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authorRonald S. Bultje <rbultje@ronald.bitfreak.net>2004-11-07 18:30:06 +0000
committerRonald S. Bultje <rbultje@ronald.bitfreak.net>2004-11-07 18:30:06 +0000
commit868291efc42d7b66bfdafe0eded0b38ccad0b3b1 (patch)
treee92a7f534e4ae857d36efd030646bee667f613ba /ext/musepack
parentc69f0127dfa452cedddc8e87e28b59e41eea4d9a (diff)
downloadgstreamer-plugins-bad-868291efc42d7b66bfdafe0eded0b38ccad0b3b1.tar.gz
Add musepack decoder.
Original commit message from CVS: * configure.ac: * ext/Makefile.am: * ext/musepack/Makefile.am: * ext/musepack/gstmusepackdec.cpp: * ext/musepack/gstmusepackdec.h: * ext/musepack/gstmusepackreader.cpp: * ext/musepack/gstmusepackreader.h: Add musepack decoder. * ext/faad/gstfaad.c: (gst_faad_base_init): Make pad templates static. * gst/typefind/gsttypefindfunctions.c: (mp3_type_find), (plugin_init): Add musepack typefinder, make mp3 typefinding work halfway stream, which doesn't actually work yet because id3demux doesn't implement _get_length().
Diffstat (limited to 'ext/musepack')
-rw-r--r--ext/musepack/Makefile.am12
-rw-r--r--ext/musepack/gstmusepackdec.c505
-rw-r--r--ext/musepack/gstmusepackdec.cpp505
-rw-r--r--ext/musepack/gstmusepackdec.h73
-rw-r--r--ext/musepack/gstmusepackreader.c145
-rw-r--r--ext/musepack/gstmusepackreader.cpp145
-rw-r--r--ext/musepack/gstmusepackreader.h43
7 files changed, 1428 insertions, 0 deletions
diff --git a/ext/musepack/Makefile.am b/ext/musepack/Makefile.am
new file mode 100644
index 000000000..3c3b1bfa4
--- /dev/null
+++ b/ext/musepack/Makefile.am
@@ -0,0 +1,12 @@
+plugin_LTLIBRARIES = libgstmusepack.la
+
+libgstmusepack_la_SOURCES = \
+ gstmusepackdec.cpp \
+ gstmusepackreader.cpp
+libgstmusepack_la_CXXFLAGS = $(MUSEPACK_CFLAGS) $(GST_CFLAGS)
+libgstmusepack_la_LIBADD = $(MUSEPACK_LIBS)
+libgstmusepack_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
+
+noinst_HEADERS = \
+ gstmusepackdec.h \
+ gstmusepackreader.h
diff --git a/ext/musepack/gstmusepackdec.c b/ext/musepack/gstmusepackdec.c
new file mode 100644
index 000000000..08f8d5695
--- /dev/null
+++ b/ext/musepack/gstmusepackdec.c
@@ -0,0 +1,505 @@
+/* GStreamer Musepack decoder plugin
+ * Copyright (C) 2004 Ronald Bultje <rbultje@ronald.bitfreak.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 "gstmusepackdec.h"
+#include "gstmusepackreader.h"
+
+static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
+ GST_PAD_SINK,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS ("audio/x-musepack")
+ );
+
+static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
+ GST_PAD_SRC,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS ("audio/x-raw-int, "
+ "endianness = (int) BYTE_ORDER, "
+ "signed = (bool) TRUE, "
+ "width = (int) 32, "
+ "depth = (int) 32, "
+ "rate = (int) [ 8000, 96000 ], "
+ "channels = (int) [ 1, 2 ]")
+ );
+
+static void gst_musepackdec_base_init (GstMusepackDecClass * klass);
+static void gst_musepackdec_class_init (GstMusepackDecClass * klass);
+static void gst_musepackdec_init (GstMusepackDec * musepackdec);
+
+static gboolean gst_musepackdec_src_event (GstPad * pad, GstEvent * event);
+static const GstFormat *gst_musepackdec_get_formats (GstPad * pad);
+static const GstEventMask *gst_musepackdec_get_event_masks (GstPad * pad);
+static const GstQueryType *gst_musepackdec_get_query_types (GstPad * pad);
+static gboolean gst_musepackdec_src_query (GstPad * pad, GstQueryType type,
+ GstFormat * format, gint64 * value);
+static gboolean gst_musepackdec_src_convert (GstPad * pad,
+ GstFormat src_format,
+ gint64 src_value, GstFormat * dest_format, gint64 * dest_value);
+
+static void gst_musepackdec_loop (GstElement * element);
+static GstElementStateReturn
+ gst_musepackdec_change_state (GstElement * element);
+
+static GstElementClass *parent_class = NULL;
+
+/* static guint gst_musepackdec_signals[LAST_SIGNAL] = { 0 }; */
+
+GType
+gst_musepackdec_get_type (void)
+{
+ static GType gst_musepackdec_type = 0;
+
+ if (!gst_musepackdec_type) {
+ static const GTypeInfo gst_musepackdec_info = {
+ sizeof (GstMusepackDecClass),
+ (GBaseInitFunc) gst_musepackdec_base_init,
+ NULL,
+ (GClassInitFunc) gst_musepackdec_class_init,
+ NULL,
+ NULL,
+ sizeof (GstMusepackDec),
+ 0,
+ (GInstanceInitFunc) gst_musepackdec_init,
+ };
+
+ gst_musepackdec_type = g_type_register_static (GST_TYPE_ELEMENT,
+ "GstMusepackDec", &gst_musepackdec_info, (GTypeFlags) 0);
+ }
+
+ return gst_musepackdec_type;
+}
+
+static void
