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No information display in ffmpeg #653

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ghost opened this issue Jan 4, 2021 · 3 comments
Closed

No information display in ffmpeg #653

ghost opened this issue Jan 4, 2021 · 3 comments

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@ghost
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ghost commented Jan 4, 2021

http://www.vapoursynth.com/2020/08/r52-titles-are-meaningless/

why is there no information display in ffmpeg?

Since comments are closed, I'll reply here.
ffmpeg must be compiled statically with vapoursynth support. In this case, the information will be shown and vspipe is not required.
Before import, you need to specify
ffmpeg -f vapoursynth -i input.vpy
Apparently this is a ffmpeg bug. Linux AviSynth has a similar problem
AviSynth/AviSynthPlus#194
@myrsloik
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myrsloik commented Jan 4, 2021

Why are you reporting it here if it's an ffmpeg bug?

@ghost
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ghost commented Jan 4, 2021

I am planning to inform the ffmpeg team about this issue.
But I think the information will also be useful in the Issues section of VapourSynth project. It will be possible to refer to it.

@ghost
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ghost commented Jan 6, 2021

https://trac.ffmpeg.org/ticket/9059

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@myrsloik