3 * Copyright (c) 2000, 2001 Fabrice Bellard
4 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
6 * This file is part of FFmpeg.
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.
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.
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
23 #include "libavutil/attributes.h"
24 #include "libavutil/internal.h"
26 #include "copy_block.h"
27 #include "simple_idct.h"
29 #include "mpegvideo.h"
32 uint32_t ff_square_tab[512] = { 0, };
34 static int sse4_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
35 ptrdiff_t stride, int h)
38 uint32_t *sq = ff_square_tab + 256;
40 for (i = 0; i < h; i++) {
41 s += sq[pix1[0] - pix2[0]];
42 s += sq[pix1[1] - pix2[1]];
43 s += sq[pix1[2] - pix2[2]];
44 s += sq[pix1[3] - pix2[3]];
51 static int sse8_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
52 ptrdiff_t stride, int h)
55 uint32_t *sq = ff_square_tab + 256;
57 for (i = 0; i < h; i++) {
58 s += sq[pix1[0] - pix2[0]];
59 s += sq[pix1[1] - pix2[1]];
60 s += sq[pix1[2] - pix2[2]];
61 s += sq[pix1[3] - pix2[3]];
62 s += sq[pix1[4] - pix2[4]];
63 s += sq[pix1[5] - pix2[5]];
64 s += sq[pix1[6] - pix2[6]];
65 s += sq[pix1[7] - pix2[7]];
72 static int sse16_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
73 ptrdiff_t stride, int h)
76 uint32_t *sq = ff_square_tab + 256;
78 for (i = 0; i < h; i++) {
79 s += sq[pix1[0] - pix2[0]];
80 s += sq[pix1[1] - pix2[1]];
81 s += sq[pix1[2] - pix2[2]];
82 s += sq[pix1[3] - pix2[3]];
83 s += sq[pix1[4] - pix2[4]];
84 s += sq[pix1[5] - pix2[5]];
85 s += sq[pix1[6] - pix2[6]];
86 s += sq[pix1[7] - pix2[7]];
87 s += sq[pix1[8] - pix2[8]];
88 s += sq[pix1[9] - pix2[9]];
89 s += sq[pix1[10] - pix2[10]];
90 s += sq[pix1[11] - pix2[11]];
91 s += sq[pix1[12] - pix2[12]];
92 s += sq[pix1[13] - pix2[13]];
93 s += sq[pix1[14] - pix2[14]];
94 s += sq[pix1[15] - pix2[15]];
102 static int sum_abs_dctelem_c(int16_t *block)
106 for (i = 0; i < 64; i++)
107 sum += FFABS(block[i]);
111 #define avg2(a, b) (((a) + (b) + 1) >> 1)
112 #define avg4(a, b, c, d) (((a) + (b) + (c) + (d) + 2) >> 2)
114 static inline int pix_abs16_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
115 ptrdiff_t stride, int h)
119 for (i = 0; i < h; i++) {
120 s += abs(pix1[0] - pix2[0]);
121 s += abs(pix1[1] - pix2[1]);
122 s += abs(pix1[2] - pix2[2]);
123 s += abs(pix1[3] - pix2[3]);
124 s += abs(pix1[4] - pix2[4]);
125 s += abs(pix1[5] - pix2[5]);
126 s += abs(pix1[6] - pix2[6]);
127 s += abs(pix1[7] - pix2[7]);
128 s += abs(pix1[8] - pix2[8]);
129 s += abs(pix1[9] - pix2[9]);
130 s += abs(pix1[10] - pix2[10]);
131 s += abs(pix1[11] - pix2[11]);
132 s += abs(pix1[12] - pix2[12]);
133 s += abs(pix1[13] - pix2[13]);
134 s += abs(pix1[14] - pix2[14]);
135 s += abs(pix1[15] - pix2[15]);
