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 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 
28 #include "libavutil/avassert.h"
29 #include "libavutil/common.h"
30 #include "h264chroma.h"
31 #include "rnd_avg.h"
32 #include "vc1dsp.h"
33 
34 
35 /** Apply overlap transform to horizontal edge
36 */
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 */
62 static void vc1_h_overlap_c(uint8_t* src, int stride)
63 {
64  int i;
65  int a, b, c, d;
66  int d1, d2;
67  int rnd = 1;
68  for(i = 0; i < 8; i++) {
69  a = src[-2];
70  b = src[-1];
71  c = src[0];
72  d = src[1];
73  d1 = (a - d + 3 + rnd) >> 3;
74  d2 = (a - d + b - c + 4 - rnd) >> 3;
75 
76  src[-2] = a - d1;
77  src[-1] = av_clip_uint8(b - d2);
78  src[0] = av_clip_uint8(c + d2);
79  src[1] = d + d1;
80  src += stride;
81  rnd = !rnd;
82  }
83 }
84 
85 static void vc1_v_s_overlap_c(int16_t *top, int16_t *bottom)
86 {
87  int i;
88  int a, b, c, d;
89  int d1, d2;
90  int rnd1 = 4, rnd2 = 3;
91  for(i = 0; i < 8; i++) {
92  a = top[48];
93  b = top[56];
94  c = bottom[0];
95  d = bottom[8];
96  d1 = a - d;
97  d2 = a - d + b - c;
98 
99  top[48] = ((a << 3) - d1 + rnd1) >> 3;
100  top[56] = ((b << 3) - d2 + rnd2) >> 3;
101  bottom[0] = ((c << 3) + d2 + rnd1) >> 3;
102  bottom[8] = ((d << 3) + d1 + rnd2) >> 3;
103 
104  bottom++;
105  top++;
106  rnd2 = 7 - rnd2;
107  rnd1 = 7 - rnd1;
108  }
109 }
110 
111 static void vc1_h_s_overlap_c(int16_t *left, int16_t *right)
112 {
113  int i;
114  int a, b, c, d;
115  int d1, d2;
116  int rnd1 = 4, rnd2 = 3;
117  for(i = 0; i < 8; i++) {
118  a = left[6];
119  b = left[7];
120  c = right[0];
121  d = right[1];
122  d1 = a - d;
123  d2 = a - d + b - c;
124 
125  left[6] = ((a << 3) - d1 + rnd1) >> 3;
126  left[7] = ((b << 3) - d2 + rnd2) >> 3;
127  right[0] = ((c << 3) + d2 + rnd1) >> 3;
128  right[1] = ((d << 3) + d1 + rnd2) >> 3;
129 
130  right += 8;
131  left += 8;
132  rnd2 = 7 - rnd2;
133  rnd1 = 7 - rnd1;
134  }
135 }
136 
137 /**
138  * VC-1 in-loop deblocking filter for one line
139  * @param src source block type
140  * @param stride block stride
141  * @param pq block quantizer
142  * @return whether other 3 pairs should be filtered or not
143  * @see 8.6
144  */
145 static av_always_inline int vc1_filter_line(uint8_t* src, int stride, int pq){
146  int a0 = (2*(src[-2*stride] - src[ 1*stride]) - 5*(src[-1*stride] - src[ 0*stride]) + 4) >> 3;
147  int a0_sign = a0 >> 31; /* Store sign */
148  a0 = (a0 ^ a0_sign) - a0_sign; /* a0 = FFABS(a0); */
149  if(a0 < pq){
150  int a1 = FFABS((2*(src[-4*stride] - src[-1*stride]) - 5*(src[-3*stride] - src[-2*stride]) + 4) >> 3);
151  int a2 = FFABS((2*(src[ 0*stride] - src[ 3*stride]) - 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  clip = ((clip ^ clip_sign) - clip_sign)>>1;
156  if(clip){
157  int a3 = FFMIN(a1, a2);
158  int d = 5 * (a3 - a0);
159  int d_sign = (d >> 31);
160  d = ((d ^ d_sign) - d_sign) >> 3;
161  d_sign ^= a0_sign;
162 
163  if( d_sign ^ clip_sign )
164  d = 0;
165  else{
166  d = FFMIN(d, clip);
167  d = (d ^ d_sign) - d_sign; /* Restore sign */
168  src[-1*stride] = av_clip_uint8(src[-1*stride] - d);
169  src[ 0*stride] = av_clip_uint8(src[ 0*stride] + d);
170  }
171  return 1;
172  }
173  }
174  }
175  return 0;
176 }
177 
178 /**
179  * VC-1 in-loop deblocking filter
180  * @param src source block type
181  * @param step distance between horizontally adjacent elements
182  * @param stride distance between vertically adjacent elements
183  * @param len edge length to filter (4 or 8 pixels)
184  * @param pq block quantizer
185  * @see 8.6
186  */
187 static inline void vc1_loop_filter(uint8_t* src, int step, int stride, int len, int pq)
188 {
189  int i;
190  int filt3;
191 
192  for(i = 0; i < len; i += 4){
193  filt3 = vc1_filter_line(src + 2*step, stride, pq);
194  if(filt3){
195  vc1_filter_line(src + 0*step, stride, pq);
196  vc1_filter_line(src + 1*step, stride, pq);
197  vc1_filter_line(src + 3*step, stride, pq);
198  }
199  src += step * 4;
200  }
201 }
202 
203 static void vc1_v_loop_filter4_c(uint8_t *src, int stride, int pq)
204 {
205  vc1_loop_filter(src, 1, stride, 4, pq);
206 }
207 
208 static void vc1_h_loop_filter4_c(uint8_t *src, int stride, int pq)
209 {
210  vc1_loop_filter(src, stride, 1, 4, pq);
211 }
212 
213 static void vc1_v_loop_filter8_c(uint8_t *src, int stride, int pq)
214 {
215  vc1_loop_filter(src, 1, stride, 8, pq);
216 }
217 
218 static void vc1_h_loop_filter8_c(uint8_t *src, int stride, int pq)
