FFmpeg
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me_cmp.c
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1 /*
2  * DSP utils
3  * Copyright (c) 2000, 2001 Fabrice Bellard
4  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
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 #include "libavutil/attributes.h"
24 #include "libavutil/internal.h"
25 #include "avcodec.h"
26 #include "copy_block.h"
27 #include "simple_idct.h"
28 #include "me_cmp.h"
29 #include "mpegvideo.h"
30 #include "config.h"
31 
32 /* (i - 256) * (i - 256) */
33 const uint32_t ff_square_tab[512] = {
34  65536, 65025, 64516, 64009, 63504, 63001, 62500, 62001, 61504, 61009, 60516, 60025, 59536, 59049, 58564, 58081,
35  57600, 57121, 56644, 56169, 55696, 55225, 54756, 54289, 53824, 53361, 52900, 52441, 51984, 51529, 51076, 50625,
36  50176, 49729, 49284, 48841, 48400, 47961, 47524, 47089, 46656, 46225, 45796, 45369, 44944, 44521, 44100, 43681,
37  43264, 42849, 42436, 42025, 41616, 41209, 40804, 40401, 40000, 39601, 39204, 38809, 38416, 38025, 37636, 37249,
38  36864, 36481, 36100, 35721, 35344, 34969, 34596, 34225, 33856, 33489, 33124, 32761, 32400, 32041, 31684, 31329,
39  30976, 30625, 30276, 29929, 29584, 29241, 28900, 28561, 28224, 27889, 27556, 27225, 26896, 26569, 26244, 25921,
40  25600, 25281, 24964, 24649, 24336, 24025, 23716, 23409, 23104, 22801, 22500, 22201, 21904, 21609, 21316, 21025,
41  20736, 20449, 20164, 19881, 19600, 19321, 19044, 18769, 18496, 18225, 17956, 17689, 17424, 17161, 16900, 16641,
42  16384, 16129, 15876, 15625, 15376, 15129, 14884, 14641, 14400, 14161, 13924, 13689, 13456, 13225, 12996, 12769,
43  12544, 12321, 12100, 11881, 11664, 11449, 11236, 11025, 10816, 10609, 10404, 10201, 10000, 9801, 9604, 9409,
44  9216, 9025, 8836, 8649, 8464, 8281, 8100, 7921, 7744, 7569, 7396, 7225, 7056, 6889, 6724, 6561,
45  6400, 6241, 6084, 5929, 5776, 5625, 5476, 5329, 5184, 5041, 4900, 4761, 4624, 4489, 4356, 4225,
46  4096, 3969, 3844, 3721, 3600, 3481, 3364, 3249, 3136, 3025, 2916, 2809, 2704, 2601, 2500, 2401,
47  2304, 2209, 2116, 2025, 1936, 1849, 1764, 1681, 1600, 1521, 1444, 1369, 1296, 1225, 1156, 1089,
48  1024, 961, 900, 841, 784, 729, 676, 625, 576, 529, 484, 441, 400, 361, 324, 289,
49  256, 225, 196, 169, 144, 121, 100, 81, 64, 49, 36, 25, 16, 9, 4, 1,
50  0, 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, 169, 196, 225,
51  256, 289, 324, 361, 400, 441, 484, 529, 576, 625, 676, 729, 784, 841, 900, 961,
52  1024, 1089, 1156, 1225, 1296, 1369, 1444, 1521, 1600, 1681, 1764, 1849, 1936, 2025, 2116, 2209,
53  2304, 2401, 2500, 2601, 2704, 2809, 2916, 3025, 3136, 3249, 3364, 3481, 3600, 3721, 3844, 3969,
54  4096, 4225, 4356, 4489, 4624, 4761, 4900, 5041, 5184, 5329, 5476, 5625, 5776, 5929, 6084, 6241,
55  6400, 6561, 6724, 6889, 7056, 7225, 7396, 7569, 7744, 7921, 8100, 8281, 8464, 8649, 8836, 9025,
56  9216, 9409, 9604, 9801, 10000, 10201, 10404, 10609, 10816, 11025, 11236, 11449, 11664, 11881, 12100, 12321,
57  12544, 12769, 12996, 13225, 13456, 13689, 13924, 14161, 14400, 14641, 14884, 15129, 15376, 15625, 15876, 16129,
58  16384, 16641, 16900, 17161, 17424, 17689, 17956, 18225, 18496, 18769, 19044, 19321, 19600, 19881, 20164, 20449,
59  20736, 21025, 21316, 21609, 21904, 22201, 22500, 22801, 23104, 23409, 23716, 24025, 24336, 24649, 24964, 25281,
60  25600, 25921, 26244, 26569, 26896, 27225, 27556, 27889, 28224, 28561, 28900, 29241, 29584, 29929, 30276, 30625,
61  30976, 31329, 31684, 32041, 32400, 32761, 33124, 33489, 33856, 34225, 34596, 34969, 35344, 35721, 36100, 36481,
62  36864, 37249, 37636, 38025, 38416, 38809, 39204, 39601, 40000, 40401, 40804, 41209, 41616, 42025, 42436, 42849,
63  43264, 43681, 44100, 44521, 44944, 45369, 45796, 46225, 46656, 47089, 47524, 47961, 48400, 48841, 49284, 49729,
64  50176, 50625, 51076, 51529, 51984, 52441, 52900, 53361, 53824, 54289, 54756, 55225, 55696, 56169, 56644, 57121,
65  57600, 58081, 58564, 59049, 59536, 60025, 60516, 61009, 61504, 62001, 62500, 63001, 63504, 64009, 64516, 65025,
66 };
67 
68 static int sse4_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
69  ptrdiff_t stride, int h)
70 {
71  int s = 0, i;
72  const uint32_t *sq = ff_square_tab + 256;
73 
74  for (i = 0; i < h; i++) {
75  s += sq[pix1[0] - pix2[0]];
76  s += sq[pix1[1] - pix2[1]];
77  s += sq[pix1[2] - pix2[2]];
78  s += sq[pix1[3] - pix2[3]];
79  pix1 += stride;
80  pix2 += stride;
81  }
82  return s;
83 }
84 
85 static int sse8_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
86  ptrdiff_t stride, int h)
87 {
88  int s = 0, i;
89  const uint32_t *sq = ff_square_tab + 256;
90 
91  for (i = 0; i < h; i++) {
92  s += sq[pix1[0] - pix2[0]];
93  s += sq[pix1[1] - pix2[1]];
94  s += sq[pix1[2] - pix2[2]];
95  s += sq[pix1[3] - pix2[3]];
96  s += sq[pix1[4] - pix2[4]];
97  s += sq[pix1[5] - pix2[5]];
98  s += sq[pix1[6] - pix2[6]];
99  s += sq[pix1[7] - pix2[7]];
100  pix1 += stride;
101  pix2 += stride;
102  }
103  return s;
104 }
105 
106 static int sse16_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
107  ptrdiff_t stride, int h)
108 {
109  int s = 0, i;
110  const uint32_t *sq = ff_square_tab + 256;
111 
112  for (i = 0; i < h; i++) {
113  s += sq[pix1[0] - pix2[0]];
114  s += sq[pix1[1] - pix2[1]];
115  s += sq[pix1[2] - pix2[2]];
116  s += sq[pix1[3] - pix2[3]];
117  s += sq[pix1[4] - pix2[4]];
118  s += sq[pix1[5] - pix2[5]];
119  s += sq[pix1[6] - pix2[6]];
120  s += sq[pix1[7] - pix2[7]];
121  s += sq[pix1[8] - pix2[8]];
122  s += sq[pix1[9] - pix2[9]];
123  s += sq[pix1[10] - pix2[10]];
124  s += sq[pix1[11] - pix2[11]];
125  s += sq[pix1[12] - pix2[12]];
126  s += sq[pix1[13] - pix2[13]];
127  s += sq[pix1[14] - pix2[14]];
128  s += sq[pix1[15] - pix2[15]];
