MPEG4 Modifier - Modifies MPEG4-ASP AVIs freeware
Download: v1.4.4 (Binary) | v1.4.4 (Source)
Modifies MPEG-4 ASP videos (XviD, DivX) without re-encoding (change aspect ratio, edit userdata, remove or add packed bitstream, and change interlaced field order). It can also show information about the video such as the amount of I/P/S/B-VOPs used, whether or not QPel/GMC were used, etc. The video must be in an AVI container. More information can be found in this thread. There’s also a command line version sharing most of the same features.
NOTE: Aspect ratio modification works by changing a flag in the VOL headers, which is ignored by most decoders.
Changes:
1.4.4 (2007-Jan-13):
- Fixed a few small issues that prevented DivX subtitles from working.
- Added *.divx to the supported extension list in the file dialogs.
- A default file name is now provided when saving.
1.4.3 (2006-Nov-05):
- Doesn’t remove delay frames anymore, this caused synch problems with joined videos.
- FourCC and user data information are now shown in the “Video Info” text.
- It’s now possible to pack videos containing drop frames.
1.4.2 (2006-Sep-16):
- Fixed several problems with OpenDML reading/writing (writing bad OpenDML index entries, out of memory exception or unnecessary reading when loading, incomplete loading of files with damaged/missing index).
1.4.1 (2006-Aug-04):
- Fixed some problems with packing which also required corrections to the timestamp calculation code.
- If you try to load a non-MPEG4 video, the error message now displays which codec the file uses.
- Better default directories for load/save file dialogs.
1.4.0 (2006-Aug-03):
- AVI handling code completely rewritten, supports OpenDML and incomplete files (rebuilds the index including keyframe flags).
- Ability to add/readd packed bitstream.
- Optimized some parts, runs significantly faster.
- Added Cancel button on load/save progress window.
- Doesn’t freeze explorer while loading a file after dropping onto the source textbox.
- Updated code to take advantage of C# 2.0 features, and lots of cleanup.