When I encode an OGG file with Theora+Speex , my video length is longer than the audio playback. Anytips on this ?
On Thu, Apr 12, 2012 at 2:51 PM, Gagandeep Bawa <[email protected] > wrote: > Hi, > > These PTS and DTS used for sync between audio and video data while > encoding and presentation. Check below link for more details. > > *http://dranger.com/ffmpeg/tutorial05.html* > > Thanks, > Gagan > > On Thu, Apr 12, 2012 at 11:14 AM, ashika umanga > <[email protected]>wrote: > >> Greetings all, >> >> I am writing a wrapper class for video/audio encoding by following the >> "muxing.c". >> http://ffmpeg.org/doxygen/trunk/muxing_8c-source.html >> >> I see in the example that before writing frames to the file ,is checks >> whether the PTS value of audiostream is >> lesser than that of videostream. >> >> code snippet: >> >> if (!video_st || (video_st && audio_st && audio_pts < video_pts)) { >> write_audio_frame(oc, audio_st); >> } else { >> write_video_frame(oc, video_st); >> picture->pts++; >> } >> >> Can someone explain why this test is done? Whats the connection between >> PTS values ? >> >> >> >> _______________________________________________ >> Libav-user mailing list >> [email protected] >> http://ffmpeg.org/mailman/listinfo/libav-user >> >> > > > _______________________________________________ > Libav-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/libav-user > >
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