On 8/19/17, Nicolas George <geo...@nsup.org> wrote: > Le duodi 2 fructidor, an CCXXV, Paul B Mahol a écrit : >> So it is. So unless you tell what exactly you mean I can not help you. > > My bad. > >> testsrc(2) are useless for lipsync testing, when one needs to know >> exact time something is played in wrong time. > > Yes, testsrc alone is not enough. But you did not read carefully enough: > I mentioned testsrc2+sine. The sine source can optionally generate a > periodic beep, just like your proposal. I grant you, the duration and > period of the beep cannot be configured, but that would be easy to add. > And sine is bit-exact and faster.
And how would you show delay introduced with video source filter? testsrc(2) does not show anything resembling that. Look at those youtube videos: https://www.youtube.com/results?search_query=video+sync _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel