[FFmpeg-user] What argument(s) does 'ashowinfo' take?

[Moritz Barsnick]

On Sun, Mar 01, 2020 at 19:39:02 -0500, Mark Filipak wrote:
> On 03/01/2020 06:49 PM, Carl Eugen Hoyos wrote:
> > No arguments, see:
> > $ ffmpeg -help filter=ashowinfo
>
> Thanks, Carl. Are there any usage examples?

Since it doesn't take any arguments (or environment variables or input
files), you can only insert it into a filter chain and see it operate.

> Regarding 'ffprobe', I think I get it now. If 'ffprobe' doesn't
> recognize a help topic, instead of reporting that the topic doesn't
> exist as an 'ffprobe' item, it prints general help. That's not very
> friendly.

Yes, that's the case for all the command line tools. I don't know
whether it's on purpose - I see the case for programs with a much
smaller help output - or whether a patch would be appreciated. It also
slightly annoys me.

Cheers,
Moritz