FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/vc1dsp.c
Date: 2021-09-24 03:35:22
Exec Total Coverage
Lines: 440 500 88.0%
Branches: 102 124 82.3%

Line Branch Exec Source
1 /*
2 * VC-1 and WMV3 decoder - DSP functions
3 * Copyright (c) 2006 Konstantin Shishkov
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 /**
23 * @file
24 * VC-1 and WMV3 decoder
25 */
26
27 #include "libavutil/avassert.h"
28 #include "libavutil/common.h"
29 #include "libavutil/intreadwrite.h"
30 #include "h264chroma.h"
31 #include "qpeldsp.h"
32 #include "rnd_avg.h"
33 #include "vc1dsp.h"
34 #include "startcode.h"
35
36 /* Apply overlap transform to horizontal edge */
37 static void vc1_v_overlap_c(uint8_t *src, int stride)
38 {
39 int i;
40 int a, b, c, d;
41 int d1, d2;
42 int rnd = 1;
43 for (i = 0; i < 8; i++) {
44 a = src[-2 * stride];
45 b = src[-stride];
46 c = src[0];
47 d = src[stride];
48 d1 = (a - d + 3 + rnd) >> 3;
49 d2 = (a - d + b - c + 4 - rnd) >> 3;
50
51 src[-2 * stride] = a - d1;
52 src[-stride] = av_clip_uint8(b - d2);
53 src[0] = av_clip_uint8(c + d2);
54 src[stride] = d + d1;
55 src++;
56 rnd = !rnd;
57 }
58 }
59
60 /* Apply overlap transform to vertical edge */
61 static void vc1_h_overlap_c(uint8_t *src, int stride)
62 {
63 int i;
64 int a, b, c, d;
65 int d1, d2;
66 int rnd = 1;
67 for (i = 0; i < 8; i++) {
68 a = src[-2];
69 b = src[-1];
70 c = src[0];
71 d = src[1];
72 d1 = (a - d + 3 + rnd) >> 3;
73 d2 = (a - d + b - c + 4 - rnd) >> 3;
74
75 src[-2] = a - d1;
76 src[-1] = av_clip_uint8(b - d2);
77 src[0] = av_clip_uint8(c + d2);
78 src[1] = d + d1;
79 src += stride;
80 rnd = !rnd;
81 }
82 }
83
84 1228 static void vc1_v_s_overlap_c(int16_t *top, int16_t *bottom)
85 {
86 int i;
87 int a, b, c, d;
88 int d1, d2;
89 1228 int rnd1 = 4, rnd2 = 3;
90
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11052 for (i = 0; i < 8; i++) {
91 9824 a = top[48];
92 9824 b = top[56];
93 9824 c = bottom[0];
94 9824 d = bottom[8];
95 9824 d1 = a - d;
96 9824 d2 = a - d + b - c;
97
98 9824 top[48] = ((a * 8) - d1 + rnd1) >> 3;
99 9824 top[56] = ((b * 8) - d2 + rnd2) >> 3;
100 9824 bottom[0] = ((c * 8) + d2 + rnd1) >> 3;
101 9824 bottom[8] = ((d * 8) + d1 + rnd2) >> 3;
102
103 9824 bottom++;
104 9824 top++;
105 9824 rnd2 = 7 - rnd2;
106 9824 rnd1 = 7 - rnd1;
107 }
108 1228 }
109
110 1344 static void vc1_h_s_overlap_c(int16_t *left, int16_t *right, int left_stride, int right_stride, int flags)
111 {
112 int i;
113 int a, b, c, d;
114 int d1, d2;
115
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1344 int rnd1 = flags & 2 ? 3 : 4;
116 1344 int rnd2 = 7 - rnd1;
117
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12096 for (i = 0; i < 8; i++) {
118 10752 a = left[6];
119 10752 b = left[7];
120 10752 c = right[0];
121 10752 d = right[1];
122 10752 d1 = a - d;
123 10752 d2 = a - d + b - c;
124
125 10752 left[6] = ((a * 8) - d1 + rnd1) >> 3;
126 10752 left[7] = ((b * 8) - d2 + rnd2) >> 3;
127 10752 right[0] = ((c * 8) + d2 + rnd1) >> 3;
128 10752 right[1] = ((d * 8) + d1 + rnd2) >> 3;
129
130 10752 right += right_stride;
131 10752 left += left_stride;
132
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10752 if (flags & 1) {
133 10752 rnd2 = 7 - rnd2;
134 10752 rnd1 = 7 - rnd1;
135 }
136 }
137 1344 }
138
139 /**
140 * VC-1 in-loop deblocking filter for one line
141 * @param src source block type
142 * @param stride block stride
143 * @param pq block quantizer
144 * @return whether other 3 pairs should be filtered or not
145 * @see 8.6
146 */
147 12651385 static av_always_inline int vc1_filter_line(uint8_t *src, int stride, int pq)
148 {
149 12651385 int a0 = (2 * (src[-2 * stride] - src[1 * stride]) -
150 12651385 5 * (src[-1 * stride] - src[0 * stride]) + 4) >> 3;
151 12651385 int a0_sign = a0 >> 31; /* Store sign */
152
153 12651385 a0 = (a0 ^ a0_sign) - a0_sign; /* a0 = FFABS(a0); */
154
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12651385 if (a0 < pq) {
155 11336868 int a1 = FFABS((2 * (src[-4 * stride] - src[-1 * stride]) -
156 5 * (src[-3 * stride] - src[-2 * stride]) + 4) >> 3);
157 11336868 int a2 = FFABS((2 * (src[ 0 * stride] - src[ 3 * stride]) -
158 5 * (src[ 1 * stride] - src[ 2 * stride]) + 4) >> 3);
159
