[FFmpeg-devel] [PATCH] Add 'Presentation Y offset' metadata

[tomas.hardin at codemill.se]

On 2015-03-30 12:19, tim nicholson wrote:
> Some software mis decodes IMX material in mxf if this metadata field is
> missing. See the discussion on the ffmpeg ML:-
> 
> "[FFmpeg-user] How to set 3 specific metadata flags
> (ITU601/displayoffset) in FFmpegs IMX50 MXF-OP1a encoding?"
> 
> This patch add this field to mxf wrapped material.

Looks fine, but I know from experience that all this stuff gets tricky 
quickly. Like there should be mechanisms in lavf for dealing with 
presentation rectangles and all that jazz, including different aspect 
ratios at different layers.

/Tomas