MPEG4 Modifier ♥ 007 ♥

This program modifies a MPEG4 video (XviD, DivX) without re-encoding (aspect ratio, userdata, packed bitstream removal, and interlaced field order). The video must be in an AVI container. There is also a command line version sharing most of the same features which even runs in other OSes with Mono.

IMPORTANT: As of version 1.4.0, requires the .NET Framework 2.0. Versions 1.3.4 and earlier require the .NET Framework 1.1 or newer.

NOTE: Aspect ratio modification works by changing a flag in the VOL headers, which is ignored by most decoders.


Changes:

1.4.4:
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:
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:
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:
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:
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.
1.3.4:
Re-added support for files with packed bitstream containing real N-VOPs (apparently the XviD 1.1 betas do this)
1.3.3:
Fixed bug when unpacking files with missing N-VOPs (caused by cutting/joining)
Removed support for files with packed bitstream containing real N-VOPs to simplify code
1.3.2:
New feature: Video Info now shows how many warp points are actually used (for example, DivX indicates 2 warp points in the VOL, but the 2nd one is never used)
Added detection for corrupt RIFF chunk sizes
Fixed byte order problem in AVI index on big endian systems (for command line unpacker running on OS X)
1.3.1:
Added percent in titlebar of progress window
Added 1.85:1 display aspect ratio
Fixed saving AVIs with no index
Fixed small cosmetic issues in main window
1.3.0:
New feature: option to automatically change user data when unpacking
Fixed bugs with 'rec ' list indexing
Added progress bar during load and save
A file can be loaded from the command line, or by dropping it on the AVI Source text box
Error checking is less strict (no more "No dummy N-VOP found for packed frame" and "Invalid VOL" errors)
Files are closed sooner, and output file is deleted if an error occurs during save
Other code improvements and clean-up
1.2.0:
New feature: modification of field order for interlaced videos
New feature: video information (i.e. whether or not QPel/GMC were used, stats for how many I/B/P/S/N-VOPs were used, list of VOP type and timestamp for each frame, etc.)
Packed bitstream removal can now tell the difference between dummy N-VOPs and real N-VOPs (though I'm told no encoder currently writes real N-VOPs in a packed bitstream)
1.1.0:
New feature: packed bitstream removal
New feature: userdata modification
Recognizes frames written in '00db' chunks
1.0.0 (Changes over the "rp.exe" preview):
Has a proper GUI
Warns if the AVI is OpenDML
Reads the frame width/height from the video (for DAR->PAR calculation)
Writes dwSuggestedBufferSize in the video stream header (it wrote 0 before)
Supports 'rec ' lists
Code has been restructured.

Keep Seeding ;)

Enjoy!

By,
the007zone!