ext/ffmpeg/gstffmpegcodecmap.c: WMV extradata (make #152798 work). J-frames are only available in the bitstream if th...

Original commit message from CVS:
* ext/ffmpeg/gstffmpegcodecmap.c: (gst_ffmpeg_codecid_to_caps),
(gst_ffmpeg_caps_with_codecid):
WMV extradata (make #152798 work). J-frames are only available
in the bitstream if the J-frame bit has been set in the extradata.
If not (or if extradata is not provided), the movie won't play.
* ext/ffmpeg/gstffmpegdec.c: (gst_ffmpegdec_close),
(gst_ffmpegdec_connect), (gst_ffmpegdec_chain):
Only close ffmpeg if privdata was allocated (else it segfaults).
Autodetect encoding bugs and workaround it. Don't copy data if
decoding failed.
* ext/ffmpeg/gstffmpegdemux.c: (gst_ffmpegdemux_loop):
Use read_frame() instead of read_packet() which is obsolete.

ChangeLog

@@ -1,3 +1,18 @@
+2004-09-20  Ronald S. Bultje  <rbultje@ronald.bitfreak.net>
+
+	* ext/ffmpeg/gstffmpegcodecmap.c: (gst_ffmpeg_codecid_to_caps),
+	(gst_ffmpeg_caps_with_codecid):
+	  WMV extradata (make #152798 work). J-frames are only available
+	  in the bitstream if the J-frame bit has been set in the extradata.
+	  If not (or if extradata is not provided), the movie won't play.
+	* ext/ffmpeg/gstffmpegdec.c: (gst_ffmpegdec_close),
+	(gst_ffmpegdec_connect), (gst_ffmpegdec_chain):
+	  Only close ffmpeg if privdata was allocated (else it segfaults).
+	  Autodetect encoding bugs and workaround it. Don't copy data if
+	  decoding failed.
+	* ext/ffmpeg/gstffmpegdemux.c: (gst_ffmpegdemux_loop):
+	  Use read_frame() instead of read_packet() which is obsolete.
+
 2004-09-16 Iain <iaingnome@gmail.com>
 
 	* ext/ffmpeg/gstffmpegmux.c (gst_ffmpegmux_register): Free name fix 

common

@@ -1 +1 @@
-Subproject commit 5ec931d243c53ddda5b2cbb9a2c21ce89747bcb4
+Subproject commit ded6dc5186cb7f8c64cb06a8591b9f787122c6f1

ext/ffmpeg/gstffmpegcodecmap.c

@@ -295,7 +295,7 @@ gst_ffmpeg_codecid_to_caps (enum CodecID codec_id,
       do {
         gint version = (codec_id == CODEC_ID_WMV1) ? 1 : 2;
 
-        if (context)
+        if (context && context->extradata_size)
         {
           GstBuffer *buffer;
 
@@ -343,7 +343,7 @@ gst_ffmpeg_codecid_to_caps (enum CodecID codec_id,
       do {
         gint version = (codec_id == CODEC_ID_WMAV1) ? 1 : 2;
     
-        if (context)
+        if (context && context->extradata_size)
         {
           GstBuffer *buffer;
 
@@ -355,9 +355,7 @@ gst_ffmpeg_codecid_to_caps (enum CodecID codec_id,
              "codec_data", GST_TYPE_BUFFER, buffer,
              "block_align", G_TYPE_INT, context->block_align,
              "bitrate", G_TYPE_INT, context->bit_rate, NULL);
-        }
+        } else {
-        else
-        {
           caps = GST_FF_AUD_CAPS_NEW ("audio/x-wma",
              "wmaversion", G_TYPE_INT, version,
              "block_align", GST_TYPE_INT_RANGE, 0, G_MAXINT,
@@ -1167,6 +1165,8 @@ gst_ffmpeg_caps_with_codecid (enum CodecID codec_id,
 
     case CODEC_ID_WMAV1:
     case CODEC_ID_WMAV2:
+    case CODEC_ID_WMV1:
+    case CODEC_ID_WMV2:
       do {
         const GValue *value;
         const GstBuffer *buf;

ext/ffmpeg/gstffmpegdec.c

@@ -219,6 +219,7 @@ gst_ffmpegdec_close (GstFFMpegDec *ffmpegdec)
   if (!ffmpegdec->opened)
     return;
 
+  if (ffmpegdec->context->priv_data)
     avcodec_close (ffmpegdec->context);
   ffmpegdec->opened = FALSE;
 
@@ -294,6 +295,9 @@ gst_ffmpegdec_connect (GstPad * pad, const GstCaps * caps)
   /* do *not* draw edges */
   ffmpegdec->context->flags |= CODEC_FLAG_EMU_EDGE;
 
+  /* workaround encoder bugs */
+  ffmpegdec->context->workaround_bugs |= FF_BUG_AUTODETECT;
+
   /* open codec - we don't select an output pix_fmt yet,
    * simply because we don't know! We only get it
    * during playback... */
@@ -395,9 +399,11 @@ gst_ffmpegdec_chain (GstPad * pad, GstData * _data)
           data = GST_BUFFER_DATA (inbuf);
           size = GST_BUFFER_SIZE (inbuf);
         }
+
         len = avcodec_decode_video (ffmpegdec->context,
             ffmpegdec->picture, &have_data, data, size);
-        if (have_data) {
+
+        if (len >= 0 && have_data) {
           /* libavcodec constantly crashes on stupid buffer allocation
            * errors inside. This drives me crazy, so we let it allocate
            * it's own buffers and copy to our own buffer afterwards... */

ext/ffmpeg/gstffmpegdemux.c

@@ -573,7 +573,7 @@ gst_ffmpegdemux_loop (GstElement * element)
   }
 
   /* read a package */
-  res = av_read_packet (demux->context, &pkt);
+  res = av_read_frame (demux->context, &pkt);
   if (res < 0) {
 #if 0
     /* This doesn't work - FIXME */