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Imported Debian version 2.5.0~trusty1.1
[deb_ffmpeg.git] / ffmpeg / libavcodec / h264_mb.c
CommitLineData
2ba45a60
DM		 1/*
2 * H.26L/H.264/AVC/JVT/14496-10/... decoder
3 * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22/**
23 * @file
24 * H.264 / AVC / MPEG4 part10 macroblock decoding
25 */
26
27#include <stdint.h>
28
29#include "config.h"
30
31#include "libavutil/common.h"
32#include "libavutil/intreadwrite.h"
33#include "avcodec.h"
34#include "h264.h"
35#include "qpeldsp.h"
36#include "svq3.h"
37#include "thread.h"
38
39static inline int get_lowest_part_list_y(H264Context *h, H264Picture *pic, int n,
40 int height, int y_offset, int list)
41{
42 int raw_my = h->mv_cache[list][scan8[n]][1];
43 int filter_height_down = (raw_my & 3) ? 3 : 0;
44 int full_my = (raw_my >> 2) + y_offset;
45 int bottom = full_my + filter_height_down + height;
46
47 av_assert2(height >= 0);
48
49 return FFMAX(0, bottom);
50}
51
f6fa7814 52static inline void get_lowest_part_y(H264Context *h, int16_t refs[2][48], int n,
2ba45a60
DM		 53 int height, int y_offset, int list0,
54 int list1, int *nrefs)
55{
56 int my;
57
58 y_offset += 16 * (h->mb_y >> MB_FIELD(h));
59
60 if (list0) {
61 int ref_n = h->ref_cache[0][scan8[n]];
62 H264Picture *ref = &h->ref_list[0][ref_n];
63
64 // Error resilience puts the current picture in the ref list.
65 // Don't try to wait on these as it will cause a deadlock.
66 // Fields can wait on each other, though.
67 if (ref->tf.progress->data != h->cur_pic.tf.progress->data ||
68 (ref->reference & 3) != h->picture_structure) {
69 my = get_lowest_part_list_y(h, ref, n, height, y_offset, 0);
70 if (refs[0][ref_n] < 0)
71 nrefs[0] += 1;
72 refs[0][ref_n] = FFMAX(refs[0][ref_n], my);
73 }
74 }
75
76 if (list1) {
77 int ref_n = h->ref_cache[1][scan8[n]];
78 H264Picture *ref = &h->ref_list[1][ref_n];
79
80 if (ref->tf.progress->data != h->cur_pic.tf.progress->data ||
81 (ref->reference & 3) != h->picture_structure) {
82 my = get_lowest_part_list_y(h, ref, n, height, y_offset, 1);
83 if (refs[1][ref_n] < 0)
84 nrefs[1] += 1;
85 refs[1][ref_n] = FFMAX(refs[1][ref_n], my);
86 }
87 }
88}
89
90/**
91 * Wait until all reference frames are available for MC operations.
92 *
93 * @param h the H264 context
94 */
95static void await_references(H264Context *h)
96{
97 const int mb_xy = h->mb_xy;
98 const int mb_type = h->cur_pic.mb_type[mb_xy];
f6fa7814 99 int16_t refs[2][48];
2ba45a60
DM		 100 int nrefs[2] = { 0 };
101 int ref, list;
102
103 memset(refs, -1, sizeof(refs));
104
105 if (IS_16X16(mb_type)) {
106 get_lowest_part_y(h, refs, 0, 16, 0,
107 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);
108 } else if (IS_16X8(mb_type)) {
109 get_lowest_part_y(h, refs, 0, 8, 0,
110 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);
111 get_lowest_part_y(h, refs, 8, 8, 8,
112 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1), nrefs);
113 } else if (IS_8X16(mb_type)) {
114 get_lowest_part_y(h, refs, 0, 16, 0,
115 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);
116 get_lowest_part_y(h, refs, 4, 16, 0,
117 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1), nrefs);
118 } else {
119 int i;
120
121 av_assert2(IS_8X8(mb_type));
122
123 for (i = 0; i < 4; i++) {
124 const int sub_mb_type = h->sub_mb_type[i];
125 const int n = 4 * i;
126 int y_offset = (i & 2) << 2;
127
128 if (IS_SUB_8X8(sub_mb_type)) {
129 get_lowest_part_y(h, refs, n, 8, y_offset,
130 IS_DIR(sub_mb_type, 0, 0),
131 IS_DIR(sub_mb_type, 0, 1),
132 nrefs);
133 } else if (IS_SUB_8X4(sub_mb_type)) {