219 {
220  vc1_loop_filter(src, stride, 1, 8, pq);
221 }
222 
223 static void vc1_v_loop_filter16_c(uint8_t *src, int stride, int pq)
224 {
225  vc1_loop_filter(src, 1, stride, 16, pq);
226 }
227 
228 static void vc1_h_loop_filter16_c(uint8_t *src, int stride, int pq)
229 {
230  vc1_loop_filter(src, stride, 1, 16, pq);
231 }
232 
233 /** Do inverse transform on 8x8 block
234 */
235 static void vc1_inv_trans_8x8_dc_c(uint8_t *dest, int linesize, int16_t *block)
236 {
237  int i;
238  int dc = block[0];
239  dc = (3 * dc + 1) >> 1;
240  dc = (3 * dc + 16) >> 5;
241  for(i = 0; i < 8; i++){
242  dest[0] = av_clip_uint8(dest[0] + dc);
243  dest[1] = av_clip_uint8(dest[1] + dc);
244  dest[2] = av_clip_uint8(dest[2] + dc);
245  dest[3] = av_clip_uint8(dest[3] + dc);
246  dest[4] = av_clip_uint8(dest[4] + dc);
247  dest[5] = av_clip_uint8(dest[5] + dc);
248  dest[6] = av_clip_uint8(dest[6] + dc);
249  dest[7] = av_clip_uint8(dest[7] + dc);
250  dest += linesize;
251  }
252 }
253 
254 static void vc1_inv_trans_8x8_c(int16_t block[64])
255 {
256  int i;
257  register int t1,t2,t3,t4,t5,t6,t7,t8;
258  int16_t *src, *dst, temp[64];
259 
260  src = block;
261  dst = temp;
262  for(i = 0; i < 8; i++){
263  t1 = 12 * (src[ 0] + src[32]) + 4;
264  t2 = 12 * (src[ 0] - src[32]) + 4;
265  t3 = 16 * src[16] + 6 * src[48];
266  t4 = 6 * src[16] - 16 * src[48];
267 
268  t5 = t1 + t3;
269  t6 = t2 + t4;
270  t7 = t2 - t4;
271  t8 = t1 - t3;
272 
273  t1 = 16 * src[ 8] + 15 * src[24] + 9 * src[40] + 4 * src[56];
274  t2 = 15 * src[ 8] - 4 * src[24] - 16 * src[40] - 9 * src[56];
275  t3 = 9 * src[ 8] - 16 * src[24] + 4 * src[40] + 15 * src[56];
276  t4 = 4 * src[ 8] - 9 * src[24] + 15 * src[40] - 16 * src[56];
277 
278  dst[0] = (t5 + t1) >> 3;
279  dst[1] = (t6 + t2) >> 3;
280  dst[2] = (t7 + t3) >> 3;
281  dst[3] = (t8 + t4) >> 3;
282  dst[4] = (t8 - t4) >> 3;
283  dst[5] = (t7 - t3) >> 3;
284  dst[6] = (t6 - t2) >> 3;
285  dst[7] = (t5 - t1) >> 3;
286 
287  src += 1;
288  dst += 8;
289  }
290 
291  src = temp;
292  dst = block;
293  for(i = 0; i < 8; i++){
294  t1 = 12 * (src[ 0] + src[32]) + 64;
295  t2 = 12 * (src[ 0] - src[32]) + 64;
296  t3 = 16 * src[16] + 6 * src[48];
297  t4 = 6 * src[16] - 16 * src[48];
298 
299  t5 = t1 + t3;
300  t6 = t2 + t4;
301  t7 = t2 - t4;
302  t8 = t1 - t3;
303 
304  t1 = 16 * src[ 8] + 15 * src[24] + 9 * src[40] + 4 * src[56];
305  t2 = 15 * src[ 8] - 4 * src[24] - 16 * src[40] - 9 * src[56];
306  t3 = 9 * src[ 8] - 16 * src[24] + 4 * src[40] + 15 * src[56];
307  t4 = 4 * src[ 8] - 9 * src[24] + 15 * src[40] - 16 * src[56];
308 
309  dst[ 0] = (t5 + t1) >> 7;
310  dst[ 8] = (t6 + t2) >> 7;
311  dst[16] = (t7 + t3) >> 7;
312  dst[24] = (t8 + t4) >> 7;
313  dst[32] = (t8 - t4 + 1) >> 7;
314  dst[40] = (t7 - t3 + 1) >> 7;
315  dst[48] = (t6 - t2 + 1) >> 7;
316  dst[56] = (t5 - t1 + 1) >> 7;
317 
318  src++;
319  dst++;
320  }
321 }
322 
323 /** Do inverse transform on 8x4 part of block
324 */
325 static void vc1_inv_trans_8x4_dc_c(uint8_t *dest, int linesize, int16_t *block)
326 {
327  int i;
328  int dc = block[0];
329  dc = ( 3 * dc + 1) >> 1;
330  dc = (17 * dc + 64) >> 7;
331  for(i = 0; i < 4; i++){
332  dest[0] = av_clip_uint8(dest[0] + dc);
333  dest[1] = av_clip_uint8(dest[1] + dc);
334  dest[2] = av_clip_uint8(dest[2] + dc);
335  dest[3] = av_clip_uint8(dest[3] + dc);
336  dest[4] = av_clip_uint8(dest[4] + dc);
337  dest[5] = av_clip_uint8(dest[5] + dc);
338  dest[6] = av_clip_uint8(dest[6] + dc);
339  dest[7] = av_clip_uint8(dest[7] + dc);
340  dest += linesize;
341  }
342 }
343 
344 static void vc1_inv_trans_8x4_c(uint8_t *dest, int linesize, int16_t *block)
345 {
346  int i;
347  register int t1,t2,t3,t4,t5,t6,t7,t8;
348  int16_t *src, *dst;
349 
350  src = block;
351  dst = block;
352  for(i = 0; i < 4; i++){
353  t1 = 12 * (src[0] + src[4]) + 4;
354  t2 = 12 * (src[0] - src[4]) + 4;
355  t3 = 16 * src[2] + 6 * src[6];
356  t4 = 6 * src[2] - 16 * src[6];
357 
358  t5 = t1 + t3;
359  t6 = t2 + t4;
360  t7 = t2 - t4;
361  t8 = t1 - t3;
362 
363  t1 = 16 * src[1] + 15 * src[3] + 9 * src[5] + 4 * src[7];
364  t2 = 15 * src[1] - 4 * src[3] - 16 * src[5] - 9 * src[7];
365  t3 = 9 * src[1] - 16 * src[3] + 4 * src[5] + 15 * src[7];
366  t4 = 4 * src[1] - 9 * src[3] + 15 * src[5] - 16 * src[7];
367 
368  dst[0] = (t5 + t1) >> 3;
369  dst[1] = (t6 + t2) >> 3;
370  dst[2] = (t7 + t3) >> 3;
371  dst[3] = (t8 + t4) >> 3;
372  dst[4] = (t8 - t4) >> 3;
373  dst[5] = (t7 - t3) >> 3;
