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Revision 1988 - (view) (download)
1 : | edgomez | 1382 | /***************************************************************************** |
2 : | * | ||
3 : | * XVID MPEG-4 VIDEO CODEC | ||
4 : | * - Postprocessing functions - | ||
5 : | * | ||
6 : | Isibaar | 1911 | * Copyright(C) 2003-2010 Michael Militzer <isibaar@xvid.org> |
7 : | syskin | 1437 | * 2004 Marc Fauconneau |
8 : | edgomez | 1382 | * |
9 : | * This program is free software ; you can redistribute it and/or modify | ||
10 : | * it under the terms of the GNU General Public License as published by | ||
11 : | * the Free Software Foundation ; either version 2 of the License, or | ||
12 : | * (at your option) any later version. | ||
13 : | * | ||
14 : | * This program is distributed in the hope that it will be useful, | ||
15 : | * but WITHOUT ANY WARRANTY ; without even the implied warranty of | ||
16 : | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
17 : | * GNU General Public License for more details. | ||
18 : | * | ||
19 : | * You should have received a copy of the GNU General Public License | ||
20 : | * along with this program ; if not, write to the Free Software | ||
21 : | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
22 : | * | ||
23 : | Isibaar | 1988 | * $Id$ |
24 : | edgomez | 1382 | * |
25 : | ****************************************************************************/ | ||
26 : | |||
27 : | #include <stdlib.h> | ||
28 : | #include <string.h> | ||
29 : | #include <math.h> | ||
30 : | |||
31 : | #include "../portab.h" | ||
32 : | #include "../global.h" | ||
33 : | #include "image.h" | ||
34 : | #include "../utils/emms.h" | ||
35 : | #include "postprocessing.h" | ||
36 : | |||
37 : | suxen_drol | 1397 | /* function pointers */ |
38 : | IMAGEBRIGHTNESS_PTR image_brightness; | ||
39 : | |||
40 : | |||
41 : | edgomez | 1382 | /* Some useful (and fast) macros |
42 : | Note that the MIN/MAX macros assume signed shift - if your compiler | ||
43 : | doesn't do signed shifts, use the default MIN/MAX macros from global.h */ | ||
44 : | |||
45 : | #define FAST_MAX(x,y) ((x) - ((((x) - (y))>>(32 - 1)) & ((x) - (y)))) | ||
46 : | #define FAST_MIN(x,y) ((x) + ((((y) - (x))>>(32 - 1)) & ((y) - (x)))) | ||
47 : | #define FAST_ABS(x) ((((int)(x)) >> 31) ^ ((int)(x))) - (((int)(x)) >> 31) | ||
48 : | #define ABS(X) (((X)>0)?(X):-(X)) | ||
49 : | |||
50 : | void init_postproc(XVID_POSTPROC *tbls) | ||
51 : | { | ||
52 : | init_deblock(tbls); | ||
53 : | init_noise(tbls); | ||
54 : | } | ||
55 : | |||
56 : | Isibaar | 1911 | void |
57 : | stripe_deblock_h(SMPDeblock *h) | ||
58 : | edgomez | 1382 | { |
