Libav
vc1dsp.c
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1 /*
2  * VC-1 and WMV3 decoder - DSP functions
3  * Copyright (c) 2006 Konstantin Shishkov
4  *
5  * This file is part of Libav.
6  *
7  * Libav 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  * Libav 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 Libav; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
28 #include "libavutil/common.h"
29 #include "h264chroma.h"
30 #include "vc1dsp.h"
31 
32 /* Apply overlap transform to horizontal edge */
33 static void vc1_v_overlap_c(uint8_t *src, int stride)
34 {
35  int i;
36  int a, b, c, d;
37  int d1, d2;
38  int rnd = 1;
39  for (i = 0; i < 8; i++) {
40  a = src[-2 * stride];
41  b = src[-stride];
42  c = src[0];
43  d = src[stride];
44  d1 = (a - d + 3 + rnd) >> 3;
45  d2 = (a - d + b - c + 4 - rnd) >> 3;
46 
47  src[-2 * stride] = a - d1;
48  src[-stride] = av_clip_uint8(b - d2);
49  src[0] = av_clip_uint8(c + d2);
50  src[stride] = d + d1;
51  src++;
52  rnd = !rnd;
53  }
54 }
55 
56 /* Apply overlap transform to vertical edge */
57 static void vc1_h_overlap_c(uint8_t *src, int stride)
58 {
59  int i;
60  int a, b, c, d;
61  int d1, d2;
62  int rnd = 1;
63  for (i = 0; i < 8; i++) {
64  a = src[-2];
65  b = src[-1];
66  c = src[0];
67  d = src[1];
68  d1 = (a - d + 3 + rnd) >> 3;
69  d2 = (a - d + b - c + 4 - rnd) >> 3;
70 
71  src[-2] = a - d1;
72  src[-1] = av_clip_uint8(b - d2);
73  src[0] = av_clip_uint8(c + d2);
74  src[1] = d + d1;
75  src += stride;
76  rnd = !rnd;
77  }
78 }
79 
80 static void vc1_v_s_overlap_c(int16_t *top, int16_t *bottom)
81 {
82  int i;
83  int a, b, c, d;
84  int d1, d2;
85  int rnd1 = 4, rnd2 = 3;
86  for (i = 0; i < 8; i++) {
87  a = top[48];
88  b = top[56];
89  c = bottom[0];
90  d = bottom[8];
91  d1 = a - d;
92  d2 = a - d + b - c;
93 
94  top[48] = ((a << 3) - d1 + rnd1) >> 3;
95  top[56] = ((b << 3) - d2 + rnd2) >> 3;
96  bottom[0] = ((c << 3) + d2 + rnd1) >> 3;
97  bottom[8] = ((d << 3) + d1 + rnd2) >> 3;
98 
99  bottom++;
100  top++;
101  rnd2 = 7 - rnd2;
102  rnd1 = 7 - rnd1;
103  }
104 }
105 
106 static void vc1_h_s_overlap_c(int16_t *left, int16_t *right)
107 {
108  int i;
109  int a, b, c, d;
110  int d1, d2;
111  int rnd1 = 4, rnd2 = 3;
112  for (i = 0; i < 8; i++) {
113  a = left[6];
114  b = left[7];
115  c = right[0];
116  d = right[1];
117  d1 = a - d;
118  d2 = a - d + b - c;
119 
120  left[6] = ((a << 3) - d1 + rnd1) >> 3;
121  left[7] = ((b << 3) - d2 + rnd2) >> 3;
122  right[0] = ((c << 3) + d2 + rnd1) >> 3;
123  right[1] = ((d << 3) + d1 + rnd2) >> 3;
124 
125  right += 8;
126  left += 8;
127  rnd2 = 7 - rnd2;
128  rnd1 = 7 - rnd1;
129  }
130 }
131 
140 static av_always_inline int vc1_filter_line(uint8_t *src, int stride, int pq)
141 {
142  int a0 = (2 * (src[-2 * stride] - src[1 * stride]) -
143  5 * (src[-1 * stride] - src[0 * stride]) + 4) >> 3;
144  int a0_sign = a0 >> 31; /* Store sign */
145 
146  a0 = (a0 ^ a0_sign) - a0_sign; /* a0 = FFABS(a0); */
147  if (a0 < pq) {
148  int a1 = FFABS((2 * (src[-4 * stride] - src[-1 * stride]) -
149  5 * (src[-3 * stride] - src[-2 * stride]) + 4) >> 3);
150  int a2 = FFABS((2 * (src[ 0 * stride] - src[ 3 * stride]) -
151  5 * (src[ 1 * stride] - src[ 2 * stride]) + 4) >> 3);
152  if (a1 < a0 || a2 < a0) {
153  int clip = src[-1 * stride] - src[0 * stride];
154  int clip_sign = clip >> 31;
155 
156  clip = ((clip ^ clip_sign) - clip_sign) >> 1;
157  if (clip) {
158  int a3 = FFMIN(a1, a2);
159  int d = 5 * (a3 - a0);
160  int d_sign = (d >> 31);
161 
162  d = ((d ^ d_sign) - d_sign) >> 3;
163  d_sign ^= a0_sign;
164 
165  if (d_sign ^ clip_sign)
166  d = 0;
167  else {
168  d = FFMIN(d, clip);
169  d = (d ^ d_sign) - d_sign; /* Restore sign */
170  src[-1 * stride] = av_clip_uint8(src[-1 * stride] - d);
171  src[ 0 * stride] = av_clip_uint8(src[ 0 * stride] + d);
172  }
173  return 1;
174  }
175  }
176  }
177  return 0;
178 }
179 
189 static inline void vc1_loop_filter(uint8_t *src, int step, int stride,
190  int len, int pq)
191 {
192  int i;
193  int filt3;
194 
195  for (i = 0; i < len; i += 4) {
196  filt3 = vc1_filter_line(src + 2 * step, stride, pq);
197  if (filt3) {