374  dst[6] = (t6 - t2) >> 3;
375  dst[7] = (t5 - t1) >> 3;
376 
377  src += 8;
378  dst += 8;
379  }
380 
381  src = block;
382  for(i = 0; i < 8; i++){
383  t1 = 17 * (src[ 0] + src[16]) + 64;
384  t2 = 17 * (src[ 0] - src[16]) + 64;
385  t3 = 22 * src[ 8] + 10 * src[24];
386  t4 = 22 * src[24] - 10 * src[ 8];
387 
388  dest[0*linesize] = av_clip_uint8(dest[0*linesize] + ((t1 + t3) >> 7));
389  dest[1*linesize] = av_clip_uint8(dest[1*linesize] + ((t2 - t4) >> 7));
390  dest[2*linesize] = av_clip_uint8(dest[2*linesize] + ((t2 + t4) >> 7));
391  dest[3*linesize] = av_clip_uint8(dest[3*linesize] + ((t1 - t3) >> 7));
392 
393  src ++;
394  dest++;
395  }
396 }
397 
398 /** Do inverse transform on 4x8 parts of block
399 */
400 static void vc1_inv_trans_4x8_dc_c(uint8_t *dest, int linesize, int16_t *block)
401 {
402  int i;
403  int dc = block[0];
404  dc = (17 * dc + 4) >> 3;
405  dc = (12 * dc + 64) >> 7;
406  for(i = 0; i < 8; i++){
407  dest[0] = av_clip_uint8(dest[0] + dc);
408  dest[1] = av_clip_uint8(dest[1] + dc);
409  dest[2] = av_clip_uint8(dest[2] + dc);
410  dest[3] = av_clip_uint8(dest[3] + dc);
411  dest += linesize;
412  }
413 }
414 
415 static void vc1_inv_trans_4x8_c(uint8_t *dest, int linesize, int16_t *block)
416 {
417  int i;
418  register int t1,t2,t3,t4,t5,t6,t7,t8;
419  int16_t *src, *dst;
420 
421  src = block;
422  dst = block;
423  for(i = 0; i < 8; i++){
424  t1 = 17 * (src[0] + src[2]) + 4;
425  t2 = 17 * (src[0] - src[2]) + 4;
426  t3 = 22 * src[1] + 10 * src[3];
427  t4 = 22 * src[3] - 10 * src[1];
428 
429  dst[0] = (t1 + t3) >> 3;
430  dst[1] = (t2 - t4) >> 3;
431  dst[2] = (t2 + t4) >> 3;
432  dst[3] = (t1 - t3) >> 3;
433 
434  src += 8;
435  dst += 8;
436  }
437 
438  src = block;
439  for(i = 0; i < 4; i++){
440  t1 = 12 * (src[ 0] + src[32]) + 64;
441  t2 = 12 * (src[ 0] - src[32]) + 64;
442  t3 = 16 * src[16] + 6 * src[48];
443  t4 = 6 * src[16] - 16 * src[48];
444 
445  t5 = t1 + t3;
446  t6 = t2 + t4;
447  t7 = t2 - t4;
448  t8 = t1 - t3;
449 
450  t1 = 16 * src[ 8] + 15 * src[24] + 9 * src[40] + 4 * src[56];
451  t2 = 15 * src[ 8] - 4 * src[24] - 16 * src[40] - 9 * src[56];
452  t3 = 9 * src[ 8] - 16 * src[24] + 4 * src[40] + 15 * src[56];
453  t4 = 4 * src[ 8] - 9 * src[24] + 15 * src[40] - 16 * src[56];
454 
455  dest[0*linesize] = av_clip_uint8(dest[0*linesize] + ((t5 + t1) >> 7));
456  dest[1*linesize] = av_clip_uint8(dest[1*linesize] + ((t6 + t2) >> 7));
457  dest[2*linesize] = av_clip_uint8(dest[2*linesize] + ((t7 + t3) >> 7));
458  dest[3*linesize] = av_clip_uint8(dest[3*linesize] + ((t8 + t4) >> 7));
459  dest[4*linesize] = av_clip_uint8(dest[4*linesize] + ((t8 - t4 + 1) >> 7));
460  dest[5*linesize] = av_clip_uint8(dest[5*linesize] + ((t7 - t3 + 1) >> 7));
461  dest[6*linesize] = av_clip_uint8(dest[6*linesize] + ((t6 - t2 + 1) >> 7));
462  dest[7*linesize] = av_clip_uint8(dest[7*linesize] + ((t5 - t1 + 1) >> 7));
463 
464  src ++;
465  dest++;
466  }
467 }
468 
469 /** Do inverse transform on 4x4 part of block
470 */
471 static void vc1_inv_trans_4x4_dc_c(uint8_t *dest, int linesize, int16_t *block)
472 {
473  int i;
474  int dc = block[0];
475  dc = (17 * dc + 4) >> 3;
476  dc = (17 * dc + 64) >> 7;
477  for(i = 0; i < 4; i++){
478  dest[0] = av_clip_uint8(dest[0] + dc);
479  dest[1] = av_clip_uint8(dest[1] + dc);
480  dest[2] = av_clip_uint8(dest[2] + dc);
481  dest[3] = av_clip_uint8(dest[3] + dc);
482  dest += linesize;
483  }
484 }
485 
486 static void vc1_inv_trans_4x4_c(uint8_t *dest, int linesize, int16_t *block)
487 {
488  int i;
489  register int t1,t2,t3,t4;
490  int16_t *src, *dst;
491 
492  src = block;
493  dst = block;
494  for(i = 0; i < 4; i++){
495  t1 = 17 * (src[0] + src[2]) + 4;
496  t2 = 17 * (src[0] - src[2]) + 4;
497  t3 = 22 * src[1] + 10 * src[3];
498  t4 = 22 * src[3] - 10 * src[1];
499 
500  dst[0] = (t1 + t3) >> 3;
501  dst[1] = (t2 - t4) >> 3;
502  dst[2] = (t2 + t4) >> 3;
503  dst[3] = (t1 - t3) >> 3;
504 
505  src += 8;
506  dst += 8;
507  }
508 
509  src = block;
510  for(i = 0; i < 4; i++){
511  t1 = 17 * (src[ 0] + src[16]) + 64;
512  t2 = 17 * (src[ 0] - src[16]) + 64;
513  t3 = 22 * src[ 8] + 10 * src[24];
514  t4 = 22 * src[24] - 10 * src[ 8];
515 
516  dest[0*linesize] = av_clip_uint8(dest[0*linesize] + ((t1 + t3) >> 7));
517  dest[1*linesize] = av_clip_uint8(dest[1*linesize] + ((t2 - t4) >> 7));
518  dest[2*linesize] = av_clip_uint8(dest[2*linesize] + ((t2 + t4) >> 7));
519  dest[3*linesize] = av_clip_uint8(dest[3*linesize] + ((t1 - t3) >> 7));
