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vp8dsp.c
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1 /*
2  * Copyright (C) 2010 David Conrad
3  * Copyright (C) 2010 Ronald S. Bultje
4  * Copyright (C) 2014 Peter Ross
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 /**
24  * @file
25  * VP8 compatible video decoder
26  */
27 
28 #include "libavutil/common.h"
29 #include "libavutil/intreadwrite.h"
30 
31 #include "mathops.h"
32 #include "vp8dsp.h"
33 
34 #define MK_IDCT_DC_ADD4_C(name) \
35 static void name ## _idct_dc_add4uv_c(uint8_t *dst, int16_t block[4][16], \
36  ptrdiff_t stride) \
37 { \
38  name ## _idct_dc_add_c(dst + stride * 0 + 0, block[0], stride); \
39  name ## _idct_dc_add_c(dst + stride * 0 + 4, block[1], stride); \
40  name ## _idct_dc_add_c(dst + stride * 4 + 0, block[2], stride); \
41  name ## _idct_dc_add_c(dst + stride * 4 + 4, block[3], stride); \
42 } \
43  \
44 static void name ## _idct_dc_add4y_c(uint8_t *dst, int16_t block[4][16], \
45  ptrdiff_t stride) \
46 { \
47  name ## _idct_dc_add_c(dst + 0, block[0], stride); \
48  name ## _idct_dc_add_c(dst + 4, block[1], stride); \
49  name ## _idct_dc_add_c(dst + 8, block[2], stride); \
50  name ## _idct_dc_add_c(dst + 12, block[3], stride); \
51 }
52 
53 #if CONFIG_VP7_DECODER
54 static void vp7_luma_dc_wht_c(int16_t block[4][4][16], int16_t dc[16])
55 {
56  int i;
57  unsigned a1, b1, c1, d1;
58  int16_t tmp[16];
59 
60  for (i = 0; i < 4; i++) {
61  a1 = (dc[i * 4 + 0] + dc[i * 4 + 2]) * 23170;
62  b1 = (dc[i * 4 + 0] - dc[i * 4 + 2]) * 23170;
63  c1 = dc[i * 4 + 1] * 12540 - dc[i * 4 + 3] * 30274;
64  d1 = dc[i * 4 + 1] * 30274 + dc[i * 4 + 3] * 12540;
65  tmp[i * 4 + 0] = (int)(a1 + d1) >> 14;
66  tmp[i * 4 + 3] = (int)(a1 - d1) >> 14;
67  tmp[i * 4 + 1] = (int)(b1 + c1) >> 14;
68  tmp[i * 4 + 2] = (int)(b1 - c1) >> 14;
69  }
70 
71  for (i = 0; i < 4; i++) {
72  a1 = (tmp[i + 0] + tmp[i + 8]) * 23170;
73  b1 = (tmp[i + 0] - tmp[i + 8]) * 23170;
74  c1 = tmp[i + 4] * 12540 - tmp[i + 12] * 30274;
75  d1 = tmp[i + 4] * 30274 + tmp[i + 12] * 12540;
76  AV_ZERO64(dc + i * 4);
77  block[0][i][0] = (int)(a1 + d1 + 0x20000) >> 18;
78  block[3][i][0] = (int)(a1 - d1 + 0x20000) >> 18;
79  block[1][i][0] = (int)(b1 + c1 + 0x20000) >> 18;
80  block[2][i][0] = (int)(b1 - c1 + 0x20000) >> 18;
81  }
82 }
83 
84 static void vp7_luma_dc_wht_dc_c(int16_t block[4][4][16], int16_t dc[16])
85 {
86  int i, val = (23170 * (23170 * dc[0] >> 14) + 0x20000) >> 18;
87  dc[0] = 0;
88 
89  for (i = 0; i < 4; i++) {
90  block[i][0][0] = val;
91  block[i][1][0] = val;
92  block[i][2][0] = val;
93  block[i][3][0] = val;
94  }
95 }
96 
97 static void vp7_idct_add_c(uint8_t *dst, int16_t block[16], ptrdiff_t stride)
98 {
99  int i;
100  unsigned a1, b1, c1, d1;
101  int16_t tmp[16];
102 
103  for (i = 0; i < 4; i++) {
104  a1 = (block[i * 4 + 0] + block[i * 4 + 2]) * 23170;
105  b1 = (block[i * 4 + 0] - block[i * 4 + 2]) * 23170;
106  c1 = block[i * 4 + 1] * 12540 - block[i * 4 + 3] * 30274;
107  d1 = block[i * 4 + 1] * 30274 + block[i * 4 + 3] * 12540;
108  AV_ZERO64(block + i * 4);
109  tmp[i * 4 + 0] = (int)(a1 + d1) >> 14;
110  tmp[i * 4 + 3] = (int)(a1 - d1) >> 14;
111  tmp[i * 4 + 1] = (int)(b1 + c1) >> 14;
112  tmp[i * 4 + 2] = (int)(b1 - c1) >> 14;
113  }
114 
115  for (i = 0; i < 4; i++) {
116  a1 = (tmp[i + 0] + tmp[i + 8]) * 23170;
117  b1 = (tmp[i + 0] - tmp[i + 8]) * 23170;
118  c1 = tmp[i + 4] * 12540 - tmp[i + 12] * 30274;
119  d1 = tmp[i + 4] * 30274 + tmp[i + 12] * 12540;
120  dst[0 * stride + i] = av_clip_uint8(dst[0 * stride + i] +
121  ((int)(a1 + d1 + 0x20000) >> 18));
122  dst[3 * stride + i] = av_clip_uint8(dst[3 * stride + i] +
123  ((int)(a1 - d1 + 0x20000) >> 18));
