Hi, On Mon, Jun 26, 2023 at 1:47 PM Vignesh Venkatasubramanian < vigneshv-at-google....@ffmpeg.org> wrote:
> In some versions of libsvtav1, setting intra_period_length to 0 > does not produce the intended result (i.e.) all frames produced > are not keyframes. > > Instead handle the gop_size == 1 as a special case by setting > the pic_type to EB_AV1_KEY_PICTURE when encoding each frame so > that all the output frames are keyframes. > > SVT-AV1 Bug: https://gitlab.com/AOMediaCodec/SVT-AV1/-/issues/2076 > > Example command: ffmpeg -f lavfi -i testsrc=duration=1:size=64x64:rate=30 > -c:v libsvtav1 -g 1 -y test.webm > > Before: Only first frame is keyframe. > After: All frames are keyframes. > > Signed-off-by: Vignesh Venkatasubramanian <vigne...@google.com> > --- > libavcodec/libsvtav1.c | 16 +++++++++++++++- > 1 file changed, 15 insertions(+), 1 deletion(-) > It feels a bit dirty to add workarounds in ffmpeg library wrappers for bugs in these libraries. Not 100% against it, but it's not particularly great. Ronald _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