198  vc1_filter_line(src + 0 * step, stride, pq);
199  vc1_filter_line(src + 1 * step, stride, pq);
200  vc1_filter_line(src + 3 * step, stride, pq);
201  }
202  src += step * 4;
203  }
204 }
205 
206 static void vc1_v_loop_filter4_c(uint8_t *src, int stride, int pq)
207 {
208  vc1_loop_filter(src, 1, stride, 4, pq);
209 }
210 
211 static void vc1_h_loop_filter4_c(uint8_t *src, int stride, int pq)
212 {
213  vc1_loop_filter(src, stride, 1, 4, pq);
214 }
215 
216 static void vc1_v_loop_filter8_c(uint8_t *src, int stride, int pq)
217 {
218  vc1_loop_filter(src, 1, stride, 8, pq);
219 }
220 
221 static void vc1_h_loop_filter8_c(uint8_t *src, int stride, int pq)
222 {
223  vc1_loop_filter(src, stride, 1, 8, pq);
224 }
225 
226 static void vc1_v_loop_filter16_c(uint8_t *src, int stride, int pq)
227 {
228  vc1_loop_filter(src, 1, stride, 16, pq);
229 }
230 
231 static void vc1_h_loop_filter16_c(uint8_t *src, int stride, int pq)
232 {
233  vc1_loop_filter(src, stride, 1, 16, pq);
234 }
235 
236 /* Do inverse transform on 8x8 block */
237 static void vc1_inv_trans_8x8_dc_c(uint8_t *dest, int linesize, int16_t *block)
238 {
239  int i;
240  int dc = block[0];
241 
242  dc = (3 * dc + 1) >> 1;
243  dc = (3 * dc + 16) >> 5;
244 
245  for (i = 0; i < 8; i++) {
246  dest[0] = av_clip_uint8(dest[0] + dc);
247  dest[1] = av_clip_uint8(dest[1] + dc);
248  dest[2] = av_clip_uint8(dest[2] + dc);
249  dest[3] = av_clip_uint8(dest[3] + dc);
250  dest[4] = av_clip_uint8(dest[4] + dc);
251  dest[5] = av_clip_uint8(dest[5] + dc);
252  dest[6] = av_clip_uint8(dest[6] + dc);
253  dest[7] = av_clip_uint8(dest[7] + dc);
254  dest += linesize;
255  }
256 }
257 
258 static void vc1_inv_trans_8x8_c(int16_t block[64])
259 {
260  int i;
261  register int t1, t2, t3, t4, t5, t6, t7, t8;
262  int16_t *src, *dst, temp[64];
263 
264  src = block;
265  dst = temp;
266  for (i = 0; i < 8; i++) {
267  t1 = 12 * (src[ 0] + src[32]) + 4;
268  t2 = 12 * (src[ 0] - src[32]) + 4;
269  t3 = 16 * src[16] + 6 * src[48];
270  t4 = 6 * src[16] - 16 * src[48];
271 
272  t5 = t1 + t3;
273  t6 = t2 + t4;
274  t7 = t2 - t4;
275  t8 = t1 - t3;
276 
277  t1 = 16 * src[ 8] + 15 * src[24] + 9 * src[40] + 4 * src[56];
278  t2 = 15 * src[ 8] - 4 * src[24] - 16 * src[40] - 9 * src[56];
279  t3 = 9 * src[ 8] - 16 * src[24] + 4 * src[40] + 15 * src[56];
280  t4 = 4 * src[ 8] - 9 * src[24] + 15 * src[40] - 16 * src[56];
281 
282  dst[0] = (t5 + t1) >> 3;
283  dst[1] = (t6 + t2) >> 3;
284  dst[2] = (t7 + t3) >> 3;
285  dst[3] = (t8 + t4) >> 3;
286  dst[4] = (t8 - t4) >> 3;
287  dst[5] = (t7 - t3) >> 3;
288  dst[6] = (t6 - t2) >> 3;
289  dst[7] = (t5 - t1) >> 3;
290 
291  src += 1;
292  dst += 8;
293  }
294 
295  src = temp;
296  dst = block;
297  for (i = 0; i < 8; i++) {
298  t1 = 12 * (src[ 0] + src[32]) + 64;
299  t2 = 12 * (src[ 0] - src[32]) + 64;
300  t3 = 16 * src[16] + 6 * src[48];
301  t4 = 6 * src[16] - 16 * src[48];
302 
303  t5 = t1 + t3;
304  t6 = t2 + t4;
305  t7 = t2 - t4;
306  t8 = t1 - t3;
307 
308  t1 = 16 * src[ 8] + 15 * src[24] + 9 * src[40] + 4 * src[56];
309  t2 = 15 * src[ 8] - 4 * src[24] - 16 * src[40] - 9 * src[56];
310  t3 = 9 * src[ 8] - 16 * src[24] + 4 * src[40] + 15 * src[56];
311  t4 = 4 * src[ 8] - 9 * src[24] + 15 * src[40] - 16 * src[56];
312 
313  dst[ 0] = (t5 + t1) >> 7;
314  dst[ 8] = (t6 + t2) >> 7;
315  dst[16] = (t7 + t3) >> 7;
316  dst[24] = (t8 + t4) >> 7;
317  dst[32] = (t8 - t4 + 1) >> 7;
318  dst[40] = (t7 - t3 + 1) >> 7;
319  dst[48] = (t6 - t2 + 1) >> 7;
320  dst[56] = (t5 - t1 + 1) >> 7;
321 
322  src++;
323  dst++;
324  }
325 }
326 
327 /* Do inverse transform on 8x4 part of block */
328 static void vc1_inv_trans_8x4_dc_c(uint8_t *dest, int linesize, int16_t *block)
329 {
330  int i;
331  int dc = block[0];
332 
333  dc = (3 * dc + 1) >> 1;
334  dc = (17 * dc + 64) >> 7;
335 
336  for (i = 0; i < 4; i++) {
337  dest[0] = av_clip_uint8(dest[0] + dc);
338  dest[1] = av_clip_uint8(dest[1] + dc);
339  dest[2] = av_clip_uint8(dest[2] + dc);
340  dest[3] = av_clip_uint8(dest[3] + dc);
341  dest[4] = av_clip_uint8(dest[4] + dc);
342  dest[5] = av_clip_uint8(dest[5] + dc);
343  dest[6] = av_clip_uint8(dest[6] + dc);