59 : | Isibaar | 1911 | const int stride = h->stride; |
60 : | const int stride2 = stride /2; | ||
61 : | |||
62 : | edgomez | 1382 | int i,j; |
63 : | int quant; | ||
64 : | |||
65 : | /* luma: j,i in block units */ | ||
66 : | Isibaar | 1911 | if ((h->flags & XVID_DEBLOCKY)) |
67 : | edgomez | 1382 | { |
68 : | Isibaar | 1911 | int dering = h->flags & XVID_DERINGY; |
69 : | |||
70 : | for (j = 1; j < h->stop_y; j++) /* horizontal luma deblocking */ | ||
71 : | for (i = h->start_x; i < h->stop_x; i++) | ||
72 : | edgomez | 1382 | { |
73 : | Isibaar | 1911 | quant = h->mbs[(j+0)/2*h->mb_stride + (i/2)].quant; |
74 : | deblock8x8_h(h->tbls, h->img->y + j*8*stride + i*8, stride, quant, dering); | ||
75 : | edgomez | 1382 | } |
76 : | Isibaar | 1911 | } |
77 : | edgomez | 1382 | |
78 : | Isibaar | 1911 | /* chroma */ |
79 : | if ((h->flags & XVID_DEBLOCKUV)) | ||
80 : | { | ||
81 : | int dering = h->flags & XVID_DERINGUV; | ||
82 : | |||
83 : | for (j = 1; j < h->stop_y/2; j++) /* horizontal deblocking */ | ||
84 : | for (i = h->start_x/2; i < h->stop_x/2; i++) | ||
85 : | edgomez | 1382 | { |
86 : | Isibaar | 1911 | quant = h->mbs[(j+0)*h->mb_stride + i].quant; |
87 : | deblock8x8_h(h->tbls, h->img->u + j*8*stride2 + i*8, stride2, quant, dering); | ||
88 : | deblock8x8_h(h->tbls, h->img->v + j*8*stride2 + i*8, stride2, quant, dering); | ||
89 : | edgomez | 1382 | } |
90 : | } | ||
91 : | Isibaar | 1911 | } |
92 : | edgomez | 1382 | |
93 : | Isibaar | 1911 | void |
94 : | stripe_deblock_v(SMPDeblock *h) | ||
95 : | { | ||
96 : | const int stride = h->stride; | ||
97 : | const int stride2 = stride /2; | ||
98 : | edgomez | 1382 | |
99 : | Isibaar | 1911 | int i,j; |
100 : | int quant; | ||
101 : | |||
102 : | /* luma: j,i in block units */ | ||
103 : | if ((h->flags & XVID_DEBLOCKY)) | ||
104 : | edgomez | 1382 | { |
105 : | Isibaar | 1911 | int dering = h->flags & XVID_DERINGY; |
106 : | syskin | 1437 | |
107 : | Isibaar | 1911 | for (j = h->start_y; j < h->stop_y; j++) /* vertical deblocking */ |
108 : | for (i = 1; i < h->stop_x; i++) | ||
109 : | edgomez | 1382 | { |
110 : | Isibaar | 1911 | quant = h->mbs[(j+0)/2*h->mb_stride + (i/2)].quant; |
111 : | deblock8x8_v(h->tbls, h->img->y + j*8*stride + i*8, stride, quant, dering); | ||
112 : | edgomez | 1382 | } |
113 : | Isibaar | 1911 | } |
114 : | edgomez | 1382 | |
115 : | Isibaar | 1911 | /* chroma */ |
116 : | if ((h->flags & XVID_DEBLOCKUV)) | ||
117 : | { | ||
118 : | int dering = h->flags & XVID_DERINGUV; | ||
119 : | |||
120 : | for (j = h->start_y/2; j < h->stop_y/2; j++) /* vertical deblocking */ | ||
121 : | for (i = 1; i < h->stop_x/2; i++) | ||
122 : | edgomez | 1382 | { |