520 
521  src ++;
522  dest++;
523  }
524 }
525 
526 /* motion compensation functions */
527 /** Filter in case of 2 filters */
528 #define VC1_MSPEL_FILTER_16B(DIR, TYPE) \
529 static av_always_inline int vc1_mspel_ ## DIR ## _filter_16bits(const TYPE *src, int stride, int mode) \
530 { \
531  switch(mode){ \
532  case 0: /* no shift - should not occur */ \
533  return 0; \
534  case 1: /* 1/4 shift */ \
535  return -4*src[-stride] + 53*src[0] + 18*src[stride] - 3*src[stride*2]; \
536  case 2: /* 1/2 shift */ \
537  return -src[-stride] + 9*src[0] + 9*src[stride] - src[stride*2]; \
538  case 3: /* 3/4 shift */ \
539  return -3*src[-stride] + 18*src[0] + 53*src[stride] - 4*src[stride*2]; \
540  } \
541  return 0; /* should not occur */ \
542 }
543 
544 VC1_MSPEL_FILTER_16B(ver, uint8_t)
545 VC1_MSPEL_FILTER_16B(hor, int16_t)
546 
547 
548 /** Filter used to interpolate fractional pel values
549  */
550 static av_always_inline int vc1_mspel_filter(const uint8_t *src, int stride, int mode, int r)
551 {
552  switch(mode){
553  case 0: //no shift
554  return src[0];
555  case 1: // 1/4 shift
556  return (-4*src[-stride] + 53*src[0] + 18*src[stride] - 3*src[stride*2] + 32 - r) >> 6;
557  case 2: // 1/2 shift
558  return (-src[-stride] + 9*src[0] + 9*src[stride] - src[stride*2] + 8 - r) >> 4;
559  case 3: // 3/4 shift
560  return (-3*src[-stride] + 18*src[0] + 53*src[stride] - 4*src[stride*2] + 32 - r) >> 6;
561  }
562  return 0; //should not occur
563 }
564 
565 /** Function used to do motion compensation with bicubic interpolation
566  */
567 #define VC1_MSPEL_MC(OP, OP4, OPNAME)\
568 static av_always_inline void OPNAME ## vc1_mspel_mc(uint8_t *dst, const uint8_t *src, ptrdiff_t stride, int hmode, int vmode, int rnd)\
569 {\
570  int i, j;\
571 \
572  if (vmode) { /* Horizontal filter to apply */\
573  int r;\
574 \
575  if (hmode) { /* Vertical filter to apply, output to tmp */\
576  static const int shift_value[] = { 0, 5, 1, 5 };\
577  int shift = (shift_value[hmode]+shift_value[vmode])>>1;\
578  int16_t tmp[11*8], *tptr = tmp;\
579 \
580  r = (1<<(shift-1)) + rnd-1;\
581 \
582  src -= 1;\
583  for(j = 0; j < 8; j++) {\
584  for(i = 0; i < 11; i++)\
585  tptr[i] = (vc1_mspel_ver_filter_16bits(src + i, stride, vmode)+r)>>shift;\
586  src += stride;\
587  tptr += 11;\
588  }\
589 \
590  r = 64-rnd;\
591  tptr = tmp+1;\
592  for(j = 0; j < 8; j++) {\
593  for(i = 0; i < 8; i++)\
594  OP(dst[i], (vc1_mspel_hor_filter_16bits(tptr + i, 1, hmode)+r)>>7);\
595  dst += stride;\
596  tptr += 11;\
597  }\
598 \
599  return;\
600  }\
601  else { /* No horizontal filter, output 8 lines to dst */\
602  r = 1-rnd;\
603 \
604  for(j = 0; j < 8; j++) {\
605  for(i = 0; i < 8; i++)\
606  OP(dst[i], vc1_mspel_filter(src + i, stride, vmode, r));\
607  src += stride;\
608  dst += stride;\
609  }\
610  return;\
611  }\
612  }\
613 \
614  /* Horizontal mode with no vertical mode */\
615  for(j = 0; j < 8; j++) {\
616  for(i = 0; i < 8; i++)\
617  OP(dst[i], vc1_mspel_filter(src + i, 1, hmode, rnd));\
618  dst += stride;\
619  src += stride;\
620  }\
621 }\
622 static void OPNAME ## pixels8x8_c(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int rnd){\
623  int i;\
624  for(i=0; i<8; i++){\
625  OP4(*(uint32_t*)(block ), AV_RN32(pixels ));\
626  OP4(*(uint32_t*)(block+4), AV_RN32(pixels+4));\
627  pixels+=line_size;\
628  block +=line_size;\
629  }\
630 }
631 
632 #define op_put(a, b) a = av_clip_uint8(b)
633 #define op_avg(a, b) a = (a + av_clip_uint8(b) + 1) >> 1
634 #define op4_avg(a, b) a = rnd_avg32(a, b)
635 #define op4_put(a, b) a = b
636 
637 VC1_MSPEL_MC(op_put, op4_put, put_)
638 VC1_MSPEL_MC(op_avg, op4_avg, avg_)
639 
640 /* pixel functions - really are entry points to vc1_mspel_mc */
641 
642 #define PUT_VC1_MSPEL(a, b)\
643 static void put_vc1_mspel_mc ## a ## b ##_c(uint8_t *dst, \
644  const uint8_t *src, \
645  ptrdiff_t stride, int rnd) \
646 { \
647  put_vc1_mspel_mc(dst, src, stride, a, b, rnd); \
648 } \
649 static void avg_vc1_mspel_mc ## a ## b ##_c(uint8_t *dst, \
650  const uint8_t *src, \
651  ptrdiff_t stride, int rnd) \
652 { \
653  avg_vc1_mspel_mc(dst, src, stride, a, b, rnd); \
654 }
655 
656 PUT_VC1_MSPEL(1, 0)
657 PUT_VC1_MSPEL(2, 0)
658 PUT_VC1_MSPEL(3, 0)
659 
660 PUT_VC1_MSPEL(0, 1)
661 PUT_VC1_MSPEL(1, 1)
662 PUT_VC1_MSPEL(2, 1)
663 PUT_VC1_MSPEL(3, 1)
664 
665 PUT_VC1_MSPEL(0, 2)
666 PUT_VC1_MSPEL(1, 2)
667 PUT_VC1_MSPEL(2, 2)
668 PUT_VC1_MSPEL(3, 2)
669 
670 PUT_VC1_MSPEL(0, 3)