344  dest[7] = av_clip_uint8(dest[7] + dc);
345  dest += linesize;
346  }
347 }
348 
349 static void vc1_inv_trans_8x4_c(uint8_t *dest, int linesize, int16_t *block)
350 {
351  int i;
352  register int t1, t2, t3, t4, t5, t6, t7, t8;
353  int16_t *src, *dst;
354 
355  src = block;
356  dst = block;
357 
358  for (i = 0; i < 4; i++) {
359  t1 = 12 * (src[0] + src[4]) + 4;
360  t2 = 12 * (src[0] - src[4]) + 4;
361  t3 = 16 * src[2] + 6 * src[6];
362  t4 = 6 * src[2] - 16 * src[6];
363 
364  t5 = t1 + t3;
365  t6 = t2 + t4;
366  t7 = t2 - t4;
367  t8 = t1 - t3;
368 
369  t1 = 16 * src[1] + 15 * src[3] + 9 * src[5] + 4 * src[7];
370  t2 = 15 * src[1] - 4 * src[3] - 16 * src[5] - 9 * src[7];
371  t3 = 9 * src[1] - 16 * src[3] + 4 * src[5] + 15 * src[7];
372  t4 = 4 * src[1] - 9 * src[3] + 15 * src[5] - 16 * src[7];
373 
374  dst[0] = (t5 + t1) >> 3;
375  dst[1] = (t6 + t2) >> 3;
376  dst[2] = (t7 + t3) >> 3;
377  dst[3] = (t8 + t4) >> 3;
378  dst[4] = (t8 - t4) >> 3;
379  dst[5] = (t7 - t3) >> 3;
380  dst[6] = (t6 - t2) >> 3;
381  dst[7] = (t5 - t1) >> 3;
382 
383  src += 8;
384  dst += 8;
385  }
386 
387  src = block;
388  for (i = 0; i < 8; i++) {
389  t1 = 17 * (src[ 0] + src[16]) + 64;
390  t2 = 17 * (src[ 0] - src[16]) + 64;
391  t3 = 22 * src[ 8] + 10 * src[24];
392  t4 = 22 * src[24] - 10 * src[ 8];
393 
394  dest[0 * linesize] = av_clip_uint8(dest[0 * linesize] + ((t1 + t3) >> 7));
395  dest[1 * linesize] = av_clip_uint8(dest[1 * linesize] + ((t2 - t4) >> 7));
396  dest[2 * linesize] = av_clip_uint8(dest[2 * linesize] + ((t2 + t4) >> 7));
397  dest[3 * linesize] = av_clip_uint8(dest[3 * linesize] + ((t1 - t3) >> 7));
398 
399  src++;
400  dest++;
401  }
402 }
403 
404 /* Do inverse transform on 4x8 parts of block */
405 static void vc1_inv_trans_4x8_dc_c(uint8_t *dest, int linesize, int16_t *block)
406 {
407  int i;
408  int dc = block[0];
409 
410  dc = (17 * dc + 4) >> 3;
411  dc = (12 * dc + 64) >> 7;
412 
413  for (i = 0; i < 8; i++) {
414  dest[0] = av_clip_uint8(dest[0] + dc);
415  dest[1] = av_clip_uint8(dest[1] + dc);
416  dest[2] = av_clip_uint8(dest[2] + dc);
417  dest[3] = av_clip_uint8(dest[3] + dc);
418  dest += linesize;
419  }
420 }
421 
422 static void vc1_inv_trans_4x8_c(uint8_t *dest, int linesize, int16_t *block)
423 {
424  int i;
425  register int t1, t2, t3, t4, t5, t6, t7, t8;
426  int16_t *src, *dst;
427 
428  src = block;
429  dst = block;
430 
431  for (i = 0; i < 8; i++) {
432  t1 = 17 * (src[0] + src[2]) + 4;
433  t2 = 17 * (src[0] - src[2]) + 4;
434  t3 = 22 * src[1] + 10 * src[3];
435  t4 = 22 * src[3] - 10 * src[1];
436 
437  dst[0] = (t1 + t3) >> 3;
438  dst[1] = (t2 - t4) >> 3;
439  dst[2] = (t2 + t4) >> 3;
440  dst[3] = (t1 - t3) >> 3;
441 
442  src += 8;
443  dst += 8;
444  }
445 
446  src = block;
447  for (i = 0; i < 4; i++) {
448  t1 = 12 * (src[ 0] + src[32]) + 64;
449  t2 = 12 * (src[ 0] - src[32]) + 64;
450  t3 = 16 * src[16] + 6 * src[48];
451  t4 = 6 * src[16] - 16 * src[48];
452 
453  t5 = t1 + t3;
454  t6 = t2 + t4;
455  t7 = t2 - t4;
456  t8 = t1 - t3;
457 
458  t1 = 16 * src[ 8] + 15 * src[24] + 9 * src[40] + 4 * src[56];
459  t2 = 15 * src[ 8] - 4 * src[24] - 16 * src[40] - 9 * src[56];
460  t3 = 9 * src[ 8] - 16 * src[24] + 4 * src[40] + 15 * src[56];
461  t4 = 4 * src[ 8] - 9 * src[24] + 15 * src[40] - 16 * src[56];
462 
463  dest[0 * linesize] = av_clip_uint8(dest[0 * linesize] + ((t5 + t1) >> 7));
464  dest[1 * linesize] = av_clip_uint8(dest[1 * linesize] + ((t6 + t2) >> 7));
465  dest[2 * linesize] = av_clip_uint8(dest[2 * linesize] + ((t7 + t3) >> 7));
466  dest[3 * linesize] = av_clip_uint8(dest[3 * linesize] + ((t8 + t4) >> 7));
467  dest[4 * linesize] = av_clip_uint8(dest[4 * linesize] + ((t8 - t4 + 1) >> 7));
468  dest[5 * linesize] = av_clip_uint8(dest[5 * linesize] + ((t7 - t3 + 1) >> 7));
469  dest[6 * linesize] = av_clip_uint8(dest[6 * linesize] + ((t6 - t2 + 1) >> 7));
470  dest[7 * linesize] = av_clip_uint8(dest[7 * linesize] + ((t5 - t1 + 1) >> 7));
471 
472  src++;
473  dest++;
474  }
475 }
476 
477 /* Do inverse transform on 4x4 part of block */
478 static void vc1_inv_trans_4x4_dc_c(uint8_t *dest, int linesize, int16_t *block)
