Hi,
As flac is lossless the number of frame and md5 code of the track
should be the same.
But I did the test you propose, I extract from the
flac the wav and I launch:
avconv -i file.wav -acodec alac file.m4a
and surprise ! I got an Apple lossless audio
What I was suspecting is true the conversion from flac to m4a using alac codec
create an acc 128 !!!
Conclusion the command below create an acc even using codec alac I think this a
bug.
avconv -i file.flac -acodec alac file.m4a
Many people using avconv or ffmpeg to create Apple lossless from flac got acc
128
My version is avconv
version 0.8.1-4:0.8.1-0ubuntu1, Copyright (c) 2000-2011 the Libav developers
________________________________
De : Claudio Freire <[email protected]>
À : "This list is about using libavcodec, libavformat, libavutil, libavdevice
and libavfilter." <[email protected]>
Envoyé le : Samedi 2 juin 2012 6h05
Objet : Re: [Libav-user] ALAC codec I am not sure it's really lossless
On Fri, Jun 1, 2012 at 3:58 PM, kurdy <[email protected]> wrote:
> From a flac file I did avconv -i f.flac -acodec alac f.m4a
> then back to flac avconv -i f.m4a -acodec flac f.flac
Better try some other reference format (pcm ideally), as flac may have
multiple representations of the same waveforms.
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