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intrax8: K&R formatting cosmetics

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pull/206/head
Vittorio Giovara 9 years ago
parent 6f5ff559db
commit 2ade1cdafb
5 changed files with 1792 additions and 1653 deletions
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  1. 1020
      libavcodec/intrax8.c
  2. 28
      libavcodec/intrax8.h
  3. 600
      libavcodec/intrax8dsp.c
  4. 4
      libavcodec/intrax8dsp.h
  5. 1793
      libavcodec/intrax8huf.h

1020
libavcodec/intrax8.c
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File diff suppressed because it is too large Load Diff

28
libavcodec/intrax8.h
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@ -24,25 +24,29 @@
#include "intrax8dsp.h"
typedef struct IntraX8Context {
VLC * j_ac_vlc[4];//they point to the static j_mb_vlc
VLC * j_orient_vlc;
VLC * j_dc_vlc[3];
VLC *j_ac_vlc[4]; // they point to the static j_mb_vlc
VLC *j_orient_vlc;
VLC *j_dc_vlc[3];
int use_quant_matrix;
//set by ff_intrax8_common_init
uint8_t * prediction_table;//2*(mb_w*2)
// set by ff_intrax8_common_init
uint8_t *prediction_table; // 2 * (mb_w * 2)
ScanTable scantable[3];
//set by the caller codec
MpegEncContext * s;
// set by the caller codec
MpegEncContext *s;
IntraX8DSPContext dsp;
int quant;
int dquant;
int qsum;
//calculated per frame
// calculated per frame
int quant_dc_chroma;
int divide_quant_dc_luma;
int divide_quant_dc_chroma;
//changed per block
// changed per block
int edges;
int flat_dc;
int predicted_dc;
@ -52,8 +56,8 @@ typedef struct IntraX8Context {
int est_run;
} IntraX8Context;
void ff_intrax8_common_init(IntraX8Context * w, MpegEncContext * const s);
void ff_intrax8_common_end(IntraX8Context * w);
int ff_intrax8_decode_picture(IntraX8Context * w, int quant, int halfpq);
void ff_intrax8_common_init(IntraX8Context *w, MpegEncContext *const s);
void ff_intrax8_common_end(IntraX8Context *w);
int ff_intrax8_decode_picture(IntraX8Context *w, int quant, int halfpq);
#endif /* AVCODEC_INTRAX8_H */

600
libavcodec/intrax8dsp.c
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@ -17,7 +17,7 @@
*/
/**
* @file
* @file
*@brief IntraX8 frame subdecoder image manipulation routines
*/
@ -25,27 +25,27 @@
#include "libavutil/common.h"
/*
area positions, #3 is 1 pixel only, other are 8 pixels
|66666666|
3|44444444|55555555|
- -+--------+--------+
1 2|XXXXXXXX|
1 2|XXXXXXXX|
1 2|XXXXXXXX|
1 2|XXXXXXXX|
1 2|XXXXXXXX|
1 2|XXXXXXXX|
1 2|XXXXXXXX|
1 2|XXXXXXXX|
^-start
*/
* area positions, #3 is 1 pixel only, other are 8 pixels
* |66666666|
* 3|44444444|55555555|
* - -+--------+--------+
* 1 2|XXXXXXXX|
* 1 2|XXXXXXXX|
* 1 2|XXXXXXXX|
* 1 2|XXXXXXXX|
* 1 2|XXXXXXXX|
* 1 2|XXXXXXXX|
* 1 2|XXXXXXXX|
* 1 2|XXXXXXXX|
* ^-start
*/
#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)
#define area3 (8 + 8)
#define area4 (8 + 8 + 1)
#define area5 (8 + 8 + 1 + 8)
#define area6 (8 + 8 + 1 + 16)
/**
Collect statistics and prepare the edge pixels required by the other spatial compensation functions.