479 {
480  int i;
481  int dc = block[0];
482 
483  dc = (17 * dc + 4) >> 3;
484  dc = (17 * dc + 64) >> 7;
485 
486  for (i = 0; i < 4; i++) {
487  dest[0] = av_clip_uint8(dest[0] + dc);
488  dest[1] = av_clip_uint8(dest[1] + dc);
489  dest[2] = av_clip_uint8(dest[2] + dc);
490  dest[3] = av_clip_uint8(dest[3] + dc);
491  dest += linesize;
492  }
493 }
494 
495 static void vc1_inv_trans_4x4_c(uint8_t *dest, int linesize, int16_t *block)
496 {
497  int i;
498  register int t1, t2, t3, t4;
499  int16_t *src, *dst;
500 
501  src = block;
502  dst = block;
503  for (i = 0; i < 4; i++) {
504  t1 = 17 * (src[0] + src[2]) + 4;
505  t2 = 17 * (src[0] - src[2]) + 4;
506  t3 = 22 * src[1] + 10 * src[3];
507  t4 = 22 * src[3] - 10 * src[1];
508 
509  dst[0] = (t1 + t3) >> 3;
510  dst[1] = (t2 - t4) >> 3;
511  dst[2] = (t2 + t4) >> 3;
512  dst[3] = (t1 - t3) >> 3;
513 
514  src += 8;
515  dst += 8;
516  }
517 
518  src = block;
519  for (i = 0; i < 4; i++) {
520  t1 = 17 * (src[0] + src[16]) + 64;
521  t2 = 17 * (src[0] - src[16]) + 64;
522  t3 = 22 * src[8] + 10 * src[24];
523  t4 = 22 * src[24] - 10 * src[8];
524 
525  dest[0 * linesize] = av_clip_uint8(dest[0 * linesize] + ((t1 + t3) >> 7));
526  dest[1 * linesize] = av_clip_uint8(dest[1 * linesize] + ((t2 - t4) >> 7));
527  dest[2 * linesize] = av_clip_uint8(dest[2 * linesize] + ((t2 + t4) >> 7));
528  dest[3 * linesize] = av_clip_uint8(dest[3 * linesize] + ((t1 - t3) >> 7));
529 
530  src++;
531  dest++;
532  }
533 }
534 
535 /* motion compensation functions */
536 
537 /* Filter in case of 2 filters */
538 #define VC1_MSPEL_FILTER_16B(DIR, TYPE) \
539 static av_always_inline int vc1_mspel_ ## DIR ## _filter_16bits(const TYPE *src, \
540  int stride, \
541  int mode) \
542 { \
543  switch(mode) { \
544  case 0: /* no shift - should not occur */ \
545  return 0; \
546  case 1: /* 1/4 shift */ \
547  return -4 * src[-stride] + 53 * src[0] + \
548  18 * src[stride] - 3 * src[stride * 2]; \
549  case 2: /* 1/2 shift */ \
550  return -1 * src[-stride] + 9 * src[0] + \
551  9 * src[stride] - 1 * src[stride * 2]; \
552  case 3: /* 3/4 shift */ \
553  return -3 * src[-stride] + 18 * src[0] + \
554  53 * src[stride] - 4 * src[stride * 2]; \
555  } \
556  return 0; /* should not occur */ \
557 }
558 
560 VC1_MSPEL_FILTER_16B(hor, int16_t)
561 
562 /* Filter used to interpolate fractional pel values */
563 static av_always_inline int vc1_mspel_filter(const uint8_t *src, int stride,
564  int mode, int r)
565 {
566  switch (mode) {
567  case 0: // no shift
568  return src[0];
569  case 1: // 1/4 shift
570  return (-4 * src[-stride] + 53 * src[0] +
571  18 * src[stride] - 3 * src[stride * 2] + 32 - r) >> 6;
572  case 2: // 1/2 shift
573  return (-1 * src[-stride] + 9 * src[0] +
574  9 * src[stride] - 1 * src[stride * 2] + 8 - r) >> 4;
575  case 3: // 3/4 shift
576  return (-3 * src[-stride] + 18 * src[0] +
577  53 * src[stride] - 4 * src[stride * 2] + 32 - r) >> 6;
578  }
579  return 0; // should not occur
580 }
581 
582 /* Function used to do motion compensation with bicubic interpolation */
583 #define VC1_MSPEL_MC(OP, OPNAME) \
584 static av_always_inline void OPNAME ## vc1_mspel_mc(uint8_t *dst, \
585  const uint8_t *src, \
586  int stride, \
587  int hmode, \
588  int vmode, \
589  int rnd) \
590 { \
591  int i, j; \
592  \
593  if (vmode) { /* Horizontal filter to apply */ \
594  int r; \
595  \
596  if (hmode) { /* Vertical filter to apply, output to tmp */ \
597  static const int shift_value[] = { 0, 5, 1, 5 }; \
598  int shift = (shift_value[hmode] + shift_value[vmode]) >> 1; \
599  int16_t tmp[11 * 8], *tptr = tmp; \
600  \
601  r = (1 << (shift - 1)) + rnd - 1; \
602  \
603  src -= 1; \
604  for (j = 0; j < 8; j++) { \
605  for (i = 0; i < 11; i++) \
606  tptr[i] = (vc1_mspel_ver_filter_16bits(src + i, stride, vmode) + r) >> shift; \
607  src += stride; \
608  tptr += 11; \
609  } \
610  \
611  r = 64 - rnd; \
612  tptr = tmp + 1; \
613  for (j = 0; j < 8; j++) { \
614  for (i = 0; i < 8; i++) \
615  OP(dst[i], (vc1_mspel_hor_filter_16bits(tptr + i, 1, hmode) + r) >> 7); \
616  dst += stride; \
617  tptr += 11; \
618  } \
619  \
620  return; \