123 : | Isibaar | 1911 | quant = h->mbs[(j+0)*h->mb_stride + i].quant; |
124 : | deblock8x8_v(h->tbls, h->img->u + j*8*stride2 + i*8, stride2, quant, dering); | ||
125 : | deblock8x8_v(h->tbls, h->img->v + j*8*stride2 + i*8, stride2, quant, dering); | ||
126 : | edgomez | 1382 | } |
127 : | } | ||
128 : | Isibaar | 1911 | } |
129 : | edgomez | 1382 | |
130 : | Isibaar | 1911 | void |
131 : | image_postproc(XVID_POSTPROC *tbls, IMAGE * img, int edged_width, | ||
132 : | const MACROBLOCK * mbs, int mb_width, int mb_height, int mb_stride, | ||
133 : | int flags, int brightness, int frame_num, int bvop, int threads) | ||
134 : | { | ||
135 : | Isibaar | 1971 | int k; |
136 : | #ifndef HAVE_PTHREAD | ||
137 : | int num_threads = 1; | ||
138 : | #else | ||
139 : | int num_threads = MAX(1, MIN(threads, 4)); | ||
140 : | void *status = NULL; | ||
141 : | #endif | ||
142 : | Isibaar | 1911 | SMPDeblock data[4]; |
143 : | |||
144 : | /* horizontal deblocking, dispatch threads */ | ||
145 : | for (k = 0; k < num_threads; k++) { | ||
146 : | data[k].flags = flags; | ||
147 : | data[k].img = img; | ||
148 : | data[k].mb_stride = mb_stride; | ||
149 : | data[k].mbs = mbs; | ||
150 : | data[k].stride = edged_width; | ||
151 : | data[k].tbls = tbls; | ||
152 : | |||
153 : | data[k].start_x = (k*mb_width / num_threads)*2; | ||
154 : | data[k].stop_x = ((k+1)*mb_width / num_threads)*2; | ||
155 : | |||
156 : | data[k].stop_y = mb_height*2; | ||
157 : | } | ||
158 : | Isibaar | 1971 | #ifdef HAVE_PTHREAD |
159 : | Isibaar | 1911 | /* create threads */ |
160 : | for (k = 1; k < num_threads; k++) { | ||
161 : | pthread_create(&data[k].handle, NULL, | ||
162 : | (void*)stripe_deblock_h, (void*)&data[k]); | ||
163 : | } | ||
164 : | Isibaar | 1971 | #endif |
165 : | Isibaar | 1911 | stripe_deblock_h(&data[0]); |
166 : | |||
167 : | Isibaar | 1971 | #ifdef HAVE_PTHREAD |
168 : | Isibaar | 1911 | /* wait until all threads are finished */ |
169 : | for (k = 1; k < num_threads; k++) { | ||
170 : | pthread_join(data[k].handle, &status); | ||
171 : | } | ||
172 : | Isibaar | 1971 | #endif |
173 : | Isibaar | 1911 | |
174 : | /* vertical deblocking, dispatch threads */ | ||
175 : | for (k = 0; k < num_threads; k++) { | ||
176 : | data[k].start_y = (k*mb_height / num_threads)*2; | ||
177 : | data[k].stop_y = ((k+1)*mb_height / num_threads)*2; | ||
178 : | data[k].stop_x = mb_width*2; | ||
179 : | } | ||
180 : | |||
181 : | Isibaar | 1971 | #ifdef HAVE_PTHREAD |
182 : | Isibaar | 1911 | /* create threads */ |
183 : | for (k = 1; k < num_threads; k++) { | ||
184 : | pthread_create(&data[k].handle, NULL, | ||
185 : | (void*)stripe_deblock_v, (void*)&data[k]); | ||
186 : | } | ||
187 : | Isibaar | 1971 | #endif |
