FFmpeg: libavcodec/diracdsp.c File Reference

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diracdsp.c File Reference

#include "avcodec.h"
#include "diracdsp.h"
#include "libavcodec/x86/diracdsp_mmx.h"

Go to the source code of this file.

Macros

#define FILTER(src, stride)

#define PIXOP_BILINEAR(PFX, OP, WIDTH)

#define OP_PUT(dst, val) (dst) = (val)

#define OP_AVG(dst, val) (dst) = (((dst) + (val) + 1)>>1)

#define op_scale1(x) block[x] = av_clip_uint8( (block[x]*weight + (1<<(log2_denom-1))) >> log2_denom)

#define op_scale2(x) dst[x] = av_clip_uint8( (src[x]*weights + dst[x]*weightd + (1<<(log2_denom-1))) >> log2_denom)

#define DIRAC_WEIGHT(W)

#define ADD_OBMC(xblen)

#define PIXFUNC(PFX, WIDTH)

Functions

static void dirac_hpel_filter (uint8_t *dsth, uint8_t *dstv, uint8_t *dstc, const uint8_t *src, int stride, int width, int height)

static void put_signed_rect_clamped_c (uint8_t *dst, int dst_stride, const int16_t *src, int src_stride, int width, int height)

static void add_rect_clamped_c (uint8_t *dst, const uint16_t *src, int stride, const int16_t *idwt, int idwt_stride, int width, int height)

av_cold void ff_diracdsp_init (DiracDSPContext *c)

Macro Definition Documentation

#define FILTER ( src,

stride

)

Value:

((21*((src)[ 0*stride] + (src)[1*stride]) \

-7*((src)[-1*stride] + (src)[2*stride]) \

+3*((src)[-2*stride] + (src)[3*stride]) \

-1*((src)[-3*stride] + (src)[4*stride]) + 16) >> 5)

Definition at line 25 of file diracdsp.c.

Referenced by calc_combed_score(), dirac_hpel_filter(), filter_frame(), and h264_filter_mb_fast_internal().

#define PIXOP_BILINEAR ( PFX,

OP,

WIDTH

)

Value:

static void ff_ ## PFX ## _dirac_pixels ## WIDTH ## _bilinear_c(uint8_t *dst, const uint8_t *src[5], int stride, int h) \

{ \

int x; \

const uint8_t *s0 = src[0]; \

const uint8_t *s1 = src[1]; \

const uint8_t *s2 = src[2]; \

const uint8_t *s3 = src[3]; \

const uint8_t *w = src[4]; \

while (h--) { \

for (x = 0; x < WIDTH; x++) { \

OP(dst[x], (s0[x]*w[0] + s1[x]*w[1] + s2[x]*w[2] + s3[x]*w[3] + 8) >> 4); \

} \

dst += stride; \

s0 += stride; \

s1 += stride; \

s2 += stride; \

s3 += stride; \

} \

}

Definition at line 53 of file diracdsp.c.

#define OP_PUT ( dst,

val

) (dst) = (val)

Definition at line 76 of file diracdsp.c.

#define OP_AVG ( dst,

val

) (dst) = (((dst) + (val) + 1)>>1)

Definition at line 77 of file diracdsp.c.

Referenced by png_filter_row().

#define op_scale1 ( x ) block[x] = av_clip_uint8( (block[x]*weight + (1<<(log2_denom-1))) >> log2_denom)

Definition at line 86 of file diracdsp.c.

#define op_scale2 ( x ) dst[x] = av_clip_uint8( (src[x]*weights + dst[x]*weightd + (1<<(log2_denom-1))) >> log2_denom)

Definition at line 87 of file diracdsp.c.

#define DIRAC_WEIGHT ( W )

Value:

static void weight_dirac_pixels ## W ## _c(uint8_t *block, int stride, int log2_denom, \

int weight, int h) { \

int x; \

while (h--) { \

for (x = 0; x < W; x++) { \

op_scale1(x); \

op_scale1(x+1); \

} \

block += stride; \

} \

static void biweight_dirac_pixels ## W ## _c(uint8_t *dst, const uint8_t *src, int stride, int log2_denom, \

int weightd, int weights, int h) { \

int x; \

while (h--) { \

for (x = 0; x < W; x++) { \

op_scale2(x); \

op_scale2(x+1); \

} \

dst += stride; \

src += stride; \

} \

}

Definition at line 89 of file diracdsp.c.

#define ADD_OBMC ( xblen )

Value:

static void add_obmc ## xblen ## _c(uint16_t *dst, const uint8_t *src, int stride, \

const uint8_t *obmc_weight, int yblen) \

{ \

int x; \

while (yblen--) { \

for (x = 0; x < xblen; x += 2) { \

dst[x ] += src[x ] * obmc_weight[x ]; \

dst[x+1] += src[x+1] * obmc_weight[x+1]; \

} \

dst += stride; \

src += stride; \

obmc_weight += 32; \

} \

}

Definition at line 118 of file diracdsp.c.

#define PIXFUNC ( PFX,

WIDTH

)

Value:

c->PFX ## _dirac_pixels_tab[WIDTH>>4][0] = ff_ ## PFX ## _dirac_pixels ## WIDTH ## _c; \

c->PFX ## _dirac_pixels_tab[WIDTH>>4][1] = ff_ ## PFX ## _dirac_pixels ## WIDTH ## _l2_c; \

c->PFX ## _dirac_pixels_tab[WIDTH>>4][2] = ff_ ## PFX ## _dirac_pixels ## WIDTH ## _l4_c; \

c->PFX ## _dirac_pixels_tab[WIDTH>>4][3] = ff_ ## PFX ## _dirac_pixels ## WIDTH ## _bilinear_c

Definition at line 170 of file diracdsp.c.

Referenced by ff_diracdsp_init().

Function Documentation

static void dirac_hpel_filter ( uint8_t * dsth,

uint8_t * dstv,

uint8_t * dstc,

const uint8_t * src,

int stride,

int width,

int height

)

static

Definition at line 31 of file diracdsp.c.

Referenced by ff_diracdsp_init().

static void put_signed_rect_clamped_c ( uint8_t * dst,

int dst_stride,

const int16_t * src,

int src_stride,

int width,

int height

)

static

Definition at line 138 of file diracdsp.c.

Referenced by ff_diracdsp_init().

static void add_rect_clamped_c ( uint8_t * dst,

const uint16_t * src,

int stride,

const int16_t * idwt,

int idwt_stride,

int width,

int height

)

static

Definition at line 153 of file diracdsp.c.

Referenced by ff_diracdsp_init().

av_cold void ff_diracdsp_init ( DiracDSPContext * c )

Definition at line 176 of file diracdsp.c.

Referenced by dirac_decode_init().

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