621  } else { /* No horizontal filter, output 8 lines to dst */ \
622  r = 1 - rnd; \
623  \
624  for (j = 0; j < 8; j++) { \
625  for (i = 0; i < 8; i++) \
626  OP(dst[i], vc1_mspel_filter(src + i, stride, vmode, r)); \
627  src += stride; \
628  dst += stride; \
629  } \
630  return; \
631  } \
632  } \
633  \
634  /* Horizontal mode with no vertical mode */ \
635  for (j = 0; j < 8; j++) { \
636  for (i = 0; i < 8; i++) \
637  OP(dst[i], vc1_mspel_filter(src + i, 1, hmode, rnd)); \
638  dst += stride; \
639  src += stride; \
640  } \
641 }
642 
643 #define op_put(a, b) a = av_clip_uint8(b)
644 #define op_avg(a, b) a = (a + av_clip_uint8(b) + 1) >> 1
645 
646 VC1_MSPEL_MC(op_put, put_)
647 VC1_MSPEL_MC(op_avg, avg_)
648 
649 /* pixel functions - really are entry points to vc1_mspel_mc */
650 
651 #define PUT_VC1_MSPEL(a, b) \
652 static void put_vc1_mspel_mc ## a ## b ## _c(uint8_t *dst, \
653  const uint8_t *src, \
654  ptrdiff_t stride, int rnd) \
655 { \
656  put_vc1_mspel_mc(dst, src, stride, a, b, rnd); \
657 } \
658 static void avg_vc1_mspel_mc ## a ## b ## _c(uint8_t *dst, \
659  const uint8_t *src, \
660  ptrdiff_t stride, int rnd) \
661 { \
662  avg_vc1_mspel_mc(dst, src, stride, a, b, rnd); \
663 }
664 
665 PUT_VC1_MSPEL(1, 0)
666 PUT_VC1_MSPEL(2, 0)
667 PUT_VC1_MSPEL(3, 0)
668 
669 PUT_VC1_MSPEL(0, 1)
670 PUT_VC1_MSPEL(1, 1)
671 PUT_VC1_MSPEL(2, 1)
672 PUT_VC1_MSPEL(3, 1)
673 
674 PUT_VC1_MSPEL(0, 2)
675 PUT_VC1_MSPEL(1, 2)
676 PUT_VC1_MSPEL(2, 2)
677 PUT_VC1_MSPEL(3, 2)
678 
679 PUT_VC1_MSPEL(0, 3)
680 PUT_VC1_MSPEL(1, 3)
681 PUT_VC1_MSPEL(2, 3)
682 PUT_VC1_MSPEL(3, 3)
683 
684 #define chroma_mc(a) \
685  ((A * src[a] + B * src[a + 1] + \
686  C * src[stride + a] + D * src[stride + a + 1] + 32 - 4) >> 6)
687 static void put_no_rnd_vc1_chroma_mc8_c(uint8_t *dst /* align 8 */,
688  uint8_t *src /* align 1 */,
689  int stride, int h, int x, int y)
690 {
691  const int A = (8 - x) * (8 - y);
692  const int B = (x) * (8 - y);
693  const int C = (8 - x) * (y);
694  const int D = (x) * (y);
695  int i;
696 
697  assert(x < 8 && y < 8 && x >= 0 && y >= 0);
698 
699  for (i = 0; i < h; i++) {
700  dst[0] = chroma_mc(0);
701  dst[1] = chroma_mc(1);
702  dst[2] = chroma_mc(2);
703  dst[3] = chroma_mc(3);
704  dst[4] = chroma_mc(4);
705  dst[5] = chroma_mc(5);
706  dst[6] = chroma_mc(6);
707  dst[7] = chroma_mc(7);
708  dst += stride;
709  src += stride;
710  }
711 }
712 
714  int stride, int h, int x, int y)
715 {
716  const int A = (8 - x) * (8 - y);
717  const int B = (x) * (8 - y);
718  const int C = (8 - x) * (y);
719  const int D = (x) * (y);
720  int i;
721 
722  assert(x < 8 && y < 8 && x >= 0 && y >= 0);
723 
724  for (i = 0; i < h; i++) {
725  dst[0] = chroma_mc(0);
726  dst[1] = chroma_mc(1);
727  dst[2] = chroma_mc(2);
728  dst[3] = chroma_mc(3);
729  dst += stride;
730  src += stride;
731  }
732 }
733 
734 #define avg2(a, b) (((a) + (b) + 1) >> 1)
735 static void avg_no_rnd_vc1_chroma_mc8_c(uint8_t *dst /* align 8 */,
736  uint8_t *src /* align 1 */,
737  int stride, int h, int x, int y)
738 {
739  const int A = (8 - x) * (8 - y);
740  const int B = (x) * (8 - y);
741  const int C = (8 - x) * (y);
742  const int D = (x) * (y);
743  int i;
744 
745  assert(x < 8 && y < 8 && x >= 0 && y >= 0);
746 
747  for (i = 0; i < h; i++) {
748  dst[0] = avg2(dst[0], chroma_mc(0));
749  dst[1] = avg2(dst[1], chroma_mc(1));
750  dst[2] = avg2(dst[2], chroma_mc(2));
751  dst[3] = avg2(dst[3], chroma_mc(3));
752  dst[4] = avg2(dst[4], chroma_mc(4));
753  dst[5] = avg2(dst[5], chroma_mc(5));
754  dst[6] = avg2(dst[6], chroma_mc(6));
755  dst[7] = avg2(dst[7], chroma_mc(7));
756  dst += stride;
757  src += stride;
758  }
759 }
760 
761 static void avg_no_rnd_vc1_chroma_mc4_c(uint8_t *dst /* align 8 */,
762  uint8_t *src /* align 1 */,
763  int stride, int h, int x, int y)
764 {
765  const int A = (8 - x) * (8 - y);
766  const int B = ( x) * (8 - y);
767  const int C = (8 - x) * ( y);
768  const int D = ( x) * ( y);
769  int i;
770 
771  assert(x < 8 && y < 8 && x >= 0 && y >= 0);
772 
773  for (i = 0; i < h; i++) {
774  dst[0] = avg2(dst[0], chroma_mc(0));
775  dst[1] = avg2(dst[1], chroma_mc(1));
