oss4_mixer_switch_process_change_unlocked (track);
-    } else if (GST_IS_OSS4_MIXER_ENUM (track)) {
-      gst_oss4_mixer_enum_process_change_unlocked (track);
-    }
-
-    g_object_unref (track);
-  }
-  g_list_free (tracks);
-
-  GST_OBJECT_LOCK (mixer);
-  return;
-
-mixer_changed:
-  {
-    GST_OBJECT_UNLOCK (mixer);
-    gst_mixer_mixer_changed (GST_MIXER (mixer));
-    GST_OBJECT_LOCK (mixer);
-    return;
-  }
-}
-
-/* This thread watches the mixer for changes in a somewhat inefficient way
- * (running an ioctl every half second or so). This is still better and
- * cheaper than apps polling all tracks for changes a few times a second
- * though. Needs more thought. There's probably (hopefully) a way to get
- * notifications via the fd directly somehow. */
-static gpointer
-gst_oss4_mixer_watch_thread (gpointer thread_data)
-{
-  GstOss4Mixer *mixer = GST_OSS4_MIXER_CAST (thread_data);
-
-  GST_DEBUG_OBJECT (mixer, "watch thread running");
-
-  GST_OBJECT_LOCK (mixer);
-  while (!mixer->watch_shutdown) {
-    oss_mixerinfo mi = { 0, };
-    GTimeVal tv;
-
-    mi.dev = -1;
-    if (ioctl (mixer->fd, SNDCTL_MIXERINFO, &mi) == 0) {
-      if (mixer->modify_counter != mi.modify_counter) {
-        /* GST_LOG ("processing changes"); */
-        gst_oss4_mixer_watch_process_changes (mixer);
-        mixer->modify_counter = mi.modify_counter;
-      } else {
-        /* GST_LOG ("no changes"); */
-      }
-    } else {
-      GST_WARNING_OBJECT (mixer, "MIXERINFO failed: %s", g_strerror (errno));
-    }
-
-    /* we could move the _get_current_time out of the loop and just do the
-     * add in ever iteration, which would be less exact, but who cares */
-    g_get_current_time (&tv);
-    g_time_val_add (&tv, GST_OSS4_MIXER_WATCH_INTERVAL * 1000);
-    (void) g_cond_timed_wait (mixer->watch_cond, GST_OBJECT_GET_LOCK (mixer),
-        &tv);
-  }
-  GST_OBJECT_UNLOCK (mixer);
-
-  GST_DEBUG_OBJECT (mixer, "watch thread done");
-  gst_object_unref (mixer);
-  return NULL;
-}
-
-/* call with object lock held */
-static void
-gst_oss4_mixer_wake_up_watch_task (GstOss4Mixer * mixer)
-{
-  GST_LOG_OBJECT (mixer, "signalling watch thread to wake up");
-  g_cond_signal (mixer->watch_cond);
-}
-
-static void
-gst_oss4_mixer_stop_watch_task (GstOss4Mixer * mixer)
-{
-  if (mixer->watch_thread) {
-    GST_OBJECT_LOCK (mixer);
-    mixer->watch_shutdown = TRUE;
-    GST_LOG_OBJECT (mixer, "signalling watch thread to stop");
-    g_cond_signal (mixer->watch_cond);
-    GST_OBJECT_UNLOCK (mixer);
-    GST_LOG_OBJECT (mixer, "waiting for watch thread to join");
-    g_thread_join (mixer->watch_thread);
-    GST_DEBUG_OBJECT (mixer, "watch thread stopped");
-    mixer->watch_thread = NULL;
-  }
-
-  if (mixer->watch_cond) {
-    g_cond_free (mixer->watch_cond);
-    mixer->watch_cond = NULL;
-  }
-}
-
-static void
-gst_oss4_mixer_start_watch_task (GstOss4Mixer * mixer)
-{
-  GError *err = NULL;
-
-  mixer->watch_cond = g_cond_new ();
-  mixer->watch_shutdown = FALSE;
-
-  mixer->watch_thread = g_thread_create (gst_oss4_mixer_watch_thread,
-      gst_object_ref (mixer), TRUE, &err);
-
-  if (mixer->watch_thread == NULL) {
-    GST_ERROR_OBJECT (mixer, "Could not create watch thread: %s", err->message);
-    g_cond_free (mixer->watch_cond);
-    mixer->watch_cond = NULL;
-    g_error_free (err);
-  }
-}
-
-static GstStateChangeReturn
-gst_oss4_mixer_change_state (GstElement * element, GstStateChange transition)
-{
-  GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
-  GstOss4Mixer *mixer = GST_OSS4_MIXER (element);
-
-  switch (transition) {
-    case GST_STATE_CHANGE_NULL_TO_READY:
-      if (!gst_oss4_mixer_open (mixer, FALSE))
-        return GST_STATE_CHANGE_FAILURE;
-      gst_oss4_mixer_start_watch_task (mixer);
-      break;
-    default:
-      break;
-  }
-
-  ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
-  if (ret == GST_STATE_CHANGE_FAILURE)
-    return ret;
-
-  switch (transition) {
-    case GST_STATE_CHANGE_READY_TO_NULL:
-      gst_oss4_mixer_stop_watch_task (mixer);
-      gst_oss4_mixer_close (mixer);
-      break;
-    default:
-      break;
-  }
-
-  return ret;
-}
-
-/* === GstMixer interface === */
-
-static inline gboolean
-gst_oss4_mixer_contains_track (GstMixer * mixer, GstMixerTrack * track)
-{
-  return (g_list_find (GST_OSS4_MIXER (mixer)->tracks, track) != NULL);
-}
-
-static inline gboolean
-gst_oss4_mixer_contains_options (GstMixer * mixer, GstMixerOptions * options)
-{
-  return (g_list_find (GST_OSS4_MIXER (mixer)->tracks, options) != NULL);
-}
-
-static void
-gst_oss4_mixer_post_mixer_changed_msg (GstOss4Mixer * mixer)
-{
-  /* only post mixer-changed message once */
-  if (!mixer->need_update) {
-    gst_mixer_mixer_changed (GST_MIXER (mixer));
-    mixer->need_update = TRUE;
-  }
-}
-
-/* call with mixer object lock held to serialise ioctl */
-gboolean
-gst_oss4_mixer_get_control_val (GstOss4Mixer * mixer, GstOss4MixerControl * mc,
-    int *val)
-{
-  oss_mixer_value ossval = { 0, };
-
-  if (GST_OBJECT_TRYLOCK (mixer)) {
-    GST_ERROR ("must be called with mixer lock held");
-    GST_OBJECT_UNLOCK (mixer);
-  }
-
-  ossval.dev = mc->mixext.dev;
-  ossval.ctrl = mc->mixext.ctrl;
-  ossval.timestamp = mc->mixext.timestamp;
-
-  if (ioctl (mixer->fd, SNDCTL_MIX_READ, &ossval) == -1) {
-    if (errno == EIDRM) {
-      GST_DEBUG_OBJECT (mixer, "MIX_READ failed: mixer interface has changed");
-      gst_oss4_mixer_post_mixer_changed_msg (mixer);
-    } else {
-      GST_WARNING_OBJECT (mixer, "MIX_READ failed: %s", g_strerror (errno));
-    }
-    *val = 0;
-    mc->last_val = 0;
-    return FALSE;
-  }
-
-  *val = ossval.value;
-  mc->last_val = ossval.value;
-  GST_LOG_OBJECT (mixer, "got value 0x%08x from %s)", *val, mc->mixext.extname);
-  return TRUE;
-}
-
-/* call with mixer object lock held to serialise ioctl */
-gboolean
-gst_oss4_mixer_set_control_val (GstOss4Mixer * mixer, GstOss4MixerControl * mc,
-    int val)
-{
-  oss_mixer_value ossval = { 0, };
-
-  ossval.dev = mc->mixext.dev;
-  ossval.ctrl = mc->mixext.ctrl;
-  ossval.timestamp = mc->mixext.timestamp;
-  ossval.value = val;
-
-  if (GST_OBJECT_TRYLOCK (mixer)) {
-    GST_ERROR ("must be called with mixer lock held");
-    GST_OBJECT_UNLOCK (mixer);
-  }
-
-  if (ioctl (mixer->fd, SNDCTL_MIX_WRITE, &ossval) == -1) {
-    if (errno == EIDRM) {
-      GST_LOG_OBJECT (mixer, "MIX_WRITE failed: mixer interface has changed");
-      gst_oss4_mixer_post_mixer_changed_msg (mixer);
-    } else {
-      GST_WARNING_OBJECT (mixer, "MIX_WRITE failed: %s", g_strerror (errno));
-    }
-    return FALSE;
-  }
-
-  mc->last_val = val;
-  GST_LOG_OBJECT (mixer, "set value 0x%08x on %s", val, mc->mixext.extname);
-  return TRUE;
-}
-
-#if 0
-static gchar *
-gst_oss4_mixer_control_get_pretty_name (GstOss4MixerControl * mc)
-{
-  gchar *name;
-
-  const gchar *name, *u;
-
-  /* "The id field is the original name given by the driver when it called
-   * mixer_ext_create_control. This name can be used by fully featured GUI
-   * mixers. However this name should be downshifted and cut before the last
-   * underscore ("_") to get the proper name. For example mixer control name
-   * created as "MYDRV_MAINVOL" will become just "mainvol" after this
-   * transformation." */
-  name = mc->mixext.extname;
-  u = MAX (strrchr (name, '_'), strrchr (name, '.'));
-  if (u != NULL)
-    name = u + 1;
-
-  /* maybe capitalize the first letter? */
-  return g_ascii_strdown (name, -1);
-  /* the .id thing doesn't really seem to work right, ie. for some sliders
-   * it's just '-' so you have to use the name of the parent control etc.
-   * let's not use it for now, much too painful. */
-  if (g_str_has_prefix (mc->mixext.extname, "misc."))
-    name = g_strdup (mc->mixext.extname + 5);
-  else
-    name = g_strdup (mc->mixext.extname);
-  /* chop off trailing digit (only one for now) */
-  if (strlen (name) > 0 && g_ascii_isdigit (name[strlen (name) - 1]))
-    name[strlen (name) - 1] = '\0';
-  g_strdelimit (name, ".", ' ');
-  return name;
-}
-#endif
-
-/* these translations are a bit ad-hoc and horribly incomplete; it is not
- * really going to work this way with all the different chipsets and drivers.
- * We also use these for translating option values. */
-static struct
-{
-  const gchar oss_name[32];
-  const gchar *label;
-} labels[] = {
-  {
-  "volume", N_("Volume")}, {
-  "master", N_("Master")}, {
-  "front", N_("Front")}, {
-  "rear", N_("Rear")}, {
-  "headphones", N_("Headphones")}, {
-  "center", N_("Center")}, {
-  "lfe", N_("LFE")}, {
-  "surround", N_("Surround")}, {
-  "side", N_("Side")}, {
-  "speaker", N_("Built-in Speaker")}, {
-  "aux1-out", N_("AUX 1 Out")}, {
-  "aux2-out", N_("AUX 2 Out")}, {
-  "aux-out", N_("AUX Out")}, {
-  "bass", N_("Bass")}, {
-  "treble", N_("Treble")}, {
-  "3d-depth", N_("3D Depth")}, {
-  "3d-center", N_("3D Center")}, {
-  "3d-enhance", N_("3D Enhance")}, {
-  "phone", N_("Telephone")}, {
-  "mic", N_("Microphone")}, {
-  "line-out", N_("Line Out")}, {
-  "line-in", N_("Line In")}, {
-  "linein", N_("Line In")}, {
-  "cd", N_("Internal CD")}, {
-  "video", N_("Video In")}, {
-  "aux1-in", N_("AUX 1 In")}, {
-  "aux2-in", N_("AUX 2 In")}, {
-  "aux-in", N_("AUX In")}, {
-  "pcm", N_("PCM")}, {
-  "record-gain", N_("Record Gain")}, {
-  "igain", N_("Record Gain")}, {
-  "ogain", N_("Output Gain")}, {
-  "micboost", N_("Microphone Boost")}, {
-  "loopback", N_("Loopback")}, {
-  "diag", N_("Diagnostic")}, {
-  "loudness", N_("Bass Boost")}, {
-  "outputs", N_("Playback Ports")}, {
-  "input", N_("Input")}, {
-  "inputs", N_("Record Source")}, {
-  "record-source", N_("Record Source")}, {
-  "monitor-source", N_("Monitor Source")}, {
-  "beep", N_("Keyboard Beep")}, {
-  "monitor-gain", N_("Monitor")}, {
-  "stereo-simulate", N_("Simulate Stereo")}, {
-  "stereo", N_("Stereo")}, {
-  "multich", N_("Surround Sound")}, {
-  "mic-gain", N_("Microphone Gain")}, {
-  "speaker-source", N_("Speaker Source")}, {
-  "mic-source", N_("Microphone Source")}, {
-  "jack", N_("Jack")}, {
-  "center/lfe", N_("Center / LFE")}, {
-  "stereo-mix", N_("Stereo Mix")}, {
-  "mono-mix", N_("Mono Mix")}, {
-  "input-mix", N_("Input Mix")}, {
-  "spdif-in", N_("SPDIF In")}, {
-  "spdif-out", N_("SPDIF Out")}, {
-  "mic1", N_("Microphone 1")}, {
-  "mic2", N_("Microphone 2")}, {
-  "digital-out", N_("Digital Out")}, {
-  "digital-in", N_("Digital In")}, {
-  "hdmi", N_("HDMI")}, {
-  "modem", N_("Modem")}, {
-  "handset", N_("Handset")}, {
-  "other", N_("Other")}, {
-  "stereo", N_("Stereo")}, {
-  "none", N_("None")}, {
-  "on", N_("On")}, {
-  "off", N_("Off")}, {
-  "mute", N_("Mute")}, {
-  "fast", N_("Fast")}, {
-  "very-low", N_("Very Low")}, {
-  "low", N_("Low")}, {
-  "medium", N_("Medium")}, {
-  "high", N_("High")}, {
-  "very-high", N_("Very High")}, {
-  "high+", N_("Very High")}, {
-  "production", N_("Production")}, {
-  "fp-mic", N_("Front Panel Microphone")}, {
-  "fp-linein", N_("Front Panel Line In")}, {
-  "fp-headphones", N_("Front Panel Headphones")}, {
-  "fp-lineout", N_("Front Panel Line Out")}, {
-  "green", N_("Green Connector")}, {
-  "pink", N_("Pink Connector")}, {
-  "blue", N_("Blue Connector")}, {
-  "white", N_("White Connector")}, {
-  "black", N_("Black Connector")}, {
-  "gray", N_("Gray Connector")}, {
-  "orange", N_("Orange Connector")}, {
-  "red", N_("Red Connector")}, {
-  "yellow", N_("Yellow Connector")}, {
-  "fp-green", N_("Green Front Panel Connector")}, {
-  "fp-pink", N_("Pink Front Panel Connector")}, {
-  "fp-blue", N_("Blue Front Panel Connector")}, {
-  "fp-white", N_("White Front Panel Connector")}, {
-  "fp-black", N_("Black Front Panel Connector")}, {
-  "fp-gray", N_("Gray Front Panel Connector")}, {
-  "fp-orange", N_("Orange Front Panel Connector")}, {
-  "fp-red", N_("Red Front Panel Connector")}, {
-  "fp-yellow", N_("Yellow Front Panel Connector")}, {
-  "spread", N_("Spread Output")}, {
-  "downmix", N_("Downmix")},
-      /* FIXME translate Audigy NX USB labels) */
-/*
-  { "rec.src", N_("Record Source") },
-  { "output.mute", N_("Mute output") }
- headph (Controller group)
-   headph.src (Enumeration control)
-   headph.mute (On/Off switch)
- digital2 (Controller group)
-   digital2.src (Enumeration control)
-   digital2.mute (On/Off switch)
- digital (Controller group)
-   digital.mute1 (On/Off switch)
-   digital.vol (Controller group)
-     digital.vol.front (Stereo slider (0-255))
-     digital.vol.surr (Stereo slider (0-255))
-     digital.vol.c/l (Stereo slider (0-255))
-     digital.vol.center (Stereo slider (0-255))
-   digital.mute2 (On/Off switch)
-   digital.vol (Stereo slider (0-255))
- line (Controller group)
-   line.mute (On/Off switch)
-   line.vol (Stereo slider (0-255))
- play-altset (Enumeration control)
- rec-altset (Enumeration control)
-*/
-};
-
-/* Decent i18n is pretty much impossible with OSS's way of providing us with
- * mixer labels (and the fact that they are pretty much random), but that
- * doesn't mean we shouldn't at least try. */
-static gchar *
-gst_oss4_mixer_control_get_translated_name (GstOss4MixerControl * mc)
-{
-  gchar name[128] = { 0, };
-  gchar vmix_str[32] = { '\0', };
-  gchar *ptr;
-  int dummy, i;
-  int num = -1;
-  gboolean function_suffix = FALSE;
-
-  /* main virtual mixer controls (we hide the stream volumes) */
-  if (sscanf (mc->mixext.extname, "vmix%d-%32c", &dummy, vmix_str) == 2) {
-    if (strcmp (vmix_str, "src") == 0)
-      return g_strdup (_("Virtual Mixer Input"));
-    else if (strcmp (vmix_str, "vol") == 0)
-      return g_strdup (_("Virtual Mixer Output"));
-    else if (strcmp (vmix_str, "channels") == 0)
-      return g_strdup (_("Virtual Mixer Channels"));
-  }
-
-  g_strlcpy (name, mc->mixext.extname, sizeof (name));
-
-  /* we deal with either "connector." or "jack." */
-  if ((g_str_has_prefix (name, "connector.")) ||
-      (g_str_has_prefix (name, "jack."))) {
-    ptr = strchr (mc->mixext.extname, '.');
-    ptr++;
-    g_strlcpy (name, ptr, sizeof (name));
-  }
-
-  /* special handling for jack retasking suffixes */
-  if (g_str_has_suffix (name, ".function") || g_str_has_suffix (name, ".mode")) {
-    function_suffix = TRUE;
-    ptr = strrchr (name, '.');
-    *ptr = 0;
-  }
-
-  /* parse off trailing numbers */
-  i = strlen (name);
-  while ((i > 0) && (g_ascii_isdigit (name[i - 1]))) {
-    i--;
-  }
-  /* the check catches the case where the control name is just a number */
-  if ((i > 0) && (name[i] != '\0')) {
-    num = atoi (name + i);
-    name[i] = '\0';
-  }
-
-  /* look for a match, progressively skipping '.' delimited prefixes as we go */
-  ptr = name;
-  do {
-    if (*ptr == '.')
-      ptr++;
-    for (i = 0; i < G_N_ELEMENTS (labels); ++i) {
-      if (g_strcasecmp (ptr, labels[i].oss_name) == 0) {
-        g_strlcpy (name, _(labels[i].label), sizeof (name));
-        goto append_suffixes;
-      }
-    }
-  } while ((ptr = strchr (ptr, '.')) != NULL);
-
-  /* failing that, just replace periods with spaces */
-  g_strdelimit (name, ".", ' ');
-
-append_suffixes:
-  if (num > -1) {
-    if (function_suffix) {
-      /* TRANSLATORS: name + number of a volume mixer control */
-      return g_strdup_printf (_("%s %d Function"), name, num);
-    } else {
-      return g_strdup_printf ("%s %d", name, num);
-    }
-  } else {
-    if (function_suffix) {
-      /* TRANSLATORS: name of a volume mixer control */
-      return g_strdup_printf (_("%s Function"), name);
-    } else {
-      return g_strdup (name);
-    }
-  }
-}
-
-static const gchar *
-gst_oss4_mixer_control_get_translated_option (const gchar * name)
-{
-  int i;
-  for (i = 0; i < G_N_ELEMENTS (labels); ++i) {
-    if (g_strcasecmp (name, labels[i].oss_name) == 0) {
-      return _(labels[i].label);
-    }
-  }
-  return (name);
-}
-
-#ifndef GST_DISABLE_GST_DEBUG
-static const gchar *
-mixer_ext_type_get_name (gint type)
-{
-  switch (type) {
-    case MIXT_DEVROOT:
-      return "Device root entry";
-    case MIXT_GROUP:
-      return "Controller group";
-    case MIXT_ONOFF:
-      return "On/Off switch";
-    case MIXT_ENUM:
-      return "Enumeration control";
-    case MIXT_MONOSLIDER:
-      return "Mono slider (0-255)";
-    case MIXT_STEREOSLIDER:
-      return "Stereo slider (0-255)";
-    case MIXT_MESSAGE:
-      return "Textual message"; /* whatever this is */
-    case MIXT_MONOVU:
-      return "Mono VU meter value";
-    case MIXT_STEREOVU:
-      return "Stereo VU meter value";
-    case MIXT_MONOPEAK:
-      return "Mono VU meter peak value";
-    case MIXT_STEREOPEAK:
-      return "Stereo VU meter peak value";
-    case MIXT_RADIOGROUP:
-      return "Radio button group";
-    case MIXT_MARKER:          /* Separator between normal and extension entries */
-      return "Separator";
-    case MIXT_VALUE:
-      return "Decimal value entry";
-    case MIXT_HEXVALUE:
-      return "Hex value entry";
-    case MIXT_SLIDER:
-      return "Mono slider (31-bit value range)";
-    case MIXT_3D:
-      return "3D";              /* what's this? */
-    case MIXT_MONOSLIDER16:
-      return "Mono slider (0-32767)";
-    case MIXT_STEREOSLIDER16:
-      return "Stereo slider (0-32767)";
-    case MIXT_MUTE:
-      return "Mute switch";
-    default:
-      break;
-  }
-  return "unknown";
-}
-#endif /* GST_DISABLE_GST_DEBUG */
-
-#ifndef GST_DISABLE_GST_DEBUG
-static const gchar *
-mixer_ext_flags_get_string (gint flags)
-{
-  struct
-  {
-    gint flag;
-    gchar nick[16];
-  } all_flags[] = {
-    /* first the important ones */
-    {
-    MIXF_MAINVOL, "MAINVOL"}, {
-    MIXF_PCMVOL, "PCMVOL"}, {
-    MIXF_RECVOL, "RECVOL"}, {
-    MIXF_MONVOL, "MONVOL"}, {
-    MIXF_DESCR, "DESCR"},
-        /* now the rest in the right order */
-    {
-    MIXF_READABLE, "READABLE"}, {
-    MIXF_WRITEABLE, "WRITABLE"}, {
-    MIXF_POLL, "POLL"}, {
-    MIXF_HZ, "HZ"}, {
-    MIXF_STRING, "STRING"}, {
-    MIXF_DYNAMIC, "DYNAMIC"}, {
-    MIXF_OKFAIL, "OKFAIL"}, {
-    MIXF_FLAT, "FLAT"}, {
-    MIXF_LEGACY, "LEGACY"}, {
-    MIXF_CENTIBEL, "CENTIBEL"}, {
-    MIXF_DECIBEL, "DECIBEL"}, {
-    MIXF_WIDE, "WIDE"}
-  };
-  GString *s;
-  GQuark q;
-  gint i;
-
-  if (flags == 0)
-    return "None";
-
-  s = g_string_new ("");
-  for (i = 0; i < G_N_ELEMENTS (all_flags); ++i) {
-    if ((flags & all_flags[i].flag)) {
-      if (s->len > 0)
-        g_string_append (s, " | ");
-      g_string_append (s, all_flags[i].nick);
-      flags &= ~all_flags[i].flag;      /* unset */
-    }
-  }
-
-  /* unknown flags? */
-  if (flags != 0) {
-    if (s->len > 0)
-      g_string_append (s, " | ");
-    g_string_append (s, "???");
-  }
-
-  /* we'll just put it into the global quark table (cheeky, eh?) */
-  q = g_quark_from_string (s->str);
-  g_string_free (s, TRUE);
-
-  return g_quark_to_string (q);
-}
-#endif /* GST_DISABLE_GST_DEBUG */
-
-#ifndef GST_DISABLE_GST_DEBUG
-static void
-gst_oss4_mixer_control_dump_tree (GstOss4MixerControl * mc, gint depth)
-{
-  GList *c;
-  gchar spaces[64];
-  gint i;
-
-  depth = MIN (sizeof (spaces) - 1, depth);
-  for (i = 0; i < depth; ++i)
-    spaces[i] = ' ';
-  spaces[i] = '\0';
-
-  GST_LOG ("%s%s (%s)", spaces, mc->mixext.extname,
-      mixer_ext_type_get_name (mc->mixext.type));
-  for (c = mc->children; c != NULL; c = c->next) {
-    GstOss4MixerControl *child_mc = (GstOss4MixerControl *) c->data;
-
-    gst_oss4_mixer_control_dump_tree (child_mc, depth + 2);
-  }
-}
-#endif /* GST_DISABLE_GST_DEBUG */
-
-static GList *
-gst_oss4_mixer_get_controls (GstOss4Mixer * mixer)
-{
-  GstOss4MixerControl *root_mc = NULL;
-  oss_mixerinfo mi = { 0, };
-  GList *controls = NULL;
-  GList *l;
-  guint i;
-
-  /* Get info for currently open fd */
-  mi.dev = -1;
-  if (ioctl (mixer->fd, SNDCTL_MIXERINFO, &mi) == -1)
-    goto no_mixerinfo;
-
-  if (mi.nrext <= 0) {
-    GST_DEBUG ("mixer %s has no controls", mi.id);
-    return NULL;
-  }
-
-  GST_INFO ("Reading controls for mixer %s", mi.id);
-
-  for (i = 0; i < mi.nrext; ++i) {
-    GstOss4MixerControl *mc;
-    oss_mixext mix_ext = { 0, };
-
-    mix_ext.dev = mi.dev;
-    mix_ext.ctrl = i;
-
-    if (ioctl (mixer->fd, SNDCTL_MIX_EXTINFO, &mix_ext) == -1) {
-      GST_DEBUG ("SNDCTL_MIX_EXTINFO failed on mixer %s, control %d: %s",
-          mi.id, i, g_strerror (errno));
-      continue;
-    }
-
-    /* if this is the last one, save it for is-interface-up-to-date checking */
-    if (i == mi.nrext)
-      mixer->last_mixext = mix_ext;
-
-    mc = g_new0 (GstOss4MixerControl, 1);
-    mc->mixext = mix_ext;
-
-    /* both control_no and desc fields are pretty useless, ie. not always set,
-     * if ever, so not listed here */
-    GST_INFO ("Control %d", mix_ext.ctrl);
-    GST_INFO ("  name   : %s", mix_ext.extname);
-    GST_INFO ("  type   : %s (%d)", mixer_ext_type_get_name (mix_ext.type),
-        mix_ext.type);
-    GST_INFO ("  flags  : %s (0x%04x)",
-        mixer_ext_flags_get_string (mix_ext.flags), mix_ext.flags);
-    GST_INFO ("  parent : %d", mix_ext.parent);
-
-    if (!MIXEXT_IS_ROOT (mix_ext)) {
-      /* find parent (we assume it comes in the list before the child) */
-      for (l = controls; l != NULL; l = l->next) {
-        GstOss4MixerControl *parent_mc = (GstOss4MixerControl *) l->data;
-
-        if (parent_mc->mixext.ctrl == mix_ext.parent) {
-          mc->parent = parent_mc;
-          parent_mc->children = g_list_append (parent_mc->children, mc);
-          break;
-        }
-      }
-      if (mc->parent == NULL) {
-        GST_ERROR_OBJECT (mixer, "couldn't find parent for control %d", i);
-        g_free (mc);
-        continue;
-      }
-    } else if (root_mc == NULL) {
-      root_mc = mc;
-    } else {
-      GST_WARNING_OBJECT (mixer, "two root controls?!");
-    }
-
-    controls = g_list_prepend (controls, mc);
-  }
-
-#ifndef GST_DISABLE_GST_DEBUG
-  gst_oss4_mixer_control_dump_tree (root_mc, 0);
-#endif
-
-  return g_list_reverse (controls);
-
-/* ERRORS */
-no_mixerinfo:
-  {
-    GST_WARNING ("SNDCTL_MIXERINFO failed on mixer device %s: %s", mi.id,
-        g_strerror (errno));
-    return NULL;
-  }
-}
-
-static void
-gst_oss4_mixer_controls_guess_master (GstOss4Mixer * mixer,
-    const GList * controls)
-{
-  GstOss4MixerControl *master_mc = NULL;
-  const GList *l;
-
-  for (l = controls; l != NULL; l = l->next) {
-    GstOss4MixerControl *mc = (GstOss4MixerControl *) l->data;
-
-    /* do we need to check if it's a slider type here? */
-    if ((mc->mixext.flags & MIXF_PCMVOL)) {
-      GST_INFO_OBJECT (mixer, "First PCM control: %s", mc->mixext.extname);
-      master_mc = mc;
-      break;
-    }
-
-    if (((mc->mixext.flags & MIXF_MAINVOL)) && master_mc == NULL) {
-      GST_INFO_OBJECT (mixer, "First main volume control: %s",
-          mc->mixext.extname);
-      master_mc = mc;
-    }
-  }
-
-  if (master_mc != NULL)
-    master_mc->is_master = TRUE;
-}
-
-/* type: -1 for all types, otherwise just return siblings with requested type */
-static GList *
-gst_oss4_mixer_control_get_siblings (GstOss4MixerControl * mc, gint type)
-{
-  GList *s, *siblings = NULL;
-
-  if (mc->parent == NULL)
-    return NULL;
-
-  for (s = mc->parent->children; s != NULL; s = s->next) {
-    GstOss4MixerControl *sibling = (GstOss4MixerControl *) s->data;
-
-    if (mc != sibling && (type < 0 || sibling->mixext.type == type))
-      siblings = g_list_append (siblings, sibling);
-  }
-
-  return siblings;
-}
-
-static void
-gst_oss4_mixer_controls_find_sliders (GstOss4Mixer * mixer,
-    const GList * controls)
-{
-  const GList *l;
-
-  for (l = controls; l != NULL; l = l->next) {
-    GstOss4MixerControl *mc = (GstOss4MixerControl *) l->data;
-    GList *s, *siblings;
-
-    if (!MIXEXT_IS_SLIDER (mc->mixext) || mc->parent == NULL || mc->used)
-      continue;
-
-    mc->is_slider = TRUE;
-    mc->used = TRUE;
-
-    siblings = gst_oss4_mixer_control_get_siblings (mc, -1);
-
-    /* Note: the names can be misleading and may not reflect the actual
-     * hierarchy of the controls, e.g. it's possible that a slider is called
-     * connector.green and the mute control then connector.green.mute, but
-     * both controls are in fact siblings and both children of the group
-     * 'green' instead of mute being a child of connector.green as the naming
-     * would seem to suggest */
-    GST_LOG ("Slider: %s, parent=%s, %d siblings", mc->mixext.extname,
-        mc->parent->mixext.extname, g_list_length (siblings));
-
-    for (s = siblings; s != NULL; s = s->next) {
-      GstOss4MixerControl *sibling = (GstOss4MixerControl *) s->data;
-
-      GST_LOG ("    %s (%s)", sibling->mixext.extname,
-          mixer_ext_type_get_name (sibling->mixext.type));
-
-      if (sibling->mixext.type == MIXT_MUTE ||
-          g_str_has_suffix (sibling->mixext.extname, ".mute")) {
-        /* simple case: slider with single mute sibling. We assume the .mute
-         * suffix in the name won't change - can't really do much else anyway */
-        if (sibling->mixext.type == MIXT_ONOFF ||
-            sibling->mixext.type == MIXT_MUTE) {
-          GST_LOG ("    mute control for %s is %s", mc->mixext.extname,
-              sibling->mixext.extname);
-          mc->mute = sibling;
-          sibling->used = TRUE;
-        }
-        /* a group of .mute controls. We assume they are all switches here */
-        if (sibling->mixext.type == MIXT_GROUP) {
-          GList *m;
-
-          for (m = sibling->children; m != NULL; m = m->next) {
-            GstOss4MixerControl *grouped_sibling = m->data;
-
-            if (grouped_sibling->mixext.type == MIXT_ONOFF ||
-                grouped_sibling->mixext.type == MIXT_MUTE) {
-              GST_LOG ("    %s is grouped mute control for %s",
-                  grouped_sibling->mixext.extname, mc->mixext.extname);
-              mc->mute_group = g_list_append (mc->mute_group, grouped_sibling);
-            }
-          }
-
-          GST_LOG ("    %s has a group of %d mute controls",
-              mc->mixext.extname, g_list_length (mc->mute_group));
-
-          /* we don't mark the individual mute controls as used, only the
-           * group control, as we still want individual switches for the
-           * individual controls */
-          sibling->used = TRUE;
-        }
-      }
-    }
-    g_list_free (siblings);
-  }
-}
-
-/* should be called with the mixer object lock held because of the ioctl;
- * returns TRUE if the list was read the first time or modified */
-static gboolean
-gst_oss4_mixer_enum_control_update_enum_list (GstOss4Mixer * mixer,
-    GstOss4MixerControl * mc)
-{
-  oss_mixer_enuminfo ei = { 0, };
-  guint num_existing = 0;
-  int i;
-
-  /* count and existing values */
-  while (mc->enum_vals != NULL && mc->enum_vals[num_existing] != 0)
-    ++num_existing;
-
-  ei.dev = mc->mixext.dev;
-  ei.ctrl = mc->mixext.ctrl;
-
-  /* if we have create a generic list with numeric IDs already and the
-   * number of values hasn't changed, then there's not much to do here */
-  if (mc->no_list && mc->enum_vals != NULL &&
-      num_existing == mc->mixext.maxvalue) {
-    return FALSE;
-  }
-
-  /* if we have a list and it doesn't change, there's nothing to do either */
-  if (mc->enum_vals != NULL && mc->enum_version == 0)
-    return FALSE;
-
-  if (ioctl (mixer->fd, SNDCTL_MIX_ENUMINFO, &ei) == -1) {
-    g_free (mc->enum_vals);
-    mc->enum_vals = g_new0 (GQuark, mc->mixext.maxvalue + 1);
-
-    GST_DEBUG ("no enum info available, creating numeric values from 0-%d",
-        mc->mixext.maxvalue - 1);
-
-    /* "It is possible that some enum controls don't have any name list
-     * available. In this case the application should automatically generate