124  dst[1 * stride + i] = av_clip_uint8(dst[1 * stride + i] +
125  ((int)(b1 + c1 + 0x20000) >> 18));
126  dst[2 * stride + i] = av_clip_uint8(dst[2 * stride + i] +
127  ((int)(b1 - c1 + 0x20000) >> 18));
128  }
129 }
130 
131 static void vp7_idct_dc_add_c(uint8_t *dst, int16_t block[16], ptrdiff_t stride)
132 {
133  int i, dc = (23170 * (23170 * block[0] >> 14) + 0x20000) >> 18;
134  block[0] = 0;
135 
136  for (i = 0; i < 4; i++) {
137  dst[0] = av_clip_uint8(dst[0] + dc);
138  dst[1] = av_clip_uint8(dst[1] + dc);
139  dst[2] = av_clip_uint8(dst[2] + dc);
140  dst[3] = av_clip_uint8(dst[3] + dc);
141  dst += stride;
142  }
143 }
144 
145 MK_IDCT_DC_ADD4_C(vp7)
146 #endif /* CONFIG_VP7_DECODER */
147 
148 // TODO: Maybe add dequant
149 #if CONFIG_VP8_DECODER
150 static void vp8_luma_dc_wht_c(int16_t block[4][4][16], int16_t dc[16])
151 {
152  int i, t0, t1, t2, t3;
153 
154  for (i = 0; i < 4; i++) {
155  t0 = dc[0 * 4 + i] + dc[3 * 4 + i];
156  t1 = dc[1 * 4 + i] + dc[2 * 4 + i];
157  t2 = dc[1 * 4 + i] - dc[2 * 4 + i];
158  t3 = dc[0 * 4 + i] - dc[3 * 4 + i];
159 
160  dc[0 * 4 + i] = t0 + t1;
161  dc[1 * 4 + i] = t3 + t2;
162  dc[2 * 4 + i] = t0 - t1;
163  dc[3 * 4 + i] = t3 - t2;
164  }
165 
166  for (i = 0; i < 4; i++) {
167  t0 = dc[i * 4 + 0] + dc[i * 4 + 3] + 3; // rounding
168  t1 = dc[i * 4 + 1] + dc[i * 4 + 2];
169  t2 = dc[i * 4 + 1] - dc[i * 4 + 2];
170  t3 = dc[i * 4 + 0] - dc[i * 4 + 3] + 3; // rounding
171  AV_ZERO64(dc + i * 4);
172 
173  block[i][0][0] = (t0 + t1) >> 3;
174  block[i][1][0] = (t3 + t2) >> 3;
175  block[i][2][0] = (t0 - t1) >> 3;
176  block[i][3][0] = (t3 - t2) >> 3;
177  }
178 }
179 
180 static void vp8_luma_dc_wht_dc_c(int16_t block[4][4][16], int16_t dc[16])
181 {
182  int i, val = (dc[0] + 3) >> 3;
183  dc[0] = 0;
184 
185  for (i = 0; i < 4; i++) {
186  block[i][0][0] = val;
187  block[i][1][0] = val;
188  block[i][2][0] = val;
189  block[i][3][0] = val;
190  }
191 }
192 
193 #define MUL_20091(a) ((((a) * 20091) >> 16) + (a))
194 #define MUL_35468(a) (((a) * 35468) >> 16)
195 
196 static void vp8_idct_add_c(uint8_t *dst, int16_t block[16], ptrdiff_t stride)
197 {
198  int i, t0, t1, t2, t3;
199  int16_t tmp[16];
200 
201  for (i = 0; i < 4; i++) {
202  t0 = block[0 * 4 + i] + block[2 * 4 + i];
203  t1 = block[0 * 4 + i] - block[2 * 4 + i];
204  t2 = MUL_35468(block[1 * 4 + i]) - MUL_20091(block[3 * 4 + i]);
205  t3 = MUL_20091(block[1 * 4 + i]) + MUL_35468(block[3 * 4 + i]);
206  block[0 * 4 + i] = 0;
207  block[1 * 4 + i] = 0;
208  block[2 * 4 + i] = 0;
209  block[3 * 4 + i] = 0;
210 
211  tmp[i * 4 + 0] = t0 + t3;
212  tmp[i * 4 + 1] = t1 + t2;
213  tmp[i * 4 + 2] = t1 - t2;
214  tmp[i * 4 + 3] = t0 - t3;
215  }
216 
217  for (i = 0; i < 4; i++) {
218  t0 = tmp[0 * 4 + i] + tmp[2 * 4 + i];
219  t1 = tmp[0 * 4 + i] - tmp[2 * 4 + i];
220  t2 = MUL_35468(tmp[1 * 4 + i]) - MUL_20091(tmp[3 * 4 + i]);
221  t3 = MUL_20091(tmp[1 * 4 + i]) + MUL_35468(tmp[3 * 4 + i]);
222 
223  dst[0] = av_clip_uint8(dst[0] + ((t0 + t3 + 4) >> 3));
224  dst[1] = av_clip_uint8(dst[1] + ((t1 + t2 + 4) >> 3));
225  dst[2] = av_clip_uint8(dst[2] + ((t1 - t2 + 4) >> 3));
226  dst[3] = av_clip_uint8(dst[3] + ((t0 - t3 + 4) >> 3));
227  dst += stride;
228  }
229 }
230 
231 static void vp8_idct_dc_add_c(uint8_t *dst, int16_t block[16], ptrdiff_t stride)
232 {
233  int i, dc = (block[0] + 4) >> 3;
234  block[0] = 0;
235 
236  for (i = 0; i < 4; i++) {
237  dst[0] = av_clip_uint8(dst[0] + dc);
238  dst[1] = av_clip_uint8(dst[1] + dc);
239  dst[2] = av_clip_uint8(dst[2] + dc);
240  dst[3] = av_clip_uint8(dst[3] + dc);
241  dst += stride;
242  }
243 }
244 
245 MK_IDCT_DC_ADD4_C(vp8)
246 #endif /* CONFIG_VP8_DECODER */
247 
248 // because I like only having two parameters to pass functions...
