[FFmpeg-user] 'xyz2rgb' filter

Moritz Barsnick barsnick at gmx.net
Tue Jul 7 17:29:23 CEST 2015

On Tue, Jul 07, 2015 at 14:49:11 +0000, Carl Eugen Hoyos wrote:
> ProRes stores ten bit YUV, both with and 
> without chroma-subsampling and with and 
> without transparency information.
> If a white paper now claims that ProRes 
> stores "RGBA" what else than nonsense 
> is this in your opinion?

Complete command line and uncut console output missing! SCNR.

It depends on who defines ProRes, and what the agreed standard or
specification (if any) is.

IIUC it is the internal Final Cut Pro codec. So why not believe their
white papers? But this white paper does not even claim that they
_store_ RGB(A):


They only ever write of "from/to RGB(A)" or "RGB(+Alpha)

I'm sure the reverse-engineerers know even better, e.g. by the missing
of any indicator for RGB pixel formats.


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