Files
FFmpeg/libavcodec
younengxiao 1b1f602699 avcodec/d3d12va_encode: set extradata for global header when muxing AV1 to MKV
When the muxer sets AV_CODEC_FLAG_GLOBAL_HEADER (as MKV does), the codec
must populate avctx->extradata with the sequence header so the muxer can
write the av1C codec private entry. Otherwise, the mkv muxer will return
AVERROR_INVALIDDATA on the first packet (Invalid data found when
processing input).

Example usage:
  # use mkv container:
  ffmpeg -hwaccel d3d12va -hwaccel_output_format d3d12 -i input.mp4 -c:v av1_d3d12va output.mkv

Signed-off-by: younengxiao <steven.xiao@amd.com>
2026-07-22 03:18:18 +00:00
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