diff options
Diffstat (limited to 'video')
-rw-r--r-- | video/decode/vd_lavc.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/video/decode/vd_lavc.c b/video/decode/vd_lavc.c index 0f31de9f02..79adc311a9 100644 --- a/video/decode/vd_lavc.c +++ b/video/decode/vd_lavc.c @@ -666,6 +666,19 @@ static void init_avctx(struct dec_video *vd) if (avcodec_open2(avctx, lavc_codec, NULL) < 0) goto error; + // Sometimes, the first packet contains information required for correct + // decoding of the rest of the stream. The only currently known case is the + // x264 build number (encoded in a SEI element), needed to enable a + // workaround for broken 4:4:4 streams produced by older x264 versions. + if (lavc_codec->id == AV_CODEC_ID_H264 && c->first_packet) { + AVPacket avpkt; + mp_set_av_packet(&avpkt, c->first_packet, &ctx->codec_timebase); + avcodec_send_packet(avctx, &avpkt); + avcodec_receive_frame(avctx, ctx->pic); + av_frame_unref(ctx->pic); + avcodec_flush_buffers(ctx->avctx); + } + return; error: |