4410f59cb09c378ba7346cfb385badca91d29fdf
[libav.git] / libavcodec / h264.c
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 Libav.
6 *
7 * Libav 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 * Libav 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 Libav; 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 codec.
25 * @author Michael Niedermayer <michaelni@gmx.at>
26 */
27
28 #include "libavutil/imgutils.h"
29 #include "internal.h"
30 #include "cabac.h"
31 #include "cabac_functions.h"
32 #include "dsputil.h"
33 #include "avcodec.h"
34 #include "mpegvideo.h"
35 #include "h264.h"
36 #include "h264data.h"
37 #include "h264chroma.h"
38 #include "h264_mvpred.h"
39 #include "golomb.h"
40 #include "mathops.h"
41 #include "rectangle.h"
42 #include "svq3.h"
43 #include "thread.h"
44 #include "vdpau_internal.h"
45 #include "libavutil/avassert.h"
46
47 // #undef NDEBUG
48 #include <assert.h>
49
50 const uint16_t ff_h264_mb_sizes[4] = { 256, 384, 512, 768 };
51
52 static const uint8_t rem6[QP_MAX_NUM + 1] = {
53 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2,
54 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5,
55 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3,
56 };
57
58 static const uint8_t div6[QP_MAX_NUM + 1] = {
59 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3,
60 3, 3, 3, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6,
61 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10,
62 };
63
64 static const enum AVPixelFormat hwaccel_pixfmt_list_h264_jpeg_420[] = {
65 #if CONFIG_H264_DXVA2_HWACCEL
66 AV_PIX_FMT_DXVA2_VLD,
67 #endif
68 #if CONFIG_H264_VAAPI_HWACCEL
69 AV_PIX_FMT_VAAPI_VLD,
70 #endif
71 #if CONFIG_H264_VDA_HWACCEL
72 AV_PIX_FMT_VDA_VLD,
73 #endif
74 #if CONFIG_H264_VDPAU_HWACCEL
75 AV_PIX_FMT_VDPAU,
76 #endif
77 AV_PIX_FMT_YUVJ420P,
78 AV_PIX_FMT_NONE
79 };
80
81 static void h264_er_decode_mb(void *opaque, int ref, int mv_dir, int mv_type,
82 int (*mv)[2][4][2],
83 int mb_x, int mb_y, int mb_intra, int mb_skipped)
84 {
85 H264Context *h = opaque;
86 MpegEncContext *s = &h->s;
87
88 s->mb_x = mb_x;
89 s->mb_y = mb_y;
90 h->mb_xy = s->mb_x + s->mb_y * s->mb_stride;
91 memset(h->non_zero_count_cache, 0, sizeof(h->non_zero_count_cache));
92 assert(ref >= 0);
93 /* FIXME: It is possible albeit uncommon that slice references
94 * differ between slices. We take the easy approach and ignore
95 * it for now. If this turns out to have any relevance in
96 * practice then correct remapping should be added. */
97 if (ref >= h->ref_count[0])
98 ref = 0;
99 fill_rectangle(&s->current_picture.f.ref_index[0][4 * h->mb_xy],
100 2, 2, 2, ref, 1);
101 fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, ref, 1);
102 fill_rectangle(h->mv_cache[0][scan8[0]], 4, 4, 8,
103 pack16to32(s->mv[0][0][0], s->mv[0][0][1]), 4);
104 assert(!FRAME_MBAFF);
105 ff_h264_hl_decode_mb(h);
106 }
107
108 /**
109 * Check if the top & left blocks are available if needed and
110 * change the dc mode so it only uses the available blocks.
111 */
112 int ff_h264_check_intra4x4_pred_mode(H264Context *h)
113 {
114 MpegEncContext *const s = &h->s;
115 static const int8_t top[12] = {
116 -1, 0, LEFT_DC_PRED, -1, -1, -1, -1, -1, 0
117 };
118 static const int8_t left[12] = {
119 0, -1, TOP_DC_PRED, 0, -1, -1, -1, 0, -1, DC_128_PRED
120 };
121 int i;
122
123 if (!(h->top_samples_available & 0x8000)) {
124 for (i = 0; i < 4; i++) {
125 int status = top[h->intra4x4_pred_mode_cache[scan8[0] + i]];
126 if (status < 0) {
127 av_log(h->s.avctx, AV_LOG_ERROR,
128 "top block unavailable for requested intra4x4 mode %d at %d %d\n",
129 status, s->mb_x, s->mb_y);
130 return -1;
131 } else if (status) {
132 h->intra4x4_pred_mode_cache[scan8[0] + i] = status;
133 }
134 }
135 }
136
137 if ((h->left_samples_available & 0x8888) != 0x8888) {
138 static const int mask[4] = { 0x8000, 0x2000, 0x80, 0x20 };
139 for (i = 0; i < 4; i++)
140 if (!(h->left_samples_available & mask[i])) {
141 int status = left[h->intra4x4_pred_mode_cache[scan8[0] + 8 * i]];
142 if (status < 0) {
143 av_log(h->s.avctx, AV_LOG_ERROR,
144 "left block unavailable for requested intra4x4 mode %d at %d %d\n",
145 status, s->mb_x, s->mb_y);
146 return -1;
147 } else if (status) {
148 h->intra4x4_pred_mode_cache[scan8[0] + 8 * i] = status;
149 }
150 }
151 }
152
153 return 0;
154 } // FIXME cleanup like ff_h264_check_intra_pred_mode
155
156 /**
157 * Check if the top & left blocks are available if needed and
158 * change the dc mode so it only uses the available blocks.
159 */
160 int ff_h264_check_intra_pred_mode(H264Context *h, int mode, int is_chroma)
161 {
162 MpegEncContext *const s = &h->s;
163 static const int8_t top[7] = { LEFT_DC_PRED8x8, 1, -1, -1 };
164 static const int8_t left[7] = { TOP_DC_PRED8x8, -1, 2, -1, DC_128_PRED8x8 };
165
166 if (mode > 6U) {
167 av_log(h->s.avctx, AV_LOG_ERROR,
168 "out of range intra chroma pred mode at %d %d\n",
169 s->mb_x, s->mb_y);
170 return -1;
171 }
172
173 if (!(h->top_samples_available & 0x8000)) {
174 mode = top[mode];
175 if (mode < 0) {
176 av_log(h->s.avctx, AV_LOG_ERROR,
177 "top block unavailable for requested intra mode at %d %d\n",
178 s->mb_x, s->mb_y);
179 return -1;
180 }
181 }
182
183 if ((h->left_samples_available & 0x8080) != 0x8080) {
184 mode = left[mode];
185 if (is_chroma && (h->left_samples_available & 0x8080)) {
186 // mad cow disease mode, aka MBAFF + constrained_intra_pred
187 mode = ALZHEIMER_DC_L0T_PRED8x8 +
188 (!(h->left_samples_available & 0x8000)) +
189 2 * (mode == DC_128_PRED8x8);
190 }
191 if (mode < 0) {
192 av_log(h->s.avctx, AV_LOG_ERROR,
193 "left block unavailable for requested intra mode at %d %d\n",
194 s->mb_x, s->mb_y);
195 return -1;
196 }
197 }
198
199 return mode;
200 }
201
202 const uint8_t *ff_h264_decode_nal(H264Context *h, const uint8_t *src,
203 int *dst_length, int *consumed, int length)
204 {
205 int i, si, di;
206 uint8_t *dst;
207 int bufidx;
208
209 // src[0]&0x80; // forbidden bit
210 h->nal_ref_idc = src[0] >> 5;
211 h->nal_unit_type = src[0] & 0x1F;
212
213 src++;
214 length--;
215
216 #define STARTCODE_TEST \
217 if (i + 2 < length && src[i + 1] == 0 && src[i + 2] <= 3) { \
218 if (src[i + 2] != 3) { \
219 /* startcode, so we must be past the end */ \
220 length = i; \
221 } \
222 break; \
223 }
224 #if HAVE_FAST_UNALIGNED
225 #define FIND_FIRST_ZERO \
226 if (i > 0 && !src[i]) \
227 i--; \
228 while (src[i]) \
229 i++
230 #if HAVE_FAST_64BIT
231 for (i = 0; i + 1 < length; i += 9) {
232 if (!((~AV_RN64A(src + i) &
233 (AV_RN64A(src + i) - 0x0100010001000101ULL)) &
234 0x8000800080008080ULL))
235 continue;
236 FIND_FIRST_ZERO;
237 STARTCODE_TEST;
238 i -= 7;
239 }
240 #else
241 for (i = 0; i + 1 < length; i += 5) {
242 if (!((~AV_RN32A(src + i) &
243 (AV_RN32A(src + i) - 0x01000101U)) &
244 0x80008080U))
245 continue;
246 FIND_FIRST_ZERO;
247 STARTCODE_TEST;
248 i -= 3;
249 }
250 #endif
251 #else
252 for (i = 0; i + 1 < length; i += 2) {
253 if (src[i])
254 continue;
255 if (i > 0 && src[i - 1] == 0)
256 i--;
257 STARTCODE_TEST;
258 }
259 #endif
260
261 if (i >= length - 1) { // no escaped 0
262 *dst_length = length;
263 *consumed = length + 1; // +1 for the header
264 return src;
265 }
266
267 // use second escape buffer for inter data
268 bufidx = h->nal_unit_type == NAL_DPC ? 1 : 0;
269 av_fast_malloc(&h->rbsp_buffer[bufidx], &h->rbsp_buffer_size[bufidx],
270 length + FF_INPUT_BUFFER_PADDING_SIZE);
271 dst = h->rbsp_buffer[bufidx];
272
273 if (dst == NULL)
274 return NULL;
275
276 memcpy(dst, src, i);
277 si = di = i;
278 while (si + 2 < length) {
279 // remove escapes (very rare 1:2^22)
280 if (src[si + 2] > 3) {
281 dst[di++] = src[si++];
282 dst[di++] = src[si++];
283 } else if (src[si] == 0 && src[si + 1] == 0) {
284 if (src[si + 2] == 3) { // escape
285 dst[di++] = 0;
286 dst[di++] = 0;
287 si += 3;
288 continue;
289 } else // next start code
290 goto nsc;
291 }
292
293 dst[di++] = src[si++];
294 }
295 while (si < length)
296 dst[di++] = src[si++];
297 nsc:
298
299 memset(dst + di, 0, FF_INPUT_BUFFER_PADDING_SIZE);
300
301 *dst_length = di;
302 *consumed = si + 1; // +1 for the header
303 /* FIXME store exact number of bits in the getbitcontext
304 * (it is needed for decoding) */
305 return dst;
306 }
307
308 /**
309 * Identify the exact end of the bitstream
310 * @return the length of the trailing, or 0 if damaged
311 */
312 static int decode_rbsp_trailing(H264Context *h, const uint8_t *src)
313 {
314 int v = *src;
315 int r;
316
317 tprintf(h->s.avctx, "rbsp trailing %X\n", v);
318
319 for (r = 1; r < 9; r++) {
320 if (v & 1)
321 return r;
322 v >>= 1;
323 }
324 return 0;
325 }
326
327 static inline int get_lowest_part_list_y(H264Context *h, Picture *pic, int n,
328 int height, int y_offset, int list)
329 {
330 int raw_my = h->mv_cache[list][scan8[n]][1];
331 int filter_height_up = (raw_my & 3) ? 2 : 0;
332 int filter_height_down = (raw_my & 3) ? 3 : 0;
333 int full_my = (raw_my >> 2) + y_offset;
334 int top = full_my - filter_height_up;
335 int bottom = full_my + filter_height_down + height;
336
337 return FFMAX(abs(top), bottom);
338 }
339
340 static inline void get_lowest_part_y(H264Context *h, int refs[2][48], int n,
341 int height, int y_offset, int list0,
342 int list1, int *nrefs)
343 {
344 MpegEncContext *const s = &h->s;
345 int my;
346
347 y_offset += 16 * (s->mb_y >> MB_FIELD);
348
349 if (list0) {
350 int ref_n = h->ref_cache[0][scan8[n]];
351 Picture *ref = &h->ref_list[0][ref_n];
352
353 // Error resilience puts the current picture in the ref list.
354 // Don't try to wait on these as it will cause a deadlock.
355 // Fields can wait on each other, though.
356 if (ref->f.thread_opaque != s->current_picture.f.thread_opaque ||
357 (ref->f.reference & 3) != s->picture_structure) {
358 my = get_lowest_part_list_y(h, ref, n, height, y_offset, 0);
359 if (refs[0][ref_n] < 0)
360 nrefs[0] += 1;
361 refs[0][ref_n] = FFMAX(refs[0][ref_n], my);
362 }
363 }
364
365 if (list1) {
366 int ref_n = h->ref_cache[1][scan8[n]];
367 Picture *ref = &h->ref_list[1][ref_n];
368
369 if (ref->f.thread_opaque != s->current_picture.f.thread_opaque ||
370 (ref->f.reference & 3) != s->picture_structure) {
371 my = get_lowest_part_list_y(h, ref, n, height, y_offset, 1);
372 if (refs[1][ref_n] < 0)
373 nrefs[1] += 1;
374 refs[1][ref_n] = FFMAX(refs[1][ref_n], my);
375 }
376 }
377 }
378
379 /**
380 * Wait until all reference frames are available for MC operations.
