| 12-10-2002, 01:10 AM | #1 |
Guest | I need some info on the BLP JPEG format. How is the jpeg stored? I see the JFIF header id, but the data isn't in one piece. It's all over the place. How do I hex edit it, so it is a valid JPEG file that I can load into Paint Shop Pro? |
| 12-10-2002, 10:40 PM | #2 |
Guest | So, no one here knows? |
| 12-10-2002, 10:51 PM | #3 |
If just want to convert that, it would be better to use Image Extractor from DjBnJack. If you're interested on the spec coz you are programming on some language, reply here and i'll post something. |
| 12-13-2002, 09:15 PM | #4 |
Guest | i'm interested in the spec |
| 12-13-2002, 11:13 PM | #5 |
BLP Header: char[4]: file ID ("BLP1") DWORD: unknown DWORD: unknown DWORD: image width DWORD: image height DWORD: unknown DWORD: unknown DWORD: data offset (from the begining of the file) DWORD[15]: unknown DWORD: Jpg header size "h" (usually 0x00000270) byte[h]: Jpg header followed by 0 bytes until the begining of the jpeg data. address=data offset: raw jpeg data till the end of the file Just grab the Jpg header, merge with jpeg data and you got a JPG pic. Btw, there is another type of BLP "palleted", but I don't remember the specs. Anyway, almost 100% of the BLPs of W3 are JPGs-BLPs , justa a few are Palleted-BLPs. |