Re: [FFmpeg-devel] [RFC] Implementation of closed caption support

2014-08-04 Thread Gisle Sælensminde
Den 04. aug. 2014 21:58, skrev Reimar Döffinger: *scratches head* I wonder now if you misunderstood or if you discarded the variant I pointed out due to effort/complexity? Or because I don't know all the parts of the ffmpeg code well enough. Since both you and others has suggested that this is

Re: [FFmpeg-devel] [RFC] Implementation of closed caption support

2014-08-04 Thread Gisle Sælensminde
Den 04. aug. 2014 21:11, skrev Reimar Döffinger: On Mon, Aug 04, 2014 at 08:04:39PM +0100, Kieran Kunhya wrote: And as far as I can tell if you want to remux but with separate subtitle stream that would even mean that you have to re-encode the video for no good reason. You can just swap out the

[FFmpeg-devel] [RFC] Implementation of closed caption support

2014-08-04 Thread Gisle Sælensminde
I'm trying to add support for closed captions in ffmpeg, namely cea608 and cea708. Unlike normal subtitles, these are embedded in the video frames themselves rather than a separate track or file. As a first step I try to write bitstreams filters for extraction and inserting closed captions into