188 : | Isibaar | 1911 | stripe_deblock_v(&data[0]); |
189 : | |||
190 : | Isibaar | 1971 | #ifdef HAVE_PTHREAD |
191 : | Isibaar | 1911 | /* wait until all threads are finished */ |
192 : | for (k = 1; k < num_threads; k++) { | ||
193 : | pthread_join(data[k].handle, &status); | ||
194 : | } | ||
195 : | Isibaar | 1971 | #endif |
196 : | Isibaar | 1911 | |
197 : | edgomez | 1382 | if (!bvop) |
198 : | tbls->prev_quant = mbs->quant; | ||
199 : | |||
200 : | if ((flags & XVID_FILMEFFECT)) | ||
201 : | { | ||
202 : | add_noise(tbls, img->y, img->y, edged_width, mb_width*16, | ||
203 : | mb_height*16, frame_num % 3, tbls->prev_quant); | ||
204 : | } | ||
205 : | suxen_drol | 1397 | |
206 : | if (brightness != 0) { | ||
207 : | image_brightness(img->y, edged_width, mb_width*16, mb_height*16, brightness); | ||
208 : | } | ||
209 : | edgomez | 1382 | } |
210 : | |||
211 : | /******************************************************************************/ | ||
212 : | |||
213 : | void init_deblock(XVID_POSTPROC *tbls) | ||
214 : | { | ||
215 : | int i; | ||
216 : | |||
217 : | for(i = -255; i < 256; i++) { | ||
218 : | tbls->xvid_thresh_tbl[i + 255] = 0; | ||
219 : | if(ABS(i) < THR1) | ||
220 : | tbls->xvid_thresh_tbl[i + 255] = 1; | ||
221 : | tbls->xvid_abs_tbl[i + 255] = ABS(i); | ||
222 : | } | ||
223 : | } | ||
224 : | |||
225 : | #define LOAD_DATA_HOR(x) \ | ||
226 : | /* Load pixel addresses and data for filtering */ \ | ||
227 : | s[0] = *(v[0] = img - 5*stride + x); \ | ||
228 : | s[1] = *(v[1] = img - 4*stride + x); \ | ||
229 : | s[2] = *(v[2] = img - 3*stride + x); \ | ||
230 : | s[3] = *(v[3] = img - 2*stride + x); \ | ||
231 : | s[4] = *(v[4] = img - 1*stride + x); \ | ||
232 : | s[5] = *(v[5] = img + 0*stride + x); \ | ||
233 : | s[6] = *(v[6] = img + 1*stride + x); \ | ||
234 : | s[7] = *(v[7] = img + 2*stride + x); \ | ||
235 : | s[8] = *(v[8] = img + 3*stride + x); \ | ||
236 : | s[9] = *(v[9] = img + 4*stride + x); | ||
237 : | |||
238 : | #define LOAD_DATA_VER(x) \ | ||
239 : | /* Load pixel addresses and data for filtering */ \ | ||
240 : | s[0] = *(v[0] = img + x*stride - 5); \ | ||
241 : | s[1] = *(v[1] = img + x*stride - 4); \ | ||
242 : | s[2] = *(v[2] = img + x*stride - 3); \ | ||
243 : | s[3] = *(v[3] = img + x*stride - 2); \ | ||
244 : | s[4] = *(v[4] = img + x*stride - 1); \ | ||
245 : | s[5] = *(v[5] = img + x*stride + 0); \ | ||
246 : | s[6] = *(v[6] = img + x*stride + 1); \ | ||
247 : | s[7] = *(v[7] = img + x*stride + 2); \ | ||
248 : | s[8] = *(v[8] = img + x*stride + 3); \ | ||
249 : | s[9] = *(v[9] = img + x*stride + 4); | ||
250 : | |||
251 : | syskin | 1437 | #define APPLY_DERING(x) \ |
252 : | *v[x] = (e[x] == 0) ? ( \ | ||