129 
130  pix1 += stride;
131  pix2 += stride;
132  }
133  return s;
134 }
135 
136 static int sum_abs_dctelem_c(int16_t *block)
137 {
138  int sum = 0, i;
139 
140  for (i = 0; i < 64; i++)
141  sum += FFABS(block[i]);
142  return sum;
143 }
144 
145 #define avg2(a, b) (((a) + (b) + 1) >> 1)
146 #define avg4(a, b, c, d) (((a) + (b) + (c) + (d) + 2) >> 2)
147 
148 static inline int pix_abs16_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
149  ptrdiff_t stride, int h)
150 {
151  int s = 0, i;
152 
153  for (i = 0; i < h; i++) {
154  s += abs(pix1[0] - pix2[0]);
155  s += abs(pix1[1] - pix2[1]);
156  s += abs(pix1[2] - pix2[2]);
157  s += abs(pix1[3] - pix2[3]);
158  s += abs(pix1[4] - pix2[4]);
159  s += abs(pix1[5] - pix2[5]);
160  s += abs(pix1[6] - pix2[6]);
161  s += abs(pix1[7] - pix2[7]);
162  s += abs(pix1[8] - pix2[8]);
163  s += abs(pix1[9] - pix2[9]);
164  s += abs(pix1[10] - pix2[10]);
165  s += abs(pix1[11] - pix2[11]);
166  s += abs(pix1[12] - pix2[12]);
167  s += abs(pix1[13] - pix2[13]);
168  s += abs(pix1[14] - pix2[14]);
169  s += abs(pix1[15] - pix2[15]);
170  pix1 += stride;
171  pix2 += stride;
172  }
173  return s;
174 }
175 
176 static inline int pix_median_abs16_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
177  ptrdiff_t stride, int h)
178 {
179  int s = 0, i, j;
180 
181 #define V(x) (pix1[x] - pix2[x])
182 
183  s += abs(V(0));
184  s += abs(V(1) - V(0));
185  s += abs(V(2) - V(1));
186  s += abs(V(3) - V(2));
187  s += abs(V(4) - V(3));
188  s += abs(V(5) - V(4));
189  s += abs(V(6) - V(5));
190  s += abs(V(7) - V(6));
191  s += abs(V(8) - V(7));
192  s += abs(V(9) - V(8));
193  s += abs(V(10) - V(9));
194  s += abs(V(11) - V(10));
195  s += abs(V(12) - V(11));
196  s += abs(V(13) - V(12));
197  s += abs(V(14) - V(13));
198  s += abs(V(15) - V(14));
199 
200  pix1 += stride;
201  pix2 += stride;
202 
203  for (i = 1; i < h; i++) {
204  s += abs(V(0) - V(-stride));
205  for (j = 1; j < 16; j++)
206  s += abs(V(j) - mid_pred(V(j-stride), V(j-1), V(j-stride) + V(j-1) - V(j-stride-1)));
207  pix1 += stride;
208  pix2 += stride;
209 
210  }
211 #undef V
212  return s;
213 }
214 
215 static int pix_abs16_x2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
216  ptrdiff_t stride, int h)
217 {
218  int s = 0, i;
219 
220  for (i = 0; i < h; i++) {
221  s += abs(pix1[0] - avg2(pix2[0], pix2[1]));
222  s += abs(pix1[1] - avg2(pix2[1], pix2[2]));
223  s += abs(pix1[2] - avg2(pix2[2], pix2[3]));
224  s += abs(pix1[3] - avg2(pix2[3], pix2[4]));
225  s += abs(pix1[4] - avg2(pix2[4], pix2[5]));
226  s += abs(pix1[5] - avg2(pix2[5], pix2[6]));
227  s += abs(pix1[6] - avg2(pix2[6], pix2[7]));
228  s += abs(pix1[7] - avg2(pix2[7], pix2[8]));
229  s += abs(pix1[8] - avg2(pix2[8], pix2[9]));
230  s += abs(pix1[9] - avg2(pix2[9], pix2[10]));
231  s += abs(pix1[10] - avg2(pix2[10], pix2[11]));
232  s += abs(pix1[11] - avg2(pix2[11], pix2[12]));
233  s += abs(pix1[12] - avg2(pix2[12], pix2[13]));
234  s += abs(pix1[13] - avg2(pix2[13], pix2[14]));
235  s += abs(pix1[14] - avg2(pix2[14], pix2[15]));
236  s += abs(pix1[15] - avg2(pix2[15], pix2[16]));
237  pix1 += stride;
238  pix2 += stride;
239  }
240  return s;
241 }
242 
243 static int pix_abs16_y2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
244  ptrdiff_t stride, int h)
245 {
246  int s = 0, i;
247  uint8_t *pix3 = pix2 + stride;
248 
249  for (i = 0; i < h; i++) {
250  s += abs(pix1[0] - avg2(pix2[0], pix3[0]));
251  s += abs(pix1[1] - avg2(pix2[1], pix3[1]));
252  s += abs(pix1[2] - avg2(pix2[2], pix3[2]));
253  s += abs(pix1[3] - avg2(pix2[3], pix3[3]));
254  s += abs(pix1[4] - avg2(pix2[4], pix3[4]));
255  s += abs(pix1[5] - avg2(pix2[5], pix3[5]));
256  s += abs(pix1[6] - avg2(pix2[6], pix3[6]));
257  s += abs(pix1[7] - avg2(pix2[7], pix3[7]));
258  s += abs(pix1[8] - avg2(pix2[8], pix3[8]));
259  s += abs(pix1[9] - avg2(pix2[9], pix3[9]));
260  s += abs(pix1[10] - avg2(pix2[10], pix3[10]));
261  s += abs(pix1[11] - avg2(pix2[11], pix3[11]));
262  s += abs(pix1[12] - avg2(pix2[12], pix3[12]));
263  s += abs(pix1[13] - avg2(pix2[13], pix3[13]));
264  s += abs(pix1[14] - avg2(pix2[14], pix3[14]));
265  s += abs(pix1[15] - avg2(pix2[15], pix3[15]));
266  pix1 += stride;
267  pix2 += stride;
268  pix3 += stride;
269  }
270  return s;
271 }
272 
273 static int pix_abs16_xy2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
274  ptrdiff_t stride, int h)
275 {
276  int s = 0, i;
277  uint8_t *pix3 = pix2 + stride;
278 
279  for (i = 0; i < h; i++) {
280  s += abs(pix1[0] - avg4(pix2[0], pix2[1], pix3[0], pix3[1]));
281  s += abs(pix1[1] - avg4(pix2[1], pix2[2], pix3[1], pix3[2]));
282  s += abs(pix1[2] - avg4(pix2[2], pix2[3], pix3[2], pix3[3]));
283  s += abs(pix1[3] - avg4(pix2[3], pix2[4], pix3[3], pix3[4]));
284  s += abs(pix1[4] - avg4(pix2[4], pix2[5], pix3[4], pix3[5]));
285  s += abs(pix1[5] - avg4(pix2[5], pix2[6], pix3[5], pix3[6]));
286  s += abs(pix1[6] - avg4(pix2[6], pix2[7], pix3[6], pix3[7]));
287  s += abs(pix1[7] - avg4(pix2[7], pix2[8], pix3[7], pix3[8]));
288  s += abs(pix1[8] - avg4(pix2[8], pix2[9], pix3[8], pix3[9]));
289  s += abs(pix1[9] - avg4(pix2[9], pix2[10], pix3[9], pix3[10]));
290  s += abs(pix1[10] - avg4(pix2[10], pix2[11], pix3[10], pix3[11]));
291  s += abs(pix1[11] - avg4(pix2[11], pix2[12], pix3[11], pix3[12]));
292  s += abs(pix1[12] - avg4(pix2[12], pix2[13], pix3[12], pix3[13]));
293  s += abs(pix1[13] - avg4(pix2[13], pix2[14], pix3[13], pix3[14]));
294  s += abs(pix1[14] - avg4(pix2[14], pix2[15], pix3[14], pix3[15]));
295  s += abs(pix1[15] - avg4(pix2[15], pix2[16], pix3[15], pix3[16]));
296  pix1 += stride;
297  pix2 += stride;
298  pix3 += stride;
299  }
300  return s;
301 }
302 