671 PUT_VC1_MSPEL(1, 3)
672 PUT_VC1_MSPEL(2, 3)
673 PUT_VC1_MSPEL(3, 3)
674 
675 static void put_no_rnd_vc1_chroma_mc8_c(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int x, int y){
676  const int A=(8-x)*(8-y);
677  const int B=( x)*(8-y);
678  const int C=(8-x)*( y);
679  const int D=( x)*( y);
680  int i;
681 
682  av_assert2(x<8 && y<8 && x>=0 && y>=0);
683 
684  for(i=0; i<h; i++)
685  {
686  dst[0] = (A*src[0] + B*src[1] + C*src[stride+0] + D*src[stride+1] + 32 - 4) >> 6;
687  dst[1] = (A*src[1] + B*src[2] + C*src[stride+1] + D*src[stride+2] + 32 - 4) >> 6;
688  dst[2] = (A*src[2] + B*src[3] + C*src[stride+2] + D*src[stride+3] + 32 - 4) >> 6;
689  dst[3] = (A*src[3] + B*src[4] + C*src[stride+3] + D*src[stride+4] + 32 - 4) >> 6;
690  dst[4] = (A*src[4] + B*src[5] + C*src[stride+4] + D*src[stride+5] + 32 - 4) >> 6;
691  dst[5] = (A*src[5] + B*src[6] + C*src[stride+5] + D*src[stride+6] + 32 - 4) >> 6;
692  dst[6] = (A*src[6] + B*src[7] + C*src[stride+6] + D*src[stride+7] + 32 - 4) >> 6;
693  dst[7] = (A*src[7] + B*src[8] + C*src[stride+7] + D*src[stride+8] + 32 - 4) >> 6;
694  dst+= stride;
695  src+= stride;
696  }
697 }
698 
699 static void put_no_rnd_vc1_chroma_mc4_c(uint8_t *dst, uint8_t *src, int stride, int h, int x, int y){
700  const int A=(8-x)*(8-y);
701  const int B=( x)*(8-y);
702  const int C=(8-x)*( y);
703  const int D=( x)*( y);
704  int i;
705 
706  av_assert2(x<8 && y<8 && x>=0 && y>=0);
707 
708  for(i=0; i<h; i++)
709  {
710  dst[0] = (A*src[0] + B*src[1] + C*src[stride+0] + D*src[stride+1] + 32 - 4) >> 6;
711  dst[1] = (A*src[1] + B*src[2] + C*src[stride+1] + D*src[stride+2] + 32 - 4) >> 6;
712  dst[2] = (A*src[2] + B*src[3] + C*src[stride+2] + D*src[stride+3] + 32 - 4) >> 6;
713  dst[3] = (A*src[3] + B*src[4] + C*src[stride+3] + D*src[stride+4] + 32 - 4) >> 6;
714  dst+= stride;
715  src+= stride;
716  }
717 }
718 
719 #define avg2(a,b) ((a+b+1)>>1)
720 static void avg_no_rnd_vc1_chroma_mc8_c(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int x, int y){
721  const int A=(8-x)*(8-y);
722  const int B=( x)*(8-y);
723  const int C=(8-x)*( y);
724  const int D=( x)*( y);
725  int i;
726 
727  av_assert2(x<8 && y<8 && x>=0 && y>=0);
728 
729  for(i=0; i<h; i++)
730  {
731  dst[0] = avg2(dst[0], ((A*src[0] + B*src[1] + C*src[stride+0] + D*src[stride+1] + 32 - 4) >> 6));
732  dst[1] = avg2(dst[1], ((A*src[1] + B*src[2] + C*src[stride+1] + D*src[stride+2] + 32 - 4) >> 6));
733  dst[2] = avg2(dst[2], ((A*src[2] + B*src[3] + C*src[stride+2] + D*src[stride+3] + 32 - 4) >> 6));
734  dst[3] = avg2(dst[3], ((A*src[3] + B*src[4] + C*src[stride+3] + D*src[stride+4] + 32 - 4) >> 6));
735  dst[4] = avg2(dst[4], ((A*src[4] + B*src[5] + C*src[stride+4] + D*src[stride+5] + 32 - 4) >> 6));
736  dst[5] = avg2(dst[5], ((A*src[5] + B*src[6] + C*src[stride+5] + D*src[stride+6] + 32 - 4) >> 6));
737  dst[6] = avg2(dst[6], ((A*src[6] + B*src[7] + C*src[stride+6] + D*src[stride+7] + 32 - 4) >> 6));
738  dst[7] = avg2(dst[7], ((A*src[7] + B*src[8] + C*src[stride+7] + D*src[stride+8] + 32 - 4) >> 6));
739  dst+= stride;
740  src+= stride;
741  }
742 }
743 
744 #if CONFIG_WMV3IMAGE_DECODER || CONFIG_VC1IMAGE_DECODER
745 
746 static void sprite_h_c(uint8_t *dst, const uint8_t *src, int offset, int advance, int count)
747 {
748  while (count--) {
749  int a = src[(offset >> 16) ];
750  int b = src[(offset >> 16) + 1];
751  *dst++ = a + ((b - a) * (offset&0xFFFF) >> 16);
752  offset += advance;
753  }
754 }
755 
756 static av_always_inline void sprite_v_template(uint8_t *dst, const uint8_t *src1a, const uint8_t *src1b, int offset1,
757  int two_sprites, const uint8_t *src2a, const uint8_t *src2b, int offset2,
758  int alpha, int scaled, int width)
759 {
760  int a1, b1, a2, b2;
761  while (width--) {
762  a1 = *src1a++;
763  if (scaled) {
764  b1 = *src1b++;
765  a1 = a1 + ((b1 - a1) * offset1 >> 16);
766  }
767  if (two_sprites) {
768  a2 = *src2a++;
769  if (scaled > 1) {
770  b2 = *src2b++;
771  a2 = a2 + ((b2 - a2) * offset2 >> 16);
772  }
773  a1 = a1 + ((a2 - a1) * alpha >> 16);
774  }
775  *dst++ = a1;
776  }
777 }
778 
779 static void sprite_v_single_c(uint8_t *dst, const uint8_t *src1a, const uint8_t *src1b, int offset, int width)
780 {
781  sprite_v_template(dst, src1a, src1b, offset, 0, NULL, NULL, 0, 0, 1, width);
782 }
783 
784 static void sprite_v_double_noscale_c(uint8_t *dst, const uint8_t *src1a, const uint8_t *src2a, int alpha, int width)
785 {
786  sprite_v_template(dst, src1a, NULL, 0, 1, src2a, NULL, 0, alpha, 0, width);
