Container / Stream vs Stream

[jriker1]

When I encode my HEVC HDR10 content some of the values give me:

colour_description_present_Source : Container / Stream
colour_range_Source : Container / Stream
colour_primaries_Source : Container / Stream
transfer_characteristics_Source : Container / Stream
matrix_coefficients_Source : Container / Stream

Do I need to output to just the video file like filename.hevc rather than into a container like filename.mkv? Note the above is showing on the video intself, not the container.

[benwaggoner]

In many devices the decoder just gets the elementary stream, and acts based on that metadata. What you are doing should work correctly on every device I can think of.

I suspect there are devices that ignore that metadata if it was in the .mp4 container but not in the ES, and would act based on the ES if there is a discrepancy.