303 static inline int pix_abs8_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
304  ptrdiff_t stride, int h)
305 {
306  int s = 0, i;
307 
308  for (i = 0; i < h; i++) {
309  s += abs(pix1[0] - pix2[0]);
310  s += abs(pix1[1] - pix2[1]);
311  s += abs(pix1[2] - pix2[2]);
312  s += abs(pix1[3] - pix2[3]);
313  s += abs(pix1[4] - pix2[4]);
314  s += abs(pix1[5] - pix2[5]);
315  s += abs(pix1[6] - pix2[6]);
316  s += abs(pix1[7] - pix2[7]);
317  pix1 += stride;
318  pix2 += stride;
319  }
320  return s;
321 }
322 
323 static inline int pix_median_abs8_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
324  ptrdiff_t stride, int h)
325 {
326  int s = 0, i, j;
327 
328 #define V(x) (pix1[x] - pix2[x])
329 
330  s += abs(V(0));
331  s += abs(V(1) - V(0));
332  s += abs(V(2) - V(1));
333  s += abs(V(3) - V(2));
334  s += abs(V(4) - V(3));
335  s += abs(V(5) - V(4));
336  s += abs(V(6) - V(5));
337  s += abs(V(7) - V(6));
338 
339  pix1 += stride;
340  pix2 += stride;
341 
342  for (i = 1; i < h; i++) {
343  s += abs(V(0) - V(-stride));
344  for (j = 1; j < 8; j++)
345  s += abs(V(j) - mid_pred(V(j-stride), V(j-1), V(j-stride) + V(j-1) - V(j-stride-1)));
346  pix1 += stride;
347  pix2 += stride;
348 
349  }
350 #undef V
351  return s;
352 }
353 
354 static int pix_abs8_x2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
355  ptrdiff_t stride, int h)
356 {
357  int s = 0, i;
358 
359  for (i = 0; i < h; i++) {
360  s += abs(pix1[0] - avg2(pix2[0], pix2[1]));
361  s += abs(pix1[1] - avg2(pix2[1], pix2[2]));
362  s += abs(pix1[2] - avg2(pix2[2], pix2[3]));
363  s += abs(pix1[3] - avg2(pix2[3], pix2[4]));
364  s += abs(pix1[4] - avg2(pix2[4], pix2[5]));
365  s += abs(pix1[5] - avg2(pix2[5], pix2[6]));
366  s += abs(pix1[6] - avg2(pix2[6], pix2[7]));
367  s += abs(pix1[7] - avg2(pix2[7], pix2[8]));
368  pix1 += stride;
369  pix2 += stride;
370  }
371  return s;
372 }
373 
374 static int pix_abs8_y2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
375  ptrdiff_t stride, int h)
376 {
377  int s = 0, i;
378  uint8_t *pix3 = pix2 + stride;
379 
380  for (i = 0; i < h; i++) {
381  s += abs(pix1[0] - avg2(pix2[0], pix3[0]));
382  s += abs(pix1[1] - avg2(pix2[1], pix3[1]));
383  s += abs(pix1[2] - avg2(pix2[2], pix3[2]));
384  s += abs(pix1[3] - avg2(pix2[3], pix3[3]));
385  s += abs(pix1[4] - avg2(pix2[4], pix3[4]));
386  s += abs(pix1[5] - avg2(pix2[5], pix3[5]));
387  s += abs(pix1[6] - avg2(pix2[6], pix3[6]));
388  s += abs(pix1[7] - avg2(pix2[7], pix3[7]));
389  pix1 += stride;
390  pix2 += stride;
391  pix3 += stride;
392  }
393  return s;
394 }
395 
396 static int pix_abs8_xy2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
397  ptrdiff_t stride, int h)
398 {
399  int s = 0, i;
400  uint8_t *pix3 = pix2 + stride;
401 
402  for (i = 0; i < h; i++) {
403  s += abs(pix1[0] - avg4(pix2[0], pix2[1], pix3[0], pix3[1]));
404  s += abs(pix1[1] - avg4(pix2[1], pix2[2], pix3[1], pix3[2]));
405  s += abs(pix1[2] - avg4(pix2[2], pix2[3], pix3[2], pix3[3]));
406  s += abs(pix1[3] - avg4(pix2[3], pix2[4], pix3[3], pix3[4]));
407  s += abs(pix1[4] - avg4(pix2[4], pix2[5], pix3[4], pix3[5]));
408  s += abs(pix1[5] - avg4(pix2[5], pix2[6], pix3[5], pix3[6]));
409  s += abs(pix1[6] - avg4(pix2[6], pix2[7], pix3[6], pix3[7]));
410  s += abs(pix1[7] - avg4(pix2[7], pix2[8], pix3[7], pix3[8]));
411  pix1 += stride;
412  pix2 += stride;
413  pix3 += stride;
414  }
415  return s;
416 }
417 
418 static int nsse16_c(MpegEncContext *c, uint8_t *s1, uint8_t *s2,
419  ptrdiff_t stride, int h)
420 {
421  int score1 = 0, score2 = 0, x, y;
422 
423  for (y = 0; y < h; y++) {
424  for (x = 0; x < 16; x++)
425  score1 += (s1[x] - s2[x]) * (s1[x] - s2[x]);
426  if (y + 1 < h) {
427  for (x = 0; x < 15; x++)
428  score2 += FFABS(s1[x] - s1[x + stride] -
429  s1[x + 1] + s1[x + stride + 1]) -
430  FFABS(s2[x] - s2[x + stride] -
431  s2[x + 1] + s2[x + stride + 1]);
432  }
433  s1 += stride;
434  s2 += stride;
435  }
436 
437  if (c)
438  return score1 + FFABS(score2) * c->avctx->nsse_weight;
439  else
440  return score1 + FFABS(score2) * 8;
441 }
442 
443 static int nsse8_c(MpegEncContext *c, uint8_t *s1, uint8_t *s2,
444  ptrdiff_t stride, int h)
445 {
446  int score1 = 0, score2 = 0, x, y;
447 
448  for (y = 0; y < h; y++) {
449  for (x = 0; x < 8; x++)
450  score1 += (s1[x] - s2[x]) * (s1[x] - s2[x]);
451  if (y + 1 < h) {
452  for (x = 0; x < 7; x++)
453  score2 += FFABS(s1[x] - s1[x + stride] -
454  s1[x + 1] + s1[x + stride + 1]) -
455  FFABS(s2[x] - s2[x + stride] -
456  s2[x + 1] + s2[x + stride + 1]);
457  }
458  s1 += stride;
459  s2 += stride;
460  }
461 
462  if (c)
463  return score1 + FFABS(score2) * c->avctx->nsse_weight;
464  else
465  return score1 + FFABS(score2) * 8;
466 }
467 
468 static int zero_cmp(MpegEncContext *s, uint8_t *a, uint8_t *b,
469  ptrdiff_t stride, int h)
470 {
471  return 0;
472 }
473 
474 void ff_set_cmp(MECmpContext *c, me_cmp_func *cmp, int type)
475 {
476  int i;
477 
478  memset(cmp, 0, sizeof(void *) * 6);
479 
480  for (i = 0; i < 6; i++) {
481  switch (type & 0xFF) {
482  case FF_CMP_SAD:
483  cmp[i] = c->sad[i];
484  break;
485  case FF_CMP_MEDIAN_SAD:
486  cmp[i] = c->median_sad[i];
487  break;
488  case FF_CMP_SATD:
489  cmp[i] = c->hadamard8_diff[i];
490  break;
491  case FF_CMP_SSE:
492  cmp[i] = c->sse[i];
493  break;
494  case FF_CMP_DCT:
495  cmp[i] = c->dct_sad[i];
496  break;
497  case FF_CMP_DCT264:
498  cmp[i] = c->dct264_sad[i];
499  break;
500  case FF_CMP_DCTMAX:
501  cmp[i] = c->dct_max[i];
502  break;
503  case FF_CMP_PSNR:
504  cmp[i] = c->quant_psnr[i];
505  break;
506  case FF_CMP_BIT:
507  cmp[i] = c->bit[i];
508  break;
509  case FF_CMP_RD:
510  cmp[i] = c->rd[i];
511  break;
