Videos from games using the "DivX for XBOX" (or GC) codec by doomed at 6:26 AM EDT on August 18, 2014

Greetings people of HCS!

The GC and Xbox(1) versions of Enter the Matrix (2003) use a special version of the DivX codec to store their live action cutscenes. (The PC version uses BINK and the PS2 version uses its native MPEG2 format).

This special version was made by Factor 5.

Related articles:

http://www.nintendoworldreport.com/news/7826/factor-5-divx-networks-release-sdk-for-gamecube

http://www.neowin.net/news/divx-for-the-xbox-sdk-announced

http://www.gamasutra.com/view/news/92434/Factor_5_and_Divx_Networks_Release_Divx_for_Gamecube.php

Now what's interesting is that the Xbox version is the only one that stored the videos in higher bitrate "HD" resolution (likely 720p) compared to the other versions of the game.

So I'd like to be able to play/convert those files. But as far as I know nobody has worked on reversing this format.

Here is one such file (it's Atari's logo) provided as a sample: Logo

And here is the beginning of the file in hex: Header

Thanks!

edit: Perhaps it would help to note that at the time that Factor 5 released the DivX for GC and Xbox SDKs, the "PC" version of the codec was DivX 5. So I would expect that this special version of DivX is based on DivX 5.

edited 11:43 AM EDT August 18, 2014

by kode54 at 10:30 PM EDT on August 19, 2014

And DivX 5 is just MPEG-4 ASP.

by doomed at 12:44 AM EDT on August 20, 2014

Some more info of a similar version used in some other game: http://forum.videohelp.com/threads/240342-Divx-puzzler

Really wish someone will come up with an idea how to decode this. :\

edited 5:48 AM EDT August 20, 2014

by hcs at 6:46 AM EDT on August 20, 2014

I wrote a parser to extract the audio from what I think is the gamecube version of this, if you want to look to that for inspiration: vid1_2ogg over here. You may just need to rebuild stream headers, as that's what I had to do with the audio (which was Vorbis).

Go to Page 0

Search this thread

Show all threads

Reply to this thread:

User Name		Tags: bold: [b]bold[/b] italics: [i]italics[/i] emphasis: [em]emphasis[/em] underline: [u]underline[/u] small: [small]small[/small] Link: [url=http://www.google.com]Link[/url] [img=https://www.hcs64.com/images/mm1.png]
Password
Subject
Message