[Libav-user] Need help with transcoding to AAC example

Nicolas George george at nsup.org
Thu Mar 31 16:26:18 CEST 2016

Le duodi 12 germinal, an CCXXIV, Przemysław Sobala a écrit :
> - asetnsamples filter when I got to feed the encoder with specific frame
> number

If you need it at the output, better use av_buffersink_set_frame_size()

> - aresample filter to change audio sampling rate

You can set the requested sample rate for the buffersink too, using
av_opt_set_int_list(), see examples/filtering_audio.c.

> That looks great!
> But does using filters add any performance impact?

Yes, of course, but negligible compared to the actual work done.


  Nicolas George
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