476 |
} |
} |
477 |
|
|
478 |
|
|
479 |
|
/* |
480 |
|
chroma optimize filter, invented by mf |
481 |
|
a chroma pixel is average from the surrounding pixels, when the |
482 |
|
correpsonding luma pixels are pure black or white. |
483 |
|
*/ |
484 |
|
|
485 |
|
void |
486 |
|
image_chroma_optimize(IMAGE * img, int width, int height, int edged_width) |
487 |
|
{ |
488 |
|
int x,y; |
489 |
|
int pixels = 0; |
490 |
|
|
491 |
|
for (y = 1; y < height/2 - 1; y++) |
492 |
|
for (x = 1; x < width/2 - 1; x++) |
493 |
|
{ |
494 |
|
#define IS_PURE(a) ((a)<=16||(a)>=235) |
495 |
|
#define IMG_Y(Y,X) img->y[(Y)*edged_width + (X)] |
496 |
|
#define IMG_U(Y,X) img->u[(Y)*edged_width/2 + (X)] |
497 |
|
#define IMG_V(Y,X) img->v[(Y)*edged_width/2 + (X)] |
498 |
|
|
499 |
|
if (IS_PURE(IMG_Y(y*2 ,x*2 )) && |
500 |
|
IS_PURE(IMG_Y(y*2 ,x*2+1)) && |
501 |
|
IS_PURE(IMG_Y(y*2+1,x*2 )) && |
502 |
|
IS_PURE(IMG_Y(y*2+1,x*2+1))) |
503 |
|
{ |
504 |
|
IMG_U(y,x) = (IMG_U(y,x-1) + IMG_U(y-1, x) + IMG_U(y, x+1) + IMG_U(y+1, x)) / 4; |
505 |
|
IMG_V(y,x) = (IMG_V(y,x-1) + IMG_V(y-1, x) + IMG_V(y, x+1) + IMG_V(y+1, x)) / 4; |
506 |
|
pixels++; |
507 |
|
} |
508 |
|
|
509 |
|
#undef IS_PURE |
510 |
|
#undef IMG_Y |
511 |
|
#undef IMG_U |
512 |
|
#undef IMG_V |
513 |
|
} |
514 |
|
|
515 |
|
DPRINTF(DPRINTF_DEBUG,"chroma_optimized_pixels = %i/%i", pixels, width*height/4); |
516 |
|
} |
517 |
|
|
518 |
|
|
519 |
|
|
520 |
|
|
521 |
|
|
522 |
/* |
/* |
523 |
perform safe packed colorspace conversion, by splitting |
perform safe packed colorspace conversion, by splitting |
677 |
|
|
678 |
case XVID_CSP_I420: |
case XVID_CSP_I420: |
679 |
yv12_to_yv12(image->y, image->u, image->v, edged_width, edged_width2, |
yv12_to_yv12(image->y, image->u, image->v, edged_width, edged_width2, |
680 |
src, src + width*height, src + width*height + width2*height2, |
src, src + src_stride*height, src + src_stride*height + (src_stride/2)*height2, |
681 |
width, width2, width, height, (csp & XVID_CSP_VFLIP)); |
src_stride, src_stride/2, width, height, (csp & XVID_CSP_VFLIP)); |
682 |
break |
break |
683 |
; |
; |
684 |
case XVID_CSP_YV12: /* u/v swapped */ |
case XVID_CSP_YV12: /* u/v swapped */ |
685 |
yv12_to_yv12(image->y, image->v, image->u, edged_width, edged_width2, |
yv12_to_yv12(image->y, image->v, image->u, edged_width, edged_width2, |
686 |
src, src + width*height, src + width*height + width2*height2, |
src, src + src_stride*height, src + src_stride*height + (src_stride/2)*height2, |
687 |
width, width2, width, height, (csp & XVID_CSP_VFLIP)); |
src_stride, src_stride/2, width, height, (csp & XVID_CSP_VFLIP)); |
688 |
break; |
break; |
689 |
|
|
690 |
case XVID_CSP_USER: |
case XVID_CSP_USER: |
765 |
int interlacing) |
int interlacing) |
766 |
{ |
{ |
767 |
const int edged_width2 = edged_width/2; |
const int edged_width2 = edged_width/2; |
|
int width2 = width/2; |
|
768 |
int height2 = height/2; |
int height2 = height/2; |
769 |
|
|
770 |
/* |
/* |
873 |
return 0; |
return 0; |
874 |
|
|
875 |
case XVID_CSP_I420: |
case XVID_CSP_I420: |
876 |
yv12_to_yv12(dst, dst + width*height, dst + width*height + width2*height2, |
yv12_to_yv12(dst, dst + dst_stride*height, dst + dst_stride*height + (dst_stride/2)*height2, |