512  case FF_CMP_VSAD:
513  cmp[i] = c->vsad[i];
514  break;
515  case FF_CMP_VSSE:
516  cmp[i] = c->vsse[i];
517  break;
518  case FF_CMP_ZERO:
519  cmp[i] = zero_cmp;
520  break;
521  case FF_CMP_NSSE:
522  cmp[i] = c->nsse[i];
523  break;
524 #if CONFIG_DWT
525  case FF_CMP_W53:
526  cmp[i]= c->w53[i];
527  break;
528  case FF_CMP_W97:
529  cmp[i]= c->w97[i];
530  break;
531 #endif
532  default:
533  av_log(NULL, AV_LOG_ERROR,
534  "internal error in cmp function selection\n");
535  }
536  }
537 }
538 
539 #define BUTTERFLY2(o1, o2, i1, i2) \
540  o1 = (i1) + (i2); \
541  o2 = (i1) - (i2);
542 
543 #define BUTTERFLY1(x, y) \
544  { \
545  int a, b; \
546  a = x; \
547  b = y; \
548  x = a + b; \
549  y = a - b; \
550  }
551 
552 #define BUTTERFLYA(x, y) (FFABS((x) + (y)) + FFABS((x) - (y)))
553 
554 static int hadamard8_diff8x8_c(MpegEncContext *s, uint8_t *dst,
555  uint8_t *src, ptrdiff_t stride, int h)
556 {
557  int i, temp[64], sum = 0;
558 
559  av_assert2(h == 8);
560 
561  for (i = 0; i < 8; i++) {
562  // FIXME: try pointer walks
563  BUTTERFLY2(temp[8 * i + 0], temp[8 * i + 1],
564  src[stride * i + 0] - dst[stride * i + 0],
565  src[stride * i + 1] - dst[stride * i + 1]);
566  BUTTERFLY2(temp[8 * i + 2], temp[8 * i + 3],
567  src[stride * i + 2] - dst[stride * i + 2],
568  src[stride * i + 3] - dst[stride * i + 3]);
569  BUTTERFLY2(temp[8 * i + 4], temp[8 * i + 5],
570  src[stride * i + 4] - dst[stride * i + 4],
571  src[stride * i + 5] - dst[stride * i + 5]);
572  BUTTERFLY2(temp[8 * i + 6], temp[8 * i + 7],
573  src[stride * i + 6] - dst[stride * i + 6],
574  src[stride * i + 7] - dst[stride * i + 7]);
575 
576  BUTTERFLY1(temp[8 * i + 0], temp[8 * i + 2]);
577  BUTTERFLY1(temp[8 * i + 1], temp[8 * i + 3]);
578  BUTTERFLY1(temp[8 * i + 4], temp[8 * i + 6]);
579  BUTTERFLY1(temp[8 * i + 5], temp[8 * i + 7]);
580 
581  BUTTERFLY1(temp[8 * i + 0], temp[8 * i + 4]);
582  BUTTERFLY1(temp[8 * i + 1], temp[8 * i + 5]);
583  BUTTERFLY1(temp[8 * i + 2], temp[8 * i + 6]);
584  BUTTERFLY1(temp[8 * i + 3], temp[8 * i + 7]);
585  }
586 
587  for (i = 0; i < 8; i++) {
588  BUTTERFLY1(temp[8 * 0 + i], temp[8 * 1 + i]);
589  BUTTERFLY1(temp[8 * 2 + i], temp[8 * 3 + i]);
590  BUTTERFLY1(temp[8 * 4 + i], temp[8 * 5 + i]);
591  BUTTERFLY1(temp[8 * 6 + i], temp[8 * 7 + i]);
592 
593  BUTTERFLY1(temp[8 * 0 + i], temp[8 * 2 + i]);
594  BUTTERFLY1(temp[8 * 1 + i], temp[8 * 3 + i]);
595  BUTTERFLY1(temp[8 * 4 + i], temp[8 * 6 + i]);
596  BUTTERFLY1(temp[8 * 5 + i], temp[8 * 7 + i]);
597 
598  sum += BUTTERFLYA(temp[8 * 0 + i], temp[8 * 4 + i]) +
599  BUTTERFLYA(temp[8 * 1 + i], temp[8 * 5 + i]) +
600  BUTTERFLYA(temp[8 * 2 + i], temp[8 * 6 + i]) +
601  BUTTERFLYA(temp[8 * 3 + i], temp[8 * 7 + i]);
602  }
603  return sum;
604 }
605 
606 static int hadamard8_intra8x8_c(MpegEncContext *s, uint8_t *src,
607  uint8_t *dummy, ptrdiff_t stride, int h)
608 {
609  int i, temp[64], sum = 0;
610 
611  av_assert2(h == 8);
612 
613  for (i = 0; i < 8; i++) {
614  // FIXME: try pointer walks
615  BUTTERFLY2(temp[8 * i + 0], temp[8 * i + 1],
616  src[stride * i + 0], src[stride * i + 1]);
617  BUTTERFLY2(temp[8 * i + 2], temp[8 * i + 3],
618  src[stride * i + 2], src[stride * i + 3]);
619  BUTTERFLY2(temp[8 * i + 4], temp[8 * i + 5],
620  src[stride * i + 4], src[stride * i + 5]);
621  BUTTERFLY2(temp[8 * i + 6], temp[8 * i + 7],
622  src[stride * i + 6], src[stride * i + 7]);
623 
624  BUTTERFLY1(temp[8 * i + 0], temp[8 * i + 2]);
625  BUTTERFLY1(temp[8 * i + 1], temp[8 * i + 3]);
626  BUTTERFLY1(temp[8 * i + 4], temp[8 * i + 6]);
627  BUTTERFLY1(temp[8 * i + 5], temp[8 * i + 7]);
628 
629  BUTTERFLY1(temp[8 * i + 0], temp[8 * i + 4]);
630  BUTTERFLY1(temp[8 * i + 1], temp[8 * i + 5]);
631  BUTTERFLY1(temp[8 * i + 2], temp[8 * i + 6]);
632  BUTTERFLY1(temp[8 * i + 3], temp[8 * i + 7]);
633  }
634 
635  for (i = 0; i < 8; i++) {
636  BUTTERFLY1(temp[8 * 0 + i], temp[8 * 1 + i]);
637  BUTTERFLY1(temp[8 * 2 + i], temp[8 * 3 + i]);
638  BUTTERFLY1(temp[8 * 4 + i], temp[8 * 5 + i]);
639  BUTTERFLY1(temp[8 * 6 + i], temp[8 * 7 + i]);
640 
641  BUTTERFLY1(temp[8 * 0 + i], temp[8 * 2 + i]);
642  BUTTERFLY1(temp[8 * 1 + i], temp[8 * 3 + i]);
643  BUTTERFLY1(temp[8 * 4 + i], temp[8 * 6 + i]);
644  BUTTERFLY1(temp[8 * 5 + i], temp[8 * 7 + i]);
645 
646  sum +=
647  BUTTERFLYA(temp[8 * 0 + i], temp[8 * 4 + i])
648  + BUTTERFLYA(temp[8 * 1 + i], temp[8 * 5 + i])
649  + BUTTERFLYA(temp[8 * 2 + i], temp[8 * 6 + i])
650  + BUTTERFLYA(temp[8 * 3 + i], temp[8 * 7 + i]);
651  }
652 
653  sum -= FFABS(temp[8 * 0] + temp[8 * 4]); // -mean
654 
655  return sum;
656 }
657 
658 static int dct_sad8x8_c(MpegEncContext *s, uint8_t *src1,
659  uint8_t *src2, ptrdiff_t stride, int h)
660 {
661  LOCAL_ALIGNED_16(int16_t, temp, [64]);
662 
663  av_assert2(h == 8);
664 
665  s->pdsp.diff_pixels_unaligned(temp, src1, src2, stride);
666  s->fdsp.fdct(temp);
667  return s->mecc.sum_abs_dctelem(temp);
668 }
669 
670 #if CONFIG_GPL
671 #define DCT8_1D \
672  { \
673  const int s07 = SRC(0) + SRC(7); \
674  const int s16 = SRC(1) + SRC(6); \
675  const int s25 = SRC(2) + SRC(5); \
676  const int s34 = SRC(3) + SRC(4); \
677  const int a0 = s07 + s34; \
678  const int a1 = s16 + s25; \
679  const int a2 = s07 - s34; \
680  const int a3 = s16 - s25; \
681  const int d07 = SRC(0) - SRC(7); \
682  const int d16 = SRC(1) - SRC(6); \
683  const int d25 = SRC(2) - SRC(5); \
684  const int d34 = SRC(3) - SRC(4); \
685  const int a4 = d16 + d25 + (d07 + (d07 >> 1)); \
686  const int a5 = d07 - d34 - (d25 + (d25 >> 1)); \
687  const int a6 = d07 + d34 - (d16 + (d16 >> 1)); \
688  const int a7 = d16 - d25 + (d34 + (d34 >> 1)); \
689  DST(0, a0 + a1); \
690  DST(1, a4 + (a7 >> 2)); \
