MPEG4 Modifier Command Line Version (Updated 2007-Jan-13)

[Moitah]

Requires .NET Framework 2.0 or a recent version of Mono (with the latter it should run fine in Linux, OS X, etc).

Arguments: [switches] source_path [dest_path]
  dest_path is only optional with --info or --frame-list

Switches:
  --unpack             Remove packed bitstream.
  --pack               Add packed bitstream.
  --par <val>          Set the pixel aspect ratio, <val> is:
                         square - Square Pixel Shape
                         43pal - 4:3 PAL Pixel Shape
                         43ntsc - 4:3 NTSC Pixel Shape
                         169pal - 16:9 PAL Pixel Shape
                         169ntsc - 16:9 NTSC Pixel Shape
                         custom <width:height> - Custom Pixel Shape
  --field-order <val>  Change the interlaced field order, <val> is:
                         tff - Top Field First
                         bff - Bottom Field First
  --info               Display detailed information about the video.
  --frame-list <path>  Write a text file containing each frame's type,
                       timestamp, and size to the location specified.
  --always-write       Write a new file even if the video format isn't being
                       changed (useful for converting OpenDML AVIs < 2GB to
                       standard AVIs).

It has return values to aid scripting:

• 0 = Everything was successful.
• 1 = Some type of error (invalid arguments, couldn't open file, file was corrupt, etc).
• 2 = Aborted because output file was already in the desired format (e.g. --unpack was used on a file that didn't have packed bitstream).

Example usage: mono mmcl.exe --unpack /home/jdp/Desktop/test.avi /home/jdp/Desktop/test-new.avi


.bat file for batch unpacking in Windows. Paste this into Notepad, correct the path to mmcl.exe, and save it as a .bat file in the same folder as your AVI files. Open the folder in Explorer and double-click the .bat file. The unpacked AVIs will be written in a new folder (only the ones that needed to be unpacked).

@ECHO OFF
md unpack
FOR %%I IN (*.avi) DO "C:\Program Files\MPEG4 Modifier\mmcl.exe" --unpack "%%~fI" "%%~dpIunpack\%%~nxI"

Download: MPEG4 Modifier CL v1.4.4 (Binary and Source)

Update: It's now possible to run MPEG4 Modifier GUI version in Mono since Mono 1.2.3 was released.