If you're rooted you can replace the bootanimation in system/media.
If not rooted you can use ADB to push the bootanimation.zip to data/local.
Android devices upon bootup will look in data/local first for the bootanimation.zip file,
if it's not there than it will go to system/media.
If you put it in data/local it leave the original bootanimation.zip alone, and you can always go back to it by deleting the file in data/local.
bootanimation.zip:
Folder with animated PNG's (eg. part0)
Description File (desc.txt)
[WIDE in pixel] [HIGH in pixel] [SPEED in frames per sec]
[PLAY] [COUNT] [HOLD] [FOLDER]
[SPEED] = 1 = 1 frame each second
[SPEED] = 10 = 10 frames each second
[SPEED] = 100 = 100 frames each second <- wont work because its too high... it seems as though its capped at ~ 30-40fps... i dont know how good your eyes are but there does seem to be a speed difference between 30fps and 40fps... ?
[PLAY] = p = anything other than that = black screen
[COUNT] = 0 = PLAY [FOLDER] CONTINUOUSLY
[COUNT] = 1 = PLAY [FOLDER] ONCE
[COUNT] = 10 = PLAY [FOLDER] 10 TIMES
[COUNT] = 100 = PLAY [FOLDER] 100 TIMES (i think there is a cap because when i set it to 100 it plays for about a minute then stops... cant imagine it executed the animation 100 times in that timeframe... ?)
[WAIT] = 0 = wait 0sec before playing the animation again
[WAIT] = 1 = wait 1sec before playing the animation again (i dont see a difference between 0 and 1)
[WAIT] = 10 = wait 10sec before playing the animation again
[WAIT] = 100 = wait 100 sec before playing the animation again
note: [WAIT] is contingent on having [COUNT] > 1
eg.
480 200 20
p 0 0 part0