+gst_musepackdec_base_init (GstMusepackDecClass * klass)
+{
+ static GstElementDetails gst_musepackdec_details = GST_ELEMENT_DETAILS (
+ "Musepack decoder",
+ "Codec/Decoder/Audio",
+ "Musepack decoder",
+ "Ronald Bultje <rbultje@ronald.bitfreak.net>"
+ );
+ GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
+
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&src_template));
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&sink_template));
+
+ gst_element_class_set_details (element_class, &gst_musepackdec_details);
+}
+
+static void
+gst_musepackdec_class_init (GstMusepackDecClass * klass)
+{
+ GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
+
+ parent_class = GST_ELEMENT_CLASS (g_type_class_ref (GST_TYPE_ELEMENT));
+
+ gstelement_class->change_state = gst_musepackdec_change_state;
+}
+
+static void
+gst_musepackdec_init (GstMusepackDec * musepackdec)
+{
+ GST_FLAG_SET (musepackdec, GST_ELEMENT_EVENT_AWARE);
+
+ musepackdec->dec = NULL;
+ musepackdec->seek_pending = FALSE;
+
+ musepackdec->sinkpad =
+ gst_pad_new_from_template (gst_static_pad_template_get (&sink_template),
+ "sink");
+ gst_element_add_pad (GST_ELEMENT (musepackdec), musepackdec->sinkpad);
+
+ musepackdec->srcpad =
+ gst_pad_new_from_template (gst_static_pad_template_get (&src_template),
+ "src");
+ gst_pad_set_event_function (musepackdec->srcpad,
+ GST_DEBUG_FUNCPTR (gst_musepackdec_src_event));
+ gst_pad_set_event_mask_function (musepackdec->srcpad,
+ GST_DEBUG_FUNCPTR (gst_musepackdec_get_event_masks));
+ gst_pad_set_query_function (musepackdec->srcpad,
+ GST_DEBUG_FUNCPTR (gst_musepackdec_src_query));
+ gst_pad_set_query_type_function (musepackdec->srcpad,
+ GST_DEBUG_FUNCPTR (gst_musepackdec_get_query_types));
+ gst_pad_set_convert_function (musepackdec->srcpad,
+ GST_DEBUG_FUNCPTR (gst_musepackdec_src_convert));
+ gst_pad_set_formats_function (musepackdec->srcpad,
+ GST_DEBUG_FUNCPTR (gst_musepackdec_get_formats));
+ gst_pad_use_explicit_caps (musepackdec->srcpad);
+ gst_element_add_pad (GST_ELEMENT (musepackdec), musepackdec->srcpad);
+
+ gst_element_set_loop_function (GST_ELEMENT (musepackdec),
+ gst_musepackdec_loop);
+}
+
+static gboolean
+gst_musepackdec_src_event (GstPad * pad, GstEvent * event)
+{
+ GstMusepackDec *musepackdec = GST_MUSEPACK_DEC (gst_pad_get_parent (pad));
+ gboolean res;
+
+ switch (GST_EVENT_TYPE (event)) {
+ case GST_EVENT_SEEK: {
+ gint64 offset, len, pos;
+ GstFormat fmt = GST_FORMAT_TIME;
+
+ /* in time */
+ if (!gst_pad_convert (pad,
+ (GstFormat) GST_EVENT_SEEK_FORMAT (event),
+ GST_EVENT_SEEK_OFFSET (event),
+ &fmt, &offset) ||
+ !gst_pad_convert (pad,
+ GST_FORMAT_DEFAULT, musepackdec->len,
+ &fmt, &len) ||
+ !gst_pad_convert (pad,
+ GST_FORMAT_DEFAULT, musepackdec->pos,
+ &fmt, &pos)) {
+ res = FALSE;
+ break;
+ }
+
+ /* offset from start */
+ switch (GST_EVENT_SEEK_METHOD (event)) {
+ case GST_SEEK_METHOD_SET:
+ break;
+ case GST_SEEK_METHOD_CUR:
+ offset += pos;
+ break;
+ case GST_SEEK_METHOD_END:
+ offset = len - offset;
+ break;
+ default:
+ res = FALSE;
+ goto done;
+ }
+
+ /* only valid seeks */
+ if (offset >= len || offset < 0) {
+ res = FALSE;
+ break;
+ }
+
+ /* store */
+ musepackdec->seek_pending = TRUE;
+ musepackdec->flush_pending =
+ GST_EVENT_SEEK_FLAGS (event) & GST_SEEK_FLAG_FLUSH;
+ musepackdec->seek_time = offset;
+ res = TRUE;
+ break;
+ }
+ default:
+ res = FALSE;
+ break;
+ }
+
+done:
+ gst_event_unref (event);
+
+ return res;
+}
+
+static const GstFormat *
+gst_musepackdec_get_formats (GstPad * pad)
+{
+ static const GstFormat formats[] = {
+ GST_FORMAT_BYTES,
+ GST_FORMAT_DEFAULT,
+ GST_FORMAT_TIME,
+ (GstFormat) 0
+ };
+
+ return formats;
+}
+
+static const GstEventMask *
+gst_musepackdec_get_event_masks (GstPad * pad)
+{
+ static const GstEventMask event_masks[] = {
+ { GST_EVENT_SEEK,
+ (GstEventFlag) (GST_SEEK_METHOD_SET | GST_SEEK_FLAG_FLUSH) },
+ { (GstEventType) 0, (GstEventFlag) 0 }
+ };
+
+ return event_masks;
+}
+
+static const GstQueryType *
+gst_musepackdec_get_query_types (GstPad * pad)
+{
+ static const GstQueryType query_types[] = {
+ GST_QUERY_TOTAL,
+ GST_QUERY_POSITION,
+ (GstQueryType) 0
+ };
+
+ return query_types;
+}
+
+static gboolean
+gst_musepackdec_src_query (GstPad * pad, GstQueryType type,
+ GstFormat * format, gint64 * value)
+{
+ GstMusepackDec *musepackdec = GST_MUSEPACK_DEC (gst_pad_get_parent (pad));
+ gboolean res;
+
+ if (!musepackdec->dec)
+ return FALSE;
+
+ switch (type) {
+ case GST_QUERY_TOTAL:
+ res = gst_pad_convert (pad,
