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1 : | edgomez | 1.2 | /***************************************************************************** |
2 : | * | ||
3 : | * XVID MPEG-4 VIDEO CODEC | ||
4 : | * - Postprocessing functions - | ||
5 : | * | ||
6 : | Isibaar | 1.6 | * Copyright(C) 2003-2010 Michael Militzer <isibaar@xvid.org> |
7 : | syskin | 1.4 | * 2004 Marc Fauconneau |
8 : | edgomez | 1.2 | * |
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 | 1.6 | * $Id: postprocessing.c,v 1.5 2008/11/27 00:47:03 Isibaar Exp $ |
24 : | edgomez | 1.2 | * |
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 | 1.3 | /* function pointers */ |
38 : | IMAGEBRIGHTNESS_PTR image_brightness; | ||
39 : | |||
40 : | |||
41 : | edgomez | 1.2 | /* 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 | 1.6 | void |
57 : | stripe_deblock_h(SMPDeblock *h) | ||
58 : | edgomez | 1.2 | { |
59 : | Isibaar | 1.6 | const int stride = h->stride; |
60 : | const int stride2 = stride /2; | ||
61 : | |||
62 : | edgomez | 1.2 | int i,j; |
63 : | int quant; | ||
64 : | |||
65 : | /* luma: j,i in block units */ | ||
66 : | Isibaar | 1.6 | if ((h->flags & XVID_DEBLOCKY)) |
67 : | edgomez | 1.2 | { |
68 : | Isibaar | 1.6 | 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 | 1.2 | { |
73 : | Isibaar | 1.6 | 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 | 1.2 | } |
76 : | Isibaar | 1.6 | } |
77 : | edgomez | 1.2 | |
78 : | Isibaar | 1.6 | /* 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 | 1.2 | { |
86 : | Isibaar | 1.6 | 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 | 1.2 | } |
90 : | } | ||
91 : | Isibaar | 1.6 | } |
92 : | |||
93 : | void | ||
94 : | stripe_deblock_v(SMPDeblock *h) | ||
95 : | { | ||
96 : | const int stride = h->stride; | ||
97 : | const int stride2 = stride /2; | ||
98 : | edgomez | 1.2 | |
99 : | Isibaar | 1.6 | int i,j; |
100 : | int quant; | ||
101 : | edgomez | 1.2 | |
102 : | Isibaar | 1.6 | /* luma: j,i in block units */ |
103 : | if ((h->flags & XVID_DEBLOCKY)) | ||
104 : | edgomez | 1.2 | { |
105 : | Isibaar | 1.6 | int dering = h->flags & XVID_DERINGY; |
106 : | syskin | 1.4 | |
107 : | Isibaar | 1.6 | for (j = h->start_y; j < h->stop_y; j++) /* vertical deblocking */ |
108 : | for (i = 1; i < h->stop_x; i++) | ||
109 : | edgomez | 1.2 | { |
110 : | Isibaar | 1.6 | 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 | 1.2 | } |
113 : | Isibaar | 1.6 | } |
114 : | edgomez | 1.2 | |
115 : | Isibaar | 1.6 | /* 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 | 1.2 | { |
123 : | Isibaar | 1.6 | 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 | 1.2 | } |
127 : | } | ||
128 : | Isibaar | 1.6 | } |
129 : | |||
130 : | 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 : | int k, num_threads = MAX(1, MIN(threads, 4)); | ||
136 : | SMPDeblock data[4]; | ||
137 : | void *status = NULL; | ||
138 : | |||
