| 518 | #define R3 R_FIX(0.5) |
| 519 | #define R_SHIFT 11 |
| 520 | static inline void idct4row(DCTELEM *row) |
| 521 | { |
| 522 | int c0, c1, c2, c3, a0, a1, a2, a3; |
| 523 | //const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP; |
| 524 | |
| 525 | a0 = row[0]; |
| 526 | a1 = row[1]; |
| 527 | a2 = row[2]; |
| 528 | a3 = row[3]; |
| 529 | c0 = (a0 + a2)*R3 + (1 << (R_SHIFT - 1)); |
| 530 | c2 = (a0 - a2)*R3 + (1 << (R_SHIFT - 1)); |
| 531 | c1 = a1 * R1 + a3 * R2; |
| 532 | c3 = a1 * R2 - a3 * R1; |
| 533 | row[0]= (c0 + c1) >> R_SHIFT; |
| 534 | row[1]= (c2 + c3) >> R_SHIFT; |
| 535 | row[2]= (c2 - c3) >> R_SHIFT; |
| 536 | row[3]= (c0 - c1) >> R_SHIFT; |
| 537 | } |
| 538 | |
| 539 | void ff_simple_idct84_add(uint8_t *dest, int line_size, DCTELEM *block) |
| 540 | { |
no outgoing calls
no test coverage detected