249 #define LOAD_PIXELS \
250  int av_unused p3 = p[-4 * stride]; \
251  int av_unused p2 = p[-3 * stride]; \
252  int av_unused p1 = p[-2 * stride]; \
253  int av_unused p0 = p[-1 * stride]; \
254  int av_unused q0 = p[ 0 * stride]; \
255  int av_unused q1 = p[ 1 * stride]; \
256  int av_unused q2 = p[ 2 * stride]; \
257  int av_unused q3 = p[ 3 * stride];
258 
259 #define clip_int8(n) (cm[(n) + 0x80] - 0x80)
260 
261 static av_always_inline void filter_common(uint8_t *p, ptrdiff_t stride,
262  int is4tap, int is_vp7)
263 {
264  LOAD_PIXELS
265  int a, f1, f2;
266  const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;
267 
268  a = 3 * (q0 - p0);
269 
270  if (is4tap)
271  a += clip_int8(p1 - q1);
272 
273  a = clip_int8(a);
274 
275  // We deviate from the spec here with c(a+3) >> 3
276  // since that's what libvpx does.
277  f1 = FFMIN(a + 4, 127) >> 3;
278 
279  if (is_vp7)
280  f2 = f1 - ((a & 7) == 4);
281  else
282  f2 = FFMIN(a + 3, 127) >> 3;
283 
284  // Despite what the spec says, we do need to clamp here to
285  // be bitexact with libvpx.
286  p[-1 * stride] = cm[p0 + f2];
287  p[ 0 * stride] = cm[q0 - f1];
288 
289  // only used for _inner on blocks without high edge variance
290  if (!is4tap) {
291  a = (f1 + 1) >> 1;
292  p[-2 * stride] = cm[p1 + a];
293  p[ 1 * stride] = cm[q1 - a];
294  }
295 }
296 
297 static av_always_inline void vp7_filter_common(uint8_t *p, ptrdiff_t stride,
298  int is4tap)
299 {
300  filter_common(p, stride, is4tap, IS_VP7);
301 }
302 
303 static av_always_inline void vp8_filter_common(uint8_t *p, ptrdiff_t stride,
304  int is4tap)
305 {
306  filter_common(p, stride, is4tap, IS_VP8);
307 }
308 
309 static av_always_inline int vp7_simple_limit(uint8_t *p, ptrdiff_t stride,
310  int flim)
311 {
312  LOAD_PIXELS
313  return FFABS(p0 - q0) <= flim;
314 }
315 
316 static av_always_inline int vp8_simple_limit(uint8_t *p, ptrdiff_t stride,
317  int flim)
318 {
319  LOAD_PIXELS
320  return 2 * FFABS(p0 - q0) + (FFABS(p1 - q1) >> 1) <= flim;
321 }
322 
323 /**
324  * E - limit at the macroblock edge
325  * I - limit for interior difference
326  */
327 #define NORMAL_LIMIT(vpn) \
328 static av_always_inline int vp ## vpn ## _normal_limit(uint8_t *p, \
329  ptrdiff_t stride, \
330  int E, int I) \
331 { \
332  LOAD_PIXELS \
333  return vp ## vpn ## _simple_limit(p, stride, E) && \
334  FFABS(p3 - p2) <= I && FFABS(p2 - p1) <= I && \
335  FFABS(p1 - p0) <= I && FFABS(q3 - q2) <= I && \
336  FFABS(q2 - q1) <= I && FFABS(q1 - q0) <= I; \
337 }
338 
339 NORMAL_LIMIT(7)
340 NORMAL_LIMIT(8)
341 
342 // high edge variance
343 static av_always_inline int hev(uint8_t *p, ptrdiff_t stride, int thresh)
344 {
345  LOAD_PIXELS
346  return FFABS(p1 - p0) > thresh || FFABS(q1 - q0) > thresh;
347 }
348 
349 static av_always_inline void filter_mbedge(uint8_t *p, ptrdiff_t stride)
350 {
351  int a0, a1, a2, w;
352  const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;
353 
354  LOAD_PIXELS
355 
356  w = clip_int8(p1 - q1);
357  w = clip_int8(w + 3 * (q0 - p0));
358 
359  a0 = (27 * w + 63) >> 7;
360  a1 = (18 * w + 63) >> 7;
361  a2 = (9 * w + 63) >> 7;
362 
363  p[-3 * stride] = cm[p2 + a2];
364  p[-2 * stride] = cm[p1 + a1];
365  p[-1 * stride] = cm[p0 + a0];
366  p[ 0 * stride] = cm[q0 - a0];
367  p[ 1 * stride] = cm[q1 - a1];
368  p[ 2 * stride] = cm[q2 - a2];
369 }
370 
371 #define LOOP_FILTER(vpn, dir, size, stridea, strideb, maybe_inline) \
372 static maybe_inline \
