[FFmpeg-devel] [PATCH v3 0/1] avcodec/libjxlenc: Add libjxl_anim encoder

Zsolt Vadász zsolt_vadasz at protonmail.com
Thu Dec 21 23:22:11 EET 2023


This patchset adds support for encoding animated JPEG XL images via a
new encoder (libjxl_anim). When using the encoder, the output format
needs to be set to raw video, as shown below:
`ffmpeg -i sample.gif -c:v libjxl_anim -f rawvideo out.jxl`

V3 changes:
- Renamed encoder to libjxl_anim for consistency
- PTS is now calculated
- JxlFrameHeader.duration is calculated from PTS instead of relying on
  AVFrame->duration being set
- This version also does not rely on AVCodecContext->frame_num either
- Disabled the container container format (JxlEncoderUseContainer)

Zsolt Vadász (1):
  avcodec/libjxlenc: Add libjxl_animated encoder

 configure              |   1 +
 libavcodec/allcodecs.c |   1 +
 libavcodec/libjxlenc.c | 226 ++++++++++++++++++++++++++++++++++-------
 3 files changed, 189 insertions(+), 39 deletions(-)

-- 
2.34.1



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