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ext/ffmpeg/gstffmpegdec.c: When H264 is presented without codec_data, use a parser to frame it by assuming that no co...

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Original commit message from CVS:
* ext/ffmpeg/gstffmpegdec.c: (gst_ffmpegdec_open),
(gst_ffmpegdec_chain):
When H264 is presented without codec_data, use a parser to frame it
by assuming that no codec_data implies it is unpacketised.
Always use the return value from the parser to advance the input
buffer position.
This commit is contained in:
Jan Schmidt 2006-11-27 18:58:38 +00:00
parent 38970e4d85
commit 1359d61313
2 changed files with 37 additions and 10 deletions
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10
ChangeLog
View file

@ -1,3 +1,13 @@
2006-11-27 Jan Schmidt <thaytan@mad.scientist.com>
* ext/ffmpeg/gstffmpegdec.c: (gst_ffmpegdec_open),
(gst_ffmpegdec_chain):
When H264 is presented without codec_data, use a parser to frame it
by assuming that no codec_data implies it is unpacketised.
Always use the return value from the parser to advance the input
buffer position.
2006-11-17 Thomas Vander Stichele <thomas at apestaart dot org>
* ext/ffmpeg/gstffmpegenc.c: (gst_ffmpegenc_register):

37
ext/ffmpeg/gstffmpegdec.c
View file

@ -487,10 +487,22 @@ gst_ffmpegdec_open (GstFFMpegDec * ffmpegdec)
case CODEC_ID_MPEG4:
case CODEC_ID_MJPEG:
case CODEC_ID_MP3:
case CODEC_ID_H264:
GST_LOG_OBJECT (ffmpegdec, "not using parser, blacklisted codec");
ffmpegdec->pctx = NULL;
break;
case CODEC_ID_H264:
/* For H264, only use a parser if there is no context data, if there is,
* we're talking AVC */
if (ffmpegdec->context->extradata_size == 0) {
GST_LOG_OBJECT (ffmpegdec, "H264 with no extradata, creating parser");
ffmpegdec->pctx = av_parser_init (oclass->in_plugin->id);
}
else {
GST_LOG_OBJECT (ffmpegdec,
"H264 with extradata implies framed data - not using parser");
ffmpegdec->pctx = NULL;
}
break;
default:
GST_LOG_OBJECT (ffmpegdec, "Using parser");
ffmpegdec->pctx = av_parser_init (oclass->in_plugin->id);
@ -1871,17 +1883,22 @@ gst_ffmpegdec_chain (GstPad * pad, GstBuffer * inbuf)
GST_LOG_OBJECT (ffmpegdec,
"parser returned res %d and size %d", res, size);
/* if there is no output, we must break and wait for more data. also the
* timestamp in the context is not updated. */
if (size == 0)
break;
GST_LOG_OBJECT (ffmpegdec, "consuming %d bytes. Next ts at %d, ffpts:%"G_GINT64_FORMAT,
size, left, ffmpegdec->pctx->pts);
GST_LOG_OBJECT (ffmpegdec, "consuming %d bytes. Next ts at %d, ffpts:%"
G_GINT64_FORMAT, size, left, ffmpegdec->pctx->pts);
/* there is output, set pointers for next round. */
bsize -= size;
bdata += size;
bsize -= res;
bdata += res;
/* if there is no output, we must break and wait for more data. also the
* timestamp in the context is not updated. */
if (size == 0) {
if(bsize>0)
continue;
else
break;
}
if (left <= size) {
left = 0;
/* activate the pending timestamp/duration and mark it invalid */