373 void vpn ## _ ## dir ## _loop_filter ## size ## _c(uint8_t *dst, \
374  ptrdiff_t stride, \
375  int flim_E, int flim_I, \
376  int hev_thresh) \
377 { \
378  int i; \
379  for (i = 0; i < size; i++) \
380  if (vpn ## _normal_limit(dst + i * stridea, strideb, \
381  flim_E, flim_I)) { \
382  if (hev(dst + i * stridea, strideb, hev_thresh)) \
383  vpn ## _filter_common(dst + i * stridea, strideb, 1); \
384  else \
385  filter_mbedge(dst + i * stridea, strideb); \
386  } \
387 } \
388  \
389 static maybe_inline \
390 void vpn ## _ ## dir ## _loop_filter ## size ## _inner_c(uint8_t *dst, \
391  ptrdiff_t stride, \
392  int flim_E, \
393  int flim_I, \
394  int hev_thresh) \
395 { \
396  int i; \
397  for (i = 0; i < size; i++) \
398  if (vpn ## _normal_limit(dst + i * stridea, strideb, \
399  flim_E, flim_I)) { \
400  int hv = hev(dst + i * stridea, strideb, hev_thresh); \
401  if (hv) \
402  vpn ## _filter_common(dst + i * stridea, strideb, 1); \
403  else \
404  vpn ## _filter_common(dst + i * stridea, strideb, 0); \
405  } \
406 }
407 
408 #define UV_LOOP_FILTER(vpn, dir, stridea, strideb) \
409 LOOP_FILTER(vpn, dir, 8, stridea, strideb, av_always_inline) \
410 static void vpn ## _ ## dir ## _loop_filter8uv_c(uint8_t *dstU, \
411  uint8_t *dstV, \
412  ptrdiff_t stride, int fE, \
413  int fI, int hev_thresh) \
414 { \
415  vpn ## _ ## dir ## _loop_filter8_c(dstU, stride, fE, fI, hev_thresh); \
416  vpn ## _ ## dir ## _loop_filter8_c(dstV, stride, fE, fI, hev_thresh); \
417 } \
418  \
419 static void vpn ## _ ## dir ## _loop_filter8uv_inner_c(uint8_t *dstU, \
420  uint8_t *dstV, \
421  ptrdiff_t stride, \
422  int fE, int fI, \
423  int hev_thresh) \
424 { \
425  vpn ## _ ## dir ## _loop_filter8_inner_c(dstU, stride, fE, fI, \
426  hev_thresh); \
427  vpn ## _ ## dir ## _loop_filter8_inner_c(dstV, stride, fE, fI, \
428  hev_thresh); \
429 }
430 
431 #define LOOP_FILTER_SIMPLE(vpn) \
432 static void vpn ## _v_loop_filter_simple_c(uint8_t *dst, ptrdiff_t stride, \
433  int flim) \
434 { \
435  int i; \
436  for (i = 0; i < 16; i++) \
437  if (vpn ## _simple_limit(dst + i, stride, flim)) \
438  vpn ## _filter_common(dst + i, stride, 1); \
439 } \
440  \
441 static void vpn ## _h_loop_filter_simple_c(uint8_t *dst, ptrdiff_t stride, \
442  int flim) \
443 { \
444  int i; \
445  for (i = 0; i < 16; i++) \
446  if (vpn ## _simple_limit(dst + i * stride, 1, flim)) \
447  vpn ## _filter_common(dst + i * stride, 1, 1); \
448 }
449 
450 #define LOOP_FILTERS(vpn) \
451  LOOP_FILTER(vpn, v, 16, 1, stride, ) \
452  LOOP_FILTER(vpn, h, 16, stride, 1, ) \
453  UV_LOOP_FILTER(vpn, v, 1, stride) \
454  UV_LOOP_FILTER(vpn, h, stride, 1) \
455  LOOP_FILTER_SIMPLE(vpn) \
456 
457 static const uint8_t subpel_filters[7][6] = {
458  { 0, 6, 123, 12, 1, 0 },
459  { 2, 11, 108, 36, 8, 1 },
460  { 0, 9, 93, 50, 6, 0 },
461  { 3, 16, 77, 77, 16, 3 },
462  { 0, 6, 50, 93, 9, 0 },
463  { 1, 8, 36, 108, 11, 2 },
464  { 0, 1, 12, 123, 6, 0 },
465 };
466 
467 #define PUT_PIXELS(WIDTH) \
468 static void put_vp8_pixels ## WIDTH ## _c(uint8_t *dst, ptrdiff_t dststride, \
469  uint8_t *src, ptrdiff_t srcstride, \
470  int h, int x, int y) \
471 { \
472  int i; \
473  for (i = 0; i < h; i++, dst += dststride, src += srcstride) \
474  memcpy(dst, src, WIDTH); \
475 }
476 
477 PUT_PIXELS(16)
478 PUT_PIXELS(8)
479 PUT_PIXELS(4)
480 
481 #define FILTER_6TAP(src, F, stride) \
482  cm[(F[2] * src[x + 0 * stride] - F[1] * src[x - 1 * stride] + \
