[FFmpeg-user] How do I create an ffmpeg command line?

Michael Koch astroelectronic at t-online.de
Sun Mar 1 12:39:57 EET 2020

Am 01.03.2020 um 11:30 schrieb Mark Filipak:
>> Then please test the following (assuming your input is actually 
>> telecined, if it is not the command is slow and makes little sense. 
>> Remember that soft-telecined is progressive and not telecined from 
>> FFmpeg‘s point of view):
> Not telecined from any point of view, Carl.
> For soft-telecined video, I just want to remux to MKV. For NTSC 
> hard-telecined sources, I want to detelecine (fieldmatch & decimate) 
> to 24p and then wrap the result in MKV.
>> $ ffmpeg -i input -vf fieldmatch out.mov
> I assume that '-vf' is the same as '-filter:v'? What about 'decimate'? 
> Do I just do this?
> 'ffmpeg -i <infile> -vf fieldmatch decimate <outfile>

Two or more filters in the filter chain must be separated by a comma, 
and it's a good idea to enclose the filter chain in double quotes:
ffmpeg -i <infile> -vf "fieldmatch,decimate" <outfile>

> Again, I apologize for asking such seemingly primitive questions. I'm 
> just getting so weary that I may not be thinking straight.
> Is <outfile> always the last element in the line



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