381 *
382 * @param h the H264 context
383 */
384 static void await_references(H264Context *h)
385 {
386 MpegEncContext *const s = &h->s;
387 const int mb_xy = h->mb_xy;
388 const int mb_type = s->current_picture.f.mb_type[mb_xy];
389 int refs[2][48];
390 int nrefs[2] = { 0 };
391 int ref, list;
392
393 memset(refs, -1, sizeof(refs));
394
395 if (IS_16X16(mb_type)) {
396 get_lowest_part_y(h, refs, 0, 16, 0,
397 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);
398 } else if (IS_16X8(mb_type)) {
399 get_lowest_part_y(h, refs, 0, 8, 0,
400 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);
401 get_lowest_part_y(h, refs, 8, 8, 8,
402 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1), nrefs);
403 } else if (IS_8X16(mb_type)) {
404 get_lowest_part_y(h, refs, 0, 16, 0,
405 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);
406 get_lowest_part_y(h, refs, 4, 16, 0,
407 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1), nrefs);
408 } else {
409 int i;
410
411 assert(IS_8X8(mb_type));
412
413 for (i = 0; i < 4; i++) {
414 const int sub_mb_type = h->sub_mb_type[i];
415 const int n = 4 * i;
416 int y_offset = (i & 2) << 2;
417
418 if (IS_SUB_8X8(sub_mb_type)) {
419 get_lowest_part_y(h, refs, n, 8, y_offset,
420 IS_DIR(sub_mb_type, 0, 0),
421 IS_DIR(sub_mb_type, 0, 1),
422 nrefs);
423 } else if (IS_SUB_8X4(sub_mb_type)) {
424 get_lowest_part_y(h, refs, n, 4, y_offset,
425 IS_DIR(sub_mb_type, 0, 0),
426 IS_DIR(sub_mb_type, 0, 1),
427 nrefs);
428 get_lowest_part_y(h, refs, n + 2, 4, y_offset + 4,
429 IS_DIR(sub_mb_type, 0, 0),
430 IS_DIR(sub_mb_type, 0, 1),
431 nrefs);
432 } else if (IS_SUB_4X8(sub_mb_type)) {
433 get_lowest_part_y(h, refs, n, 8, y_offset,
434 IS_DIR(sub_mb_type, 0, 0),
435 IS_DIR(sub_mb_type, 0, 1),
436 nrefs);
437 get_lowest_part_y(h, refs, n + 1, 8, y_offset,
438 IS_DIR(sub_mb_type, 0, 0),
439 IS_DIR(sub_mb_type, 0, 1),
440 nrefs);
441 } else {
442 int j;
443 assert(IS_SUB_4X4(sub_mb_type));
444 for (j = 0; j < 4; j++) {
445 int sub_y_offset = y_offset + 2 * (j & 2);
446 get_lowest_part_y(h, refs, n + j, 4, sub_y_offset,
447 IS_DIR(sub_mb_type, 0, 0),
448 IS_DIR(sub_mb_type, 0, 1),
449 nrefs);
450 }
451 }
452 }
453 }
454
455 for (list = h->list_count - 1; list >= 0; list--)
456 for (ref = 0; ref < 48 && nrefs[list]; ref++) {
457 int row = refs[list][ref];
458 if (row >= 0) {
459 Picture *ref_pic = &h->ref_list[list][ref];
460 int ref_field = ref_pic->f.reference - 1;
461 int ref_field_picture = ref_pic->field_picture;
462 int pic_height = 16 * s->mb_height >> ref_field_picture;
463
464 row <<= MB_MBAFF;
465 nrefs[list]--;
466
467 if (!FIELD_PICTURE && ref_field_picture) { // frame referencing two fields
468 ff_thread_await_progress(&ref_pic->f,
469 FFMIN((row >> 1) - !(row & 1),
470 pic_height - 1),
471 1);
472 ff_thread_await_progress(&ref_pic->f,
473 FFMIN((row >> 1), pic_height - 1),
474 0);
475 } else if (FIELD_PICTURE && !ref_field_picture) { // field referencing one field of a frame
476 ff_thread_await_progress(&ref_pic->f,
477 FFMIN(row * 2 + ref_field,
478 pic_height - 1),
479 0);
480 } else if (FIELD_PICTURE) {
481 ff_thread_await_progress(&ref_pic->f,
482 FFMIN(row, pic_height - 1),
483 ref_field);
484 } else {
485 ff_thread_await_progress(&ref_pic->f,
486 FFMIN(row, pic_height - 1),
487 0);
488 }
489 }
490 }
491 }
492
493 static av_always_inline void mc_dir_part(H264Context *h, Picture *pic,
494 int n, int square, int height,
495 int delta, int list,
496 uint8_t *dest_y, uint8_t *dest_cb,
497 uint8_t *dest_cr,
498 int src_x_offset, int src_y_offset,
499 qpel_mc_func *qpix_op,
500 h264_chroma_mc_func chroma_op,
501 int pixel_shift, int chroma_idc)
502 {
503 MpegEncContext *const s = &h->s;
504 const int mx = h->mv_cache[list][scan8[n]][0] + src_x_offset * 8;
505 int my = h->mv_cache[list][scan8[n]][1] + src_y_offset * 8;
506 const int luma_xy = (mx & 3) + ((my & 3) << 2);
507 int offset = ((mx >> 2) << pixel_shift) + (my >> 2) * h->mb_linesize;
508 uint8_t *src_y = pic->f.data[0] + offset;
509 uint8_t *src_cb, *src_cr;
510 int extra_width = h->emu_edge_width;
511 int extra_height = h->emu_edge_height;
512 int emu = 0;
513 const int full_mx = mx >> 2;
514 const int full_my = my >> 2;
515 const int pic_width = 16 * s->mb_width;
516 const int pic_height = 16 * s->mb_height >> MB_FIELD;
517 int ysh;
518
519 if (mx & 7)
520 extra_width -= 3;
521 if (my & 7)
522 extra_height -= 3;
523
524 if (full_mx < 0 - extra_width ||
525 full_my < 0 - extra_height ||
526 full_mx + 16 /*FIXME*/ > pic_width + extra_width ||
527 full_my + 16 /*FIXME*/ > pic_height + extra_height) {
528 s->vdsp.emulated_edge_mc(s->edge_emu_buffer,
529 src_y - (2 << pixel_shift) - 2 * h->mb_linesize,
530 h->mb_linesize,
531 16 + 5, 16 + 5 /*FIXME*/, full_mx - 2,
532 full_my - 2, pic_width, pic_height);
533 src_y = s->edge_emu_buffer + (2 << pixel_shift) + 2 * h->mb_linesize;
534 emu = 1;
535 }
536
537 qpix_op[luma_xy](dest_y, src_y, h->mb_linesize); // FIXME try variable height perhaps?
538 if (!square)
539 qpix_op[luma_xy](dest_y + delta, src_y + delta, h->mb_linesize);
540
541 if (CONFIG_GRAY && s->flags & CODEC_FLAG_GRAY)
542 return;
543
544 if (chroma_idc == 3 /* yuv444 */) {
545 src_cb = pic->f.data[1] + offset;
546 if (emu) {
547 s->vdsp.emulated_edge_mc(s->edge_emu_buffer,
548 src_cb - (2 << pixel_shift) - 2 * h->mb_linesize,
549 h->mb_linesize,
550 16 + 5, 16 + 5 /*FIXME*/,
551 full_mx - 2, full_my - 2,
552 pic_width, pic_height);
553 src_cb = s->edge_emu_buffer + (2 << pixel_shift) + 2 * h->mb_linesize;
554 }
555 qpix_op[luma_xy](dest_cb, src_cb, h->mb_linesize); // FIXME try variable height perhaps?
556 if (!square)
557 qpix_op[luma_xy](dest_cb + delta, src_cb + delta, h->mb_linesize);
558
559 src_cr = pic->f.data[2] + offset;
560 if (emu) {
561 s->vdsp.emulated_edge_mc(s->edge_emu_buffer,
562 src_cr - (2 << pixel_shift) - 2 * h->mb_linesize,
563 h->mb_linesize,
564 16 + 5, 16 + 5 /*FIXME*/,
565 full_mx - 2, full_my - 2,
566 pic_width, pic_height);
567 src_cr = s->edge_emu_buffer + (2 << pixel_shift) + 2 * h->mb_linesize;
568 }
569 qpix_op[luma_xy](dest_cr, src_cr, h->mb_linesize); // FIXME try variable height perhaps?
570 if (!square)
571 qpix_op[luma_xy](dest_cr + delta, src_cr + delta, h->mb_linesize);
572 return;
573 }
574
575 ysh = 3 - (chroma_idc == 2 /* yuv422 */);
576 if (chroma_idc == 1 /* yuv420 */ && MB_FIELD) {
577 // chroma offset when predicting from a field of opposite parity
578 my += 2 * ((s->mb_y & 1) - (pic->f.reference - 1));
579 emu |= (my >> 3) < 0 || (my >> 3) + 8 >= (pic_height >> 1);
580 }
581
582 src_cb = pic->f.data[1] + ((mx >> 3) << pixel_shift) +
583 (my >> ysh) * h->mb_uvlinesize;
584 src_cr = pic->f.data[2] + ((mx >> 3) << pixel_shift) +
585 (my >> ysh) * h->mb_uvlinesize;
586
587 if (emu) {
588 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, src_cb, h->mb_uvlinesize,
589 9, 8 * chroma_idc + 1, (mx >> 3), (my >> ysh),
590 pic_width >> 1, pic_height >> (chroma_idc == 1 /* yuv420 */));
591 src_cb = s->edge_emu_buffer;
592 }
593 chroma_op(dest_cb, src_cb, h->mb_uvlinesize,
594 height >> (chroma_idc == 1 /* yuv420 */),
595 mx & 7, (my << (chroma_idc == 2 /* yuv422 */)) & 7);
596
597 if (emu) {
598 s->vdsp.emulated_edge_mc(s->edge_emu_buffer, src_cr, h->mb_uvlinesize,
599 9, 8 * chroma_idc + 1, (mx >> 3), (my >> ysh),
600 pic_width >> 1, pic_height >> (chroma_idc == 1 /* yuv420 */));
601 src_cr = s->edge_emu_buffer;
602 }
603 chroma_op(dest_cr, src_cr, h->mb_uvlinesize, height >> (chroma_idc == 1 /* yuv420 */),
604 mx & 7, (my << (chroma_idc == 2 /* yuv422 */)) & 7);
605 }
606
607 static av_always_inline void mc_part_std(H264Context *h, int n, int square,
608 int height, int delta,
609 uint8_t *dest_y, uint8_t *dest_cb,
610 uint8_t *dest_cr,
611 int x_offset, int y_offset,
612 qpel_mc_func *qpix_put,
613 h264_chroma_mc_func chroma_put,
614 qpel_mc_func *qpix_avg,
615 h264_chroma_mc_func chroma_avg,
616 int list0, int list1,
617 int pixel_shift, int chroma_idc)
618 {
619 MpegEncContext *const s = &h->s;
620 qpel_mc_func *qpix_op = qpix_put;
621 h264_chroma_mc_func chroma_op = chroma_put;
622
623 dest_y += (2 * x_offset << pixel_shift) + 2 * y_offset * h->mb_linesize;
624 if (chroma_idc == 3 /* yuv444 */) {
625 dest_cb += (2 * x_offset << pixel_shift) + 2 * y_offset * h->mb_linesize;
626 dest_cr += (2 * x_offset << pixel_shift) + 2 * y_offset * h->mb_linesize;
627 } else if (chroma_idc == 2 /* yuv422 */) {
628 dest_cb += (x_offset << pixel_shift) + 2 * y_offset * h->mb_uvlinesize;
629 dest_cr += (x_offset << pixel_shift) + 2 * y_offset * h->mb_uvlinesize;
630 } else { /* yuv420 */
631 dest_cb += (x_offset << pixel_shift) + y_offset * h->mb_uvlinesize;
632 dest_cr += (x_offset << pixel_shift) + y_offset * h->mb_uvlinesize;
633 }
634 x_offset += 8 * s->mb_x;
635 y_offset += 8 * (s->mb_y >> MB_FIELD);
636
637 if (list0) {
638 Picture *ref = &h->ref_list[0][h->ref_cache[0][scan8[n]]];
639 mc_dir_part(h, ref, n, square, height, delta, 0,
640 dest_y, dest_cb, dest_cr, x_offset, y_offset,
641 qpix_op, chroma_op, pixel_shift, chroma_idc);
642
643 qpix_op = qpix_avg;
644 chroma_op = chroma_avg;
645 }
646
647 if (list1) {
648 Picture *ref = &h->ref_list[1][h->ref_cache[1][scan8[n]]];
649 mc_dir_part(h, ref, n, square, height, delta, 1,
650 dest_y, dest_cb, dest_cr, x_offset, y_offset,
651 qpix_op, chroma_op, pixel_shift, chroma_idc);
652 }
653 }
654
655 static av_always_inline void mc_part_weighted(H264Context *h, int n, int square,
656 int height, int delta,
657 uint8_t *dest_y, uint8_t *dest_cb,
658 uint8_t *dest_cr,
659 int x_offset, int y_offset,
660 qpel_mc_func *qpix_put,
661 h264_chroma_mc_func chroma_put,
662 h264_weight_func luma_weight_op,
663 h264_weight_func chroma_weight_op,
664 h264_biweight_func luma_weight_avg,
665 h264_biweight_func chroma_weight_avg,
666 int list0, int list1,
667 int pixel_shift, int chroma_idc)
668 {
669 MpegEncContext *const s = &h->s;
670 int chroma_height;
671
672 dest_y += (2 * x_offset << pixel_shift) + 2 * y_offset * h->mb_linesize;
673 if (chroma_idc == 3 /* yuv444 */) {
674 chroma_height = height;
675 chroma_weight_avg = luma_weight_avg;
676 chroma_weight_op = luma_weight_op;
677 dest_cb += (2 * x_offset << pixel_shift) + 2 * y_offset * h->mb_linesize;
678 dest_cr += (2 * x_offset << pixel_shift) + 2 * y_offset * h->mb_linesize;
679 } else if (chroma_idc == 2 /* yuv422 */) {
680 chroma_height = height;
681 dest_cb += (x_offset << pixel_shift) + 2 * y_offset * h->mb_uvlinesize;
682 dest_cr += (x_offset << pixel_shift) + 2 * y_offset * h->mb_uvlinesize;
683 } else { /* yuv420 */
684 chroma_height = height >> 1;
685 dest_cb += (x_offset << pixel_shift) + y_offset * h->mb_uvlinesize;
686 dest_cr += (x_offset << pixel_shift) + y_offset * h->mb_uvlinesize;
687 }
688 x_offset += 8 * s->mb_x;
689 y_offset += 8 * (s->mb_y >> MB_FIELD);
690
691 if (list0 && list1) {
692 /* don't optimize for luma-only case, since B-frames usually
693 * use implicit weights => chroma too. */
694 uint8_t *tmp_cb = h->bipred_scratchpad;
695 uint8_t *tmp_cr = h->bipred_scratchpad + (16 << pixel_shift);
696 uint8_t *tmp_y = h->bipred_scratchpad + 16 * h->mb_uvlinesize;
697 int refn0 = h->ref_cache[0][scan8[n]];
698 int refn1 = h->ref_cache[1][scan8[n]];
699
700 mc_dir_part(h, &h->ref_list[0][refn0], n, square, height, delta, 0,
701 dest_y, dest_cb, dest_cr,
702 x_offset, y_offset, qpix_put, chroma_put,
703 pixel_shift, chroma_idc);
704 mc_dir_part(h, &h->ref_list[1][refn1], n, square, height, delta, 1,
705 tmp_y, tmp_cb, tmp_cr,
706 x_offset, y_offset, qpix_put, chroma_put,
707 pixel_shift, chroma_idc);
708
709 if (h->use_weight == 2) {
710 int weight0 = h->implicit_weight[refn0][refn1][s->mb_y & 1];
