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Any idea what format is this?

Posted: Wed Feb 04, 2015 3:19 pm
by supercolin
OFFSET:
0 - 2: RAW
3 - 8: unknown
9 - C: file size
D - 0x14: unknown

Start from offset 0x15, it looks like a JPEG file. If remove the first 0x14 bytes, and be opened as JPEG file, however, suppose it should PNG file, but it lost alpha chanel.

Re: Any idea what format is this?

Posted: Wed Feb 04, 2015 3:21 pm
by supercolin
7z file part 2.
Rename and unzip to get the original file and header-removed file.
supercolin wrote:OFFSET:
0 - 2: RAW
3 - 8: unknown
9 - C: file size
D - 0x14: unknown

Start from offset 0x15, it looks like a JPEG file. If remove the first 0x14 bytes, and be opened as JPEG file, however, suppose it should PNG file, but it lost alpha chanel.

Re: Any idea what format is this?

Posted: Thu Feb 05, 2015 9:00 am
by supercolin
OK there are some updates, I know most part of the header structure and how to combine the image..

OFFSET:
0 - 2: RAW
3 - 8: unknown
9 - C: total size of embedded pictures.
D - 0x10: size of picture w/ RGB channel, JPG format.
0x11 - 0x13: size of picture of alpha channel, 8bit, JPEG format.

Combine the RGB with A, you got the PNG.


supercolin wrote:7z file part 2.
Rename and unzip to get the original file and header-removed file.
supercolin wrote:OFFSET:
0 - 2: RAW
3 - 8: unknown
9 - C: file size
D - 0x14: unknown

Start from offset 0x15, it looks like a JPEG file. If remove the first 0x14 bytes, and be opened as JPEG file, however, suppose it should PNG file, but it lost alpha chanel.

Re: Any idea what format is this?

Posted: Sat Feb 07, 2015 10:27 pm
by Mr.Mouse
That's all very interesting, but what game is this ?