@ -61,372 +61,404 @@ area positions, #3 is 1 pixel only, other are 8 pixels
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;
*/
static void x8_setup_spatial_compensation(uint8_t *src, uint8_t *dst, int linesize,
int * range, int * psum, int edges){
uint8_t * ptr;
-*/
static void x8_setup_spatial_compensation(uint8_t *src, uint8_t *dst,
int linesize, int *range, int *psum,
int edges)
{
uint8_t *ptr;
int sum;
int i;
int min_pix,max_pix;
int min_pix, max_pix;
uint8_t c;
if((edges&3)==3){
*psum=0x80*(8+1+8+2);
*range=0;
memset(dst,0x80,16+1+16+8);
//this triggers flat_dc for sure.
//flat_dc avoids all (other) prediction modes, but requires dc_level decoding.
if ((edges & 3) == 3) {
*psum = 0x80 * (8 + 1 + 8 + 2);
*range = 0;
memset(dst, 0x80, 16 + 1 + 16 + 8);
/* this triggers flat_dc for sure. flat_dc avoids all (other)
* prediction modes, but requires dc_level decoding. */
return;
}
min_pix=256;
max_pix=-1;
min_pix = 256;
max_pix = -1;
sum=0;
sum = 0;
if(!(edges&1)){//(mb_x!=0)//there is previous block on this row
ptr=src-1;//left column, area 2
for(i=7;i>=0;i--){
c=*(ptr-1);//area1, same mb as area2, no need to check
dst[area1+i]=c;
c=*(ptr);
if (!(edges & 1)) { // (mb_x != 0) // there is previous block on this row
ptr = src - 1; // left column, area 2
for (i = 7; i >= 0; i--) {
c = *(ptr - 1); // area1, same mb as area2, no need to check
dst[area1 + i] = c;
c = *(ptr);
sum+=c;
min_pix=FFMIN(min_pix,c);
max_pix=FFMAX(max_pix,c);
dst[area2+i]=c;
sum += c;
min_pix = FFMIN(min_pix, c);
max_pix = FFMAX(max_pix, c);
dst[area2 + i] = c;
ptr+=linesize;
ptr += linesize;
}
}
if(!(edges&2)){ //(mb_y!=0)//there is row above
ptr=src-linesize;//top line
for(i=0;i<8;i++){
c=*(ptr+i);
sum+=c;
min_pix=FFMIN(min_pix, c);
max_pix=FFMAX(max_pix, c);
if (!(edges & 2)) { // (mb_y != 0) // there is row above
ptr = src - linesize; // top line
for (i = 0; i < 8; i++) {
c = *(ptr + i);
sum += c;
min_pix = FFMIN(min_pix, c);
max_pix = FFMAX(max_pix, c);
}
if(edges&4){//last block on the row?
memset(dst+area5,c,8);//set with last pixel fr
memcpy(dst+area4, ptr, 8);
}else{
memcpy(dst+area4, ptr, 16);//both area4 and 5
if (edges & 4) { // last block on the row?
memset(dst + area5, c, 8); // set with last pixel fr
memcpy(dst + area4, ptr, 8);
} else {
memcpy(dst + area4, ptr, 16); // both area4 and 5
}
memcpy(dst+area6, ptr-linesize, 8);//area6 always present in the above block
// area6 always present in the above block
memcpy(dst + area6, ptr - linesize, 8);
}
//now calculate the stuff we need
if(edges&3){//mb_x==0 || mb_y==0){
int avg=(sum+4)>>3;
if(edges&1){ //(mb_x==0) {//implies mb_y!=0
memset(dst+area1,avg,8+8+1);//areas 1,2 and 3 are averaged
}else{//implies y==0 x!=0
