Convert 720p/ac3 mkv to 720p/aac iPad-compatible mp4/m4v on Mac OS X Snow Leopard

[tekman]

# Video is not transcoded, just demuxed/muxed

Comments

[loganb]

Only four command line tools?! I am dubious it could be that easy…

[tekman]

Pretty much. Turns out that the AC3 and h.264 tracks might have different identifiers, so you have to check to get the right TID first.

I threw together a shell script to automate the whole process. It's available as a public gist on github:

http://gist.github.com/502844

[tekman]

It took 4m13s to process a 46m mkv. Much better than re-encoding through Handbrake.

MP4Box for OS X

[anonymous]

Very useful article. Have been trying to repackage some MKV files into iPad-friendly formats.

Can't seem to locate the OS X executable for MP4Box at the URL you listed above. Has it been removed? Thanks.

Re: MP4Box for OS X

[anonymous]

Found a copy of MP4Box 0.4.6-DEV compiled as Max OS X universal binary.

Check the download links at:
http://penguintool.blogspot.com/

Direct download URL:
http://www.exomanic.com/joomla/index.php?option=com_weblinks&task=view&catid=15&id=20

Just use homebrew

[tekman]

# GPAC has mp4box:
brew install faac a52dec gpac mkvtoolnix

[m3f]

Damn... this script worked like a charm. Thanks for writing it!