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ffdec: don't wait for keyframe after discont

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After a DISCONT, mark the next frame with DISCONT but don't wait for a new
keyframe. This greatly improves performance on lossy networks or currupted
frames as the decoder can usually continue and conceil errors up to the next
keyframe.
This commit is contained in:
Wim Taymans 2009-07-01 11:23:59 +02:00
parent 31a9d9330b
commit fe10ecd097
1 changed files with 1 additions and 1 deletions
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2
ext/ffmpeg/gstffmpegdec.c
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@ -2316,7 +2316,6 @@ gst_ffmpegdec_chain (GstPad * pad, GstBuffer * inbuf)
gst_ffmpegdec_drain (ffmpegdec);
gst_ffmpegdec_flush_pcache (ffmpegdec);
avcodec_flush_buffers (ffmpegdec->context);
ffmpegdec->waiting_for_key = TRUE;
ffmpegdec->discont = TRUE;
ffmpegdec->last_out = GST_CLOCK_TIME_NONE;
ffmpegdec->next_ts = GST_CLOCK_TIME_NONE;
@ -2333,6 +2332,7 @@ gst_ffmpegdec_chain (GstPad * pad, GstBuffer * inbuf)
/* do early keyframe check pretty bad to rely on the keyframe flag in the
* source for this as it might not even be parsed (UDP/file/..). */
if (G_UNLIKELY (ffmpegdec->waiting_for_key)) {
GST_DEBUG_OBJECT (ffmpegdec, "waiting for keyframe");
if (GST_BUFFER_FLAG_IS_SET (inbuf, GST_BUFFER_FLAG_DELTA_UNIT) &&
oclass->in_plugin->type != CODEC_TYPE_AUDIO)
goto skip_keyframe;