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adding 3D metadata to mp4: frame-packing=3
I need to add a metadata property: frame-packing=3 to a 3D mp4 file with ffmpeg.
This is the command I use:
ffmpeg -i input.mp4 -vcodec libx264 -metadata frame-packing=3 output.mp4
The above command does not add a new property called frame-packing to the output mp4 file.
Could someone tell me if I am doing anything wrong, or there is another way?
Thanks,
Raj