Il giorno sab, 22/11/2008 alle 16.12 +0200, Khelben Blackstaff ha scritto: > > the only reliable length is the one of the wav files; for some reason > > mencoder doesn't seem to decode the whole dts stream > > I noticed something that makes the issue more weird. > > At first i thought that mplayer -dumpaudio produces the wrong stream, > but i ran dcadec on it and the stream is correct, so mplayer too doesn't > decode it correctly under some circumstances. > > To sum all the info in one: > > 1) mplayer dvd://1 -aid 137 -> decodes DTS fine (length 6078) > > 2) mplayer dvd://1 -aid 137 -identify -frames 0 -> shows 6078 length > which is correct. > > 3) mplayer dvd://1 -aid 137 -novideo -ao pcm -> decodes DTS fine > to a wav of 6078 length. > > 4) mencoder dvd://1 -aid 137 -oac copy -ovc (copy/h264/whatever) -> > produces a avi which has smaller length (5971) and shows in the screen > "Skipping Frame!" every 2-2.5 seconds. skipping frames shortens the overall duration (but it should skip video frames, so audio should be left intact... ) > > 5) mplayer dvd://1 -aid 137 -dumpaudio -> produces the correct stream > but if i run "mplayer -identify -frames 0 stream.dump" it shows the > wrong length of 5971. it's an unreliable method > > So the problem lies not only with mencoder but with mplayer too. > > I tried 3 DVDs with DTS audio so it isn't some fault of the DVD. > My prog versions are the following: > > libdca SVN version (also tried version 0.0.5 before that) > also tried -ac ffdca to use ffmpeg instead of libdca but same result. > mplayer svn as of yesterday (revision 27975) > > I am glad to provide any more info or test any patch. > > I am sorry for my long post and thank you for your time.
