[FFmpeg-devel] ffmpeg Filtergraph Output

[lance.lmwang at gmail.com]

On Sun, May 24, 2020 at 11:49:28AM +0000, Soft Works wrote:
> 
> > -----Original Message-----
> > From: ffmpeg-devel <ffmpeg-devel-bounces at ffmpeg.org> On Behalf Of
> > lance.lmwang at gmail.com
> > Sent: Sunday, May 24, 2020 1:24 PM
> > To: ffmpeg-devel at ffmpeg.org
> > Subject: Re: [FFmpeg-devel] ffmpeg Filtergraph Output
> > 
> > On Sun, May 24, 2020 at 02:43:52AM +0000, Soft Works wrote:
> > > Hello,
> > >
> > > I've seen the commit about the option for dumping the filtergraph and that
> > reminded me about something that I'd be willing to contribute in case
> > anybody likes it.
> > >
> > > A while ago I was looking for a way to get information about the
> > filtergraphs that ffmpeg builds at runtime, the individual formats that have
> > been negotiated between input and output pins and which filters have a
> > hardware context.
> > >
> > > I had expected that this is what the graph2dot is intended to do, but that
> > wasn't the case. Turning a filter string into a graph is not what I was looking
> > for.
> > 
> > By your image, I haven't see big difference with the graph2dot image output.
> > No SAR info, but with TB info.
> 
> You probably need to look at the JSON file rather than the image.
> 
> Graphdump doesn't provide the information that I'm interested in (e.g.
> hardwarecontexts) and the output is not really parseable.

I think it's considerable to add more information if it's usable even for
the DOT format, it's interested to add json format output also. What tool to
convert the json to graph?

> 
> I have no urgency to get this merged. I'm just asking whether 
> someone would be interested at all.
> 
> softworkz
> 
> 
> 
> 
> 
> 
> 
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-- 
Thanks,
Limin Wang