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11336868 if (a1 < a0 || a2 < a0) {
160 6629183 int clip = src[-1 * stride] - src[0 * stride];
161 6629183 int clip_sign = clip >> 31;
162
163 6629183 clip = ((clip ^ clip_sign) - clip_sign) >> 1;
164
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6629183 if (clip) {
165 5371346 int a3 = FFMIN(a1, a2);
166 5371346 int d = 5 * (a3 - a0);
167 5371346 int d_sign = (d >> 31);
168
169 5371346 d = ((d ^ d_sign) - d_sign) >> 3;
170 5371346 d_sign ^= a0_sign;
171
172
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5371346 if (d_sign ^ clip_sign)
173 325611 d = 0;
174 else {
175 5045735 d = FFMIN(d, clip);
176 5045735 d = (d ^ d_sign) - d_sign; /* Restore sign */
177 5045735 src[-1 * stride] = av_clip_uint8(src[-1 * stride] - d);
178 5045735 src[ 0 * stride] = av_clip_uint8(src[ 0 * stride] + d);
179 }
180 5371346 return 1;
181 }
182 }
183 }
184 7280039 return 0;
185 }
186
187 /**
188 * VC-1 in-loop deblocking filter
189 * @param src source block type
190 * @param step distance between horizontally adjacent elements
191 * @param stride distance between vertically adjacent elements
192 * @param len edge length to filter (4 or 8 pixels)
193 * @param pq block quantizer
194 * @see 8.6
195 */
196 3832084 static inline void vc1_loop_filter(uint8_t *src, int step, int stride,
197 int len, int pq)
198 {
199 int i;
200 int filt3;
201
202
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10339187 for (i = 0; i < len; i += 4) {
203 6507103 filt3 = vc1_filter_line(src + 2 * step, stride, pq);
204
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6507103 if (filt3) {
205 2048094 vc1_filter_line(src + 0 * step, stride, pq);
206 2048094 vc1_filter_line(src + 1 * step, stride, pq);
207 2048094 vc1_filter_line(src + 3 * step, stride, pq);
208 }
209 6507103 src += step * 4;
210 }
211 3832084 }
212
213 424296 static void vc1_v_loop_filter4_c(uint8_t *src, int stride, int pq)
214 {
215 424296 vc1_loop_filter(src, 1, stride, 4, pq);
216 424296 }
217
218 957369 static void vc1_h_loop_filter4_c(uint8_t *src, int stride, int pq)
219 {
220 957369 vc1_loop_filter(src, stride, 1, 4, pq);
221 957369 }
222
223 1357229 static void vc1_v_loop_filter8_c(uint8_t *src, int stride, int pq)
224 {
225 1357229 vc1_loop_filter(src, 1, stride, 8, pq);
226 1357229 }
227
228 980890 static void vc1_h_loop_filter8_c(uint8_t *src, int stride, int pq)
229 {
230 980890 vc1_loop_filter(src, stride, 1, 8, pq);
231 980890 }
232
233 69192 static void vc1_v_loop_filter16_c(uint8_t *src, int stride, int pq)
234 {
235 69192 vc1_loop_filter(src, 1, stride, 16, pq);
236 69192 }
237
238 43108 static void vc1_h_loop_filter16_c(uint8_t *src, int stride, int pq)
239 {
240 43108 vc1_loop_filter(src, stride, 1, 16, pq);
241 43108 }
242
243 /* Do inverse transform on 8x8 block */
244 48583 static void vc1_inv_trans_8x8_dc_c(uint8_t *dest, ptrdiff_t stride, int16_t *block)
245 {
246 int i;
247 48583 int dc = block[0];
248
249 48583 dc = (3 * dc + 1) >> 1;
250 48583 dc = (3 * dc + 16) >> 5;
251
252
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437247 for (i = 0; i < 8; i++) {
253 388664 dest[0] = av_clip_uint8(dest[0] + dc);
254 388664 dest[1] = av_clip_uint8(dest[1] + dc);
255 388664 dest[2] = av_clip_uint8(dest[2] + dc);
256 388664 dest[3] = av_clip_uint8(dest[3] + dc);
257 388664 dest[4] = av_clip_uint8(dest[4] + dc);
258 388664 dest[5] = av_clip_uint8(dest[5] + dc);
259 388664 dest[6] = av_clip_uint8(dest[6] + dc);
260 388664 dest[7] = av_clip_uint8(dest[7] + dc);
261 388664 dest += stride;
262 }
263 48583 }
264
265 704273 static void vc1_inv_trans_8x8_c(int16_t block[64])
266 {
267 int i;
268 register int t1, t2, t3, t4, t5, t6, t7, t8;
269 int16_t *src, *dst, temp[64];
270
271 704273 src = block;
272 704273 dst = temp;
273
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6338457 for (i = 0; i < 8; i++) {
274 5634184 t1 = 12 * (src[ 0] + src[32]) + 4;
275 5634184 t2 = 12 * (src[ 0] - src[32]) + 4;
276 5634184 t3 = 16 * src[16] + 6 * src[48];
277 5634184 t4 = 6 * src[16] - 16 * src[48];
278
279 5634184 t5 = t1 + t3;
280 5634184 t6 = t2 + t4;
281 5634184 t7 = t2 - t4;
282 5634184 t8 = t1 - t3;
283
284 5634184 t1 = 16 * src[ 8] + 15 * src[24] + 9 * src[40] + 4 * src[56];