253 : | (e[x-1] == 0) ? ( \ | ||
254 : | (e[x+1] == 0) ? \ | ||
255 : | ((s[x-1]+s[x]*2+s[x+1])>>2) \ | ||
256 : | : ((s[x-1]+s[x])>>1) ) \ | ||
257 : | : ((s[x]+s[x+1])>>1) ) \ | ||
258 : | : s[x]; | ||
259 : | |||
260 : | edgomez | 1382 | #define APPLY_FILTER_CORE \ |
261 : | /* First, decide whether to use default or DC-offset mode */ \ | ||
262 : | \ | ||
263 : | eq_cnt = 0; \ | ||
264 : | \ | ||
265 : | eq_cnt += tbls->xvid_thresh_tbl[s[0] - s[1] + 255]; \ | ||
266 : | eq_cnt += tbls->xvid_thresh_tbl[s[1] - s[2] + 255]; \ | ||
267 : | eq_cnt += tbls->xvid_thresh_tbl[s[2] - s[3] + 255]; \ | ||
268 : | eq_cnt += tbls->xvid_thresh_tbl[s[3] - s[4] + 255]; \ | ||
269 : | eq_cnt += tbls->xvid_thresh_tbl[s[4] - s[5] + 255]; \ | ||
270 : | eq_cnt += tbls->xvid_thresh_tbl[s[5] - s[6] + 255]; \ | ||
271 : | eq_cnt += tbls->xvid_thresh_tbl[s[6] - s[7] + 255]; \ | ||
272 : | eq_cnt += tbls->xvid_thresh_tbl[s[7] - s[8] + 255]; \ | ||
273 : | \ | ||
274 : | if(eq_cnt < THR2) { /* Default mode */ \ | ||
275 : | int a30, a31, a32; \ | ||
276 : | int diff, limit; \ | ||
277 : | \ | ||
278 : | if(tbls->xvid_abs_tbl[(s[4] - s[5]) + 255] < quant) { \ | ||
279 : | a30 = ((s[3]<<1) - s[4] * 5 + s[5] * 5 - (s[6]<<1)); \ | ||
280 : | a31 = ((s[1]<<1) - s[2] * 5 + s[3] * 5 - (s[4]<<1)); \ | ||
281 : | a32 = ((s[5]<<1) - s[6] * 5 + s[7] * 5 - (s[8]<<1)); \ | ||
282 : | \ | ||
283 : | diff = (5 * ((SIGN(a30) * MIN(FAST_ABS(a30), MIN(FAST_ABS(a31), FAST_ABS(a32)))) - a30) + 32) >> 6; \ | ||
284 : | limit = (s[4] - s[5]) / 2; \ | ||
285 : | \ | ||
286 : | if (limit > 0) \ | ||
287 : | diff = (diff < 0) ? 0 : ((diff > limit) ? limit : diff); \ | ||
288 : | else \ | ||
289 : | diff = (diff > 0) ? 0 : ((diff < limit) ? limit : diff); \ | ||
290 : | \ | ||
291 : | *v[4] -= diff; \ | ||
292 : | *v[5] += diff; \ | ||
293 : | } \ | ||
294 : | syskin | 1437 | if (dering) { \ |
295 : | e[0] = (tbls->xvid_abs_tbl[(s[0] - s[1]) + 255] > quant + DERING_STRENGTH) ? 1 : 0; \ | ||
296 : | e[1] = (tbls->xvid_abs_tbl[(s[1] - s[2]) + 255] > quant + DERING_STRENGTH) ? 1 : 0; \ | ||
297 : | e[2] = (tbls->xvid_abs_tbl[(s[2] - s[3]) + 255] > quant + DERING_STRENGTH) ? 1 : 0; \ | ||
298 : | e[3] = (tbls->xvid_abs_tbl[(s[3] - s[4]) + 255] > quant + DERING_STRENGTH) ? 1 : 0; \ | ||
299 : | e[4] = (tbls->xvid_abs_tbl[(s[4] - s[5]) + 255] > quant + DERING_STRENGTH) ? 1 : 0; \ | ||
300 : | e[5] = (tbls->xvid_abs_tbl[(s[5] - s[6]) + 255] > quant + DERING_STRENGTH) ? 1 : 0; \ | ||
301 : | e[6] = (tbls->xvid_abs_tbl[(s[6] - s[7]) + 255] > quant + DERING_STRENGTH) ? 1 : 0; \ | ||
302 : | e[7] = (tbls->xvid_abs_tbl[(s[7] - s[8]) + 255] > quant + DERING_STRENGTH) ? 1 : 0; \ | ||
