rope

I implemented repacking and tried to recreate the image file from the extracted bitmaps. It works so far. But the generated gzip data is different: Original GZip Data Bytes: 00000000h: 1F 8B 08 00 00 00 00 00 00 00 95 91 31 0E 80 20 00000010h: 10 04 6F B4 31 B1 B3 F2 09 BE 83 DE 5F F9 68 3A 00000020h: 04 4F 1B D9 90 DC 26 DB CC 14 84 DB 74 5E 93 3D 00000030h: 49 B5 47 ED FE 16 5B 9C 57 BF AD DE D9 BC 2D 39 00000040h: 67 2B A5 18 98 0C 68 03 DA 80 36 A0 0D 68 03 DA 00000050h: 80 36 7F FE 99 9E BB 51 BC 19 CD A3 89 BC 1B F9 00000060h: 57 E4 6E 91 5D BA 19 07 BB 2B DA 72 03 69 D7 60 00000

This is the complete file format spec, as far as i understood it: Image File Format * ----------+----------------------------+----------- * Position | Field | Size * ----------+----------------------------+----------- * 0 | Header Record (F1 only) | 40 bytes * 0 | Header Record (F2 only) | 48 bytes * ----------+----------------------------+----------- * variable | GZH Record (Gzip Header) | 12 bytes * variable | GZH Record (Gzip Header) | 12 bytes * variable | GZH Record (Gzip Header) | 12 bytes * ... | ... | ... * ----------+------------------

Based on information in this thread, i have been able to reverse engineer the file format. I wrote a little tool for extracting all bmps: Download: http://avic411.com/i...ckage-imageimg/

I developed a little java program which is able to extract all bmp files from my image.img located in the firmware folder AVICZ110\APL\MENU\. Usage: java -jar xtractor.jar It generates a folder/file structure like this: OutputFolder | |- 2M | |- 007_2M_AV-001.bmp | |- 007_2M_AV-001.bmp | |- 007_2M_AV-002.bmp | |- ... |- 32k | |- 007_32K_AV-001.bmp | |- 007_32K_AV-002.bmp | |- 007_32K_AV-003.bmp | |- ... |- pOver | |- 2M | | |- 007_2M_OM-001.bmp | | |- 007_2M_OM-002.bmp | | |- 007_2M_OM-003.bmp | | |- ... | |- 32K | |- GZ T