776  dst[2] = avg2(dst[2], chroma_mc(2));
777  dst[3] = avg2(dst[3], chroma_mc(3));
778  dst += stride;
779  src += stride;
780  }
781 }
782 
783 #if CONFIG_WMV3IMAGE_DECODER || CONFIG_VC1IMAGE_DECODER
784 
785 static void sprite_h_c(uint8_t *dst, const uint8_t *src, int offset,
786  int advance, int count)
787 {
788  while (count--) {
789  int a = src[(offset >> 16)];
790  int b = src[(offset >> 16) + 1];
791  *dst++ = a + ((b - a) * (offset & 0xFFFF) >> 16);
792  offset += advance;
793  }
794 }
795 
796 static av_always_inline void sprite_v_template(uint8_t *dst,
797  const uint8_t *src1a,
798  const uint8_t *src1b,
799  int offset1,
800  int two_sprites,
801  const uint8_t *src2a,
802  const uint8_t *src2b,
803  int offset2,
804  int alpha, int scaled,
805  int width)
806 {
807  int a1, b1, a2, b2;
808  while (width--) {
809  a1 = *src1a++;
810  if (scaled) {
811  b1 = *src1b++;
812  a1 = a1 + ((b1 - a1) * offset1 >> 16);
813  }
814  if (two_sprites) {
815  a2 = *src2a++;
816  if (scaled > 1) {
817  b2 = *src2b++;
818  a2 = a2 + ((b2 - a2) * offset2 >> 16);
819  }
820  a1 = a1 + ((a2 - a1) * alpha >> 16);
821  }
822  *dst++ = a1;
823  }
824 }
825 
826 static void sprite_v_single_c(uint8_t *dst, const uint8_t *src1a,
827  const uint8_t *src1b,
828  int offset, int width)
829 {
830  sprite_v_template(dst, src1a, src1b, offset, 0, NULL, NULL, 0, 0, 1, width);
831 }
832 
833 static void sprite_v_double_noscale_c(uint8_t *dst, const uint8_t *src1a,
834  const uint8_t *src2a,
835  int alpha, int width)
836 {
837  sprite_v_template(dst, src1a, NULL, 0, 1, src2a, NULL, 0, alpha, 0, width);
838 }
839 
840 static void sprite_v_double_onescale_c(uint8_t *dst,
841  const uint8_t *src1a,
842  const uint8_t *src1b,
843  int offset1,
844  const uint8_t *src2a,
845  int alpha, int width)
846 {
847  sprite_v_template(dst, src1a, src1b, offset1, 1, src2a, NULL, 0, alpha, 1,
848  width);
849 }
850 
851 static void sprite_v_double_twoscale_c(uint8_t *dst,
852  const uint8_t *src1a,
853  const uint8_t *src1b,
854  int offset1,
855  const uint8_t *src2a,
856  const uint8_t *src2b,
857  int offset2,
858  int alpha,
859  int width)
860 {
861  sprite_v_template(dst, src1a, src1b, offset1, 1, src2a, src2b, offset2,
862  alpha, 2, width);
863 }
864 
865 #endif /* CONFIG_WMV3IMAGE_DECODER || CONFIG_VC1IMAGE_DECODER */
866 
868 {
877 
882 
889 
891  dsp->put_vc1_mspel_pixels_tab[1] = put_vc1_mspel_mc10_c;
892  dsp->put_vc1_mspel_pixels_tab[2] = put_vc1_mspel_mc20_c;
893  dsp->put_vc1_mspel_pixels_tab[3] = put_vc1_mspel_mc30_c;
894  dsp->put_vc1_mspel_pixels_tab[4] = put_vc1_mspel_mc01_c;
895  dsp->put_vc1_mspel_pixels_tab[5] = put_vc1_mspel_mc11_c;
896  dsp->put_vc1_mspel_pixels_tab[6] = put_vc1_mspel_mc21_c;
897  dsp->put_vc1_mspel_pixels_tab[7] = put_vc1_mspel_mc31_c;
898  dsp->put_vc1_mspel_pixels_tab[8] = put_vc1_mspel_mc02_c;
899  dsp->put_vc1_mspel_pixels_tab[9] = put_vc1_mspel_mc12_c;
900  dsp->put_vc1_mspel_pixels_tab[10] = put_vc1_mspel_mc22_c;
901  dsp->put_vc1_mspel_pixels_tab[11] = put_vc1_mspel_mc32_c;
902  dsp->put_vc1_mspel_pixels_tab[12] = put_vc1_mspel_mc03_c;
903  dsp->put_vc1_mspel_pixels_tab[13] = put_vc1_mspel_mc13_c;
904  dsp->put_vc1_mspel_pixels_tab[14] = put_vc1_mspel_mc23_c;
905  dsp->put_vc1_mspel_pixels_tab[15] = put_vc1_mspel_mc33_c;
906 
908  dsp->avg_vc1_mspel_pixels_tab[1] = avg_vc1_mspel_mc10_c;
909  dsp->avg_vc1_mspel_pixels_tab[2] = avg_vc1_mspel_mc20_c;
910  dsp->avg_vc1_mspel_pixels_tab[3] = avg_vc1_mspel_mc30_c;
911  dsp->avg_vc1_mspel_pixels_tab[4] = avg_vc1_mspel_mc01_c;
912  dsp->avg_vc1_mspel_pixels_tab[5] = avg_vc1_mspel_mc11_c;
913  dsp->avg_vc1_mspel_pixels_tab[6] = avg_vc1_mspel_mc21_c;
914  dsp->avg_vc1_mspel_pixels_tab[7] = avg_vc1_mspel_mc31_c;
915  dsp->avg_vc1_mspel_pixels_tab[8] = avg_vc1_mspel_mc02_c;
916  dsp->avg_vc1_mspel_pixels_tab[9] = avg_vc1_mspel_mc12_c;
917  dsp->avg_vc1_mspel_pixels_tab[10] = avg_vc1_mspel_mc22_c;
918  dsp->avg_vc1_mspel_pixels_tab[11] = avg_vc1_mspel_mc32_c;
919  dsp->avg_vc1_mspel_pixels_tab[12] = avg_vc1_mspel_mc03_c;
920  dsp->avg_vc1_mspel_pixels_tab[13] = avg_vc1_mspel_mc13_c;
921  dsp->avg_vc1_mspel_pixels_tab[14] = avg_vc1_mspel_mc23_c;