memset(dst+area3,avg, 1+16+8);//areas 3, 4,5,6
}
sum+=avg*9;
}else{
uint8_t c=*(src-1-linesize);//the edge pixel, in the top line and left column
dst[area3]=c;
sum+=c;
//edge pixel is not part of min/max
// now calculate the stuff we need
if (edges & 3) { // mb_x ==0 || mb_y == 0) {
int avg = (sum + 4) >> 3;
if (edges & 1) // (mb_x == 0) { // implies mb_y !=0
memset(dst + area1, avg, 8 + 8 + 1); // areas 1, 2, 3 are averaged
else // implies y == 0 x != 0
memset(dst + area3, avg, 1 + 16 + 8); // areas 3, 4, 5, 6
sum += avg * 9;
} else {
// the edge pixel, in the top line and left column
uint8_t c = *(src - 1 - linesize);
dst[area3] = c;
sum += c;
// edge pixel is not part of min/max
}
(*range) = max_pix - min_pix;
sum += *(dst+area5) + *(dst+area5+1);
*psum = sum;
sum += *(dst + area5) + *(dst + area5 + 1);
*psum = sum;
}
static const uint16_t zero_prediction_weights[64*2] = {
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
static const uint16_t zero_prediction_weights[64 * 2] = {
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,
};
static void spatial_compensation_0(uint8_t *src , uint8_t *dst, int linesize){
int i,j;
int x,y;
unsigned int p;//power divided by 2
static void spatial_compensation_0(uint8_t *src, uint8_t *dst, int linesize)
{
int i, j;
int x, y;
unsigned int p; // power divided by 2
int a;
uint16_t left_sum[2][8] = { { 0 } };
uint16_t top_sum[2][8] = { { 0 } };
for(i=0;i<8;i++){
a=src[area2+7-i]<<4;
for(j=0;j<8;j++){
p=abs(i-j);
left_sum[p&1][j]+= a>>(p>>1);
for (i = 0; i < 8; i++) {
a = src[area2 + 7 - i] << 4;
for (j = 0; j < 8; j++) {
p = abs(i - j);
left_sum[p & 1][j] += a >> (p >> 1);
}
}
for(i=0;i<8;i++){
a=src[area4+i]<<4;
for(j=0;j<8;j++){
p=abs(i-j);
top_sum[p&1][j]+= a>>(p>>1);
for (i = 0; i < 8; i++) {
a = src[area4 + i] << 4;
for (j = 0; j < 8; j++) {
p = abs(i - j);
top_sum[p & 1][j] += a >> (p >> 1);
}
}
for(;i<10;i++){
a=src[area4+i]<<4;
for(j=5;j<8;j++){
p=abs(i-j);
top_sum[p&1][j]+= a>>(p>>1);
for (; i < 10; i++) {
a = src[area4 + i] << 4;
for (j = 5; j < 8; j++) {
p = abs(i - j);
top_sum[p & 1][j] += a >> (p >> 1);
}
}
for(;i<12;i++){
a=src[area4+i]<<4;
for(j=7;j<8;j++){
p=abs(i-j);
top_sum[p&1][j]+= a>>(p>>1);
for (; i < 12; i++) {
a = src[area4 + i] << 4;
for (j = 7; j < 8; j++) {
p = abs(i - j);
top_sum[p & 1][j] += a >> (p >> 1);
}
}
for(i=0;i<8;i++){
top_sum [0][i]+=(top_sum [1][i]*181 + 128 )>>8;//181 is sqrt(2)/2
left_sum[0][i]+=(left_sum[1][i]*181 + 128 )>>8;
for (i = 0; i < 8; i++) {
top_sum[0][i] += (top_sum[1][i] * 181 + 128) >> 8; // 181 is sqrt(2)/2
left_sum[0][i] += (left_sum[1][i] * 181 + 128) >> 8;
}
for(y=0;y<8;y++){
for(x=0;x<8;x++){
dst[x] = (
(uint32_t)top_sum [0][x]*zero_prediction_weights[y*16+x*2+0] +
