A Script to Remux MKV Videos Into MP4 Videos

I’ve written a script that dumps the audio and video from an mkv file, encodes the audio into a two channel AAC stream, and remuxes the audio/video into a MP4 wrapper so it’s playable on the Xbox 360. The script is Linux-only, obviously, written in bash using mplayer, normalize-audio, mencoder, MP4Box, mkvinfo, and mkvextract as tools.

It works pretty well:
phil@phil:~/videos$ time reMuxToMP4 test.mkv
[x] reMuxToMP4 script, v0.5.2, written by Phil Dufault
[x] Contact him at: http://www.dufault.info
[x] Source filename: test.mkv
[x] Destination filename: test.mp4
[x] Video stream found, 624 x 320 @ 23.976 fps, using ffh264
[x] Audio stream found, 2 audio channels, using mad
[x] Muxed in mkv format, source file is 38MB
[x] Dumping the audio...success
[x] Normalizing the audio...success
[x] Encoding the audio to low-complexity AAC...success
[x] Extracting audio from MP4 container (silly neroAacEnc)...success
[x] Extracting the video from the mkv...success
[x] Changing the h264 video stream profile from 5.1 to 4.1...success
[x] Deleting the old video source...success
[x] Moving new video stream to proper filename...success
[x] Muxing video stream at 23.976 fps...success
[x] Muxing the audio stream in...success
[o] All done!

Here’s a link to the source:
remuxtomp4

EDIT: I’ve updated the source to use mp4creator.  Please let me know if this is working with your 360′s.

EDIT: v0.5.3r1 released, contains patches found in comments.

Tagged as: Encode, Linux, Ubuntu, Video