285 5634184 t2 = 15 * src[ 8] - 4 * src[24] - 16 * src[40] - 9 * src[56];
286 5634184 t3 = 9 * src[ 8] - 16 * src[24] + 4 * src[40] + 15 * src[56];
287 5634184 t4 = 4 * src[ 8] - 9 * src[24] + 15 * src[40] - 16 * src[56];
288
289 5634184 dst[0] = (t5 + t1) >> 3;
290 5634184 dst[1] = (t6 + t2) >> 3;
291 5634184 dst[2] = (t7 + t3) >> 3;
292 5634184 dst[3] = (t8 + t4) >> 3;
293 5634184 dst[4] = (t8 - t4) >> 3;
294 5634184 dst[5] = (t7 - t3) >> 3;
295 5634184 dst[6] = (t6 - t2) >> 3;
296 5634184 dst[7] = (t5 - t1) >> 3;
297
298 5634184 src += 1;
299 5634184 dst += 8;
300 }
301
302 704273 src = temp;
303 704273 dst = block;
304
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6338457 for (i = 0; i < 8; i++) {
305 5634184 t1 = 12 * (src[ 0] + src[32]) + 64;
306 5634184 t2 = 12 * (src[ 0] - src[32]) + 64;
307 5634184 t3 = 16 * src[16] + 6 * src[48];
308 5634184 t4 = 6 * src[16] - 16 * src[48];
309
310 5634184 t5 = t1 + t3;
311 5634184 t6 = t2 + t4;
312 5634184 t7 = t2 - t4;
313 5634184 t8 = t1 - t3;
314
315 5634184 t1 = 16 * src[ 8] + 15 * src[24] + 9 * src[40] + 4 * src[56];
316 5634184 t2 = 15 * src[ 8] - 4 * src[24] - 16 * src[40] - 9 * src[56];
317 5634184 t3 = 9 * src[ 8] - 16 * src[24] + 4 * src[40] + 15 * src[56];
318 5634184 t4 = 4 * src[ 8] - 9 * src[24] + 15 * src[40] - 16 * src[56];
319
320 5634184 dst[ 0] = (t5 + t1) >> 7;
321 5634184 dst[ 8] = (t6 + t2) >> 7;
322 5634184 dst[16] = (t7 + t3) >> 7;
323 5634184 dst[24] = (t8 + t4) >> 7;
324 5634184 dst[32] = (t8 - t4 + 1) >> 7;
325 5634184 dst[40] = (t7 - t3 + 1) >> 7;
326 5634184 dst[48] = (t6 - t2 + 1) >> 7;
327 5634184 dst[56] = (t5 - t1 + 1) >> 7;
328
329 5634184 src++;
330 5634184 dst++;
331 }
332 704273 }
333
334 /* Do inverse transform on 8x4 part of block */
335 15798 static void vc1_inv_trans_8x4_dc_c(uint8_t *dest, ptrdiff_t stride, int16_t *block)
336 {
337 int i;
338 15798 int dc = block[0];
339
340 15798 dc = (3 * dc + 1) >> 1;
341 15798 dc = (17 * dc + 64) >> 7;
342
343
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78990 for (i = 0; i < 4; i++) {
344 63192 dest[0] = av_clip_uint8(dest[0] + dc);
345 63192 dest[1] = av_clip_uint8(dest[1] + dc);
346 63192 dest[2] = av_clip_uint8(dest[2] + dc);
347 63192 dest[3] = av_clip_uint8(dest[3] + dc);
348 63192 dest[4] = av_clip_uint8(dest[4] + dc);
349 63192 dest[5] = av_clip_uint8(dest[5] + dc);
350 63192 dest[6] = av_clip_uint8(dest[6] + dc);
351 63192 dest[7] = av_clip_uint8(dest[7] + dc);
352 63192 dest += stride;
353 }
354 15798 }
355
356 206615 static void vc1_inv_trans_8x4_c(uint8_t *dest, ptrdiff_t stride, int16_t *block)
357 {
358 int i;
359 register int t1, t2, t3, t4, t5, t6, t7, t8;
360 int16_t *src, *dst;
361
362 206615 src = block;
363 206615 dst = block;
364
365
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1033075 for (i = 0; i < 4; i++) {
366 826460 t1 = 12 * (src[0] + src[4]) + 4;
367 826460 t2 = 12 * (src[0] - src[4]) + 4;
368 826460 t3 = 16 * src[2] + 6 * src[6];
369 826460 t4 = 6 * src[2] - 16 * src[6];
370
371 826460 t5 = t1 + t3;
372 826460 t6 = t2 + t4;
373 826460 t7 = t2 - t4;
374 826460 t8 = t1 - t3;
375
376 826460 t1 = 16 * src[1] + 15 * src[3] + 9 * src[5] + 4 * src[7];
377 826460 t2 = 15 * src[1] - 4 * src[3] - 16 * src[5] - 9 * src[7];
378 826460 t3 = 9 * src[1] - 16 * src[3] + 4 * src[5] + 15 * src[7];
379 826460 t4 = 4 * src[1] - 9 * src[3] + 15 * src[5] - 16 * src[7];
380
381 826460 dst[0] = (t5 + t1) >> 3;
382 826460 dst[1] = (t6 + t2) >> 3;
383 826460 dst[2] = (t7 + t3) >> 3;
384 826460 dst[3] = (t8 + t4) >> 3;
385 826460 dst[4] = (t8 - t4) >> 3;
386 826460 dst[5] = (t7 - t3) >> 3;
387 826460 dst[6] = (t6 - t2) >> 3;
388 826460 dst[7] = (t5 - t1) >> 3;
389
390 826460 src += 8;
391 826460 dst += 8;
392 }
393
394 206615 src = block;
395
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1859535 for (i = 0; i < 8; i++) {
396 1652920 t1 = 17 * (src[ 0] + src[16]) + 64;
397 1652920 t2 = 17 * (src[ 0] - src[16]) + 64;
398 1652920 t3 = 22 * src[ 8] + 10 * src[24];
399 1652920 t4 = 22 * src[24] - 10 * src[ 8];
400
401 1652920 dest[0 * stride] = av_clip_uint8(dest[0 * stride] + ((t1 + t3) >> 7));
402 1652920 dest[1 * stride] = av_clip_uint8(dest[1 * stride] + ((t2 - t4) >> 7));
