2019-03-05 21:57 GMT+01:00, v...@mailbox.org <v...@mailbox.org>:
In my open source project voukoder I am using libav/ffmpeg (branch 4.0) for quite some time now. Now I switched to master and I have a strange effect where I am not sure where its coming from. Whenever I user FLTP as sample format and mux it with whatever codec and muxer (i.e. x264/aac => mp4) the audio is pretty much distorted. It also seems to be affected by the video time base. With 1/120 it is pitched up alot and with 1/60 it is quite normal, but distorted. With S16 it works fine. With branch 4.0 everything is okay.
Are you certain that the number of samples per packet of audio is the same between input and output? If you are trying to put 1536 samples per packet to 1024 then that will distort audio for sure. Kind regards, Strahinja
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