(uint32_t)left_sum[0][y]*zero_prediction_weights[y*16+x*2+1] +
0x8000
)>>16;
}
dst+=linesize;
for (y = 0; y < 8; y++) {
for (x = 0; x < 8; x++)
dst[x] = ((uint32_t) top_sum[0][x] * zero_prediction_weights[y * 16 + x * 2 + 0] +
(uint32_t) left_sum[0][y] * zero_prediction_weights[y * 16 + x * 2 + 1] +
0x8000) >> 16;
dst += linesize;
}
}
static void spatial_compensation_1(uint8_t *src , uint8_t *dst, int linesize){
int x,y;
for(y=0;y<8;y++){
for(x=0;x<8;x++){
dst[x]=src[area4 + FFMIN(2*y+x+2, 15) ];
}
dst+=linesize;
static void spatial_compensation_1(uint8_t *src, uint8_t *dst, int linesize)
{
int x, y;
for (y = 0; y < 8; y++) {
for (x = 0; x < 8; x++)
dst[x] = src[area4 + FFMIN(2 * y + x + 2, 15)];
dst += linesize;
}
}
static void spatial_compensation_2(uint8_t *src , uint8_t *dst, int linesize){
int x,y;
for(y=0;y<8;y++){
for(x=0;x<8;x++){
dst[x]=src[area4 +1+y+x];
}
dst+=linesize;
static void spatial_compensation_2(uint8_t *src, uint8_t *dst, int linesize)
{
int x, y;
for (y = 0; y < 8; y++) {
for (x = 0; x < 8; x++)
dst[x] = src[area4 + 1 + y + x];
dst += linesize;
}
}
static void spatial_compensation_3(uint8_t *src , uint8_t *dst, int linesize){
int x,y;
for(y=0;y<8;y++){
for(x=0;x<8;x++){
dst[x]=src[area4 +((y+1)>>1)+x];
}
dst+=linesize;
static void spatial_compensation_3(uint8_t *src, uint8_t *dst, int linesize)
{
int x, y;
for (y = 0; y < 8; y++) {
for (x = 0; x < 8; x++)
dst[x] = src[area4 + ((y + 1) >> 1) + x];
dst += linesize;
}
}
static void spatial_compensation_4(uint8_t *src , uint8_t *dst, int linesize){
int x,y;
for(y=0;y<8;y++){
for(x=0;x<8;x++){
dst[x]=( src[area4+x] + src[area6+x] + 1 )>>1;
}
dst+=linesize;
static void spatial_compensation_4(uint8_t *src, uint8_t *dst, int linesize)
{
int x, y;
for (y = 0; y < 8; y++) {
for (x = 0; x < 8; x++)
dst[x] = (src[area4 + x] + src[area6 + x] + 1) >> 1;
dst += linesize;
}
}
static void spatial_compensation_5(uint8_t *src , uint8_t *dst, int linesize){
int x,y;
for(y=0;y<8;y++){
for(x=0;x<8;x++){
if(2*x-y<0){
dst[x]=src[area2+9+2*x-y];
}else{
dst[x]=src[area4 +x-((y+1)>>1)];
}
static void spatial_compensation_5(uint8_t *src, uint8_t *dst, int linesize)
{
int x, y;
for (y = 0; y < 8; y++) {
for (x = 0; x < 8; x++) {
if (2 * x - y < 0)
dst[x] = src[area2 + 9 + 2 * x - y];
else
dst[x] = src[area4 + x - ((y + 1) >> 1)];
}
dst+=linesize;
dst += linesize;
}
}
static void spatial_compensation_6(uint8_t *src , uint8_t *dst, int linesize){
int x,y;
for(y=0;y<8;y++){
for(x=0;x<8;x++){
dst[x]=src[area3+x-y];
}
dst+=linesize;
static void spatial_compensation_6(uint8_t *src, uint8_t *dst, int linesize)
{
int x, y;
for (y = 0; y < 8; y++) {
for (x = 0; x < 8; x++)
dst[x] = src[area3 + x - y];
dst += linesize;
}
}