922  dsp->avg_vc1_mspel_pixels_tab[15] = avg_vc1_mspel_mc33_c;
923 
928 
929 #if CONFIG_WMV3IMAGE_DECODER || CONFIG_VC1IMAGE_DECODER
930  dsp->sprite_h = sprite_h_c;
931  dsp->sprite_v_single = sprite_v_single_c;
932  dsp->sprite_v_double_noscale = sprite_v_double_noscale_c;
933  dsp->sprite_v_double_onescale = sprite_v_double_onescale_c;
934  dsp->sprite_v_double_twoscale = sprite_v_double_twoscale_c;
935 #endif /* CONFIG_WMV3IMAGE_DECODER || CONFIG_VC1IMAGE_DECODER */
936 
937  if (ARCH_AARCH64)
939  if (ARCH_ARM)
940  ff_vc1dsp_init_arm(dsp);
941  if (ARCH_PPC)
942  ff_vc1dsp_init_ppc(dsp);
943  if (ARCH_X86)
944  ff_vc1dsp_init_x86(dsp);
945 }
static void vc1_inv_trans_4x4_c(uint8_t *dest, int linesize, int16_t *block)
Definition: vc1dsp.c:495
op_pixels_func avg_vc1_mspel_pixels_tab[16]
Definition: vc1dsp.h:60
void(* vc1_h_overlap)(uint8_t *src, int stride)
Definition: vc1dsp.h:46
VC-1 and WMV3 decoder.
#define ARCH_ARM
Definition: config.h:14
static void vc1_inv_trans_4x8_dc_c(uint8_t *dest, int linesize, int16_t *block)
Definition: vc1dsp.c:405
void(* vc1_inv_trans_8x4)(uint8_t *dest, int line_size, int16_t *block)
Definition: vc1dsp.h:38
void(* vc1_inv_trans_4x8)(uint8_t *dest, int line_size, int16_t *block)
Definition: vc1dsp.h:39
static void vc1_inv_trans_8x8_dc_c(uint8_t *dest, int linesize, int16_t *block)
Definition: vc1dsp.c:237
static void put_no_rnd_vc1_chroma_mc4_c(uint8_t *dst, uint8_t *src, int stride, int h, int x, int y)
Definition: vc1dsp.c:713
#define B
Definition: dsputil.c:1836
static av_always_inline int vc1_filter_line(uint8_t *src, int stride, int pq)
VC-1 in-loop deblocking filter for one line.
Definition: vc1dsp.c:140
static void vc1_v_loop_filter16_c(uint8_t *src, int stride, int pq)
Definition: vc1dsp.c:226
static void vc1_v_loop_filter4_c(uint8_t *src, int stride, int pq)
Definition: vc1dsp.c:206
void(* sprite_v_double_onescale)(uint8_t *dst, const uint8_t *src1a, const uint8_t *src1b, int offset1, const uint8_t *src2a, int alpha, int width)
Definition: vc1dsp.h:70
#define ARCH_X86
Definition: config.h:33
int stride
Definition: mace.c:144
void(* vc1_v_loop_filter8)(uint8_t *src, int stride, int pq)
Definition: vc1dsp.h:51
#define VC1_MSPEL_FILTER_16B(DIR, TYPE)
Definition: vc1dsp.c:538
#define ARCH_AARCH64
Definition: config.h:12
uint8_t
#define av_cold
Definition: attributes.h:66
void(* vc1_v_loop_filter4)(uint8_t *src, int stride, int pq)
Definition: vc1dsp.h:49
static void vc1_h_loop_filter16_c(uint8_t *src, int stride, int pq)
Definition: vc1dsp.c:231
void(* sprite_v_double_twoscale)(uint8_t *dst, const uint8_t *src1a, const uint8_t *src1b, int offset1, const uint8_t *src2a, const uint8_t *src2b, int offset2, int alpha, int width)
Definition: vc1dsp.h:72
void(* vc1_inv_trans_8x8)(int16_t *b)
Definition: vc1dsp.h:37
#define op_avg(a, b)
Definition: vc1dsp.c:644
#define b
Definition: input.c:52
#define avg2(a, b)
Definition: vc1dsp.c:734
void(* vc1_inv_trans_8x4_dc)(uint8_t *dest, int line_size, int16_t *block)
Definition: vc1dsp.h:42
void(* vc1_h_loop_filter8)(uint8_t *src, int stride, int pq)
Definition: vc1dsp.h:52
void ff_avg_pixels8x8_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride)
Definition: dsputil.c:1272
#define r
Definition: input.c:51
static void avg_no_rnd_vc1_chroma_mc8_c(uint8_t *dst, uint8_t *src, int stride, int h, int x, int y)
Definition: vc1dsp.c:735
static void vc1_h_overlap_c(uint8_t *src, int stride)
Definition: vc1dsp.c:57
void(* vc1_inv_trans_8x8_dc)(uint8_t *dest, int line_size, int16_t *block)
Definition: vc1dsp.h:41
#define chroma_mc(a)
Definition: vc1dsp.c:684
static void put_no_rnd_vc1_chroma_mc8_c(uint8_t *dst, uint8_t *src, int stride, int h, int x, int y)
Definition: vc1dsp.c:687
void(* vc1_inv_trans_4x4)(uint8_t *dest, int line_size, int16_t *block)
Definition: vc1dsp.h:40
void(* vc1_v_loop_filter16)(uint8_t *src, int stride, int pq)
Definition: vc1dsp.h:53
#define op_put(a, b)
Definition: vc1dsp.c:643
void(* vc1_inv_trans_4x4_dc)(uint8_t *dest, int line_size, int16_t *block)
Definition: vc1dsp.h:44
static void vc1_loop_filter(uint8_t *src, int step, int stride, int len, int pq)
VC-1 in-loop deblocking filter.