711 int weight1 = 64 - weight0;
712 luma_weight_avg(dest_y, tmp_y, h->mb_linesize,
713 height, 5, weight0, weight1, 0);
714 chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize,
715 chroma_height, 5, weight0, weight1, 0);
716 chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize,
717 chroma_height, 5, weight0, weight1, 0);
718 } else {
719 luma_weight_avg(dest_y, tmp_y, h->mb_linesize, height,
720 h->luma_log2_weight_denom,
721 h->luma_weight[refn0][0][0],
722 h->luma_weight[refn1][1][0],
723 h->luma_weight[refn0][0][1] +
724 h->luma_weight[refn1][1][1]);
725 chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize, chroma_height,
726 h->chroma_log2_weight_denom,
727 h->chroma_weight[refn0][0][0][0],
728 h->chroma_weight[refn1][1][0][0],
729 h->chroma_weight[refn0][0][0][1] +
730 h->chroma_weight[refn1][1][0][1]);
731 chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize, chroma_height,
732 h->chroma_log2_weight_denom,
733 h->chroma_weight[refn0][0][1][0],
734 h->chroma_weight[refn1][1][1][0],
735 h->chroma_weight[refn0][0][1][1] +
736 h->chroma_weight[refn1][1][1][1]);
737 }
738 } else {
739 int list = list1 ? 1 : 0;
740 int refn = h->ref_cache[list][scan8[n]];
741 Picture *ref = &h->ref_list[list][refn];
742 mc_dir_part(h, ref, n, square, height, delta, list,
743 dest_y, dest_cb, dest_cr, x_offset, y_offset,
744 qpix_put, chroma_put, pixel_shift, chroma_idc);
745
746 luma_weight_op(dest_y, h->mb_linesize, height,
747 h->luma_log2_weight_denom,
748 h->luma_weight[refn][list][0],
749 h->luma_weight[refn][list][1]);
750 if (h->use_weight_chroma) {
751 chroma_weight_op(dest_cb, h->mb_uvlinesize, chroma_height,
752 h->chroma_log2_weight_denom,
753 h->chroma_weight[refn][list][0][0],
754 h->chroma_weight[refn][list][0][1]);
755 chroma_weight_op(dest_cr, h->mb_uvlinesize, chroma_height,
756 h->chroma_log2_weight_denom,
757 h->chroma_weight[refn][list][1][0],
758 h->chroma_weight[refn][list][1][1]);
759 }
760 }
761 }
762
763 static av_always_inline void prefetch_motion(H264Context *h, int list,
764 int pixel_shift, int chroma_idc)
765 {
766 /* fetch pixels for estimated mv 4 macroblocks ahead
767 * optimized for 64byte cache lines */
768 MpegEncContext *const s = &h->s;
769 const int refn = h->ref_cache[list][scan8[0]];
770 if (refn >= 0) {
771 const int mx = (h->mv_cache[list][scan8[0]][0] >> 2) + 16 * s->mb_x + 8;
772 const int my = (h->mv_cache[list][scan8[0]][1] >> 2) + 16 * s->mb_y;
773 uint8_t **src = h->ref_list[list][refn].f.data;
774 int off = (mx << pixel_shift) +
775 (my + (s->mb_x & 3) * 4) * h->mb_linesize +
776 (64 << pixel_shift);
777 s->vdsp.prefetch(src[0] + off, s->linesize, 4);
778 if (chroma_idc == 3 /* yuv444 */) {
779 s->vdsp.prefetch(src[1] + off, s->linesize, 4);
780 s->vdsp.prefetch(src[2] + off, s->linesize, 4);
781 } else {
782 off = ((mx >> 1) << pixel_shift) +
783 ((my >> 1) + (s->mb_x & 7)) * s->uvlinesize +
784 (64 << pixel_shift);
785 s->vdsp.prefetch(src[1] + off, src[2] - src[1], 2);
786 }
787 }
788 }
789
790 static void free_tables(H264Context *h, int free_rbsp)
791 {
792 int i;
793 H264Context *hx;
794
795 av_freep(&h->intra4x4_pred_mode);
796 av_freep(&h->chroma_pred_mode_table);
797 av_freep(&h->cbp_table);
798 av_freep(&h->mvd_table[0]);
799 av_freep(&h->mvd_table[1]);
800 av_freep(&h->direct_table);
801 av_freep(&h->non_zero_count);
802 av_freep(&h->slice_table_base);
803 h->slice_table = NULL;
804 av_freep(&h->list_counts);
805
806 av_freep(&h->mb2b_xy);
807 av_freep(&h->mb2br_xy);
808
809 for (i = 0; i < MAX_THREADS; i++) {
810 hx = h->thread_context[i];
811 if (!hx)
812 continue;
813 av_freep(&hx->top_borders[1]);
814 av_freep(&hx->top_borders[0]);
815 av_freep(&hx->bipred_scratchpad);
816 if (free_rbsp) {
817 av_freep(&hx->rbsp_buffer[1]);
818 av_freep(&hx->rbsp_buffer[0]);
819 hx->rbsp_buffer_size[0] = 0;
820 hx->rbsp_buffer_size[1] = 0;
821 }
822 if (i)
823 av_freep(&h->thread_context[i]);
824 }
825 }
826
827 static void init_dequant8_coeff_table(H264Context *h)
828 {
829 int i, j, q, x;
830 const int max_qp = 51 + 6 * (h->sps.bit_depth_luma - 8);
831
832 for (i = 0; i < 6; i++) {
833 h->dequant8_coeff[i] = h->dequant8_buffer[i];
834 for (j = 0; j < i; j++)
835 if (!memcmp(h->pps.scaling_matrix8[j], h->pps.scaling_matrix8[i],
836 64 * sizeof(uint8_t))) {
837 h->dequant8_coeff[i] = h->dequant8_buffer[j];
838 break;
839 }
840 if (j < i)
841 continue;
842
843 for (q = 0; q < max_qp + 1; q++) {
844 int shift = div6[q];
845 int idx = rem6[q];
846 for (x = 0; x < 64; x++)
847 h->dequant8_coeff[i][q][(x >> 3) | ((x & 7) << 3)] =
848 ((uint32_t)dequant8_coeff_init[idx][dequant8_coeff_init_scan[((x >> 1) & 12) | (x & 3)]] *
849 h->pps.scaling_matrix8[i][x]) << shift;
850 }
851 }
852 }
853
854 static void init_dequant4_coeff_table(H264Context *h)
855 {
856 int i, j, q, x;
857 const int max_qp = 51 + 6 * (h->sps.bit_depth_luma - 8);
858 for (i = 0; i < 6; i++) {
859 h->dequant4_coeff[i] = h->dequant4_buffer[i];
860 for (j = 0; j < i; j++)
861 if (!memcmp(h->pps.scaling_matrix4[j], h->pps.scaling_matrix4[i],
862 16 * sizeof(uint8_t))) {
863 h->dequant4_coeff[i] = h->dequant4_buffer[j];
864 break;
865 }
866 if (j < i)
867 continue;
868
869 for (q = 0; q < max_qp + 1; q++) {
870 int shift = div6[q] + 2;
871 int idx = rem6[q];
872 for (x = 0; x < 16; x++)
873 h->dequant4_coeff[i][q][(x >> 2) | ((x << 2) & 0xF)] =
874 ((uint32_t)dequant4_coeff_init[idx][(x & 1) + ((x >> 2) & 1)] *
875 h->pps.scaling_matrix4[i][x]) << shift;
876 }
877 }
878 }
879
880 static void init_dequant_tables(H264Context *h)
881 {
882 int i, x;
883 init_dequant4_coeff_table(h);
884 if (h->pps.transform_8x8_mode)
885 init_dequant8_coeff_table(h);
886 if (h->sps.transform_bypass) {
887 for (i = 0; i < 6; i++)
888 for (x = 0; x < 16; x++)
889 h->dequant4_coeff[i][0][x] = 1 << 6;
890 if (h->pps.transform_8x8_mode)
891 for (i = 0; i < 6; i++)
892 for (x = 0; x < 64; x++)
893 h->dequant8_coeff[i][0][x] = 1 << 6;
894 }
895 }
896
897 int ff_h264_alloc_tables(H264Context *h)
898 {
899 MpegEncContext *const s = &h->s;
900 const int big_mb_num = s->mb_stride * (s->mb_height + 1);
901 const int row_mb_num = s->mb_stride * 2 * s->avctx->thread_count;
902 int x, y;
903
904 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->intra4x4_pred_mode,
905 row_mb_num * 8 * sizeof(uint8_t), fail)
906 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->non_zero_count,
907 big_mb_num * 48 * sizeof(uint8_t), fail)
908 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->slice_table_base,
909 (big_mb_num + s->mb_stride) * sizeof(*h->slice_table_base), fail)
910 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->cbp_table,
911 big_mb_num * sizeof(uint16_t), fail)
912 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->chroma_pred_mode_table,
913 big_mb_num * sizeof(uint8_t), fail)
914 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mvd_table[0],
915 16 * row_mb_num * sizeof(uint8_t), fail);
916 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mvd_table[1],
917 16 * row_mb_num * sizeof(uint8_t), fail);
918 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->direct_table,
919 4 * big_mb_num * sizeof(uint8_t), fail);
920 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->list_counts,
921 big_mb_num * sizeof(uint8_t), fail)
922
923 memset(h->slice_table_base, -1,
924 (big_mb_num + s->mb_stride) * sizeof(*h->slice_table_base));
925 h->slice_table = h->slice_table_base + s->mb_stride * 2 + 1;
926
927 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mb2b_xy,
928 big_mb_num * sizeof(uint32_t), fail);
929 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mb2br_xy,
930 big_mb_num * sizeof(uint32_t), fail);
931 for (y = 0; y < s->mb_height; y++)
932 for (x = 0; x < s->mb_width; x++) {
933 const int mb_xy = x + y * s->mb_stride;
934 const int b_xy = 4 * x + 4 * y * h->b_stride;
935
936 h->mb2b_xy[mb_xy] = b_xy;
937 h->mb2br_xy[mb_xy] = 8 * (FMO ? mb_xy : (mb_xy % (2 * s->mb_stride)));
938 }
939
940 if (!h->dequant4_coeff[0])
941 init_dequant_tables(h);
942
943 return 0;
944
945 fail:
946 free_tables(h, 1);
947 return -1;
948 }
949
950 /**
951 * Mimic alloc_tables(), but for every context thread.
952 */
953 static void clone_tables(H264Context *dst, H264Context *src, int i)
954 {
955 MpegEncContext *const s = &src->s;
956 dst->intra4x4_pred_mode = src->intra4x4_pred_mode + i * 8 * 2 * s->mb_stride;
957 dst->non_zero_count = src->non_zero_count;
958 dst->slice_table = src->slice_table;
959 dst->cbp_table = src->cbp_table;
960 dst->mb2b_xy = src->mb2b_xy;
961 dst->mb2br_xy = src->mb2br_xy;
962 dst->chroma_pred_mode_table = src->chroma_pred_mode_table;
963 dst->mvd_table[0] = src->mvd_table[0] + i * 8 * 2 * s->mb_stride;
964 dst->mvd_table[1] = src->mvd_table[1] + i * 8 * 2 * s->mb_stride;
965 dst->direct_table = src->direct_table;
966 dst->list_counts = src->list_counts;
967 dst->bipred_scratchpad = NULL;
968 ff_h264_pred_init(&dst->hpc, src->s.codec_id, src->sps.bit_depth_luma,
969 src->sps.chroma_format_idc);
970 }
971
972 /**
973 * Init context
974 * Allocate buffers which are not shared amongst multiple threads.
975 */
976 static int context_init(H264Context *h)
977 {
978 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->top_borders[0],
979 h->s.mb_width * 16 * 3 * sizeof(uint8_t) * 2, fail)
980 FF_ALLOCZ_OR_GOTO(h->s.avctx, h->top_borders[1],
981 h->s.mb_width * 16 * 3 * sizeof(uint8_t) * 2, fail)
982
983 h->ref_cache[0][scan8[5] + 1] =
984 h->ref_cache[0][scan8[7] + 1] =
985 h->ref_cache[0][scan8[13] + 1] =
986 h->ref_cache[1][scan8[5] + 1] =
987 h->ref_cache[1][scan8[7] + 1] =
988 h->ref_cache[1][scan8[13] + 1] = PART_NOT_AVAILABLE;
989
990 h->s.er.decode_mb = h264_er_decode_mb;
991 h->s.er.opaque = h;
992
993 return 0;
994
995 fail:
996 return -1; // free_tables will clean up for us
997 }
998
999 static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size,
1000 int parse_extradata);
1001
1002 static av_cold void common_init(H264Context *h)
1003 {
1004 MpegEncContext *const s = &h->s;
1005
1006 s->width = s->avctx->width;
1007 s->height = s->avctx->height;
1008 s->codec_id = s->avctx->codec->id;
1009
1010 ff_h264dsp_init(&h->h264dsp, 8, 1);
1011 ff_h264chroma_init(&h->h264chroma, h->sps.bit_depth_chroma);
1012 ff_h264qpel_init(&h->h264qpel, 8);
1013 ff_h264_pred_init(&h->hpc, s->codec_id, 8, 1);
1014
1015 h->dequant_coeff_pps = -1;
1016 s->unrestricted_mv = 1;
1017
1018 /* needed so that IDCT permutation is known early */
1019 ff_dsputil_init(&s->dsp, s->avctx);
1020 ff_videodsp_init(&s->vdsp, 8);
1021
1022 memset(h->pps.scaling_matrix4, 16, 6 * 16 * sizeof(uint8_t));
1023 memset(h->pps.scaling_matrix8, 16, 2 * 64 * sizeof(uint8_t));
1024 }
1025
1026 int ff_h264_decode_extradata(H264Context *h)
1027 {
1028 AVCodecContext *avctx = h->s.avctx;
1029
1030 if (avctx->extradata[0] == 1) {
1031 int i, cnt, nalsize;
1032 unsigned char *p = avctx->extradata;
1033
1034 h->is_avc = 1;
1035
1036 if (avctx->extradata_size < 7) {
1037 av_log(avctx, AV_LOG_ERROR, "avcC too short\n");
1038 return -1;
1039 }
1040 /* sps and pps in the avcC always have length coded with 2 bytes,
1041 * so put a fake nal_length_size = 2 while parsing them */
1042 h->nal_length_size = 2;
1043 // Decode sps from avcC
1044 cnt = *(p + 5) & 0x1f; // Number of sps
1045 p += 6;
1046 for (i = 0; i < cnt; i++) {
1047 nalsize = AV_RB16(p) + 2;
1048 if (p - avctx->extradata + nalsize > avctx->extradata_size)
1049 return -1;
1050 if (decode_nal_units(h, p, nalsize, 1) < 0) {
1051 av_log(avctx, AV_LOG_ERROR,
1052 "Decoding sps %d from avcC failed\n", i);
1053 return -1;
1054 }
1055 p += nalsize;
1056 }
1057 // Decode pps from avcC
1058 cnt = *(p++); // Number of pps
1059 for (i = 0; i < cnt; i++) {