787 }
788 
789 static void sprite_v_double_onescale_c(uint8_t *dst, const uint8_t *src1a, const uint8_t *src1b, int offset1,
790  const uint8_t *src2a, int alpha, int width)
791 {
792  sprite_v_template(dst, src1a, src1b, offset1, 1, src2a, NULL, 0, alpha, 1, width);
793 }
794 
795 static void sprite_v_double_twoscale_c(uint8_t *dst, const uint8_t *src1a, const uint8_t *src1b, int offset1,
796  const uint8_t *src2a, const uint8_t *src2b, int offset2,
797  int alpha, int width)
798 {
799  sprite_v_template(dst, src1a, src1b, offset1, 1, src2a, src2b, offset2, alpha, 2, width);
800 }
801 
802 #endif
803 
804 av_cold void ff_vc1dsp_init(VC1DSPContext* dsp) {
805  dsp->vc1_inv_trans_8x8 = vc1_inv_trans_8x8_c;
806  dsp->vc1_inv_trans_4x8 = vc1_inv_trans_4x8_c;
807  dsp->vc1_inv_trans_8x4 = vc1_inv_trans_8x4_c;
808  dsp->vc1_inv_trans_4x4 = vc1_inv_trans_4x4_c;
809  dsp->vc1_inv_trans_8x8_dc = vc1_inv_trans_8x8_dc_c;
810  dsp->vc1_inv_trans_4x8_dc = vc1_inv_trans_4x8_dc_c;
811  dsp->vc1_inv_trans_8x4_dc = vc1_inv_trans_8x4_dc_c;
812  dsp->vc1_inv_trans_4x4_dc = vc1_inv_trans_4x4_dc_c;
813  dsp->vc1_h_overlap = vc1_h_overlap_c;
814  dsp->vc1_v_overlap = vc1_v_overlap_c;
815  dsp->vc1_h_s_overlap = vc1_h_s_overlap_c;
816  dsp->vc1_v_s_overlap = vc1_v_s_overlap_c;
817  dsp->vc1_v_loop_filter4 = vc1_v_loop_filter4_c;
818  dsp->vc1_h_loop_filter4 = vc1_h_loop_filter4_c;
819  dsp->vc1_v_loop_filter8 = vc1_v_loop_filter8_c;
820  dsp->vc1_h_loop_filter8 = vc1_h_loop_filter8_c;
821  dsp->vc1_v_loop_filter16 = vc1_v_loop_filter16_c;
822  dsp->vc1_h_loop_filter16 = vc1_h_loop_filter16_c;
823 
824  dsp->put_vc1_mspel_pixels_tab[ 0] = put_pixels8x8_c;
825  dsp->put_vc1_mspel_pixels_tab[ 1] = put_vc1_mspel_mc10_c;
826  dsp->put_vc1_mspel_pixels_tab[ 2] = put_vc1_mspel_mc20_c;
827  dsp->put_vc1_mspel_pixels_tab[ 3] = put_vc1_mspel_mc30_c;
828  dsp->put_vc1_mspel_pixels_tab[ 4] = put_vc1_mspel_mc01_c;
829  dsp->put_vc1_mspel_pixels_tab[ 5] = put_vc1_mspel_mc11_c;
830  dsp->put_vc1_mspel_pixels_tab[ 6] = put_vc1_mspel_mc21_c;
831  dsp->put_vc1_mspel_pixels_tab[ 7] = put_vc1_mspel_mc31_c;
832  dsp->put_vc1_mspel_pixels_tab[ 8] = put_vc1_mspel_mc02_c;
833  dsp->put_vc1_mspel_pixels_tab[ 9] = put_vc1_mspel_mc12_c;
834  dsp->put_vc1_mspel_pixels_tab[10] = put_vc1_mspel_mc22_c;
835  dsp->put_vc1_mspel_pixels_tab[11] = put_vc1_mspel_mc32_c;
836  dsp->put_vc1_mspel_pixels_tab[12] = put_vc1_mspel_mc03_c;
837  dsp->put_vc1_mspel_pixels_tab[13] = put_vc1_mspel_mc13_c;
838  dsp->put_vc1_mspel_pixels_tab[14] = put_vc1_mspel_mc23_c;
839  dsp->put_vc1_mspel_pixels_tab[15] = put_vc1_mspel_mc33_c;
840 
841  dsp->avg_vc1_mspel_pixels_tab[ 0] = avg_pixels8x8_c;
842  dsp->avg_vc1_mspel_pixels_tab[ 1] = avg_vc1_mspel_mc10_c;
843  dsp->avg_vc1_mspel_pixels_tab[ 2] = avg_vc1_mspel_mc20_c;
844  dsp->avg_vc1_mspel_pixels_tab[ 3] = avg_vc1_mspel_mc30_c;
845  dsp->avg_vc1_mspel_pixels_tab[ 4] = avg_vc1_mspel_mc01_c;
846  dsp->avg_vc1_mspel_pixels_tab[ 5] = avg_vc1_mspel_mc11_c;
847  dsp->avg_vc1_mspel_pixels_tab[ 6] = avg_vc1_mspel_mc21_c;
848  dsp->avg_vc1_mspel_pixels_tab[ 7] = avg_vc1_mspel_mc31_c;
849  dsp->avg_vc1_mspel_pixels_tab[ 8] = avg_vc1_mspel_mc02_c;
850  dsp->avg_vc1_mspel_pixels_tab[ 9] = avg_vc1_mspel_mc12_c;
851  dsp->avg_vc1_mspel_pixels_tab[10] = avg_vc1_mspel_mc22_c;
852  dsp->avg_vc1_mspel_pixels_tab[11] = avg_vc1_mspel_mc32_c;
853  dsp->avg_vc1_mspel_pixels_tab[12] = avg_vc1_mspel_mc03_c;
854  dsp->avg_vc1_mspel_pixels_tab[13] = avg_vc1_mspel_mc13_c;
855  dsp->avg_vc1_mspel_pixels_tab[14] = avg_vc1_mspel_mc23_c;
856  dsp->avg_vc1_mspel_pixels_tab[15] = avg_vc1_mspel_mc33_c;
857 
858  dsp->put_no_rnd_vc1_chroma_pixels_tab[0]= put_no_rnd_vc1_chroma_mc8_c;
859  dsp->avg_no_rnd_vc1_chroma_pixels_tab[0]= avg_no_rnd_vc1_chroma_mc8_c;
860  dsp->put_no_rnd_vc1_chroma_pixels_tab[1] = put_no_rnd_vc1_chroma_mc4_c;
861 
862 #if CONFIG_WMV3IMAGE_DECODER || CONFIG_VC1IMAGE_DECODER
863  dsp->sprite_h = sprite_h_c;
864  dsp->sprite_v_single = sprite_v_single_c;
865  dsp->sprite_v_double_noscale = sprite_v_double_noscale_c;
866  dsp->sprite_v_double_onescale = sprite_v_double_onescale_c;
867  dsp->sprite_v_double_twoscale = sprite_v_double_twoscale_c;
868 #endif
869 
870  if (HAVE_ALTIVEC)
871  ff_vc1dsp_init_altivec(dsp);
872  if (ARCH_X86)
873  ff_vc1dsp_init_x86(dsp);
874 }
vc1_inv_trans_4x4_c
static void vc1_inv_trans_4x4_c(uint8_t *dest, int linesize, int16_t *block)
Definition: vc1dsp.c:486
vc1dsp.h
VC-1 and WMV3 decoder.
