[FFmpeg-user] Can ffmpeg ignore the "Cannot find a matching stream" error when using -filter_complex?

[Moritz Barsnick]

On Thu, Dec 03, 2015 at 10:17:25 +0800, Hugo Li wrote:
> ffmpeg -i INPUTFILE -filter_complex scale=400x300 -c:v libx264 -b:v 100k
[...]
> So, my question is can ffmpeg ignore the "-filter_complex" parameters if
> the input file doesn't contain video?

You filter isn't really complex, so you could use "-vf".

> I know ffmpeg can ignore "-s" option, but I have to use
> "-filter_complex" in my case.

Do you? If that is so, then *I* don't know. :)

Moritz