[FFmpeg-user] teletext.dat

Carl Eugen Hoyos cehoyos at ag.or.at
Sun Feb 14 22:09:26 CET 2016

william Gunnells <gunnells <at> gmail.com> writes:

> Any thoughts?

Please do not top-post here!

Your original command line was:
> ffmpeg -i output.ts -vn -an -f rawvideo -copyinkf 
> -scodec copy teletext.dat

-scodec copy ensures that the teletext is not decoded 
but put (unchanged) into a new file. I believe there 
could be (hypothetically) software that is able to 
read the file, FFmpeg is not.

If you want to decode the teletext (subtitle) stream 
you have to know the page (FFmpeg does not autodetect 
it), and you need FFmpeg compiled with libzvbi support.
You then can transcode the teletext subtitles into the 
subtitle format you need.

Carl Eugen

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