483  F[0] * src[x - 2 * stride] + F[3] * src[x + 1 * stride] - \
484  F[4] * src[x + 2 * stride] + F[5] * src[x + 3 * stride] + 64) >> 7]
485 
486 #define FILTER_4TAP(src, F, stride) \
487  cm[(F[2] * src[x + 0 * stride] - F[1] * src[x - 1 * stride] + \
488  F[3] * src[x + 1 * stride] - F[4] * src[x + 2 * stride] + 64) >> 7]
489 
490 #define VP8_EPEL_H(SIZE, TAPS) \
491 static void put_vp8_epel ## SIZE ## _h ## TAPS ## _c(uint8_t *dst, \
492  ptrdiff_t dststride, \
493  uint8_t *src, \
494  ptrdiff_t srcstride, \
495  int h, int mx, int my) \
496 { \
497  const uint8_t *filter = subpel_filters[mx - 1]; \
498  const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP; \
499  int x, y; \
500  for (y = 0; y < h; y++) { \
501  for (x = 0; x < SIZE; x++) \
502  dst[x] = FILTER_ ## TAPS ## TAP(src, filter, 1); \
503  dst += dststride; \
504  src += srcstride; \
505  } \
506 }
507 
508 #define VP8_EPEL_V(SIZE, TAPS) \
509 static void put_vp8_epel ## SIZE ## _v ## TAPS ## _c(uint8_t *dst, \
510  ptrdiff_t dststride, \
511  uint8_t *src, \
512  ptrdiff_t srcstride, \
513  int h, int mx, int my) \
514 { \
515  const uint8_t *filter = subpel_filters[my - 1]; \
516  const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP; \
517  int x, y; \
518  for (y = 0; y < h; y++) { \
519  for (x = 0; x < SIZE; x++) \
520  dst[x] = FILTER_ ## TAPS ## TAP(src, filter, srcstride); \
521  dst += dststride; \
522  src += srcstride; \
523  } \
524 }
525 
526 #define VP8_EPEL_HV(SIZE, HTAPS, VTAPS) \
527 static void \
528 put_vp8_epel ## SIZE ## _h ## HTAPS ## v ## VTAPS ## _c(uint8_t *dst, \
529  ptrdiff_t dststride, \
530  uint8_t *src, \
531  ptrdiff_t srcstride, \
532  int h, int mx, \
533  int my) \
534 { \
535  const uint8_t *filter = subpel_filters[mx - 1]; \
536  const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP; \
537  int x, y; \
538  uint8_t tmp_array[(2 * SIZE + VTAPS - 1) * SIZE]; \
539  uint8_t *tmp = tmp_array; \
540  src -= (2 - (VTAPS == 4)) * srcstride; \
541  \
542  for (y = 0; y < h + VTAPS - 1; y++) { \
543  for (x = 0; x < SIZE; x++) \
544  tmp[x] = FILTER_ ## HTAPS ## TAP(src, filter, 1); \
545  tmp += SIZE; \
546  src += srcstride; \
547  } \
548  tmp = tmp_array + (2 - (VTAPS == 4)) * SIZE; \
549  filter = subpel_filters[my - 1]; \
550  \
551  for (y = 0; y < h; y++) { \
552  for (x = 0; x < SIZE; x++) \
553  dst[x] = FILTER_ ## VTAPS ## TAP(tmp, filter, SIZE); \
554  dst += dststride; \
555  tmp += SIZE; \
556  } \
557 }
558 
559 VP8_EPEL_H(16, 4)
560 VP8_EPEL_H(8, 4)
561 VP8_EPEL_H(4, 4)
562 VP8_EPEL_H(16, 6)
563 VP8_EPEL_H(8, 6)
564 VP8_EPEL_H(4, 6)
565 VP8_EPEL_V(16, 4)
566 VP8_EPEL_V(8, 4)
567 VP8_EPEL_V(4, 4)
568 VP8_EPEL_V(16, 6)
569 VP8_EPEL_V(8, 6)
570 VP8_EPEL_V(4, 6)
571 
572 VP8_EPEL_HV(16, 4, 4)
573 VP8_EPEL_HV(8, 4, 4)
574 VP8_EPEL_HV(4, 4, 4)
575 VP8_EPEL_HV(16, 4, 6)
576 VP8_EPEL_HV(8, 4, 6)
577 VP8_EPEL_HV(4, 4, 6)
578 VP8_EPEL_HV(16, 6, 4)
579 VP8_EPEL_HV(8, 6, 4)
580 VP8_EPEL_HV(4, 6, 4)
581 VP8_EPEL_HV(16, 6, 6)
582 VP8_EPEL_HV(8, 6, 6)
583 VP8_EPEL_HV(4, 6, 6)
584 
585 #define VP8_BILINEAR(SIZE) \
586 static void put_vp8_bilinear ## SIZE ## _h_c(uint8_t *dst, ptrdiff_t dstride, \
587  uint8_t *src, ptrdiff_t sstride, \
588  int h, int mx, int my) \
589 { \
590  int a = 8 - mx, b = mx; \
591  int x, y; \
592  for (y = 0; y < h; y++) { \
593  for (x = 0; x < SIZE; x++) \
594  dst[x] = (a * src[x] + b * src[x + 1] + 4) >> 3; \
595  dst += dstride; \
596  src += sstride; \
597  } \
598 } \
599  \