303 : | e[8] = (tbls->xvid_abs_tbl[(s[8] - s[9]) + 255] > quant + DERING_STRENGTH) ? 1 : 0; \ | ||
304 : | \ | ||
305 : | e[1] |= e[0]; \ | ||
306 : | e[2] |= e[1]; \ | ||
307 : | e[3] |= e[2]; \ | ||
308 : | e[4] |= e[3]; \ | ||
309 : | e[5] |= e[4]; \ | ||
310 : | e[6] |= e[5]; \ | ||
311 : | e[7] |= e[6]; \ | ||
312 : | e[8] |= e[7]; \ | ||
313 : | e[9] = e[8]; \ | ||
314 : | \ | ||
315 : | APPLY_DERING(1) \ | ||
316 : | APPLY_DERING(2) \ | ||
317 : | APPLY_DERING(3) \ | ||
318 : | APPLY_DERING(4) \ | ||
319 : | APPLY_DERING(5) \ | ||
320 : | APPLY_DERING(6) \ | ||
321 : | APPLY_DERING(7) \ | ||
322 : | APPLY_DERING(8) \ | ||
323 : | } \ | ||
324 : | edgomez | 1382 | } \ |
325 : | else { /* DC-offset mode */ \ | ||
326 : | uint8_t p0, p9; \ | ||
327 : | int min, max; \ | ||
328 : | \ | ||
329 : | /* Now decide whether to apply smoothing filter or not */ \ | ||
330 : | max = FAST_MAX(s[1], FAST_MAX(s[2], FAST_MAX(s[3], FAST_MAX(s[4], FAST_MAX(s[5], FAST_MAX(s[6], FAST_MAX(s[7], s[8]))))))); \ | ||
331 : | min = FAST_MIN(s[1], FAST_MIN(s[2], FAST_MIN(s[3], FAST_MIN(s[4], FAST_MIN(s[5], FAST_MIN(s[6], FAST_MIN(s[7], s[8]))))))); \ | ||
332 : | \ | ||
333 : | if(((max-min)) < 2*quant) { \ | ||
334 : | \ | ||
335 : | /* Choose edge pixels */ \ | ||
336 : | p0 = (tbls->xvid_abs_tbl[(s[1] - s[0]) + 255] < quant) ? s[0] : s[1]; \ | ||
337 : | p9 = (tbls->xvid_abs_tbl[(s[8] - s[9]) + 255] < quant) ? s[9] : s[8]; \ | ||
338 : | \ | ||
339 : | *v[1] = (uint8_t) ((6*p0 + (s[1]<<2) + (s[2]<<1) + (s[3]<<1) + s[4] + s[5] + 8) >> 4); \ | ||
340 : | *v[2] = (uint8_t) (((p0<<2) + (s[1]<<1) + (s[2]<<2) + (s[3]<<1) + (s[4]<<1) + s[5] + s[6] + 8) >> 4); \ | ||
341 : | *v[3] = (uint8_t) (((p0<<1) + (s[1]<<1) + (s[2]<<1) + (s[3]<<2) + (s[4]<<1) + (s[5]<<1) + s[6] + s[7] + 8) >> 4); \ | ||
342 : | *v[4] = (uint8_t) ((p0 + s[1] + (s[2]<<1) + (s[3]<<1) + (s[4]<<2) + (s[5]<<1) + (s[6]<<1) + s[7] + s[8] + 8) >> 4); \ | ||
343 : | *v[5] = (uint8_t) ((s[1] + s[2] + (s[3]<<1) + (s[4]<<1) + (s[5]<<2) + (s[6]<<1) + (s[7]<<1) + s[8] + p9 + 8) >> 4); \ | ||
344 : | *v[6] = (uint8_t) ((s[2] + s[3] + (s[4]<<1) + (s[5]<<1) + (s[6]<<2) + (s[7]<<1) + (s[8]<<1) + (p9<<1) + 8) >> 4); \ | ||
345 : | *v[7] = (uint8_t) ((s[3] + s[4] + (s[5]<<1) + (s[6]<<1) + (s[7]<<2) + (s[8]<<1) + (p9<<2) + 8) >> 4); \ | ||
346 : | *v[8] = (uint8_t) ((s[4] + s[5] + (s[6]<<1) + (s[7]<<1) + (s[8]<<2) + 6*p9 + 8) >> 4); \ | ||
347 : | } \ | ||
348 : | } | ||
349 : | |||
350 : | syskin | 1437 | void deblock8x8_h(XVID_POSTPROC *tbls, uint8_t *img, int stride, int quant, int dering) |
351 : | edgomez | 1382 | { |
352 : | int eq_cnt; | ||
353 : | uint8_t *v[10]; | ||
354 : | syskin | 1437 | int s[10]; |
355 : | int e[10]; | ||