134 get_lowest_part_y(h, refs, n, 4, y_offset,
135 IS_DIR(sub_mb_type, 0, 0),
136 IS_DIR(sub_mb_type, 0, 1),
137 nrefs);
138 get_lowest_part_y(h, refs, n + 2, 4, y_offset + 4,
139 IS_DIR(sub_mb_type, 0, 0),
140 IS_DIR(sub_mb_type, 0, 1),
141 nrefs);
142 } else if (IS_SUB_4X8(sub_mb_type)) {
143 get_lowest_part_y(h, refs, n, 8, y_offset,
144 IS_DIR(sub_mb_type, 0, 0),
145 IS_DIR(sub_mb_type, 0, 1),
146 nrefs);
147 get_lowest_part_y(h, refs, n + 1, 8, y_offset,
148 IS_DIR(sub_mb_type, 0, 0),
149 IS_DIR(sub_mb_type, 0, 1),
150 nrefs);
151 } else {
152 int j;
153 av_assert2(IS_SUB_4X4(sub_mb_type));
154 for (j = 0; j < 4; j++) {
155 int sub_y_offset = y_offset + 2 * (j & 2);
156 get_lowest_part_y(h, refs, n + j, 4, sub_y_offset,
157 IS_DIR(sub_mb_type, 0, 0),
158 IS_DIR(sub_mb_type, 0, 1),
159 nrefs);
160 }
161 }
162 }
163 }
164
165 for (list = h->list_count - 1; list >= 0; list--)
166 for (ref = 0; ref < 48 && nrefs[list]; ref++) {
167 int row = refs[list][ref];
168 if (row >= 0) {
169 H264Picture *ref_pic = &h->ref_list[list][ref];
170 int ref_field = ref_pic->reference - 1;
171 int ref_field_picture = ref_pic->field_picture;
172 int pic_height = 16 * h->mb_height >> ref_field_picture;
173
174 row <<= MB_MBAFF(h);
175 nrefs[list]--;
176
177 if (!FIELD_PICTURE(h) && ref_field_picture) { // frame referencing two fields
178 ff_thread_await_progress(&ref_pic->tf,
179 FFMIN((row >> 1) - !(row & 1),
180 pic_height - 1),
181 1);
182 ff_thread_await_progress(&ref_pic->tf,
183 FFMIN((row >> 1), pic_height - 1),
184 0);
185 } else if (FIELD_PICTURE(h) && !ref_field_picture) { // field referencing one field of a frame
186 ff_thread_await_progress(&ref_pic->tf,
187 FFMIN(row * 2 + ref_field,
188 pic_height - 1),
189 0);
190 } else if (FIELD_PICTURE(h)) {
191 ff_thread_await_progress(&ref_pic->tf,
192 FFMIN(row, pic_height - 1),
193 ref_field);
194 } else {
195 ff_thread_await_progress(&ref_pic->tf,
196 FFMIN(row, pic_height - 1),
197 0);
198 }
199 }
200 }
201}
202
203static av_always_inline void mc_dir_part(H264Context *h, H264Picture *pic,
204 int n, int square, int height,
205 int delta, int list,
206 uint8_t *dest_y, uint8_t *dest_cb,
207 uint8_t *dest_cr,
208 int src_x_offset, int src_y_offset,
209 qpel_mc_func *qpix_op,
210 h264_chroma_mc_func chroma_op,
211 int pixel_shift, int chroma_idc)
212{
213 const int mx = h->mv_cache[list][scan8[n]][0] + src_x_offset * 8;
214 int my = h->mv_cache[list][scan8[n]][1] + src_y_offset * 8;
215 const int luma_xy = (mx & 3) + ((my & 3) << 2);
216 ptrdiff_t offset = ((mx >> 2) << pixel_shift) + (my >> 2) * h->mb_linesize;
217 uint8_t *src_y = pic->f.data[0] + offset;
218 uint8_t *src_cb, *src_cr;
219 int extra_width = 0;
220 int extra_height = 0;
221 int emu = 0;
222 const int full_mx = mx >> 2;
223 const int full_my = my >> 2;
224 const int pic_width = 16 * h->mb_width;
225 const int pic_height = 16 * h->mb_height >> MB_FIELD(h);
226 int ysh;
227
228 if (mx & 7)
229 extra_width -= 3;
230 if (my & 7)
231 extra_height -= 3;
232
233 if (full_mx < 0 - extra_width ||
234 full_my < 0 - extra_height ||
235 full_mx + 16 /*FIXME*/ > pic_width + extra_width ||
236 full_my + 16 /*FIXME*/ > pic_height + extra_height) {
237 h->vdsp.emulated_edge_mc(h->edge_emu_buffer,
238 src_y - (2 << pixel_shift) - 2 * h->mb_linesize,
239 h->mb_linesize, h->mb_linesize,
240 16 + 5, 16 + 5 /*FIXME*/, full_mx - 2,
241 full_my - 2, pic_width, pic_height);
242 src_y = h->edge_emu_buffer + (2 << pixel_shift) + 2 * h->mb_linesize;
243 emu = 1;
244 }
245
246 qpix_op[luma_xy](dest_y, src_y, h->mb_linesize); // FIXME try variable height perhaps?
