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FFmpeg
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Independent JPEG Group's LLM idct. More...
Go to the source code of this file.
Macros | |
| #define | EIGHT_BIT_SAMPLES |
| #define | DCTSIZE 8 |
| #define | DCTSIZE2 64 |
| #define | GLOBAL |
| #define | RIGHT_SHIFT(x, n) ((x) >> (n)) |
| #define | CONST_BITS 13 |
| #define | PASS1_BITS 2 |
| #define | ONE ((int32_t) 1) |
| #define | CONST_SCALE (ONE << CONST_BITS) |
| #define | FIX(x) ((int32_t) ((x) * CONST_SCALE + 0.5)) |
| #define | DESCALE(x, n) RIGHT_SHIFT((x) + (ONE << ((n)-1)), n) |
| #define | MULTIPLY(var, const) ((var) * (const)) |
| #define | FIX_0_211164243 1730 |
| #define | FIX_0_275899380 2260 |
| #define | FIX_0_298631336 2446 |
| #define | FIX_0_390180644 3196 |
| #define | FIX_0_509795579 4176 |
| #define | FIX_0_541196100 4433 |
| #define | FIX_0_601344887 4926 |
| #define | FIX_0_765366865 6270 |
| #define | FIX_0_785694958 6436 |
| #define | FIX_0_899976223 7373 |
| #define | FIX_1_061594337 8697 |
| #define | FIX_1_111140466 9102 |
| #define | FIX_1_175875602 9633 |
| #define | FIX_1_306562965 10703 |
| #define | FIX_1_387039845 11363 |
| #define | FIX_1_451774981 11893 |
| #define | FIX_1_501321110 12299 |
| #define | FIX_1_662939225 13623 |
| #define | FIX_1_847759065 15137 |
| #define | FIX_1_961570560 16069 |
| #define | FIX_2_053119869 16819 |
| #define | FIX_2_172734803 17799 |
| #define | FIX_2_562915447 20995 |
| #define | FIX_3_072711026 25172 |
| #define | DCTSIZE 4 |
| #define | DCTSTRIDE 8 |
Typedefs | |
| typedef int16_t | DCTBLOCK[DCTSIZE2] |
Functions | |
| void | ff_j_rev_dct (DCTBLOCK data) |
| void | ff_j_rev_dct4 (DCTBLOCK data) |
| void | ff_j_rev_dct2 (DCTBLOCK data) |
| void | ff_j_rev_dct1 (DCTBLOCK data) |
Detailed Description
Independent JPEG Group's LLM idct.
Definition in file jrevdct.c.
Macro Definition Documentation
| #define CONST_BITS 13 |
Definition at line 79 of file jrevdct.c.
Referenced by ff_j_rev_dct(), and ff_j_rev_dct4().
| #define CONST_SCALE (ONE << CONST_BITS) |
| #define DCTSIZE 8 |
Definition at line 945 of file jrevdct.c.
Referenced by ff_j_rev_dct(), and ff_j_rev_dct4().
| #define DCTSTRIDE 8 |
Definition at line 946 of file jrevdct.c.
Referenced by ff_j_rev_dct2(), and ff_j_rev_dct4().
Definition at line 150 of file jrevdct.c.
Referenced by ff_j_rev_dct(), and ff_j_rev_dct4().
| #define FIX | ( | x | ) | ((int32_t) ((x) * CONST_SCALE + 0.5)) |
| #define FIX_0_211164243 1730 |
Definition at line 181 of file jrevdct.c.
Referenced by ff_j_rev_dct().
| #define FIX_0_275899380 2260 |
Definition at line 182 of file jrevdct.c.
Referenced by ff_j_rev_dct().
| #define FIX_0_298631336 2446 |
Definition at line 183 of file jrevdct.c.
Referenced by ff_j_rev_dct().
| #define FIX_0_390180644 3196 |
Definition at line 184 of file jrevdct.c.
Referenced by ff_j_rev_dct().
| #define FIX_0_509795579 4176 |
Definition at line 185 of file jrevdct.c.
Referenced by ff_j_rev_dct().
| #define FIX_0_541196100 4433 |
Definition at line 186 of file jrevdct.c.
Referenced by ff_j_rev_dct(), and ff_j_rev_dct4().
| #define FIX_0_601344887 4926 |
Definition at line 187 of file jrevdct.c.
Referenced by ff_j_rev_dct().
| #define FIX_0_765366865 6270 |
Definition at line 188 of file jrevdct.c.
Referenced by ff_j_rev_dct(), and ff_j_rev_dct4().
| #define FIX_0_785694958 6436 |
Definition at line 189 of file jrevdct.c.
Referenced by ff_j_rev_dct().
| #define FIX_0_899976223 7373 |
Definition at line 190 of file jrevdct.c.
Referenced by ff_j_rev_dct().
| #define FIX_1_061594337 8697 |
Definition at line 191 of file jrevdct.c.
Referenced by ff_j_rev_dct().
| #define FIX_1_111140466 9102 |
Definition at line 192 of file jrevdct.c.
Referenced by ff_j_rev_dct().
| #define FIX_1_175875602 9633 |
Definition at line 193 of file jrevdct.c.
Referenced by ff_j_rev_dct().
| #define FIX_1_306562965 10703 |
Definition at line 194 of file jrevdct.c.
Referenced by ff_j_rev_dct(), and ff_j_rev_dct4().
| #define FIX_1_387039845 11363 |
Definition at line 195 of file jrevdct.c.
Referenced by ff_j_rev_dct().
| #define FIX_1_451774981 11893 |
Definition at line 196 of file jrevdct.c.
Referenced by ff_j_rev_dct().
| #define FIX_1_501321110 12299 |
Definition at line 197 of file jrevdct.c.
Referenced by ff_j_rev_dct().
| #define FIX_1_662939225 13623 |
Definition at line 198 of file jrevdct.c.
Referenced by ff_j_rev_dct().
| #define FIX_1_847759065 15137 |
Definition at line 199 of file jrevdct.c.
Referenced by ff_j_rev_dct(), and ff_j_rev_dct4().
| #define FIX_1_961570560 16069 |
Definition at line 200 of file jrevdct.c.
Referenced by ff_j_rev_dct().
| #define FIX_2_053119869 16819 |
Definition at line 201 of file jrevdct.c.
Referenced by ff_j_rev_dct().
| #define FIX_2_172734803 17799 |
Definition at line 202 of file jrevdct.c.
Referenced by ff_j_rev_dct().
| #define FIX_2_562915447 20995 |
Definition at line 203 of file jrevdct.c.
Referenced by ff_j_rev_dct().
| #define FIX_3_072711026 25172 |
Definition at line 204 of file jrevdct.c.
Referenced by ff_j_rev_dct().
| #define MULTIPLY | ( | var, | |
| const | |||
| ) | ((var) * (const)) |
Definition at line 173 of file jrevdct.c.
Referenced by ff_j_rev_dct(), and ff_j_rev_dct4().
| #define ONE ((int32_t) 1) |
Definition at line 132 of file jrevdct.c.
Referenced by fill_rgb2yuv_table().
| #define PASS1_BITS 2 |
Definition at line 127 of file jrevdct.c.
Referenced by ff_j_rev_dct(), and ff_j_rev_dct4().
Typedef Documentation
Function Documentation
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