-     * list of numbers (0 to N-1)" */
-    for (i = 0; i < mc->mixext.maxvalue; ++i) {
-      gchar num_str[8];
-
-      g_snprintf (num_str, sizeof (num_str), "%d", i);
-      mc->enum_vals[i] = g_quark_from_string (num_str);
-    }
-    mc->enum_version = 0;       /* the only way to change is via maxvalue */
-  } else {
-    /* old list same as current list? */
-    if (mc->enum_vals != NULL && mc->enum_version == ei.version)
-      return FALSE;
-
-    /* no list yet, or the list has changed */
-    GST_LOG ("%s", (mc->enum_vals) ? "enum list has changed" : "reading list");
-    if (ei.nvalues != mc->mixext.maxvalue) {
-      GST_WARNING_OBJECT (mixer, "Enum: %s, nvalues %d != maxvalue %d",
-          mc->mixext.extname, ei.nvalues, mc->mixext.maxvalue);
-      mc->mixext.maxvalue = MIN (ei.nvalues, mc->mixext.maxvalue);
-    }
-
-    mc->mixext.maxvalue = MIN (mc->mixext.maxvalue, OSS_ENUM_MAXVALUE);
-
-    g_free (mc->enum_vals);
-    mc->enum_vals = g_new0 (GQuark, mc->mixext.maxvalue + 1);
-    for (i = 0; i < mc->mixext.maxvalue; ++i) {
-      GST_LOG ("  %s", ei.strings + ei.strindex[i]);
-      mc->enum_vals[i] =
-          g_quark_from_string (gst_oss4_mixer_control_get_translated_option
-          (ei.strings + ei.strindex[i]));
-    }
-  }
-
-  return TRUE;
-}
-
-static void
-gst_oss4_mixer_controls_find_enums (GstOss4Mixer * mixer,
-    const GList * controls)
-{
-  const GList *l;
-
-  for (l = controls; l != NULL; l = l->next) {
-    GstOss4MixerControl *mc = (GstOss4MixerControl *) l->data;
-
-    if (mc->mixext.type != MIXT_ENUM || mc->used)
-      continue;
-
-    mc->is_enum = TRUE;
-    mc->used = TRUE;
-
-    /* Note: enums are special: for most controls, the maxvalue is inclusive,
-     * but for enum controls it's actually exclusive (boggle), so that
-     * mixext.maxvalue = num_values */
-
-    GST_LOG ("Enum: %s, parent=%s, num_enums=%d", mc->mixext.extname,
-        mc->parent->mixext.extname, mc->mixext.maxvalue);
-
-    gst_oss4_mixer_enum_control_update_enum_list (mixer, mc);
-  }
-}
-
-static void
-gst_oss4_mixer_controls_find_switches (GstOss4Mixer * mixer,
-    const GList * controls)
-{
-  const GList *l;
-
-  for (l = controls; l != NULL; l = l->next) {
-    GstOss4MixerControl *mc = (GstOss4MixerControl *) l->data;
-
-    if (mc->used)
-      continue;
-
-    if (mc->mixext.type != MIXT_ONOFF && mc->mixext.type != MIXT_MUTE)
-      continue;
-
-    mc->is_switch = TRUE;
-    mc->used = TRUE;
-
-    GST_LOG ("Switch: %s, parent=%s", mc->mixext.extname,
-        mc->parent->mixext.extname);
-  }
-}
-
-static void
-gst_oss4_mixer_controls_find_virtual (GstOss4Mixer * mixer,
-    const GList * controls)
-{
-  const GList *l;
-
-  for (l = controls; l != NULL; l = l->next) {
-    GstOss4MixerControl *mc = (GstOss4MixerControl *) l->data;
-
-    /* or sscanf (mc->mixext.extname, "vmix%d-out.", &n) == 1 ? */
-    /* for now we just flag all virtual controls with managed labels, those
-     * are really more appropriate for a pavucontrol-type control thing than
-     * the (more hardware-oriented) mixer interface */
-    if (mc->mixext.id[0] == '@') {
-      mc->is_virtual = TRUE;
-      GST_LOG ("%s is virtual control with managed label", mc->mixext.extname);
-    }
-  }
-}
-
-static void
-gst_oss4_mixer_controls_dump_unused (GstOss4Mixer * mixer,
-    const GList * controls)
-{
-  const GList *l;
-
-  for (l = controls; l != NULL; l = l->next) {
-    GstOss4MixerControl *mc = (GstOss4MixerControl *) l->data;
-
-    if (mc->used)
-      continue;
-
-    switch (mc->mixext.type) {
-      case MIXT_DEVROOT:
-      case MIXT_GROUP:
-      case MIXT_MESSAGE:
-      case MIXT_MONOVU:
-      case MIXT_STEREOVU:
-      case MIXT_MONOPEAK:
-      case MIXT_STEREOPEAK:
-      case MIXT_MARKER:
-        continue;               /* not interested in these types of controls */
-      case MIXT_MONODB:
-      case MIXT_STEREODB:
-        GST_DEBUG ("obsolete control type %d", mc->mixext.type);
-        continue;
-      case MIXT_MONOSLIDER:
-      case MIXT_STEREOSLIDER:
-      case MIXT_SLIDER:
-      case MIXT_MONOSLIDER16:
-      case MIXT_STEREOSLIDER16:
-        /* this shouldn't happen */
-        GST_ERROR ("unused slider control?!");
-        continue;
-      case MIXT_VALUE:
-      case MIXT_HEXVALUE:
-        /* value entry, not sure what to do with that, skip for now */
-        continue;
-      case MIXT_ONOFF:
-      case MIXT_MUTE:
-      case MIXT_ENUM:
-      case MIXT_3D:
-      case MIXT_RADIOGROUP:
-        GST_DEBUG ("FIXME: handle %s %s",
-            mixer_ext_type_get_name (mc->mixext.type), mc->mixext.extname);
-        break;
-      default:
-        GST_WARNING ("unknown control type %d", mc->mixext.type);
-        continue;
-    }
-  }
-}
-
-static GList *
-gst_oss4_mixer_create_tracks (GstOss4Mixer * mixer, const GList * controls)
-{
-  const GList *c;
-  GList *tracks = NULL;
-
-  for (c = controls; c != NULL; c = c->next) {
-    GstOss4MixerControl *mc = (GstOss4MixerControl *) c->data;
-    GstMixerTrack *track = NULL;
-
-    if (mc->is_virtual)
-      continue;
-
-    if (mc->is_slider) {
-      track = gst_oss4_mixer_slider_new (mixer, mc);
-    } else if (mc->is_enum) {
-      track = gst_oss4_mixer_enum_new (mixer, mc);
-    } else if (mc->is_switch) {
-      track = gst_oss4_mixer_switch_new (mixer, mc);
-    }
-
-    if (track == NULL)
-      continue;
-
-    track->label = gst_oss4_mixer_control_get_translated_name (mc);
-    track->flags = 0;
-
-    GST_LOG ("translated label: %s [%s] = %s", track->label, mc->mixext.id,
-        track->label);
-
-    /* This whole 'a track is either INPUT or OUTPUT' model is just flawed,
-     * esp. if a slider's role can be changed on the fly, like when you change
-     * function of a connector. What should we do in that case? Change the flag
-     * and make the app rebuild the interface? Ignore it? */
-    if (mc->mixext.flags & (MIXF_MAINVOL | MIXF_PCMVOL)) {
-      track->flags = GST_MIXER_TRACK_OUTPUT | GST_MIXER_TRACK_WHITELIST;
-
-    } else if (mc->mixext.flags & MIXF_RECVOL) {
-      /* record gain whitelisted by default */
-      track->flags = GST_MIXER_TRACK_INPUT | GST_MIXER_TRACK_NO_RECORD |
-          GST_MIXER_TRACK_WHITELIST;
-
-    } else if (mc->mixext.flags & MIXF_MONVOL) {
-      /* monitor sources not whitelisted by default */
-      track->flags = GST_MIXER_TRACK_INPUT | GST_MIXER_TRACK_NO_RECORD;
-    }
-
-    /*
-     * The kernel may give us better clues about the scope of a control.
-     * If so, try to honor it.
-     */
-    switch (mc->mixext.desc & MIXEXT_SCOPE_MASK) {
-      case MIXEXT_SCOPE_INPUT:
-      case MIXEXT_SCOPE_RECSWITCH:
-        track->flags |= GST_MIXER_TRACK_INPUT | GST_MIXER_TRACK_NO_RECORD |
-            GST_MIXER_TRACK_WHITELIST;
-        break;
-      case MIXEXT_SCOPE_MONITOR:
-        /* don't whitelist monitor tracks by default */
-        track->flags |= GST_MIXER_TRACK_INPUT | GST_MIXER_TRACK_NO_RECORD;
-        break;
-      case MIXEXT_SCOPE_OUTPUT:
-        track->flags = GST_MIXER_TRACK_OUTPUT | GST_MIXER_TRACK_WHITELIST;
-        break;
-    }
-
-    if (mc->is_master) {
-      track->flags |= GST_MIXER_TRACK_OUTPUT;
-    }
-
-    if (mc->is_master)
-      track->flags |= GST_MIXER_TRACK_MASTER;
-
-    tracks = g_list_append (tracks, track);
-  }
-
-  return tracks;
-}
-
-static void
-gst_oss4_mixer_update_tracks (GstOss4Mixer * mixer)
-{
-  GList *controls, *tracks;
-
-  /* read and process controls */
-  controls = gst_oss4_mixer_get_controls (mixer);
-
-  gst_oss4_mixer_controls_guess_master (mixer, controls);
-
-  gst_oss4_mixer_controls_find_sliders (mixer, controls);
-
-  gst_oss4_mixer_controls_find_enums (mixer, controls);
-
-  gst_oss4_mixer_controls_find_switches (mixer, controls);
-
-  gst_oss4_mixer_controls_find_virtual (mixer, controls);
-
-  gst_oss4_mixer_controls_dump_unused (mixer, controls);
-
-  tracks = gst_oss4_mixer_create_tracks (mixer, controls);
-
-  /* free old tracks and controls */
-  gst_oss4_mixer_free_tracks (mixer);
-
-  /* replace old with new */
-  mixer->tracks = tracks;
-  mixer->controls = controls;
-}
-
-static const GList *
-gst_oss4_mixer_list_tracks (GstMixer * mixer_iface)
-{
-  GstOss4Mixer *mixer = GST_OSS4_MIXER (mixer_iface);
-
-  g_return_val_if_fail (mixer != NULL, NULL);
-  g_return_val_if_fail (GST_OSS4_MIXER_IS_OPEN (mixer), NULL);
-
-  GST_OBJECT_LOCK (mixer);
-
-  /* Do a read on the last control to check if the interface has changed */
-  if (!mixer->need_update && mixer->last_mixext.ctrl > 0) {
-    GstOss4MixerControl mc = { {0,}
-    ,
-    };
-    int val;
-
-    mc.mixext = mixer->last_mixext;
-    gst_oss4_mixer_get_control_val (mixer, &mc, &val);
-  }
-
-  if (mixer->need_update || mixer->tracks == NULL) {
-    gst_oss4_mixer_update_tracks (mixer);
-    mixer->need_update = FALSE;
-  }
-
-  GST_OBJECT_UNLOCK (mixer);
-
-  return (const GList *) mixer->tracks;
-}
-
-static void
-gst_oss4_mixer_set_volume (GstMixer * mixer, GstMixerTrack * track,
-    gint * volumes)
-{
-  GstOss4Mixer *oss;
-
-  g_return_if_fail (mixer != NULL);
-  g_return_if_fail (GST_IS_OSS4_MIXER (mixer));
-  g_return_if_fail (GST_OSS4_MIXER_IS_OPEN (mixer));
-  g_return_if_fail (gst_oss4_mixer_contains_track (mixer, track));
-  g_return_if_fail (volumes != NULL);
-
-  oss = GST_OSS4_MIXER (mixer);
-
-  GST_OBJECT_LOCK (oss);
-
-  if (GST_IS_OSS4_MIXER_SLIDER (track)) {
-    gst_oss4_mixer_slider_set_volume (GST_OSS4_MIXER_SLIDER (track), volumes);
-  }
-
-  GST_OBJECT_UNLOCK (oss);
-}
-
-static void
-gst_oss4_mixer_get_volume (GstMixer * mixer, GstMixerTrack * track,
-    gint * volumes)
-{
-  GstOss4Mixer *oss;
-
-  g_return_if_fail (mixer != NULL);
-  g_return_if_fail (GST_IS_OSS4_MIXER (mixer));
-  g_return_if_fail (GST_OSS4_MIXER_IS_OPEN (mixer));
-  g_return_if_fail (gst_oss4_mixer_contains_track (mixer, track));
-  g_return_if_fail (volumes != NULL);
-
-  oss = GST_OSS4_MIXER (mixer);
-
-  GST_OBJECT_LOCK (oss);
-
-  memset (volumes, 0, track->num_channels * sizeof (gint));
-
-  if (GST_IS_OSS4_MIXER_SWITCH (track)) {
-    gboolean enabled = FALSE;
-    gst_oss4_mixer_switch_get (GST_OSS4_MIXER_SWITCH (track), &enabled);
-  }
-  if (GST_IS_OSS4_MIXER_SLIDER (track)) {
-    gst_oss4_mixer_slider_get_volume (GST_OSS4_MIXER_SLIDER (track), volumes);
-  }
-
-  GST_OBJECT_UNLOCK (oss);
-}
-
-static void
-gst_oss4_mixer_set_record (GstMixer * mixer, GstMixerTrack * track,
-    gboolean record)
-{
-  GstOss4Mixer *oss;
-
-  g_return_if_fail (mixer != NULL);
-  g_return_if_fail (GST_IS_OSS4_MIXER (mixer));
-  g_return_if_fail (GST_OSS4_MIXER_IS_OPEN (mixer));
-  g_return_if_fail (gst_oss4_mixer_contains_track (mixer, track));
-
-  oss = GST_OSS4_MIXER (mixer);
-
-  GST_OBJECT_LOCK (oss);
-
-  if (GST_IS_OSS4_MIXER_SLIDER (track)) {
-    gst_oss4_mixer_slider_set_record (GST_OSS4_MIXER_SLIDER (track), record);
-  } else if (GST_IS_OSS4_MIXER_SWITCH (track)) {
-    if ((track->flags & GST_MIXER_TRACK_INPUT)) {
-      gst_oss4_mixer_switch_set (GST_OSS4_MIXER_SWITCH (track), record);
-    } else {
-      GST_WARNING_OBJECT (track, "set_record called on non-INPUT track");
-    }
-  }
-
-  GST_OBJECT_UNLOCK (oss);
-}
-
-static void
-gst_oss4_mixer_set_mute (GstMixer * mixer, GstMixerTrack * track, gboolean mute)
-{
-  GstOss4Mixer *oss;
-
-  g_return_if_fail (mixer != NULL);
-  g_return_if_fail (GST_IS_OSS4_MIXER (mixer));
-  g_return_if_fail (GST_OSS4_MIXER_IS_OPEN (mixer));
-  g_return_if_fail (gst_oss4_mixer_contains_track (mixer, track));
-
-  oss = GST_OSS4_MIXER (mixer);
-
-  GST_OBJECT_LOCK (oss);
-
-  if (GST_IS_OSS4_MIXER_SLIDER (track)) {
-    gst_oss4_mixer_slider_set_mute (GST_OSS4_MIXER_SLIDER (track), mute);
-  } else if (GST_IS_OSS4_MIXER_SWITCH (track)) {
-    gst_oss4_mixer_switch_set (GST_OSS4_MIXER_SWITCH (track), mute);
-  }
-
-  GST_OBJECT_UNLOCK (oss);
-}
-
-static void
-gst_oss4_mixer_set_option (GstMixer * mixer, GstMixerOptions * options,
-    gchar * value)
-{
-  GstOss4Mixer *oss;
-
-  g_return_if_fail (mixer != NULL);
-  g_return_if_fail (value != NULL);
-  g_return_if_fail (GST_IS_OSS4_MIXER (mixer));
-  g_return_if_fail (GST_OSS4_MIXER_IS_OPEN (mixer));
-  g_return_if_fail (GST_IS_OSS4_MIXER_ENUM (options));
-  g_return_if_fail (gst_oss4_mixer_contains_options (mixer, options));
-
-  oss = GST_OSS4_MIXER (mixer);
-
-  GST_OBJECT_LOCK (oss);
-
-  if (!gst_oss4_mixer_enum_set_option (GST_OSS4_MIXER_ENUM (options), value)) {
-    /* not much we can do here but wake up the watch thread early, so it
-     * can do its thing and post messages if anything has changed */
-    gst_oss4_mixer_wake_up_watch_task (oss);
-  }
-
-  GST_OBJECT_UNLOCK (oss);
-}
-
-static const gchar *
-gst_oss4_mixer_get_option (GstMixer * mixer, GstMixerOptions * options)
-{
-  GstOss4Mixer *oss;
-  const gchar *current_val;
-
-  g_return_val_if_fail (mixer != NULL, NULL);
-  g_return_val_if_fail (GST_IS_OSS4_MIXER (mixer), NULL);
-  g_return_val_if_fail (GST_OSS4_MIXER_IS_OPEN (mixer), NULL);
-  g_return_val_if_fail (GST_IS_OSS4_MIXER_ENUM (options), NULL);
-  g_return_val_if_fail (gst_oss4_mixer_contains_options (mixer, options), NULL);
-
-  oss = GST_OSS4_MIXER (mixer);
-
-  GST_OBJECT_LOCK (oss);
-
-  current_val = gst_oss4_mixer_enum_get_option (GST_OSS4_MIXER_ENUM (options));
-
-  if (current_val == NULL) {
-    /* not much we can do here but wake up the watch thread early, so it
-     * can do its thing and post messages if anything has changed */
-    gst_oss4_mixer_wake_up_watch_task (oss);
-  }
-
-  GST_OBJECT_UNLOCK (oss);
-
-  return current_val;
-}
-
-static GstMixerFlags
-gst_oss4_mixer_get_mixer_flags (GstMixer * mixer)
-{
-  return GST_MIXER_FLAG_AUTO_NOTIFICATIONS | GST_MIXER_FLAG_HAS_WHITELIST |
-      GST_MIXER_FLAG_GROUPING;
-}
-
-static void
-gst_oss4_mixer_interface_init (GstMixerClass * klass)
-{
-  GST_MIXER_TYPE (klass) = GST_MIXER_HARDWARE;
-
-  klass->list_tracks = gst_oss4_mixer_list_tracks;
-  klass->set_volume = gst_oss4_mixer_set_volume;
-  klass->get_volume = gst_oss4_mixer_get_volume;
-  klass->set_mute = gst_oss4_mixer_set_mute;
-  klass->set_record = gst_oss4_mixer_set_record;
-  klass->set_option = gst_oss4_mixer_set_option;
-  klass->get_option = gst_oss4_mixer_get_option;
-  klass->get_mixer_flags = gst_oss4_mixer_get_mixer_flags;
-}
-
-/* Implement the horror that is GstImplementsInterface */
-
-static gboolean
-gst_oss4_mixer_supported (GstImplementsInterface * iface, GType iface_type)
-{
-  GstOss4Mixer *mixer;
-
-  g_return_val_if_fail (iface_type == GST_TYPE_MIXER, FALSE);
-
-  mixer = GST_OSS4_MIXER (iface);
-
-  return GST_OSS4_MIXER_IS_OPEN (mixer);
-}
-
-static void
-gst_oss4_mixer_implements_interface_init (GstImplementsInterfaceClass * klass)
-{
-  klass->supported = gst_oss4_mixer_supported;
-}
-
-static void
-gst_oss4_mixer_init_interfaces (GType type)
-{
-  static const GInterfaceInfo implements_iface_info = {
-    (GInterfaceInitFunc) gst_oss4_mixer_implements_interface_init,
-    NULL,
-    NULL,
-  };
-  static const GInterfaceInfo mixer_iface_info = {
-    (GInterfaceInitFunc) gst_oss4_mixer_interface_init,
-    NULL,
-    NULL,
-  };
-
-  g_type_add_interface_static (type, GST_TYPE_IMPLEMENTS_INTERFACE,
-      &implements_iface_info);
-  g_type_add_interface_static (type, GST_TYPE_MIXER, &mixer_iface_info);
-
-  gst_oss4_add_property_probe_interface (type);
-}
diff --git a/sys/oss4/oss4-mixer.h b/sys/oss4/oss4-mixer.h
deleted file mode 100644
index 4eaff50c5..000000000
--- a/sys/oss4/oss4-mixer.h
+++ /dev/null
@@ -1,128 +0,0 @@
-/* GStreamer OSS4 mixer implementation
- * Copyright (C) 2007-2008 Tim-Philipp Müller <tim centricular net>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef OSS4_MIXER_H
-#define OSS4_MIXER_H
-
-#include <gst/gst.h>
-
-#include "oss4-soundcard.h"
-
-#define GST_OSS4_MIXER(obj)              (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OSS4_MIXER,GstOss4Mixer))
-#define GST_OSS4_MIXER_CAST(obj)         ((GstOss4Mixer *)(obj))
-#define GST_OSS4_MIXER_CLASS(klass)      (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OSS4_MIXER,GstOss4MixerClass))
-#define GST_IS_OSS4_MIXER(obj)           (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OSS4_MIXER))
-#define GST_IS_OSS4_MIXER_CLASS(klass)   (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OSS4_MIXER))
-#define GST_TYPE_OSS4_MIXER              (gst_oss4_mixer_get_type())
-
-#define GST_OSS4_MIXER_IS_OPEN(obj)      (GST_OSS4_MIXER(obj)->fd != -1)
-
-typedef struct _GstOss4Mixer GstOss4Mixer;
-typedef struct _GstOss4MixerClass GstOss4MixerClass;
-
-struct _GstOss4Mixer {
-  GstElement            element;
-
-  /*< private >*/
-
-  /* element bits'n'bops */ 
-  gchar               * device;
-
-  /* mixer details */
-  gint                  fd;             /* file descriptor if open, or -1    */
-  gchar               * device_name;    /* device description, or NULL       */
-  gchar               * open_device;    /* the device we opened              */
-
-  GList               * tracks;         /* list of available tracks          */
-  GList               * controls;       /* list of available controls        */
-  gboolean              need_update;    /* re-read list of available tracks? */
-
-  oss_mixext            last_mixext;    /* we keep this around so we can
-                                         * easily check if the mixer
-                                         * interface has changed             */
-
-  GThread             * watch_thread;   /* thread watching for value changes */
-  GCond               * watch_cond;
-  gint                  watch_shutdown;
-  gint                  modify_counter; /* from MIXERINFO */
-
-  /* for property probe interface */
-  GList               * property_probe_list;
-};
-
-struct _GstOss4MixerClass {
-  GstElementClass       element_class;
-};
-
-/* helper struct holding info about one control */
-typedef struct _GstOss4MixerControl GstOss4MixerControl;
-
-struct _GstOss4MixerControl {
-  oss_mixext           mixext;
-  GstOss4MixerControl *parent;         /* NULL if root                         */
-  GstOss4MixerControl *mute;           /* sibling with mute function, or NULL  */
-  GList               *mute_group;     /* group of mute controls, or NULL      */
-  GList               *children;       /* GstOss4MixerControls (no ownership)  */
-
-  GQuark              *enum_vals;      /* 0-terminated array of values or NULL */
-  int                  enum_version;   /* 0 = list won't change                */
-
-  int                  last_val;       /* last value seen                      */
-
-  gboolean             is_virtual : 1; /* is a vmix control with dynamic label */
-  gboolean             is_master  : 1;
-  gboolean             is_slider  : 1; /* represent as slider                  */
-  gboolean             is_switch  : 1; /* represent as switch                  */
-  gboolean             is_enum    : 1; /* represent as combo/enumeration       */
-  gboolean             no_list    : 1; /* enumeration with no list available   */
-  gboolean             is_input   : 1; /* is an input-related control          */
-  gboolean             is_output  : 1; /* is an output-related control         */
-  gboolean             used       : 1; /* whether we know what to do with this */
-
-  gboolean             changed      : 1; /* transient flag used by watch thread */
-  gboolean             list_changed : 1; /* transient flag used by watch thread */
-};
-
-/* header says parent=-1 means root, but it can also be parent=ctrl */
-#define MIXEXT_IS_ROOT(me) ((me).parent == -1 || (me).parent == (me).ctrl)
-
-#define MIXEXT_IS_SLIDER(me) ((me).type == MIXT_MONOSLIDER ||            \
-    (me).type == MIXT_STEREOSLIDER || (me).type == MIXT_MONOSLIDER16 ||  \
-    (me).type == MIXT_STEREOSLIDER16 || (me).type == MIXT_SLIDER)
-
-#define MIXEXT_HAS_DESCRIPTION(me) (((me).flags & MIXF_DESCR) != 0)
-
-#define MIXEXT_ENUM_IS_AVAILABLE(me,num) \
-    (((me).enum_present[num/8]) & (1 << (num % 8)))
-
-
-GType     gst_oss4_mixer_get_type (void);
-
-gboolean  gst_oss4_mixer_get_control_val (GstOss4Mixer        * mixer,
-                                          GstOss4MixerControl * mc,
-                                          int                 * val);
-
-gboolean  gst_oss4_mixer_set_control_val (GstOss4Mixer        * mixer,
-                                          GstOss4MixerControl * mc,
-                                          int                   val);
-
-G_END_DECLS
-
-#endif /* OSS4_MIXER_H */
-
diff --git a/sys/oss4/oss4-property-probe.c b/sys/oss4/oss4-property-probe.c
deleted file mode 100644
index 9a625d84f..000000000
--- a/sys/oss4/oss4-property-probe.c
+++ /dev/null
@@ -1,414 +0,0 @@
-/* GStreamer OSS4 audio property probe interface implementation
- * Copyright (C) 2007-2008 Tim-Philipp Müller <tim centricular net>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <gst/gst.h>
-
-#define NO_LEGACY_MIXER
-#include "oss4-audio.h"
-#include "oss4-mixer.h"
-#include "oss4-sink.h"
-#include "oss4-source.h"
-#include "oss4-soundcard.h"
-#include "oss4-property-probe.h"
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/ioctl.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <errno.h>
-#include <string.h>
-
-GST_DEBUG_CATEGORY_EXTERN (oss4_debug);
-#define GST_CAT_DEFAULT oss4_debug
-
-static const GList *
-gst_oss4_property_probe_get_properties (GstPropertyProbe * probe)
-{
-  GObjectClass *klass = G_OBJECT_GET_CLASS (probe);
-  GList *list;
-
-  GST_OBJECT_LOCK (GST_OBJECT (probe));
-
-  /* we create a new list and store it in the instance struct, since apparently
-   * we forgot to update the API for 0.10 (and why don't we mark probable
-   * properties with a flag instead anyway?). A bit hackish, but what can you
-   * do (can't really use a static variable since the pspec will be different
-   * for src and sink class); this isn't particularly pretty, but the best
-   * we can do given that we can't create a common base class (we could do
-   * fancy things with the interface, or use g_object_set_data instead, but
-   * it's not really going to make it much better) */
-  if (GST_IS_AUDIO_SINK_CLASS (klass)) {
-    list = GST_OSS4_SINK (probe)->property_probe_list;
-  } else if (GST_IS_AUDIO_SRC_CLASS (klass)) {
-    list = GST_OSS4_SOURCE (probe)->property_probe_list;
-  } else if (GST_IS_OSS4_MIXER_CLASS (klass)) {
-    list = GST_OSS4_MIXER (probe)->property_probe_list;
-  } else {
-    GST_OBJECT_UNLOCK (GST_OBJECT (probe));
-    g_return_val_if_reached (NULL);
-  }
-
-  if (list == NULL) {
-    GParamSpec *pspec;
-
-    pspec = g_object_class_find_property (klass, "device");
-    list = g_list_prepend (NULL, pspec);
-
-    if (GST_IS_AUDIO_SINK_CLASS (klass)) {
-      GST_OSS4_SINK (probe)->property_probe_list = list;
-    } else if (GST_IS_AUDIO_SRC_CLASS (klass)) {
-      GST_OSS4_SOURCE (probe)->property_probe_list = list;
-    } else if (GST_IS_OSS4_MIXER_CLASS (klass)) {
-      GST_OSS4_MIXER (probe)->property_probe_list = list;
-    }
-  }
-
-  GST_OBJECT_UNLOCK (GST_OBJECT (probe));
-
-  return list;
-}
-
-static void
-gst_oss4_property_probe_probe_property (GstPropertyProbe * probe,
-    guint prop_id, const GParamSpec * pspec)
-{
-  if (!g_str_equal (pspec->name, "device")) {
-    G_OBJECT_WARN_INVALID_PROPERTY_ID (probe, prop_id, pspec);
-  }
-}
-
-static gboolean
-gst_oss4_property_probe_needs_probe (GstPropertyProbe * probe,
-    guint prop_id, const GParamSpec * pspec)
-{
-  /* don't cache probed data */
-  return TRUE;
-}
-
-static gint
-oss4_mixerinfo_priority_cmp (struct oss_mixerinfo *mi1,
-    struct oss_mixerinfo *mi2)
-{
-  /* return negative vaue if mi1 comes before mi2 */
-  if (mi1->priority != mi2->priority)
-    return mi2->priority - mi1->priority;
-
-  return strcmp (mi1->devnode, mi2->devnode);
-}
-
-/* caller must ensure LOCK is taken (e.g. if ioctls need to be serialised) */
-gboolean
-gst_oss4_property_probe_find_device_name (GstObject * obj, int fd,
-    const gchar * device_handle, gchar ** device_name)
-{
-  struct oss_sysinfo si = { {0,}, };
-  gchar *name = NULL;
-
-  if (ioctl (fd, SNDCTL_SYSINFO, &si) == 0) {
-    int i;
-
-    for (i = 0; i < si.numaudios; ++i) {
-      struct oss_audioinfo ai = { 0, };
-
-      ai.dev = i;
-      if (ioctl (fd, SNDCTL_AUDIOINFO, &ai) == -1) {
-        GST_DEBUG_OBJECT (obj, "AUDIOINFO ioctl for device %d failed", i);
-        continue;
-      }
-      if (strcmp (ai.devnode, device_handle) == 0) {
-        name = g_strdup (ai.name);
-        break;
-      }
-    }
-  } else {
-    GST_WARNING_OBJECT (obj, "SYSINFO ioctl failed: %s", g_strerror (errno));
-  }
-
-  /* try ENGINEINFO as fallback (which is better than nothing) */
-  if (name == NULL) {
-    struct oss_audioinfo ai = { 0, };
-
-    GST_LOG_OBJECT (obj, "device %s not listed in AUDIOINFO", device_handle);
-    ai.dev = -1;
-    if (ioctl (fd, SNDCTL_ENGINEINFO, &ai) == 0)
-      name = g_strdup (ai.name);
-  }
-
-  GST_DEBUG_OBJECT (obj, "Device name: %s", GST_STR_NULL (name));
-
-  if (name != NULL)
-    *device_name = name;
-
-  return (name != NULL);
-}
-
-gboolean
-gst_oss4_property_probe_find_device_name_nofd (GstObject * obj,
-    const gchar * device_handle, gchar ** device_name)
-{
-  gboolean res;
-  int fd;
-
-  fd = open ("/dev/mixer", O_RDONLY);
-  if (fd < 0)
-    return FALSE;
-
-  res = gst_oss4_property_probe_find_device_name (obj, fd, device_handle,
-      device_name);
-
-  close (fd);
-  return res;
-}
-
-static GList *
-gst_oss4_property_probe_get_mixer_devices (GstObject * obj, int fd,
-    struct oss_sysinfo *si)
-{
-  GList *m, *mixers = NULL;
-  GList *devices = NULL;
-
-  int i;
-
-  GST_LOG_OBJECT (obj, "%d mixer devices", si->nummixers);
-
-  /* first, find suitable mixer devices and sort by priority */
-  for (i = 0; i < si->nummixers; ++i) {
-    struct oss_mixerinfo mi = { 0, };
-
-    mi.dev = i;
-    if (ioctl (fd, SNDCTL_MIXERINFO, &mi) == -1) {
-      GST_DEBUG_OBJECT (obj, "MIXERINFO ioctl for device %d failed", i);
-      continue;
-    }
-
-    GST_INFO_OBJECT (obj, "mixer device %d:", i);
-    GST_INFO_OBJECT (obj, "  enabled  : %s", (mi.enabled) ? "yes" :
-        "no (powered off or unplugged)");
-    GST_INFO_OBJECT (obj, "  priority : %d", mi.priority);
-    GST_INFO_OBJECT (obj, "  devnode  : %s", mi.devnode);
-    GST_INFO_OBJECT (obj, "  handle   : %s", mi.handle);
-    GST_INFO_OBJECT (obj, "  caps     : 0x%02x", mi.caps);
-    GST_INFO_OBJECT (obj, "  name     : %s", mi.name);
-
-    if (!mi.enabled) {
-      GST_DEBUG_OBJECT (obj, "mixer device is not usable/enabled, skipping");
-      continue;
-    }
-
-    /* only want mixers that control hardware directly */
-    if ((mi.caps & MIXER_CAP_VIRTUAL)) {
-      GST_DEBUG_OBJECT (obj, "mixer device is a virtual device, skipping");
-      continue;
-    }
-
-    mixers = g_list_insert_sorted (mixers, g_memdup (&mi, sizeof (mi)),
-        (GCompareFunc) oss4_mixerinfo_priority_cmp);
-  }
-
-  /* then create device list according to priority */
-  for (m = mixers; m != NULL; m = m->next) {
-    struct oss_mixerinfo *mi = (struct oss_mixerinfo *) m->data;
-
-    GST_LOG_OBJECT (obj, "mixer device: '%s'", mi->devnode);
-    devices = g_list_prepend (devices, g_strdup (mi->devnode));
-    g_free (m->data);
-  }
-  g_list_free (mixers);
-  mixers = NULL;
-
-  return g_list_reverse (devices);
-}
-
-static GList *
-gst_oss4_property_probe_get_audio_devices (GstObject * obj, int fd,
-    struct oss_sysinfo *si, int cap_mask)
-{
-  GList *devices = NULL;
-  int i;
-
-  GST_LOG_OBJECT (obj, "%d audio/dsp devices", si->numaudios);
-
-  for (i = 0; i < si->numaudios; ++i) {
