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 > >
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