[FFmpeg-user] Mpg

Sven C. Dack sven.c.dack at sky.com
Tue Sep 13 19:35:30 EEST 2016

On 13/09/16 16:56, Carl Eugen Hoyos wrote:
> 2016-09-10 19:59 GMT+02:00 Juan O Batista <orestesb at comcast.net>:
>> ffmpeg -i input.mov -i cap.srt -codec:v mpeg2video -b:v 10M -c:a mp2
>> -b:a 192k -ar 48000 -r 29.97 -timecode 00:01:00:00 -qscale:v 2
>> -codec:a mp2 -b:a 192k output.mpeg
> I had missed this message, sorry.
> If your input does not contain Closed Captions (but other subtitles)
> you cannot succeed because FFmpeg does not contain a Closed
> Captions encoder.

He mentioned a53cc, which appears as a flag to libx264 ("-a53cc true") and 
enables ... something. I've given it a brief look, but couldn't figure how it's 
supposed to work. I was hoping someone might have experience with it, because it 
must have a reason for it to be in the code.


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