adpcm_swf support in WAV is completely broken. block_align isn't set correctly, so the demuxer gives incorrect packets to the decoder. The encoder doesn't provide a value for block_align, so it's set to 1.
All of this has no bearing on (de)muxing to FLV. See https://trac.ffmpeg.org/ticket/5829. v2: [1] - Fix FATE failure - Move block_size check into ff_put_wav_header() - Allow a custom block size now that [2] is merged. [1]: https://ffmpeg.org/pipermail/ffmpeg-devel/2020-October/271262.html [2]: https://ffmpeg.org/pipermail/ffmpeg-devel/2020-October/271001.html Zane van Iperen (6): avformat/riff: prevent muxing adpcm_swf with a variable block size avcodec/adpcm_swf: support decoding multiple fixed-sized blocks at once avcodec/adpcm_swf: set block_align when encoding avcodec/adpcm_swf: support custom block size for encoding avcodec/adpcmenc: cosmetics fate: add test for adpcm_swf in wav libavcodec/adpcm.c | 15 +++++++++++++-- libavcodec/adpcmenc.c | 9 ++++----- libavformat/riffenc.c | 6 ++++++ tests/fate/acodec.mak | 4 ++++ tests/ref/acodec/adpcm-swf-wav | 4 ++++ 5 files changed, 31 insertions(+), 7 deletions(-) create mode 100644 tests/ref/acodec/adpcm-swf-wav -- 2.28.0 _______________________________________________ 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".
