FFmpeg
Macros | Functions
binkdsp.c File Reference

Bink DSP routines. More...

#include "config.h"
#include "libavutil/attributes.h"
#include "binkdsp.h"

Go to the source code of this file.

Macros

#define A1   2896 /* (1/sqrt(2))<<12 */
 
#define A2   2217
 
#define A3   3784
 
#define A4   -5352
 
#define MUL(X, Y)   ((int)((unsigned)(X) * (Y)) >> 11)
 
#define IDCT_TRANSFORM(dest, s0, s1, s2, s3, s4, s5, s6, s7, d0, d1, d2, d3, d4, d5, d6, d7, munge, src)
 
#define MUNGE_NONE(x)   (x)
 
#define IDCT_COL(dest, src)   IDCT_TRANSFORM(dest,0,8,16,24,32,40,48,56,0,8,16,24,32,40,48,56,MUNGE_NONE,src)
 
#define MUNGE_ROW(x)   (((x) + 0x7F)>>8)
 
#define IDCT_ROW(dest, src)   IDCT_TRANSFORM(dest,0,1,2,3,4,5,6,7,0,1,2,3,4,5,6,7,MUNGE_ROW,src)
 

Functions

static void bink_idct_col (int *dest, const int32_t *src)
 
static void bink_idct_c (int32_t *block)
 
static void bink_idct_add_c (uint8_t *dest, int linesize, int32_t *block)
 
static void bink_idct_put_c (uint8_t *dest, int linesize, int32_t *block)
 
static void scale_block_c (const uint8_t src[64], uint8_t *dst, int linesize)
 
static void add_pixels8_c (uint8_t *av_restrict pixels, int16_t *block, int line_size)
 
av_cold void ff_binkdsp_init (BinkDSPContext *c)
 

Detailed Description

Bink DSP routines.

Definition in file binkdsp.c.

Macro Definition Documentation

#define A1   2896 /* (1/sqrt(2))<<12 */
#define A2   2217
#define A3   3784

Definition at line 33 of file binkdsp.c.

#define A4   -5352

Definition at line 34 of file binkdsp.c.

#define MUL (   X,
  Y 
)    ((int)((unsigned)(X) * (Y)) >> 11)

Definition at line 36 of file binkdsp.c.

Referenced by idctRowCondDC().

#define IDCT_TRANSFORM (   dest,
  s0,
  s1,
  s2,
  s3,
  s4,
  s5,
  s6,
  s7,
  d0,
  d1,
  d2,
  d3,
  d4,
  d5,
  d6,
  d7,
  munge,
  src 
)
Value:
{\
const int a0 = (src)[s0] + (src)[s4]; \
const int a1 = (src)[s0] - (src)[s4]; \
const int a2 = (src)[s2] + (src)[s6]; \
const int a3 = MUL(A1, (src)[s2] - (src)[s6]); \
const int a4 = (src)[s5] + (src)[s3]; \
const int a5 = (src)[s5] - (src)[s3]; \
const int a6 = (src)[s1] + (src)[s7]; \
const int a7 = (src)[s1] - (src)[s7]; \
const int b0 = a4 + a6; \
const int b1 = MUL(A3, a5 + a7); \
const int b2 = MUL(A4, a5) - b0 + b1; \
const int b3 = MUL(A1, a6 - a4) - b2; \
const int b4 = MUL(A2, a7) + b3 - b1; \
(dest)[d0] = munge(a0+a2 +b0); \
(dest)[d1] = munge(a1+a3-a2+b2); \
(dest)[d2] = munge(a1-a3+a2+b3); \
(dest)[d3] = munge(a0-a2 -b4); \
(dest)[d4] = munge(a0-a2 +b4); \
(dest)[d5] = munge(a1-a3+a2-b3); \
(dest)[d6] = munge(a1+a3-a2-b2); \
(dest)[d7] = munge(a0+a2 -b0); \
}
#define A1
Definition: binkdsp.c:31
#define a0
Definition: regdef.h:46
#define A3
Definition: binkdsp.c:33
#define a1
Definition: regdef.h:47
#define src
Definition: vp8dsp.c:254
#define a3
Definition: regdef.h:49
#define A4
Definition: binkdsp.c:34
#define A2
Definition: binkdsp.c:32
#define s2
Definition: regdef.h:39
#define s0
Definition: regdef.h:37
#define s5
Definition: regdef.h:42
#define a2
Definition: regdef.h:48
#define s4
Definition: regdef.h:41
#define s3
Definition: regdef.h:40
#define a5
Definition: regdef.h:51
#define MUL(X, Y)
Definition: binkdsp.c:36
#define s1
Definition: regdef.h:38
#define a4
Definition: regdef.h:50
#define s6
Definition: regdef.h:43

Definition at line 38 of file binkdsp.c.

#define MUNGE_NONE (   x)    (x)

Definition at line 63 of file binkdsp.c.

#define IDCT_COL (   dest,
  src 
)    IDCT_TRANSFORM(dest,0,8,16,24,32,40,48,56,0,8,16,24,32,40,48,56,MUNGE_NONE,src)

Definition at line 64 of file binkdsp.c.

Referenced by bink_idct_col().

#define MUNGE_ROW (   x)    (((x) + 0x7F)>>8)

Definition at line 66 of file binkdsp.c.

#define IDCT_ROW (   dest,
  src 
)    IDCT_TRANSFORM(dest,0,1,2,3,4,5,6,7,0,1,2,3,4,5,6,7,MUNGE_ROW,src)

Definition at line 67 of file binkdsp.c.

Referenced by bink_idct_c(), and bink_idct_put_c().

Function Documentation

static void bink_idct_col ( int dest,
const int32_t src 
)
inlinestatic

Definition at line 69 of file binkdsp.c.

Referenced by bink_idct_c(), and bink_idct_put_c().

static void bink_idct_c ( int32_t block)
static

Definition at line 85 of file binkdsp.c.

Referenced by bink_idct_add_c().

static void bink_idct_add_c ( uint8_t dest,
int  linesize,
int32_t block 
)
static

Definition at line 97 of file binkdsp.c.

Referenced by ff_binkdsp_init().

static void bink_idct_put_c ( uint8_t dest,
int  linesize,
int32_t block 
)
static

Definition at line 107 of file binkdsp.c.

Referenced by ff_binkdsp_init().

static void scale_block_c ( const uint8_t  src[64],
uint8_t dst,
int  linesize 
)
static

Definition at line 118 of file binkdsp.c.

Referenced by ff_binkdsp_init().

static void add_pixels8_c ( uint8_t *av_restrict  pixels,
int16_t *  block,
int  line_size 
)
static

Definition at line 134 of file binkdsp.c.

Referenced by ff_binkdsp_init().

av_cold void ff_binkdsp_init ( BinkDSPContext c)

Definition at line 153 of file binkdsp.c.

Referenced by decode_init().