1060 nalsize = AV_RB16(p) + 2;
1061 if (p - avctx->extradata + nalsize > avctx->extradata_size)
1062 return -1;
1063 if (decode_nal_units(h, p, nalsize, 1) < 0) {
1064 av_log(avctx, AV_LOG_ERROR,
1065 "Decoding pps %d from avcC failed\n", i);
1066 return -1;
1067 }
1068 p += nalsize;
1069 }
1070 // Now store right nal length size, that will be used to parse all other nals
1071 h->nal_length_size = (avctx->extradata[4] & 0x03) + 1;
1072 } else {
1073 h->is_avc = 0;
1074 if (decode_nal_units(h, avctx->extradata, avctx->extradata_size, 1) < 0)
1075 return -1;
1076 }
1077 return 0;
1078 }
1079
1080 av_cold int ff_h264_decode_init(AVCodecContext *avctx)
1081 {
1082 H264Context *h = avctx->priv_data;
1083 MpegEncContext *const s = &h->s;
1084 int i;
1085
1086 ff_MPV_decode_defaults(s);
1087
1088 s->avctx = avctx;
1089 common_init(h);
1090
1091 s->out_format = FMT_H264;
1092 s->workaround_bugs = avctx->workaround_bugs;
1093
1094 /* set defaults */
1095 // s->decode_mb = ff_h263_decode_mb;
1096 s->quarter_sample = 1;
1097 if (!avctx->has_b_frames)
1098 s->low_delay = 1;
1099
1100 avctx->chroma_sample_location = AVCHROMA_LOC_LEFT;
1101
1102 ff_h264_decode_init_vlc();
1103
1104 h->pixel_shift = 0;
1105 h->sps.bit_depth_luma = avctx->bits_per_raw_sample = 8;
1106
1107 h->thread_context[0] = h;
1108 h->outputed_poc = h->next_outputed_poc = INT_MIN;
1109 for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++)
1110 h->last_pocs[i] = INT_MIN;
1111 h->prev_poc_msb = 1 << 16;
1112 h->x264_build = -1;
1113 ff_h264_reset_sei(h);
1114 if (avctx->codec_id == AV_CODEC_ID_H264) {
1115 if (avctx->ticks_per_frame == 1)
1116 s->avctx->time_base.den *= 2;
1117 avctx->ticks_per_frame = 2;
1118 }
1119
1120 if (avctx->extradata_size > 0 && avctx->extradata &&
1121 ff_h264_decode_extradata(h))
1122 return -1;
1123
1124 if (h->sps.bitstream_restriction_flag &&
1125 s->avctx->has_b_frames < h->sps.num_reorder_frames) {
1126 s->avctx->has_b_frames = h->sps.num_reorder_frames;
1127 s->low_delay = 0;
1128 }
1129
1130 return 0;
1131 }
1132
1133 #define IN_RANGE(a, b, size) (((a) >= (b)) && ((a) < ((b) + (size))))
1134
1135 static void copy_picture_range(Picture **to, Picture **from, int count,
1136 MpegEncContext *new_base,
1137 MpegEncContext *old_base)
1138 {
1139 int i;
1140
1141 for (i = 0; i < count; i++) {
1142 assert((IN_RANGE(from[i], old_base, sizeof(*old_base)) ||
1143 IN_RANGE(from[i], old_base->picture,
1144 sizeof(Picture) * old_base->picture_count) ||
1145 !from[i]));
1146 to[i] = REBASE_PICTURE(from[i], new_base, old_base);
1147 }
1148 }
1149
1150 static void copy_parameter_set(void **to, void **from, int count, int size)
1151 {
1152 int i;
1153
1154 for (i = 0; i < count; i++) {
1155 if (to[i] && !from[i])
1156 av_freep(&to[i]);
1157 else if (from[i] && !to[i])
1158 to[i] = av_malloc(size);
1159
1160 if (from[i])
1161 memcpy(to[i], from[i], size);
1162 }
1163 }
1164
1165 static int decode_init_thread_copy(AVCodecContext *avctx)
1166 {
1167 H264Context *h = avctx->priv_data;
1168
1169 if (!avctx->internal->is_copy)
1170 return 0;
1171 memset(h->sps_buffers, 0, sizeof(h->sps_buffers));
1172 memset(h->pps_buffers, 0, sizeof(h->pps_buffers));
1173
1174 h->s.context_initialized = 0;
1175
1176 return 0;
1177 }
1178
1179 #define copy_fields(to, from, start_field, end_field) \
1180 memcpy(&to->start_field, &from->start_field, \
1181 (char *)&to->end_field - (char *)&to->start_field)
1182
1183 static int h264_slice_header_init(H264Context *, int);
1184
1185 static int h264_set_parameter_from_sps(H264Context *h);
1186
1187 static int decode_update_thread_context(AVCodecContext *dst,
1188 const AVCodecContext *src)
1189 {
1190 H264Context *h = dst->priv_data, *h1 = src->priv_data;
1191 MpegEncContext *const s = &h->s, *const s1 = &h1->s;
1192 int inited = s->context_initialized, err;
1193 int i;
1194
1195 if (dst == src || !s1->context_initialized)
1196 return 0;
1197
1198 if (inited &&
1199 (s->width != s1->width ||
1200 s->height != s1->height ||
1201 s->mb_width != s1->mb_width ||
1202 s->mb_height != s1->mb_height ||
1203 h->sps.bit_depth_luma != h1->sps.bit_depth_luma ||
1204 h->sps.chroma_format_idc != h1->sps.chroma_format_idc ||
1205 h->sps.colorspace != h1->sps.colorspace)) {
1206
1207 av_freep(&h->bipred_scratchpad);
1208
1209 s->width = s1->width;
1210 s->height = s1->height;
1211 s->mb_height = s1->mb_height;
1212 h->b_stride = h1->b_stride;
1213
1214 if ((err = h264_slice_header_init(h, 1)) < 0) {
1215 av_log(h->s.avctx, AV_LOG_ERROR, "h264_slice_header_init() failed");
1216 return err;
1217 }
1218 h->context_reinitialized = 1;
1219
1220 /* update linesize on resize for h264. The h264 decoder doesn't
1221 * necessarily call ff_MPV_frame_start in the new thread */
1222 s->linesize = s1->linesize;
1223 s->uvlinesize = s1->uvlinesize;
1224
1225 /* copy block_offset since frame_start may not be called */
1226 memcpy(h->block_offset, h1->block_offset, sizeof(h->block_offset));
1227 h264_set_parameter_from_sps(h);
1228 }
1229
1230 err = ff_mpeg_update_thread_context(dst, src);
1231 if (err)
1232 return err;
1233
1234 if (!inited) {
1235 for (i = 0; i < MAX_SPS_COUNT; i++)
1236 av_freep(h->sps_buffers + i);
1237
1238 for (i = 0; i < MAX_PPS_COUNT; i++)
1239 av_freep(h->pps_buffers + i);
1240
1241 // copy all fields after MpegEnc
1242 memcpy(&h->s + 1, &h1->s + 1,
1243 sizeof(H264Context) - sizeof(MpegEncContext));
1244 memset(h->sps_buffers, 0, sizeof(h->sps_buffers));
1245 memset(h->pps_buffers, 0, sizeof(h->pps_buffers));
1246 if (ff_h264_alloc_tables(h) < 0) {
1247 av_log(dst, AV_LOG_ERROR, "Could not allocate memory for h264\n");
1248 return AVERROR(ENOMEM);
1249 }
1250 context_init(h);
1251
1252 for (i = 0; i < 2; i++) {
1253 h->rbsp_buffer[i] = NULL;
1254 h->rbsp_buffer_size[i] = 0;
1255 }
1256 h->bipred_scratchpad = NULL;
1257
1258 h->thread_context[0] = h;
1259
1260 s->dsp.clear_blocks(h->mb);
1261 s->dsp.clear_blocks(h->mb + (24 * 16 << h->pixel_shift));
1262 }
1263
1264 /* frame_start may not be called for the next thread (if it's decoding
1265 * a bottom field) so this has to be allocated here */
1266 if (!h->bipred_scratchpad)
1267 h->bipred_scratchpad = av_malloc(16 * 6 * s->linesize);
1268
1269 // extradata/NAL handling
1270 h->is_avc = h1->is_avc;
1271
1272 // SPS/PPS
1273 copy_parameter_set((void **)h->sps_buffers, (void **)h1->sps_buffers,
1274 MAX_SPS_COUNT, sizeof(SPS));
1275 h->sps = h1->sps;
1276 copy_parameter_set((void **)h->pps_buffers, (void **)h1->pps_buffers,
1277 MAX_PPS_COUNT, sizeof(PPS));
1278 h->pps = h1->pps;
1279
1280 // Dequantization matrices
1281 // FIXME these are big - can they be only copied when PPS changes?
1282 copy_fields(h, h1, dequant4_buffer, dequant4_coeff);
1283
1284 for (i = 0; i < 6; i++)
1285 h->dequant4_coeff[i] = h->dequant4_buffer[0] +
1286 (h1->dequant4_coeff[i] - h1->dequant4_buffer[0]);
1287
1288 for (i = 0; i < 6; i++)
1289 h->dequant8_coeff[i] = h->dequant8_buffer[0] +
1290 (h1->dequant8_coeff[i] - h1->dequant8_buffer[0]);
1291
1292 h->dequant_coeff_pps = h1->dequant_coeff_pps;
1293
1294 // POC timing
1295 copy_fields(h, h1, poc_lsb, redundant_pic_count);
1296
1297 // reference lists
1298 copy_fields(h, h1, ref_count, list_count);
1299 copy_fields(h, h1, ref2frm, intra_gb);
1300 copy_fields(h, h1, short_ref, cabac_init_idc);
1301
1302 copy_picture_range(h->short_ref, h1->short_ref, 32, s, s1);
1303 copy_picture_range(h->long_ref, h1->long_ref, 32, s, s1);
1304 copy_picture_range(h->delayed_pic, h1->delayed_pic,
1305 MAX_DELAYED_PIC_COUNT + 2, s, s1);
1306
1307 h->last_slice_type = h1->last_slice_type;
1308
1309 if (!s->current_picture_ptr)
1310 return 0;
1311
1312 if (!s->droppable) {
1313 err = ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index);
1314 h->prev_poc_msb = h->poc_msb;
1315 h->prev_poc_lsb = h->poc_lsb;
1316 }
1317 h->prev_frame_num_offset = h->frame_num_offset;
1318 h->prev_frame_num = h->frame_num;
1319 h->outputed_poc = h->next_outputed_poc;
1320
1321 return err;
1322 }
1323
1324 int ff_h264_frame_start(H264Context *h)
1325 {
1326 MpegEncContext *const s = &h->s;
1327 int i;
1328 const int pixel_shift = h->pixel_shift;
1329
1330 if (ff_MPV_frame_start(s, s->avctx) < 0)
1331 return -1;
1332 ff_mpeg_er_frame_start(s);
1333 /*
1334 * ff_MPV_frame_start uses pict_type to derive key_frame.
1335 * This is incorrect for H.264; IDR markings must be used.
1336 * Zero here; IDR markings per slice in frame or fields are ORed in later.
1337 * See decode_nal_units().
1338 */
1339 s->current_picture_ptr->f.key_frame = 0;
1340 s->current_picture_ptr->mmco_reset = 0;
1341
1342 assert(s->linesize && s->uvlinesize);
1343
1344 for (i = 0; i < 16; i++) {
1345 h->block_offset[i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * s->linesize * ((scan8[i] - scan8[0]) >> 3);
1346 h->block_offset[48 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * s->linesize * ((scan8[i] - scan8[0]) >> 3);
1347 }
1348 for (i = 0; i < 16; i++) {
1349 h->block_offset[16 + i] =
1350 h->block_offset[32 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * s->uvlinesize * ((scan8[i] - scan8[0]) >> 3);
1351 h->block_offset[48 + 16 + i] =
1352 h->block_offset[48 + 32 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * s->uvlinesize * ((scan8[i] - scan8[0]) >> 3);
1353 }
1354
1355 /* can't be in alloc_tables because linesize isn't known there.
1356 * FIXME: redo bipred weight to not require extra buffer? */
1357 for (i = 0; i < s->slice_context_count; i++)
1358 if (h->thread_context[i] && !h->thread_context[i]->bipred_scratchpad)
1359 h->thread_context[i]->bipred_scratchpad = av_malloc(16 * 6 * s->linesize);
1360
1361 /* Some macroblocks can be accessed before they're available in case
1362 * of lost slices, MBAFF or threading. */
1363 memset(h->slice_table, -1,
1364 (s->mb_height * s->mb_stride - 1) * sizeof(*h->slice_table));
1365
1366 // s->decode = (s->flags & CODEC_FLAG_PSNR) || !s->encoding ||
1367 // s->current_picture.f.reference /* || h->contains_intra */ || 1;
1368
1369 /* We mark the current picture as non-reference after allocating it, so
1370 * that if we break out due to an error it can be released automatically
1371 * in the next ff_MPV_frame_start().
1372 * SVQ3 as well as most other codecs have only last/next/current and thus
1373 * get released even with set reference, besides SVQ3 and others do not
1374 * mark frames as reference later "naturally". */
1375 if (s->codec_id != AV_CODEC_ID_SVQ3)
1376 s->current_picture_ptr->f.reference = 0;
1377
1378 s->current_picture_ptr->field_poc[0] =
1379 s->current_picture_ptr->field_poc[1] = INT_MAX;
1380
1381 h->next_output_pic = NULL;
1382
1383 assert(s->current_picture_ptr->long_ref == 0);
1384
1385 return 0;
1386 }
1387
1388 /**
1389 * Run setup operations that must be run after slice header decoding.
1390 * This includes finding the next displayed frame.
1391 *
1392 * @param h h264 master context
1393 * @param setup_finished enough NALs have been read that we can call
1394 * ff_thread_finish_setup()
1395 */
1396 static void decode_postinit(H264Context *h, int setup_finished)
1397 {
1398 MpegEncContext *const s = &h->s;
1399 Picture *out = s->current_picture_ptr;
1400 Picture *cur = s->current_picture_ptr;
1401 int i, pics, out_of_order, out_idx;
1402 int invalid = 0, cnt = 0;
1403
1404 s->current_picture_ptr->f.qscale_type = FF_QSCALE_TYPE_H264;
1405 s->current_picture_ptr->f.pict_type = s->pict_type;
1406
1407 if (h->next_output_pic)
1408 return;
1409
1410 if (cur->field_poc[0] == INT_MAX || cur->field_poc[1] == INT_MAX) {
1411 /* FIXME: if we have two PAFF fields in one packet, we can't start
1412 * the next thread here. If we have one field per packet, we can.