403 1652920 dest[2 * stride] = av_clip_uint8(dest[2 * stride] + ((t2 + t4) >> 7));
404 1652920 dest[3 * stride] = av_clip_uint8(dest[3 * stride] + ((t1 - t3) >> 7));
405
406 1652920 src++;
407 1652920 dest++;
408 }
409 206615 }
410
411 /* Do inverse transform on 4x8 parts of block */
412 17898 static void vc1_inv_trans_4x8_dc_c(uint8_t *dest, ptrdiff_t stride, int16_t *block)
413 {
414 int i;
415 17898 int dc = block[0];
416
417 17898 dc = (17 * dc + 4) >> 3;
418 17898 dc = (12 * dc + 64) >> 7;
419
420
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161082 for (i = 0; i < 8; i++) {
421 143184 dest[0] = av_clip_uint8(dest[0] + dc);
422 143184 dest[1] = av_clip_uint8(dest[1] + dc);
423 143184 dest[2] = av_clip_uint8(dest[2] + dc);
424 143184 dest[3] = av_clip_uint8(dest[3] + dc);
425 143184 dest += stride;
426 }
427 17898 }
428
429 208454 static void vc1_inv_trans_4x8_c(uint8_t *dest, ptrdiff_t stride, int16_t *block)
430 {
431 int i;
432 register int t1, t2, t3, t4, t5, t6, t7, t8;
433 int16_t *src, *dst;
434
435 208454 src = block;
436 208454 dst = block;
437
438
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1876086 for (i = 0; i < 8; i++) {
439 1667632 t1 = 17 * (src[0] + src[2]) + 4;
440 1667632 t2 = 17 * (src[0] - src[2]) + 4;
441 1667632 t3 = 22 * src[1] + 10 * src[3];
442 1667632 t4 = 22 * src[3] - 10 * src[1];
443
444 1667632 dst[0] = (t1 + t3) >> 3;
445 1667632 dst[1] = (t2 - t4) >> 3;
446 1667632 dst[2] = (t2 + t4) >> 3;
447 1667632 dst[3] = (t1 - t3) >> 3;
448
449 1667632 src += 8;
450 1667632 dst += 8;
451 }
452
453 208454 src = block;
454
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1042270 for (i = 0; i < 4; i++) {
455 833816 t1 = 12 * (src[ 0] + src[32]) + 64;
456 833816 t2 = 12 * (src[ 0] - src[32]) + 64;
457 833816 t3 = 16 * src[16] + 6 * src[48];
458 833816 t4 = 6 * src[16] - 16 * src[48];
459
460 833816 t5 = t1 + t3;
461 833816 t6 = t2 + t4;
462 833816 t7 = t2 - t4;
463 833816 t8 = t1 - t3;
464
465 833816 t1 = 16 * src[ 8] + 15 * src[24] + 9 * src[40] + 4 * src[56];
466 833816 t2 = 15 * src[ 8] - 4 * src[24] - 16 * src[40] - 9 * src[56];
467 833816 t3 = 9 * src[ 8] - 16 * src[24] + 4 * src[40] + 15 * src[56];
468 833816 t4 = 4 * src[ 8] - 9 * src[24] + 15 * src[40] - 16 * src[56];
469
470 833816 dest[0 * stride] = av_clip_uint8(dest[0 * stride] + ((t5 + t1) >> 7));
471 833816 dest[1 * stride] = av_clip_uint8(dest[1 * stride] + ((t6 + t2) >> 7));
472 833816 dest[2 * stride] = av_clip_uint8(dest[2 * stride] + ((t7 + t3) >> 7));
473 833816 dest[3 * stride] = av_clip_uint8(dest[3 * stride] + ((t8 + t4) >> 7));
474 833816 dest[4 * stride] = av_clip_uint8(dest[4 * stride] + ((t8 - t4 + 1) >> 7));
475 833816 dest[5 * stride] = av_clip_uint8(dest[5 * stride] + ((t7 - t3 + 1) >> 7));
476 833816 dest[6 * stride] = av_clip_uint8(dest[6 * stride] + ((t6 - t2 + 1) >> 7));
477 833816 dest[7 * stride] = av_clip_uint8(dest[7 * stride] + ((t5 - t1 + 1) >> 7));
478
479 833816 src++;
480 833816 dest++;
481 }
482 208454 }
483
484 /* Do inverse transform on 4x4 part of block */
485 21184 static void vc1_inv_trans_4x4_dc_c(uint8_t *dest, ptrdiff_t stride, int16_t *block)
486 {
487 int i;
488 21184 int dc = block[0];
489
490 21184 dc = (17 * dc + 4) >> 3;
491 21184 dc = (17 * dc + 64) >> 7;
492
493
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105920 for (i = 0; i < 4; i++) {
494 84736 dest[0] = av_clip_uint8(dest[0] + dc);
495 84736 dest[1] = av_clip_uint8(dest[1] + dc);
496 84736 dest[2] = av_clip_uint8(dest[2] + dc);
497 84736 dest[3] = av_clip_uint8(dest[3] + dc);
498 84736 dest += stride;
499 }
500 21184 }
501
502 168947 static void vc1_inv_trans_4x4_c(uint8_t *dest, ptrdiff_t stride, int16_t *block)
503 {
504 int i;
505 register int t1, t2, t3, t4;
506 int16_t *src, *dst;
507
508 168947 src = block;
509 168947 dst = block;
510
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844735 for (i = 0; i < 4; i++) {
511 675788 t1 = 17 * (src[0] + src[2]) + 4;
512 675788 t2 = 17 * (src[0] - src[2]) + 4;
513 675788 t3 = 22 * src[1] + 10 * src[3];
514 675788 t4 = 22 * src[3] - 10 * src[1];
515
516 675788 dst[0] = (t1 + t3) >> 3;
517 675788 dst[1] = (t2 - t4) >> 3;
518 675788 dst[2] = (t2 + t4) >> 3;