+ GST_FORMAT_DEFAULT, musepackdec->len,
+ format, value);
+ break;
+ case GST_QUERY_POSITION:
+ res = gst_pad_convert (pad,
+ GST_FORMAT_DEFAULT, musepackdec->pos,
+ format, value);
+ break;
+ default:
+ res = FALSE;
+ break;
+ }
+
+ return res;
+}
+
+static gboolean
+gst_musepackdec_src_convert (GstPad * pad, GstFormat src_format,
+ gint64 src_value, GstFormat * dest_format, gint64 * dest_value)
+{
+ GstMusepackDec *musepackdec = GST_MUSEPACK_DEC (gst_pad_get_parent (pad));
+ gboolean res = TRUE;
+
+ if (!musepackdec->dec)
+ return FALSE;
+
+ switch (src_format) {
+ case GST_FORMAT_DEFAULT:
+ switch (*dest_format) {
+ case GST_FORMAT_TIME:
+ *dest_value = src_value * GST_SECOND / musepackdec->rate;
+ break;
+ case GST_FORMAT_BYTES:
+ *dest_value = src_value * musepackdec->bps;
+ break;
+ default:
+ res = FALSE;
+ break;
+ }
+ break;
+
+ case GST_FORMAT_TIME:
+ switch (*dest_format) {
+ case GST_FORMAT_DEFAULT:
+ *dest_value = src_value * musepackdec->rate / GST_SECOND;
+ break;
+ case GST_FORMAT_BYTES:
+ *dest_value = src_value * musepackdec->rate *
+ musepackdec->bps / GST_SECOND;
+ break;
+ default:
+ res = FALSE;
+ break;
+ }
+ break;
+
+ case GST_FORMAT_BYTES:
+ switch (*dest_format) {
+ case GST_FORMAT_DEFAULT:
+ *dest_value = src_value / musepackdec->bps;
+ break;
+ case GST_FORMAT_TIME:
+ *dest_value = src_value * GST_SECOND /
+ (musepackdec->bps * musepackdec->rate);
+ break;
+ default:
+ res = FALSE;
+ break;
+ }
+ break;
+
+ default:
+ res = FALSE;
+ break;
+ }
+
+ return TRUE;
+}
+
+static gboolean
+gst_musepack_stream_init (GstMusepackDec * musepackdec)
+{
+ StreamInfo si = StreamInfo ();
+
+ if (musepackdec->dec)
+ delete musepackdec->dec;
+
+ musepackdec->reader = new GstMusepackReader (musepackdec->bs);
+ if (si.ReadStreamInfo (musepackdec->reader) != ERROR_CODE_OK) {
+ GST_ELEMENT_ERROR (musepackdec, STREAM, WRONG_TYPE, (NULL), (NULL));
+ delete musepackdec->reader;
+ return FALSE;
+ }
+
+ musepackdec->dec = new MPC_decoder (musepackdec->reader);
+ if (!musepackdec->dec) {
+ GST_ELEMENT_ERROR (musepackdec, LIBRARY, INIT, (NULL),
+ ("Creating decoder object failed"));
+ delete musepackdec->reader;
+ return FALSE;
+ }
+
+ if (!musepackdec->dec->Initialize (&si)) {
+ GST_ELEMENT_ERROR (musepackdec, LIBRARY, INIT, (NULL),
+ ("Initializating stream failed"));
+ delete musepackdec->dec;
+ musepackdec->dec = NULL;
+ return FALSE;
+ }
+
+ if (!gst_pad_set_explicit_caps (musepackdec->srcpad,
+ gst_caps_new_simple ("audio/x-raw-int",
+ "width", G_TYPE_INT, 32,
+ "depth", G_TYPE_INT, 32,
+ "endianness", G_TYPE_INT, G_BYTE_ORDER,
+ "channels", G_TYPE_INT, si.simple.Channels,
+ "rate", G_TYPE_INT, si.simple.SampleFreq,
+ "signed", G_TYPE_BOOLEAN, TRUE,
+ NULL))) {
+ GST_ELEMENT_ERROR (musepackdec, CORE, NEGOTIATION, (NULL), (NULL));
+ delete musepackdec->dec;
+ musepackdec->dec = NULL;
+ return FALSE;
+ }
+
+ musepackdec->bps = 4 * si.simple.Channels;
+ musepackdec->rate = si.simple.SampleFreq;
+ musepackdec->pos = 0;
+ musepackdec->len = si.simple.PCMSamples;
+
+ return TRUE;
+}
+
+static void
+gst_musepackdec_loop (GstElement * element)
+{
+ GstMusepackDec *musepackdec = GST_MUSEPACK_DEC (element);
+ GstBuffer *out;
+ GstFormat fmt;
+
+ if (!musepackdec->dec) {
+ if (!gst_musepack_stream_init (musepackdec))
+ return;
+ }
+
+ if (musepackdec->seek_pending) {
+ gdouble seek_time = (gdouble) musepackdec->seek_time / GST_SECOND;
+
+ musepackdec->seek_pending = FALSE;
+ if (musepackdec->dec->SeekSeconds (seek_time)) {
+ if (musepackdec->flush_pending) {
+ musepackdec->flush_pending = FALSE;
+ gst_pad_push (musepackdec->srcpad,
+ GST_DATA (gst_event_new (GST_EVENT_FLUSH)));
+ }
+ gst_pad_push (musepackdec->srcpad,
+ GST_DATA (gst_event_new_discontinuous (FALSE,
+ GST_FORMAT_TIME, musepackdec->seek_time,
+ GST_FORMAT_UNDEFINED)));
+ fmt = GST_FORMAT_DEFAULT;
+ gst_pad_convert (musepackdec->srcpad,
+ GST_FORMAT_TIME, musepackdec->seek_time,
+ &fmt, (gint64 *) &musepackdec->pos);
+ }
+ }
+
+ out = gst_buffer_new_and_alloc (MPC_decoder::DecodeBufferLength * 4);
+ GST_BUFFER_SIZE (out) =
+ musepackdec->dec->Decode ((MPC_SAMPLE_FORMAT *) GST_BUFFER_DATA (out));
+ if (GST_BUFFER_SIZE (out) == 0) {
+ if (musepackdec->reader->eos == true) {
+ gst_element_set_eos (element);
+ gst_pad_push (musepackdec->srcpad,
+ GST_DATA (gst_event_new (GST_EVENT_EOS)));
+ }
+ gst_buffer_unref (out);
+ return;
+ }
+ /* note that the size is still in samples */
+ fmt = GST_FORMAT_TIME;
+ gst_pad_query (musepackdec->srcpad,