1413 * The check in decode_nal_units() is not good enough to find this
1414 * yet, so we assume the worst for now. */
1415 // if (setup_finished)
1416 // ff_thread_finish_setup(s->avctx);
1417 return;
1418 }
1419
1420 cur->f.interlaced_frame = 0;
1421 cur->f.repeat_pict = 0;
1422
1423 /* Signal interlacing information externally. */
1424 /* Prioritize picture timing SEI information over used
1425 * decoding process if it exists. */
1426
1427 if (h->sps.pic_struct_present_flag) {
1428 switch (h->sei_pic_struct) {
1429 case SEI_PIC_STRUCT_FRAME:
1430 break;
1431 case SEI_PIC_STRUCT_TOP_FIELD:
1432 case SEI_PIC_STRUCT_BOTTOM_FIELD:
1433 cur->f.interlaced_frame = 1;
1434 break;
1435 case SEI_PIC_STRUCT_TOP_BOTTOM:
1436 case SEI_PIC_STRUCT_BOTTOM_TOP:
1437 if (FIELD_OR_MBAFF_PICTURE)
1438 cur->f.interlaced_frame = 1;
1439 else
1440 // try to flag soft telecine progressive
1441 cur->f.interlaced_frame = h->prev_interlaced_frame;
1442 break;
1443 case SEI_PIC_STRUCT_TOP_BOTTOM_TOP:
1444 case SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM:
1445 /* Signal the possibility of telecined film externally
1446 * (pic_struct 5,6). From these hints, let the applications
1447 * decide if they apply deinterlacing. */
1448 cur->f.repeat_pict = 1;
1449 break;
1450 case SEI_PIC_STRUCT_FRAME_DOUBLING:
1451 cur->f.repeat_pict = 2;
1452 break;
1453 case SEI_PIC_STRUCT_FRAME_TRIPLING:
1454 cur->f.repeat_pict = 4;
1455 break;
1456 }
1457
1458 if ((h->sei_ct_type & 3) &&
1459 h->sei_pic_struct <= SEI_PIC_STRUCT_BOTTOM_TOP)
1460 cur->f.interlaced_frame = (h->sei_ct_type & (1 << 1)) != 0;
1461 } else {
1462 /* Derive interlacing flag from used decoding process. */
1463 cur->f.interlaced_frame = FIELD_OR_MBAFF_PICTURE;
1464 }
1465 h->prev_interlaced_frame = cur->f.interlaced_frame;
1466
1467 if (cur->field_poc[0] != cur->field_poc[1]) {
1468 /* Derive top_field_first from field pocs. */
1469 cur->f.top_field_first = cur->field_poc[0] < cur->field_poc[1];
1470 } else {
1471 if (cur->f.interlaced_frame || h->sps.pic_struct_present_flag) {
1472 /* Use picture timing SEI information. Even if it is a
1473 * information of a past frame, better than nothing. */
1474 if (h->sei_pic_struct == SEI_PIC_STRUCT_TOP_BOTTOM ||
1475 h->sei_pic_struct == SEI_PIC_STRUCT_TOP_BOTTOM_TOP)
1476 cur->f.top_field_first = 1;
1477 else
1478 cur->f.top_field_first = 0;
1479 } else {
1480 /* Most likely progressive */
1481 cur->f.top_field_first = 0;
1482 }
1483 }
1484
1485 // FIXME do something with unavailable reference frames
1486
1487 /* Sort B-frames into display order */
1488
1489 if (h->sps.bitstream_restriction_flag &&
1490 s->avctx->has_b_frames < h->sps.num_reorder_frames) {
1491 s->avctx->has_b_frames = h->sps.num_reorder_frames;
1492 s->low_delay = 0;
1493 }
1494
1495 if (s->avctx->strict_std_compliance >= FF_COMPLIANCE_STRICT &&
1496 !h->sps.bitstream_restriction_flag) {
1497 s->avctx->has_b_frames = MAX_DELAYED_PIC_COUNT - 1;
1498 s->low_delay = 0;
1499 }
1500
1501 pics = 0;
1502 while (h->delayed_pic[pics])
1503 pics++;
1504
1505 assert(pics <= MAX_DELAYED_PIC_COUNT);
1506
1507 h->delayed_pic[pics++] = cur;
1508 if (cur->f.reference == 0)
1509 cur->f.reference = DELAYED_PIC_REF;
1510
1511 /* Frame reordering. This code takes pictures from coding order and sorts
1512 * them by their incremental POC value into display order. It supports POC
1513 * gaps, MMCO reset codes and random resets.
1514 * A "display group" can start either with a IDR frame (f.key_frame = 1),
1515 * and/or can be closed down with a MMCO reset code. In sequences where
1516 * there is no delay, we can't detect that (since the frame was already
1517 * output to the user), so we also set h->mmco_reset to detect the MMCO
1518 * reset code.
1519 * FIXME: if we detect insufficient delays (as per s->avctx->has_b_frames),
1520 * we increase the delay between input and output. All frames affected by
1521 * the lag (e.g. those that should have been output before another frame
1522 * that we already returned to the user) will be dropped. This is a bug
1523 * that we will fix later. */
1524 for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++) {
1525 cnt += out->poc < h->last_pocs[i];
1526 invalid += out->poc == INT_MIN;
1527 }
1528 if (!h->mmco_reset && !cur->f.key_frame &&
1529 cnt + invalid == MAX_DELAYED_PIC_COUNT && cnt > 0) {
1530 h->mmco_reset = 2;
1531 if (pics > 1)
1532 h->delayed_pic[pics - 2]->mmco_reset = 2;
1533 }
1534 if (h->mmco_reset || cur->f.key_frame) {
1535 for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++)
1536 h->last_pocs[i] = INT_MIN;
1537 cnt = 0;
1538 invalid = MAX_DELAYED_PIC_COUNT;
1539 }
1540 out = h->delayed_pic[0];
1541 out_idx = 0;
1542 for (i = 1; i < MAX_DELAYED_PIC_COUNT &&
1543 h->delayed_pic[i] &&
1544 !h->delayed_pic[i - 1]->mmco_reset &&
1545 !h->delayed_pic[i]->f.key_frame;
1546 i++)
1547 if (h->delayed_pic[i]->poc < out->poc) {
1548 out = h->delayed_pic[i];
1549 out_idx = i;
1550 }
1551 if (s->avctx->has_b_frames == 0 &&
1552 (h->delayed_pic[0]->f.key_frame || h->mmco_reset))
1553 h->next_outputed_poc = INT_MIN;
1554 out_of_order = !out->f.key_frame && !h->mmco_reset &&
1555 (out->poc < h->next_outputed_poc);
1556
1557 if (h->sps.bitstream_restriction_flag &&
1558 s->avctx->has_b_frames >= h->sps.num_reorder_frames) {
1559 } else if (out_of_order && pics - 1 == s->avctx->has_b_frames &&
1560 s->avctx->has_b_frames < MAX_DELAYED_PIC_COUNT) {
1561 if (invalid + cnt < MAX_DELAYED_PIC_COUNT) {
1562 s->avctx->has_b_frames = FFMAX(s->avctx->has_b_frames, cnt);
1563 }
1564 s->low_delay = 0;
1565 } else if (s->low_delay &&
1566 ((h->next_outputed_poc != INT_MIN &&
1567 out->poc > h->next_outputed_poc + 2) ||
1568 cur->f.pict_type == AV_PICTURE_TYPE_B)) {
1569 s->low_delay = 0;
1570 s->avctx->has_b_frames++;
1571 }
1572
1573 if (pics > s->avctx->has_b_frames) {
1574 out->f.reference &= ~DELAYED_PIC_REF;
1575 // for frame threading, the owner must be the second field's thread or
1576 // else the first thread can release the picture and reuse it unsafely
1577 out->owner2 = s;
1578 for (i = out_idx; h->delayed_pic[i]; i++)
1579 h->delayed_pic[i] = h->delayed_pic[i + 1];
1580 }
1581 memmove(h->last_pocs, &h->last_pocs[1],
1582 sizeof(*h->last_pocs) * (MAX_DELAYED_PIC_COUNT - 1));
1583 h->last_pocs[MAX_DELAYED_PIC_COUNT - 1] = cur->poc;
1584 if (!out_of_order && pics > s->avctx->has_b_frames) {
1585 h->next_output_pic = out;
1586 if (out->mmco_reset) {
1587 if (out_idx > 0) {
1588 h->next_outputed_poc = out->poc;
1589 h->delayed_pic[out_idx - 1]->mmco_reset = out->mmco_reset;
1590 } else {
1591 h->next_outputed_poc = INT_MIN;
1592 }
1593 } else {
1594 if (out_idx == 0 && pics > 1 && h->delayed_pic[0]->f.key_frame) {
1595 h->next_outputed_poc = INT_MIN;
1596 } else {
1597 h->next_outputed_poc = out->poc;
1598 }
1599 }
1600 h->mmco_reset = 0;
1601 } else {
1602 av_log(s->avctx, AV_LOG_DEBUG, "no picture\n");
1603 }
1604
1605 if (setup_finished)
1606 ff_thread_finish_setup(s->avctx);
1607 }
1608
1609 static av_always_inline void backup_mb_border(H264Context *h, uint8_t *src_y,
1610 uint8_t *src_cb, uint8_t *src_cr,
1611 int linesize, int uvlinesize,
1612 int simple)
1613 {
1614 MpegEncContext *const s = &h->s;
1615 uint8_t *top_border;
1616 int top_idx = 1;
1617 const int pixel_shift = h->pixel_shift;
1618 int chroma444 = CHROMA444;
1619 int chroma422 = CHROMA422;
1620
1621 src_y -= linesize;
1622 src_cb -= uvlinesize;
1623 src_cr -= uvlinesize;
1624
1625 if (!simple && FRAME_MBAFF) {
1626 if (s->mb_y & 1) {
1627 if (!MB_MBAFF) {
1628 top_border = h->top_borders[0][s->mb_x];
1629 AV_COPY128(top_border, src_y + 15 * linesize);
1630 if (pixel_shift)
1631 AV_COPY128(top_border + 16, src_y + 15 * linesize + 16);
1632 if (simple || !CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) {
1633 if (chroma444) {
1634 if (pixel_shift) {
1635 AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize);
1636 AV_COPY128(top_border + 48, src_cb + 15 * uvlinesize + 16);
1637 AV_COPY128(top_border + 64, src_cr + 15 * uvlinesize);
1638 AV_COPY128(top_border + 80, src_cr + 15 * uvlinesize + 16);
1639 } else {
1640 AV_COPY128(top_border + 16, src_cb + 15 * uvlinesize);
1641 AV_COPY128(top_border + 32, src_cr + 15 * uvlinesize);
1642 }
1643 } else if (chroma422) {
1644 if (pixel_shift) {
1645 AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize);
1646 AV_COPY128(top_border + 48, src_cr + 15 * uvlinesize);
1647 } else {
1648 AV_COPY64(top_border + 16, src_cb + 15 * uvlinesize);
1649 AV_COPY64(top_border + 24, src_cr + 15 * uvlinesize);
1650 }
1651 } else {
1652 if (pixel_shift) {
1653 AV_COPY128(top_border + 32, src_cb + 7 * uvlinesize);
1654 AV_COPY128(top_border + 48, src_cr + 7 * uvlinesize);
1655 } else {
1656 AV_COPY64(top_border + 16, src_cb + 7 * uvlinesize);
1657 AV_COPY64(top_border + 24, src_cr + 7 * uvlinesize);
1658 }
1659 }
1660 }
1661 }
1662 } else if (MB_MBAFF) {
1663 top_idx = 0;
1664 } else
1665 return;
1666 }
1667
1668 top_border = h->top_borders[top_idx][s->mb_x];
1669 /* There are two lines saved, the line above the top macroblock
1670 * of a pair, and the line above the bottom macroblock. */
1671 AV_COPY128(top_border, src_y + 16 * linesize);
1672 if (pixel_shift)
1673 AV_COPY128(top_border + 16, src_y + 16 * linesize + 16);
1674
1675 if (simple || !CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) {
1676 if (chroma444) {
1677 if (pixel_shift) {
1678 AV_COPY128(top_border + 32, src_cb + 16 * linesize);
1679 AV_COPY128(top_border + 48, src_cb + 16 * linesize + 16);
1680 AV_COPY128(top_border + 64, src_cr + 16 * linesize);
1681 AV_COPY128(top_border + 80, src_cr + 16 * linesize + 16);
1682 } else {
1683 AV_COPY128(top_border + 16, src_cb + 16 * linesize);
1684 AV_COPY128(top_border + 32, src_cr + 16 * linesize);
1685 }
1686 } else if (chroma422) {
1687 if (pixel_shift) {
1688 AV_COPY128(top_border + 32, src_cb + 16 * uvlinesize);
1689 AV_COPY128(top_border + 48, src_cr + 16 * uvlinesize);
1690 } else {
1691 AV_COPY64(top_border + 16, src_cb + 16 * uvlinesize);
1692 AV_COPY64(top_border + 24, src_cr + 16 * uvlinesize);
1693 }
1694 } else {
1695 if (pixel_shift) {
1696 AV_COPY128(top_border + 32, src_cb + 8 * uvlinesize);
1697 AV_COPY128(top_border + 48, src_cr + 8 * uvlinesize);
1698 } else {
1699 AV_COPY64(top_border + 16, src_cb + 8 * uvlinesize);
1700 AV_COPY64(top_border + 24, src_cr + 8 * uvlinesize);
1701 }
1702 }
1703 }
1704 }
1705
1706 static av_always_inline void xchg_mb_border(H264Context *h, uint8_t *src_y,
1707 uint8_t *src_cb, uint8_t *src_cr,
1708 int linesize, int uvlinesize,
1709 int xchg, int chroma444,
1710 int simple, int pixel_shift)
1711 {
1712 MpegEncContext *const s = &h->s;
1713 int deblock_topleft;
1714 int deblock_top;
1715 int top_idx = 1;
1716 uint8_t *top_border_m1;
1717 uint8_t *top_border;
1718
1719 if (!simple && FRAME_MBAFF) {
1720 if (s->mb_y & 1) {
1721 if (!MB_MBAFF)
1722 return;
1723 } else {
1724 top_idx = MB_MBAFF ? 0 : 1;
1725 }
1726 }
1727
1728 if (h->deblocking_filter == 2) {
1729 deblock_topleft = h->slice_table[h->mb_xy - 1 - s->mb_stride] == h->slice_num;
1730 deblock_top = h->top_type;
1731 } else {
1732 deblock_topleft = (s->mb_x > 0);
1733 deblock_top = (s->mb_y > !!MB_FIELD);
1734 }
1735
1736 src_y -= linesize + 1 + pixel_shift;
1737 src_cb -= uvlinesize + 1 + pixel_shift;
1738 src_cr -= uvlinesize + 1 + pixel_shift;
1739
1740 top_border_m1 = h->top_borders[top_idx][s->mb_x - 1];
1741 top_border = h->top_borders[top_idx][s->mb_x];
1742
1743 #define XCHG(a, b, xchg) \
1744 if (pixel_shift) { \
1745 if (xchg) { \
1746 AV_SWAP64(b + 0, a + 0); \
1747 AV_SWAP64(b + 8, a + 8); \
