Re: [FFmpeg-devel] [RFC] FFmpeg Execution Graph Visualization

["softworkz ." <softworkz-at-hotmail.com@ffmpeg.org>]

> -----Original Message-----
> From: ffmpeg-devel <ffmpeg-devel-bounces@ffmpeg.org> On Behalf Of
> Nicolas George
> Sent: Donnerstag, 27. März 2025 20:28
> To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
> Subject: Re: [FFmpeg-devel] [RFC] FFmpeg Execution Graph Visualization
> 
> Stefano Sabatini (HE12025-03-26):
> > One of the possible uses is to expose the data printed by
> > filters. E.g. detection filters are printing the information either in
> > the stderr using custom formats, this should really be converted to
> > something easier to consume (whatever formats for which you don't
> > need a custom parser).
> >
> > The metadata muxer also might benefit from using a text writer, to
> > avoid again the need for a custom parser, and probably there are more
> > use cases easy to spot.
> 
> For the record, I have had detailed plans for all this for years. But
> since it is very related to strings, it requires AVWriter, and it
> requires the abstraction and type description layer that I want to
> introduce that starts with AVWriter. 

Hi Nicolas,

after doing all this, I came to the conclusion that a better string API would really be useful for these kinds of things (albeit not a necessity).

I thought I might take another look, could you point me at the latest version of your work in this regard?

> > So at some point we want to make this API accessbile from the
> > libraries, that is to move them into libavutil. Again, it's fine to
> > expose this at the tools level first so we can experiment and refine
> > the interface before moving to a stable one.
> 
> I wild recommend using the fftools as a staging area.

Yup, that's what we're doing. There's quite a range of improvements I'm seeing which should be done before making anything public.

sw



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