Hi,

I was wondering if ffmpeg supports transfer of VUI and SEI info between an 
original bitstream and re-encoded bitstream (in a transcode scenario).

I have been digging through the documentation; the closest I can find is using 
-f metadata and -map_metadata but these don't seem to include the params I need.

This is specific to HDR bitstream transcode where I want to maintain 
information such as color_description_present_flag, colour_primaries, 
transfer_characteristics, etc.

Thanks,
Ben

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