139 : | /* horizontal deblocking, dispatch threads */ | ||
140 : | for (k = 0; k < num_threads; k++) { | ||
141 : | data[k].flags = flags; | ||
142 : | data[k].img = img; | ||
143 : | data[k].mb_stride = mb_stride; | ||
144 : | data[k].mbs = mbs; | ||
145 : | data[k].stride = edged_width; | ||
146 : | data[k].tbls = tbls; | ||
147 : | |||
148 : | data[k].start_x = (k*mb_width / num_threads)*2; | ||
149 : | data[k].stop_x = ((k+1)*mb_width / num_threads)*2; | ||
150 : | |||
151 : | data[k].stop_y = mb_height*2; | ||
152 : | } | ||
153 : | |||
154 : | /* create threads */ | ||
155 : | for (k = 1; k < num_threads; k++) { | ||
156 : | pthread_create(&data[k].handle, NULL, | ||
157 : | (void*)stripe_deblock_h, (void*)&data[k]); | ||
158 : | } | ||
159 : | |||
160 : | stripe_deblock_h(&data[0]); | ||
161 : | |||
162 : | /* wait until all threads are finished */ | ||
163 : | for (k = 1; k < num_threads; k++) { | ||
164 : | pthread_join(data[k].handle, &status); | ||
165 : | } | ||
166 : | |||
167 : | |||
168 : | /* vertical deblocking, dispatch threads */ | ||
169 : | for (k = 0; k < num_threads; k++) { | ||
170 : | data[k].start_y = (k*mb_height / num_threads)*2; | ||
171 : | data[k].stop_y = ((k+1)*mb_height / num_threads)*2; | ||
172 : | data[k].stop_x = mb_width*2; | ||
173 : | } | ||
174 : | |||
175 : | /* create threads */ | ||
176 : | for (k = 1; k < num_threads; k++) { | ||
177 : | pthread_create(&data[k].handle, NULL, | ||
178 : | (void*)stripe_deblock_v, (void*)&data[k]); | ||
179 : | } | ||
180 : | |||
181 : | stripe_deblock_v(&data[0]); | ||
182 : | |||
183 : | /* wait until all threads are finished */ | ||
184 : | for (k = 1; k < num_threads; k++) { | ||
185 : | pthread_join(data[k].handle, &status); | ||
186 : | } | ||
187 : | |||
188 : | edgomez | 1.2 | |
189 : | if (!bvop) | ||
190 : | tbls->prev_quant = mbs->quant; | ||
191 : | |||
192 : | if ((flags & XVID_FILMEFFECT)) | ||
193 : | { | ||
194 : | add_noise(tbls, img->y, img->y, edged_width, mb_width*16, | ||
195 : | mb_height*16, frame_num % 3, tbls->prev_quant); | ||
196 : | } | ||
197 : | suxen_drol | 1.3 | |
198 : | if (brightness != 0) { | ||
199 : | image_brightness(img->y, edged_width, mb_width*16, mb_height*16, brightness); | ||
200 : | } | ||
201 : | edgomez | 1.2 | } |
202 : | |||
203 : | /******************************************************************************/ | ||
204 : | |||
205 : | void init_deblock(XVID_POSTPROC *tbls) | ||
206 : | { | ||
207 : | int i; | ||
208 : | |||
209 : | for(i = -255; i < 256; i++) { | ||
210 : | tbls->xvid_thresh_tbl[i + 255] = 0; | ||
211 : | if(ABS(i) < THR1) | ||
212 : | tbls->xvid_thresh_tbl[i + 255] = 1; | ||
213 : | tbls->xvid_abs_tbl[i + 255] = ABS(i); | ||
214 : | } | ||
215 : | } | ||
216 : | |||
217 : | #define LOAD_DATA_HOR(x) \ | ||
218 : | /* Load pixel addresses and data for filtering */ \ | ||
219 : | s[0] = *(v[0] = img - 5*stride + x); \ | ||
