On Nov 16, 2011, at 1:56 AM, Carl Eugen Hoyos wrote: > Bruce Wheaton <bruce@...> writes: > >> Sorry, I can't find anywhere, but do ffplay and ffmpeg configure the audio >> codec context at all? > >> Obviously, they configure resampling etc., but do they tell the codec context >> to do anything different depending on layout? > > If you output to alsa, yes. > The audio encoders - esp (E)AC-3 - have to guess the layout if it is not > specified.
OK, thanks. I saw there was some guess layout stuff added, I'll check that out. FYI - the problem for me was in the AfterEffects generated movie. It seems that AE makes a movie with a full second of video frame packets before it starts putting any audio packets into the file. This was subverting my buffering code, which was working on the opposite assumption. Bruce _______________________________________________ Libav-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/libav-user
