MPEG4 Modifier allows you to modify MPEG4 videos (XviD, DivX) without re-encoding (change aspect ratio, edit userdata, remove or add packed bitstream, and change interlaced field order).
- Aspect ratio modification works by changing a flag in the VOL headers, which is ignored by most decoders.
Changes in MPEG4 Modifier 1.4.5
- Ability to export custom quantization matrix to .cqm file.
- Fixed window layout with high DPI settings.
- Supports loading on .NET 4.x runtime (not required; still 2.0 compatible).
MPEG4 Modifier 1.4.4
on 21 November 2009, reviewed by: conrad1on
This little gem saved me from the nightmare of non-square pixels.
If your video looks stretched vertically when you play it - even when you know it shouldn't - simply open it up in MPEG4 Modifier (it doesn't have to be a MPEG file - it works for AVIs too) and select 'Square Pixels' under aspect ratio.
MPEG4 Modifier 1.4.1
on 08 August 2006, reviewed by: ikke
Very nice program to get rid of packed bitstreams so the file is playable on your standalone divx player.
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.
Copy this code into your website if you want to link to MPEG4 Modifier page:
<a href="http://www.free-codecs.com/download/MPEG4_Modifier.htm">Download MPEG4 Modifier</a>