Go to the source code of this file.
Defines | |
| #define | ERREXIT(msg) (fprintf(stderr, "%s\n", msg), exit(EXIT_FAILURE)) |
| #define | EXIT_FAILURE 1 |
| #define | EXIT_SUCCESS 0 |
| #define | JPEG_CJPEG_DJPEG /* to get the command-line config symbols */ |
| #define | M_APP0 0xE0 /* Application-specific marker, type N */ |
| #define | M_APP12 0xEC /* (we don't bother to list all 16 APPn's) */ |
| #define | M_COM 0xFE /* COMment */ |
| #define | M_EOI 0xD9 /* End Of Image (end of datastream) */ |
| #define | M_SOF0 0xC0 /* Start Of Frame N */ |
| #define | M_SOF1 0xC1 /* N indicates which compression process */ |
| #define | M_SOF10 0xCA |
| #define | M_SOF11 0xCB |
| #define | M_SOF13 0xCD |
| #define | M_SOF14 0xCE |
| #define | M_SOF15 0xCF |
| #define | M_SOF2 0xC2 /* Only SOF0-SOF2 are now in common use */ |
| #define | M_SOF3 0xC3 |
| #define | M_SOF5 0xC5 /* NB: codes C4 and CC are NOT SOF markers */ |
| #define | M_SOF6 0xC6 |
| #define | M_SOF7 0xC7 |
| #define | M_SOF9 0xC9 |
| #define | M_SOI 0xD8 /* Start Of Image (beginning of datastream) */ |
| #define | M_SOS 0xDA /* Start Of Scan (begins compressed data) */ |
| #define | NEXTBYTE() getc(infile) |
| #define | READ_BINARY "rb" |
Functions | |
| static int | first_marker (void) |
| static int | keymatch (char *arg, const char *keyword, int minchars) |
| int | main (int argc, char **argv) |
| static int | next_marker (void) |
| static void | process_COM (void) |
| static void | process_SOFn (int marker) |
| static int | read_1_byte (void) |
| static unsigned int | read_2_bytes (void) |
| static int | scan_JPEG_header (int verbose) |
| static void | skip_variable (void) |
| static void | usage (void) |
Variables | |
| static FILE * | infile |
| static const char * | progname |
Define Documentation
| #define ERREXIT | ( | msg | ) | (fprintf(stderr, "%s\n", msg), exit(EXIT_FAILURE)) |
Definition at line 68 of file rdjpgcom.c.
| #define EXIT_FAILURE 1 |
Definition at line 45 of file rdjpgcom.c.
| #define EXIT_SUCCESS 0 |
Definition at line 51 of file rdjpgcom.c.
| #define JPEG_CJPEG_DJPEG /* to get the command-line config symbols */ |
Definition at line 14 of file rdjpgcom.c.
| #define M_APP0 0xE0 /* Application-specific marker, type N */ |
Definition at line 122 of file rdjpgcom.c.
| #define M_APP12 0xEC /* (we don't bother to list all 16 APPn's) */ |
Definition at line 123 of file rdjpgcom.c.
| #define M_COM 0xFE /* COMment */ |
Definition at line 124 of file rdjpgcom.c.
| #define M_EOI 0xD9 /* End Of Image (end of datastream) */ |
Definition at line 120 of file rdjpgcom.c.
| #define M_SOF0 0xC0 /* Start Of Frame N */ |
Definition at line 106 of file rdjpgcom.c.
| #define M_SOF1 0xC1 /* N indicates which compression process */ |
Definition at line 107 of file rdjpgcom.c.
| #define M_SOF10 0xCA |
Definition at line 114 of file rdjpgcom.c.
| #define M_SOF11 0xCB |
Definition at line 115 of file rdjpgcom.c.
| #define M_SOF13 0xCD |
Definition at line 116 of file rdjpgcom.c.
| #define M_SOF14 0xCE |
Definition at line 117 of file rdjpgcom.c.
| #define M_SOF15 0xCF |
Definition at line 118 of file rdjpgcom.c.
| #define M_SOF2 0xC2 /* Only SOF0-SOF2 are now in common use */ |
Definition at line 108 of file rdjpgcom.c.
| #define M_SOF3 0xC3 |
Definition at line 109 of file rdjpgcom.c.
| #define M_SOF5 0xC5 /* NB: codes C4 and CC are NOT SOF markers */ |
Definition at line 110 of file rdjpgcom.c.
| #define M_SOF6 0xC6 |
Definition at line 111 of file rdjpgcom.c.
| #define M_SOF7 0xC7 |
Definition at line 112 of file rdjpgcom.c.
| #define M_SOF9 0xC9 |
Definition at line 113 of file rdjpgcom.c.
| #define M_SOI 0xD8 /* Start Of Image (beginning of datastream) */ |
Definition at line 119 of file rdjpgcom.c.
| #define M_SOS 0xDA /* Start Of Scan (begins compressed data) */ |
Definition at line 121 of file rdjpgcom.c.
Definition at line 64 of file rdjpgcom.c.
| #define READ_BINARY "rb" |
Definition at line 40 of file rdjpgcom.c.
Function Documentation
| static int first_marker | ( | void | ) | [static] |
Definition at line 173 of file rdjpgcom.c.
Definition at line 408 of file rdjpgcom.c.
Definition at line 437 of file rdjpgcom.c.
| static int next_marker | ( | void | ) | [static] |
Definition at line 138 of file rdjpgcom.c.
| static void process_COM | ( | void | ) | [static] |
Definition at line 221 of file rdjpgcom.c.
| static void process_SOFn | ( | int | marker | ) | [static] |
Definition at line 266 of file rdjpgcom.c.
| static int read_1_byte | ( | void | ) | [static] |
Definition at line 73 of file rdjpgcom.c.
| static unsigned int read_2_bytes | ( | void | ) | [static] |
Definition at line 86 of file rdjpgcom.c.
| static int scan_JPEG_header | ( | int | verbose | ) | [static] |
Definition at line 324 of file rdjpgcom.c.
| static void skip_variable | ( | void | ) | [static] |
Definition at line 195 of file rdjpgcom.c.
Definition at line 393 of file rdjpgcom.c.
Variable Documentation
FILE* infile [static] |
Definition at line 61 of file rdjpgcom.c.
Definition at line 389 of file rdjpgcom.c.