static void spatial_compensation_7(uint8_t *src , uint8_t *dst, int linesize){
int x,y;
for(y=0;y<8;y++){
for(x=0;x<8;x++){
if(x-2*y>0){
dst[x]=( src[area3-1+x-2*y] + src[area3+x-2*y] + 1)>>1;
}else{
dst[x]=src[area2+8-y +(x>>1)];
}
static void spatial_compensation_7(uint8_t *src, uint8_t *dst, int linesize)
{
int x, y;
for (y = 0; y < 8; y++) {
for (x = 0; x < 8; x++) {
if (x - 2 * y > 0)
dst[x] = (src[area3 - 1 + x - 2 * y] + src[area3 + x - 2 * y] + 1) >> 1;
else
dst[x] = src[area2 + 8 - y + (x >> 1)];
}
dst+=linesize;
dst += linesize;
}
}
static void spatial_compensation_8(uint8_t *src , uint8_t *dst, int linesize){
int x,y;
for(y=0;y<8;y++){
for(x=0;x<8;x++){
dst[x]=( src[area1+7-y] + src[area2+7-y] + 1 )>>1;
}
dst+=linesize;
static void spatial_compensation_8(uint8_t *src, uint8_t *dst, int linesize)
{
int x, y;
for (y = 0; y < 8; y++) {
for (x = 0; x < 8; x++)
dst[x] = (src[area1 + 7 - y] + src[area2 + 7 - y] + 1) >> 1;
dst += linesize;
}
}
static void spatial_compensation_9(uint8_t *src , uint8_t *dst, int linesize){
int x,y;
for(y=0;y<8;y++){
for(x=0;x<8;x++){
dst[x]=src[area2+6-FFMIN(x+y,6)];
}
dst+=linesize;
static void spatial_compensation_9(uint8_t *src, uint8_t *dst, int linesize)
{
int x, y;
for (y = 0; y < 8; y++) {
for (x = 0; x < 8; x++)
dst[x] = src[area2 + 6 - FFMIN(x + y, 6)];
dst += linesize;
}
}
static void spatial_compensation_10(uint8_t *src , uint8_t *dst, int linesize){
int x,y;
for(y=0;y<8;y++){
for(x=0;x<8;x++){
dst[x]=(src[area2+7-y]*(8-x)+src[area4+x]*x+4)>>3;
}
dst+=linesize;
static void spatial_compensation_10(uint8_t *src, uint8_t *dst, int linesize)
{
int x, y;
for (y = 0; y < 8; y++) {
for (x = 0; x < 8; x++)
dst[x] = (src[area2 + 7 - y] * (8 - x) + src[area4 + x] * x + 4) >> 3;
dst += linesize;
}
}
static void spatial_compensation_11(uint8_t *src , uint8_t *dst, int linesize){
int x,y;
for(y=0;y<8;y++){
for(x=0;x<8;x++){
dst[x]=(src[area2+7-y]*y+src[area4+x]*(8-y)+4)>>3;
}
dst+=linesize;
static void spatial_compensation_11(uint8_t *src, uint8_t *dst, int linesize)
{
int x, y;
for (y = 0; y < 8; y++) {
for (x = 0; x < 8; x++)
dst[x] = (src[area2 + 7 - y] * y + src[area4 + x] * (8 - y) + 4) >> 3;
dst += linesize;
}
}
static void x8_loop_filter(uint8_t * ptr, const int a_stride, const int b_stride, int quant){
int i,t;
int p0,p1,p2,p3,p4,p5,p6,p7,p8,p9;
int ql=(quant+10)>>3;
for(i=0; i<8; i++,ptr+=b_stride){
p0=ptr[-5*a_stride];
p1=ptr[-4*a_stride];
p2=ptr[-3*a_stride];
p3=ptr[-2*a_stride];
p4=ptr[-1*a_stride];
p5=ptr[ 0 ];
p6=ptr[ 1*a_stride];
p7=ptr[ 2*a_stride];
p8=ptr[ 3*a_stride];
p9=ptr[ 4*a_stride];
t=
(FFABS(p1-p2) <= ql) +
(FFABS(p2-p3) <= ql) +
(FFABS(p3-p4) <= ql) +
(FFABS(p4-p5) <= ql);
if(t>0){//You need at least 1 to be able to reach a total score of 6.
