[FFmpeg-user] Problem with pixel format and/or missing constant

Carl Eugen Hoyos ceffmpeg at gmail.com
Thu Mar 12 00:45:25 EET 2020

Am Mi., 11. März 2020 um 23:15 Uhr schrieb Mark Filipak
<markfilipak.windows+ffmpeg at gmail.com>:
> On 03/11/2020 06:09 PM, Carl Eugen Hoyos wrote:
> > Am Mi., 11. März 2020 um 23:05 Uhr schrieb Mark Filipak
> > <markfilipak.windows+ffmpeg at gmail.com>:

> >> For what it's worth, though the MPEG encoder specs support full, 16-bit
> >> monochrome (black-&-white) that, theoretically, would better render
> >
> > I didn't know and I am mildly surprised (16bit video is very uncommon).
> > Otoh, "MPEG encoder spec" is not very precise...
> >
> >> monochrome video, all of the modern DVDs that I've encountered
> >> use YCbCr 4:2:0 for black-&-white movies.
> >
> > Because that is what the DVD specification requires.
> Ah! Well, that explains it. Thanks Carl Eugen. I haven't spent the
> $5-thousand for the DVD spec.

This is part of the publicly known, non-secret part of the specification.

> By the way, of course, I made a silly mistake. I should have written
> "full, 24-bit monochrome".

I am curious: Which MPEG specification defines 24-bit monochrome

Carl Eugen

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