600 static void put_vp8_bilinear ## SIZE ## _v_c(uint8_t *dst, ptrdiff_t dstride, \
601  uint8_t *src, ptrdiff_t sstride, \
602  int h, int mx, int my) \
603 { \
604  int c = 8 - my, d = my; \
605  int x, y; \
606  for (y = 0; y < h; y++) { \
607  for (x = 0; x < SIZE; x++) \
608  dst[x] = (c * src[x] + d * src[x + sstride] + 4) >> 3; \
609  dst += dstride; \
610  src += sstride; \
611  } \
612 } \
613  \
614 static void put_vp8_bilinear ## SIZE ## _hv_c(uint8_t *dst, \
615  ptrdiff_t dstride, \
616  uint8_t *src, \
617  ptrdiff_t sstride, \
618  int h, int mx, int my) \
619 { \
620  int a = 8 - mx, b = mx; \
621  int c = 8 - my, d = my; \
622  int x, y; \
623  uint8_t tmp_array[(2 * SIZE + 1) * SIZE]; \
624  uint8_t *tmp = tmp_array; \
625  for (y = 0; y < h + 1; y++) { \
626  for (x = 0; x < SIZE; x++) \
627  tmp[x] = (a * src[x] + b * src[x + 1] + 4) >> 3; \
628  tmp += SIZE; \
629  src += sstride; \
630  } \
631  tmp = tmp_array; \
632  for (y = 0; y < h; y++) { \
633  for (x = 0; x < SIZE; x++) \
634  dst[x] = (c * tmp[x] + d * tmp[x + SIZE] + 4) >> 3; \
635  dst += dstride; \
636  tmp += SIZE; \
637  } \
638 }
639 
640 VP8_BILINEAR(16)
641 VP8_BILINEAR(8)
642 VP8_BILINEAR(4)
643 
644 #define VP78_MC_FUNC(IDX, SIZE) \
645  dsp->put_vp8_epel_pixels_tab[IDX][0][0] = put_vp8_pixels ## SIZE ## _c; \
646  dsp->put_vp8_epel_pixels_tab[IDX][0][1] = put_vp8_epel ## SIZE ## _h4_c; \
647  dsp->put_vp8_epel_pixels_tab[IDX][0][2] = put_vp8_epel ## SIZE ## _h6_c; \
648  dsp->put_vp8_epel_pixels_tab[IDX][1][0] = put_vp8_epel ## SIZE ## _v4_c; \
649  dsp->put_vp8_epel_pixels_tab[IDX][1][1] = put_vp8_epel ## SIZE ## _h4v4_c; \
650  dsp->put_vp8_epel_pixels_tab[IDX][1][2] = put_vp8_epel ## SIZE ## _h6v4_c; \
651  dsp->put_vp8_epel_pixels_tab[IDX][2][0] = put_vp8_epel ## SIZE ## _v6_c; \
652  dsp->put_vp8_epel_pixels_tab[IDX][2][1] = put_vp8_epel ## SIZE ## _h4v6_c; \
653  dsp->put_vp8_epel_pixels_tab[IDX][2][2] = put_vp8_epel ## SIZE ## _h6v6_c
654 
655 #define VP78_BILINEAR_MC_FUNC(IDX, SIZE) \
656  dsp->put_vp8_bilinear_pixels_tab[IDX][0][0] = put_vp8_pixels ## SIZE ## _c; \
657  dsp->put_vp8_bilinear_pixels_tab[IDX][0][1] = put_vp8_bilinear ## SIZE ## _h_c; \
658  dsp->put_vp8_bilinear_pixels_tab[IDX][0][2] = put_vp8_bilinear ## SIZE ## _h_c; \
659  dsp->put_vp8_bilinear_pixels_tab[IDX][1][0] = put_vp8_bilinear ## SIZE ## _v_c; \
660  dsp->put_vp8_bilinear_pixels_tab[IDX][1][1] = put_vp8_bilinear ## SIZE ## _hv_c; \
661  dsp->put_vp8_bilinear_pixels_tab[IDX][1][2] = put_vp8_bilinear ## SIZE ## _hv_c; \
662  dsp->put_vp8_bilinear_pixels_tab[IDX][2][0] = put_vp8_bilinear ## SIZE ## _v_c; \
663  dsp->put_vp8_bilinear_pixels_tab[IDX][2][1] = put_vp8_bilinear ## SIZE ## _hv_c; \
664  dsp->put_vp8_bilinear_pixels_tab[IDX][2][2] = put_vp8_bilinear ## SIZE ## _hv_c
665 
666 av_cold void ff_vp78dsp_init(VP8DSPContext *dsp)
667 {
668  VP78_MC_FUNC(0, 16);
669  VP78_MC_FUNC(1, 8);
670  VP78_MC_FUNC(2, 4);
671 
672  VP78_BILINEAR_MC_FUNC(0, 16);
673  VP78_BILINEAR_MC_FUNC(1, 8);
674  VP78_BILINEAR_MC_FUNC(2, 4);
675 
676  if (ARCH_ARM)
677  ff_vp78dsp_init_arm(dsp);
678  if (ARCH_PPC)
679  ff_vp78dsp_init_ppc(dsp);
680  if (ARCH_X86)
681  ff_vp78dsp_init_x86(dsp);
682 }
683 
684 #if CONFIG_VP7_DECODER
685 LOOP_FILTERS(vp7)
686 
687 av_cold void ff_vp7dsp_init(VP8DSPContext *dsp)
688 {
689  dsp->vp8_luma_dc_wht = vp7_luma_dc_wht_c;
690  dsp->vp8_luma_dc_wht_dc = vp7_luma_dc_wht_dc_c;
691  dsp->vp8_idct_add = vp7_idct_add_c;
692  dsp->vp8_idct_dc_add = vp7_idct_dc_add_c;