-    struct oss_audioinfo ai = { 0, };
-
-    ai.dev = i;
-    if (ioctl (fd, SNDCTL_AUDIOINFO, &ai) == -1) {
-      GST_DEBUG_OBJECT (obj, "AUDIOINFO ioctl for device %d failed", i);
-      continue;
-    }
-
-    if ((ai.caps & cap_mask) == 0) {
-      GST_DEBUG_OBJECT (obj, "audio device %d is not an %s device", i,
-          (cap_mask == PCM_CAP_OUTPUT) ? "output" : "input");
-      continue;
-    }
-
-    if (!ai.enabled) {
-      GST_DEBUG_OBJECT (obj, "audio device %d is not usable/enabled", i);
-      continue;
-    }
-
-    GST_DEBUG_OBJECT (obj, "audio device %d looks ok: %s (\"%s\")", i,
-        ai.devnode, ai.name);
-
-    devices = g_list_prepend (devices, g_strdup (ai.devnode));
-  }
-
-  return g_list_reverse (devices);
-}
-
-static GValueArray *
-gst_oss4_property_probe_get_values (GstPropertyProbe * probe,
-    guint prop_id, const GParamSpec * pspec)
-{
-  struct oss_sysinfo si = { {0,}, };
-  GstElementClass *klass;
-  GValueArray *array = NULL;
-  GstObject *obj;
-  GList *devices, *l;
-  int cap_mask, fd = -1;
-
-  if (!g_str_equal (pspec->name, "device")) {
-    G_OBJECT_WARN_INVALID_PROPERTY_ID (probe, prop_id, pspec);
-    return NULL;
-  }
-
-  obj = GST_OBJECT (probe);
-
-  GST_OBJECT_LOCK (obj);
-
-  /* figure out whether the element is a source or sink */
-  klass = GST_ELEMENT_GET_CLASS (GST_ELEMENT (probe));
-  if (GST_IS_OSS4_SINK (probe)) {
-    GST_DEBUG_OBJECT (probe, "probing available output devices");
-    cap_mask = PCM_CAP_OUTPUT;
-    fd = GST_OSS4_SINK (probe)->fd;
-  } else if (GST_IS_OSS4_SOURCE (probe)) {
-    GST_DEBUG_OBJECT (probe, "probing available input devices");
-    cap_mask = PCM_CAP_INPUT;
-    fd = GST_OSS4_SOURCE (probe)->fd;
-  } else if (GST_IS_OSS4_MIXER (probe)) {
-    fd = GST_OSS4_MIXER (probe)->fd;
-    cap_mask = 0;
-  } else {
-    GST_OBJECT_UNLOCK (obj);
-    g_return_val_if_reached (NULL);
-  }
-
-  /* copy fd if it's open, so we can just unconditionally close() later */
-  if (fd != -1)
-    fd = dup (fd);
-
-  /* this will also catch the unlikely case where the above dup() failed */
-  if (fd == -1) {
-    fd = open ("/dev/mixer", O_RDONLY | O_NONBLOCK, 0);
-    if (fd < 0)
-      goto open_failed;
-    else if (!gst_oss4_audio_check_version (GST_OBJECT (probe), fd))
-      goto legacy_oss;
-  }
-
-  if (ioctl (fd, SNDCTL_SYSINFO, &si) == -1)
-    goto no_sysinfo;
-
-  if (cap_mask != 0) {
-    devices =
-        gst_oss4_property_probe_get_audio_devices (obj, fd, &si, cap_mask);
-  } else {
-    devices = gst_oss4_property_probe_get_mixer_devices (obj, fd, &si);
-  }
-
-  if (devices == NULL) {
-    GST_DEBUG_OBJECT (obj, "No devices found");
-    goto done;
-  }
-
-  array = g_value_array_new (1);
-
-  for (l = devices; l != NULL; l = l->next) {
-    GValue val = { 0, };
-
-    g_value_init (&val, G_TYPE_STRING);
-    g_value_take_string (&val, (gchar *) l->data);
-    l->data = NULL;
-    g_value_array_append (array, &val);
-    g_value_unset (&val);
-  }
-
-  GST_OBJECT_UNLOCK (obj);
-
-  g_list_free (devices);
-
-done:
-
-  close (fd);
-
-  return array;
-
-/* ERRORS */
-open_failed:
-  {
-    GST_OBJECT_UNLOCK (GST_OBJECT (probe));
-    GST_WARNING_OBJECT (probe, "Can't open file descriptor to probe "
-        "available devices: %s", g_strerror (errno));
-    return NULL;
-  }
-legacy_oss:
-  {
-    close (fd);
-    GST_OBJECT_UNLOCK (GST_OBJECT (probe));
-    GST_DEBUG_OBJECT (probe, "Legacy OSS (ie. not OSSv4), not supported");
-    return NULL;
-  }
-no_sysinfo:
-  {
-    close (fd);
-    GST_OBJECT_UNLOCK (GST_OBJECT (probe));
-    GST_WARNING_OBJECT (probe, "Can't open file descriptor to probe "
-        "available devices: %s", g_strerror (errno));
-    return NULL;
-  }
-}
-
-static void
-gst_oss4_property_probe_interface_init (GstPropertyProbeInterface * iface)
-{
-  iface->get_properties = gst_oss4_property_probe_get_properties;
-  iface->probe_property = gst_oss4_property_probe_probe_property;
-  iface->needs_probe = gst_oss4_property_probe_needs_probe;
-  iface->get_values = gst_oss4_property_probe_get_values;
-}
-
-void
-gst_oss4_add_property_probe_interface (GType type)
-{
-  static const GInterfaceInfo probe_iface_info = {
-    (GInterfaceInitFunc) gst_oss4_property_probe_interface_init,
-    NULL,
-    NULL,
-  };
-
-  g_type_add_interface_static (type, GST_TYPE_PROPERTY_PROBE,
-      &probe_iface_info);
-}
diff --git a/sys/oss4/oss4-property-probe.h b/sys/oss4/oss4-property-probe.h
deleted file mode 100644
index 707af024c..000000000
--- a/sys/oss4/oss4-property-probe.h
+++ /dev/null
@@ -1,38 +0,0 @@
-/* GStreamer OSS4 audio property probe interface implementation
- * Copyright (C) 2007-2008 Tim-Philipp Müller <tim centricular net>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef GST_OSS4_PROPERTY_PROBE_H
-#define GST_OSS4_PROPERTY_PROBE_H
-
-#include <gst/interfaces/propertyprobe.h>
-
-void      gst_oss4_add_property_probe_interface (GType type);
-
-gboolean  gst_oss4_property_probe_find_device_name (GstObject   * obj,
-                                                    int           fd,
-                                                    const gchar * device_handle,
-                                                    gchar      ** device_name);
-
-gboolean  gst_oss4_property_probe_find_device_name_nofd (GstObject   * obj,
-                                                         const gchar * device_handle,
-                                                         gchar      ** device_name);
-
-#endif /* GST_OSS4_PROPERTY_PROBE_H */
-
-
diff --git a/sys/oss4/oss4-sink.c b/sys/oss4/oss4-sink.c
deleted file mode 100644
index e59d87821..000000000
--- a/sys/oss4/oss4-sink.c
+++ /dev/null
@@ -1,699 +0,0 @@
-/* GStreamer OSS4 audio sink
- * Copyright (C) 2007-2008 Tim-Philipp Müller <tim centricular net>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-/**
- * SECTION:element-oss4sink
- *
- * This element lets you output sound using the Open Sound System (OSS)
- * version 4.
- * 
- * Note that you should almost always use generic audio conversion elements
- * like audioconvert and audioresample in front of an audiosink to make sure
- * your pipeline works under all circumstances (those conversion elements will
- * act in passthrough-mode if no conversion is necessary).
- * 
- * <refsect2>
- * <title>Example pipelines</title>
- * |[
- * gst-launch -v audiotestsrc ! audioconvert ! volume volume=0.1 ! oss4sink
- * ]| will output a sine wave (continuous beep sound) to your sound card (with
- * a very low volume as precaution).
- * |[
- * gst-launch -v filesrc location=music.ogg ! decodebin ! audioconvert ! audioresample ! oss4sink
- * ]| will play an Ogg/Vorbis audio file and output it using the Open Sound System
- * version 4.
- * </refsect2>
- *
- * Since: 0.10.7
- */
-
-/* TODO: - add "volume" property for stream volume control and intercept tags
- *         to set stream title
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/ioctl.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <unistd.h>
-#include <string.h>
-
-#include <gst/gst-i18n-plugin.h>
-#include <gst/interfaces/streamvolume.h>
-
-#define NO_LEGACY_MIXER
-#include "oss4-audio.h"
-#include "oss4-sink.h"
-#include "oss4-property-probe.h"
-#include "oss4-soundcard.h"
-
-GST_DEBUG_CATEGORY_EXTERN (oss4sink_debug);
-#define GST_CAT_DEFAULT oss4sink_debug
-
-static void gst_oss4_sink_init_interfaces (GType type);
-static void gst_oss4_sink_dispose (GObject * object);
-static void gst_oss4_sink_finalise (GObject * object);
-
-static void gst_oss4_sink_get_property (GObject * object, guint prop_id,
-    GValue * value, GParamSpec * pspec);
-static void gst_oss4_sink_set_property (GObject * object, guint prop_id,
-    const GValue * value, GParamSpec * pspec);
-
-static GstCaps *gst_oss4_sink_getcaps (GstBaseSink * bsink);
-static gboolean gst_oss4_sink_open (GstAudioSink * asink,
-    gboolean silent_errors);
-static gboolean gst_oss4_sink_open_func (GstAudioSink * asink);
-static gboolean gst_oss4_sink_close (GstAudioSink * asink);
-static gboolean gst_oss4_sink_prepare (GstAudioSink * asink,
-    GstRingBufferSpec * spec);
-static gboolean gst_oss4_sink_unprepare (GstAudioSink * asink);
-static guint gst_oss4_sink_write (GstAudioSink * asink, gpointer data,
-    guint length);
-static guint gst_oss4_sink_delay (GstAudioSink * asink);
-static void gst_oss4_sink_reset (GstAudioSink * asink);
-
-#define DEFAULT_DEVICE      NULL
-#define DEFAULT_DEVICE_NAME NULL
-#define DEFAULT_MUTE        FALSE
-#define DEFAULT_VOLUME      1.0
-#define MAX_VOLUME          10.0
-
-enum
-{
-  PROP_0,
-  PROP_DEVICE,
-  PROP_DEVICE_NAME,
-  PROP_VOLUME,
-  PROP_MUTE,
-  PROP_LAST
-};
-
-GST_BOILERPLATE_FULL (GstOss4Sink, gst_oss4_sink, GstAudioSink,
-    GST_TYPE_AUDIO_SINK, gst_oss4_sink_init_interfaces);
-
-static void
-gst_oss4_sink_dispose (GObject * object)
-{
-  GstOss4Sink *osssink = GST_OSS4_SINK (object);
-
-  if (osssink->probed_caps) {
-    gst_caps_unref (osssink->probed_caps);
-    osssink->probed_caps = NULL;
-  }
-
-  G_OBJECT_CLASS (parent_class)->dispose (object);
-}
-
-static void
-gst_oss4_sink_base_init (gpointer g_class)
-{
-  GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
-  GstPadTemplate *templ;
-
-  gst_element_class_set_details_simple (element_class,
-      "OSS v4 Audio Sink", "Sink/Audio",
-      "Output to a sound card via OSS version 4",
-      "Tim-Philipp Müller <tim centricular net>");
-
-  templ = gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
-      gst_oss4_audio_get_template_caps ());
-  gst_element_class_add_pad_template (element_class, templ);
-}
-
-static void
-gst_oss4_sink_class_init (GstOss4SinkClass * klass)
-{
-  GstAudioSinkClass *audiosink_class = (GstAudioSinkClass *) klass;
-  GstBaseSinkClass *basesink_class = (GstBaseSinkClass *) klass;
-  GObjectClass *gobject_class = (GObjectClass *) klass;
-
-  gobject_class->dispose = GST_DEBUG_FUNCPTR (gst_oss4_sink_dispose);
-  gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_oss4_sink_finalise);
-  gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_oss4_sink_get_property);
-  gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_oss4_sink_set_property);
-
-  g_object_class_install_property (gobject_class, PROP_DEVICE,
-      g_param_spec_string ("device", "Device",
-          "OSS4 device (e.g. /dev/oss/hdaudio0/pcm0 or /dev/dspN) "
-          "(NULL = use first available playback device)",
-          DEFAULT_DEVICE, G_PARAM_READWRITE));
-
-  g_object_class_install_property (gobject_class, PROP_DEVICE_NAME,
-      g_param_spec_string ("device-name", "Device name",
-          "Human-readable name of the sound device", DEFAULT_DEVICE_NAME,
-          G_PARAM_READABLE));
-
-  g_object_class_install_property (gobject_class,
-      PROP_VOLUME,
-      g_param_spec_double ("volume", "Volume",
-          "Linear volume of this stream, 1.0=100%", 0.0, MAX_VOLUME,
-          DEFAULT_VOLUME, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
-  g_object_class_install_property (gobject_class,
-      PROP_MUTE,
-      g_param_spec_boolean ("mute", "Mute",
-          "Mute state of this stream", DEFAULT_MUTE,
-          G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
-  basesink_class->get_caps = GST_DEBUG_FUNCPTR (gst_oss4_sink_getcaps);
-
-  audiosink_class->open = GST_DEBUG_FUNCPTR (gst_oss4_sink_open_func);
-  audiosink_class->close = GST_DEBUG_FUNCPTR (gst_oss4_sink_close);
-  audiosink_class->prepare = GST_DEBUG_FUNCPTR (gst_oss4_sink_prepare);
-  audiosink_class->unprepare = GST_DEBUG_FUNCPTR (gst_oss4_sink_unprepare);
-  audiosink_class->write = GST_DEBUG_FUNCPTR (gst_oss4_sink_write);
-  audiosink_class->delay = GST_DEBUG_FUNCPTR (gst_oss4_sink_delay);
-  audiosink_class->reset = GST_DEBUG_FUNCPTR (gst_oss4_sink_reset);
-}
-
-static void
-gst_oss4_sink_init (GstOss4Sink * osssink, GstOss4SinkClass * klass)
-{
-  const gchar *device;
-
-  device = g_getenv ("AUDIODEV");
-  if (device == NULL)
-    device = DEFAULT_DEVICE;
-  osssink->device = g_strdup (device);
-  osssink->fd = -1;
-  osssink->bytes_per_sample = 0;
-  osssink->probed_caps = NULL;
-  osssink->device_name = NULL;
-  osssink->mute_volume = 100 | (100 << 8);
-}
-
-static void
-gst_oss4_sink_finalise (GObject * object)
-{
-  GstOss4Sink *osssink = GST_OSS4_SINK (object);
-
-  g_free (osssink->device);
-  osssink->device = NULL;
-
-  g_list_free (osssink->property_probe_list);
-  osssink->property_probe_list = NULL;
-
-  G_OBJECT_CLASS (parent_class)->finalize (object);
-}
-
-static void
-gst_oss4_sink_set_volume (GstOss4Sink * oss, gdouble volume)
-{
-  int ivol;
-
-  volume = volume * 100.0;
-  ivol = (int) volume | ((int) volume << 8);
-  GST_OBJECT_LOCK (oss);
-  if (ioctl (oss->fd, SNDCTL_DSP_SETPLAYVOL, &ivol) < 0) {
-    GST_LOG_OBJECT (oss, "SETPLAYVOL failed");
-  }
-  GST_OBJECT_UNLOCK (oss);
-}
-
-static gdouble
-gst_oss4_sink_get_volume (GstOss4Sink * oss)
-{
-  int ivol, lvol, rvol;
-  gdouble dvol = DEFAULT_VOLUME;
-
-  GST_OBJECT_LOCK (oss);
-  if (ioctl (oss->fd, SNDCTL_DSP_GETPLAYVOL, &ivol) < 0) {
-    GST_LOG_OBJECT (oss, "GETPLAYVOL failed");
-  } else {
-    /* Return the higher of the two volume channels, if different */
-    lvol = ivol & 0xff;
-    rvol = (ivol >> 8) & 0xff;
-    dvol = MAX (lvol, rvol) / 100.0;
-  }
-  GST_OBJECT_UNLOCK (oss);
-
-  return dvol;
-}
-
-static void
-gst_oss4_sink_set_mute (GstOss4Sink * oss, gboolean mute)
-{
-  int ivol;
-
-  if (mute) {
-    /*
-     * OSSv4 does not have a per-channel mute, so simulate by setting
-     * the value to 0.  Save the volume before doing a mute so we can
-     * reset the value when the user un-mutes.
-     */
-    ivol = 0;
-
-    GST_OBJECT_LOCK (oss);
-    if (ioctl (oss->fd, SNDCTL_DSP_GETPLAYVOL, &oss->mute_volume) < 0) {
-      GST_LOG_OBJECT (oss, "GETPLAYVOL failed");
-    }
-    if (ioctl (oss->fd, SNDCTL_DSP_SETPLAYVOL, &ivol) < 0) {
-      GST_LOG_OBJECT (oss, "SETPLAYVOL failed");
-    }
-    GST_OBJECT_UNLOCK (oss);
-  } else {
-    /*
-     * If the saved volume is 0, then reset it to 100.  Otherwise the mute
-     * can get stuck.  This can happen, for example, due to rounding
-     * errors in converting from the float to an integer.
-     */
-    if (oss->mute_volume == 0) {
-      oss->mute_volume = 100 | (100 << 8);
-    }
-    GST_OBJECT_LOCK (oss);
-    if (ioctl (oss->fd, SNDCTL_DSP_SETPLAYVOL, &oss->mute_volume) < 0) {
-      GST_LOG_OBJECT (oss, "SETPLAYVOL failed");
-    }
-    GST_OBJECT_UNLOCK (oss);
-  }
-}
-
-static gboolean
-gst_oss4_sink_get_mute (GstOss4Sink * oss)
-{
-  int ivol, lvol, rvol;
-
-  GST_OBJECT_LOCK (oss);
-  if (ioctl (oss->fd, SNDCTL_DSP_GETPLAYVOL, &ivol) < 0) {
-    GST_LOG_OBJECT (oss, "GETPLAYVOL failed");
-    lvol = rvol = 100;
-  } else {
-    lvol = ivol & 0xff;
-    rvol = (ivol >> 8) & 0xff;
-  }
-  GST_OBJECT_UNLOCK (oss);
-
-  return (lvol == 0 && rvol == 0);
-}
-
-static void
-gst_oss4_sink_set_property (GObject * object, guint prop_id,
-    const GValue * value, GParamSpec * pspec)
-{
-  GstOss4Sink *oss = GST_OSS4_SINK (object);
-
-  switch (prop_id) {
-    case PROP_DEVICE:
-      GST_OBJECT_LOCK (oss);
-      if (oss->fd == -1) {
-        g_free (oss->device);
-        oss->device = g_value_dup_string (value);
-        if (oss->probed_caps) {
-          gst_caps_unref (oss->probed_caps);
-          oss->probed_caps = NULL;
-        }
-        g_free (oss->device_name);
-        oss->device_name = NULL;
-      } else {
-        g_warning ("%s: can't change \"device\" property while audio sink "
-            "is open", GST_OBJECT_NAME (oss));
-      }
-      GST_OBJECT_UNLOCK (oss);
-      break;
-    case PROP_VOLUME:
-      gst_oss4_sink_set_volume (oss, g_value_get_double (value));
-      break;
-    case PROP_MUTE:
-      gst_oss4_sink_set_mute (oss, g_value_get_boolean (value));
-      break;
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-  }
-}
-
-static void
-gst_oss4_sink_get_property (GObject * object, guint prop_id,
-    GValue * value, GParamSpec * pspec)
-{
-  GstOss4Sink *oss = GST_OSS4_SINK (object);
-
-  switch (prop_id) {
-    case PROP_DEVICE:
-      GST_OBJECT_LOCK (oss);
-      g_value_set_string (value, oss->device);
-      GST_OBJECT_UNLOCK (oss);
-      break;
-    case PROP_DEVICE_NAME:
-      GST_OBJECT_LOCK (oss);
-      if (oss->fd == -1 && oss->device != NULL) {
-        /* If device is set, try to retrieve the name even if we're not open */
-        if (gst_oss4_sink_open (GST_AUDIO_SINK (oss), TRUE)) {
-          g_value_set_string (value, oss->device_name);
-          gst_oss4_sink_close (GST_AUDIO_SINK (oss));
-        } else {
-          gchar *name = NULL;
-
-          gst_oss4_property_probe_find_device_name_nofd (GST_OBJECT (oss),
-              oss->device, &name);
-          g_value_set_string (value, name);
-          g_free (name);
-        }
-      } else {
-        g_value_set_string (value, oss->device_name);
-      }
-      GST_OBJECT_UNLOCK (oss);
-      break;
-    case PROP_VOLUME:
-      g_value_set_double (value, gst_oss4_sink_get_volume (oss));
-      break;
-    case PROP_MUTE:
-      g_value_set_boolean (value, gst_oss4_sink_get_mute (oss));
-      break;
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-  }
-}
-
-static GstCaps *
-gst_oss4_sink_getcaps (GstBaseSink * bsink)
-{
-  GstOss4Sink *oss;
-  GstCaps *caps;
-
-  oss = GST_OSS4_SINK (bsink);
-
-  if (oss->fd == -1) {
-    caps = gst_caps_copy (gst_oss4_audio_get_template_caps ());
-  } else if (oss->probed_caps) {
-    caps = gst_caps_copy (oss->probed_caps);
-  } else {
-    caps = gst_oss4_audio_probe_caps (GST_OBJECT (oss), oss->fd);
-    if (caps != NULL && !gst_caps_is_empty (caps)) {
-      oss->probed_caps = gst_caps_copy (caps);
-    }
-  }
-
-  return caps;
-}
-
-/* note: we must not take the object lock here unless we fix up get_property */
-static gboolean
-gst_oss4_sink_open (GstAudioSink * asink, gboolean silent_errors)
-{
-  GstOss4Sink *oss;
-  gchar *device;
-  int mode;
-
-  oss = GST_OSS4_SINK (asink);
-
-  if (oss->device)
-    device = g_strdup (oss->device);
-  else
-    device = gst_oss4_audio_find_device (GST_OBJECT_CAST (oss));
-
-  /* desperate times, desperate measures */
-  if (device == NULL)
-    device = g_strdup ("/dev/dsp0");
-
-  GST_INFO_OBJECT (oss, "Trying to open OSS4 device '%s'", device);
-
-  /* we open in non-blocking mode even if we don't really want to do writes
-   * non-blocking because we can't be sure that this is really a genuine
-   * OSS4 device with well-behaved drivers etc. We really don't want to
-   * hang forever under any circumstances. */
-  oss->fd = open (device, O_WRONLY | O_NONBLOCK, 0);
-  if (oss->fd == -1) {
-    switch (errno) {
-      case EBUSY:
-        goto busy;
-      case EACCES:
-        goto no_permission;
-      default:
-        goto open_failed;
-    }
-  }
-
-  GST_INFO_OBJECT (oss, "Opened device '%s'", device);
-
-  /* Make sure it's OSS4. If it's old OSS, let osssink handle it */
-  if (!gst_oss4_audio_check_version (GST_OBJECT_CAST (oss), oss->fd))
-    goto legacy_oss;
-
-  /* now remove the non-blocking flag. */
-  mode = fcntl (oss->fd, F_GETFL);
-  mode &= ~O_NONBLOCK;
-  if (fcntl (oss->fd, F_SETFL, mode) < 0) {
-    /* some drivers do no support unsetting the non-blocking flag, try to
-     * close/open the device then. This is racy but we error out properly. */
-    GST_WARNING_OBJECT (oss, "failed to unset O_NONBLOCK (buggy driver?), "
-        "will try to re-open device now");
-    gst_oss4_sink_close (asink);
-    if ((oss->fd = open (device, O_WRONLY, 0)) == -1)
-      goto non_block;
-  }
-
-  oss->open_device = device;
-
-  /* not using ENGINEINFO here because it sometimes returns a different and
-   * less useful name than AUDIOINFO for the same device */
-  if (!gst_oss4_property_probe_find_device_name (GST_OBJECT (oss), oss->fd,
-          oss->open_device, &oss->device_name)) {
-    oss->device_name = NULL;
-  }
-
-  /* list output routings, for informational purposes only so far */
-  {
-    oss_mixer_enuminfo routings = { 0, };
-    guint i;
-
-    if (ioctl (oss->fd, SNDCTL_DSP_GET_PLAYTGT_NAMES, &routings) != -1) {
-      GST_LOG_OBJECT (oss, "%u output routings (static list: %d)",
-          routings.nvalues, !!(routings.version == 0));
-      for (i = 0; i < routings.nvalues; ++i) {
-        GST_LOG_OBJECT (oss, "  output routing %d: %s", i,
-            &routings.strings[routings.strindex[i]]);
-      }
-    }
-  }
-
-  return TRUE;
-
-  /* ERRORS */
-busy:
-  {
-    if (!silent_errors) {
-      GST_ELEMENT_ERROR (oss, RESOURCE, BUSY,
-          (_("Could not open audio device for playback. "
-                  "Device is being used by another application.")), (NULL));
-    }
-    g_free (device);
-    return FALSE;
-  }
-no_permission:
-  {
-    if (!silent_errors) {
-      GST_ELEMENT_ERROR (oss, RESOURCE, OPEN_WRITE,
-          (_("Could not open audio device for playback. "
-                  "You don't have permission to open the device.")),
-          GST_ERROR_SYSTEM);
-    }
-    g_free (device);
-    return FALSE;
-  }
-open_failed:
-  {
-    if (!silent_errors) {
-      GST_ELEMENT_ERROR (oss, RESOURCE, OPEN_WRITE,
-          (_("Could not open audio device for playback.")), GST_ERROR_SYSTEM);
-    }
-    g_free (device);
-    return FALSE;
-  }
-legacy_oss:
-  {
-    if (!silent_errors) {
-      GST_ELEMENT_ERROR (oss, RESOURCE, OPEN_WRITE,
-          (_("Could not open audio device for playback. "
-                  "This version of the Open Sound System is not supported by this "
-                  "element.")), ("Try the 'osssink' element instead"));
-    }
-    gst_oss4_sink_close (asink);
-    g_free (device);
-    return FALSE;
-  }
-non_block:
-  {
-    if (!silent_errors) {
-      GST_ELEMENT_ERROR (oss, RESOURCE, SETTINGS, (NULL),
-          ("Unable to set device %s into non-blocking mode: %s",
-              oss->device, g_strerror (errno)));
-    }
-    g_free (device);
-    return FALSE;
-  }
-}
-
-static gboolean
-gst_oss4_sink_open_func (GstAudioSink * asink)
-{
-  return gst_oss4_sink_open (asink, FALSE);
-}
-
-static gboolean
-gst_oss4_sink_close (GstAudioSink * asink)
-{
-  GstOss4Sink *oss = GST_OSS4_SINK (asink);
-
-  if (oss->fd != -1) {
-    GST_DEBUG_OBJECT (oss, "closing device");
-    close (oss->fd);
-    oss->fd = -1;
-  }
-
-  oss->bytes_per_sample = 0;
-  /* we keep the probed caps cached, at least until the device changes */
-
-  g_free (oss->open_device);
-  oss->open_device = NULL;
-
-  g_free (oss->device_name);
-  oss->device_name = NULL;
-
-  if (oss->probed_caps) {
-    gst_caps_unref (oss->probed_caps);
-    oss->probed_caps = NULL;
-  }
-
-  return TRUE;
-}
-
-static gboolean
-gst_oss4_sink_prepare (GstAudioSink * asink, GstRingBufferSpec * spec)
-{
-  GstOss4Sink *oss;
-
-  oss = GST_OSS4_SINK (asink);
-
-  if (!gst_oss4_audio_set_format (GST_OBJECT_CAST (oss), oss->fd, spec)) {
-    GST_WARNING_OBJECT (oss, "Couldn't set requested format %" GST_PTR_FORMAT,
-        spec->caps);
-    return FALSE;
-  }
-
-  oss->bytes_per_sample = spec->bytes_per_sample;
-  return TRUE;
-}
-
-static gboolean
-gst_oss4_sink_unprepare (GstAudioSink * asink)
-{
-  /* could do a SNDCTL_DSP_HALT, but the OSS manual recommends a close/open,
-   * since HALT won't properly reset some devices, apparently */
-
-  if (!gst_oss4_sink_close (asink))
-    goto couldnt_close;
-
-  if (!gst_oss4_sink_open_func (asink))
-    goto couldnt_reopen;
-
-  return TRUE;
-
-  /* ERRORS */
-couldnt_close:
-  {
-    GST_DEBUG_OBJECT (asink, "Couldn't close the audio device");
-    return FALSE;
-  }
-couldnt_reopen:
-  {
-    GST_DEBUG_OBJECT (asink, "Couldn't reopen the audio device");
-    return FALSE;
-  }
-}
-
-static guint
-gst_oss4_sink_write (GstAudioSink * asink, gpointer data, guint length)
-{
-  GstOss4Sink *oss;
-  int n;
-
-  oss = GST_OSS4_SINK_CAST (asink);
-
-  n = write (oss->fd, data, length);
-  GST_LOG_OBJECT (asink, "wrote %d/%d samples, %d bytes",
-      n / oss->bytes_per_sample, length / oss->bytes_per_sample, n);
-
-  if (G_UNLIKELY (n < 0)) {
-    switch (errno) {
-      case ENOTSUP:
-      case EACCES:{
-        /* This is the most likely cause, I think */
-        GST_ELEMENT_ERROR (asink, RESOURCE, WRITE,
-            (_("Playback is not supported by this audio device.")),
-            ("write: %s (device: %s) (maybe this is an input-only device?)",
-                g_strerror (errno), oss->open_device));
-        break;
-      }
-      default:{
-        GST_ELEMENT_ERROR (asink, RESOURCE, WRITE,
-            (_("Audio playback error.")),
-            ("write: %s (device: %s)", g_strerror (errno), oss->open_device));
-        break;
-      }
-    }
-  }
-
-  return n;
-}
-
-static guint
-gst_oss4_sink_delay (GstAudioSink * asink)
-{
-  GstOss4Sink *oss;
-  gint delay = -1;
-
-  oss = GST_OSS4_SINK_CAST (asink);
-
-  GST_OBJECT_LOCK (oss);
-  if (ioctl (oss->fd, SNDCTL_DSP_GETODELAY, &delay) < 0 || delay < 0) {
-    GST_LOG_OBJECT (oss, "GETODELAY failed");
-  }
-  GST_OBJECT_UNLOCK (oss);
-
-  if (G_UNLIKELY (delay < 0))   /* error case */
-    return 0;
-
-  return delay / oss->bytes_per_sample;
-}
-
-static void
-gst_oss4_sink_reset (GstAudioSink * asink)
-{
-  /* There's nothing we can do here really: OSS can't handle access to the
-   * same device/fd from multiple threads and might deadlock or blow up in
-   * other ways if we try an ioctl SNDCTL_DSP_HALT or similar */
-}
-
-static void
-gst_oss4_sink_init_interfaces (GType type)
-{
-  static const GInterfaceInfo svol_iface_info = {
-    NULL, NULL, NULL
-  };
-
-  g_type_add_interface_static (type, GST_TYPE_STREAM_VOLUME, &svol_iface_info);
-
-  gst_oss4_add_property_probe_interface (type);
-}
diff --git a/sys/oss4/oss4-sink.h b/sys/oss4/oss4-sink.h
deleted file mode 100644
index b1489a7d8..000000000
--- a/sys/oss4/oss4-sink.h
+++ /dev/null
@@ -1,64 +0,0 @@
-/* GStreamer OSS4 audio sink
- * Copyright (C) 2007-2008 Tim-Philipp Müller <tim centricular net>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef GST_OSS4_SINK_H
-#define GST_OSS4_SINK_H
-
-
-#include <gst/gst.h>
-#include <gst/audio/gstaudiosink.h>
-
-G_BEGIN_DECLS
-
-#define GST_TYPE_OSS4_SINK            (gst_oss4_sink_get_type())
-#define GST_OSS4_SINK(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OSS4_SINK,GstOss4Sink))
-#define GST_OSS4_SINK_CAST(obj)       ((GstOss4Sink *)(obj))
-#define GST_OSS4_SINK_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OSS4_SINK,GstOss4SinkClass))
-#define GST_IS_OSS4_SINK(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OSS4_SINK))
-#define GST_IS_OSS4_SINK_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OSS4_SINK))
-
-typedef struct _GstOss4Sink GstOss4Sink;
-typedef struct _GstOss4SinkClass GstOss4SinkClass;
-
-struct _GstOss4Sink {
-  GstAudioSink  audio_sink;
-
-  gchar       * device;             /* NULL if none was set      */
-  gchar       * open_device;        /* the device we opened      */
-  gchar       * device_name;        /* set if the device is open */
-  gint          fd;                 /* -1 if not open            */
-  gint          bytes_per_sample;
-  gint          mute_volume;
-
-  GstCaps     * probed_caps;
-
-  GList       * property_probe_list;
-};
-
-struct _GstOss4SinkClass {
-  GstAudioSinkClass audio_sink_class;
-};
-
-GType  gst_oss4_sink_get_type (void);
-
-G_END_DECLS
-
-#endif /* GST_OSS4_SINK_H */
-
-
diff --git a/sys/oss4/oss4-soundcard.h b/sys/oss4/oss4-soundcard.h
deleted file mode 100644
index 8b124892b..000000000
--- a/sys/oss4/oss4-soundcard.h
+++ /dev/null
@@ -1,2067 +0,0 @@
-/*
- * Purpose: The C/C++ header file that defines the OSS API.