877 |
width, width2, |
dst_stride, dst_stride/2, |
878 |
image->y, image->u, image->v, edged_width, edged_width2, |
image->y, image->u, image->v, edged_width, edged_width2, |
879 |
width, height, (csp & XVID_CSP_VFLIP)); |
width, height, (csp & XVID_CSP_VFLIP)); |
880 |
return 0; |
return 0; |
881 |
|
|
882 |
case XVID_CSP_YV12: // u,v swapped |
case XVID_CSP_YV12: // u,v swapped |
883 |
yv12_to_yv12(dst, dst + width*height, dst + width*height + width2*height2, |
yv12_to_yv12(dst, dst + dst_stride*height, dst + dst_stride*height + (dst_stride/2)*height2, |
884 |
width, width2, |
dst_stride, dst_stride/2, |
885 |
image->y, image->v, image->u, edged_width, edged_width2, |
image->y, image->v, image->u, edged_width, edged_width2, |
886 |
width, height, (csp & XVID_CSP_VFLIP)); |
width, height, (csp & XVID_CSP_VFLIP)); |
887 |
return 0; |
return 0; |
1034 |
} |
} |
1035 |
|
|
1036 |
|
|
|
#define ABS(X) (((X)>0)?(X):-(X)) |
|
1037 |
float |
float |
1038 |
image_mad(const IMAGE * img1, |
image_mad(const IMAGE * img1, |
1039 |
const IMAGE * img2, |
const IMAGE * img2, |
1098 |
} |
} |
1099 |
|
|
1100 |
|
|
1101 |
/* reduced resolution deblocking filter */ |
void |
1102 |
|
image_clear(IMAGE * img, int width, int height, int edged_width, |
1103 |
|
int y, int u, int v) |
1104 |
|
{ |
1105 |
|
uint8_t * p; |
1106 |
|
int i; |
1107 |
|
|
1108 |
|
p = img->y; |
1109 |
|
for (i = 0; i < height; i++) { |
1110 |
|
memset(p, y, width); |
1111 |
|
p += edged_width; |
1112 |
|
} |
1113 |
|
|
1114 |
|
p = img->u; |
1115 |
|
for (i = 0; i < height/2; i++) { |
1116 |
|
memset(p, u, width/2); |
1117 |
|
p += edged_width/2; |
1118 |
|
} |
1119 |
|
|
1120 |
|
p = img->v; |
1121 |
|
for (i = 0; i < height/2; i++) { |
1122 |
|
memset(p, v, width/2); |
1123 |
|
p += edged_width/2; |
1124 |
|
} |
1125 |
|
} |
1126 |
|
|
1127 |
|
|
1128 |
|
/* reduced resolution deblocking filter |
1129 |
|
block = block size (16=rrv, 8=full resolution) |
1130 |
|
flags = XVID_DEC_YDEBLOCK|XVID_DEC_UVDEBLOCK |
1131 |
|
*/ |
1132 |
void |
void |
1133 |
image_deblock_rrv(IMAGE * img, int edged_width, |
image_deblock_rrv(IMAGE * img, int edged_width, |
1134 |
const MACROBLOCK * mbs, int mb_width, int mb_height, int mb_stride) |
const MACROBLOCK * mbs, int mb_width, int mb_height, int mb_stride, |
1135 |
|
int block, int flags) |
1136 |
{ |
{ |
1137 |
const int edged_width2 = edged_width /2; |
const int edged_width2 = edged_width /2; |
1138 |
|
const int nblocks = block / 8; /* skals code uses 8pixel block uints */ |
1139 |
int i,j; |
int i,j; |
1140 |
|
|
1141 |
/* horizontal deblocking */ |
/* luma: j,i in block units */ |
1142 |
|
if ((flags & XVID_DEC_DEBLOCKY)) |
1143 |
for (j = 1; j < mb_height*2; j++) // luma: j,i in block units |
{ |
1144 |
|
for (j = 1; j < mb_height*2; j++) /* horizontal deblocking */ |
1145 |
for (i = 0; i < mb_width*2; i++) |
for (i = 0; i < mb_width*2; i++) |
1146 |
{ |
{ |
1147 |
if (mbs[(j-1)/2*mb_stride + (i/2)].mode != MODE_NOT_CODED || |
if (mbs[(j-1)/2*mb_stride + (i/2)].mode != MODE_NOT_CODED || |
1148 |
mbs[(j+0)/2*mb_stride + (i/2)].mode != MODE_NOT_CODED) |
mbs[(j+0)/2*mb_stride + (i/2)].mode != MODE_NOT_CODED) |
1149 |
{ |
{ |
1150 |