220 : | s[1] = *(v[1] = img - 4*stride + x); \ | ||
221 : | s[2] = *(v[2] = img - 3*stride + x); \ | ||
222 : | s[3] = *(v[3] = img - 2*stride + x); \ | ||
223 : | s[4] = *(v[4] = img - 1*stride + x); \ | ||
224 : | s[5] = *(v[5] = img + 0*stride + x); \ | ||
225 : | s[6] = *(v[6] = img + 1*stride + x); \ | ||
226 : | s[7] = *(v[7] = img + 2*stride + x); \ | ||
227 : | s[8] = *(v[8] = img + 3*stride + x); \ | ||
228 : | s[9] = *(v[9] = img + 4*stride + x); | ||
229 : | |||
230 : | #define LOAD_DATA_VER(x) \ | ||
231 : | /* Load pixel addresses and data for filtering */ \ | ||
232 : | s[0] = *(v[0] = img + x*stride - 5); \ | ||
233 : | s[1] = *(v[1] = img + x*stride - 4); \ | ||
234 : | s[2] = *(v[2] = img + x*stride - 3); \ | ||
235 : | s[3] = *(v[3] = img + x*stride - 2); \ | ||
236 : | s[4] = *(v[4] = img + x*stride - 1); \ | ||
237 : | s[5] = *(v[5] = img + x*stride + 0); \ | ||
238 : | s[6] = *(v[6] = img + x*stride + 1); \ | ||
239 : | s[7] = *(v[7] = img + x*stride + 2); \ | ||
240 : | s[8] = *(v[8] = img + x*stride + 3); \ | ||
241 : | s[9] = *(v[9] = img + x*stride + 4); | ||
242 : | |||
243 : | syskin | 1.4 | #define APPLY_DERING(x) \ |
244 : | *v[x] = (e[x] == 0) ? ( \ | ||
245 : | (e[x-1] == 0) ? ( \ | ||
246 : | (e[x+1] == 0) ? \ | ||
247 : | ((s[x-1]+s[x]*2+s[x+1])>>2) \ | ||
248 : | : ((s[x-1]+s[x])>>1) ) \ | ||
249 : | : ((s[x]+s[x+1])>>1) ) \ | ||
250 : | : s[x]; | ||
251 : | |||
252 : | edgomez | 1.2 | #define APPLY_FILTER_CORE \ |
253 : | /* First, decide whether to use default or DC-offset mode */ \ | ||
254 : | \ | ||
255 : | eq_cnt = 0; \ | ||
256 : | \ | ||
257 : | eq_cnt += tbls->xvid_thresh_tbl[s[0] - s[1] + 255]; \ | ||
258 : | eq_cnt += tbls->xvid_thresh_tbl[s[1] - s[2] + 255]; \ | ||
259 : | eq_cnt += tbls->xvid_thresh_tbl[s[2] - s[3] + 255]; \ | ||
260 : | eq_cnt += tbls->xvid_thresh_tbl[s[3] - s[4] + 255]; \ | ||
261 : | eq_cnt += tbls->xvid_thresh_tbl[s[4] - s[5] + 255]; \ | ||
262 : | eq_cnt += tbls->xvid_thresh_tbl[s[5] - s[6] + 255]; \ | ||
263 : | eq_cnt += tbls->xvid_thresh_tbl[s[6] - s[7] + 255]; \ | ||
264 : | eq_cnt += tbls->xvid_thresh_tbl[s[7] - s[8] + 255]; \ | ||
265 : | \ | ||
266 : | if(eq_cnt < THR2) { /* Default mode */ \ | ||
267 : | int a30, a31, a32; \ | ||
268 : | int diff, limit; \ | ||
269 : | \ | ||
270 : | if(tbls->xvid_abs_tbl[(s[4] - s[5]) + 255] < quant) { \ | ||
271 : | a30 = ((s[3]<<1) - s[4] * 5 + s[5] * 5 - (s[6]<<1)); \ | ||
272 : | a31 = ((s[1]<<1) - s[2] * 5 + s[3] * 5 - (s[4]<<1)); \ | ||
273 : | a32 = ((s[5]<<1) - s[6] * 5 + s[7] * 5 - (s[8]<<1)); \ | ||
274 : | \ | ||
275 : | diff = (5 * ((SIGN(a30) * MIN(FAST_ABS(a30), MIN(FAST_ABS(a31), FAST_ABS(a32)))) - a30) + 32) >> 6; \ | ||
276 : | limit = (s[4] - s[5]) / 2; \ | ||
277 : | \ | ||
278 : | if (limit > 0) \ | ||
279 : | diff = (diff < 0) ? 0 : ((diff > limit) ? limit : diff); \ | ||
280 : | else \ | ||