+ GST_QUERY_POSITION, &fmt, (gint64 *) &GST_BUFFER_TIMESTAMP (out));
+ gst_pad_convert (musepackdec->srcpad,
+ GST_FORMAT_DEFAULT, GST_BUFFER_SIZE (out),
+ &fmt, (gint64 *) &GST_BUFFER_DURATION (out));
+ musepackdec->pos += GST_BUFFER_SIZE (out);
+ /* convert to bytes */
+ GST_BUFFER_SIZE (out) *= musepackdec->bps;
+ gst_pad_push (musepackdec->srcpad, GST_DATA (out));
+}
+
+static GstElementStateReturn
+gst_musepackdec_change_state (GstElement * element)
+{
+ GstMusepackDec *musepackdec = GST_MUSEPACK_DEC (element);
+
+ switch (GST_STATE_TRANSITION (element)) {
+ case GST_STATE_NULL_TO_READY:
+ musepackdec->bs = gst_bytestream_new (musepackdec->sinkpad);
+ break;
+ case GST_STATE_PAUSED_TO_READY:
+ musepackdec->seek_pending = FALSE;
+ if (musepackdec->dec != NULL) {
+ delete musepackdec->reader;
+ delete musepackdec->dec;
+ musepackdec->dec = NULL;
+ }
+ break;
+ case GST_STATE_READY_TO_NULL:
+ gst_bytestream_destroy (musepackdec->bs);
+ break;
+ default:
+ break;
+ }
+
+ if (GST_ELEMENT_CLASS (parent_class)->change_state)
+ return GST_ELEMENT_CLASS (parent_class)->change_state (element);
+
+ return GST_STATE_SUCCESS;
+}
+
+static gboolean
+plugin_init (GstPlugin * plugin)
+{
+ return gst_library_load ("gstbytestream") &&
+ gst_element_register (plugin, "musepackdec",
+ GST_RANK_PRIMARY, GST_TYPE_MUSEPACK_DEC);
+}
+
+GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
+ GST_VERSION_MINOR,
+ "musepack",
+ "Musepack decoder",
+ plugin_init, VERSION, "LGPL", GST_PACKAGE, GST_ORIGIN)
diff --git a/ext/musepack/gstmusepackdec.cpp b/ext/musepack/gstmusepackdec.cpp
new file mode 100644
index 000000000..08f8d5695
--- /dev/null
+++ b/ext/musepack/gstmusepackdec.cpp
@@ -0,0 +1,505 @@
+/* GStreamer Musepack decoder plugin
+ * Copyright (C) 2004 Ronald Bultje <rbultje@ronald.bitfreak.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 "gstmusepackdec.h"
+#include "gstmusepackreader.h"
+
+static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
+ GST_PAD_SINK,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS ("audio/x-musepack")
+ );
+
+static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
+ GST_PAD_SRC,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS ("audio/x-raw-int, "
+ "endianness = (int) BYTE_ORDER, "
+ "signed = (bool) TRUE, "
+ "width = (int) 32, "
+ "depth = (int) 32, "
+ "rate = (int) [ 8000, 96000 ], "
+ "channels = (int) [ 1, 2 ]")
+ );
+
+static void gst_musepackdec_base_init (GstMusepackDecClass * klass);
+static void gst_musepackdec_class_init (GstMusepackDecClass * klass);
+static void gst_musepackdec_init (GstMusepackDec * musepackdec);
+
+static gboolean gst_musepackdec_src_event (GstPad * pad, GstEvent * event);
+static const GstFormat *gst_musepackdec_get_formats (GstPad * pad);
+static const GstEventMask *gst_musepackdec_get_event_masks (GstPad * pad);
+static const GstQueryType *gst_musepackdec_get_query_types (GstPad * pad);
+static gboolean gst_musepackdec_src_query (GstPad * pad, GstQueryType type,
+ GstFormat * format, gint64 * value);
+static gboolean gst_musepackdec_src_convert (GstPad * pad,
+ GstFormat src_format,
+ gint64 src_value, GstFormat * dest_format, gint64 * dest_value);
+
+static void gst_musepackdec_loop (GstElement * element);
+static GstElementStateReturn
+ gst_musepackdec_change_state (GstElement * element);
+
+static GstElementClass *parent_class = NULL;
+
+/* static guint gst_musepackdec_signals[LAST_SIGNAL] = { 0 }; */
+
+GType
+gst_musepackdec_get_type (void)
+{
+ static GType gst_musepackdec_type = 0;
+
+ if (!gst_musepackdec_type) {
+ static const GTypeInfo gst_musepackdec_info = {
+ sizeof (GstMusepackDecClass),
+ (GBaseInitFunc) gst_musepackdec_base_init,
+ NULL,
+ (GClassInitFunc) gst_musepackdec_class_init,
+ NULL,
+ NULL,
+ sizeof (GstMusepackDec),
+ 0,
+ (GInstanceInitFunc) gst_musepackdec_init,
+ };
+
+ gst_musepackdec_type = g_type_register_static (GST_TYPE_ELEMENT,
+ "GstMusepackDec", &gst_musepackdec_info, (GTypeFlags) 0);
+ }
+
+ return gst_musepackdec_type;
+}
+
+static void
+gst_musepackdec_base_init (GstMusepackDecClass * klass)
+{
+ static GstElementDetails gst_musepackdec_details = GST_ELEMENT_DETAILS (
+ "Musepack decoder",
+ "Codec/Decoder/Audio",
+ "Musepack decoder",
+ "Ronald Bultje <rbultje@ronald.bitfreak.net>"
+ );
+ GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
+
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&src_template));
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&sink_template));
+
+ gst_element_class_set_details (element_class, &gst_musepackdec_details);
