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libopenh264dec: Use a newer decoding entry point function 

The "new" entry point actually has existed since OpenH264 1.4 in
2015 and is the the recommended decoding entry point.

The name of this function, DecodeFrameNoDelay, is rather backwards
considering that it doesn't return the latest decoded frame immediately,
but actually does proper delaying and reordering of frames.

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö 2019-01-25 10:28:46 +02:00
parent 28a8b5413b
commit eec93e5709
1 changed files with 9 additions and 1 deletions
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10
libavcodec/libopenh264dec.c
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@ -109,10 +109,18 @@ static int svc_decode_frame(AVCodecContext *avctx, void *data,
#endif
} else {
info.uiInBsTimeStamp = avpkt->pts;
#if OPENH264_VER_AT_LEAST(1, 4)
// Contrary to the name, DecodeFrameNoDelay actually does buffering
// and reordering of frames, and is the recommended decoding entry
// point since 1.4. This is essential for successfully decoding
// B-frames.
state = (*s->decoder)->DecodeFrameNoDelay(s->decoder, avpkt->data, avpkt->size, ptrs, &info);
#else
state = (*s->decoder)->DecodeFrame2(s->decoder, avpkt->data, avpkt->size, ptrs, &info);
#endif
}
if (state != dsErrorFree) {
av_log(avctx, AV_LOG_ERROR, "DecodeFrame2 failed\n");
av_log(avctx, AV_LOG_ERROR, "DecodeFrame failed\n");
return AVERROR_UNKNOWN;
}
if (info.iBufferStatus != 1) {