281 : | diff = (diff > 0) ? 0 : ((diff < limit) ? limit : diff); \ | ||
282 : | \ | ||
283 : | *v[4] -= diff; \ | ||
284 : | *v[5] += diff; \ | ||
285 : | } \ | ||
286 : | syskin | 1.4 | if (dering) { \ |
287 : | e[0] = (tbls->xvid_abs_tbl[(s[0] - s[1]) + 255] > quant + DERING_STRENGTH) ? 1 : 0; \ | ||
288 : | e[1] = (tbls->xvid_abs_tbl[(s[1] - s[2]) + 255] > quant + DERING_STRENGTH) ? 1 : 0; \ | ||
289 : | e[2] = (tbls->xvid_abs_tbl[(s[2] - s[3]) + 255] > quant + DERING_STRENGTH) ? 1 : 0; \ | ||
290 : | e[3] = (tbls->xvid_abs_tbl[(s[3] - s[4]) + 255] > quant + DERING_STRENGTH) ? 1 : 0; \ | ||
291 : | e[4] = (tbls->xvid_abs_tbl[(s[4] - s[5]) + 255] > quant + DERING_STRENGTH) ? 1 : 0; \ | ||
292 : | e[5] = (tbls->xvid_abs_tbl[(s[5] - s[6]) + 255] > quant + DERING_STRENGTH) ? 1 : 0; \ | ||
293 : | e[6] = (tbls->xvid_abs_tbl[(s[6] - s[7]) + 255] > quant + DERING_STRENGTH) ? 1 : 0; \ | ||
294 : | e[7] = (tbls->xvid_abs_tbl[(s[7] - s[8]) + 255] > quant + DERING_STRENGTH) ? 1 : 0; \ | ||
295 : | e[8] = (tbls->xvid_abs_tbl[(s[8] - s[9]) + 255] > quant + DERING_STRENGTH) ? 1 : 0; \ | ||
296 : | \ | ||
297 : | e[1] |= e[0]; \ | ||
298 : | e[2] |= e[1]; \ | ||
299 : | e[3] |= e[2]; \ | ||
300 : | e[4] |= e[3]; \ | ||
301 : | e[5] |= e[4]; \ | ||
302 : | e[6] |= e[5]; \ | ||
303 : | e[7] |= e[6]; \ | ||
304 : | e[8] |= e[7]; \ | ||
305 : | e[9] = e[8]; \ | ||
306 : | \ | ||
307 : | APPLY_DERING(1) \ | ||
308 : | APPLY_DERING(2) \ | ||
309 : | APPLY_DERING(3) \ | ||
310 : | APPLY_DERING(4) \ | ||
311 : | APPLY_DERING(5) \ | ||
312 : | APPLY_DERING(6) \ | ||
313 : | APPLY_DERING(7) \ | ||
314 : | APPLY_DERING(8) \ | ||
315 : | } \ | ||
316 : | edgomez | 1.2 | } \ |
317 : | else { /* DC-offset mode */ \ | ||
318 : | uint8_t p0, p9; \ | ||
319 : | int min, max; \ | ||
320 : | \ | ||
321 : | /* Now decide whether to apply smoothing filter or not */ \ | ||
322 : | 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]))))))); \ | ||
323 : | 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]))))))); \ | ||
324 : | \ | ||
325 : | if(((max-min)) < 2*quant) { \ | ||
326 : | \ | ||
327 : | /* Choose edge pixels */ \ | ||
328 : | p0 = (tbls->xvid_abs_tbl[(s[1] - s[0]) + 255] < quant) ? s[0] : s[1]; \ | ||
329 : | p9 = (tbls->xvid_abs_tbl[(s[8] - s[9]) + 255] < quant) ? s[9] : s[8]; \ | ||
330 : | \ | ||
331 : | *v[1] = (uint8_t) ((6*p0 + (s[1]<<2) + (s[2]<<1) + (s[3]<<1) + s[4] + s[5] + 8) >> 4); \ | ||
332 : | *v[2] = (uint8_t) (((p0<<2) + (s[1]<<1) + (s[2]<<2) + (s[3]<<1) + (s[4]<<1) + s[5] + s[6] + 8) >> 4); \ | ||
333 : | *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); \ | ||
334 : | *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); \ | ||
335 : | *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); \ | ||
336 : | *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); \ | ||
337 : | *v[7] = (uint8_t) ((s[3] + s[4] + (s[5]<<1) + (s[6]<<1) + (s[7]<<2) + (s[8]<<1) + (p9<<2) + 8) >> 4); \ | ||