142 static int pix_abs16_x2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
143 ptrdiff_t stride, int h)
147 for (i = 0; i < h; i++) {
148 s += abs(pix1[0] - avg2(pix2[0], pix2[1]));
149 s += abs(pix1[1] - avg2(pix2[1], pix2[2]));
150 s += abs(pix1[2] - avg2(pix2[2], pix2[3]));
151 s += abs(pix1[3] - avg2(pix2[3], pix2[4]));
152 s += abs(pix1[4] - avg2(pix2[4], pix2[5]));
153 s += abs(pix1[5] - avg2(pix2[5], pix2[6]));
154 s += abs(pix1[6] - avg2(pix2[6], pix2[7]));
155 s += abs(pix1[7] - avg2(pix2[7], pix2[8]));
156 s += abs(pix1[8] - avg2(pix2[8], pix2[9]));
157 s += abs(pix1[9] - avg2(pix2[9], pix2[10]));
158 s += abs(pix1[10] - avg2(pix2[10], pix2[11]));
159 s += abs(pix1[11] - avg2(pix2[11], pix2[12]));
160 s += abs(pix1[12] - avg2(pix2[12], pix2[13]));
161 s += abs(pix1[13] - avg2(pix2[13], pix2[14]));
162 s += abs(pix1[14] - avg2(pix2[14], pix2[15]));
163 s += abs(pix1[15] - avg2(pix2[15], pix2[16]));
170 static int pix_abs16_y2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
171 ptrdiff_t stride, int h)
174 uint8_t *pix3 = pix2 + stride;
176 for (i = 0; i < h; i++) {
177 s += abs(pix1[0] - avg2(pix2[0], pix3[0]));
178 s += abs(pix1[1] - avg2(pix2[1], pix3[1]));
179 s += abs(pix1[2] - avg2(pix2[2], pix3[2]));
180 s += abs(pix1[3] - avg2(pix2[3], pix3[3]));
181 s += abs(pix1[4] - avg2(pix2[4], pix3[4]));
182 s += abs(pix1[5] - avg2(pix2[5], pix3[5]));
183 s += abs(pix1[6] - avg2(pix2[6], pix3[6]));
184 s += abs(pix1[7] - avg2(pix2[7], pix3[7]));
185 s += abs(pix1[8] - avg2(pix2[8], pix3[8]));
186 s += abs(pix1[9] - avg2(pix2[9], pix3[9]));
187 s += abs(pix1[10] - avg2(pix2[10], pix3[10]));
188 s += abs(pix1[11] - avg2(pix2[11], pix3[11]));
189 s += abs(pix1[12] - avg2(pix2[12], pix3[12]));
190 s += abs(pix1[13] - avg2(pix2[13], pix3[13]));
191 s += abs(pix1[14] - avg2(pix2[14], pix3[14]));
192 s += abs(pix1[15] - avg2(pix2[15], pix3[15]));
200 static int pix_abs16_xy2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
201 ptrdiff_t stride, int h)
204 uint8_t *pix3 = pix2 + stride;
206 for (i = 0; i < h; i++) {
207 s += abs(pix1[0] - avg4(pix2[0], pix2[1], pix3[0], pix3[1]));
208 s += abs(pix1[1] - avg4(pix2[1], pix2[2], pix3[1], pix3[2]));
209 s += abs(pix1[2] - avg4(pix2[2], pix2[3], pix3[2], pix3[3]));
210 s += abs(pix1[3] - avg4(pix2[3], pix2[4], pix3[3], pix3[4]));
211 s += abs(pix1[4] - avg4(pix2[4], pix2[5], pix3[4], pix3[5]));
212 s += abs(pix1[5] - avg4(pix2[5], pix2[6], pix3[5], pix3[6]));
213 s += abs(pix1[6] - avg4(pix2[6], pix2[7], pix3[6], pix3[7]));
214 s += abs(pix1[7] - avg4(pix2[7], pix2[8], pix3[7], pix3[8]));
215 s += abs(pix1[8] - avg4(pix2[8], pix2[9], pix3[8], pix3[9]));
216 s += abs(pix1[9] - avg4(pix2[9], pix2[10], pix3[9], pix3[10]));
217 s += abs(pix1[10] - avg4(pix2[10], pix2[11], pix3[10], pix3[11]));