519 675788 dst[3] = (t1 - t3) >> 3;
520
521 675788 src += 8;
522 675788 dst += 8;
523 }
524
525 168947 src = block;
526
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844735 for (i = 0; i < 4; i++) {
527 675788 t1 = 17 * (src[0] + src[16]) + 64;
528 675788 t2 = 17 * (src[0] - src[16]) + 64;
529 675788 t3 = 22 * src[8] + 10 * src[24];
530 675788 t4 = 22 * src[24] - 10 * src[8];
531
532 675788 dest[0 * stride] = av_clip_uint8(dest[0 * stride] + ((t1 + t3) >> 7));
533 675788 dest[1 * stride] = av_clip_uint8(dest[1 * stride] + ((t2 - t4) >> 7));
534 675788 dest[2 * stride] = av_clip_uint8(dest[2 * stride] + ((t2 + t4) >> 7));
535 675788 dest[3 * stride] = av_clip_uint8(dest[3 * stride] + ((t1 - t3) >> 7));
536
537 675788 src++;
538 675788 dest++;
539 }
540 168947 }
541
542 /* motion compensation functions */
543
544 /* Filter in case of 2 filters */
545 #define VC1_MSPEL_FILTER_16B(DIR, TYPE) \
546 static av_always_inline int vc1_mspel_ ## DIR ## _filter_16bits(const TYPE *src, \
547 int stride, \
548 int mode) \
549 { \
550 switch(mode) { \
551 case 0: /* no shift - should not occur */ \
552 return 0; \
553 case 1: /* 1/4 shift */ \
554 return -4 * src[-stride] + 53 * src[0] + \
555 18 * src[stride] - 3 * src[stride * 2]; \
556 case 2: /* 1/2 shift */ \
557 return -1 * src[-stride] + 9 * src[0] + \
558 9 * src[stride] - 1 * src[stride * 2]; \
559 case 3: /* 3/4 shift */ \
560 return -3 * src[-stride] + 18 * src[0] + \
561 53 * src[stride] - 4 * src[stride * 2]; \
562 } \
563 return 0; /* should not occur */ \
564 }
565
566
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34406792 VC1_MSPEL_FILTER_16B(ver, uint8_t)
567
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27631808 VC1_MSPEL_FILTER_16B(hor, int16_t)
568
569 /* Filter used to interpolate fractional pel values */
570 18643904 static av_always_inline int vc1_mspel_filter(const uint8_t *src, int stride,
571 int mode, int r)
572 {
573
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18643904 switch (mode) {
574 case 0: // no shift
575 return src[0];
576 5356480 case 1: // 1/4 shift
577 5356480 return (-4 * src[-stride] + 53 * src[0] +
578 5356480 18 * src[stride] - 3 * src[stride * 2] + 32 - r) >> 6;
579 8374016 case 2: // 1/2 shift
580 8374016 return (-1 * src[-stride] + 9 * src[0] +
581 8374016 9 * src[stride] - 1 * src[stride * 2] + 8 - r) >> 4;
582 4913408 case 3: // 3/4 shift
583 4913408 return (-3 * src[-stride] + 18 * src[0] +
584 4913408 53 * src[stride] - 4 * src[stride * 2] + 32 - r) >> 6;
585 }
586 return 0; // should not occur
587 }
588
589 /* Function used to do motion compensation with bicubic interpolation */
590 #define VC1_MSPEL_MC(OP, OP4, OPNAME) \
591 static av_always_inline void OPNAME ## vc1_mspel_mc(uint8_t *dst, \
592 const uint8_t *src, \
593 ptrdiff_t stride, \
594 int hmode, \
595 int vmode, \
596 int rnd) \
597 { \
598 int i, j; \
599 \
600 if (vmode) { /* Horizontal filter to apply */ \
601 int r; \
602 \
603 if (hmode) { /* Vertical filter to apply, output to tmp */ \
604 static const int shift_value[] = { 0, 5, 1, 5 }; \
605 int shift = (shift_value[hmode] + shift_value[vmode]) >> 1; \
606 int16_t tmp[11 * 8], *tptr = tmp; \
607 \
608 r = (1 << (shift - 1)) + rnd - 1; \
609 \
610 src -= 1; \
611 for (j = 0; j < 8; j++) { \
612 for (i = 0; i < 11; i++) \
613 tptr[i] = (vc1_mspel_ver_filter_16bits(src + i, stride, vmode) + r) >> shift; \
614 src += stride; \
615 tptr += 11; \
616 } \
617 \
618 r = 64 - rnd; \
619 tptr = tmp + 1; \
620 for (j = 0; j < 8; j++) { \
621 for (i = 0; i < 8; i++) \
622 OP(dst[i], (vc1_mspel_hor_filter_16bits(tptr + i, 1, hmode) + r) >> 7); \
623 dst += stride; \
624 tptr += 11; \
625 } \
626 \
627 return; \
628 } else { /* No horizontal filter, output 8 lines to dst */ \
629 r = 1 - rnd; \
630 \
631 for (j = 0; j < 8; j++) { \
632 for (i = 0; i < 8; i++) \
633 OP(dst[i], vc1_mspel_filter(src + i, stride, vmode, r)); \
634 src += stride; \
635 dst += stride; \
636 } \
637 return; \
638 } \
639 } \
640 \
641 /* Horizontal mode with no vertical mode */ \
642 for (j = 0; j < 8; j++) { \
643 for (i = 0; i < 8; i++) \
644 OP(dst[i], vc1_mspel_filter(src + i, 1, hmode, rnd)); \
645 dst += stride; \
646 src += stride; \