338 : | *v[8] = (uint8_t) ((s[4] + s[5] + (s[6]<<1) + (s[7]<<1) + (s[8]<<2) + 6*p9 + 8) >> 4); \ | ||
339 : | } \ | ||
340 : | } | ||
341 : | |||
342 : | syskin | 1.4 | void deblock8x8_h(XVID_POSTPROC *tbls, uint8_t *img, int stride, int quant, int dering) |
343 : | edgomez | 1.2 | { |
344 : | int eq_cnt; | ||
345 : | uint8_t *v[10]; | ||
346 : | syskin | 1.4 | int s[10]; |
347 : | int e[10]; | ||
348 : | edgomez | 1.2 | |
349 : | LOAD_DATA_HOR(0) | ||
350 : | APPLY_FILTER_CORE | ||
351 : | |||
352 : | LOAD_DATA_HOR(1) | ||
353 : | APPLY_FILTER_CORE | ||
354 : | |||
355 : | LOAD_DATA_HOR(2) | ||
356 : | APPLY_FILTER_CORE | ||
357 : | |||
358 : | LOAD_DATA_HOR(3) | ||
359 : | APPLY_FILTER_CORE | ||
360 : | |||
361 : | LOAD_DATA_HOR(4) | ||
362 : | APPLY_FILTER_CORE | ||
363 : | |||
364 : | LOAD_DATA_HOR(5) | ||
365 : | APPLY_FILTER_CORE | ||
366 : | |||
367 : | LOAD_DATA_HOR(6) | ||
368 : | APPLY_FILTER_CORE | ||
369 : | |||
370 : | LOAD_DATA_HOR(7) | ||
371 : | APPLY_FILTER_CORE | ||
372 : | } | ||
373 : | |||
374 : | |||
375 : | syskin | 1.4 | void deblock8x8_v(XVID_POSTPROC *tbls, uint8_t *img, int stride, int quant, int dering) |
376 : | edgomez | 1.2 | { |
377 : | int eq_cnt; | ||
378 : | uint8_t *v[10]; | ||
379 : | int s[10]; | ||
380 : | syskin | 1.4 | int e[10]; |
381 : | edgomez | 1.2 | |
382 : | LOAD_DATA_VER(0) | ||
383 : | APPLY_FILTER_CORE | ||
384 : | |||
385 : | LOAD_DATA_VER(1) | ||
386 : | APPLY_FILTER_CORE | ||
387 : | |||
388 : | LOAD_DATA_VER(2) | ||
389 : | APPLY_FILTER_CORE | ||
390 : | |||
391 : | LOAD_DATA_VER(3) | ||
392 : | APPLY_FILTER_CORE | ||
393 : | |||
394 : | LOAD_DATA_VER(4) | ||
395 : | APPLY_FILTER_CORE | ||
396 : | |||
397 : | LOAD_DATA_VER(5) | ||
398 : | APPLY_FILTER_CORE | ||
399 : | |||
400 : | LOAD_DATA_VER(6) | ||
401 : | APPLY_FILTER_CORE | ||
402 : | |||
403 : | LOAD_DATA_VER(7) | ||
404 : | APPLY_FILTER_CORE | ||
405 : | } | ||
406 : | |||
407 : | /****************************************************************************** | ||
408 : | * * | ||
409 : | * Noise code below taken from MPlayer: http://www.mplayerhq.hu/ * | ||
410 : | * Copyright (C) 2002 Michael Niedermayer <michaelni@gmx.at> * | ||
411 : | * * | ||
412 : | ******************************************************************************/ | ||
413 : | |||
414 : | #define RAND_N(range) ((int) ((double)range * rand() / (RAND_MAX + 1.0))) | ||
415 : | #define STRENGTH1 12 | ||
416 : | #define STRENGTH2 8 | ||
417 : | |||
418 : | void init_noise(XVID_POSTPROC *tbls) | ||
419 : | { | ||
420 : | int i, j; | ||
421 : | int patt[4] = { -1,0,1,0 }; | ||
422 : | |||
423 : | emms(); | ||
424 : | |||
425 : | srand(123457); | ||
426 : | |||
427 : | for(i = 0, j = 0; i < MAX_NOISE; i++, j++) | ||
428 : | { | ||
429 : | double x1, x2, w, y1, y2; | ||
430 : | |||
431 : | do { | ||
432 : | x1 = 2.0 * rand() / (float) RAND_MAX - 1.0; | ||
