[FFmpeg-user] Generate MPEG Transport stream from audio files only

[Carl Zwanzig]

On 3/9/2018 7:05 AM, Pierre Pasquet wrote:
> I have tried your solution and here’s what I get : Unable to find a suitable output format for 'color=s=:c=black:r='
> color=s=:c=black:r=: Invalid argument

You can't just drop in "color=s=$outFormat:c=black:r=$videoRate" and expect 
it to work unless variables outFormat and videoRate are defined. Take a look 
at the color filter docs for the relevant values. (For me, both outFormat 
and videoRate are usually "ntsc").

z!