218 s += abs(pix1[11] - avg4(pix2[11], pix2[12], pix3[11], pix3[12]));
219 s += abs(pix1[12] - avg4(pix2[12], pix2[13], pix3[12], pix3[13]));
220 s += abs(pix1[13] - avg4(pix2[13], pix2[14], pix3[13], pix3[14]));
221 s += abs(pix1[14] - avg4(pix2[14], pix2[15], pix3[14], pix3[15]));
222 s += abs(pix1[15] - avg4(pix2[15], pix2[16], pix3[15], pix3[16]));
230 static inline int pix_abs8_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
231 ptrdiff_t stride, int h)
235 for (i = 0; i < h; i++) {
236 s += abs(pix1[0] - pix2[0]);
237 s += abs(pix1[1] - pix2[1]);
238 s += abs(pix1[2] - pix2[2]);
239 s += abs(pix1[3] - pix2[3]);
240 s += abs(pix1[4] - pix2[4]);
241 s += abs(pix1[5] - pix2[5]);
242 s += abs(pix1[6] - pix2[6]);
243 s += abs(pix1[7] - pix2[7]);
250 static int pix_abs8_x2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
251 ptrdiff_t stride, int h)
255 for (i = 0; i < h; i++) {
256 s += abs(pix1[0] - avg2(pix2[0], pix2[1]));
257 s += abs(pix1[1] - avg2(pix2[1], pix2[2]));
258 s += abs(pix1[2] - avg2(pix2[2], pix2[3]));
259 s += abs(pix1[3] - avg2(pix2[3], pix2[4]));
260 s += abs(pix1[4] - avg2(pix2[4], pix2[5]));
261 s += abs(pix1[5] - avg2(pix2[5], pix2[6]));
262 s += abs(pix1[6] - avg2(pix2[6], pix2[7]));
263 s += abs(pix1[7] - avg2(pix2[7], pix2[8]));
270 static int pix_abs8_y2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
271 ptrdiff_t stride, int h)
274 uint8_t *pix3 = pix2 + stride;
276 for (i = 0; i < h; i++) {
277 s += abs(pix1[0] - avg2(pix2[0], pix3[0]));
278 s += abs(pix1[1] - avg2(pix2[1], pix3[1]));
279 s += abs(pix1[2] - avg2(pix2[2], pix3[2]));
280 s += abs(pix1[3] - avg2(pix2[3], pix3[3]));
281 s += abs(pix1[4] - avg2(pix2[4], pix3[4]));
282 s += abs(pix1[5] - avg2(pix2[5], pix3[5]));
283 s += abs(pix1[6] - avg2(pix2[6], pix3[6]));
284 s += abs(pix1[7] - avg2(pix2[7], pix3[7]));
292 static int pix_abs8_xy2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
293 ptrdiff_t stride, int h)
296 uint8_t *pix3 = pix2 + stride;
298 for (i = 0; i < h; i++) {
299 s += abs(pix1[0] - avg4(pix2[0], pix2[1], pix3[0], pix3[1]));
300 s += abs(pix1[1] - avg4(pix2[1], pix2[2], pix3[1], pix3[2]));
301 s += abs(pix1[2] - avg4(pix2[2], pix2[3], pix3[2], pix3[3]));
302 s += abs(pix1[3] - avg4(pix2[3], pix2[4], pix3[3], pix3[4]));
303 s += abs(pix1[4] - avg4(pix2[4], pix2[5], pix3[4], pix3[5]));
304 s += abs(pix1[5] - avg4(pix2[5], pix2[6], pix3[5], pix3[6]));
305 s += abs(pix1[6] - avg4(pix2[6], pix2[7], pix3[6], pix3[7]));
306 s += abs(pix1[7] - avg4(pix2[7], pix2[8], pix3[7], pix3[8]));
314 static int nsse16_c(MpegEncContext *c, uint8_t *s1, uint8_t *s2,
315 ptrdiff_t stride, int h)
317 int score1 = 0, score2 = 0, x, y;
319 for (y = 0; y < h; y++) {
320 for (x = 0; x < 16; x++)