Definition: vc1dsp.c:189
#define FFMIN(a, b)
Definition: common.h:57
static void vc1_inv_trans_8x8_c(int16_t block[64])
Definition: vc1dsp.c:258
void ff_vc1dsp_init_x86(VC1DSPContext *dsp)
Definition: vc1dsp_init.c:85
#define FFABS(a)
Definition: common.h:52
static void vc1_v_s_overlap_c(int16_t *top, int16_t *bottom)
Definition: vc1dsp.c:80
static void vc1_v_loop_filter8_c(uint8_t *src, int stride, int pq)
Definition: vc1dsp.c:216
av_cold void ff_vc1dsp_init_aarch64(VC1DSPContext *dsp)
Definition: vf_drawbox.c:37
h264_chroma_mc_func avg_no_rnd_vc1_chroma_pixels_tab[3]
Definition: vc1dsp.h:64
NULL
Definition: eval.c:55
static int width
Definition: utils.c:156
void(* vc1_h_loop_filter4)(uint8_t *src, int stride, int pq)
Definition: vc1dsp.h:50
#define PUT_VC1_MSPEL(a, b)
Definition: vc1dsp.c:651
#define VC1_MSPEL_MC(OP, OPNAME)
Definition: vc1dsp.c:583
void(* sprite_v_double_noscale)(uint8_t *dst, const uint8_t *src1a, const uint8_t *src2a, int alpha, int width)
Definition: vc1dsp.h:69
static void avg_no_rnd_vc1_chroma_mc4_c(uint8_t *dst, uint8_t *src, int stride, int h, int x, int y)
Definition: vc1dsp.c:761
static int step
Definition: avplay.c:247
static void vc1_h_s_overlap_c(int16_t *left, int16_t *right)
Definition: vc1dsp.c:106
#define D
Definition: options_table.h:39
static void vc1_v_overlap_c(uint8_t *src, int stride)
Definition: vc1dsp.c:33
#define ARCH_PPC
Definition: config.h:24
h264_chroma_mc_func put_no_rnd_vc1_chroma_pixels_tab[3]
Definition: vc1dsp.h:63
static void vc1_h_loop_filter8_c(uint8_t *src, int stride, int pq)
Definition: vc1dsp.c:221
common internal and external API header
static double clip(void *opaque, double val)
Clip value val in the minval - maxval range.
Definition: vf_lut.c:162
static void vc1_h_loop_filter4_c(uint8_t *src, int stride, int pq)
Definition: vc1dsp.c:211
void(* vc1_v_s_overlap)(int16_t *top, int16_t *bottom)
Definition: vc1dsp.h:47
static void vc1_inv_trans_8x4_c(uint8_t *dest, int linesize, int16_t *block)
Definition: vc1dsp.c:349
static av_always_inline int vc1_mspel_filter(const uint8_t *src, int stride, int mode, int r)
Definition: vc1dsp.c:563
int len
void(* sprite_v_single)(uint8_t *dst, const uint8_t *src1a, const uint8_t *src1b, int offset, int width)
Definition: vc1dsp.h:68
av_cold void ff_vc1dsp_init_arm(VC1DSPContext *dsp)
#define av_always_inline
Definition: attributes.h:40
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) returnNULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method!=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt)>2){ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc){av_free(ac);returnNULL;}returnac;}in_planar=av_sample_fmt_is_planar(in_fmt);out_planar=av_sample_fmt_is_planar(out_fmt);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_dlog(ac->avr,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> dc
static void vc1_inv_trans_8x4_dc_c(uint8_t *dest, int linesize, int16_t *block)
Definition: vc1dsp.c:328
void(* vc1_h_s_overlap)(int16_t *left, int16_t *right)
Definition: vc1dsp.h:48
av_cold void ff_vc1dsp_init_ppc(VC1DSPContext *dsp)
void ff_put_pixels8x8_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride)
Definition: dsputil.c:1268
void(* vc1_v_overlap)(uint8_t *src, int stride)
Definition: vc1dsp.h:45
av_cold void ff_vc1dsp_init(VC1DSPContext *dsp)
Definition: vc1dsp.c:867
static void vc1_inv_trans_4x4_dc_c(uint8_t *dest, int linesize, int16_t *block)
Definition: vc1dsp.c:478
void(* vc1_inv_trans_4x8_dc)(uint8_t *dest, int line_size, int16_t *block)
Definition: vc1dsp.h:43
op_pixels_func put_vc1_mspel_pixels_tab[16]
Definition: vc1dsp.h:59
void(* sprite_h)(uint8_t *dst, const uint8_t *src, int offset, int advance, int count)
Definition: vc1dsp.h:67
static void vc1_inv_trans_4x8_c(uint8_t *dest, int linesize, int16_t *block)
Definition: vc1dsp.c:422
void(* vc1_h_loop_filter16)(uint8_t *src, int stride, int pq)
Definition: vc1dsp.h:54
static int16_t block[64]
Definition: dct-test.c:170