247 if (!square)
248 qpix_op[luma_xy](dest_y + delta, src_y + delta, h->mb_linesize);
249
250 if (CONFIG_GRAY && h->flags & CODEC_FLAG_GRAY)
251 return;
252
253 if (chroma_idc == 3 /* yuv444 */) {
254 src_cb = pic->f.data[1] + offset;
255 if (emu) {
256 h->vdsp.emulated_edge_mc(h->edge_emu_buffer,
257 src_cb - (2 << pixel_shift) - 2 * h->mb_linesize,
258 h->mb_linesize, h->mb_linesize,
259 16 + 5, 16 + 5 /*FIXME*/,
260 full_mx - 2, full_my - 2,
261 pic_width, pic_height);
262 src_cb = h->edge_emu_buffer + (2 << pixel_shift) + 2 * h->mb_linesize;
263 }
264 qpix_op[luma_xy](dest_cb, src_cb, h->mb_linesize); // FIXME try variable height perhaps?
265 if (!square)
266 qpix_op[luma_xy](dest_cb + delta, src_cb + delta, h->mb_linesize);
267
268 src_cr = pic->f.data[2] + offset;
269 if (emu) {
270 h->vdsp.emulated_edge_mc(h->edge_emu_buffer,
271 src_cr - (2 << pixel_shift) - 2 * h->mb_linesize,
272 h->mb_linesize, h->mb_linesize,
273 16 + 5, 16 + 5 /*FIXME*/,
274 full_mx - 2, full_my - 2,
275 pic_width, pic_height);
276 src_cr = h->edge_emu_buffer + (2 << pixel_shift) + 2 * h->mb_linesize;
277 }
278 qpix_op[luma_xy](dest_cr, src_cr, h->mb_linesize); // FIXME try variable height perhaps?
279 if (!square)
280 qpix_op[luma_xy](dest_cr + delta, src_cr + delta, h->mb_linesize);
281 return;
282 }
283
284 ysh = 3 - (chroma_idc == 2 /* yuv422 */);
285 if (chroma_idc == 1 /* yuv420 */ && MB_FIELD(h)) {
286 // chroma offset when predicting from a field of opposite parity
287 my += 2 * ((h->mb_y & 1) - (pic->reference - 1));
288 emu |= (my >> 3) < 0 || (my >> 3) + 8 >= (pic_height >> 1);
289 }
290
291 src_cb = pic->f.data[1] + ((mx >> 3) << pixel_shift) +
292 (my >> ysh) * h->mb_uvlinesize;
293 src_cr = pic->f.data[2] + ((mx >> 3) << pixel_shift) +
294 (my >> ysh) * h->mb_uvlinesize;
295
296 if (emu) {
297 h->vdsp.emulated_edge_mc(h->edge_emu_buffer, src_cb,
298 h->mb_uvlinesize, h->mb_uvlinesize,
299 9, 8 * chroma_idc + 1, (mx >> 3), (my >> ysh),
300 pic_width >> 1, pic_height >> (chroma_idc == 1 /* yuv420 */));
301 src_cb = h->edge_emu_buffer;
302 }
303 chroma_op(dest_cb, src_cb, h->mb_uvlinesize,
304 height >> (chroma_idc == 1 /* yuv420 */),
305 mx & 7, (my << (chroma_idc == 2 /* yuv422 */)) & 7);
306
307 if (emu) {
308 h->vdsp.emulated_edge_mc(h->edge_emu_buffer, src_cr,
309 h->mb_uvlinesize, h->mb_uvlinesize,
310 9, 8 * chroma_idc + 1, (mx >> 3), (my >> ysh),
311 pic_width >> 1, pic_height >> (chroma_idc == 1 /* yuv420 */));
312 src_cr = h->edge_emu_buffer;
313 }
314 chroma_op(dest_cr, src_cr, h->mb_uvlinesize, height >> (chroma_idc == 1 /* yuv420 */),
315 mx & 7, (my << (chroma_idc == 2 /* yuv422 */)) & 7);
316}
317
318static av_always_inline void mc_part_std(H264Context *h, int n, int square,
319 int height, int delta,
320 uint8_t *dest_y, uint8_t *dest_cb,
321 uint8_t *dest_cr,
322 int x_offset, int y_offset,
323 qpel_mc_func *qpix_put,
324 h264_chroma_mc_func chroma_put,
325 qpel_mc_func *qpix_avg,
326 h264_chroma_mc_func chroma_avg,
327 int list0, int list1,
328 int pixel_shift, int chroma_idc)
329{
330 qpel_mc_func *qpix_op = qpix_put;
331 h264_chroma_mc_func chroma_op = chroma_put;
332
333 dest_y += (2 * x_offset << pixel_shift) + 2 * y_offset * h->mb_linesize;
334 if (chroma_idc == 3 /* yuv444 */) {
335 dest_cb += (2 * x_offset << pixel_shift) + 2 * y_offset * h->mb_linesize;
336 dest_cr += (2 * x_offset << pixel_shift) + 2 * y_offset * h->mb_linesize;
