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intrax8dsp.c File Reference

IntraX8 frame subdecoder image manipulation routines. More...

#include "intrax8dsp.h"
#include "libavutil/common.h"

Go to the source code of this file.

Macros

#define area1   (0)
 
#define area2   (8)
 
#define area3   (8+8)
 
#define area4   (8+8+1)
 
#define area5   (8+8+1+8)
 
#define area6   (8+8+1+16)
 

Functions

static void x8_setup_spatial_compensation (uint8_t *src, uint8_t *dst, int linesize, int *range, int *psum, int edges)
 Collect statistics and prepare the edge pixels required by the other spatial compensation functions.
 
static void spatial_compensation_0 (uint8_t *src, uint8_t *dst, int linesize)
 
static void spatial_compensation_1 (uint8_t *src, uint8_t *dst, int linesize)
 
static void spatial_compensation_2 (uint8_t *src, uint8_t *dst, int linesize)
 
static void spatial_compensation_3 (uint8_t *src, uint8_t *dst, int linesize)
 
static void spatial_compensation_4 (uint8_t *src, uint8_t *dst, int linesize)
 
static void spatial_compensation_5 (uint8_t *src, uint8_t *dst, int linesize)
 
static void spatial_compensation_6 (uint8_t *src, uint8_t *dst, int linesize)
 
static void spatial_compensation_7 (uint8_t *src, uint8_t *dst, int linesize)
 
static void spatial_compensation_8 (uint8_t *src, uint8_t *dst, int linesize)
 
static void spatial_compensation_9 (uint8_t *src, uint8_t *dst, int linesize)
 
static void spatial_compensation_10 (uint8_t *src, uint8_t *dst, int linesize)
 
static void spatial_compensation_11 (uint8_t *src, uint8_t *dst, int linesize)
 
static void x8_loop_filter (uint8_t *ptr, const int a_stride, const int b_stride, int quant)
 
static void x8_h_loop_filter (uint8_t *src, int stride, int qscale)
 
static void x8_v_loop_filter (uint8_t *src, int stride, int qscale)
 
av_cold void ff_intrax8dsp_init (IntraX8DSPContext *dsp)
 

Variables

static const uint16_t zero_prediction_weights [64 *2]
 

Detailed Description

IntraX8 frame subdecoder image manipulation routines.

Definition in file intrax8dsp.c.

Macro Definition Documentation

#define area1   (0)

Definition at line 43 of file intrax8dsp.c.

Referenced by spatial_compensation_8(), and x8_setup_spatial_compensation().

#define area2   (8)

Definition at line 44 of file intrax8dsp.c.

Referenced by spatial_compensation_0(), spatial_compensation_10(), spatial_compensation_11(), spatial_compensation_5(), spatial_compensation_7(), spatial_compensation_8(), spatial_compensation_9(), and x8_setup_spatial_compensation().

#define area3   (8+8)

Definition at line 45 of file intrax8dsp.c.

Referenced by spatial_compensation_6(), spatial_compensation_7(), and x8_setup_spatial_compensation().

#define area4   (8+8+1)

Definition at line 46 of file intrax8dsp.c.

Referenced by spatial_compensation_0(), spatial_compensation_1(), spatial_compensation_10(), spatial_compensation_11(), spatial_compensation_2(), spatial_compensation_3(), spatial_compensation_4(), spatial_compensation_5(), and x8_setup_spatial_compensation().

#define area5   (8+8+1+8)

Definition at line 47 of file intrax8dsp.c.

Referenced by x8_setup_spatial_compensation().

#define area6   (8+8+1+16)

Definition at line 48 of file intrax8dsp.c.

Referenced by spatial_compensation_4(), and x8_setup_spatial_compensation().

Function Documentation

static void x8_setup_spatial_compensation ( uint8_t *  src,
uint8_t *  dst,
int  linesize,
int *  range,
int *  psum,
int  edges 
)
static

Collect statistics and prepare the edge pixels required by the other spatial compensation functions.

Parameters
srcpointer to the beginning of the processed block
dstpointer to emu_edge, edge pixels are stored the way other compensation routines do.
linesizebyte offset between 2 vertical pixels in the source image
rangepointer to the variable where the edge pixel range is to be stored (max-min values)
psumpointer to the variable where the edge pixel sum is to be stored
edgesInforms this routine that the block is on an image border, so it has to interpolate the missing edge pixels. and some of the edge pixels should be interpolated, the flag has the following meaning: 1 - mb_x==0 - first block in the row, interpolate area #1,#2,#3; 2 - mb_y==0 - first row, interpolate area #3,#4,#5,#6; note: 1|2 - mb_x==mb_y==0 - first block, use 0x80 value for all areas; 4 - mb_x>= (mb_width-1) last block in the row, interpolate area #5;

Definition at line 65 of file intrax8dsp.c.