1748 } else { \
1749 AV_COPY128(b, a); \
1750 } \
1751 } else if (xchg) \
1752 AV_SWAP64(b, a); \
1753 else \
1754 AV_COPY64(b, a);
1755
1756 if (deblock_top) {
1757 if (deblock_topleft) {
1758 XCHG(top_border_m1 + (8 << pixel_shift),
1759 src_y - (7 << pixel_shift), 1);
1760 }
1761 XCHG(top_border + (0 << pixel_shift), src_y + (1 << pixel_shift), xchg);
1762 XCHG(top_border + (8 << pixel_shift), src_y + (9 << pixel_shift), 1);
1763 if (s->mb_x + 1 < s->mb_width) {
1764 XCHG(h->top_borders[top_idx][s->mb_x + 1],
1765 src_y + (17 << pixel_shift), 1);
1766 }
1767 }
1768 if (simple || !CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) {
1769 if (chroma444) {
1770 if (deblock_topleft) {
1771 XCHG(top_border_m1 + (24 << pixel_shift), src_cb - (7 << pixel_shift), 1);
1772 XCHG(top_border_m1 + (40 << pixel_shift), src_cr - (7 << pixel_shift), 1);
1773 }
1774 XCHG(top_border + (16 << pixel_shift), src_cb + (1 << pixel_shift), xchg);
1775 XCHG(top_border + (24 << pixel_shift), src_cb + (9 << pixel_shift), 1);
1776 XCHG(top_border + (32 << pixel_shift), src_cr + (1 << pixel_shift), xchg);
1777 XCHG(top_border + (40 << pixel_shift), src_cr + (9 << pixel_shift), 1);
1778 if (s->mb_x + 1 < s->mb_width) {
1779 XCHG(h->top_borders[top_idx][s->mb_x + 1] + (16 << pixel_shift), src_cb + (17 << pixel_shift), 1);
1780 XCHG(h->top_borders[top_idx][s->mb_x + 1] + (32 << pixel_shift), src_cr + (17 << pixel_shift), 1);
1781 }
1782 } else {
1783 if (deblock_top) {
1784 if (deblock_topleft) {
1785 XCHG(top_border_m1 + (16 << pixel_shift), src_cb - (7 << pixel_shift), 1);
1786 XCHG(top_border_m1 + (24 << pixel_shift), src_cr - (7 << pixel_shift), 1);
1787 }
1788 XCHG(top_border + (16 << pixel_shift), src_cb + 1 + pixel_shift, 1);
1789 XCHG(top_border + (24 << pixel_shift), src_cr + 1 + pixel_shift, 1);
1790 }
1791 }
1792 }
1793 }
1794
1795 static av_always_inline int dctcoef_get(int16_t *mb, int high_bit_depth,
1796 int index)
1797 {
1798 if (high_bit_depth) {
1799 return AV_RN32A(((int32_t *)mb) + index);
1800 } else
1801 return AV_RN16A(mb + index);
1802 }
1803
1804 static av_always_inline void dctcoef_set(int16_t *mb, int high_bit_depth,
1805 int index, int value)
1806 {
1807 if (high_bit_depth) {
1808 AV_WN32A(((int32_t *)mb) + index, value);
1809 } else
1810 AV_WN16A(mb + index, value);
1811 }
1812
1813 static av_always_inline void hl_decode_mb_predict_luma(H264Context *h,
1814 int mb_type, int is_h264,
1815 int simple,
1816 int transform_bypass,
1817 int pixel_shift,
1818 int *block_offset,
1819 int linesize,
1820 uint8_t *dest_y, int p)
1821 {
1822 MpegEncContext *const s = &h->s;
1823 void (*idct_add)(uint8_t *dst, int16_t *block, int stride);
1824 void (*idct_dc_add)(uint8_t *dst, int16_t *block, int stride);
1825 int i;
1826 int qscale = p == 0 ? s->qscale : h->chroma_qp[p - 1];
1827 block_offset += 16 * p;
1828 if (IS_INTRA4x4(mb_type)) {
1829 if (IS_8x8DCT(mb_type)) {
1830 if (transform_bypass) {
1831 idct_dc_add =
1832 idct_add = s->dsp.add_pixels8;
1833 } else {
1834 idct_dc_add = h->h264dsp.h264_idct8_dc_add;
1835 idct_add = h->h264dsp.h264_idct8_add;
1836 }
1837 for (i = 0; i < 16; i += 4) {
1838 uint8_t *const ptr = dest_y + block_offset[i];
1839 const int dir = h->intra4x4_pred_mode_cache[scan8[i]];
1840 if (transform_bypass && h->sps.profile_idc == 244 && dir <= 1) {
1841 h->hpc.pred8x8l_add[dir](ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize);
1842 } else {
1843 const int nnz = h->non_zero_count_cache[scan8[i + p * 16]];
1844 h->hpc.pred8x8l[dir](ptr, (h->topleft_samples_available << i) & 0x8000,
1845 (h->topright_samples_available << i) & 0x4000, linesize);
1846 if (nnz) {
1847 if (nnz == 1 && dctcoef_get(h->mb, pixel_shift, i * 16 + p * 256))
1848 idct_dc_add(ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize);
1849 else
1850 idct_add(ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize);
1851 }
1852 }
1853 }
1854 } else {
1855 if (transform_bypass) {
1856 idct_dc_add =
1857 idct_add = s->dsp.add_pixels4;
1858 } else {
1859 idct_dc_add = h->h264dsp.h264_idct_dc_add;
1860 idct_add = h->h264dsp.h264_idct_add;
1861 }
1862 for (i = 0; i < 16; i++) {
1863 uint8_t *const ptr = dest_y + block_offset[i];
1864 const int dir = h->intra4x4_pred_mode_cache[scan8[i]];
1865
1866 if (transform_bypass && h->sps.profile_idc == 244 && dir <= 1) {
1867 h->hpc.pred4x4_add[dir](ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize);
1868 } else {
1869 uint8_t *topright;
1870 int nnz, tr;
1871 uint64_t tr_high;
1872 if (dir == DIAG_DOWN_LEFT_PRED || dir == VERT_LEFT_PRED) {
1873 const int topright_avail = (h->topright_samples_available << i) & 0x8000;
1874 assert(s->mb_y || linesize <= block_offset[i]);
1875 if (!topright_avail) {
1876 if (pixel_shift) {
1877 tr_high = ((uint16_t *)ptr)[3 - linesize / 2] * 0x0001000100010001ULL;
1878 topright = (uint8_t *)&tr_high;
1879 } else {
1880 tr = ptr[3 - linesize] * 0x01010101u;
1881 topright = (uint8_t *)&tr;
1882 }
1883 } else
1884 topright = ptr + (4 << pixel_shift) - linesize;
1885 } else
1886 topright = NULL;
1887
1888 h->hpc.pred4x4[dir](ptr, topright, linesize);
1889 nnz = h->non_zero_count_cache[scan8[i + p * 16]];
1890 if (nnz) {
1891 if (is_h264) {
1892 if (nnz == 1 && dctcoef_get(h->mb, pixel_shift, i * 16 + p * 256))
1893 idct_dc_add(ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize);
1894 else
1895 idct_add(ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize);
1896 } else if (CONFIG_SVQ3_DECODER)
1897 ff_svq3_add_idct_c(ptr, h->mb + i * 16 + p * 256, linesize, qscale, 0);
1898 }
1899 }
1900 }
1901 }
1902 } else {
1903 h->hpc.pred16x16[h->intra16x16_pred_mode](dest_y, linesize);
1904 if (is_h264) {
1905 if (h->non_zero_count_cache[scan8[LUMA_DC_BLOCK_INDEX + p]]) {
1906 if (!transform_bypass)
1907 h->h264dsp.h264_luma_dc_dequant_idct(h->mb + (p * 256 << pixel_shift),
1908 h->mb_luma_dc[p],
1909 h->dequant4_coeff[p][qscale][0]);
1910 else {
1911 static const uint8_t dc_mapping[16] = {
1912 0 * 16, 1 * 16, 4 * 16, 5 * 16,
1913 2 * 16, 3 * 16, 6 * 16, 7 * 16,
1914 8 * 16, 9 * 16, 12 * 16, 13 * 16,
1915 10 * 16, 11 * 16, 14 * 16, 15 * 16 };
1916 for (i = 0; i < 16; i++)
1917 dctcoef_set(h->mb + (p * 256 << pixel_shift),
1918 pixel_shift, dc_mapping[i],
1919 dctcoef_get(h->mb_luma_dc[p],
1920 pixel_shift, i));
1921 }
1922 }
1923 } else if (CONFIG_SVQ3_DECODER)
1924 ff_svq3_luma_dc_dequant_idct_c(h->mb + p * 256,
1925 h->mb_luma_dc[p], qscale);
1926 }
1927 }
1928
1929 static av_always_inline void hl_decode_mb_idct_luma(H264Context *h, int mb_type,
1930 int is_h264, int simple,
1931 int transform_bypass,
1932 int pixel_shift,
1933 int *block_offset,
1934 int linesize,
1935 uint8_t *dest_y, int p)
1936 {
1937 MpegEncContext *const s = &h->s;
1938 void (*idct_add)(uint8_t *dst, int16_t *block, int stride);
1939 int i;
1940 block_offset += 16 * p;
1941 if (!IS_INTRA4x4(mb_type)) {
1942 if (is_h264) {
1943 if (IS_INTRA16x16(mb_type)) {
1944 if (transform_bypass) {
1945 if (h->sps.profile_idc == 244 &&
1946 (h->intra16x16_pred_mode == VERT_PRED8x8 ||
1947 h->intra16x16_pred_mode == HOR_PRED8x8)) {
1948 h->hpc.pred16x16_add[h->intra16x16_pred_mode](dest_y, block_offset,
1949 h->mb + (p * 256 << pixel_shift),
1950 linesize);
1951 } else {
1952 for (i = 0; i < 16; i++)
1953 if (h->non_zero_count_cache[scan8[i + p * 16]] ||
1954 dctcoef_get(h->mb, pixel_shift, i * 16 + p * 256))
1955 s->dsp.add_pixels4(dest_y + block_offset[i],
1956 h->mb + (i * 16 + p * 256 << pixel_shift),
1957 linesize);
1958 }
1959 } else {
1960 h->h264dsp.h264_idct_add16intra(dest_y, block_offset,
1961 h->mb + (p * 256 << pixel_shift),
1962 linesize,
1963 h->non_zero_count_cache + p * 5 * 8);
1964 }
1965 } else if (h->cbp & 15) {
1966 if (transform_bypass) {
1967 const int di = IS_8x8DCT(mb_type) ? 4 : 1;
1968 idct_add = IS_8x8DCT(mb_type) ? s->dsp.add_pixels8
1969 : s->dsp.add_pixels4;
1970 for (i = 0; i < 16; i += di)
1971 if (h->non_zero_count_cache[scan8[i + p * 16]])
1972 idct_add(dest_y + block_offset[i],
1973 h->mb + (i * 16 + p * 256 << pixel_shift),
1974 linesize);
1975 } else {
1976 if (IS_8x8DCT(mb_type))
1977 h->h264dsp.h264_idct8_add4(dest_y, block_offset,
1978 h->mb + (p * 256 << pixel_shift),
1979 linesize,
1980 h->non_zero_count_cache + p * 5 * 8);
1981 else
1982 h->h264dsp.h264_idct_add16(dest_y, block_offset,
1983 h->mb + (p * 256 << pixel_shift),
1984 linesize,
1985 h->non_zero_count_cache + p * 5 * 8);
1986 }
1987 }
1988 } else if (CONFIG_SVQ3_DECODER) {
1989 for (i = 0; i < 16; i++)
1990 if (h->non_zero_count_cache[scan8[i + p * 16]] || h->mb[i * 16 + p * 256]) {
1991 // FIXME benchmark weird rule, & below
1992 uint8_t *const ptr = dest_y + block_offset[i];
1993 ff_svq3_add_idct_c(ptr, h->mb + i * 16 + p * 256, linesize,
1994 s->qscale, IS_INTRA(mb_type) ? 1 : 0);
1995 }
1996 }
1997 }
1998 }
1999
2000 #define BITS 8
2001 #define SIMPLE 1
2002 #include "h264_mb_template.c"
2003
2004 #undef BITS
2005 #define BITS 16
2006 #include "h264_mb_template.c"
2007
2008 #undef SIMPLE
2009 #define SIMPLE 0
2010 #include "h264_mb_template.c"
2011
2012 void ff_h264_hl_decode_mb(H264Context *h)
2013 {
2014 MpegEncContext *const s = &h->s;
2015 const int mb_xy = h->mb_xy;
2016 const int mb_type = s->current_picture.f.mb_type[mb_xy];
2017 int is_complex = CONFIG_SMALL || h->is_complex || IS_INTRA_PCM(mb_type) || s->qscale == 0;
2018
2019 if (CHROMA444) {
2020 if (is_complex || h->pixel_shift)
2021 hl_decode_mb_444_complex(h);
2022 else
2023 hl_decode_mb_444_simple_8(h);
2024 } else if (is_complex) {
2025 hl_decode_mb_complex(h);
2026 } else if (h->pixel_shift) {
2027 hl_decode_mb_simple_16(h);
2028 } else
2029 hl_decode_mb_simple_8(h);
2030 }
2031
2032 static int pred_weight_table(H264Context *h)
2033 {
2034 MpegEncContext *const s = &h->s;
2035 int list, i;
2036 int luma_def, chroma_def;
2037
2038 h->use_weight = 0;
2039 h->use_weight_chroma = 0;
2040 h->luma_log2_weight_denom = get_ue_golomb(&s->gb);
2041 if (h->sps.chroma_format_idc)
2042 h->chroma_log2_weight_denom = get_ue_golomb(&s->gb);
2043 luma_def = 1 << h->luma_log2_weight_denom;
2044 chroma_def = 1 << h->chroma_log2_weight_denom;
2045
2046 for (list = 0; list < 2; list++) {
2047 h->luma_weight_flag[list] = 0;
2048 h->chroma_weight_flag[list] = 0;
2049 for (i = 0; i < h->ref_count[list]; i++) {
2050 int luma_weight_flag, chroma_weight_flag;
2051
2052 luma_weight_flag = get_bits1(&s->gb);
2053 if (luma_weight_flag) {
2054 h->luma_weight[i][list][0] = get_se_golomb(&s->gb);
2055 h->luma_weight[i][list][1] = get_se_golomb(&s->gb);
2056 if (h->luma_weight[i][list][0] != luma_def ||
2057 h->luma_weight[i][list][1] != 0) {
2058 h->use_weight = 1;
2059 h->luma_weight_flag[list] = 1;
2060 }
2061 } else {
2062 h->luma_weight[i][list][0] = luma_def;
2063 h->luma_weight[i][list][1] = 0;
2064 }
2065
2066 if (h->sps.chroma_format_idc) {
2067 chroma_weight_flag = get_bits1(&s->gb);
2068 if (chroma_weight_flag) {
2069 int j;
2070 for (j = 0; j < 2; j++) {
2071 h->chroma_weight[i][list][j][0] = get_se_golomb(&s->gb);
2072 h->chroma_weight[i][list][j][1] = get_se_golomb(&s->gb);
2073 if (h->chroma_weight[i][list][j][0] != chroma_def ||
2074 h->chroma_weight[i][list][j][1] != 0) {
2075 h->use_weight_chroma = 1;
2076 h->chroma_weight_flag[list] = 1;
2077 }
2078 }
2079 } else {
2080 int j;
2081 for (j = 0; j < 2; j++) {
2082 h->chroma_weight[i][list][j][0] = chroma_def;
2083 h->chroma_weight[i][list][j][1] = 0;
2084 }
2085 }
2086 }
2087 }
2088 if (h->slice_type_nos != AV_PICTURE_TYPE_B)
2089 break;
2090 }
2091 h->use_weight = h->use_weight || h->use_weight_chroma;
2092 return 0;
2093 }
2094
2095 /**
2096 * Initialize implicit_weight table.