321 score1 += (s1[x] - s2[x]) * (s1[x] - s2[x]);
323 for (x = 0; x < 15; x++)
324 score2 += FFABS(s1[x] - s1[x + stride] -
325 s1[x + 1] + s1[x + stride + 1]) -
326 FFABS(s2[x] - s2[x + stride] -
327 s2[x + 1] + s2[x + stride + 1]);
334 return score1 + FFABS(score2) * c->avctx->nsse_weight;
336 return score1 + FFABS(score2) * 8;
339 static int nsse8_c(MpegEncContext *c, uint8_t *s1, uint8_t *s2,
340 ptrdiff_t stride, int h)
342 int score1 = 0, score2 = 0, x, y;
344 for (y = 0; y < h; y++) {
345 for (x = 0; x < 8; x++)
346 score1 += (s1[x] - s2[x]) * (s1[x] - s2[x]);
348 for (x = 0; x < 7; x++)
349 score2 += FFABS(s1[x] - s1[x + stride] -
350 s1[x + 1] + s1[x + stride + 1]) -
351 FFABS(s2[x] - s2[x + stride] -
352 s2[x + 1] + s2[x + stride + 1]);
359 return score1 + FFABS(score2) * c->avctx->nsse_weight;
361 return score1 + FFABS(score2) * 8;
364 static int zero_cmp(MpegEncContext *s, uint8_t *a, uint8_t *b,
365 ptrdiff_t stride, int h)
370 void ff_set_cmp(MECmpContext *c, me_cmp_func *cmp, int type)
374 memset(cmp, 0, sizeof(void *) * 6);
376 for (i = 0; i < 6; i++) {
377 switch (type & 0xFF) {
382 cmp[i] = c->hadamard8_diff[i];
388 cmp[i] = c->dct_sad[i];
391 cmp[i] = c->dct264_sad[i];
394 cmp[i] = c->dct_max[i];
397 cmp[i] = c->quant_psnr[i];
426 av_log(NULL, AV_LOG_ERROR,
427 "internal error in cmp function selection\n");
432 #define BUTTERFLY2(o1, o2, i1, i2) \
436 #define BUTTERFLY1(x, y) \
445 #define BUTTERFLYA(x, y) (FFABS((x) + (y)) + FFABS((x) - (y)))
447 static int hadamard8_diff8x8_c(MpegEncContext *s, uint8_t *dst,
448 uint8_t *src, ptrdiff_t stride, int h)
450 int i, temp[64], sum = 0;
454 for (i = 0; i < 8; i++) {
455 // FIXME: try pointer walks
456 BUTTERFLY2(temp[8 * i + 0], temp[8 * i + 1],
457 src[stride * i + 0] - dst[stride * i + 0],
458 src[stride * i + 1] - dst[stride * i + 1]);
459 BUTTERFLY2(temp[8 * i + 2], temp[8 * i + 3],
460 src[stride * i + 2] - dst[stride * i + 2],
461 src[stride * i + 3] - dst[stride * i + 3]);
462 BUTTERFLY2(temp[8 * i + 4], temp[8 * i + 5],
463 src[stride * i + 4] - dst[stride * i + 4],
464 src[stride * i + 5] - dst[stride * i + 5]);
465 BUTTERFLY2(temp[8 * i + 6], temp[8 * i + 7],
466 src[stride * i + 6] - dst[stride * i + 6],
467 src[stride * i + 7] - dst[stride * i + 7]);
469 BUTTERFLY1(temp[8 * i + 0], temp[8 * i + 2]);
470 BUTTERFLY1(temp[8 * i + 1], temp[8 * i + 3]);
471 BUTTERFLY1(temp[8 * i + 4], temp[8 * i + 6]);
472 BUTTERFLY1(temp[8 * i + 5], temp[8 * i + 7]);
474 BUTTERFLY1(temp[8 * i + 0], temp[8 * i + 4]);
475 BUTTERFLY1(temp[8 * i + 1], temp[8 * i + 5]);
476 BUTTERFLY1(temp[8 * i + 2], temp[8 * i + 6]);
477 BUTTERFLY1(temp[8 * i + 3], temp[8 * i + 7]);
480 for (i = 0; i < 8; i++) {
481 BUTTERFLY1(temp[8 * 0 + i], temp[8 * 1 + i]);
482 BUTTERFLY1(temp[8 * 2 + i], temp[8 * 3 + i]);
