[FFmpeg-user] Yes or No? About the processing pipeline.

[Paul B Mahol]

On Tue, Jun 17, 2025 at 5:41 PM Mark Filipak <
markfilipak.imdb-at-gmail.com at ffmpeg.org> wrote:

> On 17/06/2025 13.37, Paul B Mahol wrote:
> > On Tue, Jun 17, 2025 at 5:33 PM Mark Filipak <
> > markfilipak.imdb-at-gmail.com at ffmpeg.org> wrote:
> >
> >> On 17/06/2025 13.31, Paul B Mahol wrote:
> >>> On Tue, Jun 17, 2025 at 5:24 PM Mark Filipak <
> >>> markfilipak.imdb-at-gmail.com at ffmpeg.org> wrote:
> >>>
> >>>> On 17/06/2025 13.20, Paul B Mahol wrote:
> >>>>> On Tue, Jun 17, 2025 at 5:18 PM Mark Filipak <
> >>>>> markfilipak.imdb-at-gmail.com at ffmpeg.org> wrote:
> >>>>>
> >>>>>> On 17/06/2025 13.15, Paul B Mahol wrote:
> >>>>>>> On Tue, Jun 17, 2025 at 5:12 PM Mark Filipak <
> >>>>>>> markfilipak.imdb-at-gmail.com at ffmpeg.org> wrote:
> >>>>>>>
> >>>>>>>> Yes (true) or No (false)?
> >>>>>>>>
> >>>>>>>> If the input is 8-bit ybr420-smpte170m, then the processing
> pipeline
> >>>> is
> >>>>>>>> also 8-bit ybr420-smpte170m.
> >>>>>>>>
> >>>>>>> Depends on all components used in pipeline.
> >>>>>>
> >>>>>> Sorry. I'm 'talking' about the start of the processing pipeline,
> >> coming
> >>>>>> out of the decoder.
> >>>>>> Let me restate the issue:
> >>>>>>
> >>>>>> If the input is 8-bit ybr420-smpte170m, then the decoder outputs
> 8-bit
> >>>>>> ybr420-smpte170m.
> >>>>>> Yes or No.
> >>>>>
> >>>>> Definition of decoder is to decode data, not invent new data or alter
> >>>> data
> >>>>> in any way.
> >>>>
> >>>> Does that mean 'Yes': Decoders that are fed 8-bit ybr420-smpte170m
> then
> >>>> output 8-bit ybr420-smpte170m?
> >>>>
> >>>
> >>> I write words, In my school I learned much more words than simple:
> 'Yes'
> >>> and 'No'.
> >>
> >> Good for you.
> >>
> >> Decoders that are fed 8-bit ybr420-smpte170m then output 8-bit
> >> ybr420-smpte170m.
> >> Yes or No?
> >
> > Maybe.
>
> Paul, you appear to be intentionally keeping FFmpeg users ignorant of the
> facts.
>

No going to play your games.


>
>
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