[FFmpeg-user] Copy Audio

Gyan ffmpeg at gyani.pro
Wed Dec 26 11:17:28 EET 2018

On Wed, Dec 19, 2018 at 10:28 AM Moritz Barsnick <barsnick at gmx.net> wrote:
>> 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? 

Most editing software don't read Matroska files. And if the container is 
MOV, non-Mac editors usually rely on antiquated 32-bit Quicktime to open 
the file, whereas they normally have native MP4 demuxers. And some 
editors don't skip the priming sample in AAC/MP3 streams causing a 
desync - in which case PCM is preferable.


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