- * Description:
- * This header file contains all the declarations required to compile OSS
- * programs. The latest version is always installed together with OSS
- * use of the latest version is strongly recommended.
- *
- * {!notice This header file contains many obsolete definitions
- * (for compatibility with older applications that still ned them).
- * Do not use this file as a reference manual of OSS.
- * Please check the OSS Programmer's guide for descriptions
- * of the supported API details (http://manuals.opensound.com/developer).}
- */
-
-#ifndef SOUNDCARD_H
-#define SOUNDCARD_H
-
-#define COPYING40 Copyright (C) 4Front Technologies 2000-2006. Released under the BSD license.
-
-#if defined(__cplusplus)
-#define EXTERNC extern "C"
-#else
-#define EXTERNC extern
-#endif /* EXTERN_C_WRAPPERS */
-
-#define OSS_VERSION	0x040090 // Pre 4.1
-
-#define SOUND_VERSION	OSS_VERSION
-#define OPEN_SOUND_SYSTEM
-
-#if defined(__hpux) && !defined(_HPUX_SOURCE)
-#	error "-D_HPUX_SOURCE must be used when compiling OSS applications"
-#endif
-
-#ifdef __hpux
-#include <sys/ioctl.h>
-#endif
-
-#ifdef linux
-/* In Linux we need to be prepared for cross compiling */
-#include <linux/ioctl.h>
-#else
-# ifdef __FreeBSD__
-#    include <sys/ioccom.h>
-# else
-#    include <sys/ioctl.h>
-# endif
-#endif
-
-#ifndef __SIOWR
-#if defined(__hpux) || (defined(_IOWR) && (defined(_AIX) || (!defined(sun) && !defined(sparc) && !defined(__INCioctlh) && !defined(__Lynx__))))
-
-/* 
- * Make sure the ioctl macros are compatible with the ones already used
- * by this operating system.
- */
-#define	SIOCPARM_MASK	IOCPARM_MASK
-#define	SIOC_VOID	IOC_VOID
-#define	SIOC_OUT	IOC_OUT
-#define	SIOC_IN		IOC_IN
-#define	SIOC_INOUT	IOC_INOUT
-#define __SIOC_SIZE	_IOC_SIZE
-#define __SIOC_DIR	_IOC_DIR
-#define __SIOC_NONE	_IOC_NONE
-#define __SIOC_READ	_IOC_READ
-#define __SIOC_WRITE	_IOC_WRITE
-#define	__SIO		_IO
-#define	__SIOR		_IOR
-#define	__SIOW		_IOW
-#define	__SIOWR		_IOWR
-#else
-
-/* #define	SIOCTYPE		(0xff<<8) */
-#define	SIOCPARM_MASK	0x1fff	/* parameters must be < 8192 bytes */
-#define	SIOC_VOID	0x00000000	/* no parameters */
-#define	SIOC_OUT	0x20000000	/* copy out parameters */
-#define	SIOC_IN		0x40000000	/* copy in parameters */
-#define	SIOC_INOUT	(SIOC_IN|SIOC_OUT)
-
-#define	__SIO(x,y)	((int)(SIOC_VOID|(x<<8)|y))
-#define	__SIOR(x,y,t)	((int)(SIOC_OUT|((sizeof(t)&SIOCPARM_MASK)<<16)|(x<<8)|y))
-#define	__SIOW(x,y,t)	((int)(SIOC_IN|((sizeof(t)&SIOCPARM_MASK)<<16)|(x<<8)|y))
-#define	__SIOWR(x,y,t)	((int)(SIOC_INOUT|((sizeof(t)&SIOCPARM_MASK)<<16)|(x<<8)|y))
-#define __SIOC_SIZE(x)	((x>>16)&SIOCPARM_MASK)
-#define __SIOC_DIR(x)	(x & 0xf0000000)
-#define __SIOC_NONE	SIOC_VOID
-#define __SIOC_READ	SIOC_OUT
-#define __SIOC_WRITE	SIOC_IN
-#  endif /* _IOWR */
-#endif /* !__SIOWR */
-
-#define OSS_LONGNAME_SIZE	64
-#define OSS_LABEL_SIZE		16
-#define OSS_DEVNODE_SIZE	32
-typedef char oss_longname_t[OSS_LONGNAME_SIZE];
-typedef char oss_label_t[OSS_LABEL_SIZE];
-typedef char oss_devnode_t[OSS_DEVNODE_SIZE];
-
-#ifndef DISABLE_SEQUENCER
-/*
- ****************************************************************************
- * IOCTL Commands for /dev/sequencer and /dev/music (AKA /dev/sequencer2)
- *
- * Note that this interface is obsolete and no longer developed. New
- * applications should use /dev/midi instead.
- ****************************************************************************/
-#define SNDCTL_SEQ_RESET		__SIO  ('Q', 0)
-#define SNDCTL_SEQ_SYNC			__SIO  ('Q', 1)
-#define SNDCTL_SYNTH_INFO		__SIOWR('Q', 2, struct synth_info)
-#define SNDCTL_SEQ_CTRLRATE		__SIOWR('Q', 3, int)	/* Set/get timer resolution (HZ) */
-#define SNDCTL_SEQ_GETOUTCOUNT		__SIOR ('Q', 4, int)
-#define SNDCTL_SEQ_GETINCOUNT		__SIOR ('Q', 5, int)
-#define SNDCTL_SEQ_PERCMODE		__SIOW ('Q', 6, int)
-#define SNDCTL_FM_LOAD_INSTR		__SIOW ('Q', 7, struct sbi_instrument)	/* Obsolete. Don't use!!!!!! */
-#define SNDCTL_SEQ_TESTMIDI		__SIOW ('Q', 8, int)
-#define SNDCTL_SEQ_RESETSAMPLES		__SIOW ('Q', 9, int)
-#define SNDCTL_SEQ_NRSYNTHS		__SIOR ('Q',10, int)
-#define SNDCTL_SEQ_NRMIDIS		__SIOR ('Q',11, int)
-#define SNDCTL_MIDI_INFO		__SIOWR('Q',12, struct midi_info)	/* OBSOLETE - use SNDCTL_MIDIINFO instead */
-#define SNDCTL_SEQ_THRESHOLD		__SIOW ('Q',13, int)
-#define SNDCTL_SYNTH_MEMAVL		__SIOWR('Q',14, int)	/* in=dev#, out=memsize */
-#define SNDCTL_FM_4OP_ENABLE		__SIOW ('Q',15, int)	/* in=dev# */
-#define SNDCTL_SEQ_PANIC		__SIO  ('Q',17)
-#define SNDCTL_SEQ_OUTOFBAND		__SIOW ('Q',18, struct seq_event_rec)
-#define SNDCTL_SEQ_GETTIME		__SIOR ('Q',19, int)
-#define SNDCTL_SYNTH_ID			__SIOWR('Q',20, struct synth_info)
-#define SNDCTL_SYNTH_CONTROL		__SIOWR('Q',21, struct synth_control)
-#define SNDCTL_SYNTH_REMOVESAMPLE	__SIOWR('Q',22, struct remove_sample)	/* Reserved for future use */
-#define SNDCTL_SEQ_TIMING_ENABLE	__SIO  ('Q', 23)	/* Enable incoming MIDI timing messages */
-#define SNDCTL_SEQ_ACTSENSE_ENABLE	__SIO  ('Q', 24)	/* Enable incoming active sensing messages */
-#define SNDCTL_SEQ_RT_ENABLE		__SIO  ('Q', 25)	/* Enable other incoming realtime messages */
-
-typedef struct synth_control
-{
-  int devno;			/* Synthesizer # */
-  char data[4000];		/* Device spesific command/data record */
-} synth_control;
-
-typedef struct remove_sample
-{
-  int devno;			/* Synthesizer # */
-  int bankno;			/* MIDI bank # (0=General MIDI) */
-  int instrno;			/* MIDI instrument number */
-} remove_sample;
-
-typedef struct seq_event_rec
-{
-  unsigned char arr[8];
-} seq_event_rec;
-
-#define SNDCTL_TMR_TIMEBASE		__SIOWR('T', 1, int)
-#define SNDCTL_TMR_START		__SIO  ('T', 2)
-#define SNDCTL_TMR_STOP			__SIO  ('T', 3)
-#define SNDCTL_TMR_CONTINUE		__SIO  ('T', 4)
-#define SNDCTL_TMR_TEMPO		__SIOWR('T', 5, int)
-#define SNDCTL_TMR_SOURCE		__SIOWR('T', 6, int)
-#	define TMR_INTERNAL		0x00000001
-#	define TMR_EXTERNAL		0x00000002
-#		define TMR_MODE_MIDI	0x00000010
-#		define TMR_MODE_FSK	0x00000020
-#		define TMR_MODE_CLS	0x00000040
-#		define TMR_MODE_SMPTE	0x00000080
-#define SNDCTL_TMR_METRONOME		__SIOW ('T', 7, int)
-#define SNDCTL_TMR_SELECT		__SIOW ('T', 8, int)
-
-/*
- * Sample loading mechanism for internal synthesizers (/dev/sequencer)
- * (for the .PAT format).
- */
-
-struct patch_info
-{
-  unsigned short key;		/* Use WAVE_PATCH here */
-#define WAVE_PATCH	_PATCHKEY(0x04)
-#define GUS_PATCH	WAVE_PATCH
-#define WAVEFRONT_PATCH _PATCHKEY(0x06)
-
-  short device_no;		/* Synthesizer number */
-  short instr_no;		/* Midi pgm# */
-
-  unsigned int mode;
-/*
- * The least significant byte has the same format than the GUS .PAT
- * files
- */
-#define WAVE_16_BITS	0x01	/* bit 0 = 8 or 16 bit wave data. */
-#define WAVE_UNSIGNED	0x02	/* bit 1 = Signed - Unsigned data. */
-#define WAVE_LOOPING	0x04	/* bit 2 = looping enabled-1. */
-#define WAVE_BIDIR_LOOP	0x08	/* bit 3 = Set is bidirectional looping. */
-#define WAVE_LOOP_BACK	0x10	/* bit 4 = Set is looping backward. */
-#define WAVE_SUSTAIN_ON	0x20	/* bit 5 = Turn sustaining on. (Env. pts. 3) */
-#define WAVE_ENVELOPES	0x40	/* bit 6 = Enable envelopes - 1 */
-#define WAVE_FAST_RELEASE 0x80	/* bit 7 = Shut off immediately after note off */
-  /*  (use the env_rate/env_offs fields). */
-/* Linux specific bits */
-#define WAVE_VIBRATO	0x00010000	/* The vibrato info is valid */
-#define WAVE_TREMOLO	0x00020000	/* The tremolo info is valid */
-#define WAVE_SCALE	0x00040000	/* The scaling info is valid */
-#define WAVE_FRACTIONS	0x00080000	/* Fraction information is valid */
-/* Reserved bits */
-#define WAVE_ROM	0x40000000	/* For future use */
-#define WAVE_MULAW	0x20000000	/* For future use */
-/* Other bits must be zeroed */
-
-  int len;			/* Size of the wave data in bytes */
-  int loop_start, loop_end;	/* Byte offsets from the beginning */
-
-/* 
- * The base_freq and base_note fields are used when computing the
- * playback speed for a note. The base_note defines the tone frequency
- * which is heard if the sample is played using the base_freq as the
- * playback speed.
- *
- * The low_note and high_note fields define the minimum and maximum note
- * frequencies for which this sample is valid. It is possible to define
- * more than one samples for an instrument number at the same time. The
- * low_note and high_note fields are used to select the most suitable one.
- *
- * The fields base_note, high_note and low_note should contain
- * the note frequency multiplied by 1000. For example value for the
- * middle A is 440*1000.
- */
-
-  unsigned int base_freq;
-  unsigned int base_note;
-  unsigned int high_note;
-  unsigned int low_note;
-  int panning;			/* -128=left, 127=right */
-  int detuning;
-
-  /* Envelope. Enabled by mode bit WAVE_ENVELOPES  */
-  unsigned char env_rate[6];	/* GUS HW ramping rate */
-  unsigned char env_offset[6];	/* 255 == 100% */
-
-  /* 
-   * The tremolo, vibrato and scale info are not supported yet.
-   * Enable by setting the mode bits WAVE_TREMOLO, WAVE_VIBRATO or
-   * WAVE_SCALE
-   */
-
-  unsigned char tremolo_sweep;
-  unsigned char tremolo_rate;
-  unsigned char tremolo_depth;
-
-  unsigned char vibrato_sweep;
-  unsigned char vibrato_rate;
-  unsigned char vibrato_depth;
-
-  int scale_frequency;
-  unsigned int scale_factor;	/* from 0 to 2048 or 0 to 2 */
-
-  int volume;
-  int fractions;
-  int reserved1;
-  int spare[2];
-  char data[1];			/* The waveform data starts here */
-};
-
-struct sysex_info
-{
-  short key;			/* Use SYSEX_PATCH or MAUI_PATCH here */
-#define SYSEX_PATCH	_PATCHKEY(0x05)
-#define MAUI_PATCH	_PATCHKEY(0x06)
-  short device_no;		/* Synthesizer number */
-  int len;			/* Size of the sysex data in bytes */
-  unsigned char data[1];	/* Sysex data starts here */
-};
-
-/*
- * /dev/sequencer input events.
- *
- * The data written to the /dev/sequencer is a stream of events. Events
- * are records of 4 or 8 bytes. The first byte defines the size. 
- * Any number of events can be written with a write call. There
- * is a set of macros for sending these events. Use these macros if you
- * want to maximize portability of your program.
- *
- * Events SEQ_WAIT, SEQ_MIDIPUTC and SEQ_ECHO. Are also input events.
- * (All input events are currently 4 bytes long. Be prepared to support
- * 8 byte events also. If you receive any event having first byte >= 128,
- * it's a 8 byte event.
- *
- * The events are documented at the end of this file.
- *
- * Normal events (4 bytes)
- * There is also a 8 byte version of most of the 4 byte events. The
- * 8 byte one is recommended.
- *
- * NOTE! All 4 byte events are now obsolete. Applications should not write
- *       them. However 4 byte events are still used as inputs from
- *       /dev/sequencer (/dev/music uses only 8 byte ones).
- */
-#define SEQ_NOTEOFF		0
-#define SEQ_FMNOTEOFF		SEQ_NOTEOFF	/* Just old name */
-#define SEQ_NOTEON		1
-#define	SEQ_FMNOTEON		SEQ_NOTEON
-#define SEQ_WAIT		TMR_WAIT_ABS
-#define SEQ_PGMCHANGE		3
-#define SEQ_FMPGMCHANGE		SEQ_PGMCHANGE
-#define SEQ_SYNCTIMER		TMR_START
-#define SEQ_MIDIPUTC		5
-#define SEQ_DRUMON		6		/*** OBSOLETE ***/
-#define SEQ_DRUMOFF		7		/*** OBSOLETE ***/
-#define SEQ_ECHO		TMR_ECHO	/* For synching programs with output */
-#define SEQ_AFTERTOUCH		9
-#define SEQ_CONTROLLER		10
-#define SEQ_BALANCE		11
-#define SEQ_VOLMODE             12
-
-/************************************
- *	Midi controller numbers	    *
- ************************************/
-/*
- * Controllers 0 to 31 (0x00 to 0x1f) and
- * 32 to 63 (0x20 to 0x3f) are continuous
- * controllers.
- * In the MIDI 1.0 these controllers are sent using
- * two messages. Controller numbers 0 to 31 are used
- * to send the MSB and the controller numbers 32 to 63
- * are for the LSB. Note that just 7 bits are used in MIDI bytes.
- */
-
-#define	   CTL_BANK_SELECT		0x00
-#define	   CTL_MODWHEEL			0x01
-#define    CTL_BREATH			0x02
-/*		undefined		0x03 */
-#define    CTL_FOOT			0x04
-#define    CTL_PORTAMENTO_TIME		0x05
-#define    CTL_DATA_ENTRY		0x06
-#define    CTL_MAIN_VOLUME		0x07
-#define    CTL_BALANCE			0x08
-/*		undefined		0x09 */
-#define    CTL_PAN			0x0a
-#define    CTL_EXPRESSION		0x0b
-/*		undefined		0x0c */
-/*		undefined		0x0d */
-/*		undefined		0x0e */
-/*		undefined		0x0f */
-#define    CTL_GENERAL_PURPOSE1		0x10
-#define    CTL_GENERAL_PURPOSE2		0x11
-#define    CTL_GENERAL_PURPOSE3		0x12
-#define    CTL_GENERAL_PURPOSE4		0x13
-/*		undefined		0x14 - 0x1f */
-
-/*		undefined		0x20 */
-/* The controller numbers 0x21 to 0x3f are reserved for the */
-/* least significant bytes of the controllers 0x00 to 0x1f. */
-/* These controllers are not recognised by the driver. */
-
-/* Controllers 64 to 69 (0x40 to 0x45) are on/off switches. */
-/* 0=OFF and 127=ON (intermediate values are possible) */
-#define    CTL_DAMPER_PEDAL		0x40
-#define    CTL_SUSTAIN			0x40	/* Alias */
-#define    CTL_HOLD			0x40	/* Alias */
-#define    CTL_PORTAMENTO		0x41
-#define    CTL_SOSTENUTO		0x42
-#define    CTL_SOFT_PEDAL		0x43
-/*		undefined		0x44 */
-#define    CTL_HOLD2			0x45
-/*		undefined		0x46 - 0x4f */
-
-#define    CTL_GENERAL_PURPOSE5		0x50
-#define    CTL_GENERAL_PURPOSE6		0x51
-#define    CTL_GENERAL_PURPOSE7		0x52
-#define    CTL_GENERAL_PURPOSE8		0x53
-/*		undefined		0x54 - 0x5a */
-#define    CTL_EXT_EFF_DEPTH		0x5b
-#define    CTL_TREMOLO_DEPTH		0x5c
-#define    CTL_CHORUS_DEPTH		0x5d
-#define    CTL_DETUNE_DEPTH		0x5e
-#define    CTL_CELESTE_DEPTH		0x5e	/* Alias for the above one */
-#define    CTL_PHASER_DEPTH		0x5f
-#define    CTL_DATA_INCREMENT		0x60
-#define    CTL_DATA_DECREMENT		0x61
-#define    CTL_NONREG_PARM_NUM_LSB	0x62
-#define    CTL_NONREG_PARM_NUM_MSB	0x63
-#define    CTL_REGIST_PARM_NUM_LSB	0x64
-#define    CTL_REGIST_PARM_NUM_MSB	0x65
-/*		undefined		0x66 - 0x78 */
-/*		reserved		0x79 - 0x7f */
-
-/* Pseudo controllers (not midi compatible) */
-#define    CTRL_PITCH_BENDER		255
-#define    CTRL_PITCH_BENDER_RANGE	254
-#define    CTRL_EXPRESSION		253	/* Obsolete */
-#define    CTRL_MAIN_VOLUME		252	/* Obsolete */
-
-/*
- * Volume mode defines how volumes are used
- */
-
-#define VOL_METHOD_ADAGIO	1
-#define VOL_METHOD_LINEAR	2
-
-/*
- * Note! SEQ_WAIT, SEQ_MIDIPUTC and SEQ_ECHO are used also as
- *	 input events.
- */
-
-/*
- * Event codes 0xf0 to 0xfc are reserved for future extensions.
- */
-
-#define SEQ_FULLSIZE		0xfd	/* Long events */
-/*
- * SEQ_FULLSIZE events are used for loading patches/samples to the
- * synthesizer devices. These events are passed directly to the driver
- * of the associated synthesizer device. There is no limit to the size
- * of the extended events. These events are not queued but executed
- * immediately when the write() is called (execution can take several
- * seconds of time). 
- *
- * When a SEQ_FULLSIZE message is written to the device, it must
- * be written using exactly one write() call. Other events cannot
- * be mixed to the same write.
- *	
- * For FM synths (YM3812/OPL3) use struct sbi_instrument and write it to the 
- * /dev/sequencer. Don't write other data together with the instrument structure
- * Set the key field of the structure to FM_PATCH. The device field is used to
- * route the patch to the corresponding device.
- *
- * For wave table use struct patch_info. Initialize the key field
- * to WAVE_PATCH.
- */
-#define SEQ_PRIVATE		0xfe	/* Low level HW dependent events (8 bytes) */
-#define SEQ_EXTENDED		0xff	/* Extended events (8 bytes) OBSOLETE */
-
-/*
- * Record for FM patches
- */
-
-typedef unsigned char sbi_instr_data[32];
-
-struct sbi_instrument
-{
-  unsigned short key;		/* FM_PATCH or OPL3_PATCH */
-#define FM_PATCH	_PATCHKEY(0x01)
-#define OPL3_PATCH	_PATCHKEY(0x03)
-  short device;			/*  Synth# (0-4)    */
-  int channel;			/*  Program# to be initialized  */
-  sbi_instr_data operators;	/*  Register settings for operator cells (.SBI format)  */
-};
-
-struct synth_info
-{				/* Read only */
-  char name[30];
-  int device;			/* 0-N. INITIALIZE BEFORE CALLING */
-  int synth_type;
-#define SYNTH_TYPE_FM			0
-#define SYNTH_TYPE_SAMPLE		1
-#define SYNTH_TYPE_MIDI			2	/* Midi interface */
-
-  int synth_subtype;
-#define FM_TYPE_ADLIB			0x00
-#define FM_TYPE_OPL3			0x01
-#define MIDI_TYPE_MPU401		0x401
-
-#define SAMPLE_TYPE_BASIC		0x10
-#define SAMPLE_TYPE_GUS			SAMPLE_TYPE_BASIC
-#define SAMPLE_TYPE_WAVEFRONT   	0x11
-
-  int perc_mode;		/* No longer supported */
-  int nr_voices;
-  int nr_drums;			/* Obsolete field */
-  int instr_bank_size;
-  unsigned int capabilities;
-#define SYNTH_CAP_PERCMODE	0x00000001	/* No longer used */
-#define SYNTH_CAP_OPL3		0x00000002	/* Set if OPL3 supported */
-#define SYNTH_CAP_INPUT		0x00000004	/* Input (MIDI) device */
-  int dummies[19];		/* Reserve space */
-};
-
-struct sound_timer_info
-{
-  char name[32];
-  int caps;
-};
-
-struct midi_info		/* OBSOLETE */
-{
-  char name[30];
-  int device;			/* 0-N. INITIALIZE BEFORE CALLING */
-  unsigned int capabilities;	/* To be defined later */
-  int dev_type;
-  int dummies[18];		/* Reserve space */
-};
-
-/*
- * Level 2 event types for /dev/sequencer
- */
-
-/*
- * The 4 most significant bits of byte 0 specify the class of
- * the event: 
- *
- *	0x8X = system level events,
- *	0x9X = device/port specific events, event[1] = device/port,
- *		The last 4 bits give the subtype:
- *			0x02	= Channel event (event[3] = chn).
- *			0x01	= note event (event[4] = note).
- *			(0x01 is not used alone but always with bit 0x02).
- *	       event[2] = MIDI message code (0x80=note off etc.)
- *
- */
-
-#define EV_SEQ_LOCAL		0x80
-#define EV_TIMING		0x81
-#define EV_CHN_COMMON		0x92
-#define EV_CHN_VOICE		0x93
-#define EV_SYSEX		0x94
-#define EV_SYSTEM		0x95	/* MIDI system and real time messages (input only) */
-/*
- * Event types 200 to 220 are reserved for application use.
- * These numbers will not be used by the driver.
- */
-
-/*
- * Events for event type EV_CHN_VOICE
- */
-
-#define MIDI_NOTEOFF		0x80
-#define MIDI_NOTEON		0x90
-#define MIDI_KEY_PRESSURE	0xA0
-
-/*
- * Events for event type EV_CHN_COMMON
- */
-
-#define MIDI_CTL_CHANGE		0xB0
-#define MIDI_PGM_CHANGE		0xC0
-#define MIDI_CHN_PRESSURE	0xD0
-#define MIDI_PITCH_BEND		0xE0
-
-#define MIDI_SYSTEM_PREFIX	0xF0
-
-/*
- * Timer event types
- */
-#define TMR_WAIT_REL		1	/* Time relative to the prev time */
-#define TMR_WAIT_ABS		2	/* Absolute time since TMR_START */
-#define TMR_STOP		3
-#define TMR_START		4
-#define TMR_CONTINUE		5
-#define TMR_TEMPO		6
-#define TMR_ECHO		8
-#define TMR_CLOCK		9	/* MIDI clock */
-#define TMR_SPP			10	/* Song position pointer */
-#define TMR_TIMESIG		11	/* Time signature */
-
-/*
- *	Local event types
- */
-#define LOCL_STARTAUDIO		1
-#define LOCL_STARTAUDIO2	2
-#define LOCL_STARTAUDIO3	3
-#define LOCL_STARTAUDIO4	4
-
-#if (!defined(__KERNEL__) && !defined(KERNEL) && !defined(INKERNEL) && !defined(_KERNEL)) || defined(USE_SEQ_MACROS)
-/*
- * Some convenience macros to simplify programming of the
- * /dev/sequencer interface
- *
- * These macros define the API which should be used when possible.