356 : | edgomez | 1382 | |
357 : | LOAD_DATA_HOR(0) | ||
358 : | APPLY_FILTER_CORE | ||
359 : | |||
360 : | LOAD_DATA_HOR(1) | ||
361 : | APPLY_FILTER_CORE | ||
362 : | |||
363 : | LOAD_DATA_HOR(2) | ||
364 : | APPLY_FILTER_CORE | ||
365 : | |||
366 : | LOAD_DATA_HOR(3) | ||
367 : | APPLY_FILTER_CORE | ||
368 : | |||
369 : | LOAD_DATA_HOR(4) | ||
370 : | APPLY_FILTER_CORE | ||
371 : | |||
372 : | LOAD_DATA_HOR(5) | ||
373 : | APPLY_FILTER_CORE | ||
374 : | |||
375 : | LOAD_DATA_HOR(6) | ||
376 : | APPLY_FILTER_CORE | ||
377 : | |||
378 : | LOAD_DATA_HOR(7) | ||
379 : | APPLY_FILTER_CORE | ||
380 : | } | ||
381 : | |||
382 : | |||
383 : | syskin | 1437 | void deblock8x8_v(XVID_POSTPROC *tbls, uint8_t *img, int stride, int quant, int dering) |
384 : | edgomez | 1382 | { |
385 : | int eq_cnt; | ||
386 : | uint8_t *v[10]; | ||
387 : | int s[10]; | ||
388 : | syskin | 1437 | int e[10]; |
389 : | edgomez | 1382 | |
390 : | LOAD_DATA_VER(0) | ||
391 : | APPLY_FILTER_CORE | ||
392 : | |||
393 : | LOAD_DATA_VER(1) | ||
394 : | APPLY_FILTER_CORE | ||
395 : | |||
396 : | LOAD_DATA_VER(2) | ||
397 : | APPLY_FILTER_CORE | ||
398 : | |||
399 : | LOAD_DATA_VER(3) | ||
400 : | APPLY_FILTER_CORE | ||
401 : | |||
402 : | LOAD_DATA_VER(4) | ||
403 : | APPLY_FILTER_CORE | ||
404 : | |||
405 : | LOAD_DATA_VER(5) | ||
406 : | APPLY_FILTER_CORE | ||
407 : | |||
408 : | LOAD_DATA_VER(6) | ||
409 : | APPLY_FILTER_CORE | ||
410 : | |||
411 : | LOAD_DATA_VER(7) | ||
412 : | APPLY_FILTER_CORE | ||
413 : | } | ||
414 : | |||
415 : | /****************************************************************************** | ||
416 : | * * | ||
417 : | * Noise code below taken from MPlayer: http://www.mplayerhq.hu/ * | ||
418 : | * Copyright (C) 2002 Michael Niedermayer <michaelni@gmx.at> * | ||
419 : | * * | ||
420 : | ******************************************************************************/ | ||
421 : | |||
422 : | #define RAND_N(range) ((int) ((double)range * rand() / (RAND_MAX + 1.0))) | ||
423 : | #define STRENGTH1 12 | ||
424 : | #define STRENGTH2 8 | ||
425 : | |||
426 : | void init_noise(XVID_POSTPROC *tbls) | ||
427 : | { | ||
428 : | int i, j; | ||
429 : | int patt[4] = { -1,0,1,0 }; | ||
430 : | |||
431 : | emms(); | ||
432 : | |||
433 : | srand(123457); | ||
434 : | |||
435 : | for(i = 0, j = 0; i < MAX_NOISE; i++, j++) | ||
436 : | { | ||
437 : | double x1, x2, w, y1, y2; | ||
438 : | |||
439 : | do { | ||
440 : | x1 = 2.0 * rand() / (float) RAND_MAX - 1.0; | ||
441 : | x2 = 2.0 * rand() / (float) RAND_MAX - 1.0; | ||
442 : | w = x1 * x1 + x2 * x2; | ||
443 : | } while (w >= 1.0); | ||
444 : | |||
445 : | w = sqrt((-2.0 * log(w)) / w); | ||
446 : | y1 = x1 * w; | ||
