Hello Aman, On Thu, May 17, 2018 at 8:04 PM, Aman Gupta <ffm...@tmm1.net> wrote: > From: Aman Gupta <a...@tmm1.net> > > Some filtered mpegts streams may erroneously include PMTs for programs > that are not advertised in the PAT. This confuses ffmpeg and most > players because multiple audio/video streams are created and it is > unclear which ones actually contain data.
I guess my big question would be, why is the ffmpeg TS demux interpreting some PIDs as containing PMT if they are not referenced by the PAT? I have to assume there is some heuristic in there which looks at arbitrary PID data and attempts to treat it as a PMT table (presumably in an attempt to play TS streams which are missing PAT). If that's the case, then I think *that's* what the patch should disable - assume the PAT/PMT are present and well-formed and don't play games trying to find a PMT assuming the PAT is absent/malformed. I can appreciate a player doing it's best to play some screwed up stream, but that sort of logic should not be the default. There are all sorts of strange proprietary data sent by broadcasters over PIDs and I wouldn't want those to get mis-detected as PMT when the spec says PIDs not explicitly in the PAT/PMT should be completely ignored. Devin -- Devin J. Heitmueller - Kernel Labs http://www.kernellabs.com _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
