[FFmpeg-user] Repeatable resolution issue exporting mxfs, 1080p is coming out as 1088p

[William Jones]

Yeah Vincent, I read into mod16 stuff. Interesting but unfortunately leads
to mostly dead ends. It seems that when converting .movs it knows that
although the maths says 1088 we actually want 1080 and forces it through...
Unfortunately it doesn't do the same with mxfs!

Thanks
Will


On Mon, 27 Feb 2023, 10:42 pm Vincent Deconinck, <vdeconinck at gmail.com>
wrote:

> On Mon, Feb 27, 2023 at 5:33 PM William Jones <will at midasvfx.com> wrote:
>
> > Yeah ive treid in that and thats good but but was really hoping for a fix
> > in ffmpeg as than can be better added into our existing pipeline.
> >
>
> Hi,
> I read that "This is due to MPEG-2 video format, which requires the number
> of coded luma pixels to be divisible by 16".
> Indeed 1080 cannot be divided by 16, so the inner structure must be 1088,
> although the "usable" (displayed) height will be 1080.
> So I don't think it's a bug, I think that's just the way it is.
> Vincent
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