337 } else if (chroma_idc == 2 /* yuv422 */) {
338 dest_cb += (x_offset << pixel_shift) + 2 * y_offset * h->mb_uvlinesize;
339 dest_cr += (x_offset << pixel_shift) + 2 * y_offset * h->mb_uvlinesize;
340 } else { /* yuv420 */
341 dest_cb += (x_offset << pixel_shift) + y_offset * h->mb_uvlinesize;
342 dest_cr += (x_offset << pixel_shift) + y_offset * h->mb_uvlinesize;
343 }
344 x_offset += 8 * h->mb_x;
345 y_offset += 8 * (h->mb_y >> MB_FIELD(h));
346
347 if (list0) {
348 H264Picture *ref = &h->ref_list[0][h->ref_cache[0][scan8[n]]];
349 mc_dir_part(h, ref, n, square, height, delta, 0,
350 dest_y, dest_cb, dest_cr, x_offset, y_offset,
351 qpix_op, chroma_op, pixel_shift, chroma_idc);
352
353 qpix_op = qpix_avg;
354 chroma_op = chroma_avg;
355 }
356
357 if (list1) {
358 H264Picture *ref = &h->ref_list[1][h->ref_cache[1][scan8[n]]];
359 mc_dir_part(h, ref, n, square, height, delta, 1,
360 dest_y, dest_cb, dest_cr, x_offset, y_offset,
361 qpix_op, chroma_op, pixel_shift, chroma_idc);
362 }
363}
364
365static av_always_inline void mc_part_weighted(H264Context *h, int n, int square,
366 int height, int delta,
367 uint8_t *dest_y, uint8_t *dest_cb,
368 uint8_t *dest_cr,
369 int x_offset, int y_offset,
370 qpel_mc_func *qpix_put,
371 h264_chroma_mc_func chroma_put,
372 h264_weight_func luma_weight_op,
373 h264_weight_func chroma_weight_op,
374 h264_biweight_func luma_weight_avg,
375 h264_biweight_func chroma_weight_avg,
376 int list0, int list1,
377 int pixel_shift, int chroma_idc)
378{
379 int chroma_height;
380
381 dest_y += (2 * x_offset << pixel_shift) + 2 * y_offset * h->mb_linesize;
382 if (chroma_idc == 3 /* yuv444 */) {
383 chroma_height = height;
384 chroma_weight_avg = luma_weight_avg;
385 chroma_weight_op = luma_weight_op;
386 dest_cb += (2 * x_offset << pixel_shift) + 2 * y_offset * h->mb_linesize;
387 dest_cr += (2 * x_offset << pixel_shift) + 2 * y_offset * h->mb_linesize;
388 } else if (chroma_idc == 2 /* yuv422 */) {
389 chroma_height = height;
390 dest_cb += (x_offset << pixel_shift) + 2 * y_offset * h->mb_uvlinesize;
391 dest_cr += (x_offset << pixel_shift) + 2 * y_offset * h->mb_uvlinesize;
392 } else { /* yuv420 */
393 chroma_height = height >> 1;
394 dest_cb += (x_offset << pixel_shift) + y_offset * h->mb_uvlinesize;
395 dest_cr += (x_offset << pixel_shift) + y_offset * h->mb_uvlinesize;
396 }
397 x_offset += 8 * h->mb_x;
398 y_offset += 8 * (h->mb_y >> MB_FIELD(h));
399
400 if (list0 && list1) {
401 /* don't optimize for luma-only case, since B-frames usually
402 * use implicit weights => chroma too. */
403 uint8_t *tmp_cb = h->bipred_scratchpad;
404 uint8_t *tmp_cr = h->bipred_scratchpad + (16 << pixel_shift);
405 uint8_t *tmp_y = h->bipred_scratchpad + 16 * h->mb_uvlinesize;
406 int refn0 = h->ref_cache[0][scan8[n]];
407 int refn1 = h->ref_cache[1][scan8[n]];
408
409 mc_dir_part(h, &h->ref_list[0][refn0], n, square, height, delta, 0,
410 dest_y, dest_cb, dest_cr,
411 x_offset, y_offset, qpix_put, chroma_put,
412 pixel_shift, chroma_idc);
413 mc_dir_part(h, &h->ref_list[1][refn1], n, square, height, delta, 1,
414 tmp_y, tmp_cb, tmp_cr,
415 x_offset, y_offset, qpix_put, chroma_put,
416 pixel_shift, chroma_idc);
417
418 if (h->use_weight == 2) {
419 int weight0 = h->implicit_weight[refn0][refn1][h->mb_y & 1];
420 int weight1 = 64 - weight0;
421 luma_weight_avg(dest_y, tmp_y, h->mb_linesize,
422 height, 5, weight0, weight1, 0);
423 if (!CONFIG_GRAY || !(h->flags & CODEC_FLAG_GRAY)) {
