libavcodec/rv40dsp.c File Reference

RV40 decoder motion compensation functions. More...

#include "avcodec.h"
#include "dsputil.h"
#include "rv34dsp.h"
#include "libavutil/avassert.h"
#include "libavutil/common.h"

Go to the source code of this file.

Defines

#define RV40_LOWPASS(OPNAME, OP)
#define RV40_MC(OPNAME, SIZE)
#define op_avg(a, b)   a = (((a)+cm[b]+1)>>1)
#define op_put(a, b)   a = cm[b]
#define RV40_CHROMA_MC(OPNAME, OP)
#define op_avg(a, b)   a = (((a)+((b)>>6)+1)>>1)
#define op_put(a, b)   a = ((b)>>6)
#define RV40_WEIGHT_FUNC(size)
#define CLIP_SYMM(a, b)   av_clip(a, -(b), b)

Functions

static av_always_inline void rv40_weak_loop_filter (uint8_t *src, const int step, const ptrdiff_t stride, const int filter_p1, const int filter_q1, const int alpha, const int beta, const int lim_p0q0, const int lim_q1, const int lim_p1)
 weaker deblocking very similar to the one described in 4.4.2 of JVT-A003r1
static void rv40_h_weak_loop_filter (uint8_t *src, const ptrdiff_t stride, const int filter_p1, const int filter_q1, const int alpha, const int beta, const int lim_p0q0, const int lim_q1, const int lim_p1)
static void rv40_v_weak_loop_filter (uint8_t *src, const ptrdiff_t stride, const int filter_p1, const int filter_q1, const int alpha, const int beta, const int lim_p0q0, const int lim_q1, const int lim_p1)
static av_always_inline void rv40_strong_loop_filter (uint8_t *src, const int step, const ptrdiff_t stride, const int alpha, const int lims, const int dmode, const int chroma)
static void rv40_h_strong_loop_filter (uint8_t *src, const ptrdiff_t stride, const int alpha, const int lims, const int dmode, const int chroma)
static void rv40_v_strong_loop_filter (uint8_t *src, const ptrdiff_t stride, const int alpha, const int lims, const int dmode, const int chroma)
static av_always_inline int rv40_loop_filter_strength (uint8_t *src, int step, ptrdiff_t stride, int beta, int beta2, int edge, int *p1, int *q1)
static int rv40_h_loop_filter_strength (uint8_t *src, ptrdiff_t stride, int beta, int beta2, int edge, int *p1, int *q1)
static int rv40_v_loop_filter_strength (uint8_t *src, ptrdiff_t stride, int beta, int beta2, int edge, int *p1, int *q1)
av_cold void ff_rv40dsp_init (RV34DSPContext *c, DSPContext *dsp)

Variables

static const int rv40_bias [4][4]
static const uint8_t rv40_dither_l [16]
 dither values for deblocking filter - left/top values
static const uint8_t rv40_dither_r [16]
 dither values for deblocking filter - right/bottom values

Detailed Description

RV40 decoder motion compensation functions.

Definition in file rv40dsp.c.

Define Documentation

#define CLIP_SYMM ( a,
b   )     av_clip(a, -(b), b)

Definition at line 327 of file rv40dsp.c.

Referenced by rv40_weak_loop_filter().

#define op_avg ( a,
b   )     a = (((a)+((b)>>6)+1)>>1)

Definition at line 276 of file rv40dsp.c.

#define op_avg ( a,
b   )     a = (((a)+cm[b]+1)>>1)

Definition at line 276 of file rv40dsp.c.

#define op_put ( a,
b   )     a = ((b)>>6)

Definition at line 277 of file rv40dsp.c.

#define op_put ( a,
b   )     a = cm[b]

Definition at line 277 of file rv40dsp.c.

#define RV40_CHROMA_MC ( OPNAME,
OP   ) 

Definition at line 201 of file rv40dsp.c.

#define RV40_LOWPASS ( OPNAME,
OP   ) 

Definition at line 33 of file rv40dsp.c.

#define RV40_MC ( OPNAME,
SIZE   ) 

Definition at line 106 of file rv40dsp.c.

#define RV40_WEIGHT_FUNC ( size   ) 

Value:

static void rv40_weight_func_rnd_ ## size (uint8_t *dst, uint8_t *src1, uint8_t *src2, int w1, int w2, ptrdiff_t stride)\
{\
    int i, j;\
\
    for (j = 0; j < size; j++) {\
        for (i = 0; i < size; i++)\
            dst[i] = (((w2 * src1[i]) >> 9) + ((w1 * src2[i]) >> 9) + 0x10) >> 5;\
        src1 += stride;\
        src2 += stride;\
        dst  += stride;\
    }\
}\
static void rv40_weight_func_nornd_ ## size (uint8_t *dst, uint8_t *src1, uint8_t *src2, int w1, int w2, ptrdiff_t stride)\
{\
    int i, j;\
\
    for (j = 0; j < size; j++) {\
        for (i = 0; i < size; i++)\
            dst[i] = (w2 * src1[i] + w1 * src2[i] + 0x10) >> 5;\
        src1 += stride;\
        src2 += stride;\
        dst  += stride;\
    }\
}

Definition at line 282 of file rv40dsp.c.

