> I realize captions is an application-layer function, and intend to work with > the CCExtractor team. Do any other applications already have ISDB caption > support?
Based on a Google search, it looks like dvbviewer can decode them: http://www.dvbviewer.tv/forum/topic/41933-brazilian-terrestrial-isdb-tb-subtitles-closed-caption/ http://www.dvbviewer.com/en/index.php It's not open source, and it's not Linux, but at least it may give you something to compare against if you want to build the functionality yourself. > For DVB and ATSC there's quite a bit of code written by several people for > teletext and captions -- has anything at all been done for ISDB captions? Not to my knowledge. I've done a ton of work with CC decoding in VLC, but haven't poked around at the other formats. > It's used in nearly all of Central and South America, plus the Philippines > and of course Japan -- you would have thought someone has started on the > task? >From what I understand, most terrestrial TV in Japan is encrypted, so you're likely to not find many open source solutions which targeted at that market. Presumably there is less of that in Brazil (why else would Mauro be doing all that ISDB-T work if there was no way to watch the actual video?). > We're looking for a good solution for capturing television in Brazil, when > the signal is encrypted -- are there set-top boxes or tv capture cards that > handle the decryption so that the decoded signal is passed on with the > ISDB-Tb caption stream intact? This would be very unusual. Satellite captioning often has the same issues - the decoders only support overlaying the captions over the video and provide no means to access the underlying data. Devin -- Devin J. Heitmueller - Kernel Labs http://www.kernellabs.com -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