- */
-#define SEQ_DECLAREBUF()		SEQ_USE_EXTBUF()
-
-void seqbuf_dump (void);	/* This function must be provided by programs */
-
-EXTERNC int OSS_init (int seqfd, int buflen);
-EXTERNC void OSS_seqbuf_dump (int fd, unsigned char *buf, int buflen);
-EXTERNC void OSS_seq_advbuf (int len, int fd, unsigned char *buf, int buflen);
-EXTERNC void OSS_seq_needbuf (int len, int fd, unsigned char *buf,
-			      int buflen);
-EXTERNC void OSS_patch_caching (int dev, int chn, int patch, int fd,
-				unsigned char *buf, int buflen);
-EXTERNC void OSS_drum_caching (int dev, int chn, int patch, int fd,
-			       unsigned char *buf, int buflen);
-EXTERNC void OSS_write_patch (int fd, unsigned char *buf, int len);
-EXTERNC int OSS_write_patch2 (int fd, unsigned char *buf, int len);
-
-#define SEQ_PM_DEFINES int __foo_bar___
-#ifdef OSSLIB
-#  define SEQ_USE_EXTBUF() \
-		EXTERNC unsigned char *_seqbuf; \
-		EXTERNC int _seqbuflen;EXTERNC int _seqbufptr
-#  define SEQ_DEFINEBUF(len) SEQ_USE_EXTBUF();static int _requested_seqbuflen=len
-#  define _SEQ_ADVBUF(len) OSS_seq_advbuf(len, seqfd, _seqbuf, _seqbuflen)
-#  define _SEQ_NEEDBUF(len) OSS_seq_needbuf(len, seqfd, _seqbuf, _seqbuflen)
-#  define SEQ_DUMPBUF() OSS_seqbuf_dump(seqfd, _seqbuf, _seqbuflen)
-
-#  define SEQ_LOAD_GMINSTR(dev, instr) \
-		OSS_patch_caching(dev, -1, instr, seqfd, _seqbuf, _seqbuflen)
-#  define SEQ_LOAD_GMDRUM(dev, drum) \
-		OSS_drum_caching(dev, -1, drum, seqfd, _seqbuf, _seqbuflen)
-#else /* !OSSLIB */
-
-#  define SEQ_LOAD_GMINSTR(dev, instr)
-#  define SEQ_LOAD_GMDRUM(dev, drum)
-
-#  define SEQ_USE_EXTBUF() \
-		EXTERNC unsigned char _seqbuf[]; \
-		EXTERNC int _seqbuflen;EXTERNC int _seqbufptr
-
-#ifndef USE_SIMPLE_MACROS
-/* Sample seqbuf_dump() implementation:
- *
- *	SEQ_DEFINEBUF (2048);	-- Defines a buffer for 2048 bytes
- *
- *	int seqfd;		-- The file descriptor for /dev/sequencer.
- *
- *	void
- *	seqbuf_dump ()
- *	{
- *	  if (_seqbufptr)
- *	    if (write (seqfd, _seqbuf, _seqbufptr) == -1)
- *	      {
- *		perror ("write /dev/sequencer");
- *		exit (-1);
- *	      }
- *	  _seqbufptr = 0;
- *	}
- */
-
-#define SEQ_DEFINEBUF(len) \
-	unsigned char _seqbuf[len]; int _seqbuflen = len;int _seqbufptr = 0
-#define _SEQ_NEEDBUF(len) \
-	if ((_seqbufptr+(len)) > _seqbuflen) seqbuf_dump()
-#define _SEQ_ADVBUF(len) _seqbufptr += len
-#define SEQ_DUMPBUF seqbuf_dump
-#else
-/*
- * This variation of the sequencer macros is used just to format one event
- * using fixed buffer.
- * 
- * The program using the macro library must define the following macros before
- * using this library.
- *
- * #define _seqbuf 		 name of the buffer (unsigned char[]) 
- * #define _SEQ_ADVBUF(len)	 If the applic needs to know the exact
- *				 size of the event, this macro can be used.
- *				 Otherwise this must be defined as empty.
- * #define _seqbufptr		 Define the name of index variable or 0 if
- *				 not required. 
- */
-#define _SEQ_NEEDBUF(len)	/* empty */
-#endif
-#endif /* !OSSLIB */
-
-#define SEQ_VOLUME_MODE(dev, mode) \
-				{_SEQ_NEEDBUF(8);\
-				_seqbuf[_seqbufptr] = SEQ_EXTENDED;\
-				_seqbuf[_seqbufptr+1] = SEQ_VOLMODE;\
-				_seqbuf[_seqbufptr+2] = (dev);\
-				_seqbuf[_seqbufptr+3] = (mode);\
-				_seqbuf[_seqbufptr+4] = 0;\
-				_seqbuf[_seqbufptr+5] = 0;\
-				_seqbuf[_seqbufptr+6] = 0;\
-				_seqbuf[_seqbufptr+7] = 0;\
-				_SEQ_ADVBUF(8);}
-
-/*
- * Midi voice messages
- */
-
-#define _CHN_VOICE(dev, event, chn, note, parm) \
-				{_SEQ_NEEDBUF(8);\
-				_seqbuf[_seqbufptr] = EV_CHN_VOICE;\
-				_seqbuf[_seqbufptr+1] = (dev);\
-				_seqbuf[_seqbufptr+2] = (event);\
-				_seqbuf[_seqbufptr+3] = (chn);\
-				_seqbuf[_seqbufptr+4] = (note);\
-				_seqbuf[_seqbufptr+5] = (parm);\
-				_seqbuf[_seqbufptr+6] = (0);\
-				_seqbuf[_seqbufptr+7] = 0;\
-				_SEQ_ADVBUF(8);}
-
-#define SEQ_START_NOTE(dev, chn, note, vol) \
-			_CHN_VOICE(dev, MIDI_NOTEON, chn, note, vol)
-
-#define SEQ_STOP_NOTE(dev, chn, note, vol) \
-			_CHN_VOICE(dev, MIDI_NOTEOFF, chn, note, vol)
-
-#define SEQ_KEY_PRESSURE(dev, chn, note, pressure) \
-			_CHN_VOICE(dev, MIDI_KEY_PRESSURE, chn, note, pressure)
-
-/*
- * Midi channel messages
- */
-
-#define _CHN_COMMON(dev, event, chn, p1, p2, w14) \
-				{_SEQ_NEEDBUF(8);\
-				_seqbuf[_seqbufptr] = EV_CHN_COMMON;\
-				_seqbuf[_seqbufptr+1] = (dev);\
-				_seqbuf[_seqbufptr+2] = (event);\
-				_seqbuf[_seqbufptr+3] = (chn);\
-				_seqbuf[_seqbufptr+4] = (p1);\
-				_seqbuf[_seqbufptr+5] = (p2);\
-				*(short *)&_seqbuf[_seqbufptr+6] = (w14);\
-				_SEQ_ADVBUF(8);}
-/*
- * SEQ_SYSEX permits sending of sysex messages. (It may look that it permits
- * sending any MIDI bytes but it's absolutely not possible. Trying to do
- * so _will_ cause problems with MPU401 intelligent mode).
- *
- * Sysex messages are sent in blocks of 1 to 6 bytes. Longer messages must be 
- * sent by calling SEQ_SYSEX() several times (there must be no other events
- * between them). First sysex fragment must have 0xf0 in the first byte
- * and the last byte (buf[len-1] of the last fragment must be 0xf7. No byte
- * between these sysex start and end markers cannot be larger than 0x7f. Also
- * lengths of each fragments (except the last one) must be 6.
- *
- * Breaking the above rules may work with some MIDI ports but is likely to
- * cause fatal problems with some other devices (such as MPU401).
- */
-#define SEQ_SYSEX(dev, buf, len) \
-				{int ii, ll=(len); \
-				 unsigned char *bufp=buf;\
-				 if (ll>6)ll=6;\
-				_SEQ_NEEDBUF(8);\
-				_seqbuf[_seqbufptr] = EV_SYSEX;\
-				_seqbuf[_seqbufptr+1] = (dev);\
-				for(ii=0;ii<ll;ii++)\
-				   _seqbuf[_seqbufptr+ii+2] = bufp[ii];\
-				for(ii=ll;ii<6;ii++)\
-				   _seqbuf[_seqbufptr+ii+2] = 0xff;\
-				_SEQ_ADVBUF(8);}
-
-#define SEQ_CHN_PRESSURE(dev, chn, pressure) \
-		_CHN_COMMON(dev, MIDI_CHN_PRESSURE, chn, pressure, 0, 0)
-
-#define SEQ_SET_PATCH SEQ_PGM_CHANGE
-#ifdef OSSLIB
-#   define SEQ_PGM_CHANGE(dev, chn, patch) \
-		{OSS_patch_caching(dev, chn, patch, seqfd, _seqbuf, _seqbuflen); \
-		 _CHN_COMMON(dev, MIDI_PGM_CHANGE, chn, patch, 0, 0);}
-#else
-#   define SEQ_PGM_CHANGE(dev, chn, patch) \
-		_CHN_COMMON(dev, MIDI_PGM_CHANGE, chn, patch, 0, 0)
-#endif
-
-#define SEQ_CONTROL(dev, chn, controller, value) \
-		_CHN_COMMON(dev, MIDI_CTL_CHANGE, chn, controller, 0, value)
-
-#define SEQ_BENDER(dev, chn, value) \
-		_CHN_COMMON(dev, MIDI_PITCH_BEND, chn, 0, 0, value)
-
-#define SEQ_V2_X_CONTROL(dev, voice, controller, value)	\
-				{_SEQ_NEEDBUF(8);\
-				_seqbuf[_seqbufptr] = SEQ_EXTENDED;\
-				_seqbuf[_seqbufptr+1] = SEQ_CONTROLLER;\
-				_seqbuf[_seqbufptr+2] = (dev);\
-				_seqbuf[_seqbufptr+3] = (voice);\
-				_seqbuf[_seqbufptr+4] = (controller);\
-				_seqbuf[_seqbufptr+5] = ((value)&0xff);\
-				_seqbuf[_seqbufptr+6] = ((value>>8)&0xff);\
-				_seqbuf[_seqbufptr+7] = 0;\
-				_SEQ_ADVBUF(8);}
-/*
- * The following 5 macros are incorrectly implemented and obsolete.
- * Use SEQ_BENDER and SEQ_CONTROL (with proper controller) instead.
- */
-#define SEQ_PITCHBEND(dev, voice, value) \
-	SEQ_V2_X_CONTROL(dev, voice, CTRL_PITCH_BENDER, value)
-#define SEQ_BENDER_RANGE(dev, voice, value) \
-	SEQ_V2_X_CONTROL(dev, voice, CTRL_PITCH_BENDER_RANGE, value)
-#define SEQ_EXPRESSION(dev, voice, value) \
-	SEQ_CONTROL(dev, voice, CTL_EXPRESSION, value*128)
-#define SEQ_MAIN_VOLUME(dev, voice, value) \
-	SEQ_CONTROL(dev, voice, CTL_MAIN_VOLUME, (value*16383)/100)
-#define SEQ_PANNING(dev, voice, pos) \
-	SEQ_CONTROL(dev, voice, CTL_PAN, (pos+128) / 2)
-
-/*
- * Timing and syncronization macros
- */
-
-#define _TIMER_EVENT(ev, parm)	{_SEQ_NEEDBUF(8);\
-			 	_seqbuf[_seqbufptr+0] = EV_TIMING; \
-			 	_seqbuf[_seqbufptr+1] = (ev); \
-				_seqbuf[_seqbufptr+2] = 0;\
-				_seqbuf[_seqbufptr+3] = 0;\
-			 	*(unsigned int *)&_seqbuf[_seqbufptr+4] = (parm); \
-				_SEQ_ADVBUF(8);}
-
-#define SEQ_START_TIMER()		_TIMER_EVENT(TMR_START, 0)
-#define SEQ_STOP_TIMER()		_TIMER_EVENT(TMR_STOP, 0)
-#define SEQ_CONTINUE_TIMER()		_TIMER_EVENT(TMR_CONTINUE, 0)
-#define SEQ_WAIT_TIME(ticks)		_TIMER_EVENT(TMR_WAIT_ABS, ticks)
-#define SEQ_DELTA_TIME(ticks)		_TIMER_EVENT(TMR_WAIT_REL, ticks)
-#define SEQ_ECHO_BACK(key)		_TIMER_EVENT(TMR_ECHO, key)
-#define SEQ_SET_TEMPO(value)		_TIMER_EVENT(TMR_TEMPO, value)
-#define SEQ_SONGPOS(pos)		_TIMER_EVENT(TMR_SPP, pos)
-#define SEQ_TIME_SIGNATURE(sig)		_TIMER_EVENT(TMR_TIMESIG, sig)
-
-/*
- * Local control events
- */
-
-#define _LOCAL_EVENT(ev, parm)		{_SEQ_NEEDBUF(8);\
-				 	_seqbuf[_seqbufptr+0] = EV_SEQ_LOCAL; \
-				 	_seqbuf[_seqbufptr+1] = (ev); \
-					_seqbuf[_seqbufptr+2] = 0;\
-					_seqbuf[_seqbufptr+3] = 0;\
-				 	*(unsigned int *)&_seqbuf[_seqbufptr+4] = (parm); \
-					_SEQ_ADVBUF(8);}
-
-#define SEQ_PLAYAUDIO(devmask)		_LOCAL_EVENT(LOCL_STARTAUDIO, devmask)
-#define SEQ_PLAYAUDIO2(devmask)		_LOCAL_EVENT(LOCL_STARTAUDIO2, devmask)
-#define SEQ_PLAYAUDIO3(devmask)		_LOCAL_EVENT(LOCL_STARTAUDIO3, devmask)
-#define SEQ_PLAYAUDIO4(devmask)		_LOCAL_EVENT(LOCL_STARTAUDIO4, devmask)
-/*
- * Events for the level 1 interface only 
- */
-
-#define SEQ_MIDIOUT(device, byte)	{_SEQ_NEEDBUF(4);\
-					_seqbuf[_seqbufptr] = SEQ_MIDIPUTC;\
-					_seqbuf[_seqbufptr+1] = (byte);\
-					_seqbuf[_seqbufptr+2] = (device);\
-					_seqbuf[_seqbufptr+3] = 0;\
-					_SEQ_ADVBUF(4);}
-
-/*
- * Patch loading.
- */
-#ifdef OSSLIB
-#   define SEQ_WRPATCH(patchx, len) \
-		OSS_write_patch(seqfd, (char*)(patchx), len)
-#   define SEQ_WRPATCH2(patchx, len) \
-		OSS_write_patch2(seqfd, (char*)(patchx), len)
-#else
-#   define SEQ_WRPATCH(patchx, len) \
-		{if (_seqbufptr) SEQ_DUMPBUF();\
-		 if (write(seqfd, (char*)(patchx), len)==-1) \
-		    perror("Write patch: /dev/sequencer");}
-#   define SEQ_WRPATCH2(patchx, len) \
-		(SEQ_DUMPBUF(), write(seqfd, (char*)(patchx), len))
-#endif
-
-#endif
-#endif /* ifndef DISABLE_SEQUENCER */
-
-/*
- ****************************************************************************
- * ioctl commands for the /dev/midi## 
- ****************************************************************************/
-#define SNDCTL_MIDI_PRETIME	__SIOWR('m', 0, int)
-
-#if 0
-/*
- * The SNDCTL_MIDI_MPUMODE and SNDCTL_MIDI_MPUCMD calls
- * are completely obsolete. The hardware device (MPU-401 "intelligent mode"
- * and compatibles) has disappeared from the market 10 years ago so there 
- * is no need for this stuff. The MPU-401 "UART" mode devices don't support
- * this stuff.
- */
-typedef struct
-{
-  unsigned char cmd;
-  char nr_args, nr_returns;
-  unsigned char data[30];
-} mpu_command_rec;
-
-#define SNDCTL_MIDI_MPUMODE	__SIOWR('m', 1, int)
-#define SNDCTL_MIDI_MPUCMD	__SIOWR('m', 2, mpu_command_rec)
-#endif
-
-/*
- * SNDCTL_MIDI_MTCINPUT turns on a mode where OSS automatically inserts
- * MTC quarter frame messages (F1 xx) to the input.
- * The argument is the MTC mode:
- *
- * 	-1 = Turn MTC messages OFF (default)
- *	24 = 24 FPS 
- *	25 = 25 FPS 
- *	29 = 30 FPS drop frame
- *	30 = 30 FPS 
- *
- * Note that 25 FPS mode is probably the only mode that is supported. Other
- * modes may be supported in the future versions of OSS, 25 FPS is handy 
- * because it generates 25*4=100 quarter frame messages per second which
- * matches the usual 100 HZ system timer rate).
- *
- * The quarter frame timer will be reset to 0:00:00:00.0 at the moment this
- * ioctl is made.
- */
-#define SNDCTL_MIDI_MTCINPUT	__SIOWR('m', 3, int)
-
-/*
- * MTC/SMPTE time code record (for future use)
- */
-typedef struct
-{
-  unsigned char hours, minutes, seconds, frames, qframes;
-  char direction;
-#define MTC_DIR_STOPPED		 0
-#define MTC_DIR_FORWARD		 1
-#define MTC_DIR_BACKWARD	-1
-  unsigned char time_code_type;
-  unsigned int flags;
-} oss_mtc_data_t;
-
-#define SNDCTL_MIDI_SETMODE	__SIOWR('m', 6, int)
-#	define MIDI_MODE_TRADITIONAL	0
-#	define MIDI_MODE_TIMED		1	/* Input times are in MIDI ticks */
-#	define MIDI_MODE_TIMED_ABS  	2	/* Input times are absolute (usecs) */
-
-/*
- * Packet header for MIDI_MODE_TIMED and MIDI_MODE_TIMED_ABS
- */
-typedef unsigned long long oss_midi_time_t;	/* Variable type for MIDI time (clock ticks) */
-
-typedef struct
-{
-  int magic;			/* Initialize to MIDI_HDR_MAGIC */
-#define MIDI_HDR_MAGIC	-1
-  unsigned short event_type;
-#define MIDI_EV_WRITE			0	/* Write or read (with payload) */
-#define MIDI_EV_TEMPO			1
-#define MIDI_EV_ECHO			2
-#define MIDI_EV_START			3
-#define MIDI_EV_STOP			4
-#define MIDI_EV_CONTINUE		5
-#define MIDI_EV_XPRESSWRITE		6
-#define MIDI_EV_TIMEBASE		7
-#define MIDI_EV_DEVCTL			8	/* Device control read/write */
-  unsigned short options;
-#define MIDI_OPT_NONE			0x0000
-#define MIDI_OPT_TIMED			0x0001
-#define MIDI_OPT_CONTINUATION		0x0002
-#define MIDI_OPT_USECTIME		0x0004	/* Time is absolute (in usecs) */
-#define MIDI_OPT_BUSY			0x0008	/* Reserved for internal use */
-  oss_midi_time_t time;
-  int parm;
-  int filler[3];		/* Fur future expansion - init to zeros */
-} midi_packet_header_t;
-/* 
- * MIDI_PAYLOAD_SIZE is the maximum size of one MIDI input chunk. It must be
- * less (or equal) than 1024 which is the read size recommended in the 
- * documentation. TODO: Explain this better.
- */
-#define MIDI_PAYLOAD_SIZE		1000
-
-typedef struct
-{
-  midi_packet_header_t hdr;
-  unsigned char payload[MIDI_PAYLOAD_SIZE];
-} midi_packet_t;
-
-#define SNDCTL_MIDI_TIMEBASE		__SIOWR('m', 7, int)
-#define SNDCTL_MIDI_TEMPO		__SIOWR('m', 8, int)
-/*
- * User land MIDI servers (synths) can use SNDCTL_MIDI_SET_LATENCY
- * to request MIDI events to be sent to them in advance. The parameter
- * (in microseconds) tells how much before the events are submitted.
- *
- * This feature is only valid for loopback devices and possibly some other
- * types of virtual devices.
- */
-#define SNDCTL_MIDI_SET_LATENCY		__SIOW ('m', 9, int)
-/*
- ****************************************************************************
- * IOCTL commands for /dev/dsp
- ****************************************************************************/
-
-#define SNDCTL_DSP_HALT			__SIO  ('P', 0)
-#define SNDCTL_DSP_RESET		SNDCTL_DSP_HALT	/* Old name */
-#define SNDCTL_DSP_SYNC			__SIO  ('P', 1)
-#define SNDCTL_DSP_SPEED		__SIOWR('P', 2, int)
-
-/* SNDCTL_DSP_STEREO is obsolete - use SNDCTL_DSP_CHANNELS instead */
-#define SNDCTL_DSP_STEREO		__SIOWR('P', 3, int)
-/* SNDCTL_DSP_STEREO is obsolete - use SNDCTL_DSP_CHANNELS instead */
-
-#define SNDCTL_DSP_GETBLKSIZE		__SIOWR('P', 4, int)
-#define SNDCTL_DSP_SAMPLESIZE		SNDCTL_DSP_SETFMT
-#define SNDCTL_DSP_CHANNELS		__SIOWR('P', 6, int)
-#define SNDCTL_DSP_POST			__SIO  ('P', 8)
-#define SNDCTL_DSP_SUBDIVIDE		__SIOWR('P', 9, int)
-#define SNDCTL_DSP_SETFRAGMENT		__SIOWR('P',10, int)
-
-/* Audio data formats (Note! U8=8 and S16_LE=16 for compatibility) */
-#define SNDCTL_DSP_GETFMTS		__SIOR ('P',11, int)	/* Returns a mask */
-#define SNDCTL_DSP_SETFMT		__SIOWR('P',5, int)	/* Selects ONE fmt */
-#	define AFMT_QUERY	0x00000000	/* Return current fmt */
-#	define AFMT_MU_LAW	0x00000001
-#	define AFMT_A_LAW	0x00000002
-#	define AFMT_IMA_ADPCM	0x00000004
-#	define AFMT_U8		0x00000008
-#	define AFMT_S16_LE	0x00000010	/* Little endian signed 16 */
-#	define AFMT_S16_BE	0x00000020	/* Big endian signed 16 */
-#	define AFMT_S8		0x00000040
-#	define AFMT_U16_LE	0x00000080	/* Little endian U16 */
-#	define AFMT_U16_BE	0x00000100	/* Big endian U16 */
-#	define AFMT_MPEG	0x00000200	/* MPEG (2) audio */
-
-/* AC3 _compressed_ bitstreams (See Programmer's Guide for details). */
-#	define AFMT_AC3		0x00000400
-/* Ogg Vorbis _compressed_ bit streams */
-#	define AFMT_VORBIS	0x00000800
-
-/* 32 bit formats (MSB aligned) formats */
-#	define AFMT_S32_LE	0x00001000
-#	define AFMT_S32_BE	0x00002000
-
-/* Reserved for _native_ endian double precision IEEE floating point */
-#	define AFMT_FLOAT	0x00004000
-
-/* 24 bit formats (LSB aligned in 32 bit word) formats */
-#	define AFMT_S24_LE	0x00008000
-#	define AFMT_S24_BE	0x00010000
-
-/*
- * S/PDIF raw format. In this format the S/PDIF frames (including all
- * control and user bits) are included in the data stream. Each sample
- * is stored in a 32 bit frame (see IEC-958 for more info). This format
- * is supported by very few devices and it's only usable for purposes
- * where full access to the control/user bits is required (real time control).
- */
-#	define AFMT_SPDIF_RAW	0x00020000
-
-/* 24 bit packed (3 byte) little endian format (USB compatibility) */
-#	define AFMT_S24_PACKED	0x00040000
-
-
-/*
- * Some big endian/little endian handling macros (native endian and opposite
- * endian formats). The usage of these macros is described in the OSS
- * Programmer's Manual.
- */
-
-#if defined(_AIX) || defined(AIX) || defined(sparc) || defined(__hppa) || defined(PPC) || defined(__powerpc__) && !defined(i386) && !defined(__i386) && !defined(__i386__)
-
-/* Big endian machines */
-#  define _PATCHKEY(id) (0xfd00|id)
-#  define AFMT_S16_NE AFMT_S16_BE
-#  define AFMT_U16_NE AFMT_U16_BE
-#  define AFMT_S32_NE AFMT_S32_BE
-#  define AFMT_S24_NE AFMT_S24_BE
-#  define AFMT_S16_OE AFMT_S16_LE
-#  define AFMT_S32_OE AFMT_S32_LE
-#  define AFMT_S24_OE AFMT_S24_LE
-#else
-#  define _PATCHKEY(id) ((id<<8)|0xfd)
-#  define AFMT_S16_NE AFMT_S16_LE
-#  define AFMT_U16_NE AFMT_U16_LE
-#  define AFMT_S32_NE AFMT_S32_LE
-#  define AFMT_S24_NE AFMT_S24_LE
-#  define AFMT_S16_OE AFMT_S16_BE
-#  define AFMT_S32_OE AFMT_S32_BE
-#  define AFMT_S24_OE AFMT_S24_BE
-#endif
-/*
- * Buffer status queries.
- */
-typedef struct audio_buf_info
-{
-  int fragments;		/* # of available fragments (partially usend ones not counted) */
-  int fragstotal;		/* Total # of fragments allocated */
-  int fragsize;			/* Size of a fragment in bytes */
-  int bytes;			/* Available space in bytes (includes partially used fragments) */
-  /* Note! 'bytes' could be more than fragments*fragsize */
-} audio_buf_info;
-
-#define SNDCTL_DSP_GETOSPACE		__SIOR ('P',12, audio_buf_info)
-#define SNDCTL_DSP_GETISPACE		__SIOR ('P',13, audio_buf_info)
-#define SNDCTL_DSP_GETCAPS		__SIOR ('P',15, int)
-#	define PCM_CAP_REVISION		0x000000ff	/* Bits for revision level (0 to 255) */
-#	define PCM_CAP_DUPLEX		0x00000100	/* Full duplex record/playback */
-#	define PCM_CAP_REALTIME		0x00000200	/* Not in use */
-#	define PCM_CAP_BATCH		0x00000400	/* Device has some kind of */
-							/* internal buffers which may */
-							/* cause some delays and */
-							/* decrease precision of timing */
-#	define PCM_CAP_COPROC		0x00000800	/* Has a coprocessor */
-							/* Sometimes it's a DSP */
-							/* but usually not */
-#	define PCM_CAP_TRIGGER		0x00001000	/* Supports SETTRIGGER */
-#	define PCM_CAP_MMAP		0x00002000	/* Supports mmap() */
-#	define PCM_CAP_MULTI		0x00004000	/* Supports multiple open */
-#	define PCM_CAP_BIND		0x00008000	/* Supports binding to front/rear/center/lfe */
-#   	define PCM_CAP_INPUT		0x00010000	/* Supports recording */
-#   	define PCM_CAP_OUTPUT		0x00020000	/* Supports playback */
-#	define PCM_CAP_VIRTUAL		0x00040000	/* Virtual device */
-/* 0x00040000 and 0x00080000 reserved for future use */
-
-/* Analog/digital control capabilities */
-#	define PCM_CAP_ANALOGOUT	0x00100000
-#	define PCM_CAP_ANALOGIN		0x00200000
-#	define PCM_CAP_DIGITALOUT	0x00400000
-#	define PCM_CAP_DIGITALIN	0x00800000
-#	define PCM_CAP_ADMASK		0x00f00000
-/*
- * NOTE! (capabilities & PCM_CAP_ADMASK)==0 means just that the
- * digital/analog interface control features are not supported by the 
- * device/driver. However the device still supports analog, digital or
- * both inputs/outputs (depending on the device). See the OSS Programmer's
- * Guide for full details.
- */
-#	define PCM_CAP_SHADOW		0x01000000	/* "Shadow" device */
-
-/*
- * Preferred channel usage. These bits can be used to
- * give recommendations to the application. Used by few drivers.
- * For example if ((caps & DSP_CH_MASK) == DSP_CH_MONO) means that
- * the device works best in mono mode. However it doesn't necessarily mean
- * that the device cannot be used in stereo. These bits should only be used
- * by special applications such as multi track hard disk recorders to find
- * out the initial setup. However the user should be able to override this
- * selection.
- *
- * To find out which modes are actually supported the application should 
- * try to select them using SNDCTL_DSP_CHANNELS.
- */
-#	define DSP_CH_MASK		0x06000000	/* Mask */
-#	define DSP_CH_ANY		0x00000000	/* No preferred mode */
-#	define DSP_CH_MONO		0x02000000
-#	define DSP_CH_STEREO		0x04000000
-#	define DSP_CH_MULTI		0x06000000	/* More than two channels */
-
-#	define PCM_CAP_HIDDEN		0x08000000	/* Hidden device */
-#	define PCM_CAP_FREERATE		0x10000000
-#	define PCM_CAP_MODEM		0x20000000	/* Modem device */
-#	define PCM_CAP_DEFAULT		0x40000000	/* "Default" device */
-
-/*
- * The PCM_CAP_* capability names were known as DSP_CAP_* prior OSS 4.0
- * so it's necessary to define the older names too.
- */
-#define DSP_CAP_ADMASK		PCM_CAP_ADMASK
-#define DSP_CAP_ANALOGIN	PCM_CAP_ANALOGIN
-#define DSP_CAP_ANALOGOUT	PCM_CAP_ANALOGOUT
-#define DSP_CAP_BATCH		PCM_CAP_BATCH
-#define DSP_CAP_BIND		PCM_CAP_BIND
-#define DSP_CAP_COPROC		PCM_CAP_COPROC
-#define DSP_CAP_DEFAULT		PCM_CAP_DEFAULT
-#define DSP_CAP_DIGITALIN	PCM_CAP_DIGITALIN
-#define DSP_CAP_DIGITALOUT	PCM_CAP_DIGITALOUT
-#define DSP_CAP_DUPLEX		PCM_CAP_DUPLEX
-#define DSP_CAP_FREERATE	PCM_CAP_FREERATE
-#define DSP_CAP_HIDDEN		PCM_CAP_HIDDEN
-#define DSP_CAP_INPUT		PCM_CAP_INPUT
-#define DSP_CAP_MMAP		PCM_CAP_MMAP
-#define DSP_CAP_MODEM		PCM_CAP_MODEM
-#define DSP_CAP_MULTI		PCM_CAP_MULTI
-#define DSP_CAP_OUTPUT		PCM_CAP_OUTPUT
-#define DSP_CAP_REALTIME	PCM_CAP_REALTIME
-#define DSP_CAP_REVISION	PCM_CAP_REVISION
-#define DSP_CAP_SHADOW		PCM_CAP_SHADOW
-#define DSP_CAP_TRIGGER		PCM_CAP_TRIGGER
-#define DSP_CAP_VIRTUAL		PCM_CAP_VIRTUAL
-
-#define SNDCTL_DSP_GETTRIGGER		__SIOR ('P',16, int)
-#define SNDCTL_DSP_SETTRIGGER		__SIOW ('P',16, int)
-#	define PCM_ENABLE_INPUT		0x00000001
-#	define PCM_ENABLE_OUTPUT	0x00000002
-
-typedef struct count_info
-{
-  unsigned int bytes;		/* Total # of bytes processed */
-  int blocks;			/* # of fragment transitions since last time */
-  int ptr;			/* Current DMA pointer value */
-} count_info;
-
-#define SNDCTL_DSP_GETIPTR		__SIOR ('P',17, count_info)
-#define SNDCTL_DSP_GETOPTR		__SIOR ('P',18, count_info)
-
-typedef struct buffmem_desc
-{
-  unsigned *buffer;
-  int size;
-} buffmem_desc;
-#define SNDCTL_DSP_SETSYNCRO		__SIO  ('P', 21)
-#define SNDCTL_DSP_SETDUPLEX		__SIO  ('P', 22)
-
-#define SNDCTL_DSP_PROFILE		__SIOW ('P', 23, int)	/* OBSOLETE */
-#define	  APF_NORMAL	0	/* Normal applications */
-#define	  APF_NETWORK	1	/* Underruns probably caused by an "external" delay */
-#define   APF_CPUINTENS 2	/* Underruns probably caused by "overheating" the CPU */
-
-#define SNDCTL_DSP_GETODELAY		__SIOR ('P', 23, int)
-
-typedef struct audio_errinfo
-{
-  int play_underruns;
-  int rec_overruns;
-  unsigned int play_ptradjust;
-  unsigned int rec_ptradjust;
-  int play_errorcount;
-  int rec_errorcount;
-  int play_lasterror;
-  int rec_lasterror;
-  int play_errorparm;
-  int rec_errorparm;
-  int filler[16];
-} audio_errinfo;
-
-#define SNDCTL_DSP_GETPLAYVOL		__SIOR ('P', 24, int)
-#define SNDCTL_DSP_SETPLAYVOL		__SIOWR('P', 24, int)
-#define SNDCTL_DSP_GETERROR		__SIOR ('P', 25, audio_errinfo)
-/*
- ****************************************************************************
- * Digital interface (S/PDIF) control interface
- */
-
-typedef struct oss_digital_control
-{
-  unsigned int caps;
-#define DIG_CBITIN_NONE			0x00000000
-#define DIG_CBITIN_LIMITED		0x00000001
-#define DIG_CBITIN_DATA 		0x00000002
-#define DIG_CBITIN_BYTE0		0x00000004
-#define DIG_CBITIN_FULL 		0x00000008
-#define DIG_CBITIN_MASK 		0x0000000f
-#define DIG_CBITOUT_NONE		0x00000000
-#define DIG_CBITOUT_LIMITED		0x00000010
-#define DIG_CBITOUT_BYTE0		0x00000020
-#define DIG_CBITOUT_FULL 		0x00000040
-#define DIG_CBITOUT_DATA 		0x00000080
-#define DIG_CBITOUT_MASK 		0x000000f0
-#define DIG_UBITIN			0x00000100
-#define DIG_UBITOUT			0x00000200
-#define DIG_VBITOUT			0x00000400
-#define DIG_OUTRATE			0x00000800
-#define DIG_INRATE			0x00001000
-#define DIG_INBITS			0x00002000
-#define DIG_OUTBITS			0x00004000
-#define DIG_EXACT			0x00010000
-#define DIG_PRO				0x00020000
-#define DIG_CONSUMER			0x00040000
-#define DIG_PASSTHROUGH			0x00080000
-#define DIG_OUTSEL			0x00100000
-
-  unsigned int valid;
-#define VAL_CBITIN			0x00000001
-#define VAL_UBITIN			0x00000002
-#define VAL_CBITOUT			0x00000004
-#define VAL_UBITOUT			0x00000008
-#define VAL_ISTATUS			0x00000010
-#define VAL_IRATE			0x00000020
-#define VAL_ORATE			0x00000040
-#define VAL_INBITS			0x00000080
-#define VAL_OUTBITS			0x00000100
-#define VAL_REQUEST			0x00000200
-#define VAL_OUTSEL			0x00000400
-
-#define VAL_OUTMASK (VAL_CBITOUT|VAL_UBITOUT|VAL_ORATE|VAL_OUTBITS|VAL_OUTSEL)
-
-  unsigned int request, param;
-#define SPD_RQ_PASSTHROUGH				1
-
-  unsigned char cbitin[24];
-  unsigned char ubitin[24];
-  unsigned char cbitout[24];
-  unsigned char ubitout[24];
-
-  unsigned int outsel;
-#define OUTSEL_DIGITAL		1
-#define OUTSEL_ANALOG		2
-#define OUTSEL_BOTH		(OUTSEL_DIGITAL|OUTSEL_ANALOG)
-
-  int in_data;			/* Audio/data if autodetectable by the receiver */
-#define IND_UNKNOWN		0
-#define IND_AUDIO		1
-#define IND_DATA		2
-
-  int in_locked;		/* Receiver locked */
-#define LOCK_NOT_INDICATED	0
-#define LOCK_UNLOCKED		1
-#define LOCK_LOCKED		2
-
-  int in_quality;		/* Input signal quality */
-#define IN_QUAL_NOT_INDICATED	0
-#define IN_QUAL_POOR		1
-#define IN_QUAL_GOOD		2
-
-  int in_vbit, out_vbit;	/* V bits */
-#define VBIT_NOT_INDICATED	0
-#define VBIT_OFF		1
-#define VBIT_ON			2
-
-  unsigned int in_errors;	/* Various input error conditions */
-#define INERR_CRC		0x0001
-#define INERR_QCODE_CRC		0x0002
-#define INERR_PARITY		0x0004
-#define INERR_BIPHASE		0x0008
-
-  int srate_in, srate_out;
-  int bits_in, bits_out;
-
-  int filler[32];
-} oss_digital_control;
-
-#define SNDCTL_DSP_READCTL		__SIOWR('P', 26, oss_digital_control)
-#define SNDCTL_DSP_WRITECTL		__SIOWR('P', 27, oss_digital_control)
-
-/*
- ****************************************************************************
- * Sync groups for audio devices
- */
-typedef struct oss_syncgroup
-{
-  int id;
-  int mode;
-  int filler[16];
-} oss_syncgroup;
-
-#define SNDCTL_DSP_SYNCGROUP		__SIOWR('P', 28, oss_syncgroup)
-#define SNDCTL_DSP_SYNCSTART		__SIOW ('P', 29, int)
-
-/*
- **************************************************************************
- * "cooked" mode enables software based conversions for sample rate, sample
- * format (bits) and number of channels (mono/stereo). These conversions are
- * required with some devices that support only one sample rate or just stereo
- * to let the applications to use other formats. The cooked mode is enabled by
- * default. However it's necessary to disable this mode when mmap() is used or
- * when very deterministic timing is required. SNDCTL_DSP_COOKEDMODE is an
- * optional call introduced in OSS 3.9.6f. It's _error return must be ignored_
- * since normally this call will return erno=EINVAL.