693  dsp->vp8_idct_dc_add4y = vp7_idct_dc_add4y_c;
694  dsp->vp8_idct_dc_add4uv = vp7_idct_dc_add4uv_c;
695 
696  dsp->vp8_v_loop_filter16y = vp7_v_loop_filter16_c;
697  dsp->vp8_h_loop_filter16y = vp7_h_loop_filter16_c;
698  dsp->vp8_v_loop_filter8uv = vp7_v_loop_filter8uv_c;
699  dsp->vp8_h_loop_filter8uv = vp7_h_loop_filter8uv_c;
700 
701  dsp->vp8_v_loop_filter16y_inner = vp7_v_loop_filter16_inner_c;
702  dsp->vp8_h_loop_filter16y_inner = vp7_h_loop_filter16_inner_c;
703  dsp->vp8_v_loop_filter8uv_inner = vp7_v_loop_filter8uv_inner_c;
704  dsp->vp8_h_loop_filter8uv_inner = vp7_h_loop_filter8uv_inner_c;
705 
706  dsp->vp8_v_loop_filter_simple = vp7_v_loop_filter_simple_c;
707  dsp->vp8_h_loop_filter_simple = vp7_h_loop_filter_simple_c;
708 }
709 #endif /* CONFIG_VP7_DECODER */
710 
711 #if CONFIG_VP8_DECODER
712 LOOP_FILTERS(vp8)
713 
714 av_cold void ff_vp8dsp_init(VP8DSPContext *dsp)
715 {
716  dsp->vp8_luma_dc_wht = vp8_luma_dc_wht_c;
717  dsp->vp8_luma_dc_wht_dc = vp8_luma_dc_wht_dc_c;
718  dsp->vp8_idct_add = vp8_idct_add_c;
719  dsp->vp8_idct_dc_add = vp8_idct_dc_add_c;
720  dsp->vp8_idct_dc_add4y = vp8_idct_dc_add4y_c;
721  dsp->vp8_idct_dc_add4uv = vp8_idct_dc_add4uv_c;
722 
723  dsp->vp8_v_loop_filter16y = vp8_v_loop_filter16_c;
724  dsp->vp8_h_loop_filter16y = vp8_h_loop_filter16_c;
725  dsp->vp8_v_loop_filter8uv = vp8_v_loop_filter8uv_c;
726  dsp->vp8_h_loop_filter8uv = vp8_h_loop_filter8uv_c;
727 
728  dsp->vp8_v_loop_filter16y_inner = vp8_v_loop_filter16_inner_c;
729  dsp->vp8_h_loop_filter16y_inner = vp8_h_loop_filter16_inner_c;
730  dsp->vp8_v_loop_filter8uv_inner = vp8_v_loop_filter8uv_inner_c;
731  dsp->vp8_h_loop_filter8uv_inner = vp8_h_loop_filter8uv_inner_c;
732 
733  dsp->vp8_v_loop_filter_simple = vp8_v_loop_filter_simple_c;
734  dsp->vp8_h_loop_filter_simple = vp8_h_loop_filter_simple_c;
735 
736  if (ARCH_ARM)
737  ff_vp8dsp_init_arm(dsp);
738  if (ARCH_X86)
739  ff_vp8dsp_init_x86(dsp);
740  if (ARCH_MIPS)
741  ff_vp8dsp_init_mips(dsp);
742 }
743 #endif /* CONFIG_VP8_DECODER */
val
const char const char void * val
Definition: avisynth_c.h:771
MK_IDCT_DC_ADD4_C
#define MK_IDCT_DC_ADD4_C(name)
Definition: vp8dsp.c:34
ff_vp7dsp_init
void ff_vp7dsp_init(VP8DSPContext *c)
subpel_filters
static const uint8_t subpel_filters[7][6]
Definition: vp8dsp.c:457
a0
#define a0
Definition: regdef.h:46
ff_vp78dsp_init_ppc
av_cold void ff_vp78dsp_init_ppc(VP8DSPContext *c)
Definition: vp8dsp_altivec.c:330
MAX_NEG_CROP
#define MAX_NEG_CROP
Definition: mathops.h:31
vp8_filter_common
static av_always_inline void vp8_filter_common(uint8_t *p, ptrdiff_t stride, int is4tap)
Definition: vp8dsp.c:303
a1
#define a1
Definition: regdef.h:47
ff_vp78dsp_init
av_cold void ff_vp78dsp_init(VP8DSPContext *dsp)
Definition: vp8dsp.c:666
ff_vp8dsp_init_arm
av_cold void ff_vp8dsp_init_arm(VP8DSPContext *dsp)
Definition: vp8dsp_init_arm.c:36
q1
static const uint8_t q1[256]
Definition: twofish.c:96
ff_vp78dsp_init_arm
av_cold void ff_vp78dsp_init_arm(VP8DSPContext *dsp)
Definition: vp8dsp_init_arm.c:26
block
static int16_t block[64]
Definition: dct.c:115
filter_mbedge
static av_always_inline void filter_mbedge(uint8_t *p, ptrdiff_t stride)
Definition: vp8dsp.c:349
uint8_t
uint8_t
Definition: audio_convert.c:194
av_cold
#define av_cold
Definition: attributes.h:82
clip_int8
#define clip_int8(n)
Definition: vp8dsp.c:259
VP8_EPEL_H
#define VP8_EPEL_H(SIZE, TAPS)
Definition: vp8dsp.c:490
vp8dsp.h
VP8 compatible video decoder.
