HELP!: How to hack registry of MPEG-4 defaults

[Melter]

Hi,
Anyone know what to do to fix the bitrate value for MS MPEG-4 V2 codec to 6000kbit/sec
and also make the keyframe every 1 seconds?

I am using the codec for YUY capture in Reelcap, but despite having saved the setting, everytime when I look at the "configuration" of the MPEG-4 codec, the default settings return.

I would like to hack this defaults value (key frame every 8 secs, datarate 3000kbit/sec)
into my favourite value.

Anywayone know how to do this? Hacking the registry maybe, or hacking the DLL itself?

[Sciascia]

You will have to hack the DLL itself. here is what I did to get it to work


hacked M$-MPEG 4 V3 codecs

encoder: MPG4C32.dll Version 4.1.00.3920
decoder: mpg4ds32.ax Version 4.1.00.3917

- support for MPEG4 V3 encoding and decoding has been enabled


you can make your own default settings for encoding
by changing these hex-values within MPG4C32.dll in your hex editor:

bitrate: 0AC6: 97 (default)
x'70 B7' -> 6000
x'70 A7' -> 3000
x'70 97' -> 1500
x'70 87' -> 750
x'70 77' -> 375
----------------
x'40 9F' -> 2000
x'40 8F' -> 1000
x'40 7F' -> 500
x'40 6F' -> 250

crispness: 1EA8: 4B (default) (value doesn't really change output)
keyframes: 1EAF: 01 (default) (1 keyframe per sec. won't give bad frames at only 1% file increase)

I forgot where I got this from, but it worked, it took awhile since I am not very educated in code, but it does work well.