- *
- * SNDCTL_DSP_COOKEDMODE must be called immediately after open before doing
- * anything else. Otherwise the call will not have any effect.
- */
-#define SNDCTL_DSP_COOKEDMODE		__SIOW ('P', 30, int)
-
-/*
- **************************************************************************
- * SNDCTL_DSP_SILENCE and SNDCTL_DSP_SKIP are new calls in OSS 3.99.0
- * that can be used to implement pause/continue during playback (no effect
- * on recording).
- */
-#define SNDCTL_DSP_SILENCE		__SIO  ('P', 31)
-#define SNDCTL_DSP_SKIP			__SIO  ('P', 32)
-/*
- ****************************************************************************
- * Abort transfer (reset) functions for input and output
- */
-#define SNDCTL_DSP_HALT_INPUT		__SIO  ('P', 33)
-#define SNDCTL_DSP_RESET_INPUT	SNDCTL_DSP_HALT_INPUT	/* Old name */
-#define SNDCTL_DSP_HALT_OUTPUT		__SIO  ('P', 34)
-#define SNDCTL_DSP_RESET_OUTPUT	SNDCTL_DSP_HALT_OUTPUT	/* Old name */
-/*
- ****************************************************************************
- * Low water level control
- */
-#define SNDCTL_DSP_LOW_WATER		__SIOW ('P', 34, int)
-
-/*
- ****************************************************************************
- * 64 bit pointer support. Only available in environments that support
- * the 64 bit (long long) integer type.
- */
-#ifndef OSS_NO_LONG_LONG
-typedef struct
-{
-  long long samples;
-  int fifo_samples;
-  int filler[32];		/* For future use */
-} oss_count_t;
-
-#define SNDCTL_DSP_CURRENT_IPTR		__SIOR ('P', 35, oss_count_t)
-#define SNDCTL_DSP_CURRENT_OPTR		__SIOR ('P', 36, oss_count_t)
-#endif
-
-/*
- ****************************************************************************
- * Interface for selecting recording sources and playback output routings.
- */
-#define SNDCTL_DSP_GET_RECSRC_NAMES	__SIOR ('P', 37, oss_mixer_enuminfo)
-#define SNDCTL_DSP_GET_RECSRC		__SIOR ('P', 38, int)
-#define SNDCTL_DSP_SET_RECSRC		__SIOWR('P', 38, int)
-
-#define SNDCTL_DSP_GET_PLAYTGT_NAMES	__SIOR ('P', 39, oss_mixer_enuminfo)
-#define SNDCTL_DSP_GET_PLAYTGT		__SIOR ('P', 40, int)
-#define SNDCTL_DSP_SET_PLAYTGT		__SIOWR('P', 40, int)
-#define SNDCTL_DSP_GETRECVOL		__SIOR ('P', 41, int)
-#define SNDCTL_DSP_SETRECVOL		__SIOWR('P', 41, int)
-
-/*
- ***************************************************************************
- * Some calls for setting the channel assignment with multi channel devices
- * (see the manual for details).
- */
-#ifndef OSS_NO_LONG_LONG
-#define SNDCTL_DSP_GET_CHNORDER		__SIOR ('P', 42, unsigned long long)
-#define SNDCTL_DSP_SET_CHNORDER		__SIOWR('P', 42, unsigned long long)
-#	define CHID_UNDEF	0
-#	define CHID_L		1
-#	define CHID_R		2
-#	define CHID_C		3
-#	define CHID_LFE		4
-#	define CHID_LS		5
-#	define CHID_RS		6
-#	define CHID_LR		7
-#	define CHID_RR		8
-#define CHNORDER_UNDEF		0x0000000000000000ULL
-#define CHNORDER_NORMAL		0x0000000087654321ULL
-#endif
-
-#define MAX_PEAK_CHANNELS	128
-typedef unsigned short oss_peaks_t[MAX_PEAK_CHANNELS];
-#define SNDCTL_DSP_GETIPEAKS		__SIOR('P', 43, oss_peaks_t)
-#define SNDCTL_DSP_GETOPEAKS		__SIOR('P', 44, oss_peaks_t)
-
-#define SNDCTL_DSP_POLICY		__SIOW('P', 45, int)	/* See the manual */
-
-/*
- ****************************************************************************
- * Few ioctl calls that are not official parts of OSS. They have been used
- * by few freeware implementations of OSS.
- */
-#define SNDCTL_DSP_GETCHANNELMASK	__SIOWR('P', 64, int)
-#define SNDCTL_DSP_BIND_CHANNEL		__SIOWR('P', 65, int)
-#     define DSP_BIND_QUERY           0x00000000
-#     define DSP_BIND_FRONT           0x00000001
-#     define DSP_BIND_SURR            0x00000002
-#     define DSP_BIND_CENTER_LFE      0x00000004
-#     define DSP_BIND_HANDSET         0x00000008
-#     define DSP_BIND_MIC             0x00000010
-#     define DSP_BIND_MODEM1          0x00000020
-#     define DSP_BIND_MODEM2          0x00000040
-#     define DSP_BIND_I2S             0x00000080
-#     define DSP_BIND_SPDIF           0x00000100
-#     define DSP_BIND_REAR            0x00000200
-
-#ifdef sun
-/* Not part of OSS. Reserved for internal use by Solaris */
-#define X_SADA_GET_PLAYTGT_MASK	__SIOR ('P', 66, int)
-#define X_SADA_GET_PLAYTGT	__SIOR ('P', 67, int)
-#define X_SADA_SET_PLAYTGT	__SIOWR('P', 68, int)
-#endif
-
-#ifndef NO_LEGACY_MIXER
-/*
- ****************************************************************************
- * IOCTL commands for the "legacy " /dev/mixer API (obsolete)
- *
- * Mixer controls
- *
- * There can be up to 20 different analog mixer channels. The
- * SOUND_MIXER_NRDEVICES gives the currently supported maximum. 
- * The SOUND_MIXER_READ_DEVMASK returns a bitmask which tells
- * the devices supported by the particular mixer.
- *
- * {!notice This "legacy" mixer API is obsolete. It has been superceded
- * by a new one (see below).
- */
-
-#define SOUND_MIXER_NRDEVICES	28
-#define SOUND_MIXER_VOLUME	0
-#define SOUND_MIXER_BASS	1
-#define SOUND_MIXER_TREBLE	2
-#define SOUND_MIXER_SYNTH	3
-#define SOUND_MIXER_PCM		4
-#define SOUND_MIXER_SPEAKER	5
-#define SOUND_MIXER_LINE	6
-#define SOUND_MIXER_MIC		7
-#define SOUND_MIXER_CD		8
-#define SOUND_MIXER_IMIX	9	/*  Recording monitor  */
-#define SOUND_MIXER_ALTPCM	10
-#define SOUND_MIXER_RECLEV	11	/* Recording level */
-#define SOUND_MIXER_IGAIN	12	/* Input gain */
-#define SOUND_MIXER_OGAIN	13	/* Output gain */
-/* 
- * Some soundcards have three line level inputs (line, aux1 and aux2). 
- * Since each card manufacturer has assigned different meanings to 
- * these inputs, it's impractical to assign specific meanings 
- * (eg line, cd, synth etc.) to them.
- */
-#define SOUND_MIXER_LINE1	14	/* Input source 1  (aux1) */
-#define SOUND_MIXER_LINE2	15	/* Input source 2  (aux2) */
-#define SOUND_MIXER_LINE3	16	/* Input source 3  (line) */
-#define SOUND_MIXER_DIGITAL1	17	/* Digital I/O 1 */
-#define SOUND_MIXER_DIGITAL2	18	/* Digital I/O 2 */
-#define SOUND_MIXER_DIGITAL3	19	/* Digital I/O 3 */
-#define SOUND_MIXER_PHONE	20	/* Phone */
-#define SOUND_MIXER_MONO	21	/* Mono Output */
-#define SOUND_MIXER_VIDEO	22	/* Video/TV (audio) in */
-#define SOUND_MIXER_RADIO	23	/* Radio in */
-#define SOUND_MIXER_DEPTH	24	/* Surround depth */
-#define SOUND_MIXER_REARVOL	25	/* Rear/Surround speaker vol */
-#define SOUND_MIXER_CENTERVOL	26	/* Center/LFE speaker vol */
-#define SOUND_MIXER_SIDEVOL	27	/* Side-Surround (8speaker) vol */
-
-/*
- * Warning: SOUND_MIXER_SURRVOL is an old name of SOUND_MIXER_SIDEVOL.
- *          They are both assigned to the same mixer control. Don't
- *          use both control names in the same program/driver.
- */
-#define SOUND_MIXER_SURRVOL	SOUND_MIXER_SIDEVOL
-
-/* Some on/off settings (SOUND_SPECIAL_MIN - SOUND_SPECIAL_MAX) */
-/* Not counted to SOUND_MIXER_NRDEVICES, but use the same number space */
-#define SOUND_ONOFF_MIN		28
-#define SOUND_ONOFF_MAX		30
-
-/* Note!	Number 31 cannot be used since the sign bit is reserved */
-#define SOUND_MIXER_NONE	31
-
-/*
- * The following unsupported macros are no longer functional.
- * Use SOUND_MIXER_PRIVATE# macros in future.
- */
-#define SOUND_MIXER_ENHANCE	SOUND_MIXER_NONE
-#define SOUND_MIXER_MUTE	SOUND_MIXER_NONE
-#define SOUND_MIXER_LOUD	SOUND_MIXER_NONE
-
-#define SOUND_DEVICE_LABELS \
-	{"Vol  ", "Bass ", "Treble", "Synth", "Pcm  ", "Speaker ", "Line ", \
-	 "Mic  ", "CD   ", "Mix  ", "Pcm2 ", "Rec  ", "IGain", "OGain", \
-	 "Aux1", "Aux2", "Aux3", "Digital1", "Digital2", "Digital3", \
-	 "Phone", "Mono", "Video", "Radio", "Depth", \
-	 "Rear", "Center", "Side"}
-
-#define SOUND_DEVICE_NAMES \
-	{"vol", "bass", "treble", "synth", "pcm", "speaker", "line", \
-	 "mic", "cd", "mix", "pcm2", "rec", "igain", "ogain", \
-	 "aux1", "aux2", "aux3", "dig1", "dig2", "dig3", \
-	 "phone", "mono", "video", "radio", "depth", \
-	 "rear", "center", "side"}
-
-/*	Device bitmask identifiers	*/
-
-#define SOUND_MIXER_RECSRC	0xff	/* Arg contains a bit for each recording source */
-#define SOUND_MIXER_DEVMASK	0xfe	/* Arg contains a bit for each supported device */
-#define SOUND_MIXER_RECMASK	0xfd	/* Arg contains a bit for each supported recording source */
-#define SOUND_MIXER_CAPS	0xfc
-#	define SOUND_CAP_EXCL_INPUT	0x00000001	/* Only one recording source at a time */
-#	define SOUND_CAP_NOLEGACY	0x00000004	/* For internal use only */
-#	define SOUND_CAP_NORECSRC	0x00000008
-#define SOUND_MIXER_STEREODEVS	0xfb	/* Mixer channels supporting stereo */
-
-/* OSS/Free ONLY */
-#define SOUND_MIXER_OUTSRC    0xfa	/* Arg contains a bit for each input source to output */
-#define SOUND_MIXER_OUTMASK   0xf9	/* Arg contains a bit for each supported input source to output */
-/* OSS/Free ONLY */
-
-/*	Device mask bits	*/
-
-#define SOUND_MASK_VOLUME	(1 << SOUND_MIXER_VOLUME)
-#define SOUND_MASK_BASS		(1 << SOUND_MIXER_BASS)
-#define SOUND_MASK_TREBLE	(1 << SOUND_MIXER_TREBLE)
-#define SOUND_MASK_SYNTH	(1 << SOUND_MIXER_SYNTH)
-#define SOUND_MASK_PCM		(1 << SOUND_MIXER_PCM)
-#define SOUND_MASK_SPEAKER	(1 << SOUND_MIXER_SPEAKER)
-#define SOUND_MASK_LINE		(1 << SOUND_MIXER_LINE)
-#define SOUND_MASK_MIC		(1 << SOUND_MIXER_MIC)
-#define SOUND_MASK_CD		(1 << SOUND_MIXER_CD)
-#define SOUND_MASK_IMIX		(1 << SOUND_MIXER_IMIX)
-#define SOUND_MASK_ALTPCM	(1 << SOUND_MIXER_ALTPCM)
-#define SOUND_MASK_RECLEV	(1 << SOUND_MIXER_RECLEV)
-#define SOUND_MASK_IGAIN	(1 << SOUND_MIXER_IGAIN)
-#define SOUND_MASK_OGAIN	(1 << SOUND_MIXER_OGAIN)
-#define SOUND_MASK_LINE1	(1 << SOUND_MIXER_LINE1)
-#define SOUND_MASK_LINE2	(1 << SOUND_MIXER_LINE2)
-#define SOUND_MASK_LINE3	(1 << SOUND_MIXER_LINE3)
-#define SOUND_MASK_DIGITAL1	(1 << SOUND_MIXER_DIGITAL1)
-#define SOUND_MASK_DIGITAL2	(1 << SOUND_MIXER_DIGITAL2)
-#define SOUND_MASK_DIGITAL3	(1 << SOUND_MIXER_DIGITAL3)
-#define SOUND_MASK_MONO		(1 << SOUND_MIXER_MONO)
-#define SOUND_MASK_PHONE	(1 << SOUND_MIXER_PHONE)
-#define SOUND_MASK_RADIO	(1 << SOUND_MIXER_RADIO)
-#define SOUND_MASK_VIDEO	(1 << SOUND_MIXER_VIDEO)
-#define SOUND_MASK_DEPTH	(1 << SOUND_MIXER_DEPTH)
-#define SOUND_MASK_REARVOL	(1 << SOUND_MIXER_REARVOL)
-#define SOUND_MASK_CENTERVOL	(1 << SOUND_MIXER_CENTERVOL)
-#define SOUND_MASK_SIDEVOL	(1 << SOUND_MIXER_SIDEVOL)
-
-/* Note! SOUND_MASK_SURRVOL is alias of SOUND_MASK_SIDEVOL */
-#define SOUND_MASK_SURRVOL	(1 << SOUND_MIXER_SIDEVOL)
-
-/* Obsolete macros */
-#define SOUND_MASK_MUTE		(1 << SOUND_MIXER_MUTE)
-#define SOUND_MASK_ENHANCE	(1 << SOUND_MIXER_ENHANCE)
-#define SOUND_MASK_LOUD		(1 << SOUND_MIXER_LOUD)
-
-#define MIXER_READ(dev)			__SIOR('M', dev, int)
-#define SOUND_MIXER_READ_VOLUME		MIXER_READ(SOUND_MIXER_VOLUME)
-#define SOUND_MIXER_READ_BASS		MIXER_READ(SOUND_MIXER_BASS)
-#define SOUND_MIXER_READ_TREBLE		MIXER_READ(SOUND_MIXER_TREBLE)
-#define SOUND_MIXER_READ_SYNTH		MIXER_READ(SOUND_MIXER_SYNTH)
-#define SOUND_MIXER_READ_PCM		MIXER_READ(SOUND_MIXER_PCM)
-#define SOUND_MIXER_READ_SPEAKER	MIXER_READ(SOUND_MIXER_SPEAKER)
-#define SOUND_MIXER_READ_LINE		MIXER_READ(SOUND_MIXER_LINE)
-#define SOUND_MIXER_READ_MIC		MIXER_READ(SOUND_MIXER_MIC)
-#define SOUND_MIXER_READ_CD		MIXER_READ(SOUND_MIXER_CD)
-#define SOUND_MIXER_READ_IMIX		MIXER_READ(SOUND_MIXER_IMIX)
-#define SOUND_MIXER_READ_ALTPCM		MIXER_READ(SOUND_MIXER_ALTPCM)
-#define SOUND_MIXER_READ_RECLEV		MIXER_READ(SOUND_MIXER_RECLEV)
-#define SOUND_MIXER_READ_IGAIN		MIXER_READ(SOUND_MIXER_IGAIN)
-#define SOUND_MIXER_READ_OGAIN		MIXER_READ(SOUND_MIXER_OGAIN)
-#define SOUND_MIXER_READ_LINE1		MIXER_READ(SOUND_MIXER_LINE1)
-#define SOUND_MIXER_READ_LINE2		MIXER_READ(SOUND_MIXER_LINE2)
-#define SOUND_MIXER_READ_LINE3		MIXER_READ(SOUND_MIXER_LINE3)
-
-/* Obsolete macros */
-#define SOUND_MIXER_READ_MUTE		MIXER_READ(SOUND_MIXER_MUTE)
-#define SOUND_MIXER_READ_ENHANCE	MIXER_READ(SOUND_MIXER_ENHANCE)
-#define SOUND_MIXER_READ_LOUD		MIXER_READ(SOUND_MIXER_LOUD)
-
-#define SOUND_MIXER_READ_RECSRC		MIXER_READ(SOUND_MIXER_RECSRC)
-#define SOUND_MIXER_READ_DEVMASK	MIXER_READ(SOUND_MIXER_DEVMASK)
-#define SOUND_MIXER_READ_RECMASK	MIXER_READ(SOUND_MIXER_RECMASK)
-#define SOUND_MIXER_READ_STEREODEVS	MIXER_READ(SOUND_MIXER_STEREODEVS)
-#define SOUND_MIXER_READ_CAPS		MIXER_READ(SOUND_MIXER_CAPS)
-
-#define MIXER_WRITE(dev)		__SIOWR('M', dev, int)
-#define SOUND_MIXER_WRITE_VOLUME	MIXER_WRITE(SOUND_MIXER_VOLUME)
-#define SOUND_MIXER_WRITE_BASS		MIXER_WRITE(SOUND_MIXER_BASS)
-#define SOUND_MIXER_WRITE_TREBLE	MIXER_WRITE(SOUND_MIXER_TREBLE)
-#define SOUND_MIXER_WRITE_SYNTH		MIXER_WRITE(SOUND_MIXER_SYNTH)
-#define SOUND_MIXER_WRITE_PCM		MIXER_WRITE(SOUND_MIXER_PCM)
-#define SOUND_MIXER_WRITE_SPEAKER	MIXER_WRITE(SOUND_MIXER_SPEAKER)
-#define SOUND_MIXER_WRITE_LINE		MIXER_WRITE(SOUND_MIXER_LINE)
-#define SOUND_MIXER_WRITE_MIC		MIXER_WRITE(SOUND_MIXER_MIC)
-#define SOUND_MIXER_WRITE_CD		MIXER_WRITE(SOUND_MIXER_CD)
-#define SOUND_MIXER_WRITE_IMIX		MIXER_WRITE(SOUND_MIXER_IMIX)
-#define SOUND_MIXER_WRITE_ALTPCM	MIXER_WRITE(SOUND_MIXER_ALTPCM)
-#define SOUND_MIXER_WRITE_RECLEV	MIXER_WRITE(SOUND_MIXER_RECLEV)
-#define SOUND_MIXER_WRITE_IGAIN		MIXER_WRITE(SOUND_MIXER_IGAIN)
-#define SOUND_MIXER_WRITE_OGAIN		MIXER_WRITE(SOUND_MIXER_OGAIN)
-#define SOUND_MIXER_WRITE_LINE1		MIXER_WRITE(SOUND_MIXER_LINE1)
-#define SOUND_MIXER_WRITE_LINE2		MIXER_WRITE(SOUND_MIXER_LINE2)
-#define SOUND_MIXER_WRITE_LINE3		MIXER_WRITE(SOUND_MIXER_LINE3)
-
-/* Obsolete macros */
-#define SOUND_MIXER_WRITE_MUTE		MIXER_WRITE(SOUND_MIXER_MUTE)
-#define SOUND_MIXER_WRITE_ENHANCE	MIXER_WRITE(SOUND_MIXER_ENHANCE)
-#define SOUND_MIXER_WRITE_LOUD		MIXER_WRITE(SOUND_MIXER_LOUD)
-
-#define SOUND_MIXER_WRITE_RECSRC	MIXER_WRITE(SOUND_MIXER_RECSRC)
-
-typedef struct mixer_info	/* OBSOLETE */
-{
-  char id[16];
-  char name[32];
-  int modify_counter;
-  int card_number;
-  int port_number;
-  char handle[32];
-} mixer_info;
-
-/* SOUND_MIXER_INFO is obsolete - use SNDCTL_MIXERINFO instead */
-#define SOUND_MIXER_INFO		__SIOR ('M', 101, mixer_info)
-
-/*
- * Two ioctls for special souncard function (OSS/Free only)
- */
-#define SOUND_MIXER_AGC  _SIOWR('M', 103, int)
-#define SOUND_MIXER_3DSE  _SIOWR('M', 104, int)
-/*
- * The SOUND_MIXER_PRIVATE# commands can be redefined by low level drivers.
- * These features can be used when accessing device specific features.
- */
-#define SOUND_MIXER_PRIVATE1		__SIOWR('M', 111, int)
-#define SOUND_MIXER_PRIVATE2		__SIOWR('M', 112, int)
-#define SOUND_MIXER_PRIVATE3		__SIOWR('M', 113, int)
-#define SOUND_MIXER_PRIVATE4		__SIOWR('M', 114, int)
-#define SOUND_MIXER_PRIVATE5		__SIOWR('M', 115, int)
-
-/* The following two controls were never implemented and they should not be used. */
-#define SOUND_MIXER_READ_MAINVOL		__SIOR ('M', 116, int)
-#define SOUND_MIXER_WRITE_MAINVOL		__SIOWR('M', 116, int)
-
-/*
- * SOUND_MIXER_GETLEVELS and SOUND_MIXER_SETLEVELS calls can be used
- * for querying current mixer settings from the driver and for loading
- * default volume settings _prior_ activating the mixer (loading
- * doesn't affect current state of the mixer hardware). These calls
- * are for internal use by the driver software only.
- */
-
-typedef struct mixer_vol_table
-{
-  int num;			/* Index to volume table */
-  char name[32];
-  int levels[32];
-} mixer_vol_table;
-
-#define SOUND_MIXER_GETLEVELS		__SIOWR('M', 116, mixer_vol_table)
-#define SOUND_MIXER_SETLEVELS		__SIOWR('M', 117, mixer_vol_table)
-
-#define OSS_GETVERSION			__SIOR ('M', 118, int)
-
-/*
- * Calls to set/get the recording gain for the currently active
- * recording source. These calls automatically map to the right control.
- * Note that these calls are not supported by all drivers. In this case
- * the call will return -1 with errno set to EINVAL
- *
- * The _MONGAIN work in similar way but set/get the monitoring gain for
- * the currently selected recording source.
- */
-#define SOUND_MIXER_READ_RECGAIN	__SIOR ('M', 119, int)
-#define SOUND_MIXER_WRITE_RECGAIN	__SIOWR('M', 119, int)
-#define SOUND_MIXER_READ_MONGAIN	__SIOR ('M', 120, int)
-#define SOUND_MIXER_WRITE_MONGAIN	__SIOWR('M', 120, int)
-
-/* The following call is for driver development time purposes. It's not
- * present in any released drivers.
- */
-typedef unsigned char oss_reserved_t[512];
-#define SOUND_MIXER_RESERVED		__SIOWR('M', 121, oss_reserved_t)
-#endif /* ifndef NO_LEGACY_MIXER */
-
-/*
- *************************************************************************
- * The "new" mixer API of OSS 4.0 and later.
- *
- * This improved mixer API makes it possible to access every possible feature
- * of every possible device. However you should read the mixer programming
- * section of the OSS API Developer's Manual. There is no chance that you
- * could use this interface correctly just by examining this header.
- */
-
-typedef struct oss_sysinfo
-{
-  char product[32];		/* For example OSS/Free, OSS/Linux or OSS/Solaris */
-  char version[32];		/* For example 4.0a */
-  int versionnum;		/* See OSS_GETVERSION */
-  char options[128];		/* Reserved */
-
-  int numaudios;		/* # of audio/dsp devices */
-  int openedaudio[8];		/* Bit mask telling which audio devices are busy */
-
-  int numsynths;		/* # of availavle synth devices */
-  int nummidis;			/* # of available MIDI ports */
-  int numtimers;		/* # of available timer devices */
-  int nummixers;		/* # of mixer devices */
-
-  int openedmidi[8];		/* Bit mask telling which midi devices are busy */
-  int numcards;			/* Number of sound cards in the system */
-  int numaudioengines;		/* Number of audio engines in the system */
-  char license[16];		/* For example "GPL" or "CDDL" */
-  int filler[236];		/* For future expansion (set to -1) */
-} oss_sysinfo;
-
-typedef struct oss_mixext
-{
-  int dev;			/* Mixer device number */
-  int ctrl;			/* Controller number */
-  int type;			/* Entry type */
-#	define MIXT_DEVROOT	 0	/* Device root entry */
-#	define MIXT_GROUP	 1	/* Controller group */
-#	define MIXT_ONOFF	 2	/* OFF (0) or ON (1) */
-#	define MIXT_ENUM	 3	/* Enumerated (0 to maxvalue) */
-#	define MIXT_MONOSLIDER	 4	/* Mono slider (0 to 255) */
-#	define MIXT_STEREOSLIDER 5	/* Stereo slider (dual 0 to 255) */
-#	define MIXT_MESSAGE	 6	/* (Readable) textual message */
-#	define MIXT_MONOVU	 7	/* VU meter value (mono) */
-#	define MIXT_STEREOVU	 8	/* VU meter value (stereo) */
-#	define MIXT_MONOPEAK	 9	/* VU meter peak value (mono) */
-#	define MIXT_STEREOPEAK	10	/* VU meter peak value (stereo) */
-#	define MIXT_RADIOGROUP	11	/* Radio button group */
-#	define MIXT_MARKER	12	/* Separator between normal and extension entries */
-#	define MIXT_VALUE	13	/* Decimal value entry */
-#	define MIXT_HEXVALUE	14	/* Hexadecimal value entry */
-#	define MIXT_MONODB	15	/* OBSOLETE */
-#	define MIXT_STEREODB	16	/* OBSOLETE */
-#	define MIXT_SLIDER	17	/* Slider (mono) with full (31 bit) postitive integer range */
-#	define MIXT_3D		18
-
-/*
- * Sliders with range expanded to 15 bits per channel (0-32767)
- */
-#	define MIXT_MONOSLIDER16	19
-#	define MIXT_STEREOSLIDER16	20
-#	define MIXT_MUTE	21	/* Mute=1, unmute=0 */
-
-  /**************************************************************/
-
-  /* Possible value range (minvalue to maxvalue) */
-  /* Note that maxvalue may also be smaller than minvalue */
-  int maxvalue;
-  int minvalue;
-
-  int flags;
-#	define MIXF_READABLE	0x00000001	/* Has readable value */
-#	define MIXF_WRITEABLE	0x00000002	/* Has writeable value */
-#	define MIXF_POLL	0x00000004	/* May change itself */
-#	define MIXF_HZ		0x00000008	/* Herz scale */
-#	define MIXF_STRING	0x00000010	/* Use dynamic extensions for value */
-#	define MIXF_DYNAMIC	0x00000010	/* Supports dynamic extensions */
-#	define MIXF_OKFAIL	0x00000020	/* Interpret value as 1=OK, 0=FAIL */
-#	define MIXF_FLAT	0x00000040	/* Flat vertical space requirements */
-#	define MIXF_LEGACY	0x00000080	/* Legacy mixer control group */
-#	define MIXF_CENTIBEL	0x00000100	/* Centibel (0.1 dB) step size */
-#	define MIXF_DECIBEL	0x00000200	/* Step size of 1 dB */
-#	define MIXF_MAINVOL	0x00000400	/* Main volume control */
-#	define MIXF_PCMVOL	0x00000800	/* PCM output volume control */
-#	define MIXF_RECVOL	0x00001000	/* PCM recording volume control */
-#	define MIXF_MONVOL	0x00002000	/* Input->output monitor volume */
-#	define MIXF_WIDE	0x00004000	/* Enum control has wide labels */
-#	define MIXF_DESCR	0x00008000	/* Description (tooltip) available */
-  char id[16];			/* Mnemonic ID (mainly for internal use) */
-  int parent;			/* Entry# of parent (group) node (-1 if root) */
-
-  int dummy;			/* Internal use */
-
-  int timestamp;
-
-  char data[64];		/* Misc data (entry type dependent) */
-  unsigned char enum_present[32];	/* Mask of allowed enum values */
-  int control_no;		/* SOUND_MIXER_VOLUME..SOUND_MIXER_MIDI */
-  /* (-1 means not indicated) */
-
-/*
- * The desc field is reserved for internal purposes of OSS. It should not be 
- * used by applications.