+}
+
+static void
+gst_musepackdec_class_init (GstMusepackDecClass * klass)
+{
+ GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
+
+ parent_class = GST_ELEMENT_CLASS (g_type_class_ref (GST_TYPE_ELEMENT));
+
+ gstelement_class->change_state = gst_musepackdec_change_state;
+}
+
+static void
+gst_musepackdec_init (GstMusepackDec * musepackdec)
+{
+ GST_FLAG_SET (musepackdec, GST_ELEMENT_EVENT_AWARE);
+
+ musepackdec->dec = NULL;
+ musepackdec->seek_pending = FALSE;
+
+ musepackdec->sinkpad =
+ gst_pad_new_from_template (gst_static_pad_template_get (&sink_template),
+ "sink");
+ gst_element_add_pad (GST_ELEMENT (musepackdec), musepackdec->sinkpad);
+
+ musepackdec->srcpad =
+ gst_pad_new_from_template (gst_static_pad_template_get (&src_template),
+ "src");
+ gst_pad_set_event_function (musepackdec->srcpad,
+ GST_DEBUG_FUNCPTR (gst_musepackdec_src_event));
+ gst_pad_set_event_mask_function (musepackdec->srcpad,
+ GST_DEBUG_FUNCPTR (gst_musepackdec_get_event_masks));
+ gst_pad_set_query_function (musepackdec->srcpad,
+ GST_DEBUG_FUNCPTR (gst_musepackdec_src_query));
+ gst_pad_set_query_type_function (musepackdec->srcpad,
+ GST_DEBUG_FUNCPTR (gst_musepackdec_get_query_types));
+ gst_pad_set_convert_function (musepackdec->srcpad,
+ GST_DEBUG_FUNCPTR (gst_musepackdec_src_convert));
+ gst_pad_set_formats_function (musepackdec->srcpad,
+ GST_DEBUG_FUNCPTR (gst_musepackdec_get_formats));
+ gst_pad_use_explicit_caps (musepackdec->srcpad);
+ gst_element_add_pad (GST_ELEMENT (musepackdec), musepackdec->srcpad);
+
+ gst_element_set_loop_function (GST_ELEMENT (musepackdec),
+ gst_musepackdec_loop);
+}
+
+static gboolean
+gst_musepackdec_src_event (GstPad * pad, GstEvent * event)
+{
+ GstMusepackDec *musepackdec = GST_MUSEPACK_DEC (gst_pad_get_parent (pad));
+ gboolean res;
+
+ switch (GST_EVENT_TYPE (event)) {
+ case GST_EVENT_SEEK: {
+ gint64 offset, len, pos;
+ GstFormat fmt = GST_FORMAT_TIME;
+
+ /* in time */
+ if (!gst_pad_convert (pad,
+ (GstFormat) GST_EVENT_SEEK_FORMAT (event),
+ GST_EVENT_SEEK_OFFSET (event),
+ &fmt, &offset) ||
+ !gst_pad_convert (pad,
+ GST_FORMAT_DEFAULT, musepackdec->len,
+ &fmt, &len) ||
+ !gst_pad_convert (pad,
+ GST_FORMAT_DEFAULT, musepackdec->pos,
+ &fmt, &pos)) {
+ res = FALSE;
+ break;
+ }
+
+ /* offset from start */
+ switch (GST_EVENT_SEEK_METHOD (event)) {
+ case GST_SEEK_METHOD_SET:
+ break;
+ case GST_SEEK_METHOD_CUR:
+ offset += pos;
+ break;
+ case GST_SEEK_METHOD_END:
+ offset = len - offset;
+ break;
+ default:
+ res = FALSE;
+ goto done;
+ }
+
+ /* only valid seeks */
+ if (offset >= len || offset < 0) {
+ res = FALSE;
+ break;
+ }
+
+ /* store */
+ musepackdec->seek_pending = TRUE;
+ musepackdec->flush_pending =
+ GST_EVENT_SEEK_FLAGS (event) & GST_SEEK_FLAG_FLUSH;
+ musepackdec->seek_time = offset;
+ res = TRUE;
+ break;
+ }
+ default:
+ res = FALSE;
+ break;
+ }
+
+done:
+ gst_event_unref (event);
+
+ return res;
+}
+
+static const GstFormat *
+gst_musepackdec_get_formats (GstPad * pad)
+{
+ static const GstFormat formats[] = {
+ GST_FORMAT_BYTES,
+ GST_FORMAT_DEFAULT,
+ GST_FORMAT_TIME,
+ (GstFormat) 0
+ };
+
+ return formats;
+}
+
+static const GstEventMask *
+gst_musepackdec_get_event_masks (GstPad * pad)
+{
+ static const GstEventMask event_masks[] = {
+ { GST_EVENT_SEEK,
+ (GstEventFlag) (GST_SEEK_METHOD_SET | GST_SEEK_FLAG_FLUSH) },
+ { (GstEventType) 0, (GstEventFlag) 0 }
+ };
+
+ return event_masks;
+}
+
+static const GstQueryType *
+gst_musepackdec_get_query_types (GstPad * pad)
+{
+ static const GstQueryType query_types[] = {
+ GST_QUERY_TOTAL,
+ GST_QUERY_POSITION,
+ (GstQueryType) 0
+ };
+
+ return query_types;
+}
+
+static gboolean
+gst_musepackdec_src_query (GstPad * pad, GstQueryType type,
+ GstFormat * format, gint64 * value)
+{
+ GstMusepackDec *musepackdec = GST_MUSEPACK_DEC (gst_pad_get_parent (pad));
+ gboolean res;
+
+ if (!musepackdec->dec)
+ return FALSE;
+
+ switch (type) {
+ case GST_QUERY_TOTAL:
+ res = gst_pad_convert (pad,
+ GST_FORMAT_DEFAULT, musepackdec->len,
+ format, value);
+ break;
+ case GST_QUERY_POSITION:
+ res = gst_pad_convert (pad,
+ GST_FORMAT_DEFAULT, musepackdec->pos,
+ format, value);
+ break;
+ default:
+ res = FALSE;
+ break;
+ }
+
+ return res;
+}
+
+static gboolean
+gst_musepackdec_src_convert (GstPad * pad, GstFormat src_format,
+ gint64 src_value, GstFormat * dest_format, gint64 * dest_value)
+{
+ GstMusepackDec *musepackdec = GST_MUSEPACK_DEC (gst_pad_get_parent (pad));
