[FFmpeg-devel] [PATCH 3/3] lavc/decode: merge stereo3d information from decoder with packet side data

[James Almer]

On 9/22/2024 3:00 PM, Anton Khirnov wrote:
> The HEVC decoder will start setting stereoscopic view position (left or
> right) based on 3D Reference Displays Info SEI message in future
> commits. This information should be merged with container-derived
> stereo3D side data.

After this set, a re-encode with the CLI will have information at the 
container level that may not be correct, like type and view.

For mv-hevc it probably makes no difference currently, as type unspec 
and frame sequence are not supported values in any container, and view 
left/right is only supported in mov eyes box, which we currently don't 
write, but it nonetheless needs to be handled in some form, like by 
propagating global side data through the filterchain as you suggested.

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