- */
-  unsigned int desc;
-#define MIXEXT_SCOPE_MASK			0x0000003f
-#define MIXEXT_SCOPE_OTHER			0x00000000
-#define MIXEXT_SCOPE_INPUT			0x00000001
-#define MIXEXT_SCOPE_OUTPUT			0x00000002
-#define MIXEXT_SCOPE_MONITOR			0x00000003
-#define MIXEXT_SCOPE_RECSWITCH			0x00000004
-
-  char extname[32];
-  int update_counter;
-  int rgbcolor;		/* 0 means default color (not black) . Otherwise 24 bit RGB color */
-  int filler[6];
-} oss_mixext;
-
-/*
- * Recommended colors to be used in the rgbcolor field. These match the
- * colors used as the audio jack colors in HD audio motherboards.
- */
-#define OSS_RGB_BLUE	0x7aabde		// Light blue
-#define OSS_RGB_GREEN	0xb3c98c		// Lime green
-#define OSS_RGB_PINK	0xe88c99
-#define OSS_RGB_GRAY	0xd1ccc4
-#define OSS_RGB_BLACK	0x2b2926		// Light black
-#define OSS_RGB_ORANGE	0xe89e47
-#define OSS_RGB_RED	0xff0000
-#define OSS_RGB_YELLOW	0xffff00
-#define OSS_RGB_PURPLE	0x800080
-#define OSS_RGB_WHITE	0xf8f8ff
-
-typedef struct oss_mixext_root
-{
-  char id[16];
-  char name[48];
-} oss_mixext_root;
-
-typedef struct oss_mixer_value
-{
-  int dev;
-  int ctrl;
-  int value;
-  int flags;			/* Reserved for future use. Initialize to 0 */
-  int timestamp;		/* Must be set to oss_mixext.timestamp */
-  int filler[8];		/* Reserved for future use. Initialize to 0 */
-} oss_mixer_value;
-
-#define OSS_ENUM_MAXVALUE	255
-#define OSS_ENUM_STRINGSIZE	3000
-typedef struct oss_mixer_enuminfo
-{
-  int dev;
-  int ctrl;
-  int nvalues;
-  int version;			/* Read the manual */
-  short strindex[OSS_ENUM_MAXVALUE];
-  char strings[OSS_ENUM_STRINGSIZE];
-} oss_mixer_enuminfo;
-
-#define OPEN_READ	PCM_ENABLE_INPUT
-#define OPEN_WRITE	PCM_ENABLE_OUTPUT
-#define OPEN_READWRITE	(OPEN_READ|OPEN_WRITE)
-
-typedef struct oss_audioinfo
-{
-  int dev;			/* Audio device number */
-  char name[64];
-  int busy;			/* 0, OPEN_READ, OPEN_WRITE or OPEN_READWRITE */
-  int pid;
-  int caps;			/* PCM_CAP_INPUT, PCM_CAP_OUTPUT */
-  int iformats, oformats;
-  int magic;			/* Reserved for internal use */
-  char cmd[64];			/* Command using the device (if known) */
-  int card_number;
-  int port_number;
-  int mixer_dev;
-  int legacy_device;		/* Obsolete field. Replaced by devnode */
-  int enabled;			/* 1=enabled, 0=device not ready at this moment */
-  int flags;			/* For internal use only - no practical meaning */
-  int min_rate, max_rate;	/* Sample rate limits */
-  int min_channels, max_channels;	/* Number of channels supported */
-  int binding;			/* DSP_BIND_FRONT, etc. 0 means undefined */
-  int rate_source;
-  char handle[32];
-#define OSS_MAX_SAMPLE_RATES	20	/* Cannot be changed  */
-  unsigned int nrates, rates[OSS_MAX_SAMPLE_RATES];	/* Please read the manual before using these */
-  oss_longname_t song_name;	/* Song name (if given) */
-  oss_label_t label;		/* Device label (if given) */
-  int latency;			/* In usecs, -1=unknown */
-  oss_devnode_t devnode;	/* Device special file name (absolute path) */
-  int next_play_engine;		/* Read the documentation for more info */
-  int next_rec_engine;		/* Read the documentation for more info */
-  int filler[184];
-} oss_audioinfo;
-
-typedef struct oss_mixerinfo
-{
-  int dev;
-  char id[16];
-  char name[32];
-  int modify_counter;
-  int card_number;
-  int port_number;
-  char handle[32];
-  int magic;			/* Reserved */
-  int enabled;			/* Reserved */
-  int caps;
-#define MIXER_CAP_VIRTUAL	0x00000001
-#define MIXER_CAP_LAYOUT_B	0x00000002	/* For internal use only */
-#define MIXER_CAP_NARROW	0x00000004	/* Conserve horiz space */
-  int flags;			/* Reserved */
-  int nrext;
-  /*
-   * The priority field can be used to select the default (motherboard)
-   * mixer device. The mixer with the highest priority is the
-   * most preferred one. -2 or less means that this device cannot be used
-   * as the default mixer.
-   */
-  int priority;
-  oss_devnode_t devnode;	/* Device special file name (absolute path) */
-  int legacy_device;
-  int filler[245];		/* Reserved */
-} oss_mixerinfo;
-
-typedef struct oss_midi_info
-{
-  int dev;			/* Midi device number */
-  char name[64];
-  int busy;			/* 0, OPEN_READ, OPEN_WRITE or OPEN_READWRITE */
-  int pid;
-  char cmd[64];			/* Command using the device (if known) */
-  int caps;
-#define MIDI_CAP_MPU401		0x00000001	/**** OBSOLETE ****/
-#define MIDI_CAP_INPUT		0x00000002
-#define MIDI_CAP_OUTPUT		0x00000004
-#define MIDI_CAP_INOUT		(MIDI_CAP_INPUT|MIDI_CAP_OUTPUT)
-#define MIDI_CAP_VIRTUAL	0x00000008	/* Pseudo device */
-#define MIDI_CAP_MTCINPUT	0x00000010	/* Supports SNDCTL_MIDI_MTCINPUT */
-#define MIDI_CAP_CLIENT		0x00000020	/* Virtual client side device */
-#define MIDI_CAP_SERVER		0x00000040	/* Virtual server side device */
-#define MIDI_CAP_INTERNAL	0x00000080	/* Internal (synth) device */
-#define MIDI_CAP_EXTERNAL	0x00000100	/* external (MIDI port) device */
-#define MIDI_CAP_PTOP		0x00000200	/* Point to point link to one device */
-#define MIDI_CAP_MTC		0x00000400	/* MTC/SMPTE (control) device */
-  int magic;			/* Reserved for internal use */
-  int card_number;
-  int port_number;
-  int enabled;			/* 1=enabled, 0=device not ready at this moment */
-  int flags;			/* For internal use only - no practical meaning */
-  char handle[32];
-  oss_longname_t song_name;	/* Song name (if known) */
-  oss_label_t label;		/* Device label (if given) */
-  int latency;			/* In usecs, -1=unknown */
-  oss_devnode_t devnode;	/* Device special file name (absolute path) */
-  int legacy_device;		/* Legacy device mapping */
-  int filler[235];
-} oss_midi_info;
-
-typedef struct oss_card_info
-{
-  int card;
-  char shortname[16];
-  char longname[128];
-  int flags;
-  char hw_info[400];
-  int intr_count, ack_count;
-  int filler[154];
-} oss_card_info;
-
-#define SNDCTL_SYSINFO		__SIOR ('X', 1, oss_sysinfo)
-#define OSS_SYSINFO		SNDCTL_SYSINFO	/* Old name */
-
-#define SNDCTL_MIX_NRMIX	__SIOR ('X', 2, int)
-#define SNDCTL_MIX_NREXT	__SIOWR('X', 3, int)
-#define SNDCTL_MIX_EXTINFO	__SIOWR('X', 4, oss_mixext)
-#define SNDCTL_MIX_READ		__SIOWR('X', 5, oss_mixer_value)
-#define SNDCTL_MIX_WRITE	__SIOWR('X', 6, oss_mixer_value)
-
-#define SNDCTL_AUDIOINFO	__SIOWR('X', 7, oss_audioinfo)
-#define SNDCTL_MIX_ENUMINFO	__SIOWR('X', 8, oss_mixer_enuminfo)
-#define SNDCTL_MIDIINFO		__SIOWR('X', 9, oss_midi_info)
-#define SNDCTL_MIXERINFO	__SIOWR('X',10, oss_mixerinfo)
-#define SNDCTL_CARDINFO		__SIOWR('X',11, oss_card_info)
-#define SNDCTL_ENGINEINFO	__SIOWR('X',12, oss_audioinfo)
-#define SNDCTL_AUDIOINFO_EX	__SIOWR('X',13, oss_audioinfo)
-
-#define SNDCTL_MIX_DESCRIPTION	__SIOWR('X',14, oss_mixer_enuminfo)
-
-/* ioctl codes 'X', 200-255 are reserved for internal use */
-
-/*
- * Few more "globally" available ioctl calls.
- */
-#define SNDCTL_SETSONG		__SIOW ('Y', 2, oss_longname_t)
-#define SNDCTL_GETSONG		__SIOR ('Y', 2, oss_longname_t)
-#define SNDCTL_SETNAME		__SIOW ('Y', 3, oss_longname_t)
-#define SNDCTL_SETLABEL		__SIOW ('Y', 4, oss_label_t)
-#define SNDCTL_GETLABEL		__SIOR ('Y', 4, oss_label_t)
-/*
- * The "new" mixer API definitions end here.
- ***************************************
- */
-
-/*
- *********************************************************
- * Few routines that are included in -lOSSlib
- *
- * At this moment this interface is not used. OSSlib contains just
- * stubs that call the related system calls directly.
- */
-#ifdef OSSLIB
-extern int osslib_open (const char *path, int flags, int dummy);
-extern void osslib_close (int fd);
-extern int osslib_write (int fd, const void *buf, int count);
-extern int osslib_read (int fd, void *buf, int count);
-extern int osslib_ioctl (int fd, unsigned int request, void *arg);
-#else
-#  define osslib_open	open
-#  define osslib_close	close
-#  define osslib_write	write
-#  define osslib_read	read
-#  define osslib_ioctl	ioctl
-#endif
-
-#if 1
-#define SNDCTL_DSP_NONBLOCK		__SIO  ('P',14)	/* Obsolete. Not supported any more */
-#endif
-
-#if 1
-/*
- * Some obsolete macros that are not part of Open Sound System API.
- */
-#define SOUND_PCM_READ_RATE             SOUND_PCM_READ_RATE_is_obsolete
-#define SOUND_PCM_READ_BITS             SOUND_PCM_READ_BITS_is_obsolete
-#define SOUND_PCM_READ_CHANNELS         SOUND_PCM_READ_CHANNELS_is_obsolete
-#define SOUND_PCM_WRITE_RATE            SOUND_PCM_WRITE_RATE_is_obsolet_use_SNDCTL_DSP_SPEED_instead
-#define SOUND_PCM_WRITE_CHANNELS        SOUND_PCM_WRITE_CHANNELS_is_obsolete_use_SNDCTL_DSP_CHANNELS_instead
-#define SOUND_PCM_WRITE_BITS            SOUND_PCM_WRITE_BITS_is_obsolete_use_SNDCTL_DSP_SETFMT_instead
-#define SOUND_PCM_POST                  SOUND_PCM_POST_is_obsolete_use_SNDCTL_DSP_POST_instead
-#define SOUND_PCM_RESET                 SOUND_PCM_RESET_is_obsolete_use_SNDCTL_DSP_HALT_instead
-#define SOUND_PCM_SYNC                  SOUND_PCM_SYNC_is_obsolete_use_SNDCTL_DSP_SYNC_instead
-#define SOUND_PCM_SUBDIVIDE             SOUND_PCM_SUBDIVIDE_is_obsolete_use_SNDCTL_DSP_SUBDIVIDE_instead
-#define SOUND_PCM_SETFRAGMENT           SOUND_PCM_SETFRAGMENT_is_obsolete_use_SNDCTL_DSP_SETFRAGMENT_instead
-#define SOUND_PCM_GETFMTS               SOUND_PCM_GETFMTS_is_obsolete_use_SNDCTL_DSP_GETFMTS_instead
-#define SOUND_PCM_SETFMT                SOUND_PCM_SETFMT_is_obsolete_use_SNDCTL_DSP_SETFMT_instead
-#define SOUND_PCM_GETOSPACE             SOUND_PCM_GETOSPACE_is_obsolete_use_SNDCTL_DSP_GETOSPACE_instead
-#define SOUND_PCM_GETISPACE             SOUND_PCM_GETISPACE_is_obsolete_use_SNDCTL_DSP_GETISPACE_instead
-#define SOUND_PCM_NONBLOCK              SOUND_PCM_NONBLOCK_is_obsolete_use_SNDCTL_DSP_NONBLOCK_instead
-#define SOUND_PCM_GETCAPS               SOUND_PCM_GETCAPS_is_obsolete_use_SNDCTL_DSP_GETCAPS_instead
-#define SOUND_PCM_GETTRIGGER            SOUND_PCM_GETTRIGGER_is_obsolete_use_SNDCTL_DSP_GETTRIGGER_instead
-#define SOUND_PCM_SETTRIGGER            SOUND_PCM_SETTRIGGER_is_obsolete_use_SNDCTL_DSP_SETTRIGGER_instead
-#define SOUND_PCM_SETSYNCRO             SOUND_PCM_SETSYNCRO_is_obsolete_use_SNDCTL_DSP_SETSYNCRO_instead
-#define SOUND_PCM_GETIPTR               SOUND_PCM_GETIPTR_is_obsolete_use_SNDCTL_DSP_GETIPTR_instead
-#define SOUND_PCM_GETOPTR               SOUND_PCM_GETOPTR_is_obsolete_use_SNDCTL_DSP_GETOPTR_instead
-#define SOUND_PCM_MAPINBUF              SOUND_PCM_MAPINBUF_is_obsolete_use_SNDCTL_DSP_MAPINBUF_instead
-#define SOUND_PCM_MAPOUTBUF             SOUND_PCM_MAPOUTBUF_is_obsolete_use_SNDCTL_DSP_MAPOUTBUF_instead
-#endif
-
-#endif
diff --git a/sys/oss4/oss4-source.c b/sys/oss4/oss4-source.c
deleted file mode 100644
index d3b92f716..000000000
--- a/sys/oss4/oss4-source.c
+++ /dev/null
@@ -1,1006 +0,0 @@
-/* GStreamer OSS4 audio source
- * Copyright (C) 2007-2008 Tim-Philipp Müller <tim centricular net>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-/**
- * SECTION:element-oss4src
- *
- * This element lets you record sound using the Open Sound System (OSS)
- * version 4.
- * 
- * <refsect2>
- * <title>Example pipelines</title>
- * |[
- * gst-launch -v oss4src ! queue ! audioconvert ! vorbisenc ! oggmux ! filesink location=mymusic.ogg
- * ]| will record sound from your sound card using OSS4 and encode it to an
- * Ogg/Vorbis file (this will only work if your mixer settings are right
- * and the right inputs areenabled etc.)
- * </refsect2>
- *
- * Since: 0.10.7
- */
-
-/* FIXME: make sure we're not doing ioctls from the app thread (e.g. via the
- * mixer interface) while recording */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/ioctl.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <unistd.h>
-#include <string.h>
-
-#include <gst/interfaces/mixer.h>
-#include <gst/gst-i18n-plugin.h>
-
-#define NO_LEGACY_MIXER
-#include "oss4-audio.h"
-#include "oss4-source.h"
-#include "oss4-property-probe.h"
-#include "oss4-soundcard.h"
-
-#define GST_OSS4_SOURCE_IS_OPEN(src)  (GST_OSS4_SOURCE(src)->fd != -1)
-
-GST_DEBUG_CATEGORY_EXTERN (oss4src_debug);
-#define GST_CAT_DEFAULT oss4src_debug
-
-#define DEFAULT_DEVICE       NULL
-#define DEFAULT_DEVICE_NAME  NULL
-
-enum
-{
-  PROP_0,
-  PROP_DEVICE,
-  PROP_DEVICE_NAME
-};
-
-static void gst_oss4_source_init_interfaces (GType type);
-
-GST_BOILERPLATE_FULL (GstOss4Source, gst_oss4_source, GstAudioSrc,
-    GST_TYPE_AUDIO_SRC, gst_oss4_source_init_interfaces);
-
-static void gst_oss4_source_get_property (GObject * object, guint prop_id,
-    GValue * value, GParamSpec * pspec);
-static void gst_oss4_source_set_property (GObject * object, guint prop_id,
-    const GValue * value, GParamSpec * pspec);
-
-static void gst_oss4_source_dispose (GObject * object);
-static void gst_oss4_source_finalize (GstOss4Source * osssrc);
-
-static GstCaps *gst_oss4_source_getcaps (GstBaseSrc * bsrc);
-
-static gboolean gst_oss4_source_open (GstAudioSrc * asrc,
-    gboolean silent_errors);
-static gboolean gst_oss4_source_open_func (GstAudioSrc * asrc);
-static gboolean gst_oss4_source_close (GstAudioSrc * asrc);
-static gboolean gst_oss4_source_prepare (GstAudioSrc * asrc,
-    GstRingBufferSpec * spec);
-static gboolean gst_oss4_source_unprepare (GstAudioSrc * asrc);
-static guint gst_oss4_source_read (GstAudioSrc * asrc, gpointer data,
-    guint length);
-static guint gst_oss4_source_delay (GstAudioSrc * asrc);
-static void gst_oss4_source_reset (GstAudioSrc * asrc);
-
-static void
-gst_oss4_source_base_init (gpointer g_class)
-{
-  GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
-  GstPadTemplate *templ;
-
-  gst_element_class_set_details_simple (element_class,
-      "OSS v4 Audio Source", "Source/Audio",
-      "Capture from a sound card via OSS version 4",
-      "Tim-Philipp Müller <tim centricular net>");
-
-  templ = gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
-      gst_oss4_audio_get_template_caps ());
-  gst_element_class_add_pad_template (element_class, templ);
-}
-static void
-gst_oss4_source_class_init (GstOss4SourceClass * klass)
-{
-  GObjectClass *gobject_class;
-  GstElementClass *gstelement_class;
-  GstBaseSrcClass *gstbasesrc_class;
-  GstBaseAudioSrcClass *gstbaseaudiosrc_class;
-  GstAudioSrcClass *gstaudiosrc_class;
-
-  gobject_class = (GObjectClass *) klass;
-  gstelement_class = (GstElementClass *) klass;
-  gstbasesrc_class = (GstBaseSrcClass *) klass;
-  gstbaseaudiosrc_class = (GstBaseAudioSrcClass *) klass;
-  gstaudiosrc_class = (GstAudioSrcClass *) klass;
-
-  gobject_class->dispose = GST_DEBUG_FUNCPTR (gst_oss4_source_dispose);
-  gobject_class->finalize =
-      (GObjectFinalizeFunc) GST_DEBUG_FUNCPTR (gst_oss4_source_finalize);
-  gobject_class->get_property =
-      GST_DEBUG_FUNCPTR (gst_oss4_source_get_property);
-  gobject_class->set_property =
-      GST_DEBUG_FUNCPTR (gst_oss4_source_set_property);
-
-  gstbasesrc_class->get_caps = GST_DEBUG_FUNCPTR (gst_oss4_source_getcaps);
-
-  gstaudiosrc_class->open = GST_DEBUG_FUNCPTR (gst_oss4_source_open_func);
-  gstaudiosrc_class->prepare = GST_DEBUG_FUNCPTR (gst_oss4_source_prepare);
-  gstaudiosrc_class->unprepare = GST_DEBUG_FUNCPTR (gst_oss4_source_unprepare);
-  gstaudiosrc_class->close = GST_DEBUG_FUNCPTR (gst_oss4_source_close);
-  gstaudiosrc_class->read = GST_DEBUG_FUNCPTR (gst_oss4_source_read);
-  gstaudiosrc_class->delay = GST_DEBUG_FUNCPTR (gst_oss4_source_delay);
-  gstaudiosrc_class->reset = GST_DEBUG_FUNCPTR (gst_oss4_source_reset);
-
-  g_object_class_install_property (gobject_class, PROP_DEVICE,
-      g_param_spec_string ("device", "Device",
-          "OSS4 device (e.g. /dev/oss/hdaudio0/pcm0 or /dev/dspN) "
-          "(NULL = use first available device)",
-          DEFAULT_DEVICE, G_PARAM_READWRITE));
-
-  g_object_class_install_property (gobject_class, PROP_DEVICE_NAME,
-      g_param_spec_string ("device-name", "Device name",
-          "Human-readable name of the sound device", DEFAULT_DEVICE_NAME,
-          G_PARAM_READABLE));
-}
-
-static void
-gst_oss4_source_init (GstOss4Source * osssrc, GstOss4SourceClass * g_class)
-{
-  const gchar *device;
-
-  device = g_getenv ("AUDIODEV");
-  if (device == NULL)
-    device = DEFAULT_DEVICE;
-
-  osssrc->fd = -1;
-  osssrc->device = g_strdup (device);
-  osssrc->device_name = g_strdup (DEFAULT_DEVICE_NAME);
-  osssrc->device_name = NULL;
-}
-
-static void
-gst_oss4_source_finalize (GstOss4Source * oss)
-{
-  g_free (oss->device);
-  oss->device = NULL;
-
-  g_list_free (oss->property_probe_list);
-  oss->property_probe_list = NULL;
-
-  G_OBJECT_CLASS (parent_class)->finalize ((GObject *) (oss));
-}
-
-static void
-gst_oss4_source_dispose (GObject * object)
-{
-  GstOss4Source *oss = GST_OSS4_SOURCE (object);
-
-  if (oss->probed_caps) {
-    gst_caps_unref (oss->probed_caps);
-    oss->probed_caps = NULL;
-  }
-
-  G_OBJECT_CLASS (parent_class)->dispose (object);
-}
-
-static void
-gst_oss4_source_set_property (GObject * object, guint prop_id,
-    const GValue * value, GParamSpec * pspec)
-{
-  GstOss4Source *oss;
-
-  oss = GST_OSS4_SOURCE (object);
-
-  switch (prop_id) {
-    case PROP_DEVICE:
-      GST_OBJECT_LOCK (oss);
-      if (oss->fd == -1) {
-        g_free (oss->device);
-        oss->device = g_value_dup_string (value);
-        g_free (oss->device_name);
-        oss->device_name = NULL;
-      } else {
-        g_warning ("%s: can't change \"device\" property while audio source "
-            "is open", GST_OBJECT_NAME (oss));
-      }
-      GST_OBJECT_UNLOCK (oss);
-      break;
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-  }
-}
-
-static void
-gst_oss4_source_get_property (GObject * object, guint prop_id,
-    GValue * value, GParamSpec * pspec)
-{
-  GstOss4Source *oss;
-
-  oss = GST_OSS4_SOURCE (object);
-
-  switch (prop_id) {
-    case PROP_DEVICE:
-      GST_OBJECT_LOCK (oss);
-      g_value_set_string (value, oss->device);
-      GST_OBJECT_UNLOCK (oss);
-      break;
-    case PROP_DEVICE_NAME:
-      GST_OBJECT_LOCK (oss);
-      /* If device is set, try to retrieve the name even if we're not open */
-      if (oss->fd == -1 && oss->device != NULL) {
-        if (gst_oss4_source_open (GST_AUDIO_SRC (oss), TRUE)) {
-          g_value_set_string (value, oss->device_name);
-          gst_oss4_source_close (GST_AUDIO_SRC (oss));
-        } else {
-          gchar *name = NULL;
-
-          gst_oss4_property_probe_find_device_name_nofd (GST_OBJECT (oss),
-              oss->device, &name);
-          g_value_set_string (value, name);
-          g_free (name);
-        }
-      } else {
-        g_value_set_string (value, oss->device_name);
-      }
-
-      GST_OBJECT_UNLOCK (oss);
-      break;
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-  }
-}
-
-static GstCaps *
-gst_oss4_source_getcaps (GstBaseSrc * bsrc)
-{
-  GstOss4Source *oss;
-  GstCaps *caps;
-
-  oss = GST_OSS4_SOURCE (bsrc);
-
-  if (oss->fd == -1) {
-    caps = gst_caps_copy (gst_oss4_audio_get_template_caps ());
-  } else if (oss->probed_caps) {
-    caps = gst_caps_copy (oss->probed_caps);
-  } else {
-    caps = gst_oss4_audio_probe_caps (GST_OBJECT (oss), oss->fd);
-    if (caps != NULL && !gst_caps_is_empty (caps)) {
-      oss->probed_caps = gst_caps_copy (caps);
-    }
-  }
-
-  return caps;
-}
-
-/* note: we must not take the object lock here unless we fix up get_property */
-static gboolean
-gst_oss4_source_open (GstAudioSrc * asrc, gboolean silent_errors)
-{
-  GstOss4Source *oss;
-  gchar *device;
-  int mode;
-
-  oss = GST_OSS4_SOURCE (asrc);
-
-  if (oss->device)
-    device = g_strdup (oss->device);
-  else
-    device = gst_oss4_audio_find_device (GST_OBJECT_CAST (oss));
-
-  /* desperate times, desperate measures */
-  if (device == NULL)
-    device = g_strdup ("/dev/dsp0");
-
-  GST_INFO_OBJECT (oss, "Trying to open OSS4 device '%s'", device);
-
-  /* we open in non-blocking mode even if we don't really want to do writes
-   * non-blocking because we can't be sure that this is really a genuine
-   * OSS4 device with well-behaved drivers etc. We really don't want to
-   * hang forever under any circumstances. */
-  oss->fd = open (device, O_RDONLY | O_NONBLOCK, 0);
-  if (oss->fd == -1) {
-    switch (errno) {
-      case EBUSY:
-        goto busy;
-      case EACCES:
-        goto no_permission;
-      default:
-        goto open_failed;
-    }
-  }
-
-  GST_INFO_OBJECT (oss, "Opened device");
-
-  /* Make sure it's OSS4. If it's old OSS, let osssink handle it */
-  if (!gst_oss4_audio_check_version (GST_OBJECT_CAST (oss), oss->fd))
-    goto legacy_oss;
-
-  /* now remove the non-blocking flag. */
-  mode = fcntl (oss->fd, F_GETFL);
-  mode &= ~O_NONBLOCK;
-  if (fcntl (oss->fd, F_SETFL, mode) < 0) {
-    /* some drivers do no support unsetting the non-blocking flag, try to
-     * close/open the device then. This is racy but we error out properly. */
-    GST_WARNING_OBJECT (oss, "failed to unset O_NONBLOCK (buggy driver?), "
-        "will try to re-open device now");
-    gst_oss4_source_close (asrc);
-    if ((oss->fd = open (device, O_RDONLY, 0)) == -1)
-      goto non_block;
-  }
-
-  oss->open_device = device;
-
-  /* not using ENGINEINFO here because it sometimes returns a different and
-   * less useful name than AUDIOINFO for the same device */
-  if (!gst_oss4_property_probe_find_device_name (GST_OBJECT (oss), oss->fd,
-          oss->open_device, &oss->device_name)) {
-    oss->device_name = NULL;
-  }
-
-  return TRUE;
-
-  /* ERRORS */
-busy:
-  {
-    if (!silent_errors) {
-      GST_ELEMENT_ERROR (oss, RESOURCE, BUSY,
-          (_("Could not open audio device for playback. "
-                  "Device is being used by another application.")), (NULL));
-    }
-    g_free (device);
-    return FALSE;
-  }
-no_permission:
-  {
-    if (!silent_errors) {
-      GST_ELEMENT_ERROR (oss, RESOURCE, OPEN_READ,
-          (_("Could not open audio device for playback. "
-                  "You don't have permission to open the device.")),
-          GST_ERROR_SYSTEM);
-    }
-    g_free (device);
-    return FALSE;
-  }
-open_failed:
-  {
-    if (!silent_errors) {
-      GST_ELEMENT_ERROR (oss, RESOURCE, OPEN_READ,
-          (_("Could not open audio device for playback.")), GST_ERROR_SYSTEM);
-    }
-    g_free (device);
-    return FALSE;
-  }
-legacy_oss:
-  {
-    gst_oss4_source_close (asrc);
-    if (!silent_errors) {
-      GST_ELEMENT_ERROR (oss, RESOURCE, OPEN_READ,
-          (_("Could not open audio device for playback. "
-                  "This version of the Open Sound System is not supported by this "
-                  "element.")), ("Try the 'osssink' element instead"));
-    }
-    g_free (device);
-    return FALSE;
-  }
-non_block:
-  {
-    if (!silent_errors) {
-      GST_ELEMENT_ERROR (oss, RESOURCE, SETTINGS, (NULL),
-          ("Unable to set device %s into non-blocking mode: %s",
-              oss->device, g_strerror (errno)));
-    }
-    g_free (device);
-    return FALSE;
-  }
-}
-
-static gboolean
-gst_oss4_source_open_func (GstAudioSrc * asrc)
-{
-  return gst_oss4_source_open (asrc, FALSE);
-}
-
-static void
-gst_oss4_source_free_mixer_tracks (GstOss4Source * oss)
-{
-  g_list_foreach (oss->tracks, (GFunc) g_object_unref, NULL);
-  g_list_free (oss->tracks);
-  oss->tracks = NULL;
-}
-
-static gboolean
-gst_oss4_source_close (GstAudioSrc * asrc)
-{
-  GstOss4Source *oss;
-
-  oss = GST_OSS4_SOURCE (asrc);
-
-  if (oss->fd != -1) {
-    GST_DEBUG_OBJECT (oss, "closing device");
-    close (oss->fd);
-    oss->fd = -1;
-  }
-
-  oss->bytes_per_sample = 0;
-
-  gst_caps_replace (&oss->probed_caps, NULL);
-
-  g_free (oss->open_device);
-  oss->open_device = NULL;
-
-  g_free (oss->device_name);
-  oss->device_name = NULL;
-
-  gst_oss4_source_free_mixer_tracks (oss);
-
-  return TRUE;
-}
-
-static gboolean
-gst_oss4_source_prepare (GstAudioSrc * asrc, GstRingBufferSpec * spec)
-{
-  GstOss4Source *oss;
-
-  oss = GST_OSS4_SOURCE (asrc);
-
-  if (!gst_oss4_audio_set_format (GST_OBJECT_CAST (oss), oss->fd, spec)) {
-    GST_WARNING_OBJECT (oss, "Couldn't set requested format %" GST_PTR_FORMAT,
-        spec->caps);
-    return FALSE;
-  }
-
-  oss->bytes_per_sample = spec->bytes_per_sample;
-  return TRUE;
-}
-
-static gboolean
-gst_oss4_source_unprepare (GstAudioSrc * asrc)
-{
-  /* could do a SNDCTL_DSP_HALT, but the OSS manual recommends a close/open,
-   * since HALT won't properly reset some devices, apparently */
-
-  if (!gst_oss4_source_close (asrc))
-    goto couldnt_close;
-
-  if (!gst_oss4_source_open_func (asrc))
-    goto couldnt_reopen;
-
-  return TRUE;
-
-  /* ERRORS */
-couldnt_close:
-  {
-    GST_DEBUG_OBJECT (asrc, "Couldn't close the audio device");
-    return FALSE;
-  }
-couldnt_reopen:
-  {
-    GST_DEBUG_OBJECT (asrc, "Couldn't reopen the audio device");
-    return FALSE;
-  }
-}
-
-static guint
-gst_oss4_source_read (GstAudioSrc * asrc, gpointer data, guint length)
-{
-  GstOss4Source *oss;
-  int n;
-
-  oss = GST_OSS4_SOURCE_CAST (asrc);
-
-  n = read (oss->fd, data, length);
-  GST_LOG_OBJECT (asrc, "%u bytes, %u samples", n, n / oss->bytes_per_sample);
-
-  if (G_UNLIKELY (n < 0)) {
-    switch (errno) {
-      case ENOTSUP:
-      case EACCES:{
-        /* This is the most likely cause, I think */
-        GST_ELEMENT_ERROR (asrc, RESOURCE, READ,
-            (_("Recording is not supported by this audio device.")),