433 : | x2 = 2.0 * rand() / (float) RAND_MAX - 1.0; | ||
434 : | w = x1 * x1 + x2 * x2; | ||
435 : | } while (w >= 1.0); | ||
436 : | |||
437 : | w = sqrt((-2.0 * log(w)) / w); | ||
438 : | y1 = x1 * w; | ||
439 : | y2 = x1 * w; | ||
440 : | |||
441 : | y1 *= STRENGTH1 / sqrt(3.0); | ||
442 : | y2 *= STRENGTH2 / sqrt(3.0); | ||
443 : | |||
444 : | y1 /= 2; | ||
445 : | y2 /= 2; | ||
446 : | y1 += patt[j%4] * STRENGTH1 * 0.35; | ||
447 : | y2 += patt[j%4] * STRENGTH2 * 0.35; | ||
448 : | |||
449 : | if (y1 < -128) { | ||
450 : | y1=-128; | ||
451 : | } | ||
452 : | else if (y1 > 127) { | ||
453 : | y1= 127; | ||
454 : | } | ||
455 : | |||
456 : | if (y2 < -128) { | ||
457 : | y2=-128; | ||
458 : | } | ||
459 : | else if (y2 > 127) { | ||
460 : | y2= 127; | ||
461 : | } | ||
462 : | |||
463 : | y1 /= 3.0; | ||
464 : | y2 /= 3.0; | ||
465 : | tbls->xvid_noise1[i] = (int) y1; | ||
466 : | tbls->xvid_noise2[i] = (int) y2; | ||
467 : | |||
468 : | if (RAND_N(6) == 0) { | ||
469 : | j--; | ||
470 : | } | ||
471 : | } | ||
472 : | |||
473 : | for (i = 0; i < MAX_RES; i++) | ||
474 : | for (j = 0; j < 3; j++) { | ||
475 : | tbls->xvid_prev_shift[i][j] = tbls->xvid_noise1 + (rand() & (MAX_SHIFT - 1)); | ||
476 : | tbls->xvid_prev_shift[i][3 + j] = tbls->xvid_noise2 + (rand() & (MAX_SHIFT - 1)); | ||
477 : | } | ||
478 : | } | ||
479 : | |||
480 : | void add_noise(XVID_POSTPROC *tbls, uint8_t *dst, uint8_t *src, int stride, int width, int height, int shiftptr, int quant) | ||
481 : | { | ||
482 : | int x, y; | ||
483 : | int shift = 0; | ||
484 : | int add = (quant < 5) ? 3 : 0; | ||
485 : | int8_t *noise = (quant < 5) ? tbls->xvid_noise2 : tbls->xvid_noise1; | ||
486 : | |||
487 : | for(y = 0; y < height; y++) | ||
488 : | { | ||
489 : | int8_t *src2 = (int8_t *) src; | ||
490 : | |||
491 : | shift = rand() & (MAX_SHIFT - 1); | ||
492 : | |||
493 : | shift &= ~7; | ||
494 : | for(x = 0; x < width; x++) | ||
495 : | { | ||
496 : | const int n = tbls->xvid_prev_shift[y][0 + add][x] + tbls->xvid_prev_shift[y][1 + add][x] + | ||
497 : | tbls->xvid_prev_shift[y][2 + add][x]; | ||
498 : | |||
499 : | dst[x] = src2[x] + ((n * src2[x]) >> 7); | ||
500 : | } | ||
501 : | |||
502 : | tbls->xvid_prev_shift[y][shiftptr + add] = noise + shift; | ||
503 : | |||
504 : | dst += stride; | ||
505 : | src += stride; | ||
506 : | suxen_drol | 1.3 | } |
507 : | } | ||
508 : | |||
509 : | |||
510 : | void image_brightness_c(uint8_t *dst, int stride, int width, int height, int offset) | ||
511 : | { | ||
512 : | int x,y; | ||
513 : | |||
514 : | for(y = 0; y < height; y++) | ||
515 : | { | ||
516 : | for(x = 0; x < width; x++) | ||
517 : | { | ||
518 : | Isibaar | 1.5 | int p = dst[y*stride + x]; |
519 : | dst[y*stride + x] = CLIP( p + offset, 0, 255); | ||
520 : | suxen_drol | 1.3 | } |
521 : | edgomez | 1.2 | } |
522 : | } |
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