483 BUTTERFLY1(temp[8 * 4 + i], temp[8 * 5 + i]);
484 BUTTERFLY1(temp[8 * 6 + i], temp[8 * 7 + i]);
486 BUTTERFLY1(temp[8 * 0 + i], temp[8 * 2 + i]);
487 BUTTERFLY1(temp[8 * 1 + i], temp[8 * 3 + i]);
488 BUTTERFLY1(temp[8 * 4 + i], temp[8 * 6 + i]);
489 BUTTERFLY1(temp[8 * 5 + i], temp[8 * 7 + i]);
491 sum += BUTTERFLYA(temp[8 * 0 + i], temp[8 * 4 + i]) +
492 BUTTERFLYA(temp[8 * 1 + i], temp[8 * 5 + i]) +
493 BUTTERFLYA(temp[8 * 2 + i], temp[8 * 6 + i]) +
494 BUTTERFLYA(temp[8 * 3 + i], temp[8 * 7 + i]);
499 static int hadamard8_intra8x8_c(MpegEncContext *s, uint8_t *src,
500 uint8_t *dummy, ptrdiff_t stride, int h)
502 int i, temp[64], sum = 0;
506 for (i = 0; i < 8; i++) {
507 // FIXME: try pointer walks
508 BUTTERFLY2(temp[8 * i + 0], temp[8 * i + 1],
509 src[stride * i + 0], src[stride * i + 1]);
510 BUTTERFLY2(temp[8 * i + 2], temp[8 * i + 3],
511 src[stride * i + 2], src[stride * i + 3]);
512 BUTTERFLY2(temp[8 * i + 4], temp[8 * i + 5],
513 src[stride * i + 4], src[stride * i + 5]);
514 BUTTERFLY2(temp[8 * i + 6], temp[8 * i + 7],
515 src[stride * i + 6], src[stride * i + 7]);
517 BUTTERFLY1(temp[8 * i + 0], temp[8 * i + 2]);
518 BUTTERFLY1(temp[8 * i + 1], temp[8 * i + 3]);
519 BUTTERFLY1(temp[8 * i + 4], temp[8 * i + 6]);
520 BUTTERFLY1(temp[8 * i + 5], temp[8 * i + 7]);
522 BUTTERFLY1(temp[8 * i + 0], temp[8 * i + 4]);
523 BUTTERFLY1(temp[8 * i + 1], temp[8 * i + 5]);
524 BUTTERFLY1(temp[8 * i + 2], temp[8 * i + 6]);
525 BUTTERFLY1(temp[8 * i + 3], temp[8 * i + 7]);
528 for (i = 0; i < 8; i++) {
529 BUTTERFLY1(temp[8 * 0 + i], temp[8 * 1 + i]);
530 BUTTERFLY1(temp[8 * 2 + i], temp[8 * 3 + i]);
531 BUTTERFLY1(temp[8 * 4 + i], temp[8 * 5 + i]);
532 BUTTERFLY1(temp[8 * 6 + i], temp[8 * 7 + i]);
534 BUTTERFLY1(temp[8 * 0 + i], temp[8 * 2 + i]);
535 BUTTERFLY1(temp[8 * 1 + i], temp[8 * 3 + i]);
536 BUTTERFLY1(temp[8 * 4 + i], temp[8 * 6 + i]);
537 BUTTERFLY1(temp[8 * 5 + i], temp[8 * 7 + i]);
540 BUTTERFLYA(temp[8 * 0 + i], temp[8 * 4 + i])
541 + BUTTERFLYA(temp[8 * 1 + i], temp[8 * 5 + i])
542 + BUTTERFLYA(temp[8 * 2 + i], temp[8 * 6 + i])
543 + BUTTERFLYA(temp[8 * 3 + i], temp[8 * 7 + i]);
546 sum -= FFABS(temp[8 * 0] + temp[8 * 4]); // -mean
551 static int dct_sad8x8_c(MpegEncContext *s, uint8_t *src1,
552 uint8_t *src2, ptrdiff_t stride, int h)
554 LOCAL_ALIGNED_16(int16_t, temp, [64]);
558 s->pdsp.diff_pixels(temp, src1, src2, stride);
560 return s->mecc.sum_abs_dctelem(temp);
566 const int s07 = SRC(0) + SRC(7); \
567 const int s16 = SRC(1) + SRC(6); \
568 const int s25 = SRC(2) + SRC(5); \
569 const int s34 = SRC(3) + SRC(4); \
570 const int a0 = s07 + s34; \
571 const int a1 = s16 + s25; \
572 const int a2 = s07 - s34; \
573 const int a3 = s16 - s25; \
574 const int d07 = SRC(0) - SRC(7); \
575 const int d16 = SRC(1) - SRC(6); \