VC1DSPContext::vc1_h_s_overlap
void(* vc1_h_s_overlap)(int16_t *left, int16_t *right)
Definition: vc1dsp.h:50
vc1_inv_trans_4x8_dc_c
static void vc1_inv_trans_4x8_dc_c(uint8_t *dest, int linesize, int16_t *block)
Do inverse transform on 4x8 parts of block.
Definition: vc1dsp.c:400
VC1DSPContext::vc1_inv_trans_4x8
void(* vc1_inv_trans_4x8)(uint8_t *dest, int line_size, int16_t *block)
Definition: vc1dsp.h:41
VC1DSPContext::sprite_v_double_onescale
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:72
C
#define C
vc1_inv_trans_8x8_dc_c
static void vc1_inv_trans_8x8_dc_c(uint8_t *dest, int linesize, int16_t *block)
Do inverse transform on 8x8 block.
Definition: vc1dsp.c:235
put_no_rnd_vc1_chroma_mc4_c
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:699
B
#define B
Definition: dsputil.c:2025
temp
else temp
Definition: vf_mcdeint.c:148
vc1_filter_line
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:145
VC1DSPContext::vc1_v_loop_filter16
void(* vc1_v_loop_filter16)(uint8_t *src, int stride, int pq)
Definition: vc1dsp.h:55
a0
#define a0
Definition: regdef.h:46
vc1_v_loop_filter16_c
static void vc1_v_loop_filter16_c(uint8_t *src, int stride, int pq)
Definition: vc1dsp.c:223
vc1_v_loop_filter4_c
static void vc1_v_loop_filter4_c(uint8_t *src, int stride, int pq)
Definition: vc1dsp.c:203
HAVE_ALTIVEC
#define HAVE_ALTIVEC
Definition: config.h:56
VC1DSPContext::vc1_v_overlap
void(* vc1_v_overlap)(uint8_t *src, int stride)
Definition: vc1dsp.h:47
VC1DSPContext::sprite_v_single
void(* sprite_v_single)(uint8_t *dst, const uint8_t *src1a, const uint8_t *src1b, int offset, int width)
Definition: vc1dsp.h:70
VC1DSPContext::vc1_h_loop_filter16
void(* vc1_h_loop_filter16)(uint8_t *src, int stride, int pq)
Definition: vc1dsp.h:56
a1
#define a1
Definition: regdef.h:47
t8
#define t8
Definition: regdef.h:53
stride
int stride
Definition: mace.c:144
VC1DSPContext::vc1_inv_trans_8x4_dc
void(* vc1_inv_trans_8x4_dc)(uint8_t *dest, int line_size, int16_t *block)
Definition: vc1dsp.h:44
VC1DSPContext::vc1_v_loop_filter4
void(* vc1_v_loop_filter4)(uint8_t *src, int stride, int pq)
Definition: vc1dsp.h:51
VC1DSPContext::put_vc1_mspel_pixels_tab
vc1op_pixels_func put_vc1_mspel_pixels_tab[16]
Definition: vc1dsp.h:61
VC1_MSPEL_FILTER_16B
#define VC1_MSPEL_FILTER_16B(DIR, TYPE)
Filter in case of 2 filters.
Definition: vc1dsp.c:528
d
set threshold d
Definition: extra/f0detectionyin.m:6
t7
#define t7
Definition: regdef.h:35
a3
#define a3
Definition: regdef.h:49
uint8_t
uint8_t
Definition: audio_convert.c:194
av_cold
#define av_cold
Definition: attributes.h:78
av_assert2
#define av_assert2(cond)
assert() equivalent, that does lie in speed critical code.
Definition: avassert.h:63
mode
mode
Definition: f_perms.c:27
vc1_h_loop_filter16_c
static void vc1_h_loop_filter16_c(uint8_t *src, int stride, int pq)
Definition: vc1dsp.c:228
op_avg
#define op_avg(a, b)
Definition: vc1dsp.c:633
b
#define b
Definition: input.c:42
avg2
#define avg2(a, b)
Definition: vc1dsp.c:719
VC1DSPContext::vc1_inv_trans_8x8
void(* vc1_inv_trans_8x8)(int16_t *b)
Definition: vc1dsp.h:39
D
D(D(float, sse)
Definition: swresample_x86.c:146
A
#define A(x)
Definition: arm/vp56_arith.h:28
avg_no_rnd_vc1_chroma_mc8_c
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:720
VC1DSPContext::vc1_h_loop_filter8
void(* vc1_h_loop_filter8)(uint8_t *src, int stride, int pq)
Definition: vc1dsp.h:54
x
Discrete Time axis x
Definition: FFT of a Simple Sinusoid.m:10
vc1_h_overlap_c
static void vc1_h_overlap_c(uint8_t *src, int stride)
Apply overlap transform to vertical edge.
Definition: vc1dsp.c:62
alpha
static double alpha(void *priv, double x, double y)
Definition: vf_geq.c:86
VC1DSPContext::vc1_inv_trans_4x4
void(* vc1_inv_trans_4x4)(uint8_t *dest, int line_size, int16_t *block)
Definition: vc1dsp.h:42
put_no_rnd_vc1_chroma_mc8_c
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:675
ARCH_X86
#define ARCH_X86
Definition: config.h:35
r
const char * r
Definition: vf_curves.c:94
t1
#define t1
Definition: regdef.h:29
avassert.h
simple assert() macros that are a bit more flexible than ISO C assert().