xvid_HFilter_31_C(img->y + (j*16 - 1)*edged_width + i*16, |
hfilter_31(img->y + (j*block - 1)*edged_width + i*block, |
1151 |
img->y + (j*16 + 0)*edged_width + i*16, 2); |
img->y + (j*block + 0)*edged_width + i*block, nblocks); |
1152 |
} |
} |
1153 |
} |
} |
1154 |
|
|
1155 |
for (j = 1; j < mb_height; j++) // chroma |
for (j = 0; j < mb_height*2; j++) /* vertical deblocking */ |
1156 |
for (i = 0; i < mb_width; i++) |
for (i = 1; i < mb_width*2; i++) |
1157 |
{ |
{ |
1158 |
if (mbs[(j-1)*mb_stride + i].mode != MODE_NOT_CODED || |
if (mbs[(j/2)*mb_stride + (i-1)/2].mode != MODE_NOT_CODED || |
1159 |
mbs[(j+0)*mb_stride + i].mode != MODE_NOT_CODED) |
mbs[(j/2)*mb_stride + (i+0)/2].mode != MODE_NOT_CODED) |
1160 |
{ |
{ |
1161 |
hfilter_31(img->u + (j*16 - 1)*edged_width2 + i*16, |
vfilter_31(img->y + (j*block)*edged_width + i*block - 1, |
1162 |
img->u + (j*16 + 0)*edged_width2 + i*16, 2); |
img->y + (j*block)*edged_width + i*block + 0, |
1163 |
hfilter_31(img->v + (j*16 - 1)*edged_width2 + i*16, |
edged_width, nblocks); |
1164 |
img->v + (j*16 + 0)*edged_width2 + i*16, 2); |
} |
1165 |
} |
} |
1166 |
} |
} |
1167 |
|
|
|
/* vertical deblocking */ |
|
1168 |
|
|
1169 |
for (j = 0; j < mb_height*2; j++) // luma: i,j in block units |
/* chroma */ |
1170 |
for (i = 1; i < mb_width*2; i++) |
if ((flags & XVID_DEC_DEBLOCKUV)) |
1171 |
{ |
{ |
1172 |
if (mbs[(j/2)*mb_stride + (i-1)/2].mode != MODE_NOT_CODED || |
for (j = 1; j < mb_height; j++) /* horizontal deblocking */ |
1173 |
mbs[(j/2)*mb_stride + (i+0)/2].mode != MODE_NOT_CODED) |
for (i = 0; i < mb_width; i++) |
1174 |
{ |
{ |
1175 |
vfilter_31(img->y + (j*16)*edged_width + i*16 - 1, |
if (mbs[(j-1)*mb_stride + i].mode != MODE_NOT_CODED || |
1176 |
img->y + (j*16)*edged_width + i*16 + 0, |
mbs[(j+0)*mb_stride + i].mode != MODE_NOT_CODED) |
1177 |
edged_width, 2); |
{ |
1178 |
|
hfilter_31(img->u + (j*block - 1)*edged_width2 + i*block, |
1179 |
|
img->u + (j*block + 0)*edged_width2 + i*block, nblocks); |
1180 |
|
hfilter_31(img->v + (j*block - 1)*edged_width2 + i*block, |
1181 |
|
img->v + (j*block + 0)*edged_width2 + i*block, nblocks); |
1182 |
} |
} |
1183 |
} |
} |
1184 |
|
|
1185 |
for (j = 0; j < mb_height; j++) // chroma |
for (j = 0; j < mb_height; j++) /* vertical deblocking */ |
1186 |
for (i = 1; i < mb_width; i++) |
for (i = 1; i < mb_width; i++) |
1187 |
{ |
{ |
1188 |
if (mbs[j*mb_stride + i - 1].mode != MODE_NOT_CODED || |
if (mbs[j*mb_stride + i - 1].mode != MODE_NOT_CODED || |
1189 |
mbs[j*mb_stride + i + 0].mode != MODE_NOT_CODED) |
mbs[j*mb_stride + i + 0].mode != MODE_NOT_CODED) |
1190 |
{ |
{ |
1191 |
vfilter_31(img->u + (j*16)*edged_width2 + i*16 - 1, |
vfilter_31(img->u + (j*block)*edged_width2 + i*block - 1, |
1192 |
img->u + (j*16)*edged_width2 + i*16 + 0, |
img->u + (j*block)*edged_width2 + i*block + 0, |
1193 |
edged_width2, 2); |
edged_width2, nblocks); |
1194 |
vfilter_31(img->v + (j*16)*edged_width2 + i*16 - 1, |
vfilter_31(img->v + (j*block)*edged_width2 + i*block - 1, |
1195 |
img->v + (j*16)*edged_width2 + i*16 + 0, |
img->v + (j*block)*edged_width2 + i*block + 0, |
1196 |
edged_width2, 2); |
edged_width2, nblocks); |
1197 |
} |
} |
1198 |
} |
} |
1199 |
} |
} |
1200 |
|
|
1201 |
|
} |
1202 |
|
|