576 const int d25 = SRC(2) - SRC(5); \
577 const int d34 = SRC(3) - SRC(4); \
578 const int a4 = d16 + d25 + (d07 + (d07 >> 1)); \
579 const int a5 = d07 - d34 - (d25 + (d25 >> 1)); \
580 const int a6 = d07 + d34 - (d16 + (d16 >> 1)); \
581 const int a7 = d16 - d25 + (d34 + (d34 >> 1)); \
583 DST(1, a4 + (a7 >> 2)); \
584 DST(2, a2 + (a3 >> 1)); \
585 DST(3, a5 + (a6 >> 2)); \
587 DST(5, a6 - (a5 >> 2)); \
588 DST(6, (a2 >> 1) - a3); \
589 DST(7, (a4 >> 2) - a7); \
592 static int dct264_sad8x8_c(MpegEncContext *s, uint8_t *src1,
593 uint8_t *src2, ptrdiff_t stride, int h)
598 s->pdsp.diff_pixels(dct[0], src1, src2, stride);
600 #define SRC(x) dct[i][x]
601 #define DST(x, v) dct[i][x] = v
602 for (i = 0; i < 8; i++)
607 #define SRC(x) dct[x][i]
608 #define DST(x, v) sum += FFABS(v)
609 for (i = 0; i < 8; i++)
617 static int dct_max8x8_c(MpegEncContext *s, uint8_t *src1,
618 uint8_t *src2, ptrdiff_t stride, int h)
620 LOCAL_ALIGNED_16(int16_t, temp, [64]);
625 s->pdsp.diff_pixels(temp, src1, src2, stride);
628 for (i = 0; i < 64; i++)
629 sum = FFMAX(sum, FFABS(temp[i]));
634 static int quant_psnr8x8_c(MpegEncContext *s, uint8_t *src1,
635 uint8_t *src2, ptrdiff_t stride, int h)
637 LOCAL_ALIGNED_16(int16_t, temp, [64 * 2]);
638 int16_t *const bak = temp + 64;
644 s->pdsp.diff_pixels(temp, src1, src2, stride);
646 memcpy(bak, temp, 64 * sizeof(int16_t));
648 s->block_last_index[0 /* FIXME */] =
649 s->fast_dct_quantize(s, temp, 0 /* FIXME */, s->qscale, &i);
650 s->dct_unquantize_inter(s, temp, 0, s->qscale);
651 ff_simple_idct_8(temp); // FIXME
653 for (i = 0; i < 64; i++)
654 sum += (temp[i] - bak[i]) * (temp[i] - bak[i]);
659 static int rd8x8_c(MpegEncContext *s, uint8_t *src1, uint8_t *src2,
660 ptrdiff_t stride, int h)
662 const uint8_t *scantable = s->intra_scantable.permutated;
663 LOCAL_ALIGNED_16(int16_t, temp, [64]);
664 LOCAL_ALIGNED_16(uint8_t, lsrc1, [64]);
665 LOCAL_ALIGNED_16(uint8_t, lsrc2, [64]);
666 int i, last, run, bits, level, distortion, start_i;
667 const int esc_length = s->ac_esc_length;
668 uint8_t *length, *last_length;
672 copy_block8(lsrc1, src1, 8, stride, 8);
673 copy_block8(lsrc2, src2, 8, stride, 8);
675 s->pdsp.diff_pixels(temp, lsrc1, lsrc2, 8);
677 s->block_last_index[0 /* FIXME */] =
679 s->fast_dct_quantize(s, temp, 0 /* FIXME */, s->qscale, &i);
685 length = s->intra_ac_vlc_length;
686 last_length = s->intra_ac_vlc_last_length;
687 bits += s->luma_dc_vlc_length[temp[0] + 256]; // FIXME: chroma
690 length = s->inter_ac_vlc_length;
691 last_length = s->inter_ac_vlc_last_length;
694 if (last >= start_i) {
696 for (i = start_i; i < last; i++) {
697 int j = scantable[i];
702 if ((level & (~127)) == 0)
703 bits += length[UNI_AC_ENC_INDEX(run, level)];
712 level = temp[i] + 64;