t+=
(FFABS(p5-p6) <= ql) +
(FFABS(p6-p7) <= ql) +
(FFABS(p7-p8) <= ql) +
(FFABS(p8-p9) <= ql) +
(FFABS(p0-p1) <= ql);
if(t>=6){
int min,max;
min=max=p1;
min=FFMIN(min,p3); max=FFMAX(max,p3);
min=FFMIN(min,p5); max=FFMAX(max,p5);
min=FFMIN(min,p8); max=FFMAX(max,p8);
if(max-min<2*quant){//early stop
min=FFMIN(min,p2); max=FFMAX(max,p2);
min=FFMIN(min,p4); max=FFMAX(max,p4);
min=FFMIN(min,p6); max=FFMAX(max,p6);
min=FFMIN(min,p7); max=FFMAX(max,p7);
if(max-min<2*quant){
ptr[-2*a_stride]=(4*p2 + 3*p3 + 1*p7 + 4)>>3;
ptr[-1*a_stride]=(3*p2 + 3*p4 + 2*p7 + 4)>>3;
ptr[ 0 ]=(2*p2 + 3*p5 + 3*p7 + 4)>>3;
ptr[ 1*a_stride]=(1*p2 + 3*p6 + 4*p7 + 4)>>3;
static void x8_loop_filter(uint8_t *ptr, const int a_stride, const int b_stride, int quant)
{
int i, t;
int p0, p1, p2, p3, p4, p5, p6, p7, p8, p9;
int ql = (quant + 10) >> 3;
for (i = 0; i < 8; i++, ptr += b_stride) {
p0 = ptr[-5 * a_stride];
p1 = ptr[-4 * a_stride];
p2 = ptr[-3 * a_stride];
p3 = ptr[-2 * a_stride];
p4 = ptr[-1 * a_stride];
p5 = ptr[0];
p6 = ptr[1 * a_stride];
p7 = ptr[2 * a_stride];
p8 = ptr[3 * a_stride];
p9 = ptr[4 * a_stride];
t = (FFABS(p1 - p2) <= ql) +
(FFABS(p2 - p3) <= ql) +
(FFABS(p3 - p4) <= ql) +
(FFABS(p4 - p5) <= ql);
// You need at least 1 to be able to reach a total score of 6.
if (t > 0) {
t += (FFABS(p5 - p6) <= ql) +
(FFABS(p6 - p7) <= ql) +
(FFABS(p7 - p8) <= ql) +
(FFABS(p8 - p9) <= ql) +
(FFABS(p0 - p1) <= ql);
if (t >= 6) {
int min, max;
min = max = p1;
min = FFMIN(min, p3);
max = FFMAX(max, p3);
min = FFMIN(min, p5);
max = FFMAX(max, p5);
min = FFMIN(min, p8);
max = FFMAX(max, p8);
if (max - min < 2 * quant) { // early stop
min = FFMIN(min, p2);
max = FFMAX(max, p2);
min = FFMIN(min, p4);
max = FFMAX(max, p4);
min = FFMIN(min, p6);
max = FFMAX(max, p6);
min = FFMIN(min, p7);
max = FFMAX(max, p7);
if (max - min < 2 * quant) {
ptr[-2 * a_stride] = (4 * p2 + 3 * p3 + 1 * p7 + 4) >> 3;
ptr[-1 * a_stride] = (3 * p2 + 3 * p4 + 2 * p7 + 4) >> 3;
ptr[0] = (2 * p2 + 3 * p5 + 3 * p7 + 4) >> 3;
ptr[1 * a_stride] = (1 * p2 + 3 * p6 + 4 * p7 + 4) >> 3;
continue;
};
}
}
}
}
{
int x,x0,x1,x2;
int x, x0, x1, x2;
int m;
x0 = (2*p3 - 5*p4 + 5*p5 - 2*p6 + 4)>>3;
if(FFABS(x0) < quant){
x1=(2*p1 - 5*p2 + 5*p3 - 2*p4 + 4)>>3;
x2=(2*p5 - 5*p6 + 5*p7 - 2*p8 + 4)>>3;
x0 = (2 * p3 - 5 * p4 + 5 * p5 - 2 * p6 + 4) >> 3;
if (FFABS(x0) < quant) {
x1 = (2 * p1 - 5 * p2 + 5 * p3 - 2 * p4 + 4) >> 3;
x2 = (2 * p5 - 5 * p6 + 5 * p7 - 2 * p8 + 4) >> 3;
x=FFABS(x0) - FFMIN( FFABS(x1), FFABS(x2) );
m=p4-p5;
x = FFABS(x0) - FFMIN(FFABS(x1), FFABS(x2));
m = p4 - p5;
if( x > 0 && (m^x0) <0){
if (x > 0 && (m ^ x0) < 0) {
int32_t sign;
sign=m>>31;
m=(m^sign)-sign;//abs(m)
m>>=1;
sign = m >> 31;
m = (m ^ sign) - sign; // abs(m)
m >>= 1;
x=(5*x)>>3;
x = (5 * x) >> 3;
if(x>m) x=m;
if (x > m)
x = m;
x=(x^sign)-sign;
