[Cin] The best strategy to render yuv (mpeg, limited range) from yuvj (jpeg, full range)?

Andrew Randrianasulu randrianasulu at gmail.com
Wed Sep 4 16:17:42 CEST 2024


вс, 1 сент. 2024 г., 02:00 Andrew Randrianasulu <randrianasulu at gmail.com>:

> On Sun, Sep 1, 2024 at 12:05 AM Andrea paz via Cin
> <cin at lists.cinelerra-gg.org> wrote:
> >
> > I have changed the manual, see if it is okay. I also attach the txt so
> > you can check and correct the text. But I have a doubt: I thought that
> > the Color Range setting only affects the playback in the Compositor
> > window and not the rendering. Am I wrong?
>
> well, it affects decoding via ffmpeg libs AND encoding via same ..so
> depend on how your decoders configured
> you may not get its effect even in viewer/compositor, from my
> understanding.
>

hm, it seems I was wrong in that jpeg/mpeg color range setting affects
*all* decoders/encoders?

there is funny bug if I set project to yuv8 and output to Open-GL,
subtracting two sources on timeline - I got big green tint over all
picture, visible on compositor's scope. Probably another bug, but even with
x11 output I see vectoroscope  green segment jumping as I switch
preferences = > color range.


> But if both decoding and encoding done via ffmpeg libs ...it should
> affect encoding as far as i can read code.
>
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>
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