2097 * @param field 0/1 initialize the weight for interlaced MBAFF
2098 * -1 initializes the rest
2099 */
2100 static void implicit_weight_table(H264Context *h, int field)
2101 {
2102 MpegEncContext *const s = &h->s;
2103 int ref0, ref1, i, cur_poc, ref_start, ref_count0, ref_count1;
2104
2105 for (i = 0; i < 2; i++) {
2106 h->luma_weight_flag[i] = 0;
2107 h->chroma_weight_flag[i] = 0;
2108 }
2109
2110 if (field < 0) {
2111 if (s->picture_structure == PICT_FRAME) {
2112 cur_poc = s->current_picture_ptr->poc;
2113 } else {
2114 cur_poc = s->current_picture_ptr->field_poc[s->picture_structure - 1];
2115 }
2116 if (h->ref_count[0] == 1 && h->ref_count[1] == 1 && !FRAME_MBAFF &&
2117 h->ref_list[0][0].poc + h->ref_list[1][0].poc == 2 * cur_poc) {
2118 h->use_weight = 0;
2119 h->use_weight_chroma = 0;
2120 return;
2121 }
2122 ref_start = 0;
2123 ref_count0 = h->ref_count[0];
2124 ref_count1 = h->ref_count[1];
2125 } else {
2126 cur_poc = s->current_picture_ptr->field_poc[field];
2127 ref_start = 16;
2128 ref_count0 = 16 + 2 * h->ref_count[0];
2129 ref_count1 = 16 + 2 * h->ref_count[1];
2130 }
2131
2132 h->use_weight = 2;
2133 h->use_weight_chroma = 2;
2134 h->luma_log2_weight_denom = 5;
2135 h->chroma_log2_weight_denom = 5;
2136
2137 for (ref0 = ref_start; ref0 < ref_count0; ref0++) {
2138 int poc0 = h->ref_list[0][ref0].poc;
2139 for (ref1 = ref_start; ref1 < ref_count1; ref1++) {
2140 int w = 32;
2141 if (!h->ref_list[0][ref0].long_ref && !h->ref_list[1][ref1].long_ref) {
2142 int poc1 = h->ref_list[1][ref1].poc;
2143 int td = av_clip(poc1 - poc0, -128, 127);
2144 if (td) {
2145 int tb = av_clip(cur_poc - poc0, -128, 127);
2146 int tx = (16384 + (FFABS(td) >> 1)) / td;
2147 int dist_scale_factor = (tb * tx + 32) >> 8;
2148 if (dist_scale_factor >= -64 && dist_scale_factor <= 128)
2149 w = 64 - dist_scale_factor;
2150 }
2151 }
2152 if (field < 0) {
2153 h->implicit_weight[ref0][ref1][0] =
2154 h->implicit_weight[ref0][ref1][1] = w;
2155 } else {
2156 h->implicit_weight[ref0][ref1][field] = w;
2157 }
2158 }
2159 }
2160 }
2161
2162 /**
2163 * instantaneous decoder refresh.
2164 */
2165 static void idr(H264Context *h)
2166 {
2167 ff_h264_remove_all_refs(h);
2168 h->prev_frame_num = 0;
2169 h->prev_frame_num_offset = 0;
2170 h->prev_poc_msb =
2171 h->prev_poc_lsb = 0;
2172 }
2173
2174 /* forget old pics after a seek */
2175 static void flush_change(H264Context *h)
2176 {
2177 int i;
2178 for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++)
2179 h->last_pocs[i] = INT_MIN;
2180 h->outputed_poc = h->next_outputed_poc = INT_MIN;
2181 h->prev_interlaced_frame = 1;
2182 idr(h);
2183 if (h->s.current_picture_ptr)
2184 h->s.current_picture_ptr->f.reference = 0;
2185 h->s.first_field = 0;
2186 memset(h->ref_list[0], 0, sizeof(h->ref_list[0]));
2187 memset(h->ref_list[1], 0, sizeof(h->ref_list[1]));
2188 memset(h->default_ref_list[0], 0, sizeof(h->default_ref_list[0]));
2189 memset(h->default_ref_list[1], 0, sizeof(h->default_ref_list[1]));
2190 ff_h264_reset_sei(h);
2191 }
2192
2193 /* forget old pics after a seek */
2194 static void flush_dpb(AVCodecContext *avctx)
2195 {
2196 H264Context *h = avctx->priv_data;
2197 int i;
2198
2199 for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++) {
2200 if (h->delayed_pic[i])
2201 h->delayed_pic[i]->f.reference = 0;
2202 h->delayed_pic[i] = NULL;
2203 }
2204
2205 flush_change(h);
2206 ff_mpeg_flush(avctx);
2207 }
2208
2209 static int init_poc(H264Context *h)
2210 {
2211 MpegEncContext *const s = &h->s;
2212 const int max_frame_num = 1 << h->sps.log2_max_frame_num;
2213 int field_poc[2];
2214 Picture *cur = s->current_picture_ptr;
2215
2216 h->frame_num_offset = h->prev_frame_num_offset;
2217 if (h->frame_num < h->prev_frame_num)
2218 h->frame_num_offset += max_frame_num;
2219
2220 if (h->sps.poc_type == 0) {
2221 const int max_poc_lsb = 1 << h->sps.log2_max_poc_lsb;
2222
2223 if (h->poc_lsb < h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb >= max_poc_lsb / 2)
2224 h->poc_msb = h->prev_poc_msb + max_poc_lsb;
2225 else if (h->poc_lsb > h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb < -max_poc_lsb / 2)
2226 h->poc_msb = h->prev_poc_msb - max_poc_lsb;
2227 else
2228 h->poc_msb = h->prev_poc_msb;
2229 field_poc[0] =
2230 field_poc[1] = h->poc_msb + h->poc_lsb;
2231 if (s->picture_structure == PICT_FRAME)
2232 field_poc[1] += h->delta_poc_bottom;
2233 } else if (h->sps.poc_type == 1) {
2234 int abs_frame_num, expected_delta_per_poc_cycle, expectedpoc;
2235 int i;
2236
2237 if (h->sps.poc_cycle_length != 0)
2238 abs_frame_num = h->frame_num_offset + h->frame_num;
2239 else
2240 abs_frame_num = 0;
2241
2242 if (h->nal_ref_idc == 0 && abs_frame_num > 0)
2243 abs_frame_num--;
2244
2245 expected_delta_per_poc_cycle = 0;
2246 for (i = 0; i < h->sps.poc_cycle_length; i++)
2247 // FIXME integrate during sps parse
2248 expected_delta_per_poc_cycle += h->sps.offset_for_ref_frame[i];
2249
2250 if (abs_frame_num > 0) {
2251 int poc_cycle_cnt = (abs_frame_num - 1) / h->sps.poc_cycle_length;
2252 int frame_num_in_poc_cycle = (abs_frame_num - 1) % h->sps.poc_cycle_length;
2253
2254 expectedpoc = poc_cycle_cnt * expected_delta_per_poc_cycle;
2255 for (i = 0; i <= frame_num_in_poc_cycle; i++)
2256 expectedpoc = expectedpoc + h->sps.offset_for_ref_frame[i];
2257 } else
2258 expectedpoc = 0;
2259
2260 if (h->nal_ref_idc == 0)
2261 expectedpoc = expectedpoc + h->sps.offset_for_non_ref_pic;
2262
2263 field_poc[0] = expectedpoc + h->delta_poc[0];
2264 field_poc[1] = field_poc[0] + h->sps.offset_for_top_to_bottom_field;
2265
2266 if (s->picture_structure == PICT_FRAME)
2267 field_poc[1] += h->delta_poc[1];
2268 } else {
2269 int poc = 2 * (h->frame_num_offset + h->frame_num);
2270
2271 if (!h->nal_ref_idc)
2272 poc--;
2273
2274 field_poc[0] = poc;
2275 field_poc[1] = poc;
2276 }
2277
2278 if (s->picture_structure != PICT_BOTTOM_FIELD)
2279 s->current_picture_ptr->field_poc[0] = field_poc[0];
2280 if (s->picture_structure != PICT_TOP_FIELD)
2281 s->current_picture_ptr->field_poc[1] = field_poc[1];
2282 cur->poc = FFMIN(cur->field_poc[0], cur->field_poc[1]);
2283
2284 return 0;
2285 }
2286
2287 /**
2288 * initialize scan tables
2289 */
2290 static void init_scan_tables(H264Context *h)
2291 {
2292 int i;
2293 for (i = 0; i < 16; i++) {
2294 #define T(x) (x >> 2) | ((x << 2) & 0xF)
2295 h->zigzag_scan[i] = T(zigzag_scan[i]);
2296 h->field_scan[i] = T(field_scan[i]);
2297 #undef T
2298 }
2299 for (i = 0; i < 64; i++) {
2300 #define T(x) (x >> 3) | ((x & 7) << 3)
2301 h->zigzag_scan8x8[i] = T(ff_zigzag_direct[i]);
2302 h->zigzag_scan8x8_cavlc[i] = T(zigzag_scan8x8_cavlc[i]);
2303 h->field_scan8x8[i] = T(field_scan8x8[i]);
2304 h->field_scan8x8_cavlc[i] = T(field_scan8x8_cavlc[i]);
2305 #undef T
2306 }
2307 if (h->sps.transform_bypass) { // FIXME same ugly
2308 h->zigzag_scan_q0 = zigzag_scan;
2309 h->zigzag_scan8x8_q0 = ff_zigzag_direct;
2310 h->zigzag_scan8x8_cavlc_q0 = zigzag_scan8x8_cavlc;
2311 h->field_scan_q0 = field_scan;
2312 h->field_scan8x8_q0 = field_scan8x8;
2313 h->field_scan8x8_cavlc_q0 = field_scan8x8_cavlc;
2314 } else {
2315 h->zigzag_scan_q0 = h->zigzag_scan;
2316 h->zigzag_scan8x8_q0 = h->zigzag_scan8x8;
2317 h->zigzag_scan8x8_cavlc_q0 = h->zigzag_scan8x8_cavlc;
2318 h->field_scan_q0 = h->field_scan;
2319 h->field_scan8x8_q0 = h->field_scan8x8;
2320 h->field_scan8x8_cavlc_q0 = h->field_scan8x8_cavlc;
2321 }
2322 }
2323
2324 static int field_end(H264Context *h, int in_setup)
2325 {
2326 MpegEncContext *const s = &h->s;
2327 AVCodecContext *const avctx = s->avctx;
2328 int err = 0;
2329 s->mb_y = 0;
2330
2331 if (!in_setup && !s->droppable)
2332 ff_thread_report_progress(&s->current_picture_ptr->f, INT_MAX,
2333 s->picture_structure == PICT_BOTTOM_FIELD);
2334
2335 if (CONFIG_H264_VDPAU_DECODER &&
2336 s->avctx->codec->capabilities & CODEC_CAP_HWACCEL_VDPAU)
2337 ff_vdpau_h264_set_reference_frames(s);
2338
2339 if (in_setup || !(avctx->active_thread_type & FF_THREAD_FRAME)) {
2340 if (!s->droppable) {
2341 err = ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index);
2342 h->prev_poc_msb = h->poc_msb;
2343 h->prev_poc_lsb = h->poc_lsb;
2344 }
2345 h->prev_frame_num_offset = h->frame_num_offset;
2346 h->prev_frame_num = h->frame_num;
2347 h->outputed_poc = h->next_outputed_poc;
2348 }
2349
2350 if (avctx->hwaccel) {
2351 if (avctx->hwaccel->end_frame(avctx) < 0)
2352 av_log(avctx, AV_LOG_ERROR,
2353 "hardware accelerator failed to decode picture\n");
2354 }
2355
2356 if (CONFIG_H264_VDPAU_DECODER &&
2357 s->avctx->codec->capabilities & CODEC_CAP_HWACCEL_VDPAU)
2358 ff_vdpau_h264_picture_complete(s);
2359
2360 /*
2361 * FIXME: Error handling code does not seem to support interlaced
2362 * when slices span multiple rows
2363 * The ff_er_add_slice calls don't work right for bottom
2364 * fields; they cause massive erroneous error concealing
2365 * Error marking covers both fields (top and bottom).
2366 * This causes a mismatched s->error_count
2367 * and a bad error table. Further, the error count goes to
2368 * INT_MAX when called for bottom field, because mb_y is
2369 * past end by one (callers fault) and resync_mb_y != 0
2370 * causes problems for the first MB line, too.
2371 */
2372 if (!FIELD_PICTURE)
2373 ff_er_frame_end(&s->er);
2374
2375 ff_MPV_frame_end(s);
2376
2377 h->current_slice = 0;
2378
2379 return err;
2380 }
2381
2382 /**
2383 * Replicate H264 "master" context to thread contexts.
2384 */
2385 static int clone_slice(H264Context *dst, H264Context *src)
2386 {
2387 int ret;
2388
2389 memcpy(dst->block_offset, src->block_offset, sizeof(dst->block_offset));
2390 dst->s.current_picture_ptr = src->s.current_picture_ptr;
2391 dst->s.current_picture = src->s.current_picture;
2392 dst->s.linesize = src->s.linesize;
2393 dst->s.uvlinesize = src->s.uvlinesize;
2394 dst->s.first_field = src->s.first_field;
2395
2396 if (!dst->s.edge_emu_buffer &&
2397 (ret = ff_mpv_frame_size_alloc(&dst->s, dst->s.linesize))) {
2398 av_log(dst->s.avctx, AV_LOG_ERROR,
2399 "Failed to allocate scratch buffers\n");
2400 return ret;
2401 }
2402
2403 dst->prev_poc_msb = src->prev_poc_msb;
2404 dst->prev_poc_lsb = src->prev_poc_lsb;
2405 dst->prev_frame_num_offset = src->prev_frame_num_offset;
2406 dst->prev_frame_num = src->prev_frame_num;
2407 dst->short_ref_count = src->short_ref_count;
2408
2409 memcpy(dst->short_ref, src->short_ref, sizeof(dst->short_ref));
2410 memcpy(dst->long_ref, src->long_ref, sizeof(dst->long_ref));
2411 memcpy(dst->default_ref_list, src->default_ref_list, sizeof(dst->default_ref_list));
2412
2413 memcpy(dst->dequant4_coeff, src->dequant4_coeff, sizeof(src->dequant4_coeff));
2414 memcpy(dst->dequant8_coeff, src->dequant8_coeff, sizeof(src->dequant8_coeff));
2415
2416 return 0;
2417 }
2418
2419 /**
2420 * Compute profile from profile_idc and constraint_set?_flags.
