flac debug cleanup m4 for ffmpeg

Original commit message from CVS:
flac debug cleanup
m4 for ffmpeg

5 files changed, 124 insertions, 8 deletions

diff --git a/common b/common
-Subproject 1ca7d9a20180cab830f4383cde5ba932338e50b
+Subproject f2d9b99515c73da09bfe307d273d320f79a226d
diff --git a/configure.ac b/configure.ac
index a349bfcaf..599e8343e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -504,6 +504,12 @@ GST_CHECK_FEATURE(FLAC, [FLAC lossless audio], flacenc flacdec, [
   AC_SUBST(FLAC_LIBS)
 ])
 
+dnl *** FFMPEG ***
+translit(dnm, m, l) AM_CONDITIONAL(USE_FFMPEG, true)
+GST_CHECK_FEATURE(FFMPEG, [ffmpeg plug-ins], ffmpeg, [
+  AM_PATH_FFMPEG(0.4.6, HAVE_FFMPEG=yes, HAVE_FFMPEG=no)
+])
+
 dnl *** Gnome VFS ***
 translit(dnm, m, l) AM_CONDITIONAL(USE_GNOME_VFS, true)
 GST_CHECK_FEATURE(GNOME_VFS, [Gnome VFS], gnomevfssrc, [
diff --git a/ext/Makefile.am b/ext/Makefile.am
index 763c6776f..c2a973f30 100644
--- a/ext/Makefile.am
+++ b/ext/Makefile.am
@@ -76,6 +76,12 @@ else
 GSM_DIR=
 endif
 
+if USE_FFMPEG
+FFMPEG_DIR=ffmpeg
+else
+FFMPEG_DIR=
+endif
+
 if USE_FLAC
 FLAC_DIR=flac
 else
@@ -142,12 +148,6 @@ else
 LIBFAME_DIR=
 endif
 
-if USE_LIBPNG
-LIBPNG_DIR=libpng
-else
-LIBPNG_DIR=
-endif
-
 if USE_MAD
 MAD_DIR=mad
 else
@@ -242,7 +242,7 @@ SUBDIRS=$(A52DEC_DIR) $(AALIB_DIR) $(ALSA_DIR) \
         $(ARTS_DIR) $(ARTSC_DIR) $(AUDIOFILE_DIR) \
 	$(AVIFILE_DIR) $(CDPARANOIA_DIR) \
 	$(DVDREAD_DIR) $(DVDNAV_DIR) $(ESD_DIR) \
-	$(FLAC_DIR) $(GNOMEVFS_DIR) $(GSM_DIR) \
+	$(FFMPEG_DIR) $(FLAC_DIR) $(GNOMEVFS_DIR) $(GSM_DIR) \
 	$(HERMES_DIR) $(HTTP_DIR) $(JACK_DIR) $(JPEG_DIR) \
 	$(LADSPA_DIR) $(LAME_DIR) $(LCS_DIR) $(LIBDV_DIR) $(LIBFAME_DIR) \
 	$(MAD_DIR) $(MIKMOD_DIR) $(MJPEGTOOLS_DIR) $(MPEG2DEC_DIR) \
diff --git a/gst-libs/gst/media-info/media-info.c b/gst-libs/gst/media-info/media-info.c
index 4aabcce83..08f93eb60 100644
--- a/gst-libs/gst/media-info/media-info.c
+++ b/gst-libs/gst/media-info/media-info.c
@@ -21,7 +21,7 @@
 #include <string.h>
 #include "media-info.h"
 
-static gboolean _gst_media_info_debug = FALSE;
+static gboolean _gst_media_info_debug = TRUE;
 #define GMI_DEBUG(format, args...) \
   { if (_gst_media_info_debug) { g_print ( format , ## args ); }}
 
@@ -262,6 +262,16 @@ gst_media_info_get_property (GObject *object, guint prop_id,
   }
 }
 
