This last one probably not yet in ffmpeg 6.1, I just saw this commit in ffmpeg.git:
commit a0821345eb31b727d93c9c3ed7d74d2774c73afa
Date: Wed Oct 4 09:40:15 2023 -0700
avformat/mov: Add support for demuxing still HEIC images They are similar to AVIF images (both use the HEIF container). The only additional work needed is to parse the hvcC box and put it in the extradata.
With this patch applied, ffmpeg (when built with an HEVC decoder) is able to decode the files in
Also add a couple of fate tests with samples from
Partially fixes trac ticket #6521.
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see also bunch of fixes for prores encoders.