424 chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize,
425 chroma_height, 5, weight0, weight1, 0);
426 chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize,
427 chroma_height, 5, weight0, weight1, 0);
428 }
429 } else {
430 luma_weight_avg(dest_y, tmp_y, h->mb_linesize, height,
431 h->luma_log2_weight_denom,
432 h->luma_weight[refn0][0][0],
433 h->luma_weight[refn1][1][0],
434 h->luma_weight[refn0][0][1] +
435 h->luma_weight[refn1][1][1]);
436 if (!CONFIG_GRAY || !(h->flags & CODEC_FLAG_GRAY)) {
437 chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize, chroma_height,
438 h->chroma_log2_weight_denom,
439 h->chroma_weight[refn0][0][0][0],
440 h->chroma_weight[refn1][1][0][0],
441 h->chroma_weight[refn0][0][0][1] +
442 h->chroma_weight[refn1][1][0][1]);
443 chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize, chroma_height,
444 h->chroma_log2_weight_denom,
445 h->chroma_weight[refn0][0][1][0],
446 h->chroma_weight[refn1][1][1][0],
447 h->chroma_weight[refn0][0][1][1] +
448 h->chroma_weight[refn1][1][1][1]);
449 }
450 }
451 } else {
452 int list = list1 ? 1 : 0;
453 int refn = h->ref_cache[list][scan8[n]];
454 H264Picture *ref = &h->ref_list[list][refn];
455 mc_dir_part(h, ref, n, square, height, delta, list,
456 dest_y, dest_cb, dest_cr, x_offset, y_offset,
457 qpix_put, chroma_put, pixel_shift, chroma_idc);
458
459 luma_weight_op(dest_y, h->mb_linesize, height,
460 h->luma_log2_weight_denom,
461 h->luma_weight[refn][list][0],
462 h->luma_weight[refn][list][1]);
463 if (!CONFIG_GRAY || !(h->flags & CODEC_FLAG_GRAY)) {
464 if (h->use_weight_chroma) {
465 chroma_weight_op(dest_cb, h->mb_uvlinesize, chroma_height,
466 h->chroma_log2_weight_denom,
467 h->chroma_weight[refn][list][0][0],
468 h->chroma_weight[refn][list][0][1]);
469 chroma_weight_op(dest_cr, h->mb_uvlinesize, chroma_height,
470 h->chroma_log2_weight_denom,
471 h->chroma_weight[refn][list][1][0],
472 h->chroma_weight[refn][list][1][1]);
473 }
474 }
475 }
476}
477
478static av_always_inline void prefetch_motion(H264Context *h, int list,
479 int pixel_shift, int chroma_idc)
480{
481 /* fetch pixels for estimated mv 4 macroblocks ahead
482 * optimized for 64byte cache lines */
483 const int refn = h->ref_cache[list][scan8[0]];
484 if (refn >= 0) {
485 const int mx = (h->mv_cache[list][scan8[0]][0] >> 2) + 16 * h->mb_x + 8;
486 const int my = (h->mv_cache[list][scan8[0]][1] >> 2) + 16 * h->mb_y;
487 uint8_t **src = h->ref_list[list][refn].f.data;
488 int off = (mx << pixel_shift) +
489 (my + (h->mb_x & 3) * 4) * h->mb_linesize +
490 (64 << pixel_shift);
491 h->vdsp.prefetch(src[0] + off, h->linesize, 4);
492 if (chroma_idc == 3 /* yuv444 */) {
493 h->vdsp.prefetch(src[1] + off, h->linesize, 4);
494 h->vdsp.prefetch(src[2] + off, h->linesize, 4);
495 } else {
496 off= (((mx>>1)+64)<<pixel_shift) + ((my>>1) + (h->mb_x&7))*h->uvlinesize;
497 h->vdsp.prefetch(src[1] + off, src[2] - src[1], 2);
498 }
499 }
500}
501
502static av_always_inline void xchg_mb_border(H264Context *h, uint8_t *src_y,
503 uint8_t *src_cb, uint8_t *src_cr,
504 int linesize, int uvlinesize,
505 int xchg, int chroma444,
506 int simple, int pixel_shift)
507{
508 int deblock_topleft;
509 int deblock_top;
510 int top_idx = 1;
511 uint8_t *top_border_m1;
512 uint8_t *top_border;
513
514 if (!simple && FRAME_MBAFF(h)) {
515 if (h->mb_y & 1) {
516 if (!MB_MBAFF(h))
517 return;
518 } else {
