[FFmpeg-devel] [PATCH 1/2] lavc: add CEA-708 codec id.

compn tempn at twmi.rr.com
Sun Mar 16 23:33:17 CET 2014

On Sun, 16 Mar 2014 19:58:51 +0100
Nicolas George <george at nsup.org> wrote:

> Le decadi 20 ventôse, an CCXXII, Carl Eugen Hoyos a écrit :
> > (Do I understand correct that you are searching for 
> > EIA-608 samples?)
> Not exactly: I am rather looking for a sample with CEA-708 data that
> contains more than just wrapped EIA-608.
> > "Normal" samples:
> > http://samples.ffmpeg.org/MPEG2/subcc/
> > (At least Test for Quicktime 608 CC file.mov)
> > http://archive.org/download/FfmpegTest/BCSPA039_pre.mov
> > 
> > A maybe difficult sample:
> > http://samples.ffmpeg.org/ffmpeg-bugs/trac/ticket1482/
> > 
> > And an evil sample:
> > http://samples.ffmpeg.org/ffmpeg-bugs/trac/ticket3172/
> > 
> > I believe more samples exist if needed.
> Thanks for the pointers, I will try to look at them. How did you find
> them? Is there an index file with a list of all the samples and what
> they contain, or did you just find them by memory?

i'm willing to say that carl knows these by memory.
you can search trac for closed caption keyword.
carl and i are the maintainers of the samples repo (and carl
maintains trac), so thats why we know about them, because we move files
there and check bug reports.

the samples list we have is 

i think this is probably quicktime mov_text and not 708 stuff:

someone once ran all samples in our repo against ffmpeg and output a
big spreadsheet of working/nonworking . that info could be compiled to
output exactly whats in which sample. a script for doing that was
used once on our old incoming directory which turned into this:
which allows you to browse by codec, subtitle, container, etc.


More information about the ffmpeg-devel mailing list