691  DST(2, a2 + (a3 >> 1)); \
692  DST(3, a5 + (a6 >> 2)); \
693  DST(4, a0 - a1); \
694  DST(5, a6 - (a5 >> 2)); \
695  DST(6, (a2 >> 1) - a3); \
696  DST(7, (a4 >> 2) - a7); \
697  }
698 
699 static int dct264_sad8x8_c(MpegEncContext *s, uint8_t *src1,
700  uint8_t *src2, ptrdiff_t stride, int h)
701 {
702  int16_t dct[8][8];
703  int i, sum = 0;
704 
705  s->pdsp.diff_pixels_unaligned(dct[0], src1, src2, stride);
706 
707 #define SRC(x) dct[i][x]
708 #define DST(x, v) dct[i][x] = v
709  for (i = 0; i < 8; i++)
710  DCT8_1D
711 #undef SRC
712 #undef DST
713 
714 #define SRC(x) dct[x][i]
715 #define DST(x, v) sum += FFABS(v)
716  for (i = 0; i < 8; i++)
717  DCT8_1D
718 #undef SRC
719 #undef DST
720  return sum;
721 }
722 #endif
723 
724 static int dct_max8x8_c(MpegEncContext *s, uint8_t *src1,
725  uint8_t *src2, ptrdiff_t stride, int h)
726 {
727  LOCAL_ALIGNED_16(int16_t, temp, [64]);
728  int sum = 0, i;
729 
730  av_assert2(h == 8);
731 
732  s->pdsp.diff_pixels_unaligned(temp, src1, src2, stride);
733  s->fdsp.fdct(temp);
734 
735  for (i = 0; i < 64; i++)
736  sum = FFMAX(sum, FFABS(temp[i]));
737 
738  return sum;
739 }
740 
741 static int quant_psnr8x8_c(MpegEncContext *s, uint8_t *src1,
742  uint8_t *src2, ptrdiff_t stride, int h)
743 {
744  LOCAL_ALIGNED_16(int16_t, temp, [64 * 2]);
745  int16_t *const bak = temp + 64;
746  int sum = 0, i;
747 
748  av_assert2(h == 8);
749  s->mb_intra = 0;
750 
751  s->pdsp.diff_pixels_unaligned(temp, src1, src2, stride);
752 
753  memcpy(bak, temp, 64 * sizeof(int16_t));
754 
755  s->block_last_index[0 /* FIXME */] =
756  s->fast_dct_quantize(s, temp, 0 /* FIXME */, s->qscale, &i);
757  s->dct_unquantize_inter(s, temp, 0, s->qscale);
758  ff_simple_idct_int16_8bit(temp); // FIXME
759 
760  for (i = 0; i < 64; i++)
761  sum += (temp[i] - bak[i]) * (temp[i] - bak[i]);
762 
763  return sum;
764 }
765 
766 static int rd8x8_c(MpegEncContext *s, uint8_t *src1, uint8_t *src2,
767  ptrdiff_t stride, int h)
768 {
769  const uint8_t *scantable = s->intra_scantable.permutated;
770  LOCAL_ALIGNED_16(int16_t, temp, [64]);
771  LOCAL_ALIGNED_16(uint8_t, lsrc1, [64]);
772  LOCAL_ALIGNED_16(uint8_t, lsrc2, [64]);
773  int i, last, run, bits, level, distortion, start_i;
774  const int esc_length = s->ac_esc_length;
775  uint8_t *length, *last_length;
776 
777  av_assert2(h == 8);
778 
779  copy_block8(lsrc1, src1, 8, stride, 8);
780  copy_block8(lsrc2, src2, 8, stride, 8);
781 
782  s->pdsp.diff_pixels(temp, lsrc1, lsrc2, 8);
783 
784  s->block_last_index[0 /* FIXME */] =
785  last =
786  s->fast_dct_quantize(s, temp, 0 /* FIXME */, s->qscale, &i);
787 
788  bits = 0;
789 
790  if (s->mb_intra) {
791  start_i = 1;
792  length = s->intra_ac_vlc_length;
793  last_length = s->intra_ac_vlc_last_length;
794  bits += s->luma_dc_vlc_length[temp[0] + 256]; // FIXME: chroma
795  } else {
796  start_i = 0;
797  length = s->inter_ac_vlc_length;
798  last_length = s->inter_ac_vlc_last_length;
799  }
800 
801  if (last >= start_i) {
802  run = 0;
803  for (i = start_i; i < last; i++) {
804  int j = scantable[i];
805  level = temp[j];
806 
807  if (level) {
808  level += 64;
809  if ((level & (~127)) == 0)
810  bits += length[UNI_AC_ENC_INDEX(run, level)];
811  else
812  bits += esc_length;
813  run = 0;
814  } else
815  run++;
816  }
817  i = scantable[last];
818 
819  level = temp[i] + 64;
820 
821  av_assert2(level - 64);
822 
823  if ((level & (~127)) == 0) {
824  bits += last_length[UNI_AC_ENC_INDEX(run, level)];
825  } else
826  bits += esc_length;
827  }
828 
829  if (last >= 0) {
830  if (s->mb_intra)
831  s->dct_unquantize_intra(s, temp, 0, s->qscale);
832  else
833  s->dct_unquantize_inter(s, temp, 0, s->qscale);
834  }
835 
836  s->idsp.idct_add(lsrc2, 8, temp);
837 
838  distortion = s->mecc.sse[1](NULL, lsrc2, lsrc1, 8, 8);
839 
840  return distortion + ((bits * s->qscale * s->qscale * 109 + 64) >> 7);
841 }
842 
843 static int bit8x8_c(MpegEncContext *s, uint8_t *src1, uint8_t *src2,
844  ptrdiff_t stride, int h)
845 {
846  const uint8_t *scantable = s->intra_scantable.permutated;
847  LOCAL_ALIGNED_16(int16_t, temp, [64]);
848  int i, last, run, bits, level, start_i;
849  const int esc_length = s->ac_esc_length;
850  uint8_t *length, *last_length;
851 
852  av_assert2(h == 8);
853 
854  s->pdsp.diff_pixels_unaligned(temp, src1, src2, stride);
855 
856  s->block_last_index[0 /* FIXME */] =
857  last =
858  s->fast_dct_quantize(s, temp, 0 /* FIXME */, s->qscale, &i);
859 
860  bits = 0;
861 
862  if (s->mb_intra) {
863  start_i = 1;
864  length = s->intra_ac_vlc_length;
865  last_length = s->intra_ac_vlc_last_length;
866  bits += s->luma_dc_vlc_length[temp[0] + 256]; // FIXME: chroma
867  } else {
868  start_i = 0;
869  length = s->inter_ac_vlc_length;
870  last_length = s->inter_ac_vlc_last_length;
871  }
872 
873  if (last >= start_i) {
874  run = 0;
875  for (i = start_i; i < last; i++) {
876  int j = scantable[i];
877  level = temp[j];
878 
879  if (level) {
880  level += 64;
881  if ((level & (~127)) == 0)
882  bits += length[UNI_AC_ENC_INDEX(run, level)];
883  else
884  bits += esc_length;
885  run = 0;
886  } else
887  run++;
888  }
889  i = scantable[last];
890 
891  level = temp[i] + 64;
892 
893  av_assert2(level - 64);
894 
895  if ((level & (~127)) == 0)
896  bits += last_length[UNI_AC_ENC_INDEX(run, level)];
897  else
898  bits += esc_length;
899  }
900 
901  return bits;
902 }
903 
904 #define VSAD_INTRA(size) \
905 static int vsad_intra ## size ## _c(MpegEncContext *c, \
906  uint8_t *s, uint8_t *dummy, \
907  ptrdiff_t stride, int h) \
908 { \
909  int score = 0, x, y; \
910  \
911  for (y = 1; y < h; y++) { \
912  for (x = 0; x < size; x += 4) { \