447 : | y2 = x1 * w; | ||
448 : | |||
449 : | y1 *= STRENGTH1 / sqrt(3.0); | ||
450 : | y2 *= STRENGTH2 / sqrt(3.0); | ||
451 : | |||
452 : | y1 /= 2; | ||
453 : | y2 /= 2; | ||
454 : | y1 += patt[j%4] * STRENGTH1 * 0.35; | ||
455 : | y2 += patt[j%4] * STRENGTH2 * 0.35; | ||
456 : | |||
457 : | if (y1 < -128) { | ||
458 : | y1=-128; | ||
459 : | } | ||
460 : | else if (y1 > 127) { | ||
461 : | y1= 127; | ||
462 : | } | ||
463 : | |||
464 : | if (y2 < -128) { | ||
465 : | y2=-128; | ||
466 : | } | ||
467 : | else if (y2 > 127) { | ||
468 : | y2= 127; | ||
469 : | } | ||
470 : | |||
471 : | y1 /= 3.0; | ||
472 : | y2 /= 3.0; | ||
473 : | tbls->xvid_noise1[i] = (int) y1; | ||
474 : | tbls->xvid_noise2[i] = (int) y2; | ||
475 : | |||
476 : | if (RAND_N(6) == 0) { | ||
477 : | j--; | ||
478 : | } | ||
479 : | } | ||
480 : | |||
481 : | for (i = 0; i < MAX_RES; i++) | ||
482 : | for (j = 0; j < 3; j++) { | ||
483 : | tbls->xvid_prev_shift[i][j] = tbls->xvid_noise1 + (rand() & (MAX_SHIFT - 1)); | ||
484 : | tbls->xvid_prev_shift[i][3 + j] = tbls->xvid_noise2 + (rand() & (MAX_SHIFT - 1)); | ||
485 : | } | ||
486 : | } | ||
487 : | |||
488 : | void add_noise(XVID_POSTPROC *tbls, uint8_t *dst, uint8_t *src, int stride, int width, int height, int shiftptr, int quant) | ||
489 : | { | ||
490 : | int x, y; | ||
491 : | int shift = 0; | ||
492 : | int add = (quant < 5) ? 3 : 0; | ||
493 : | int8_t *noise = (quant < 5) ? tbls->xvid_noise2 : tbls->xvid_noise1; | ||
494 : | |||
495 : | for(y = 0; y < height; y++) | ||
496 : | { | ||
497 : | int8_t *src2 = (int8_t *) src; | ||
498 : | |||
499 : | shift = rand() & (MAX_SHIFT - 1); | ||
500 : | |||
501 : | shift &= ~7; | ||
502 : | for(x = 0; x < width; x++) | ||
503 : | { | ||
504 : | const int n = tbls->xvid_prev_shift[y][0 + add][x] + tbls->xvid_prev_shift[y][1 + add][x] + | ||
505 : | tbls->xvid_prev_shift[y][2 + add][x]; | ||
506 : | |||
507 : | dst[x] = src2[x] + ((n * src2[x]) >> 7); | ||
508 : | } | ||
509 : | |||
510 : | tbls->xvid_prev_shift[y][shiftptr + add] = noise + shift; | ||
511 : | |||
512 : | dst += stride; | ||
513 : | src += stride; | ||
514 : | } | ||
515 : | } | ||
516 : | suxen_drol | 1397 | |
517 : | |||
518 : | void image_brightness_c(uint8_t *dst, int stride, int width, int height, int offset) | ||
519 : | { | ||
520 : | int x,y; | ||
521 : | |||
522 : | for(y = 0; y < height; y++) | ||
523 : | { | ||
524 : | for(x = 0; x < width; x++) | ||
525 : | { | ||
526 : | Isibaar | 1805 | int p = dst[y*stride + x]; |
527 : | dst[y*stride + x] = CLIP( p + offset, 0, 255); | ||
528 : | suxen_drol | 1397 | } |
529 : | } | ||
530 : | } |
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