+ gboolean res = TRUE;
+
+ if (!musepackdec->dec)
+ return FALSE;
+
+ switch (src_format) {
+ case GST_FORMAT_DEFAULT:
+ switch (*dest_format) {
+ case GST_FORMAT_TIME:
+ *dest_value = src_value * GST_SECOND / musepackdec->rate;
+ break;
+ case GST_FORMAT_BYTES:
+ *dest_value = src_value * musepackdec->bps;
+ break;
+ default:
+ res = FALSE;
+ break;
+ }
+ break;
+
+ case GST_FORMAT_TIME:
+ switch (*dest_format) {
+ case GST_FORMAT_DEFAULT:
+ *dest_value = src_value * musepackdec->rate / GST_SECOND;
+ break;
+ case GST_FORMAT_BYTES:
+ *dest_value = src_value * musepackdec->rate *
+ musepackdec->bps / GST_SECOND;
+ break;
+ default:
+ res = FALSE;
+ break;
+ }
+ break;
+
+ case GST_FORMAT_BYTES:
+ switch (*dest_format) {
+ case GST_FORMAT_DEFAULT:
+ *dest_value = src_value / musepackdec->bps;
+ break;
+ case GST_FORMAT_TIME:
+ *dest_value = src_value * GST_SECOND /
+ (musepackdec->bps * musepackdec->rate);
+ break;
+ default:
+ res = FALSE;
+ break;
+ }
+ break;
+
+ default:
+ res = FALSE;
+ break;
+ }
+
+ return TRUE;
+}
+
+static gboolean
+gst_musepack_stream_init (GstMusepackDec * musepackdec)
+{
+ StreamInfo si = StreamInfo ();
+
+ if (musepackdec->dec)
+ delete musepackdec->dec;
+
+ musepackdec->reader = new GstMusepackReader (musepackdec->bs);
+ if (si.ReadStreamInfo (musepackdec->reader) != ERROR_CODE_OK) {
+ GST_ELEMENT_ERROR (musepackdec, STREAM, WRONG_TYPE, (NULL), (NULL));
+ delete musepackdec->reader;
+ return FALSE;
+ }
+
+ musepackdec->dec = new MPC_decoder (musepackdec->reader);
+ if (!musepackdec->dec) {
+ GST_ELEMENT_ERROR (musepackdec, LIBRARY, INIT, (NULL),
+ ("Creating decoder object failed"));
+ delete musepackdec->reader;
+ return FALSE;
+ }
+
+ if (!musepackdec->dec->Initialize (&si)) {
+ GST_ELEMENT_ERROR (musepackdec, LIBRARY, INIT, (NULL),
+ ("Initializating stream failed"));
+ delete musepackdec->dec;
+ musepackdec->dec = NULL;
+ return FALSE;
+ }
+
+ if (!gst_pad_set_explicit_caps (musepackdec->srcpad,
+ gst_caps_new_simple ("audio/x-raw-int",
+ "width", G_TYPE_INT, 32,
+ "depth", G_TYPE_INT, 32,
+ "endianness", G_TYPE_INT, G_BYTE_ORDER,
+ "channels", G_TYPE_INT, si.simple.Channels,
+ "rate", G_TYPE_INT, si.simple.SampleFreq,
+ "signed", G_TYPE_BOOLEAN, TRUE,
+ NULL))) {
+ GST_ELEMENT_ERROR (musepackdec, CORE, NEGOTIATION, (NULL), (NULL));
+ delete musepackdec->dec;
+ musepackdec->dec = NULL;
+ return FALSE;
+ }
+
+ musepackdec->bps = 4 * si.simple.Channels;
+ musepackdec->rate = si.simple.SampleFreq;
+ musepackdec->pos = 0;
+ musepackdec->len = si.simple.PCMSamples;
+
+ return TRUE;
+}
+
+static void
+gst_musepackdec_loop (GstElement * element)
+{
+ GstMusepackDec *musepackdec = GST_MUSEPACK_DEC (element);
+ GstBuffer *out;
+ GstFormat fmt;
+
+ if (!musepackdec->dec) {
+ if (!gst_musepack_stream_init (musepackdec))
+ return;
+ }
+
+ if (musepackdec->seek_pending) {
+ gdouble seek_time = (gdouble) musepackdec->seek_time / GST_SECOND;
+
+ musepackdec->seek_pending = FALSE;
+ if (musepackdec->dec->SeekSeconds (seek_time)) {
+ if (musepackdec->flush_pending) {
+ musepackdec->flush_pending = FALSE;
+ gst_pad_push (musepackdec->srcpad,
+ GST_DATA (gst_event_new (GST_EVENT_FLUSH)));
+ }
+ gst_pad_push (musepackdec->srcpad,
+ GST_DATA (gst_event_new_discontinuous (FALSE,
+ GST_FORMAT_TIME, musepackdec->seek_time,
+ GST_FORMAT_UNDEFINED)));
+ fmt = GST_FORMAT_DEFAULT;
+ gst_pad_convert (musepackdec->srcpad,
+ GST_FORMAT_TIME, musepackdec->seek_time,
+ &fmt, (gint64 *) &musepackdec->pos);
+ }
+ }
+
+ out = gst_buffer_new_and_alloc (MPC_decoder::DecodeBufferLength * 4);
+ GST_BUFFER_SIZE (out) =
+ musepackdec->dec->Decode ((MPC_SAMPLE_FORMAT *) GST_BUFFER_DATA (out));
+ if (GST_BUFFER_SIZE (out) == 0) {
+ if (musepackdec->reader->eos == true) {
+ gst_element_set_eos (element);
+ gst_pad_push (musepackdec->srcpad,
+ GST_DATA (gst_event_new (GST_EVENT_EOS)));
+ }
+ gst_buffer_unref (out);
+ return;
+ }
+ /* note that the size is still in samples */
+ fmt = GST_FORMAT_TIME;
+ gst_pad_query (musepackdec->srcpad,
+ GST_QUERY_POSITION, &fmt, (gint64 *) &GST_BUFFER_TIMESTAMP (out));
+ gst_pad_convert (musepackdec->srcpad,
+ GST_FORMAT_DEFAULT, GST_BUFFER_SIZE (out),
+ &fmt, (gint64 *) &GST_BUFFER_DURATION (out));
+ musepackdec->pos += GST_BUFFER_SIZE (out);
+ /* convert to bytes */
+ GST_BUFFER_SIZE (out) *= musepackdec->bps;
+ gst_pad_push (musepackdec->srcpad, GST_DATA (out));
+}
+
+static GstElementStateReturn
+gst_musepackdec_change_state (GstElement * element)
+{
+ GstMusepackDec *musepackdec = GST_MUSEPACK_DEC (element);