647 } \
648 }\
649 static av_always_inline void OPNAME ## vc1_mspel_mc_16(uint8_t *dst, \
650 const uint8_t *src, \
651 ptrdiff_t stride, \
652 int hmode, \
653 int vmode, \
654 int rnd) \
655 { \
656 int i, j; \
657 \
658 if (vmode) { /* Horizontal filter to apply */ \
659 int r; \
660 \
661 if (hmode) { /* Vertical filter to apply, output to tmp */ \
662 static const int shift_value[] = { 0, 5, 1, 5 }; \
663 int shift = (shift_value[hmode] + shift_value[vmode]) >> 1; \
664 int16_t tmp[19 * 16], *tptr = tmp; \
665 \
666 r = (1 << (shift - 1)) + rnd - 1; \
667 \
668 src -= 1; \
669 for (j = 0; j < 16; j++) { \
670 for (i = 0; i < 19; i++) \
671 tptr[i] = (vc1_mspel_ver_filter_16bits(src + i, stride, vmode) + r) >> shift; \
672 src += stride; \
673 tptr += 19; \
674 } \
675 \
676 r = 64 - rnd; \
677 tptr = tmp + 1; \
678 for (j = 0; j < 16; j++) { \
679 for (i = 0; i < 16; i++) \
680 OP(dst[i], (vc1_mspel_hor_filter_16bits(tptr + i, 1, hmode) + r) >> 7); \
681 dst += stride; \
682 tptr += 19; \
683 } \
684 \
685 return; \
686 } else { /* No horizontal filter, output 8 lines to dst */ \
687 r = 1 - rnd; \
688 \
689 for (j = 0; j < 16; j++) { \
690 for (i = 0; i < 16; i++) \
691 OP(dst[i], vc1_mspel_filter(src + i, stride, vmode, r)); \
692 src += stride; \
693 dst += stride; \
694 } \
695 return; \
696 } \
697 } \
698 \
699 /* Horizontal mode with no vertical mode */ \
700 for (j = 0; j < 16; j++) { \
701 for (i = 0; i < 16; i++) \
702 OP(dst[i], vc1_mspel_filter(src + i, 1, hmode, rnd)); \
703 dst += stride; \
704 src += stride; \
705 } \
706 }\
707 static void OPNAME ## pixels8x8_c(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int rnd){\
708 int i;\
709 for(i=0; i<8; i++){\
710 OP4(*(uint32_t*)(block ), AV_RN32(pixels ));\
711 OP4(*(uint32_t*)(block+4), AV_RN32(pixels+4));\
712 pixels+=line_size;\
713 block +=line_size;\
714 }\
715 }\
716 static void OPNAME ## pixels16x16_c(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int rnd){\
717 int i;\
718 for(i=0; i<16; i++){\
719 OP4(*(uint32_t*)(block ), AV_RN32(pixels ));\
720 OP4(*(uint32_t*)(block+ 4), AV_RN32(pixels+ 4));\
721 OP4(*(uint32_t*)(block+ 8), AV_RN32(pixels+ 8));\
722 OP4(*(uint32_t*)(block+12), AV_RN32(pixels+12));\
723 pixels+=line_size;\
724 block +=line_size;\
725 }\
726 }
727
728 #define op_put(a, b) (a) = av_clip_uint8(b)
729 #define op_avg(a, b) (a) = ((a) + av_clip_uint8(b) + 1) >> 1
730 #define op4_avg(a, b) (a) = rnd_avg32(a, b)
731 #define op4_put(a, b) (a) = (b)
732
733
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154732696 VC1_MSPEL_MC(op_put, op4_put, put_)
734
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10545193 VC1_MSPEL_MC(op_avg, op4_avg, avg_)
735
736 /* pixel functions - really are entry points to vc1_mspel_mc */
737
738 #define PUT_VC1_MSPEL(a, b) \
739 static void put_vc1_mspel_mc ## a ## b ## _c(uint8_t *dst, \
740 const uint8_t *src, \
741 ptrdiff_t stride, int rnd) \
742 { \
743 put_vc1_mspel_mc(dst, src, stride, a, b, rnd); \
744 } \
745 static void avg_vc1_mspel_mc ## a ## b ## _c(uint8_t *dst, \
746 const uint8_t *src, \
747 ptrdiff_t stride, int rnd) \
748 { \
749 avg_vc1_mspel_mc(dst, src, stride, a, b, rnd); \
750 } \
751 static void put_vc1_mspel_mc ## a ## b ## _16_c(uint8_t *dst, \
752 const uint8_t *src, \
753 ptrdiff_t stride, int rnd) \
754 { \
755 put_vc1_mspel_mc_16(dst, src, stride, a, b, rnd); \
756 } \
757 static void avg_vc1_mspel_mc ## a ## b ## _16_c(uint8_t *dst, \
758 const uint8_t *src, \
759 ptrdiff_t stride, int rnd) \
760 { \
761 avg_vc1_mspel_mc_16(dst, src, stride, a, b, rnd); \
762 }
763
764 38252 PUT_VC1_MSPEL(1, 0)
765 23246 PUT_VC1_MSPEL(2, 0)
766 16635 PUT_VC1_MSPEL(3, 0)
767
768 40344 PUT_VC1_MSPEL(0, 1)
769 15728 PUT_VC1_MSPEL(1, 1)
770 27258 PUT_VC1_MSPEL(2, 1)
771 14439 PUT_VC1_MSPEL(3, 1)
772
773 92622 PUT_VC1_MSPEL(0, 2)
774 24148 PUT_VC1_MSPEL(1, 2)
775 46181 PUT_VC1_MSPEL(2, 2)
776 24741 PUT_VC1_MSPEL(3, 2)
777
778 37846 PUT_VC1_MSPEL(0, 3)
779 14982 PUT_VC1_MSPEL(1, 3)
780 25930 PUT_VC1_MSPEL(2, 3)
781 14156 PUT_VC1_MSPEL(3, 3)
782
783 #define chroma_mc(a) \
784 ((A * src[a] + B * src[a + 1] + \
785 C * src[stride + a] + D * src[stride + a + 1] + 32 - 4) >> 6)