714 av_assert2(level - 64);
716 if ((level & (~127)) == 0) {
717 bits += last_length[UNI_AC_ENC_INDEX(run, level)];
724 s->dct_unquantize_intra(s, temp, 0, s->qscale);
726 s->dct_unquantize_inter(s, temp, 0, s->qscale);
729 s->idsp.idct_add(lsrc2, 8, temp);
731 distortion = s->mecc.sse[1](NULL, lsrc2, lsrc1, 8, 8);
733 return distortion + ((bits * s->qscale * s->qscale * 109 + 64) >> 7);
736 static int bit8x8_c(MpegEncContext *s, uint8_t *src1, uint8_t *src2,
737 ptrdiff_t stride, int h)
739 const uint8_t *scantable = s->intra_scantable.permutated;
740 LOCAL_ALIGNED_16(int16_t, temp, [64]);
741 int i, last, run, bits, level, start_i;
742 const int esc_length = s->ac_esc_length;
743 uint8_t *length, *last_length;
747 s->pdsp.diff_pixels(temp, src1, src2, stride);
749 s->block_last_index[0 /* FIXME */] =
751 s->fast_dct_quantize(s, temp, 0 /* FIXME */, s->qscale, &i);
757 length = s->intra_ac_vlc_length;
758 last_length = s->intra_ac_vlc_last_length;
759 bits += s->luma_dc_vlc_length[temp[0] + 256]; // FIXME: chroma
762 length = s->inter_ac_vlc_length;
763 last_length = s->inter_ac_vlc_last_length;
766 if (last >= start_i) {
768 for (i = start_i; i < last; i++) {
769 int j = scantable[i];
774 if ((level & (~127)) == 0)
775 bits += length[UNI_AC_ENC_INDEX(run, level)];
784 level = temp[i] + 64;
786 av_assert2(level - 64);
788 if ((level & (~127)) == 0)
789 bits += last_length[UNI_AC_ENC_INDEX(run, level)];
797 #define VSAD_INTRA(size) \
798 static int vsad_intra ## size ## _c(MpegEncContext *c, \
799 uint8_t *s, uint8_t *dummy, \
800 ptrdiff_t stride, int h) \
802 int score = 0, x, y; \
804 for (y = 1; y < h; y++) { \
805 for (x = 0; x < size; x += 4) { \
806 score += FFABS(s[x] - s[x + stride]) + \
807 FFABS(s[x + 1] - s[x + stride + 1]) + \
808 FFABS(s[x + 2] - s[x + 2 + stride]) + \
809 FFABS(s[x + 3] - s[x + 3 + stride]); \
820 static int vsad ## size ## _c(MpegEncContext *c, \
821 uint8_t *s1, uint8_t *s2, \
822 ptrdiff_t stride, int h) \
824 int score = 0, x, y; \
826 for (y = 1; y < h; y++) { \
827 for (x = 0; x < size; x++) \
828 score += FFABS(s1[x] - s2[x] - s1[x + stride] + s2[x + stride]); \
838 #define SQ(a) ((a) * (a))
839 #define VSSE_INTRA(size) \
840 static int vsse_intra ## size ## _c(MpegEncContext *c, \
841 uint8_t *s, uint8_t *dummy, \
842 ptrdiff_t stride, int h) \
844 int score = 0, x, y; \
846 for (y = 1; y < h; y++) { \
847 for (x = 0; x < size; x += 4) { \
848 score += SQ(s[x] - s[x + stride]) + \
849 SQ(s[x + 1] - s[x + stride + 1]) + \
850 SQ(s[x + 2] - s[x + stride + 2]) + \
851 SQ(s[x + 3] - s[x + stride + 3]); \
862 static int vsse ## size ## _c(MpegEncContext *c, uint8_t *s1, uint8_t *s2, \
863 ptrdiff_t stride, int h) \
865 int score = 0, x, y; \
867 for (y = 1; y < h; y++) { \
868 for (x = 0; x < size; x++) \
