[FFmpeg-cvslog] avfilter: Dont partially merge lists
Carl Eugen Hoyos
cehoyos at ag.or.at
Tue Aug 6 00:45:51 CEST 2013
Michael Niedermayer <michaelni <at> gmx.at> writes:
> > > avfilter: Dont partially merge lists
> >
> > This patch changes the output of the following command:
> > $ ffmpeg -i 5.1.ac3 -af aformat=channel_layouts=stereo out.wav
> > A user believes that this is a bug:
> > ffmpeg-user: "Preserving perceived loudness when downmixing
> > audio from 5.1 AC3 to stereo AAC"
>
> when downmixing to s16 how could you preserve the loudness
> without risking cliping ?
> mix 2 channels out[i] = in0[i] + in1[i]
> assume in is +-32767
I understand but why was this different before this commit?
Carl Eugen
More information about the ffmpeg-cvslog
mailing list