How do you unmux an mpeg file?

[MrSasquatch]

I bought the extension for quicktime but there's no sound and it says there's no sound if it's a muxed mpeg. I'm importing it from a Sony HDD Handycam if that helps. How do I unmux?

 

[ElDiabloConCaca]

http://www.versiontracker.com/php/search.php?mode=basic&action=search&str=demux&plt[]=macosx&x=0&y=0

Those two programs are kind of old -- you may also want to give ffmpegx a try, available with a search on that same site.

 

[billbaloney]

There are many ways to demux. Here's one method, assuming you've imported the file and saved it as an MPEG.

1. Download and install the freeware ffmpegX.

2. After installing the required components, click the "Tools" tab.

3. Click the "demux" tab.

4. Choose your imported MPEG, and demux.

 

[MrSasquatch]

Okay, well now there's about 15 files. How do I get the file so I can play it in quicktime so it'll have sound?

 

[koko256]

ffmpegX does not want (in the version I have) to demux files which are not mpg. You can demux other with the command line ffmpeg (for instance, unprotected .m4v).

The command lines for demuxing are:
-> to get the audio
ffmpeg -i input -vn -acodec copy output
-> to get the video
ffmpeg -i input -an -vcodec copy output
The extension for "output" is important: if you want you video embedded with an avi header, put ".avi"; if you want your aac audio readable on an iPod, put ".m4a"...