android booting image

Thank you for your quick response,

i searched google and as far as i understand customizing boot animations in Android is being made using desc.txt file.

BootAnimation.cpp file also includes following line in movie() method.

ZipEntryRO desc = zip.findEntryByName("desc.txt");

File must be like the following format and all data has a special meaning.

480 480 10
p 1 0 part0
s androidaudio.mp3
c 0 0 part1

By changing this file customizing boot animation seems easy.

but i searched file and there is no file named desc.txt in kernel or filesystem.


Similarly BootAnimation.cpp defines some other zip files which i searched and find no results too.

#define USER_BOOTANIMATION_FILE "/data/local/bootanimation.zip"
#define SYSTEM_BOOTANIMATION_FILE "/system/media/bootanimation.zip"
#define SYSTEM_ENCRYPTED_BOOTANIMATION_FILE "/system/media/bootanimation-encrypted.zip"

Do i need a desc.txt file to customize boot animations?

if yes what is the file drectory?

or should i make some changes is BootAnimation.cpp file to customize android boot animation?


Regards

Read the functions in BootAnimation.cpp, it tries to open USER_BOOTANIMATION_FILE, if not found, it tries to open SYSTEM_BOOTANIMATION_FILE,
The desc.txt is in that zip file. If no bootanimation.zip is found, it fall back to use the ANDROID log boot animation, see threadLoop function.