519 top_idx = MB_MBAFF(h) ? 0 : 1;
520 }
521 }
522
523 if (h->deblocking_filter == 2) {
524 deblock_topleft = h->slice_table[h->mb_xy - 1 - h->mb_stride] == h->slice_num;
525 deblock_top = h->top_type;
526 } else {
527 deblock_topleft = (h->mb_x > 0);
528 deblock_top = (h->mb_y > !!MB_FIELD(h));
529 }
530
531 src_y -= linesize + 1 + pixel_shift;
532 src_cb -= uvlinesize + 1 + pixel_shift;
533 src_cr -= uvlinesize + 1 + pixel_shift;
534
535 top_border_m1 = h->top_borders[top_idx][h->mb_x - 1];
536 top_border = h->top_borders[top_idx][h->mb_x];
537
538#define XCHG(a, b, xchg) \
539 if (pixel_shift) { \
540 if (xchg) { \
541 AV_SWAP64(b + 0, a + 0); \
542 AV_SWAP64(b + 8, a + 8); \
543 } else { \
544 AV_COPY128(b, a); \
545 } \
546 } else if (xchg) \
547 AV_SWAP64(b, a); \
548 else \
549 AV_COPY64(b, a);
550
551 if (deblock_top) {
552 if (deblock_topleft) {
553 XCHG(top_border_m1 + (8 << pixel_shift),
554 src_y - (7 << pixel_shift), 1);
555 }
556 XCHG(top_border + (0 << pixel_shift), src_y + (1 << pixel_shift), xchg);
557 XCHG(top_border + (8 << pixel_shift), src_y + (9 << pixel_shift), 1);
558 if (h->mb_x + 1 < h->mb_width) {
559 XCHG(h->top_borders[top_idx][h->mb_x + 1],
560 src_y + (17 << pixel_shift), 1);
561 }
562 if (simple || !CONFIG_GRAY || !(h->flags & CODEC_FLAG_GRAY)) {
563 if (chroma444) {
564 if (deblock_topleft) {
565 XCHG(top_border_m1 + (24 << pixel_shift), src_cb - (7 << pixel_shift), 1);
566 XCHG(top_border_m1 + (40 << pixel_shift), src_cr - (7 << pixel_shift), 1);
567 }
568 XCHG(top_border + (16 << pixel_shift), src_cb + (1 << pixel_shift), xchg);
569 XCHG(top_border + (24 << pixel_shift), src_cb + (9 << pixel_shift), 1);
570 XCHG(top_border + (32 << pixel_shift), src_cr + (1 << pixel_shift), xchg);
571 XCHG(top_border + (40 << pixel_shift), src_cr + (9 << pixel_shift), 1);
572 if (h->mb_x + 1 < h->mb_width) {
573 XCHG(h->top_borders[top_idx][h->mb_x + 1] + (16 << pixel_shift), src_cb + (17 << pixel_shift), 1);
574 XCHG(h->top_borders[top_idx][h->mb_x + 1] + (32 << pixel_shift), src_cr + (17 << pixel_shift), 1);
575 }
576 } else {
577 if (deblock_topleft) {
578 XCHG(top_border_m1 + (16 << pixel_shift), src_cb - (7 << pixel_shift), 1);
579 XCHG(top_border_m1 + (24 << pixel_shift), src_cr - (7 << pixel_shift), 1);
580 }
581 XCHG(top_border + (16 << pixel_shift), src_cb + 1 + pixel_shift, 1);
582 XCHG(top_border + (24 << pixel_shift), src_cr + 1 + pixel_shift, 1);
583 }
584 }
585 }
586}
587
588static av_always_inline int dctcoef_get(int16_t *mb, int high_bit_depth,
589 int index)
590{
591 if (high_bit_depth) {
592 return AV_RN32A(((int32_t *)mb) + index);
593 } else
594 return AV_RN16A(mb + index);
595}
596
597static av_always_inline void dctcoef_set(int16_t *mb, int high_bit_depth,
598 int index, int value)
599{
600 if (high_bit_depth) {
601 AV_WN32A(((int32_t *)mb) + index, value);
602 } else
603 AV_WN16A(mb + index, value);
604}
605
606static av_always_inline void hl_decode_mb_predict_luma(H264Context *h,
607 int mb_type, int is_h264,
608 int simple,
609 int transform_bypass,
610 int pixel_shift,
611 int *block_offset,
612 int linesize,
613 uint8_t *dest_y, int p)
614{
615 void (*idct_add)(uint8_t *dst, int16_t *block, int stride);
616 void (*idct_dc_add)(uint8_t *dst, int16_t *block, int stride);
617 int i;
618 int qscale = p == 0 ? h->qscale : h->chroma_qp[p - 1];
619 block_offset += 16 * p;
620 if (IS_INTRA4x4(mb_type)) {