913  score += FFABS(s[x] - s[x + stride]) + \
914  FFABS(s[x + 1] - s[x + stride + 1]) + \
915  FFABS(s[x + 2] - s[x + 2 + stride]) + \
916  FFABS(s[x + 3] - s[x + 3 + stride]); \
917  } \
918  s += stride; \
919  } \
920  \
921  return score; \
922 }
923 VSAD_INTRA(8)
924 VSAD_INTRA(16)
925 
926 #define VSAD(size) \
927 static int vsad ## size ## _c(MpegEncContext *c, \
928  uint8_t *s1, uint8_t *s2, \
929  ptrdiff_t stride, int h) \
930 { \
931  int score = 0, x, y; \
932  \
933  for (y = 1; y < h; y++) { \
934  for (x = 0; x < size; x++) \
935  score += FFABS(s1[x] - s2[x] - s1[x + stride] + s2[x + stride]); \
936  s1 += stride; \
937  s2 += stride; \
938  } \
939  \
940  return score; \
941 }
942 VSAD(8)
943 VSAD(16)
944 
945 #define SQ(a) ((a) * (a))
946 #define VSSE_INTRA(size) \
947 static int vsse_intra ## size ## _c(MpegEncContext *c, \
948  uint8_t *s, uint8_t *dummy, \
949  ptrdiff_t stride, int h) \
950 { \
951  int score = 0, x, y; \
952  \
953  for (y = 1; y < h; y++) { \
954  for (x = 0; x < size; x += 4) { \
955  score += SQ(s[x] - s[x + stride]) + \
956  SQ(s[x + 1] - s[x + stride + 1]) + \
957  SQ(s[x + 2] - s[x + stride + 2]) + \
958  SQ(s[x + 3] - s[x + stride + 3]); \
959  } \
960  s += stride; \
961  } \
962  \
963  return score; \
964 }
965 VSSE_INTRA(8)
966 VSSE_INTRA(16)
967 
968 #define VSSE(size) \
969 static int vsse ## size ## _c(MpegEncContext *c, uint8_t *s1, uint8_t *s2, \
970  ptrdiff_t stride, int h) \
971 { \
972  int score = 0, x, y; \
973  \
974  for (y = 1; y < h; y++) { \
975  for (x = 0; x < size; x++) \
976  score += SQ(s1[x] - s2[x] - s1[x + stride] + s2[x + stride]); \
977  s1 += stride; \
978  s2 += stride; \
979  } \
980  \
981  return score; \
982 }
983 VSSE(8)
984 VSSE(16)
985 
986 #define WRAPPER8_16_SQ(name8, name16) \
987 static int name16(MpegEncContext *s, uint8_t *dst, uint8_t *src, \
988  ptrdiff_t stride, int h) \
989 { \
990  int score = 0; \
991  \
992  score += name8(s, dst, src, stride, 8); \
993  score += name8(s, dst + 8, src + 8, stride, 8); \
994  if (h == 16) { \
995  dst += 8 * stride; \
996  src += 8 * stride; \
997  score += name8(s, dst, src, stride, 8); \
998  score += name8(s, dst + 8, src + 8, stride, 8); \
999  } \
1000  return score; \
1001 }
1002 
1003 WRAPPER8_16_SQ(hadamard8_diff8x8_c, hadamard8_diff16_c)
1004 WRAPPER8_16_SQ(hadamard8_intra8x8_c, hadamard8_intra16_c)
1005 WRAPPER8_16_SQ(dct_sad8x8_c, dct_sad16_c)
1006 #if CONFIG_GPL
1007 WRAPPER8_16_SQ(dct264_sad8x8_c, dct264_sad16_c)
1008 #endif
1009 WRAPPER8_16_SQ(dct_max8x8_c, dct_max16_c)
1010 WRAPPER8_16_SQ(quant_psnr8x8_c, quant_psnr16_c)
1011 WRAPPER8_16_SQ(rd8x8_c, rd16_c)
1012 WRAPPER8_16_SQ(bit8x8_c, bit16_c)
1013 
1014 int ff_check_alignment(void)
1015 {
1016  static int did_fail = 0;
1017  LOCAL_ALIGNED_16(int, aligned, [4]);
1018 
1019  if ((intptr_t)aligned & 15) {
1020  if (!did_fail) {
1021 #if HAVE_MMX || HAVE_ALTIVEC
1022  av_log(NULL, AV_LOG_ERROR,
1023  "Compiler did not align stack variables. Libavcodec has been miscompiled\n"
1024  "and may be very slow or crash. This is not a bug in libavcodec,\n"
1025  "but in the compiler. You may try recompiling using gcc >= 4.2.\n"
1026  "Do not report crashes to FFmpeg developers.\n");
1027 #endif
1028  did_fail=1;
1029  }
1030  return -1;
1031  }
1032  return 0;
1033 }
1034 
1035 av_cold void ff_me_cmp_init(MECmpContext *c, AVCodecContext *avctx)
1036 {
1037  ff_check_alignment();
1038 
1039  c->sum_abs_dctelem = sum_abs_dctelem_c;
1040 
1041  /* TODO [0] 16 [1] 8 */
1042  c->pix_abs[0][0] = pix_abs16_c;
1043  c->pix_abs[0][1] = pix_abs16_x2_c;
1044  c->pix_abs[0][2] = pix_abs16_y2_c;
1045  c->pix_abs[0][3] = pix_abs16_xy2_c;
1046  c->pix_abs[1][0] = pix_abs8_c;
1047  c->pix_abs[1][1] = pix_abs8_x2_c;
1048  c->pix_abs[1][2] = pix_abs8_y2_c;
1049  c->pix_abs[1][3] = pix_abs8_xy2_c;
1050 
1051 #define SET_CMP_FUNC(name) \
1052  c->name[0] = name ## 16_c; \
1053  c->name[1] = name ## 8x8_c;
1054 
1055  SET_CMP_FUNC(hadamard8_diff)
1056  c->hadamard8_diff[4] = hadamard8_intra16_c;
1057  c->hadamard8_diff[5] = hadamard8_intra8x8_c;
1058  SET_CMP_FUNC(dct_sad)
1059  SET_CMP_FUNC(dct_max)
1060 #if CONFIG_GPL
1061  SET_CMP_FUNC(dct264_sad)
1062 #endif
1063  c->sad[0] = pix_abs16_c;
1064  c->sad[1] = pix_abs8_c;
1065  c->sse[0] = sse16_c;
1066  c->sse[1] = sse8_c;
1067  c->sse[2] = sse4_c;
1068  SET_CMP_FUNC(quant_psnr)
1069  SET_CMP_FUNC(rd)
1070  SET_CMP_FUNC(bit)
1071  c->vsad[0] = vsad16_c;
1072  c->vsad[1] = vsad8_c;
1073  c->vsad[4] = vsad_intra16_c;
1074  c->vsad[5] = vsad_intra8_c;
1075  c->vsse[0] = vsse16_c;
1076  c->vsse[1] = vsse8_c;
1077  c->vsse[4] = vsse_intra16_c;
1078  c->vsse[5] = vsse_intra8_c;
1079  c->nsse[0] = nsse16_c;
1080  c->nsse[1] = nsse8_c;
1081 #if CONFIG_SNOW_DECODER || CONFIG_SNOW_ENCODER
1082  ff_dsputil_init_dwt(c);
1083 #endif
1084 
1085  if (ARCH_ALPHA)
1086  ff_me_cmp_init_alpha(c, avctx);
1087  if (ARCH_ARM)
1088  ff_me_cmp_init_arm(c, avctx);
1089  if (ARCH_PPC)
1090  ff_me_cmp_init_ppc(c, avctx);
1091  if (ARCH_X86)
1092  ff_me_cmp_init_x86(c, avctx);
1093  if (ARCH_MIPS)
1094  ff_me_cmp_init_mips(c, avctx);
1095 
1096  c->median_sad[0] = pix_median_abs16_c;
1097  c->median_sad[1] = pix_median_abs8_c;
1098 }
avg4
#define avg4(a, b, c, d)
Definition: me_cmp.c:146
ff_me_cmp_init
av_cold void ff_me_cmp_init(MECmpContext *c, AVCodecContext *avctx)
Definition: me_cmp.c:1035
ff_me_cmp_init_ppc
av_cold void ff_me_cmp_init_ppc(MECmpContext *c, AVCodecContext *avctx)
Definition: me_cmp.c:726
MpegEncContext::idsp
IDCTDSPContext idsp
Definition: mpegvideo.h:230
NULL
#define NULL
Definition: coverity.c:32
dct_max8x8_c
static int dct_max8x8_c(MpegEncContext *s, uint8_t *src1, uint8_t *src2, ptrdiff_t stride, int h)
Definition: me_cmp.c:724