+
+ switch (GST_STATE_TRANSITION (element)) {
+ case GST_STATE_NULL_TO_READY:
+ musepackdec->bs = gst_bytestream_new (musepackdec->sinkpad);
+ break;
+ case GST_STATE_PAUSED_TO_READY:
+ musepackdec->seek_pending = FALSE;
+ if (musepackdec->dec != NULL) {
+ delete musepackdec->reader;
+ delete musepackdec->dec;
+ musepackdec->dec = NULL;
+ }
+ break;
+ case GST_STATE_READY_TO_NULL:
+ gst_bytestream_destroy (musepackdec->bs);
+ break;
+ default:
+ break;
+ }
+
+ if (GST_ELEMENT_CLASS (parent_class)->change_state)
+ return GST_ELEMENT_CLASS (parent_class)->change_state (element);
+
+ return GST_STATE_SUCCESS;
+}
+
+static gboolean
+plugin_init (GstPlugin * plugin)
+{
+ return gst_library_load ("gstbytestream") &&
+ gst_element_register (plugin, "musepackdec",
+ GST_RANK_PRIMARY, GST_TYPE_MUSEPACK_DEC);
+}
+
+GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
+ GST_VERSION_MINOR,
+ "musepack",
+ "Musepack decoder",
+ plugin_init, VERSION, "LGPL", GST_PACKAGE, GST_ORIGIN)
diff --git a/ext/musepack/gstmusepackdec.h b/ext/musepack/gstmusepackdec.h
new file mode 100644
index 000000000..a56261925
--- /dev/null
+++ b/ext/musepack/gstmusepackdec.h
@@ -0,0 +1,73 @@
+/* GStreamer Musepack decoder plugin
+ * Copyright (C) 2004 Ronald Bultje <rbultje@ronald.bitfreak.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_MUSEPACK_DEC_H__
+#define __GST_MUSEPACK_DEC_H__
+
+#include <gst/gst.h>
+#include <gst/bytestream/bytestream.h>
+#include <mpc_dec.h>
+#include "gstmusepackreader.h"
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_MUSEPACK_DEC \
+ (gst_musepackdec_get_type ())
+#define GST_MUSEPACK_DEC(obj) \
+ (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_MUSEPACK_DEC, \
+ GstMusepackDec))
+#define GST_MUSEPACK_DEC_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_MUSEPACK_DEC, \
+ GstMusepackDecClass))
+#define GST_IS_MUSEPACK_DEC(obj) \
+ (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_MUSEPACK_DEC))
+#define GST_IS_MUSEPACK_DEC_CLASS(obj) \
+ (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_MUSEPACK_DEC))
+
+typedef struct _GstMusepackDec {
+ GstElement element;
+
+ /* pads */
+ GstPad *srcpad, *sinkpad;
+ GstByteStream *bs;
+
+ /* MUSEPACK_DEC object */
+ MPC_decoder *dec;
+ GstMusepackReader *reader;
+
+ /* bytes-per-sample */
+ int bps, rate;
+
+ /* position and length, in samples */
+ guint64 pos, len;
+
+ /* seeks */
+ gdouble flush_pending, seek_pending;
+ guint64 seek_time;
+} GstMusepackDec;
+
+typedef struct _GstMusepackDecClass {
+ GstElementClass parent_class;
+} GstMusepackDecClass;
+
+GType gst_musepackdec_get_type (void);
+
+G_END_DECLS
+
+#endif /* __GST_MUSEPACK_DEC_H__ */
diff --git a/ext/musepack/gstmusepackreader.c b/ext/musepack/gstmusepackreader.c
new file mode 100644
index 000000000..e26baabc4
--- /dev/null
+++ b/ext/musepack/gstmusepackreader.c
@@ -0,0 +1,145 @@
+/* GStreamer Musepack decoder plugin
+ * Copyright (C) 2004 Ronald Bultje <rbultje@ronald.bitfreak.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>
+#include <string.h>
+
+#include "gstmusepackreader.h"
+
+GstMusepackReader::GstMusepackReader (GstByteStream *bs)
+{
+ this->bs = bs;
+ this->eos = false;
+}
+
+GstMusepackReader::~GstMusepackReader (void)
+{
+}
+
+mpc_int32_t
+GstMusepackReader::read (void * ptr, mpc_int32_t size)
+{
+ guint8 *data;
+ gint read;
+
+ do {
+ read = gst_bytestream_peek_bytes (this->bs, &data, size);
+
+ if (read != size) {
+ GstEvent *event;
+ guint32 remaining;
+
+ gst_bytestream_get_status (this->bs, &remaining, &event);
+ if (!event) {
+ GST_ELEMENT_ERROR (gst_pad_get_parent (this->bs->pad),
+ RESOURCE, READ, (NULL), (NULL));
+ goto done;
+ }
+
+ switch (GST_EVENT_TYPE (event)) {
+ case GST_EVENT_INTERRUPT:
+ gst_event_unref (event);
+ goto done;
+ case GST_EVENT_EOS:
+ this->eos = true;
+ gst_event_unref (event);
+ goto done;
+ default:
+ gst_pad_event_default (this->bs->pad, event);
+ break;
+ }
+ }
+ } while (read != size);
+
+done:
+ if (read != 0) {
+ memcpy (ptr, data, read);
+ gst_bytestream_flush_fast (this->bs, read);
+ }
+
+ return read;
+}
+
+bool
+GstMusepackReader::seek (mpc_int32_t offset)
+{
+ guint8 *dummy;
+
+ /* hacky hack - if we're after typefind, we'll fail because
+ * typefind is still typefinding (heh :) ). So read first. */
+ if (this->tell () == 0) {
+ guint8 dummy2[1];
+ this->read (dummy2, 1);
+ }
+
+ if (!gst_bytestream_seek (this->bs, offset, GST_SEEK_METHOD_SET))
+ return FALSE;
+
+ /* get discont */
