ithmb文件是苹果手机的缩略图集合,不知道它的格式头是什么,那位大神知道,求指导。千恩万谢。
解决方案 »
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#define TVHEIGHT 480#define G4_SIZE 794040 // Size of 4G iPod iThmb file
#define G4_TVSIZE (TVWIDTH*(TVHEIGHT/2)*2) // one frame in YUV 4:2:2 TV output
(2 frames need to be read)
#define G4_FSSIZE (176*220*2) // Full Screen picture in 16bit RGB 5:6:5 (needs byte-swap too!)
#define G4_PBSIZE (42*30*2) // Photo Browser picture in 16bit RGB 5:6:5
#define G4_SPSIZE (130*88*2) // Slideshow Preview picture in 16bit RGB 5:6:5
#define G4_TVOFFSET 0 // Offset of TV output in file
#define G4_FSOFFSET 691200 // Offset of Full Screen picture in file
#define G4_PBOFFSET 768640 // Offset of Photo Browser picture in file
#define G4_SPOFFSET 771160 // Offset of Slideshow Preview picture in file
//--------------------------
#define G5_SIZE 871780 // Size of 5G iPod iThmb file
#define G5_TVSIZE (TVWIDTH*(TVHEIGHT/2)*2) // one frame in YUV 4:2:2 TV output
(2 frames need to be read)
#define G5_FSSIZE (320*240*2) // Full Screen picture in 16bit RGB 5:6:5
#define G5_PBSIZE (50*41*2) // Photo Browser picture in 16bit RGB 5:6:5
#define G5_SPSIZE (130*88*2) // Slideshow Preview picture in 16bit RGB 5:6:5
#define G5_TVOFFSET 0 // Offset of TV output in file
#define G5_SPOFFSET 691200 // Offset of Slideshow Preview picture in file
#define G5_FSOFFSET 714080 // Offset of Full Screen picture in file
#define G5_PBOFFSET 867680 // Offset of Photo Browser picture in file