simple_idct.c File Reference
Detailed Description
simpleidct in C.
Definition in file simple_idct.c.
#include "avcodec.h"
#include "dsputil.h"
#include "simple_idct.h"
Go to the source code of this file.
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Defines |
#define | BF(k) |
#define | C1 C_FIX(0.6532814824) |
#define | C1 C_FIX(0.6532814824) |
#define | C2 C_FIX(0.2705980501) |
#define | C2 C_FIX(0.2705980501) |
#define | C3 C_FIX(0.5) |
#define | C_FIX(x) ((int)((x) * 1.414213562 * (1 << CN_SHIFT) + 0.5)) |
#define | C_FIX(x) ((int)((x) * (1 << CN_SHIFT) + 0.5)) |
#define | C_SHIFT (4+1+12) |
#define | C_SHIFT (4+1+12) |
#define | CN_SHIFT 12 |
#define | CN_SHIFT 12 |
#define | COL_SHIFT 20 |
#define | MAC16(rt, ra, rb) rt += (ra) * (rb) |
#define | MUL16(rt, ra, rb) rt = (ra) * (rb) |
#define | R1 R_FIX(0.6532814824) |
#define | R2 R_FIX(0.2705980501) |
#define | R3 R_FIX(0.5) |
#define | R_FIX(x) ((int)((x) * 1.414213562 * (1 << RN_SHIFT) + 0.5)) |
#define | R_SHIFT 11 |
#define | RN_SHIFT 15 |
#define | ROW_SHIFT 11 |
#define | W1 22725 |
#define | W2 21407 |
#define | W3 19266 |
#define | W4 16383 |
#define | W5 12873 |
#define | W6 8867 |
#define | W7 4520 |
Functions |
static void | idct4col (uint8_t *dest, int line_size, const DCTELEM *col) |
static void | idct4col_add (uint8_t *dest, int line_size, const DCTELEM *col) |
static void | idct4row (DCTELEM *row) |
static void | idctRowCondDC (DCTELEM *row) |
static void | idctSparseCol (DCTELEM *col) |
static void | idctSparseColAdd (uint8_t *dest, int line_size, DCTELEM *col) |
static void | idctSparseColPut (uint8_t *dest, int line_size, DCTELEM *col) |
void | simple_idct (DCTELEM *block) |
void | simple_idct248_put (uint8_t *dest, int line_size, DCTELEM *block) |
void | simple_idct48_add (uint8_t *dest, int line_size, DCTELEM *block) |
void | simple_idct84_add (uint8_t *dest, int line_size, DCTELEM *block) |
void | simple_idct_add (uint8_t *dest, int line_size, DCTELEM *block) |
void | simple_idct_put (uint8_t *dest, int line_size, DCTELEM *block) |