621 if (IS_8x8DCT(mb_type)) {
622 if (transform_bypass) {
623 idct_dc_add =
624 idct_add = h->h264dsp.h264_add_pixels8_clear;
625 } else {
626 idct_dc_add = h->h264dsp.h264_idct8_dc_add;
627 idct_add = h->h264dsp.h264_idct8_add;
628 }
629 for (i = 0; i < 16; i += 4) {
630 uint8_t *const ptr = dest_y + block_offset[i];
631 const int dir = h->intra4x4_pred_mode_cache[scan8[i]];
632 if (transform_bypass && h->sps.profile_idc == 244 && dir <= 1) {
633 if (h->x264_build != -1) {
634 h->hpc.pred8x8l_add[dir](ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize);
635 } else
636 h->hpc.pred8x8l_filter_add[dir](ptr, h->mb + (i * 16 + p * 256 << pixel_shift),
637 (h-> topleft_samples_available << i) & 0x8000,
638 (h->topright_samples_available << i) & 0x4000, linesize);
639 } else {
640 const int nnz = h->non_zero_count_cache[scan8[i + p * 16]];
641 h->hpc.pred8x8l[dir](ptr, (h->topleft_samples_available << i) & 0x8000,
642 (h->topright_samples_available << i) & 0x4000, linesize);
643 if (nnz) {
644 if (nnz == 1 && dctcoef_get(h->mb, pixel_shift, i * 16 + p * 256))
645 idct_dc_add(ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize);
646 else
647 idct_add(ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize);
648 }
649 }
650 }
651 } else {
652 if (transform_bypass) {
653 idct_dc_add =
654 idct_add = h->h264dsp.h264_add_pixels4_clear;
655 } else {
656 idct_dc_add = h->h264dsp.h264_idct_dc_add;
657 idct_add = h->h264dsp.h264_idct_add;
658 }
659 for (i = 0; i < 16; i++) {
660 uint8_t *const ptr = dest_y + block_offset[i];
661 const int dir = h->intra4x4_pred_mode_cache[scan8[i]];
662
663 if (transform_bypass && h->sps.profile_idc == 244 && dir <= 1) {
664 h->hpc.pred4x4_add[dir](ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize);
665 } else {
666 uint8_t *topright;
667 int nnz, tr;
668 uint64_t tr_high;
669 if (dir == DIAG_DOWN_LEFT_PRED || dir == VERT_LEFT_PRED) {
670 const int topright_avail = (h->topright_samples_available << i) & 0x8000;
671 av_assert2(h->mb_y || linesize <= block_offset[i]);
672 if (!topright_avail) {
673 if (pixel_shift) {
674 tr_high = ((uint16_t *)ptr)[3 - linesize / 2] * 0x0001000100010001ULL;
675 topright = (uint8_t *)&tr_high;
676 } else {
677 tr = ptr[3 - linesize] * 0x01010101u;
678 topright = (uint8_t *)&tr;
679 }
680 } else
681 topright = ptr + (4 << pixel_shift) - linesize;
682 } else
683 topright = NULL;
684
685 h->hpc.pred4x4[dir](ptr, topright, linesize);
686 nnz = h->non_zero_count_cache[scan8[i + p * 16]];
687 if (nnz) {
688 if (is_h264) {
689 if (nnz == 1 && dctcoef_get(h->mb, pixel_shift, i * 16 + p * 256))
690 idct_dc_add(ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize);
691 else
692 idct_add(ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize);
693 } else if (CONFIG_SVQ3_DECODER)
694 ff_svq3_add_idct_c(ptr, h->mb + i * 16 + p * 256, linesize, qscale, 0);
695 }
696 }
697 }
698 }
699 } else {
700 h->hpc.pred16x16[h->intra16x16_pred_mode](dest_y, linesize);
701 if (is_h264) {
702 if (h->non_zero_count_cache[scan8[LUMA_DC_BLOCK_INDEX + p]]) {
703 if (!transform_bypass)
704 h->h264dsp.h264_luma_dc_dequant_idct(h->mb + (p * 256 << pixel_shift),
705 h->mb_luma_dc[p],
706 h->dequant4_coeff[p][qscale][0]);
707 else {
708 static const uint8_t dc_mapping[16] = {
709 0 * 16, 1 * 16, 4 * 16, 5 * 16,
710 2 * 16, 3 * 16, 6 * 16, 7 * 16,
711 8 * 16, 9 * 16, 12 * 16, 13 * 16,
712 10 * 16, 11 * 16, 14 * 16, 15 * 16
713 };