869 score += SQ(s1[x] - s2[x] - s1[x + stride] + s2[x + stride]); \
879 #define WRAPPER8_16_SQ(name8, name16) \
880 static int name16(MpegEncContext *s, uint8_t *dst, uint8_t *src, \
881 ptrdiff_t stride, int h) \
885 score += name8(s, dst, src, stride, 8); \
886 score += name8(s, dst + 8, src + 8, stride, 8); \
890 score += name8(s, dst, src, stride, 8); \
891 score += name8(s, dst + 8, src + 8, stride, 8); \
896 WRAPPER8_16_SQ(hadamard8_diff8x8_c, hadamard8_diff16_c)
897 WRAPPER8_16_SQ(hadamard8_intra8x8_c, hadamard8_intra16_c)
898 WRAPPER8_16_SQ(dct_sad8x8_c, dct_sad16_c)
900 WRAPPER8_16_SQ(dct264_sad8x8_c, dct264_sad16_c)
902 WRAPPER8_16_SQ(dct_max8x8_c, dct_max16_c)
903 WRAPPER8_16_SQ(quant_psnr8x8_c, quant_psnr16_c)
904 WRAPPER8_16_SQ(rd8x8_c, rd16_c)
905 WRAPPER8_16_SQ(bit8x8_c, bit16_c)
907 av_cold void ff_me_cmp_init_static(void)
911 for (i = 0; i < 512; i++)
912 ff_square_tab[i] = (i - 256) * (i - 256);
915 int ff_check_alignment(void)
917 static int did_fail = 0;
918 LOCAL_ALIGNED_16(int, aligned, [4]);
920 if ((intptr_t)aligned & 15) {
922 #if HAVE_MMX || HAVE_ALTIVEC
923 av_log(NULL, AV_LOG_ERROR,
924 "Compiler did not align stack variables. Libavcodec has been miscompiled\n"
925 "and may be very slow or crash. This is not a bug in libavcodec,\n"
926 "but in the compiler. You may try recompiling using gcc >= 4.2.\n"
927 "Do not report crashes to FFmpeg developers.\n");
936 av_cold void ff_me_cmp_init(MECmpContext *c, AVCodecContext *avctx)
938 ff_check_alignment();
940 c->sum_abs_dctelem = sum_abs_dctelem_c;
942 /* TODO [0] 16 [1] 8 */
943 c->pix_abs[0][0] = pix_abs16_c;
944 c->pix_abs[0][1] = pix_abs16_x2_c;
945 c->pix_abs[0][2] = pix_abs16_y2_c;
946 c->pix_abs[0][3] = pix_abs16_xy2_c;
947 c->pix_abs[1][0] = pix_abs8_c;
948 c->pix_abs[1][1] = pix_abs8_x2_c;
949 c->pix_abs[1][2] = pix_abs8_y2_c;
950 c->pix_abs[1][3] = pix_abs8_xy2_c;
952 #define SET_CMP_FUNC(name) \
953 c->name[0] = name ## 16_c; \
954 c->name[1] = name ## 8x8_c;
956 SET_CMP_FUNC(hadamard8_diff)
957 c->hadamard8_diff[4] = hadamard8_intra16_c;
958 c->hadamard8_diff[5] = hadamard8_intra8x8_c;
959 SET_CMP_FUNC(dct_sad)
960 SET_CMP_FUNC(dct_max)
962 SET_CMP_FUNC(dct264_sad)
964 c->sad[0] = pix_abs16_c;
965 c->sad[1] = pix_abs8_c;
969 SET_CMP_FUNC(quant_psnr)
972 c->vsad[0] = vsad16_c;
973 c->vsad[1] = vsad8_c;
974 c->vsad[4] = vsad_intra16_c;
975 c->vsad[5] = vsad_intra8_c;
976 c->vsse[0] = vsse16_c;
977 c->vsse[1] = vsse8_c;
978 c->vsse[4] = vsse_intra16_c;
979 c->vsse[5] = vsse_intra8_c;
980 c->nsse[0] = nsse16_c;
981 c->nsse[1] = nsse8_c;
982 #if CONFIG_SNOW_DECODER || CONFIG_SNOW_ENCODER
983 ff_dsputil_init_dwt(c);
987 ff_me_cmp_init_alpha(c, avctx);
989 ff_me_cmp_init_arm(c, avctx);
991 ff_me_cmp_init_ppc(c, avctx);
993 ff_me_cmp_init_x86(c, avctx);