d2
init variable d2
Definition: extra/f0detectionyin.m:7
VC1DSPContext::vc1_v_loop_filter8
void(* vc1_v_loop_filter8)(uint8_t *src, int stride, int pq)
Definition: vc1dsp.h:53
t3
#define t3
Definition: regdef.h:31
offset
static const uint8_t offset[127][2]
Definition: vf_spp.c:70
VC1DSPContext::vc1_inv_trans_8x8_dc
void(* vc1_inv_trans_8x8_dc)(uint8_t *dest, int line_size, int16_t *block)
Definition: vc1dsp.h:43
op_put
#define op_put(a, b)
Definition: vc1dsp.c:632
vc1_loop_filter
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:187
FFMIN
#define FFMIN(a, b)
Definition: common.h:58
vc1_inv_trans_8x8_c
static void vc1_inv_trans_8x8_c(int16_t block[64])
Definition: vc1dsp.c:254
ff_vc1dsp_init_x86
void ff_vc1dsp_init_x86(VC1DSPContext *dsp)
Definition: vc1dsp_init.c:84
VC1DSPContext::vc1_h_overlap
void(* vc1_h_overlap)(uint8_t *src, int stride)
Definition: vc1dsp.h:48
a2
#define a2
Definition: regdef.h:48
FFABS
#define FFABS(a)
Definition: common.h:53
op4_avg
#define op4_avg(a, b)
Definition: vc1dsp.c:634
vc1_v_s_overlap_c
static void vc1_v_s_overlap_c(int16_t *top, int16_t *bottom)
Definition: vc1dsp.c:85
VC1DSPContext::avg_vc1_mspel_pixels_tab
vc1op_pixels_func avg_vc1_mspel_pixels_tab[16]
Definition: vc1dsp.h:62
VC1DSPContext::vc1_v_s_overlap
void(* vc1_v_s_overlap)(int16_t *top, int16_t *bottom)
Definition: vc1dsp.h:49
vc1_v_loop_filter8_c
static void vc1_v_loop_filter8_c(uint8_t *src, int stride, int pq)
Definition: vc1dsp.c:213
VC1DSPContext::vc1_inv_trans_4x8_dc
void(* vc1_inv_trans_4x8_dc)(uint8_t *dest, int line_size, int16_t *block)
Definition: vc1dsp.h:45
VC1DSPContext::avg_no_rnd_vc1_chroma_pixels_tab
h264_chroma_mc_func avg_no_rnd_vc1_chroma_pixels_tab[3]
Definition: vc1dsp.h:66
NULL
NULL
Definition: eval.c:55
width
static int width
Definition: tests/utils.c:158
start.dest
dest
Definition: start.py:60
PUT_VC1_MSPEL
#define PUT_VC1_MSPEL(a, b)
Definition: vc1dsp.c:642
src
AVS_Value src
Definition: avisynth_c.h:523
VC1DSPContext::sprite_v_double_noscale
void(* sprite_v_double_noscale)(uint8_t *dst, const uint8_t *src1a, const uint8_t *src2a, int alpha, int width)
Definition: vc1dsp.h:71
dc
FIXME Range Coding of cr are mx and my are Motion Vector top and top right vectors is used as motion vector prediction the used motion vector is the sum of the predictor and(mvx_diff, mvy_diff)*mv_scale Intra DC Predicton block[y][x] dc[1]
Definition: snow.txt:392
VC1DSPContext::vc1_inv_trans_8x4
void(* vc1_inv_trans_8x4)(uint8_t *dest, int line_size, int16_t *block)
Definition: vc1dsp.h:40
i
synthesis window for stochastic i
Definition: code Kat/hpsmodel.m:34
VC1DSPContext::sprite_v_double_twoscale
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:74
t5
#define t5
Definition: regdef.h:33
vc1_h_s_overlap_c
static void vc1_h_s_overlap_c(int16_t *left, int16_t *right)
Definition: vc1dsp.c:111
vc1_v_overlap_c
static void vc1_v_overlap_c(uint8_t *src, int stride)
Apply overlap transform to horizontal edge.
Definition: vc1dsp.c:37
VC1DSPContext::put_no_rnd_vc1_chroma_pixels_tab
h264_chroma_mc_func put_no_rnd_vc1_chroma_pixels_tab[3]
Definition: vc1dsp.h:65
rnd_avg.h
ff_vc1dsp_init_altivec
av_cold void ff_vc1dsp_init_altivec(VC1DSPContext *dsp)
Definition: vc1dsp_altivec.c:338
vc1_h_loop_filter8_c
static void vc1_h_loop_filter8_c(uint8_t *src, int stride, int pq)
Definition: vc1dsp.c:218
common.h
common internal and external API header
clip
static double clip(void *opaque, double val)
Clip value val in the minval - maxval range.
Definition: vf_lut.c:139
t6
#define t6
Definition: regdef.h:34
c
static double c[64]
Definition: vsrc_mptestsrc.c:88
vc1_h_loop_filter4_c
static void vc1_h_loop_filter4_c(uint8_t *src, int stride, int pq)
Definition: vc1dsp.c:208
y
function y
Definition: D.m:1
vc1_inv_trans_8x4_c
static void vc1_inv_trans_8x4_c(uint8_t *dest, int linesize, int16_t *block)
Definition: vc1dsp.c:344
VC1_MSPEL_MC
#define VC1_MSPEL_MC(OP, OP4, OPNAME)
Function used to do motion compensation with bicubic interpolation.
Definition: vc1dsp.c:567
t4
#define t4
Definition: regdef.h:32
vc1_mspel_filter
static av_always_inline int vc1_mspel_filter(const uint8_t *src, int stride, int mode, int r)
Filter used to interpolate fractional pel values.
Definition: vc1dsp.c:550
len
int len
Definition: vorbis_enc_data.h:452
dst
else dst[i][x+y *dst_stride[i]]
Definition: vf_mcdeint.c:160
VC1DSPContext::vc1_inv_trans_4x4_dc
void(* vc1_inv_trans_4x4_dc)(uint8_t *dest, int line_size, int16_t *block)
Definition: vc1dsp.h:46
VC1DSPContext::vc1_h_loop_filter4
void(* vc1_h_loop_filter4)(uint8_t *src, int stride, int pq)
Definition: vc1dsp.h:52
count
void INT64 INT64 count
Definition: avisynth_c.h:594
av_always_inline
#define av_always_inline
Definition: attributes.h:41
vc1_inv_trans_8x4_dc_c
static void vc1_inv_trans_8x4_dc_c(uint8_t *dest, int linesize, int16_t *block)
Do inverse transform on 8x4 part of block.
Definition: vc1dsp.c:325
VC1DSPContext::sprite_h
void(* sprite_h)(uint8_t *dst, const uint8_t *src, int offset, int advance, int count)
Definition: vc1dsp.h:69
ff_vc1dsp_init
av_cold void ff_vc1dsp_init(VC1DSPContext *dsp)
Definition: vc1dsp.c:804
op4_put
#define op4_put(a, b)
Definition: vc1dsp.c:635
vc1_inv_trans_4x4_dc_c
static void vc1_inv_trans_4x4_dc_c(uint8_t *dest, int linesize, int16_t *block)
Do inverse transform on 4x4 part of block.
Definition: vc1dsp.c:471
t2
#define t2
Definition: regdef.h:30
step
trying all byte sequences megabyte in length and selecting the best looking sequence will yield cases to try But a word about which is also called distortion Distortion can be quantified by almost any quality measurement one chooses the sum of squared differences is used but more complex methods that consider psychovisual effects can be used as well It makes no difference in this discussion First step
Definition: rate_distortion.txt:12
a
a
Definition: h264pred_template.c:466
vc1_inv_trans_4x8_c
static void vc1_inv_trans_4x8_c(uint8_t *dest, int linesize, int16_t *block)
Definition: vc1dsp.c:415
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