+GstMediaInfo *
+gst_media_info_new (const gchar *source_element)
+{
+  GstMediaInfo *info = g_object_new (GST_MEDIA_INFO_TYPE, NULL);
+  if (source_element)
+    g_object_set (G_OBJECT (info), "source", source_element);
+
+  return info;
+}
+
 /**
  * private functions 
  */
@@ -631,6 +641,7 @@ gst_media_info_find_streaminfo (GstMediaInfo *info)
         /* substract to get the length */
 	GMI_DEBUG("DEBUG: start %lld, end %lld\n", value_start, value_end);
 	value_end -= value_start;
+	g_print ("DEBUG: length: %d\n", (int) value_end);
 	length = gst_props_entry_new ("length", GST_PROPS_INT ((int) value_end));
 	gst_props_add_entry (gst_caps_get_props (streaminfo), length);
       }
diff --git a/m4/as-ffmpeg.m4 b/m4/as-ffmpeg.m4
new file mode 100644
index 000000000..612224c87
--- /dev/null
+++ b/m4/as-ffmpeg.m4
@@ -0,0 +1,99 @@
+# CFLAGS and library paths for FFMPEG
+# taken from Autostar Sandbox, http://autostars.sourceforge.net/
+
+dnl Usage:
+dnl AM_PATH_FFMPEG([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
+dnl FIXME: version checking does not work currently
+dnl
+dnl Example:
+dnl AM_PATH_FFMPEG(0.4.6, , AC_MSG_ERROR([*** FFMPEG >= 0.4.6 not installed)) 
+dnl
+dnl Defines FFMPEG_LIBS
+dnl FIXME: should define FFMPEG_VERSION
+dnl
+
+AC_DEFUN(AM_PATH_FFMPEG,
+[
+  dnl allow for specification of a source path (for uninstalled)
+  AC_ARG_WITH(ffmpeg-source,
+    AC_HELP_STRING([--with-ffmpeg-source=DIR],
+                   [Directory where FFmpeg source is (optional)]),
+    ffmpeg_source="$withval", ffmpeg_source="")
+
+  dnl save CFLAGS and LIBS here
+  CFLAGS_save=$CFLAGS
+  LIBS_save=$LIBS
+  if test "x$ffmpeg_source" != "x"; then
+    dnl uninstalled FFmpeg copy
+    AC_MSG_NOTICE([Looking for FFmpeg source in $ffmpeg_source])
+    CFLAGS="-I$ffmpeg_source/libav -I$ffmpeg_source/libavcodec"
+    LIBS="-L$ffmpeg_source/libav -L$ffmpeg_source/libavcodec"
+    AC_DEFINE_UNQUOTED(HAVE_FFMPEG_UNINSTALLED, 1,
+                       [defined if we compile against uninstalled FFmpeg])
+    FFMPEG_COMMON_INCLUDE="#include <common.h>"
+  else
+    FFMPEG_COMMON_INCLUDE="#include <ffmpeg/common.h>"
+  fi
+  
+  dnl check for libavcodec
+  AC_CHECK_LIB(avcodec, avcodec_init, HAVE_FFMPEG=yes, HAVE_FFMPEG=no)
+  
+  dnl check for avcodec.h and avformat.h
+  if test "x$ffmpeg_source" != "x"; then
+    dnl uninstalled
+    AC_CHECK_HEADER(avcodec.h, , HAVE_FFMPEG=no, [/* only compile */])
+    AC_CHECK_HEADER(avformat.h, , HAVE_FFMPEG=no, [/* only compile */])
+  else
+    AC_CHECK_HEADER(ffmpeg/avcodec.h, , HAVE_FFMPEG=no)
+    AC_CHECK_HEADER(ffmpeg/avformat.h, , HAVE_FFMPEG=no)
+  fi
+
+dnl now check if it's sufficiently new
+
+  AC_LANG_SAVE()
+  AC_LANG_C()
+
+  dnl FIXME: we use strcmp, which we know is going to break if ffmpeg ever uses
+  dnl two digits for any of their version numbers.  It makes the test so much
+  dnl easier though so let's ignore that
+  AC_TRY_RUN([
+$FFMPEG_COMMON_INCLUDE
+#include <stdio.h>
+#include <string.h>
+
+int
+main ()
+{
+  if (strcmp (FFMPEG_VERSION, "$1") == -1)
+  {
+    fprintf (stderr,
+             "ERROR: your copy of ffmpeg is too old (%s)\n", FFMPEG_VERSION);
+    return 1;
+  }
+  else
+    return 0;
+}
+], , HAVE_FFMPEG=no)
+
+dnl now do the actual "do we have it ?" test
+  if test "x$HAVE_FFMPEG" = "xyes"; then
+    FFMPEG_LIBS="$LIBS -lavcodec -lavformat"
+    FFMPEG_CFLAGS="$CFLAGS"
+    AC_MSG_NOTICE(we have ffmpeg)
+    dnl execute what we have to because it's found
+    ifelse([$2], , :, [$2])
+  else
+    FFMPEG_LIBS=""
+    FFMPEG_CFLAGS=""
+    dnl execute what we have to because it's not found
+    ifelse([$3], , :, [$3])
+  fi
+
+dnl make variables available
+  AC_SUBST(FFMPEG_LIBS)
+  AC_SUBST(FFMPEG_CFLAGS)
+  AC_SUBST(HAVE_FFMPEG)
+  AC_LANG_RESTORE()
+  CFLAGS=$CFLAGS_save
+  LIBS=$LIBS_save
+])