Breaking Eggs And Making Omelettes

Topics On Multimedia Technology and Reverse Engineering


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VP6* And Omelettes

January 28th, 2005 by Multimedia Mike

Slacked off in the posting for a little while there. But you will be comforted to know that I always have at least a half-dozen articles in development for this blog.

According to the aggregated site statistics, “vp62 codec” is, far and away, the top search string that drives people to this site. “vp61 codec” brings up a distant second. This tells me that people are actually interested in On2’s VP6 line of codecs even though I may not encounter much media in those formats. If you are interested in the codec format, RE efforts on the Java modules are proceeding slowly and tediously.

People actually subscribe to this blog via RSS. Fun to know.

This blog is also well on its way to hijacking key food concepts. Another search string driving traffic to the site is “making omelettes”.

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Free Software From The MPAA

January 28th, 2005 by Multimedia Mike

From the Internet Movie Database:

At the same time, [the MPAA] released free software that it said would help parents scan their computers to find file-swapping software and pirated films.

I am most curious about what this free software does. Unfortunately, I find no mention of such software over on mpaa.org.

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Posted in Multimedia PressWatch, Open Source Multimedia | Comments Off on Free Software From The MPAA

Codec Gold Mine; More On The gentree Perl Script

January 17th, 2005 by Multimedia Mike

I’m feeling good about these new MS multimedia libraries with debug symbols. At first I was a little disappointed to see that ‘only’ WMA8, WMA9 and WMV9 were covered by these libraries.

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Posted in Reverse Engineering, Windows Media | Comments Off on Codec Gold Mine; More On The gentree Perl Script

Seeing The Forest For The Call Trees

January 16th, 2005 by Multimedia Mike

Since Microsoft was kind enough to freely release certain of their multimedia libraries with extensive symbolic information, I thought I would go one step further and start extracting useful intelligence from the libraries in a methodical manner. To that end, I wrote a Perl script that analyzes the disassembly output of a “dumpbin.exe /disasm <file>” command (standard with the Microsoft development tools) and outputs a list of all the functions in the file as well as all the functions the function calls. The list is divided into functions that are not called within the code (these are suspected to be top-level functions) and functions that are referenced.

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Posted in Reverse Engineering, Windows Media | Comments Off on Seeing The Forest For The Call Trees

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