-            ("read: %s (device: %s) (maybe this is an output-only device?)",
-                g_strerror (errno), oss->open_device));
-        break;
-      }
-      default:{
-        GST_ELEMENT_ERROR (asrc, RESOURCE, READ,
-            (_("Error recording from audio device.")),
-            ("read: %s (device: %s)", g_strerror (errno), oss->open_device));
-        break;
-      }
-    }
-  }
-
-  return (guint) n;
-}
-
-static guint
-gst_oss4_source_delay (GstAudioSrc * asrc)
-{
-  audio_buf_info info = { 0, };
-  GstOss4Source *oss;
-  guint delay;
-
-  oss = GST_OSS4_SOURCE_CAST (asrc);
-
-  if (ioctl (oss->fd, SNDCTL_DSP_GETISPACE, &info) == -1) {
-    GST_LOG_OBJECT (oss, "GETISPACE failed: %s", g_strerror (errno));
-    return 0;
-  }
-
-  delay = (info.fragstotal * info.fragsize) - info.bytes;
-  GST_LOG_OBJECT (oss, "fragstotal:%d, fragsize:%d, bytes:%d, delay:%d",
-      info.fragstotal, info.fragsize, info.bytes, delay);
-  return delay;
-}
-
-static void
-gst_oss4_source_reset (GstAudioSrc * asrc)
-{
-  /* There's nothing we can do here really: OSS can't handle access to the
-   * same device/fd from multiple threads and might deadlock or blow up in
-   * other ways if we try an ioctl SNDCTL_DSP_HALT or similar */
-}
-
-/* GstMixer interface, which we abuse here for input selection, because we
- * don't have a proper interface for that and because that's what
- * gnome-sound-recorder does. */
-
-/* GstMixerTrack is a plain GObject, so let's just use the GLib macro here */
-G_DEFINE_TYPE (GstOss4SourceInput, gst_oss4_source_input, GST_TYPE_MIXER_TRACK);
-
-static void
-gst_oss4_source_input_class_init (GstOss4SourceInputClass * klass)
-{
-  /* nothing to do here */
-}
-
-static void
-gst_oss4_source_input_init (GstOss4SourceInput * i)
-{
-  /* nothing to do here */
-}
-
-#if 0
-
-static void
-gst_ossmixer_ensure_track_list (GstOssMixer * mixer)
-{
-  gint i, master = -1;
-
-  g_return_if_fail (mixer->fd != -1);
-
-  if (mixer->tracklist)
-    return;
-
-  /* find master volume */
-  if (mixer->devmask & SOUND_MASK_VOLUME)
-    master = SOUND_MIXER_VOLUME;
-  else if (mixer->devmask & SOUND_MASK_PCM)
-    master = SOUND_MIXER_PCM;
-  else if (mixer->devmask & SOUND_MASK_SPEAKER)
-    master = SOUND_MIXER_SPEAKER;       /* doubtful... */
-  /* else: no master, so we won't set any */
-
-  /* build track list */
-  for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
-    if (mixer->devmask & (1 << i)) {
-      GstMixerTrack *track;
-      gboolean input = FALSE, stereo = FALSE, record = FALSE;
-
-      /* track exists, make up capabilities */
-      if (MASK_BIT_IS_SET (mixer->stereomask, i))
-        stereo = TRUE;
-      if (MASK_BIT_IS_SET (mixer->recmask, i))
-        input = TRUE;
-      if (MASK_BIT_IS_SET (mixer->recdevs, i))
-        record = TRUE;
-
-      /* do we want mixer in our list? */
-      if (!((mixer->dir & GST_OSS_MIXER_CAPTURE && input == TRUE) ||
-              (mixer->dir & GST_OSS_MIXER_PLAYBACK && i != SOUND_MIXER_PCM)))
-        /* the PLAYBACK case seems hacky, but that's how 0.8 had it */
-        continue;
-
-      /* add track to list */
-      track = gst_ossmixer_track_new (mixer->fd, i, stereo ? 2 : 1,
-          (record ? GST_MIXER_TRACK_RECORD : 0) |
-          (input ? GST_MIXER_TRACK_INPUT :
-              GST_MIXER_TRACK_OUTPUT) |
-          ((master != i) ? 0 : GST_MIXER_TRACK_MASTER));
-      mixer->tracklist = g_list_append (mixer->tracklist, track);
-    }
-  }
-}
-
-/* unused with G_DISABLE_* */
-static G_GNUC_UNUSED gboolean
-gst_ossmixer_contains_track (GstOssMixer * mixer, GstOssMixerTrack * osstrack)
-{
-  const GList *item;
-
-  for (item = mixer->tracklist; item != NULL; item = item->next)
-    if (item->data == osstrack)
-      return TRUE;
-
-  return FALSE;
-}
-
-const GList *
-gst_ossmixer_list_tracks (GstOssMixer * mixer)
-{
-  gst_ossmixer_ensure_track_list (mixer);
-
-  return (const GList *) mixer->tracklist;
-}
-
-void
-gst_ossmixer_get_volume (GstOssMixer * mixer,
-    GstMixerTrack * track, gint * volumes)
-{
-  gint volume;
-  GstOssMixerTrack *osstrack = GST_OSSMIXER_TRACK (track);
-
-  g_return_if_fail (mixer->fd != -1);
-  g_return_if_fail (gst_ossmixer_contains_track (mixer, osstrack));
-
-  if (track->flags & GST_MIXER_TRACK_MUTE) {
-    volumes[0] = osstrack->lvol;
-    if (track->num_channels == 2) {
-      volumes[1] = osstrack->rvol;
-    }
-  } else {
-    /* get */
-    if (ioctl (mixer->fd, MIXER_READ (osstrack->track_num), &volume) < 0) {
-      g_warning ("Error getting recording device (%d) volume: %s",
-          osstrack->track_num, g_strerror (errno));
-      volume = 0;
-    }
-
-    osstrack->lvol = volumes[0] = (volume & 0xff);
-    if (track->num_channels == 2) {
-      osstrack->rvol = volumes[1] = ((volume >> 8) & 0xff);
-    }
-  }
-}
-
-void
-gst_ossmixer_set_mute (GstOssMixer * mixer, GstMixerTrack * track,
-    gboolean mute)
-{
-  int volume;
-  GstOssMixerTrack *osstrack = GST_OSSMIXER_TRACK (track);
-
-  g_return_if_fail (mixer->fd != -1);
-  g_return_if_fail (gst_ossmixer_contains_track (mixer, osstrack));
-
-  if (mute) {
-    volume = 0;
-  } else {
-    volume = (osstrack->lvol & 0xff);
-    if (MASK_BIT_IS_SET (mixer->stereomask, osstrack->track_num)) {
-      volume |= ((osstrack->rvol & 0xff) << 8);
-    }
-  }
-
-  if (ioctl (mixer->fd, MIXER_WRITE (osstrack->track_num), &volume) < 0) {
-    g_warning ("Error setting mixer recording device volume (0x%x): %s",
-        volume, g_strerror (errno));
-    return;
-  }
-
-  if (mute) {
-    track->flags |= GST_MIXER_TRACK_MUTE;
-  } else {
-    track->flags &= ~GST_MIXER_TRACK_MUTE;
-  }
-}
-#endif
-
-static gint
-gst_oss4_source_mixer_get_current_input (GstOss4Source * oss)
-{
-  int cur = -1;
-
-  if (ioctl (oss->fd, SNDCTL_DSP_GET_RECSRC, &cur) == -1 || cur < 0)
-    return -1;
-
-  return cur;
-}
-
-static const gchar *
-gst_oss4_source_mixer_update_record_flags (GstOss4Source * oss, gint cur_route)
-{
-  const gchar *cur_name = "";
-  GList *t;
-
-  for (t = oss->tracks; t != NULL; t = t->next) {
-    GstMixerTrack *track = t->data;
-
-    if (GST_OSS4_SOURCE_INPUT (track)->route == cur_route) {
-      if (!GST_MIXER_TRACK_HAS_FLAG (track, GST_MIXER_TRACK_RECORD)) {
-        track->flags |= GST_MIXER_TRACK_RECORD;
-        /* no point in sending a mixer-record-changes message here */
-      }
-      cur_name = track->label;
-    } else {
-      if (GST_MIXER_TRACK_HAS_FLAG (track, GST_MIXER_TRACK_RECORD)) {
-        track->flags &= ~GST_MIXER_TRACK_RECORD;
-        /* no point in sending a mixer-record-changes message here */
-      }
-    }
-  }
-
-  return cur_name;
-}
-
-static const GList *
-gst_oss4_source_mixer_list_tracks (GstMixer * mixer)
-{
-  oss_mixer_enuminfo names = { 0, };
-  GstOss4Source *oss;
-  const gchar *cur_name;
-  GList *tracks = NULL;
-  gint i, cur;
-
-  g_return_val_if_fail (mixer != NULL, NULL);
-  g_return_val_if_fail (GST_IS_OSS4_SOURCE (mixer), NULL);
-  g_return_val_if_fail (GST_OSS4_SOURCE_IS_OPEN (mixer), NULL);
-
-  oss = GST_OSS4_SOURCE (mixer);
-
-  if (oss->tracks != NULL && oss->tracks_static)
-    goto done;
-
-  if (ioctl (oss->fd, SNDCTL_DSP_GET_RECSRC_NAMES, &names) == -1)
-    goto get_recsrc_names_error;
-
-  oss->tracks_static = (names.version == 0);
-
-  GST_INFO_OBJECT (oss, "%d inputs (list is static: %s):", names.nvalues,
-      (oss->tracks_static) ? "yes" : "no");
-
-  for (i = 0; i < MIN (names.nvalues, OSS_ENUM_MAXVALUE + 1); ++i) {
-    GstMixerTrack *track;
-
-    track = g_object_new (GST_TYPE_OSS4_SOURCE_INPUT, NULL);
-    track->label = g_strdup (&names.strings[names.strindex[i]]);
-    track->flags = GST_MIXER_TRACK_INPUT;
-    track->num_channels = 2;
-    track->min_volume = 0;
-    track->max_volume = 100;
-    GST_OSS4_SOURCE_INPUT (track)->route = i;
-
-    GST_INFO_OBJECT (oss, " [%d] %s", i, track->label);
-    tracks = g_list_append (tracks, track);
-  }
-
-  gst_oss4_source_free_mixer_tracks (oss);
-  oss->tracks = tracks;
-
-done:
-
-  /* update RECORD flags */
-  cur = gst_oss4_source_mixer_get_current_input (oss);
-  cur_name = gst_oss4_source_mixer_update_record_flags (oss, cur);
-  GST_DEBUG_OBJECT (oss, "current input route: %d (%s)", cur, cur_name);
-
-  return (const GList *) oss->tracks;
-
-/* ERRORS */
-get_recsrc_names_error:
-  {
-    GST_WARNING_OBJECT (oss, "GET_RECSRC_NAMES failed: %s", g_strerror (errno));
-    return NULL;
-  }
-}
-
-static void
-gst_oss4_source_mixer_set_volume (GstMixer * mixer, GstMixerTrack * track,
-    gint * volumes)
-{
-  GstOss4Source *oss;
-  int new_vol, cur;
-
-  g_return_if_fail (mixer != NULL);
-  g_return_if_fail (track != NULL);
-  g_return_if_fail (GST_IS_MIXER_TRACK (track));
-  g_return_if_fail (GST_IS_OSS4_SOURCE (mixer));
-  g_return_if_fail (GST_OSS4_SOURCE_IS_OPEN (mixer));
-
-  oss = GST_OSS4_SOURCE (mixer);
-
-  cur = gst_oss4_source_mixer_get_current_input (oss);
-  if (cur != GST_OSS4_SOURCE_INPUT (track)->route) {
-    GST_DEBUG_OBJECT (oss, "track not selected input route, ignoring request");
-    return;
-  }
-
-  new_vol = (volumes[1] << 8) | volumes[0];
-  if (ioctl (oss->fd, SNDCTL_DSP_SETRECVOL, &new_vol) == -1) {
-    GST_WARNING_OBJECT (oss, "SETRECVOL failed: %s", g_strerror (errno));
-  }
-}
-
-static void
-gst_oss4_source_mixer_get_volume (GstMixer * mixer, GstMixerTrack * track,
-    gint * volumes)
-{
-  GstOss4Source *oss;
-  int cur;
-
-  g_return_if_fail (mixer != NULL);
-  g_return_if_fail (GST_IS_OSS4_SOURCE (mixer));
-  g_return_if_fail (GST_OSS4_SOURCE_IS_OPEN (mixer));
-
-  oss = GST_OSS4_SOURCE (mixer);
-
-  cur = gst_oss4_source_mixer_get_current_input (oss);
-  if (cur != GST_OSS4_SOURCE_INPUT (track)->route) {
-    volumes[0] = 0;
-    volumes[1] = 0;
-  } else {
-    int vol = -1;
-
-    if (ioctl (oss->fd, SNDCTL_DSP_GETRECVOL, &vol) == -1 || vol < 0) {
-      GST_WARNING_OBJECT (oss, "GETRECVOL failed: %s", g_strerror (errno));
-      volumes[0] = 100;
-      volumes[1] = 100;
-    } else {
-      volumes[0] = MIN (100, vol & 0xff);
-      volumes[1] = MIN (100, (vol >> 8) & 0xff);
-    }
-  }
-}
-
-static void
-gst_oss4_source_mixer_set_record (GstMixer * mixer, GstMixerTrack * track,
-    gboolean record)
-{
-  GstOss4Source *oss;
-  const gchar *cur_name;
-  gint cur;
-
-  g_return_if_fail (mixer != NULL);
-  g_return_if_fail (track != NULL);
-  g_return_if_fail (GST_IS_MIXER_TRACK (track));
-  g_return_if_fail (GST_IS_OSS4_SOURCE (mixer));
-  g_return_if_fail (GST_OSS4_SOURCE_IS_OPEN (mixer));
-
-  oss = GST_OSS4_SOURCE (mixer);
-
-  cur = gst_oss4_source_mixer_get_current_input (oss);
-
-  /* stop recording for an input that's not selected anyway => nothing to do */
-  if (!record && cur != GST_OSS4_SOURCE_INPUT (track)->route)
-    goto done;
-
-  /* select recording for an input that's already selected => nothing to do
-   * (or should we mess with the recording volume in this case maybe?) */
-  if (record && cur == GST_OSS4_SOURCE_INPUT (track)->route)
-    goto done;
-
-  /* make current input stop recording: we can't really make an input stop
-   * recording, we can only select an input FOR recording, so we'll just ignore
-   * all requests to stop for now */
-  if (!record) {
-    GST_WARNING_OBJECT (oss, "Can't un-select an input as such, only switch "
-        "to a different input source");
-    /* FIXME: set recording volume to 0 maybe? */
-  } else {
-    int new_route = GST_OSS4_SOURCE_INPUT (track)->route;
-
-    /* select this input for recording */
-
-    if (ioctl (oss->fd, SNDCTL_DSP_SET_RECSRC, &new_route) == -1) {
-      GST_WARNING_OBJECT (oss, "Could not select input %d for recording: %s",
-          new_route, g_strerror (errno));
-    } else {
-      cur = new_route;
-    }
-  }
-
-done:
-
-  cur_name = gst_oss4_source_mixer_update_record_flags (oss, cur);
-  GST_DEBUG_OBJECT (oss, "active input route: %d (%s)", cur, cur_name);
-}
-
-static void
-gst_oss4_source_mixer_set_mute (GstMixer * mixer, GstMixerTrack * track,
-    gboolean mute)
-{
-  GstOss4Source *oss;
-
-  g_return_if_fail (mixer != NULL);
-  g_return_if_fail (track != NULL);
-  g_return_if_fail (GST_IS_MIXER_TRACK (track));
-  g_return_if_fail (GST_IS_OSS4_SOURCE (mixer));
-  g_return_if_fail (GST_OSS4_SOURCE_IS_OPEN (mixer));
-
-  oss = GST_OSS4_SOURCE (mixer);
-
-  /* FIXME: implement gst_oss4_source_mixer_set_mute() - what to do here? */
-  /* oss4_mixer_set_mute (mixer->mixer, track, mute); */
-}
-
-static void
-gst_oss4_source_mixer_interface_init (GstMixerClass * klass)
-{
-  GST_MIXER_TYPE (klass) = GST_MIXER_HARDWARE;
-
-  klass->list_tracks = gst_oss4_source_mixer_list_tracks;
-  klass->set_volume = gst_oss4_source_mixer_set_volume;
-  klass->get_volume = gst_oss4_source_mixer_get_volume;
-  klass->set_mute = gst_oss4_source_mixer_set_mute;
-  klass->set_record = gst_oss4_source_mixer_set_record;
-}
-
-/* Implement the horror that is GstImplementsInterface */
-
-static gboolean
-gst_oss4_source_mixer_supported (GstImplementsInterface * iface,
-    GType iface_type)
-{
-  GstOss4Source *oss;
-  gboolean is_open;
-
-  g_return_val_if_fail (GST_IS_OSS4_SOURCE (iface), FALSE);
-  g_return_val_if_fail (iface_type == GST_TYPE_MIXER, FALSE);
-
-  oss = GST_OSS4_SOURCE (iface);
-
-  GST_OBJECT_LOCK (oss);
-  is_open = GST_OSS4_SOURCE_IS_OPEN (iface);
-  GST_OBJECT_UNLOCK (oss);
-
-  return is_open;
-}
-
-static void
-gst_oss4_source_mixer_implements_interface_init (GstImplementsInterfaceClass *
-    klass)
-{
-  klass->supported = gst_oss4_source_mixer_supported;
-}
-
-static void
-gst_oss4_source_init_interfaces (GType type)
-{
-  static const GInterfaceInfo implements_iface_info = {
-    (GInterfaceInitFunc) gst_oss4_source_mixer_implements_interface_init,
-    NULL,
-    NULL,
-  };
-  static const GInterfaceInfo mixer_iface_info = {
-    (GInterfaceInitFunc) gst_oss4_source_mixer_interface_init,
-    NULL,
-    NULL,
-  };
-
-  g_type_add_interface_static (type, GST_TYPE_IMPLEMENTS_INTERFACE,
-      &implements_iface_info);
-  g_type_add_interface_static (type, GST_TYPE_MIXER, &mixer_iface_info);
-
-  gst_oss4_add_property_probe_interface (type);
-}
diff --git a/sys/oss4/oss4-source.h b/sys/oss4/oss4-source.h
deleted file mode 100644
index 3a86b43ad..000000000
--- a/sys/oss4/oss4-source.h
+++ /dev/null
@@ -1,89 +0,0 @@
-/* GStreamer OSS4 audio source
- * Copyright (C) 2007-2008 Tim-Philipp Müller <tim centricular net>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef GST_OSS4_SOURCE_H
-#define GST_OSS4_SOURCE_H
-
-#include <gst/gst.h>
-#include <gst/audio/gstaudiosrc.h>
-#include <gst/interfaces/mixertrack.h>
-
-G_BEGIN_DECLS
-
-#define GST_TYPE_OSS4_SOURCE            (gst_oss4_source_get_type())
-#define GST_OSS4_SOURCE(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OSS4_SOURCE,GstOss4Source))
-#define GST_OSS4_SOURCE_CAST(obj)       ((GstOss4Source *)(obj))
-#define GST_OSS4_SOURCE_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OSS4_SOURCE,GstOss4SourceClass))
-#define GST_IS_OSS4_SOURCE(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OSS4_SOURCE))
-#define GST_IS_OSS4_SOURCE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OSS4_SOURCE))
-
-typedef struct _GstOss4Source GstOss4Source;
-typedef struct _GstOss4SourceClass GstOss4SourceClass;
-
-struct _GstOss4Source {
-  GstAudioSrc     audiosrc;
-
-  gchar         * device;             /* NULL if none was set      */
-  gchar         * open_device;        /* the device we opened      */
-  gchar         * device_name;        /* set if the device is open */
-  gint            fd;                 /* -1 if not open            */
-  gint            bytes_per_sample;
-
-  GstCaps       * probed_caps;
-
-  /* property probe interface */
-  GList         * property_probe_list;
-
-  /* mixer interface */
-  GList         * tracks;
-  gboolean        tracks_static;  /* FALSE if the list of inputs may change */
-};
-
-struct _GstOss4SourceClass {
-  GstAudioSrcClass audiosrc_class;
-};
-
-GType  gst_oss4_source_get_type (void);
-
-/* our mixer track for input selection */
-#define GST_TYPE_OSS4_SOURCE_INPUT            (gst_oss4_source_input_get_type())
-#define GST_OSS4_SOURCE_INPUT(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OSS4_SOURCE_INPUT,GstOss4SourceInput))
-#define GST_OSS4_SOURCE_INPUT_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OSS4_SOURCE_INPUT,GstOss4SourceInputClass))
-#define GST_IS_OSS4_SOURCE_INPUT(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OSS4_SOURCE_INPUT))
-#define GST_IS_OSS4_SOURCE_INPUT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OSS4_SOURCE_INPUT))
-
-typedef struct _GstOss4SourceInput GstOss4SourceInput;
-typedef struct _GstOss4SourceInputClass GstOss4SourceInputClass;
-
-struct _GstOss4SourceInput {
-  GstMixerTrack mixer_track;
-
-  int           route; /* number for SNDCTL_DSP_SET_RECSRC etc. */
-};
-
-struct _GstOss4SourceInputClass {
-  GstMixerTrackClass mixer_track_class;
-};
-
-GType  gst_oss4_source_input_get_type (void);
-
-G_END_DECLS
-
-#endif /* GST_OSS4_SOURCE_H */
-
diff --git a/tests/icles/.gitignore b/tests/icles/.gitignore
index ffe5060cb..94f42ab6f 100644
--- a/tests/icles/.gitignore
+++ b/tests/icles/.gitignore
@@ -1,7 +1,6 @@
 equalizer-test
 metadata_editor
 output-selector-test
-test-oss4
 pitch-test
 cog-test
 cog-test.c
diff --git a/tests/icles/Makefile.am b/tests/icles/Makefile.am
index 7611e5208..512b8facc 100644
--- a/tests/icles/Makefile.am
+++ b/tests/icles/Makefile.am
@@ -1,9 +1,3 @@
-if USE_OSS4
-OSS4_TESTS=test-oss4
-else
-OSS4_TESTS=
-endif
-
 if USE_SOUNDTOUCH
 
 GST_SOUNDTOUCH_TESTS = pitch-test
@@ -57,18 +51,12 @@ equalizer_test_CFLAGS  = $(GST_CFLAGS)
 equalizer_test_LDADD   = $(GST_LIBS)
 equalizer_test_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
 
-test_oss4_SOURCES = test-oss4.c
-test_oss4_CFLAGS  = $(GST_PLUGINS_BASE_CFLAGS) $(GST_CFLAGS)
-test_oss4_LDADD   = $(GST_PLUGINS_BASE_LIBS) -lgstinterfaces-0.10 $(GST_LIBS)
-test_oss4_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
-
 output_selector_test_SOURCES = output-selector-test.c
 output_selector_test_CFLAGS  = $(GST_CFLAGS)
 output_selector_test_LDADD   = $(GST_LIBS)
 output_selector_test_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
 
 
-noinst_PROGRAMS = $(GST_SOUNDTOUCH_TESTS) $(GST_METADATA_TESTS) $(OSS4_TESTS) \
-	$(COG_TESTS) \
+noinst_PROGRAMS = $(GST_SOUNDTOUCH_TESTS) $(GST_METADATA_TESTS) $(COG_TESTS) \
 	equalizer-test output-selector-test
 
diff --git a/tests/icles/test-oss4.c b/tests/icles/test-oss4.c
deleted file mode 100644
index f15875d7b..000000000
--- a/tests/icles/test-oss4.c
+++ /dev/null
@@ -1,253 +0,0 @@
-/* GStreamer OSS4 audio tests
- * Copyright (C) 2007-2008 Tim-Philipp Müller <tim centricular net>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <string.h>
-#include <stdlib.h>
-
-#include <gst/gst.h>
-#include <gst/interfaces/propertyprobe.h>
-#include <gst/interfaces/mixer.h>
-
-static gboolean opt_show_mixer_messages = FALSE;
-
-#define WAIT_TIME  60.0         /* in seconds */
-
-static void
-show_mixer_messages (GstElement * element)
-{
-  GstMessage *msg;
-  GstBus *bus;
-  GTimer *t;
-
-  t = g_timer_new ();
-
-  bus = gst_bus_new ();
-  gst_element_set_bus (element, bus);
-
-  g_print ("\nShowing mixer messages for %u seconds ...\n", (guint) WAIT_TIME);
-
-  while (g_timer_elapsed (t, NULL) < WAIT_TIME) {
-    gdouble remaining = WAIT_TIME - g_timer_elapsed (t, NULL);
-    gint64 maxwait =
-        GST_SECOND * gst_util_gdouble_to_guint64 (MAX (0.0, remaining));
-    gchar *s = NULL;
-
-    msg = gst_bus_timed_pop (bus, maxwait);
-    if (!msg)
-      break;
-
-    if (msg->structure)
-      s = gst_structure_to_string (msg->structure);
-    g_print ("%s message: %s\n", GST_MESSAGE_TYPE_NAME (msg), s);
-    gst_message_unref (msg);
-    g_free (s);
-  }
-
-  gst_element_set_bus (element, NULL);
-  gst_object_unref (bus);
-  g_timer_destroy (t);
-}
-
-static void
-probe_mixer_tracks (GstElement * element)
-{
-  const GList *tracks, *t;
-  GstMixer *mixer;
-  guint count;
-
-  if (!GST_IS_MIXER (element))
-    return;
-
-  mixer = GST_MIXER (element);
-  tracks = gst_mixer_list_tracks (mixer);
-  count = g_list_length ((GList *) tracks);
-  g_print ("  %d mixer tracks%c\n", count, (count == 0) ? '.' : ':');
-
-  for (t = tracks; t != NULL; t = t->next) {
-    GstMixerTrack *track;
-    gchar *label = NULL;
-    guint flags = 0;
-
-    track = GST_MIXER_TRACK (t->data);
-    g_object_get (track, "label", &label, "flags", &flags, NULL);
-
-    if (GST_IS_MIXER_OPTIONS (track)) {
-      GString *s;
-      GList *vals, *v;
-
-      vals = gst_mixer_options_get_values (GST_MIXER_OPTIONS (track));
-      s = g_string_new ("options: ");
-      for (v = vals; v != NULL; v = v->next) {
-        if (v->prev != NULL)
-          g_string_append (s, ", ");
-        g_string_append (s, (const gchar *) v->data);
-      }
-
-      g_print ("    [%s] flags=0x%08x, %s\n", label, flags, s->str);
-      g_string_free (s, TRUE);
-    } else if (track->num_channels == 0) {
-      g_print ("    [%s] flags=0x%08x, switch\n", label, flags);
-    } else if (track->num_channels > 0) {
-      g_print ("    [%s] flags=0x%08x, slider (%d channels)\n", label, flags,
-          track->num_channels);
-    } else {
-      g_print ("    [%s] flags=0x%08x, UNKNOWN TYPE\n", label, flags);
-    }
-
-    g_free (label);
-  }
-
-  /* for testing the mixer watch thread / auto-notifications */
-  if (strstr (GST_ELEMENT_NAME (element), "mixer") != NULL &&
-      opt_show_mixer_messages) {
-    show_mixer_messages (element);
-  }
-}
-
-static void
-probe_pad (GstElement * element, const gchar * pad_name)
-{
-  GstCaps *caps = NULL;
-  GstPad *pad;
-  guint i;
-
-  pad = gst_element_get_static_pad (element, pad_name);
-  if (pad == NULL)
-    return;
-
-  caps = gst_pad_get_caps (pad);
-  g_return_if_fail (caps != NULL);
-
-  for (i = 0; i < gst_caps_get_size (caps); ++i) {
-    gchar *s;
-
-    s = gst_structure_to_string (gst_caps_get_structure (caps, i));
-    g_print ("  %4s[%d]: %s\n", GST_PAD_NAME (pad), i, s);
-    g_free (s);
-  }
-  gst_caps_unref (caps);
-  gst_object_unref (pad);
-}
-
-static void
-probe_details (GstElement * element)
-{
-  GstStateChangeReturn ret;
-
-  ret = gst_element_set_state (element, GST_STATE_READY);
-  if (ret == GST_STATE_CHANGE_FAILURE) {
-    g_print ("Could not set element %s to READY.", GST_ELEMENT_NAME (element));
-    return;
-  }
-
-  probe_pad (element, "sink");
-  probe_pad (element, "src");
-
-  probe_mixer_tracks (element);
-
-  gst_element_set_state (element, GST_STATE_NULL);
-}
-
-static void
-probe_element (const gchar * name)
-{
-  GstPropertyProbe *probe;
-  GValueArray *arr;
-  GstElement *element;
-  gchar *devname = NULL;
-  gint i;
-
-  element = gst_element_factory_make (name, name);
-
-  /* make sure we don't deadlock on GST_ELEMENT_ERROR or do other silly things
-   * if we try to query the "device-name" property when the device isn't open */
-  g_object_set (element, "device", "/dev/does/not/exist", NULL);
-  g_object_get (element, "device-name", &devname, NULL);
-  GST_LOG ("devname: '%s'", GST_STR_NULL (devname));
-  g_assert (devname == NULL || *devname == '\0');
-
-  /* and now for real */
-
-  probe = GST_PROPERTY_PROBE (element);
-  arr = gst_property_probe_probe_and_get_values_name (probe, "device");
-
-  for (i = 0; arr != NULL && i < arr->n_values; ++i) {
-    GValue *val;
-    gchar *dev_name = NULL;
-
-    g_print ("\n");
-    /* we assume the element supports getting the device-name in NULL state */
-    val = g_value_array_get_nth (arr, i);
-    g_object_set (element, "device", g_value_get_string (val), NULL);
-    g_object_get (element, "device-name", &dev_name, NULL);
-    g_print ("%-10s device[%d] = %s (%s)\n", GST_OBJECT_NAME (element),
-        i, g_value_get_string (val), dev_name);
-    if (strstr (dev_name, "/usb")) {
-      g_print ("\n\nWARNING: going to probe USB audio device. OSS4 USB support"
-          " is still\npretty shaky, so bad things may happen (e.g. kernel "
-          "lockup).\nPress Control-C NOW if you don't want to continue. "
-          "(waiting 5secs)\n\n");
-      g_usleep (5 * G_USEC_PER_SEC);
-    }
-    g_free (dev_name);
-
-    probe_details (element);
-  }
-
-  if (arr) {
-    g_value_array_free (arr);
-  }
-
-  gst_object_unref (element);
-}
-
-int
-main (int argc, char **argv)
-{
-  GOptionEntry options[] = {
-    {"show-mixer-messages", 'm', 0, G_OPTION_ARG_NONE, &opt_show_mixer_messages,
-        "For mixer elements, wait 60 seconds and show any mixer messages "
-          "(for debugging auto-notifications)", NULL},
-    {NULL,}
-  };
-  GOptionContext *ctx;
-  GError *err = NULL;
-
-  if (!g_thread_supported ())
-    g_thread_init (NULL);
-
-  ctx = g_option_context_new ("");
-  g_option_context_add_main_entries (ctx, options, NULL);
-  g_option_context_add_group (ctx, gst_init_get_option_group ());
-  if (!g_option_context_parse (ctx, &argc, &argv, &err)) {
-    g_print ("Error initializing: %s\n", err->message);
-    exit (1);
-  }
-  g_option_context_free (ctx);
-
-  probe_element ("oss4sink");
-  probe_element ("oss4src");
-  probe_element ("oss4mixer");
-
-  return 0;
-}