[FFmpeg-user] gbrpf32le in filter_complex

[Paul B Mahol]

On Fri, May 9, 2025 at 7:24 PM Mark Filipak <markfilipak.imdb at gmail.com>
wrote:

> On 09/05/2025 15.05, Andrew Randrianasulu wrote:
> > пт, 9 мая 2025 г., 21:50 Mark Filipak <markfilipak.imdb at gmail.com>:
> >
> >> I make two statements below regarding the core of the filter_complex.
> >> I'd be grateful if you'd point out statements that are wrong.
> >> (Of course, anything more you'd like to contribute is welcome, too.)
> >>
> >> In the core of filter_complex, pixel format is always gbrpf32le.
> >
> > I do not think this is true ... at least in cinelerra-gg  many ffmpeg
> > filters run as 8bpc, on my fx 4300 (in 32 bit mode)  difference between
> > 8bpc and 32fp surely very noticeable.
>
> Thank you, Andrew. Two more statements for you to confirm or refute.
>
> FFmpeg's picture pipeline is always gbrpf32le.
>

Not true.


> Pictures are always converted from gbrpf32le to other formats for filters
> that don't support gbrpf32le.
>

Yes. Filters that do not have support for certain input pixel format will
have help of scale filter.
Scale filter will convert format to another format that filter supports.


>
> Thanks! -- Mark.
>
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