[quietvoid]

I've been debugging playback for my Firestick, the metadata doesn't seem to be skipped by ffmpeg.
For profile 5, at least setting the MediaFormat to output PQ makes the TV switch to HDR10, but never Dolby Vision.

I've tried setting the profile, level, codecs-string, nothing makes a difference.
The decoding also starts only after the first demuxed buffer conversion, which contains the metadata NAL unit.
So it should be contained into the very first buffer sent to the decoder.

The only thing that might differ is the buffer format the decoder expects, but there's no documentation.
Running out of ideas as to why it fails to work.

Anyways, as I type this I discover a way to make it trigger Dolby Vision. Setting the NAL header length to 4 for the unit.
All the mp4, mkv samples work perfectly except for FEL. As expected.