[FFmpeg-devel] [PATCH] mov: Support mdcv and clli boxes for mastering display an color light level

[James Almer]

On 11/27/2017 5:54 PM, Vittorio Giovara wrote:
>> On 11/27/2017 5:20 PM, James Almer wrote:
>> Where are these two defined? Because
>> https://github.com/webmproject/vp9-dash/blob/master/VPCodecISOMediaFileFormatBinding.md
>> describes coll and smdm, and those are already supported.
> 
> these are unrelated to vp9 (or mp4), they are the mov-only atoms used by
> some upcoming tools to signal hdr

Pointless duplicate atoms :/ At least these don't use fixed point
values, so they are nicer.
I assume no file will have both smdm and mdcv, or coll and clli, so
reusing the MOVStreamContext fields should be ok, but maybe free the
pointers first?

Can't comment about the implementation as i don't have access to the spec.