786 243988 static void put_no_rnd_vc1_chroma_mc8_c(uint8_t *dst /* align 8 */,
787 uint8_t *src /* align 1 */,
788 ptrdiff_t stride, int h, int x, int y)
789 {
790 243988 const int A = (8 - x) * (8 - y);
791 243988 const int B = (x) * (8 - y);
792 243988 const int C = (8 - x) * (y);
793 243988 const int D = (x) * (y);
794 int i;
795
796 av_assert2(x < 8 && y < 8 && x >= 0 && y >= 0);
797
798
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2195892 for (i = 0; i < h; i++) {
799 1951904 dst[0] = chroma_mc(0);
800 1951904 dst[1] = chroma_mc(1);
801 1951904 dst[2] = chroma_mc(2);
802 1951904 dst[3] = chroma_mc(3);
803 1951904 dst[4] = chroma_mc(4);
804 1951904 dst[5] = chroma_mc(5);
805 1951904 dst[6] = chroma_mc(6);
806 1951904 dst[7] = chroma_mc(7);
807 1951904 dst += stride;
808 1951904 src += stride;
809 }
810 243988 }
811
812 86192 static void put_no_rnd_vc1_chroma_mc4_c(uint8_t *dst, uint8_t *src,
813 ptrdiff_t stride, int h, int x, int y)
814 {
815 86192 const int A = (8 - x) * (8 - y);
816 86192 const int B = (x) * (8 - y);
817 86192 const int C = (8 - x) * (y);
818 86192 const int D = (x) * (y);
819 int i;
820
821 av_assert2(x < 8 && y < 8 && x >= 0 && y >= 0);
822
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430960 for (i = 0; i < h; i++) {
824 344768 dst[0] = chroma_mc(0);
825 344768 dst[1] = chroma_mc(1);
826 344768 dst[2] = chroma_mc(2);
827 344768 dst[3] = chroma_mc(3);
828 344768 dst += stride;
829 344768 src += stride;
830 }
831 86192 }
832
833 #define avg2(a, b) (((a) + (b) + 1) >> 1)
834 21934 static void avg_no_rnd_vc1_chroma_mc8_c(uint8_t *dst /* align 8 */,
835 uint8_t *src /* align 1 */,
836 ptrdiff_t stride, int h, int x, int y)
837 {
838 21934 const int A = (8 - x) * (8 - y);
839 21934 const int B = (x) * (8 - y);
840 21934 const int C = (8 - x) * (y);
841 21934 const int D = (x) * (y);
842 int i;
843
844 av_assert2(x < 8 && y < 8 && x >= 0 && y >= 0);
845
846
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197406 for (i = 0; i < h; i++) {
847 175472 dst[0] = avg2(dst[0], chroma_mc(0));
848 175472 dst[1] = avg2(dst[1], chroma_mc(1));
849 175472 dst[2] = avg2(dst[2], chroma_mc(2));
850 175472 dst[3] = avg2(dst[3], chroma_mc(3));
851 175472 dst[4] = avg2(dst[4], chroma_mc(4));
852 175472 dst[5] = avg2(dst[5], chroma_mc(5));
853 175472 dst[6] = avg2(dst[6], chroma_mc(6));
854 175472 dst[7] = avg2(dst[7], chroma_mc(7));
855 175472 dst += stride;
856 175472 src += stride;
857 }
858 21934 }
859
860 18992 static void avg_no_rnd_vc1_chroma_mc4_c(uint8_t *dst /* align 8 */,
861 uint8_t *src /* align 1 */,
862 ptrdiff_t stride, int h, int x, int y)
863 {
864 18992 const int A = (8 - x) * (8 - y);
865 18992 const int B = ( x) * (8 - y);
866 18992 const int C = (8 - x) * ( y);
867 18992 const int D = ( x) * ( y);
868 int i;
869
870 av_assert2(x < 8 && y < 8 && x >= 0 && y >= 0);
871
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94960 for (i = 0; i < h; i++) {
873 75968 dst[0] = avg2(dst[0], chroma_mc(0));
874 75968 dst[1] = avg2(dst[1], chroma_mc(1));
875 75968 dst[2] = avg2(dst[2], chroma_mc(2));
876 75968 dst[3] = avg2(dst[3], chroma_mc(3));
877 75968 dst += stride;
878 75968 src += stride;
879 }
880 18992 }
881
882 #if CONFIG_WMV3IMAGE_DECODER || CONFIG_VC1IMAGE_DECODER
883
884 static void sprite_h_c(uint8_t *dst, const uint8_t *src, int offset,
885 int advance, int count)
886 {
887 while (count--) {
888 int a = src[(offset >> 16)];
889 int b = src[(offset >> 16) + 1];
890 *dst++ = a + ((b - a) * (offset & 0xFFFF) >> 16);
891 offset += advance;
892 }
893 }
894
895 static av_always_inline void sprite_v_template(uint8_t *dst,
896 const uint8_t *src1a,
897 const uint8_t *src1b,
898 int offset1,
899 int two_sprites,
900 const uint8_t *src2a,
901 const uint8_t *src2b,
902 int offset2,
903 int alpha, int scaled,
904 int width)
905 {
906 int a1, b1, a2, b2;
907 while (width--) {
908 a1 = *src1a++;
909 if (scaled) {
910 b1 = *src1b++;
911 a1 = a1 + ((b1 - a1) * offset1 >> 16);
912 }
913 if (two_sprites) {
914 a2 = *src2a++;
915 if (scaled > 1) {
916 b2 = *src2b++;
917 a2 = a2 + ((b2 - a2) * offset2 >> 16);
918 }
919 a1 = a1 + ((a2 - a1) * alpha >> 16);
920 }
921 *dst++ = a1;
922 }
923 }
924
925 static void sprite_v_single_c(uint8_t *dst, const uint8_t *src1a,
