Convert sparse Android data image (.dat) into filesystem ext4 image (.img)
This is a C++ equivalent of the original sdat2img tool, which was originally written in Python by xpirt, luxi78, and howellzhu.
This project uses libbrotli to enable inline brotli decompression. Please ensure that libbrotli-dev is installed on your system to build the project (Recommended).
Quite straightforward as it uses CMake.
./sdat2img <transfer_list> <system_new_file> [system_img]
<transfer_list>= input, system.transfer.list from rom zip<system_new_file>= input, system.new.dat from rom zip[system_img]= output ext4 raw image file
Or for lazy people:
./sdat2img <directory/to/extracted> <partition_name> [out_filename.img]
<directory/to/extracted>= if you extract ROM zip to a folder, point to the directory<partition_name>= Like system, vendor, etc...[out_filename.img]= Optional output path of ext4 RAW image
The program guesses the file names from the supplied directory and acts same as the first usage.
This is a simple example on a Linux system:
~$ ./sdat2img vendor.transfer.list vendor.new.dat vendor.img
- OR
~$ ./sdat2img LineageExtracted/ system
Where LineageExtracted/ contains system.new.dat(.br) system.transfer.list and it would output to LineageExtracted/system.img (as inferred)
- Python: 150 lines
- C++: 530 lines
C++ (Around x3.5 faster):
real 0m1.278s
user 0m0.086s
sys 0m1.102s
Python:
real 0m4.366s
user 0m0.871s
sys 0m2.336s
