[FFmpeg-devel] avisynth as an internal filter, any objections?

[Roger Pack]

On Thu, Jul 18, 2024 at 6:16 AM Stefan Oltmanns via ffmpeg-devel
<ffmpeg-devel at ffmpeg.org> wrote:
>
> AviSynth (or better VapourSynth) as filter sounds great, but is it possible?
> The reason why input plugins (like FFmpegSource2) in
> AviSynth/VapourSynth create an index file in a first pass is to allow
> frame-accurate random access to the video. Also the exact number of
> frames of a clip has to be known, because I could access that property
> in VapourSynth.

Yeah that's a good question, wonder how vsrawsource does it...
related: https://forum.videohelp.com/threads/404486-Ffmpeg-piped-as-source-to-avisynth