t0
#define t0
Definition: regdef.h:28
ff_vp8dsp_init_mips
av_cold void ff_vp8dsp_init_mips(VP8DSPContext *dsp)
Definition: vp8dsp_init_mips.c:194
c1
static const uint64_t c1
Definition: murmur3.c:49
cm
#define cm
Definition: dvbsubdec.c:37
vp8_simple_limit
static av_always_inline int vp8_simple_limit(uint8_t *p, ptrdiff_t stride, int flim)
Definition: vp8dsp.c:316
VP78_BILINEAR_MC_FUNC
#define VP78_BILINEAR_MC_FUNC(IDX, SIZE)
Definition: vp8dsp.c:655
NORMAL_LIMIT
#define NORMAL_LIMIT(vpn)
E - limit at the macroblock edge I - limit for interior difference.
Definition: vp8dsp.c:327
t1
#define t1
Definition: regdef.h:29
t3
#define t3
Definition: regdef.h:31
VP8_BILINEAR
#define VP8_BILINEAR(SIZE)
Definition: vp8dsp.c:585
q0
static const uint8_t q0[256]
Definition: twofish.c:77
FFMIN
#define FFMIN(a, b)
Definition: common.h:96
VP8_EPEL_HV
#define VP8_EPEL_HV(SIZE, HTAPS, VTAPS)
Definition: vp8dsp.c:526
vp7_simple_limit
static av_always_inline int vp7_simple_limit(uint8_t *p, ptrdiff_t stride, int flim)
Definition: vp8dsp.c:309
a2
#define a2
Definition: regdef.h:48
FFABS
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
Definition: common.h:72
IS_VP8
#define IS_VP8
Definition: vp8dsp.h:104
ff_vp78dsp_init_x86
void ff_vp78dsp_init_x86(VP8DSPContext *c)
Definition: vp8dsp_init.c:319
filter_common
static av_always_inline void filter_common(uint8_t *p, ptrdiff_t stride, int is4tap, int is_vp7)
Definition: vp8dsp.c:261
VP8_EPEL_V
#define VP8_EPEL_V(SIZE, TAPS)
Definition: vp8dsp.c:508
ff_vp8dsp_init_x86
void ff_vp8dsp_init_x86(VP8DSPContext *c)
Definition: vp8dsp_init.c:369
LOAD_PIXELS
#define LOAD_PIXELS
Definition: vp8dsp.c:249
hev
static av_always_inline int hev(uint8_t *p, ptrdiff_t stride, int thresh)
Definition: vp8dsp.c:343
stride
GLint GLenum GLboolean GLsizei stride
Definition: opengl_enc.c:105
int
int
Definition: ffmpeg_filter.c:190
AV_ZERO64
#define AV_ZERO64(d)
Definition: intreadwrite.h:623
common.h
common internal and external API header
ff_crop_tab
#define ff_crop_tab
Definition: motionpixels_tablegen.c:26
dc
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=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);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_AARCH64) ff_audio_convert_init_aarch64(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_log(ac->avr, AV_LOG_TRACE,"%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
Definition: audio_convert.c:194
IS_VP7
#define IS_VP7
Definition: vp8dsp.h:103
av_always_inline
#define av_always_inline
Definition: attributes.h:39
stride
#define stride
LOOP_FILTERS
#define LOOP_FILTERS(vpn)
Definition: vp8dsp.c:450
ff_vp8dsp_init
void ff_vp8dsp_init(VP8DSPContext *c)
VP78_MC_FUNC
#define VP78_MC_FUNC(IDX, SIZE)
Definition: vp8dsp.c:644
PUT_PIXELS
#define PUT_PIXELS(WIDTH)
Definition: vp8dsp.c:467
t2
#define t2
Definition: regdef.h:30
vp7_filter_common
static av_always_inline void vp7_filter_common(uint8_t *p, ptrdiff_t stride, int is4tap)
Definition: vp8dsp.c:297
a
a
Definition: h264pred_template.c:468
tmp
static uint8_t tmp[11]
Definition: aes_ctr.c:26
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