MpegEncContext::dct_unquantize_inter
void(* dct_unquantize_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:534
hadamard8_intra8x8_c
static int hadamard8_intra8x8_c(MpegEncContext *s, uint8_t *src, uint8_t *dummy, ptrdiff_t stride, int h)
Definition: me_cmp.c:606
h
h
Definition: vp9dsp_template.c:2038
FF_CMP_DCTMAX
#define FF_CMP_DCTMAX
Definition: avcodec.h:1951
BUTTERFLY1
#define BUTTERFLY1(x, y)
Definition: me_cmp.c:543
temp
else temp
Definition: vf_mcdeint.c:256
zero_cmp
static int zero_cmp(MpegEncContext *s, uint8_t *a, uint8_t *b, ptrdiff_t stride, int h)
Definition: me_cmp.c:468
MECmpContext::w53
me_cmp_func w53[6]
Definition: me_cmp.h:66
MECmpContext::dct_max
me_cmp_func dct_max[6]
Definition: me_cmp.h:68
b
const char * b
Definition: vf_curves.c:116
ff_simple_idct_int16_8bit
void ff_simple_idct_int16_8bit(int16_t *block)
pix_median_abs16_c
static int pix_median_abs16_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, ptrdiff_t stride, int h)
Definition: me_cmp.c:176
nsse8_c
static int nsse8_c(MpegEncContext *c, uint8_t *s1, uint8_t *s2, ptrdiff_t stride, int h)
Definition: me_cmp.c:443
FF_CMP_W97
#define FF_CMP_W97
Definition: avcodec.h:1950
mpegvideo.h
mpegvideo header.
ScanTable::permutated
uint8_t permutated[64]
Definition: idctdsp.h:33
run
uint8_t run
Definition: svq3.c:206
MpegEncContext::intra_ac_vlc_length
uint8_t * intra_ac_vlc_length
Definition: mpegvideo.h:311
UNI_AC_ENC_INDEX
#define UNI_AC_ENC_INDEX(run, level)
Definition: mpegvideo.h:318
src
#define src
Definition: vp8dsp.c:254
copy_block8
static void copy_block8(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride, int h)
Definition: copy_block.h:47
MpegEncContext::qscale
int qscale
QP.
Definition: mpegvideo.h:204
MECmpContext::dct_sad
me_cmp_func dct_sad[6]
Definition: me_cmp.h:59
MpegEncContext::dct_unquantize_intra
void(* dct_unquantize_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition: mpegvideo.h:532
attributes.h
Macro definitions for various function/variable attributes.
MECmpContext::hadamard8_diff
me_cmp_func hadamard8_diff[6]
Definition: me_cmp.h:58
dct_sad8x8_c
static int dct_sad8x8_c(MpegEncContext *s, uint8_t *src1, uint8_t *src2, ptrdiff_t stride, int h)
Definition: me_cmp.c:658
block
static int16_t block[64]
Definition: dct.c:115
V
#define V(x)
pix_abs16_xy2_c
static int pix_abs16_xy2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, ptrdiff_t stride, int h)
Definition: me_cmp.c:273
uint8_t
uint8_t
Definition: audio_convert.c:194
av_cold
#define av_cold
Definition: attributes.h:82
av_assert2
#define av_assert2(cond)
assert() equivalent, that does lie in speed critical code.
Definition: avassert.h:64
SET_CMP_FUNC
#define SET_CMP_FUNC(name)
rd8x8_c
static int rd8x8_c(MpegEncContext *s, uint8_t *src1, uint8_t *src2, ptrdiff_t stride, int h)
Definition: me_cmp.c:766
ff_square_tab
const uint32_t ff_square_tab[512]
Definition: me_cmp.c:33
FF_CMP_VSSE
#define FF_CMP_VSSE
Definition: avcodec.h:1947
MECmpContext::dct264_sad
me_cmp_func dct264_sad[6]
Definition: me_cmp.h:69
PixblockDSPContext::diff_pixels
void(* diff_pixels)(int16_t *av_restrict block, const uint8_t *s1, const uint8_t *s2, ptrdiff_t stride)
Definition: pixblockdsp.h:32
VSSE
#define VSSE(size)
Definition: me_cmp.c:968
MECmpContext::nsse
me_cmp_func nsse[6]
Definition: me_cmp.h:65
BUTTERFLY2
#define BUTTERFLY2(o1, o2, i1, i2)
Definition: me_cmp.c:539
pix_abs16_c
static int pix_abs16_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, ptrdiff_t stride, int h)
Definition: me_cmp.c:148
avg2
#define avg2(a, b)
Definition: me_cmp.c:145
FF_CMP_SSE
#define FF_CMP_SSE
Definition: avcodec.h:1939
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:28
ff_me_cmp_init_mips
void ff_me_cmp_init_mips(MECmpContext *c, AVCodecContext *avctx)
Definition: me_cmp_init_mips.c:51
aligned
static int aligned(int val)
Definition: dashdec.c:176
FF_CMP_MEDIAN_SAD
#define FF_CMP_MEDIAN_SAD
Definition: avcodec.h:1953
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
MpegEncContext::inter_ac_vlc_last_length
uint8_t * inter_ac_vlc_last_length
Definition: mpegvideo.h:316
s2
#define s2
Definition: regdef.h:39
sse4_c
static int sse4_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, ptrdiff_t stride, int h)
Definition: me_cmp.c:68
MpegEncContext::pdsp
PixblockDSPContext pdsp
Definition: mpegvideo.h:234
length
GLsizei GLsizei * length
Definition: opengl_enc.c:115
MECmpContext::pix_abs
me_cmp_func pix_abs[2][4]
Definition: me_cmp.h:78
FFMAX
#define FFMAX(a, b)
Definition: common.h:94
MECmpContext::bit
me_cmp_func bit[6]
Definition: me_cmp.h:61
internal.h
common internal API header
MpegEncContext::intra_ac_vlc_last_length
uint8_t * intra_ac_vlc_last_length
Definition: mpegvideo.h:312
MECmpContext::vsse
me_cmp_func vsse[6]
Definition: me_cmp.h:64
FF_CMP_BIT
#define FF_CMP_BIT
Definition: avcodec.h:1943
ff_me_cmp_init_alpha
av_cold void ff_me_cmp_init_alpha(MECmpContext *c, AVCodecContext *avctx)
Definition: me_cmp_alpha.c:305
pix_abs8_xy2_c
static int pix_abs8_xy2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, ptrdiff_t stride, int h)
Definition: me_cmp.c:396
MECmpContext::vsad
me_cmp_func vsad[6]
Definition: me_cmp.h:63
FFABS
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
Definition: common.h:72
s
#define s(width, name)
Definition: cbs_vp9.c:257
WRAPPER8_16_SQ
#define WRAPPER8_16_SQ(name8, name16)
Definition: me_cmp.c:986
cmp
static av_always_inline int cmp(MpegEncContext *s, const int x, const int y, const int subx, const int suby, const int size, const int h, int ref_index, int src_index, me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags)
compares a block (either a full macroblock or a partition thereof) against a proposed motion-compensa...