Referenced by ff_intrax8dsp_init().

static void spatial_compensation_0 ( uint8_t *  src,
uint8_t *  dst,
int  linesize 
)
static

Definition at line 151 of file intrax8dsp.c.

Referenced by ff_intrax8dsp_init().

static void spatial_compensation_1 ( uint8_t *  src,
uint8_t *  dst,
int  linesize 
)
static

Definition at line 204 of file intrax8dsp.c.

Referenced by ff_intrax8dsp_init().

static void spatial_compensation_2 ( uint8_t *  src,
uint8_t *  dst,
int  linesize 
)
static

Definition at line 214 of file intrax8dsp.c.

Referenced by ff_intrax8dsp_init().

static void spatial_compensation_3 ( uint8_t *  src,
uint8_t *  dst,
int  linesize 
)
static

Definition at line 224 of file intrax8dsp.c.

Referenced by ff_intrax8dsp_init().

static void spatial_compensation_4 ( uint8_t *  src,
uint8_t *  dst,
int  linesize 
)
static

Definition at line 234 of file intrax8dsp.c.

Referenced by ff_intrax8dsp_init().

static void spatial_compensation_5 ( uint8_t *  src,
uint8_t *  dst,
int  linesize 
)
static

Definition at line 244 of file intrax8dsp.c.

Referenced by ff_intrax8dsp_init().

static void spatial_compensation_6 ( uint8_t *  src,
uint8_t *  dst,
int  linesize 
)
static

Definition at line 258 of file intrax8dsp.c.

Referenced by ff_intrax8dsp_init().

static void spatial_compensation_7 ( uint8_t *  src,
uint8_t *  dst,
int  linesize 
)
static

Definition at line 268 of file intrax8dsp.c.

Referenced by ff_intrax8dsp_init().

static void spatial_compensation_8 ( uint8_t *  src,
uint8_t *  dst,
int  linesize 
)
static

Definition at line 282 of file intrax8dsp.c.

Referenced by ff_intrax8dsp_init().

static void spatial_compensation_9 ( uint8_t *  src,
uint8_t *  dst,
int  linesize 
)
static

Definition at line 292 of file intrax8dsp.c.

Referenced by ff_intrax8dsp_init().

static void spatial_compensation_10 ( uint8_t *  src,
uint8_t *  dst,
int  linesize 
)
static

Definition at line 302 of file intrax8dsp.c.

Referenced by ff_intrax8dsp_init().

static void spatial_compensation_11 ( uint8_t *  src,
uint8_t *  dst,
int  linesize 
)
static

Definition at line 312 of file intrax8dsp.c.

Referenced by ff_intrax8dsp_init().

static void x8_loop_filter ( uint8_t *  ptr,
const int  a_stride,
const int  b_stride,
int  quant 
)
static

Definition at line 323 of file intrax8dsp.c.

Referenced by x8_h_loop_filter(), and x8_v_loop_filter().

static void x8_h_loop_filter ( uint8_t *  src,
int  stride,
int  qscale 
)
static

Definition at line 407 of file intrax8dsp.c.

Referenced by ff_intrax8dsp_init().

static void x8_v_loop_filter ( uint8_t *  src,
int  stride,
int  qscale 
)
static

Definition at line 411 of file intrax8dsp.c.

Referenced by ff_intrax8dsp_init().

av_cold void ff_intrax8dsp_init ( IntraX8DSPContext *  dsp)

Definition at line 415 of file intrax8dsp.c.

Referenced by ff_intrax8_common_init().

Variable Documentation

const uint16_t zero_prediction_weights[64 *2]
static
Initial value:
= {
640, 640, 669, 480, 708, 354, 748, 257, 792, 198, 760, 143, 808, 101, 772, 72,
480, 669, 537, 537, 598, 416, 661, 316, 719, 250, 707, 185, 768, 134, 745, 97,
354, 708, 416, 598, 488, 488, 564, 388, 634, 317, 642, 241, 716, 179, 706, 132,
257, 748, 316, 661, 388, 564, 469, 469, 543, 395, 571, 311, 655, 238, 660, 180,
198, 792, 250, 719, 317, 634, 395, 543, 469, 469, 507, 380, 597, 299, 616, 231,
161, 855, 206, 788, 266, 710, 340, 623, 411, 548, 455, 455, 548, 366, 576, 288,
122, 972, 159, 914, 211, 842, 276, 758, 341, 682, 389, 584, 483, 483, 520, 390,
110, 1172, 144, 1107, 193, 1028, 254, 932, 317, 846, 366, 731, 458, 611, 499, 499
}

Definition at line 140 of file intrax8dsp.c.

Referenced by spatial_compensation_0().

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