+ while (gst_bytestream_peek_bytes (this->bs, &dummy, 1) != 1) {
+ GstEvent *event;
+ guint32 remaining;
+
+ gst_bytestream_get_status (this->bs, &remaining, &event);
+ if (!event) {
+ GST_ELEMENT_ERROR (gst_pad_get_parent (this->bs->pad),
+ RESOURCE, SEEK, (NULL), (NULL));
+ return false;
+ }
+ switch (GST_EVENT_TYPE (event)) {
+ case GST_EVENT_EOS:
+ g_warning ("EOS!");
+ gst_event_unref (event);
+ return false;
+ case GST_EVENT_DISCONTINUOUS:
+ gst_event_unref (event);
+ return true;
+ case GST_EVENT_INTERRUPT:
+ g_warning ("interrupt!");
+ return false;
+ default:
+ gst_pad_event_default (this->bs->pad, event);
+ break;
+ }
+ }
+
+ return false;
+}
+
+mpc_int32_t
+GstMusepackReader::tell (void)
+{
+ return gst_bytestream_tell (this->bs);
+}
+
+mpc_int32_t
+GstMusepackReader::get_size (void)
+{
+ return gst_bytestream_length (this->bs);
+}
+
+bool
+GstMusepackReader::canseek (void)
+{
+ return true;
+}
diff --git a/ext/musepack/gstmusepackreader.cpp b/ext/musepack/gstmusepackreader.cpp
new file mode 100644
index 000000000..e26baabc4
--- /dev/null
+++ b/ext/musepack/gstmusepackreader.cpp
@@ -0,0 +1,145 @@
+/* GStreamer Musepack decoder plugin
+ * Copyright (C) 2004 Ronald Bultje <rbultje@ronald.bitfreak.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>
+#include <string.h>
+
+#include "gstmusepackreader.h"
+
+GstMusepackReader::GstMusepackReader (GstByteStream *bs)
+{
+ this->bs = bs;
+ this->eos = false;
+}
+
+GstMusepackReader::~GstMusepackReader (void)
+{
+}
+
+mpc_int32_t
+GstMusepackReader::read (void * ptr, mpc_int32_t size)
+{
+ guint8 *data;
+ gint read;
+
+ do {
+ read = gst_bytestream_peek_bytes (this->bs, &data, size);
+
+ if (read != size) {
+ GstEvent *event;
+ guint32 remaining;
+
+ gst_bytestream_get_status (this->bs, &remaining, &event);
+ if (!event) {
+ GST_ELEMENT_ERROR (gst_pad_get_parent (this->bs->pad),
+ RESOURCE, READ, (NULL), (NULL));
+ goto done;
+ }
+
+ switch (GST_EVENT_TYPE (event)) {
+ case GST_EVENT_INTERRUPT:
+ gst_event_unref (event);
+ goto done;
+ case GST_EVENT_EOS:
+ this->eos = true;
+ gst_event_unref (event);
+ goto done;
+ default:
+ gst_pad_event_default (this->bs->pad, event);
+ break;
+ }
+ }
+ } while (read != size);
+
+done:
+ if (read != 0) {
+ memcpy (ptr, data, read);
+ gst_bytestream_flush_fast (this->bs, read);
+ }
+
+ return read;
+}
+
+bool
+GstMusepackReader::seek (mpc_int32_t offset)
+{
+ guint8 *dummy;
+
+ /* hacky hack - if we're after typefind, we'll fail because
+ * typefind is still typefinding (heh :) ). So read first. */
+ if (this->tell () == 0) {
+ guint8 dummy2[1];
+ this->read (dummy2, 1);
+ }
+
+ if (!gst_bytestream_seek (this->bs, offset, GST_SEEK_METHOD_SET))
+ return FALSE;
+
+ /* get discont */
+ while (gst_bytestream_peek_bytes (this->bs, &dummy, 1) != 1) {
+ GstEvent *event;
+ guint32 remaining;
+
+ gst_bytestream_get_status (this->bs, &remaining, &event);
+ if (!event) {
+ GST_ELEMENT_ERROR (gst_pad_get_parent (this->bs->pad),
+ RESOURCE, SEEK, (NULL), (NULL));
+ return false;
+ }
+ switch (GST_EVENT_TYPE (event)) {
+ case GST_EVENT_EOS:
+ g_warning ("EOS!");
+ gst_event_unref (event);
+ return false;
+ case GST_EVENT_DISCONTINUOUS:
+ gst_event_unref (event);
+ return true;
+ case GST_EVENT_INTERRUPT:
+ g_warning ("interrupt!");
+ return false;
+ default:
+ gst_pad_event_default (this->bs->pad, event);
+ break;
+ }
+ }
+
+ return false;
+}
+
+mpc_int32_t
+GstMusepackReader::tell (void)
+{
+ return gst_bytestream_tell (this->bs);
+}
+
+mpc_int32_t
+GstMusepackReader::get_size (void)
+{
+ return gst_bytestream_length (this->bs);
+}
+
+bool
+GstMusepackReader::canseek (void)
+{
+ return true;
+}
diff --git a/ext/musepack/gstmusepackreader.h b/ext/musepack/gstmusepackreader.h
new file mode 100644
index 000000000..e2e0bf216
--- /dev/null
+++ b/ext/musepack/gstmusepackreader.h
@@ -0,0 +1,43 @@
+/* GStreamer Musepack decoder plugin
+ * Copyright (C) 2004 Ronald Bultje <rbultje@ronald.bitfreak.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_MUSEPACK_READER_H__
+#define __GST_MUSEPACK_READER_H__
+
+#include <mpc_dec.h>
+#include <gst/bytestream/bytestream.h>
+
+class GstMusepackReader : public MPC_reader {
+public:
+ GstMusepackReader (GstByteStream *bs);
+ virtual ~GstMusepackReader (void);
+
+ mpc_int32_t read (void * ptr, mpc_int32_t size);
+ bool seek (mpc_int32_t offset);
+ mpc_int32_t tell (void);
+ mpc_int32_t get_size (void);
+ bool canseek (void);
+
+ bool eos;
+
+private:
+ GstByteStream *bs;
+};
+
+#endif /* __GST_MUSEPACK_READER_H__ */