Function Documentation

av_cold void ff_rv40dsp_init ( RV34DSPContext *  c,
DSPContext *  dsp 
)

Definition at line 521 of file rv40dsp.c.

Referenced by ff_rv34_decode_init().

static int rv40_h_loop_filter_strength ( uint8_t *  src,
ptrdiff_t  stride,
int  beta,
int  beta2,
int  edge,
int *  p1,
int *  q1 
) [static]

Definition at line 507 of file rv40dsp.c.

Referenced by ff_rv40dsp_init().

static void rv40_h_strong_loop_filter ( uint8_t *  src,
const ptrdiff_t  stride,
const int  alpha,
const int  lims,
const int  dmode,
const int  chroma 
) [static]

Definition at line 457 of file rv40dsp.c.

Referenced by ff_rv40dsp_init().

static void rv40_h_weak_loop_filter ( uint8_t *  src,
const ptrdiff_t  stride,
const int  filter_p1,
const int  filter_q1,
const int  alpha,
const int  beta,
const int  lim_p0q0,
const int  lim_q1,
const int  lim_p1 
) [static]

Definition at line 379 of file rv40dsp.c.

Referenced by ff_rv40dsp_init().

static av_always_inline int rv40_loop_filter_strength ( uint8_t *  src,
int  step,
ptrdiff_t  stride,
int  beta,
int  beta2,
int  edge,
int *  p1,
int *  q1 
) [static]

Definition at line 471 of file rv40dsp.c.

Referenced by rv40_h_loop_filter_strength(), and rv40_v_loop_filter_strength().

static av_always_inline void rv40_strong_loop_filter ( uint8_t *  src,
const int  step,
const ptrdiff_t  stride,
const int  alpha,
const int  lims,
const int  dmode,
const int  chroma 
) [static]

Definition at line 399 of file rv40dsp.c.

Referenced by rv40_h_strong_loop_filter(), and rv40_v_strong_loop_filter().

static int rv40_v_loop_filter_strength ( uint8_t *  src,
ptrdiff_t  stride,
int  beta,
int  beta2,
int  edge,
int *  p1,
int *  q1 
) [static]

Definition at line 514 of file rv40dsp.c.

Referenced by ff_rv40dsp_init().

static void rv40_v_strong_loop_filter ( uint8_t *  src,
const ptrdiff_t  stride,
const int  alpha,
const int  lims,
const int  dmode,
const int  chroma 
) [static]

Definition at line 464 of file rv40dsp.c.

Referenced by ff_rv40dsp_init().

static void rv40_v_weak_loop_filter ( uint8_t *  src,
const ptrdiff_t  stride,
const int  filter_p1,
const int  filter_q1,
const int  alpha,
const int  beta,
const int  lim_p0q0,
const int  lim_q1,
const int  lim_p1 
) [static]

Definition at line 389 of file rv40dsp.c.

Referenced by ff_rv40dsp_init().

static av_always_inline void rv40_weak_loop_filter ( uint8_t *  src,
const int  step,
const ptrdiff_t  stride,
const int  filter_p1,
const int  filter_q1,
const int  alpha,
const int  beta,
const int  lim_p0q0,
const int  lim_q1,
const int  lim_p1 
) [static]

weaker deblocking very similar to the one described in 4.4.2 of JVT-A003r1

Definition at line 331 of file rv40dsp.c.

Referenced by rv40_h_weak_loop_filter(), and rv40_v_weak_loop_filter().

Variable Documentation

const int rv40_bias[4][4] [static]

Initial value:

 {
    {  0, 16, 32, 16 },
    { 32, 28, 32, 28 },
    {  0, 32, 16, 32 },
    { 32, 28, 32, 28 }
}

Definition at line 194 of file rv40dsp.c.

const uint8_t rv40_dither_l[16] [static]

Initial value:

 {
    0x40, 0x50, 0x20, 0x60, 0x30, 0x50, 0x40, 0x30,
    0x50, 0x40, 0x50, 0x30, 0x60, 0x20, 0x50, 0x40
}
dither values for deblocking filter - left/top values

Definition at line 314 of file rv40dsp.c.

Referenced by rv40_strong_loop_filter().

const uint8_t rv40_dither_r[16] [static]

Initial value:

 {
    0x40, 0x30, 0x60, 0x20, 0x50, 0x30, 0x30, 0x40,
    0x40, 0x40, 0x50, 0x30, 0x20, 0x60, 0x30, 0x40
}
dither values for deblocking filter - right/bottom values

Definition at line 322 of file rv40dsp.c.

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