Definition: motion_est.c:260
MpegEncContext::block_last_index
int block_last_index[12]
last non zero coefficient in block
Definition: mpegvideo.h:86
dummy
int dummy
Definition: motion.c:64
me_cmp_func
int(* me_cmp_func)(struct MpegEncContext *c, uint8_t *blk1, uint8_t *blk2, ptrdiff_t stride, int h)
Definition: me_cmp.h:48
sse16_c
static int sse16_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, ptrdiff_t stride, int h)
Definition: me_cmp.c:106
pix_abs8_c
static int pix_abs8_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, ptrdiff_t stride, int h)
Definition: me_cmp.c:303
MpegEncContext::ac_esc_length
int ac_esc_length
num of bits needed to encode the longest esc
Definition: mpegvideo.h:310
FF_CMP_SAD
#define FF_CMP_SAD
Definition: avcodec.h:1938
sse8_c
static int sse8_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, ptrdiff_t stride, int h)
Definition: me_cmp.c:85
me_cmp.h
src1
#define src1
Definition: h264pred.c:139
MpegEncContext::luma_dc_vlc_length
uint8_t * luma_dc_vlc_length
Definition: mpegvideo.h:317
MECmpContext::rd
me_cmp_func rd[6]
Definition: me_cmp.h:62
avcodec.h
Libavcodec external API header.
copy_block.h
FF_CMP_RD
#define FF_CMP_RD
Definition: avcodec.h:1944
ff_set_cmp
void ff_set_cmp(MECmpContext *c, me_cmp_func *cmp, int type)
Definition: me_cmp.c:474
FDCTDSPContext::fdct
void(* fdct)(int16_t *block)
Definition: fdctdsp.h:27
AVCodecContext
main external API structure.
Definition: avcodec.h:1533
MpegEncContext::intra_scantable
ScanTable intra_scantable
Definition: mpegvideo.h:91
FF_CMP_NSSE
#define FF_CMP_NSSE
Definition: avcodec.h:1948
FF_CMP_SATD
#define FF_CMP_SATD
Definition: avcodec.h:1940
MpegEncContext::fdsp
FDCTDSPContext fdsp
Definition: mpegvideo.h:227
VSSE_INTRA
#define VSSE_INTRA(size)
Definition: me_cmp.c:946
FF_CMP_DCT
#define FF_CMP_DCT
Definition: avcodec.h:1941
type
GLint GLenum type
Definition: opengl_enc.c:105
MpegEncContext::inter_ac_vlc_length
uint8_t * inter_ac_vlc_length
Definition: mpegvideo.h:315
IDCTDSPContext::idct_add
void(* idct_add)(uint8_t *dest, ptrdiff_t line_size, int16_t *block)
block -> idct -> add dest -> clip to unsigned 8 bit -> dest.
Definition: idctdsp.h:79
nsse16_c
static int nsse16_c(MpegEncContext *c, uint8_t *s1, uint8_t *s2, ptrdiff_t stride, int h)
Definition: me_cmp.c:418
ff_me_cmp_init_arm
av_cold void ff_me_cmp_init_arm(MECmpContext *c, AVCodecContext *avctx)
Definition: me_cmp_init_arm.c:41
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#define mid_pred
Definition: mathops.h:97
FF_CMP_PSNR
#define FF_CMP_PSNR
Definition: avcodec.h:1942
DCT8_1D
#define DCT8_1D(src, srcstride, dst, dststride)
Definition: h264dsp.c:92
s1
#define s1
Definition: regdef.h:38
FF_CMP_W53
#define FF_CMP_W53
Definition: avcodec.h:1949
FF_CMP_DCT264
#define FF_CMP_DCT264
Definition: avcodec.h:1952
MECmpContext::median_sad
me_cmp_func median_sad[6]
Definition: me_cmp.h:79
quant_psnr8x8_c
static int quant_psnr8x8_c(MpegEncContext *s, uint8_t *src1, uint8_t *src2, ptrdiff_t stride, int h)
Definition: me_cmp.c:741
level
uint8_t level
Definition: svq3.c:207
MECmpContext::sad
me_cmp_func sad[6]
Definition: me_cmp.h:56
MECmpContext::sse
me_cmp_func sse[6]
Definition: me_cmp.h:57
FF_CMP_ZERO
#define FF_CMP_ZERO
Definition: avcodec.h:1945
MpegEncContext
MpegEncContext.
Definition: mpegvideo.h:81
MpegEncContext::avctx
struct AVCodecContext * avctx
Definition: mpegvideo.h:98
stride
GLint GLenum GLboolean GLsizei stride
Definition: opengl_enc.c:105
pix_abs8_y2_c
static int pix_abs8_y2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, ptrdiff_t stride, int h)
Definition: me_cmp.c:374
MpegEncContext::mecc
MECmpContext mecc
Definition: mpegvideo.h:231
DST
#define DST(x, y)
Definition: vp9dsp_template.c:781
VSAD
#define VSAD(size)
Definition: me_cmp.c:926
AVCodecContext::nsse_weight
int nsse_weight
noise vs.
Definition: avcodec.h:2852
c
static double c[64]
Definition: vsrc_mptestsrc.c:87
pix_abs16_x2_c
static int pix_abs16_x2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, ptrdiff_t stride, int h)
Definition: me_cmp.c:215
BUTTERFLYA
#define BUTTERFLYA(x, y)
Definition: me_cmp.c:552
pix_abs8_x2_c
static int pix_abs8_x2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, ptrdiff_t stride, int h)
Definition: me_cmp.c:354
FF_CMP_VSAD
#define FF_CMP_VSAD
Definition: avcodec.h:1946
pix_abs16_y2_c
static int pix_abs16_y2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, ptrdiff_t stride, int h)
Definition: me_cmp.c:243
sum_abs_dctelem_c
static int sum_abs_dctelem_c(int16_t *block)
Definition: me_cmp.c:136
simple_idct.h
simple idct header.
MECmpContext::sum_abs_dctelem
int(* sum_abs_dctelem)(int16_t *block)
Definition: me_cmp.h:54
MECmpContext::quant_psnr
me_cmp_func quant_psnr[6]
Definition: me_cmp.h:60
MECmpContext::w97
me_cmp_func w97[6]
Definition: me_cmp.h:67
PixblockDSPContext::diff_pixels_unaligned
void(* diff_pixels_unaligned)(int16_t *av_restrict block, const uint8_t *s1, const uint8_t *s2, ptrdiff_t stride)
Definition: pixblockdsp.h:36
MpegEncContext::fast_dct_quantize
int(* fast_dct_quantize)(struct MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow)
Definition: mpegvideo.h:537
LOCAL_ALIGNED_16
#define LOCAL_ALIGNED_16(t, v,...)
Definition: internal.h:131
ff_dsputil_init_dwt
void ff_dsputil_init_dwt(MECmpContext *c)
Definition: snow_dwt.c:842
bit8x8_c
static int bit8x8_c(MpegEncContext *s, uint8_t *src1, uint8_t *src2, ptrdiff_t stride, int h)
Definition: me_cmp.c:843
hadamard8_diff8x8_c
static int hadamard8_diff8x8_c(MpegEncContext *s, uint8_t *dst, uint8_t *src, ptrdiff_t stride, int h)
Definition: me_cmp.c:554
stride
#define stride
ff_me_cmp_init_x86
void ff_me_cmp_init_x86(MECmpContext *c, AVCodecContext *avctx)
VSAD_INTRA
#define VSAD_INTRA(size)
Definition: me_cmp.c:904
ff_check_alignment
int ff_check_alignment(void)
Definition: me_cmp.c:1014
pix_median_abs8_c
static int pix_median_abs8_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2, ptrdiff_t stride, int h)
Definition: me_cmp.c:323
a
a
Definition: h264pred_template.c:468
SRC
#define SRC(x, y)
Definition: h264pred_template.c:847
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