[FFmpeg-user] Copy Audio

Andi andrech at gmail.com
Wed Dec 26 10:49:13 EET 2018

The camera manufacturers do this to allow audio postproduction.
It would be nice to support the pro's even if the consumer is at the
forefront of all current technology.

Best wishes,

Andrei Chirosca

On Wed, Dec 19, 2018 at 10:28 AM Moritz Barsnick <barsnick at gmx.net> wrote:
> On Wed, Dec 19, 2018 at 07:22:52 +0000, Chris wrote:
> > FWIW both my Sony and Canon camcorders put out PCM audio in .mp4
> > containers. ffmpeg is merely being asked to copy the existing audio.
> Without myself trying to take sides on this, one could argue:
>   ffmpeg chooses not to create "illegal" files[1]. It is friendly enough
>   to demux/decode those created by others though, allowing you to carry
>   the data over.
> Why do you need to create the same/similar format that Sony and Canon
> do? Do you want the resulting MP4 to be read by a particular software?
> Why does the audio need to be copied losslessly? Why are the MOV or
> Matroska containers not alternatives?
> Moritz
> [1] Agreed it can in some other cases.
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