x = (x ^ sign) - sign;
ptr[-1*a_stride] -= x;
ptr[ 0] += x;
ptr[-1 * a_stride] -= x;
ptr[0] += x;
}
}
}
}
}
static void x8_h_loop_filter(uint8_t *src, int stride, int qscale){
static void x8_h_loop_filter(uint8_t *src, int stride, int qscale)
{
x8_loop_filter(src, stride, 1, qscale);
}
static void x8_v_loop_filter(uint8_t *src, int stride, int qscale){
static void x8_v_loop_filter(uint8_t *src, int stride, int qscale)
{
x8_loop_filter(src, 1, stride, qscale);
}
av_cold void ff_intrax8dsp_init(IntraX8DSPContext *dsp)
{
dsp->h_loop_filter=x8_h_loop_filter;
dsp->v_loop_filter=x8_v_loop_filter;
dsp->setup_spatial_compensation=x8_setup_spatial_compensation;
dsp->spatial_compensation[0]=spatial_compensation_0;
dsp->spatial_compensation[1]=spatial_compensation_1;
dsp->spatial_compensation[2]=spatial_compensation_2;
dsp->spatial_compensation[3]=spatial_compensation_3;
dsp->spatial_compensation[4]=spatial_compensation_4;
dsp->spatial_compensation[5]=spatial_compensation_5;
dsp->spatial_compensation[6]=spatial_compensation_6;
dsp->spatial_compensation[7]=spatial_compensation_7;
dsp->spatial_compensation[8]=spatial_compensation_8;
dsp->spatial_compensation[9]=spatial_compensation_9;
dsp->spatial_compensation[10]=spatial_compensation_10;
dsp->spatial_compensation[11]=spatial_compensation_11;
dsp->h_loop_filter = x8_h_loop_filter;
dsp->v_loop_filter = x8_v_loop_filter;
dsp->setup_spatial_compensation = x8_setup_spatial_compensation;
dsp->spatial_compensation[0] = spatial_compensation_0;
dsp->spatial_compensation[1] = spatial_compensation_1;
dsp->spatial_compensation[2] = spatial_compensation_2;
dsp->spatial_compensation[3] = spatial_compensation_3;
dsp->spatial_compensation[4] = spatial_compensation_4;
dsp->spatial_compensation[5] = spatial_compensation_5;
dsp->spatial_compensation[6] = spatial_compensation_6;
dsp->spatial_compensation[7] = spatial_compensation_7;
dsp->spatial_compensation[8] = spatial_compensation_8;
dsp->spatial_compensation[9] = spatial_compensation_9;
dsp->spatial_compensation[10] = spatial_compensation_10;
dsp->spatial_compensation[11] = spatial_compensation_11;
}

4
libavcodec/intrax8dsp.h
Unescape View File

@ -25,9 +25,9 @@ typedef struct IntraX8DSPContext {
void (*v_loop_filter)(uint8_t *src, int stride, int qscale);
void (*h_loop_filter)(uint8_t *src, int stride, int qscale);
void (*spatial_compensation[12])(uint8_t *src , uint8_t *dst, int linesize);
void (*spatial_compensation[12])(uint8_t *src, uint8_t *dst, int linesize);
void (*setup_spatial_compensation)(uint8_t *src, uint8_t *dst, int linesize,
int *range, int *sum, int edges);
int *range, int *sum, int edges);
} IntraX8DSPContext;
void ff_intrax8dsp_init(IntraX8DSPContext *dsp);

1793
libavcodec/intrax8huf.h
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