714 for (i = 0; i < 16; i++)
715 dctcoef_set(h->mb + (p * 256 << pixel_shift),
716 pixel_shift, dc_mapping[i],
717 dctcoef_get(h->mb_luma_dc[p],
718 pixel_shift, i));
719 }
720 }
721 } else if (CONFIG_SVQ3_DECODER)
722 ff_svq3_luma_dc_dequant_idct_c(h->mb + p * 256,
723 h->mb_luma_dc[p], qscale);
724 }
725}
726
727static av_always_inline void hl_decode_mb_idct_luma(H264Context *h, int mb_type,
728 int is_h264, int simple,
729 int transform_bypass,
730 int pixel_shift,
731 int *block_offset,
732 int linesize,
733 uint8_t *dest_y, int p)
734{
735 void (*idct_add)(uint8_t *dst, int16_t *block, int stride);
736 int i;
737 block_offset += 16 * p;
738 if (!IS_INTRA4x4(mb_type)) {
739 if (is_h264) {
740 if (IS_INTRA16x16(mb_type)) {
741 if (transform_bypass) {
742 if (h->sps.profile_idc == 244 &&
743 (h->intra16x16_pred_mode == VERT_PRED8x8 ||
744 h->intra16x16_pred_mode == HOR_PRED8x8)) {
745 h->hpc.pred16x16_add[h->intra16x16_pred_mode](dest_y, block_offset,
746 h->mb + (p * 256 << pixel_shift),
747 linesize);
748 } else {
749 for (i = 0; i < 16; i++)
750 if (h->non_zero_count_cache[scan8[i + p * 16]] ||
751 dctcoef_get(h->mb, pixel_shift, i * 16 + p * 256))
752 h->h264dsp.h264_add_pixels4_clear(dest_y + block_offset[i],
753 h->mb + (i * 16 + p * 256 << pixel_shift),
754 linesize);
755 }
756 } else {
757 h->h264dsp.h264_idct_add16intra(dest_y, block_offset,
758 h->mb + (p * 256 << pixel_shift),
759 linesize,
760 h->non_zero_count_cache + p * 5 * 8);
761 }
762 } else if (h->cbp & 15) {
763 if (transform_bypass) {
764 const int di = IS_8x8DCT(mb_type) ? 4 : 1;
765 idct_add = IS_8x8DCT(mb_type) ? h->h264dsp.h264_add_pixels8_clear
766 : h->h264dsp.h264_add_pixels4_clear;
767 for (i = 0; i < 16; i += di)
768 if (h->non_zero_count_cache[scan8[i + p * 16]])
769 idct_add(dest_y + block_offset[i],
770 h->mb + (i * 16 + p * 256 << pixel_shift),
771 linesize);
772 } else {
773 if (IS_8x8DCT(mb_type))
774 h->h264dsp.h264_idct8_add4(dest_y, block_offset,
775 h->mb + (p * 256 << pixel_shift),
776 linesize,
777 h->non_zero_count_cache + p * 5 * 8);
778 else
779 h->h264dsp.h264_idct_add16(dest_y, block_offset,
780 h->mb + (p * 256 << pixel_shift),
781 linesize,
782 h->non_zero_count_cache + p * 5 * 8);
783 }
784 }
785 } else if (CONFIG_SVQ3_DECODER) {
786 for (i = 0; i < 16; i++)
787 if (h->non_zero_count_cache[scan8[i + p * 16]] || h->mb[i * 16 + p * 256]) {
788 // FIXME benchmark weird rule, & below
789 uint8_t *const ptr = dest_y + block_offset[i];
790 ff_svq3_add_idct_c(ptr, h->mb + i * 16 + p * 256, linesize,
791 h->qscale, IS_INTRA(mb_type) ? 1 : 0);
792 }
793 }
794 }
795}
796
797#define BITS 8
798#define SIMPLE 1
799#include "h264_mb_template.c"
800
801#undef BITS
802#define BITS 16
803#include "h264_mb_template.c"
804
805#undef SIMPLE
806#define SIMPLE 0
807#include "h264_mb_template.c"
808
809void ff_h264_hl_decode_mb(H264Context *h)
810{
811 const int mb_xy = h->mb_xy;
812 const int mb_type = h->cur_pic.mb_type[mb_xy];
813 int is_complex = CONFIG_SMALL || h->is_complex ||
814 IS_INTRA_PCM(mb_type) || h->qscale == 0;
815
816 if (CHROMA444(h)) {
817 if (is_complex || h->pixel_shift)
818 hl_decode_mb_444_complex(h);
819 else
820 hl_decode_mb_444_simple_8(h);
821 } else if (is_complex) {
822 hl_decode_mb_complex(h);
823 } else if (h->pixel_shift) {
824 hl_decode_mb_simple_16(h);
825 } else
826 hl_decode_mb_simple_8(h);
827}
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