/*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
-* @file intrax8dsp.c
- *@brief IntraX8 frame sub-decoder image manipulation routines
- *
+* @file
+ *@brief IntraX8 frame subdecoder image manipulation routines
*/
-#include "dsputil.h"
+#include "intrax8dsp.h"
+#include "libavutil/common.h"
/*
area positions, #3 is 1 pixel only, other are 8 pixels
#define area6 (8+8+1+16)
/**
- Collect statistics and prepare the edge pixels required by the other spacial compensation functions.
+ Collect statistics and prepare the edge pixels required by the other spatial compensation functions.
* @param src pointer to the beginning of the processed block
- * @param dst pointer to emu_edge, edge pixels are stored in way other compensation routines use.
+ * @param dst pointer to emu_edge, edge pixels are stored the way other compensation routines do.
* @param linesize byte offset between 2 vertical pixels in the source image
- * @param range pointer to the variable where the range of edge pixels is to be stored (max-min values)
- * @param psum pointer to the variable where the sum of edge pixels is to be stored
- * @param edges informs this routine that the block is on image border, so it have to interpolate the missing edge pixels.
- and some of the edge pixels should be interpolated, flag have following meaning:
+ * @param range pointer to the variable where the edge pixel range is to be stored (max-min values)
+ * @param psum pointer to the variable where the edge pixel sum is to be stored
+ * @param edges Informs 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 on the row, interpolate area #5;
+ 4 - mb_x>= (mb_width-1) last block in the row, interpolate area #5;
*/
-static void x8_setup_spacial_compensation(uint8_t *src, uint8_t *dst, int linesize,
+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;
}
memcpy(dst+area6, ptr-linesize, 8);//area6 always present in the above block
}
-//now calc the stuff we need
+ //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
}
sum+=avg*9;
}else{
- uint8_t c;
- c=*(src-1-linesize);//the edge pixel,in the top line and left column
+ 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
110, 1172, 144, 1107, 193, 1028, 254, 932, 317, 846, 366, 731, 458, 611, 499, 499
};
-static void spacial_compensation_0(uint8_t *src , uint8_t *dst, int linesize){
+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];
- uint16_t top_sum[2][8];
- memset(left_sum,0,2*8*sizeof(uint16_t));
- memset( top_sum,0,2*8*sizeof(uint16_t));
+ 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;
dst+=linesize;
}
}
-static void spacial_compensation_1(uint8_t *src , uint8_t *dst, int linesize){
+static void spatial_compensation_1(uint8_t *src , uint8_t *dst, int linesize){
int x,y;
for(y=0;y<8;y++){
dst+=linesize;
}
}
-static void spacial_compensation_2(uint8_t *src , uint8_t *dst, int linesize){
+static void spatial_compensation_2(uint8_t *src , uint8_t *dst, int linesize){
int x,y;
for(y=0;y<8;y++){
dst+=linesize;
}
}
-static void spacial_compensation_3(uint8_t *src , uint8_t *dst, int linesize){
+static void spatial_compensation_3(uint8_t *src , uint8_t *dst, int linesize){
int x,y;
for(y=0;y<8;y++){
dst+=linesize;
}
}
-static void spacial_compensation_4(uint8_t *src , uint8_t *dst, int linesize){
+static void spatial_compensation_4(uint8_t *src , uint8_t *dst, int linesize){
int x,y;
for(y=0;y<8;y++){
dst+=linesize;
}
}
-static void spacial_compensation_5(uint8_t *src , uint8_t *dst, int linesize){
+static void spatial_compensation_5(uint8_t *src , uint8_t *dst, int linesize){
int x,y;
for(y=0;y<8;y++){
dst+=linesize;
}
}
-static void spacial_compensation_6(uint8_t *src , uint8_t *dst, int linesize){
+static void spatial_compensation_6(uint8_t *src , uint8_t *dst, int linesize){
int x,y;
for(y=0;y<8;y++){
dst+=linesize;
}
}
-static void spacial_compensation_7(uint8_t *src , uint8_t *dst, int linesize){
+static void spatial_compensation_7(uint8_t *src , uint8_t *dst, int linesize){
int x,y;
for(y=0;y<8;y++){
dst+=linesize;
}
}
-static void spacial_compensation_8(uint8_t *src , uint8_t *dst, int linesize){
+static void spatial_compensation_8(uint8_t *src , uint8_t *dst, int linesize){
int x,y;
for(y=0;y<8;y++){
dst+=linesize;
}
}
-static void spacial_compensation_9(uint8_t *src , uint8_t *dst, int linesize){
+static void spatial_compensation_9(uint8_t *src , uint8_t *dst, int linesize){
int x,y;
for(y=0;y<8;y++){
dst+=linesize;
}
}
-static void spacial_compensation_10(uint8_t *src , uint8_t *dst, int linesize){
+static void spatial_compensation_10(uint8_t *src , uint8_t *dst, int linesize){
int x,y;
for(y=0;y<8;y++){
dst+=linesize;
}
}
-static void spacial_compensation_11(uint8_t *src , uint8_t *dst, int linesize){
+static void spatial_compensation_11(uint8_t *src , uint8_t *dst, int linesize){
int x,y;
for(y=0;y<8;y++){
(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 total score of 6.
+ 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) +
x8_loop_filter(src, 1, stride, qscale);
}
-void ff_intrax8dsp_init(DSPContext* dsp, AVCodecContext *avctx) {
- dsp->x8_h_loop_filter=x8_h_loop_filter;
- dsp->x8_v_loop_filter=x8_v_loop_filter;
- dsp->x8_setup_spacial_compensation=x8_setup_spacial_compensation;
- dsp->x8_spacial_compensation[0]=spacial_compensation_0;
- dsp->x8_spacial_compensation[1]=spacial_compensation_1;
- dsp->x8_spacial_compensation[2]=spacial_compensation_2;
- dsp->x8_spacial_compensation[3]=spacial_compensation_3;
- dsp->x8_spacial_compensation[4]=spacial_compensation_4;
- dsp->x8_spacial_compensation[5]=spacial_compensation_5;
- dsp->x8_spacial_compensation[6]=spacial_compensation_6;
- dsp->x8_spacial_compensation[7]=spacial_compensation_7;
- dsp->x8_spacial_compensation[8]=spacial_compensation_8;
- dsp->x8_spacial_compensation[9]=spacial_compensation_9;
- dsp->x8_spacial_compensation[10]=spacial_compensation_10;
- dsp->x8_spacial_compensation[11]=spacial_compensation_11;
-}
-
-#if 0
-static void wmv2_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;
-
- for(i=0; i<8; i++,ptr+=b_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];
-
- {
- int x,x0,x1,x2;
- int m;
-
- x0 = (2*p3 - 5*p4 + 5*p5 - 2*p6 + 4)>>3;
- if(abs(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=abs(x0) - FFMIN( abs(x1), abs(x2) );
- m=p4-p5;
-
- if( x > 0 && (m^x0) < 0){
- int32_t sign;
-
- sign=m>>31;
- m=(m^sign)-sign;//abs(m)
- m>>=1;
-
- x=(5*x)>>3;
-
- if(x>m) x=m;
-
- x=(x^sign)-sign;
-
- ptr[-1*a_stride] -= x;
- ptr[ 0] += x;
- }
- }
- }
- }
+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;
}
-#endif
projects / ffmpeg / blobdiff