926 const uint8_t *src1b,
927 int offset, int width)
928 {
929 sprite_v_template(dst, src1a, src1b, offset, 0, NULL, NULL, 0, 0, 1, width);
930 }
931
932 static void sprite_v_double_noscale_c(uint8_t *dst, const uint8_t *src1a,
933 const uint8_t *src2a,
934 int alpha, int width)
935 {
936 sprite_v_template(dst, src1a, NULL, 0, 1, src2a, NULL, 0, alpha, 0, width);
937 }
938
939 static void sprite_v_double_onescale_c(uint8_t *dst,
940 const uint8_t *src1a,
941 const uint8_t *src1b,
942 int offset1,
943 const uint8_t *src2a,
944 int alpha, int width)
945 {
946 sprite_v_template(dst, src1a, src1b, offset1, 1, src2a, NULL, 0, alpha, 1,
947 width);
948 }
949
950 static void sprite_v_double_twoscale_c(uint8_t *dst,
951 const uint8_t *src1a,
952 const uint8_t *src1b,
953 int offset1,
954 const uint8_t *src2a,
955 const uint8_t *src2b,
956 int offset2,
957 int alpha,
958 int width)
959 {
960 sprite_v_template(dst, src1a, src1b, offset1, 1, src2a, src2b, offset2,
961 alpha, 2, width);
962 }
963
964 #endif /* CONFIG_WMV3IMAGE_DECODER || CONFIG_VC1IMAGE_DECODER */
965 #define FN_ASSIGN(X, Y) \
966 dsp->put_vc1_mspel_pixels_tab[1][X+4*Y] = put_vc1_mspel_mc##X##Y##_c; \
967 dsp->put_vc1_mspel_pixels_tab[0][X+4*Y] = put_vc1_mspel_mc##X##Y##_16_c; \
968 dsp->avg_vc1_mspel_pixels_tab[1][X+4*Y] = avg_vc1_mspel_mc##X##Y##_c; \
969 dsp->avg_vc1_mspel_pixels_tab[0][X+4*Y] = avg_vc1_mspel_mc##X##Y##_16_c
970
971 40 av_cold void ff_vc1dsp_init(VC1DSPContext *dsp)
972 {
973 40 dsp->vc1_inv_trans_8x8 = vc1_inv_trans_8x8_c;
974 40 dsp->vc1_inv_trans_4x8 = vc1_inv_trans_4x8_c;
975 40 dsp->vc1_inv_trans_8x4 = vc1_inv_trans_8x4_c;
976 40 dsp->vc1_inv_trans_4x4 = vc1_inv_trans_4x4_c;
977 40 dsp->vc1_inv_trans_8x8_dc = vc1_inv_trans_8x8_dc_c;
978 40 dsp->vc1_inv_trans_4x8_dc = vc1_inv_trans_4x8_dc_c;
979 40 dsp->vc1_inv_trans_8x4_dc = vc1_inv_trans_8x4_dc_c;
980 40 dsp->vc1_inv_trans_4x4_dc = vc1_inv_trans_4x4_dc_c;
981
982 40 dsp->vc1_h_overlap = vc1_h_overlap_c;
983 40 dsp->vc1_v_overlap = vc1_v_overlap_c;
984 40 dsp->vc1_h_s_overlap = vc1_h_s_overlap_c;
985 40 dsp->vc1_v_s_overlap = vc1_v_s_overlap_c;
986
987 40 dsp->vc1_v_loop_filter4 = vc1_v_loop_filter4_c;
988 40 dsp->vc1_h_loop_filter4 = vc1_h_loop_filter4_c;
989 40 dsp->vc1_v_loop_filter8 = vc1_v_loop_filter8_c;
990 40 dsp->vc1_h_loop_filter8 = vc1_h_loop_filter8_c;
991 40 dsp->vc1_v_loop_filter16 = vc1_v_loop_filter16_c;
992 40 dsp->vc1_h_loop_filter16 = vc1_h_loop_filter16_c;
993
994 40 dsp->put_vc1_mspel_pixels_tab[0][0] = put_pixels16x16_c;
995 40 dsp->avg_vc1_mspel_pixels_tab[0][0] = avg_pixels16x16_c;
996 40 dsp->put_vc1_mspel_pixels_tab[1][0] = put_pixels8x8_c;
997 40 dsp->avg_vc1_mspel_pixels_tab[1][0] = avg_pixels8x8_c;
998 40 FN_ASSIGN(0, 1);
999 40 FN_ASSIGN(0, 2);
1000 40 FN_ASSIGN(0, 3);
1001
1002 40 FN_ASSIGN(1, 0);
1003 40 FN_ASSIGN(1, 1);
1004 40 FN_ASSIGN(1, 2);
1005 40 FN_ASSIGN(1, 3);
1006
1007 40 FN_ASSIGN(2, 0);
1008 40 FN_ASSIGN(2, 1);
1009 40 FN_ASSIGN(2, 2);
1010 40 FN_ASSIGN(2, 3);
1011
1012 40 FN_ASSIGN(3, 0);
1013 40 FN_ASSIGN(3, 1);
1014 40 FN_ASSIGN(3, 2);
1015 40 FN_ASSIGN(3, 3);
1016
1017 40 dsp->put_no_rnd_vc1_chroma_pixels_tab[0] = put_no_rnd_vc1_chroma_mc8_c;
1018 40 dsp->avg_no_rnd_vc1_chroma_pixels_tab[0] = avg_no_rnd_vc1_chroma_mc8_c;
1019 40 dsp->put_no_rnd_vc1_chroma_pixels_tab[1] = put_no_rnd_vc1_chroma_mc4_c;
1020 40 dsp->avg_no_rnd_vc1_chroma_pixels_tab[1] = avg_no_rnd_vc1_chroma_mc4_c;
1021
1022 #if CONFIG_WMV3IMAGE_DECODER || CONFIG_VC1IMAGE_DECODER
1023 40 dsp->sprite_h = sprite_h_c;
1024 40 dsp->sprite_v_single = sprite_v_single_c;
1025 40 dsp->sprite_v_double_noscale = sprite_v_double_noscale_c;
1026 40 dsp->sprite_v_double_onescale = sprite_v_double_onescale_c;
1027 40 dsp->sprite_v_double_twoscale = sprite_v_double_twoscale_c;
1028 #endif /* CONFIG_WMV3IMAGE_DECODER || CONFIG_VC1IMAGE_DECODER */
1029
1030 40 dsp->startcode_find_candidate = ff_startcode_find_candidate_c;
1031
1032 if (ARCH_AARCH64)
1033 ff_vc1dsp_init_aarch64(dsp);
1034 if (ARCH_ARM)
1035 ff_vc1dsp_init_arm(dsp);
1036 if (ARCH_PPC)
1037 ff_vc1dsp_init_ppc(dsp);
1038 if (ARCH_X86)
1039 40 ff_vc1dsp_init_x86(dsp);
1040 if (ARCH_MIPS)
1041 ff_vc1dsp_init_mips(dsp);
1042 40 }
1043