[MEncoder-users] ATSC closed captioning

[Reimar Döffinger]

On Sat, Nov 27, 2010 at 07:36:27PM -0800, David Liontooth wrote:
> On 11/27/2010 12:59 PM, Reimar Döffinger wrote:
> >On Sat, Nov 27, 2010 at 12:25:46PM -0800, Scott W. Larson wrote:
> >>On Sat, 2010-11-27 at 20:04 +0100, Reimar Döffinger wrote:
> >>>-subcc now takes a number 1 - 4 to select which one you want.
> >>>No selecting at runtime yet, sorry.
> >>Ok, that's enough for testing.
> >>
> >>I think the
> >>
> >>	if (channel != (selected_channel()&  1))
> >>		return;
> >>
> >>lines in cc_decode_EIA608() aren't right. If I set subcc to 1, the
> >>function does get called (the channel test in subcc_process_eia708()
> >>passes and calls it) but the channel tests in cc_decode_EIA608() fail so
> >>nothing is displayed. If I remove those tests, I get captions.
> >1) It works fine with the sample on mphq: sample_atsc_subs.mpeg,
> >    so a sample would be welcome.
> >2) Since channel can only be 0 or 1, -subcc 2 should at least
> >    show something in that case (well, there is one case in which
> >    it is possible nothing will be shown, but it seems unlikely).
> Great to see progress on this!  I'd be happy to contribute a sample;
> what's the procedure?

Capture it e.g. with -dumpstream or the capture feature that can be
enabled at runtime, the upload it to upload.mplayerhq.hu/MPlayer/incoming
(I hope that's the right path, and I also hope there's still some space
free when you try).