2421 *
2422 * @param sps SPS
2423 *
2424 * @return profile as defined by FF_PROFILE_H264_*
2425 */
2426 int ff_h264_get_profile(SPS *sps)
2427 {
2428 int profile = sps->profile_idc;
2429
2430 switch (sps->profile_idc) {
2431 case FF_PROFILE_H264_BASELINE:
2432 // constraint_set1_flag set to 1
2433 profile |= (sps->constraint_set_flags & 1 << 1) ? FF_PROFILE_H264_CONSTRAINED : 0;
2434 break;
2435 case FF_PROFILE_H264_HIGH_10:
2436 case FF_PROFILE_H264_HIGH_422:
2437 case FF_PROFILE_H264_HIGH_444_PREDICTIVE:
2438 // constraint_set3_flag set to 1
2439 profile |= (sps->constraint_set_flags & 1 << 3) ? FF_PROFILE_H264_INTRA : 0;
2440 break;
2441 }
2442
2443 return profile;
2444 }
2445
2446 static int h264_set_parameter_from_sps(H264Context *h)
2447 {
2448 MpegEncContext *s = &h->s;
2449
2450 if (s->flags & CODEC_FLAG_LOW_DELAY ||
2451 (h->sps.bitstream_restriction_flag &&
2452 !h->sps.num_reorder_frames)) {
2453 if (s->avctx->has_b_frames > 1 || h->delayed_pic[0])
2454 av_log(h->s.avctx, AV_LOG_WARNING, "Delayed frames seen. "
2455 "Reenabling low delay requires a codec flush.\n");
2456 else
2457 s->low_delay = 1;
2458 }
2459
2460 if (s->avctx->has_b_frames < 2)
2461 s->avctx->has_b_frames = !s->low_delay;
2462
2463 if (s->avctx->bits_per_raw_sample != h->sps.bit_depth_luma ||
2464 h->cur_chroma_format_idc != h->sps.chroma_format_idc) {
2465 if (s->avctx->codec &&
2466 s->avctx->codec->capabilities & CODEC_CAP_HWACCEL_VDPAU &&
2467 (h->sps.bit_depth_luma != 8 || h->sps.chroma_format_idc > 1)) {
2468 av_log(s->avctx, AV_LOG_ERROR,
2469 "VDPAU decoding does not support video colorspace.\n");
2470 return AVERROR_INVALIDDATA;
2471 }
2472 if (h->sps.bit_depth_luma >= 8 && h->sps.bit_depth_luma <= 10) {
2473 s->avctx->bits_per_raw_sample = h->sps.bit_depth_luma;
2474 h->cur_chroma_format_idc = h->sps.chroma_format_idc;
2475 h->pixel_shift = h->sps.bit_depth_luma > 8;
2476
2477 ff_h264dsp_init(&h->h264dsp, h->sps.bit_depth_luma,
2478 h->sps.chroma_format_idc);
2479 ff_h264chroma_init(&h->h264chroma, h->sps.bit_depth_chroma);
2480 ff_h264qpel_init(&h->h264qpel, h->sps.bit_depth_luma);
2481 ff_h264_pred_init(&h->hpc, s->codec_id, h->sps.bit_depth_luma,
2482 h->sps.chroma_format_idc);
2483 s->dsp.dct_bits = h->sps.bit_depth_luma > 8 ? 32 : 16;
2484 ff_dsputil_init(&s->dsp, s->avctx);
2485 ff_videodsp_init(&s->vdsp, h->sps.bit_depth_luma);
2486 } else {
2487 av_log(s->avctx, AV_LOG_ERROR, "Unsupported bit depth: %d\n",
2488 h->sps.bit_depth_luma);
2489 return AVERROR_INVALIDDATA;
2490 }
2491 }
2492 return 0;
2493 }
2494
2495 static enum PixelFormat get_pixel_format(H264Context *h)
2496 {
2497 MpegEncContext *const s = &h->s;
2498 switch (h->sps.bit_depth_luma) {
2499 case 9:
2500 if (CHROMA444) {
2501 if (s->avctx->colorspace == AVCOL_SPC_RGB) {
2502 return AV_PIX_FMT_GBRP9;
2503 } else
2504 return AV_PIX_FMT_YUV444P9;
2505 } else if (CHROMA422)
2506 return AV_PIX_FMT_YUV422P9;
2507 else
2508 return AV_PIX_FMT_YUV420P9;
2509 break;
2510 case 10:
2511 if (CHROMA444) {
2512 if (s->avctx->colorspace == AVCOL_SPC_RGB) {
2513 return AV_PIX_FMT_GBRP10;
2514 } else
2515 return AV_PIX_FMT_YUV444P10;
2516 } else if (CHROMA422)
2517 return AV_PIX_FMT_YUV422P10;
2518 else
2519 return AV_PIX_FMT_YUV420P10;
2520 break;
2521 case 8:
2522 if (CHROMA444) {
2523 if (s->avctx->colorspace == AVCOL_SPC_RGB) {
2524 return AV_PIX_FMT_GBRP;
2525 } else
2526 return s->avctx->color_range == AVCOL_RANGE_JPEG ? AV_PIX_FMT_YUVJ444P
2527 : AV_PIX_FMT_YUV444P;
2528 } else if (CHROMA422) {
2529 return s->avctx->color_range == AVCOL_RANGE_JPEG ? AV_PIX_FMT_YUVJ422P
2530 : AV_PIX_FMT_YUV422P;
2531 } else {
2532 return s->avctx->get_format(s->avctx, s->avctx->codec->pix_fmts ?
2533 s->avctx->codec->pix_fmts :
2534 s->avctx->color_range == AVCOL_RANGE_JPEG ?
2535 hwaccel_pixfmt_list_h264_jpeg_420 :
2536 ff_hwaccel_pixfmt_list_420);
2537 }
2538 break;
2539 default:
2540 av_log(s->avctx, AV_LOG_ERROR,
2541 "Unsupported bit depth: %d\n", h->sps.bit_depth_luma);
2542 return AVERROR_INVALIDDATA;
2543 }
2544 }
2545
2546 static int h264_slice_header_init(H264Context *h, int reinit)
2547 {
2548 MpegEncContext *const s = &h->s;
2549 int i, ret;
2550
2551 avcodec_set_dimensions(s->avctx, s->width, s->height);
2552 s->avctx->sample_aspect_ratio = h->sps.sar;
2553 av_assert0(s->avctx->sample_aspect_ratio.den);
2554
2555 if (h->sps.timing_info_present_flag) {
2556 int64_t den = h->sps.time_scale;
2557 if (h->x264_build < 44U)
2558 den *= 2;
2559 av_reduce(&s->avctx->time_base.num, &s->avctx->time_base.den,
2560 h->sps.num_units_in_tick, den, 1 << 30);
2561 }
2562
2563 s->avctx->hwaccel = ff_find_hwaccel(s->avctx->codec->id, s->avctx->pix_fmt);
2564
2565 if (reinit) {
2566 free_tables(h, 0);
2567 if ((ret = ff_MPV_common_frame_size_change(s)) < 0) {
2568 av_log(h->s.avctx, AV_LOG_ERROR, "ff_MPV_common_frame_size_change() failed.\n");
2569 return ret;
2570 }
2571 } else {
2572 if ((ret = ff_MPV_common_init(s)) < 0) {
2573 av_log(h->s.avctx, AV_LOG_ERROR, "ff_MPV_common_init() failed.\n");
2574 return ret;
2575 }
2576 }
2577 s->first_field = 0;
2578 h->prev_interlaced_frame = 1;
2579
2580 init_scan_tables(h);
2581 if (ff_h264_alloc_tables(h) < 0) {
2582 av_log(h->s.avctx, AV_LOG_ERROR,
2583 "Could not allocate memory for h264\n");
2584 return AVERROR(ENOMEM);
2585 }
2586
2587 if (!HAVE_THREADS || !(s->avctx->active_thread_type & FF_THREAD_SLICE)) {
2588 if (context_init(h) < 0) {
2589 av_log(h->s.avctx, AV_LOG_ERROR, "context_init() failed.\n");
2590 return -1;
2591 }
2592 } else {
2593 for (i = 1; i < s->slice_context_count; i++) {
2594 H264Context *c;
2595 c = h->thread_context[i] = av_malloc(sizeof(H264Context));
2596 memcpy(c, h->s.thread_context[i], sizeof(MpegEncContext));
2597 memset(&c->s + 1, 0, sizeof(H264Context) - sizeof(MpegEncContext));
2598 c->h264dsp = h->h264dsp;
2599 c->h264qpel = h->h264qpel;
2600 c->h264chroma = h->h264chroma;
2601 c->sps = h->sps;
2602 c->pps = h->pps;
2603 c->pixel_shift = h->pixel_shift;
2604 init_scan_tables(c);
2605 clone_tables(c, h, i);
2606 }
2607
2608 for (i = 0; i < s->slice_context_count; i++)
2609 if (context_init(h->thread_context[i]) < 0) {
2610 av_log(h->s.avctx, AV_LOG_ERROR, "context_init() failed.\n");
2611 return -1;
2612 }
2613 }
2614
2615 return 0;
2616 }
2617
2618 /**
2619 * Decode a slice header.
2620 * This will also call ff_MPV_common_init() and frame_start() as needed.
2621 *
2622 * @param h h264context
2623 * @param h0 h264 master context (differs from 'h' when doing sliced based
2624 * parallel decoding)
2625 *
2626 * @return 0 if okay, <0 if an error occurred, 1 if decoding must not be multithreaded
2627 */
2628 static int decode_slice_header(H264Context *h, H264Context *h0)
2629 {
2630 MpegEncContext *const s = &h->s;
2631 MpegEncContext *const s0 = &h0->s;
2632 unsigned int first_mb_in_slice;
2633 unsigned int pps_id;
2634 int num_ref_idx_active_override_flag, max_refs, ret;
2635 unsigned int slice_type, tmp, i, j;
2636 int default_ref_list_done = 0;
2637 int last_pic_structure, last_pic_droppable;
2638 int needs_reinit = 0;
2639
2640 s->me.qpel_put = h->h264qpel.put_h264_qpel_pixels_tab;
2641 s->me.qpel_avg = h->h264qpel.avg_h264_qpel_pixels_tab;
2642
2643 first_mb_in_slice = get_ue_golomb(&s->gb);
2644
2645 if (first_mb_in_slice == 0) { // FIXME better field boundary detection
2646 if (h0->current_slice && FIELD_PICTURE) {
2647 field_end(h, 1);
2648 }
2649
2650 h0->current_slice = 0;
2651 if (!s0->first_field) {
2652 if (s->current_picture_ptr && !s->droppable &&
2653 s->current_picture_ptr->owner2 == s) {
2654 ff_thread_report_progress(&s->current_picture_ptr->f, INT_MAX,
2655 s->picture_structure == PICT_BOTTOM_FIELD);
2656 }
2657 s->current_picture_ptr = NULL;
2658 }
2659 }
2660
2661 slice_type = get_ue_golomb_31(&s->gb);
2662 if (slice_type > 9) {
2663 av_log(h->s.avctx, AV_LOG_ERROR,
2664 "slice type too large (%d) at %d %d\n",
2665 h->slice_type, s->mb_x, s->mb_y);
2666 return -1;
2667 }
2668 if (slice_type > 4) {
2669 slice_type -= 5;
2670 h->slice_type_fixed = 1;
2671 } else
2672 h->slice_type_fixed = 0;
2673
2674 slice_type = golomb_to_pict_type[slice_type];
2675 if (slice_type == AV_PICTURE_TYPE_I ||
2676 (h0->current_slice != 0 && slice_type == h0->last_slice_type)) {
2677 default_ref_list_done = 1;
2678 }
2679 h->slice_type = slice_type;
2680 h->slice_type_nos = slice_type & 3;
2681
2682 // to make a few old functions happy, it's wrong though
2683 s->pict_type = h->slice_type;
2684
2685 pps_id = get_ue_golomb(&s->gb);
2686 if (pps_id >= MAX_PPS_COUNT) {
2687 av_log(h->s.avctx, AV_LOG_ERROR, "pps_id out of range\n");
2688 return -1;
2689 }
2690 if (!h0->pps_buffers[pps_id]) {
2691 av_log(h->s.avctx, AV_LOG_ERROR,
2692 "non-existing PPS %u referenced\n",
2693 pps_id);
2694 return -1;
2695 }
2696 h->pps = *h0->pps_buffers[pps_id];
2697
2698 if (!h0->sps_buffers[h->pps.sps_id]) {
2699 av_log(h->s.avctx, AV_LOG_ERROR,
2700 "non-existing SPS %u referenced\n",
2701 h->pps.sps_id);
2702 return -1;
2703 }
2704
2705 if (h->pps.sps_id != h->current_sps_id ||
2706 h->context_reinitialized ||
2707 h0->sps_buffers[h->pps.sps_id]->new) {
2708 SPS *new_sps = h0->sps_buffers[h->pps.sps_id];
2709
2710 h0->sps_buffers[h->pps.sps_id]->new = 0;
2711
2712 if (h->sps.chroma_format_idc != new_sps->chroma_format_idc ||
2713 h->sps.bit_depth_luma != new_sps->bit_depth_luma)
2714 needs_reinit = 1;
2715
2716 h->current_sps_id = h->pps.sps_id;
2717 h->sps = *h0->sps_buffers[h->pps.sps_id];
2718
2719 if ((ret = h264_set_parameter_from_sps(h)) < 0)
2720 return ret;
2721 }
2722
2723 s->avctx->profile = ff_h264_get_profile(&h->sps);
2724 s->avctx->level = h->sps.level_idc;
2725 s->avctx->refs = h->sps.ref_frame_count;
2726
2727 if (s->mb_width != h->sps.mb_width ||
2728 s->mb_height != h->sps.mb_height * (2 - h->sps.frame_mbs_only_flag))
2729 needs_reinit = 1;
2730
2731 s->mb_width = h->sps.mb_width;
2732 s->mb_height = h->sps.mb_height * (2 - h->sps.frame_mbs_only_flag);
2733
2734 h->b_stride = s->mb_width * 4;
2735
2736 s->chroma_y_shift = h->sps.chroma_format_idc <= 1; // 400 uses yuv420p
2737
2738 s->width = 16 * s->mb_width - (2 >> CHROMA444) * FFMIN(h->sps.crop_right, (8 << CHROMA444) - 1);
2739 if (h->sps.frame_mbs_only_flag)
2740 s->height = 16 * s->mb_height - (1 << s->chroma_y_shift) * FFMIN(h->sps.crop_bottom, (16 >> s->chroma_y_shift) - 1);
2741 else
2742 s->height = 16 * s->mb_height - (2 << s->chroma_y_shift) * FFMIN(h->sps.crop_bottom, (16 >> s->chroma_y_shift) - 1);
2743
2744 if (FFALIGN(s->avctx->width, 16) == s->width &&
2745 FFALIGN(s->avctx->height, 16) == s->height) {
2746 s->width = s->avctx->width;
2747 s->height = s->avctx->height;
2748 }
2749
2750 if (h->sps.video_signal_type_present_flag) {
2751 s->avctx->color_range = h->sps.full_range ? AVCOL_RANGE_JPEG
2752 : AVCOL_RANGE_MPEG;
2753 if (h->sps.colour_description_present_flag) {
2754 if (s->avctx->colorspace != h->sps.colorspace)
2755 needs_reinit = 1;
2756 s->avctx->color_primaries = h->sps.color_primaries;
2757 s->avctx->color_trc = h->sps.color_trc;
2758 s->avctx->colorspace = h->sps.colorspace;
2759 }
2760 }
2761
2762 if (s->context_initialized &&
2763 (s->width != s->avctx->width ||
2764 s->height != s->avctx->height ||
2765 needs_reinit ||
2766 av_cmp_q(h->sps.sar, s->avctx->sample_aspect_ratio))) {
2767
2768 if (h != h0) {
2769 av_log(s->avctx, AV_LOG_ERROR, "changing width/height on "
2770 "slice %d\n", h0->current_slice + 1);
2771 return AVERROR_INVALIDDATA;
2772 }
2773
2774 flush_change(h);
2775
2776 if ((ret = get_pixel_format(h)) < 0)
2777 return ret;
2778 s->avctx->pix_fmt = ret;
2779
2780 av_log(h->s.avctx, AV_LOG_INFO, "Reinit context to %dx%d, "
2781 "pix_fmt: %d\n", s->width, s->height, s->avctx->pix_fmt);
2782
2783 if ((ret = h264_slice_header_init(h, 1)) < 0) {
2784 av_log(h->s.avctx, AV_LOG_ERROR,
2785 "h264_slice_header_init() failed\n");
2786 return ret;
2787 }
2788 h->context_reinitialized = 1;
2789 }
2790 if (!s->context_initialized) {
2791 if (h != h0) {
2792 av_log(h->s.avctx, AV_LOG_ERROR,
2793 "Cannot (re-)initialize context during parallel decoding.\n");
2794 return -1;
2795 }
2796
2797 if ((ret = get_pixel_format(h)) < 0)
2798 return ret;
2799 s->avctx->pix_fmt = ret;
2800
2801 if ((ret = h264_slice_header_init(h, 0)) < 0) {
2802 av_log(h->s.avctx, AV_LOG_ERROR,
2803 "h264_slice_header_init() failed\n");
2804 return ret;
2805 }
2806 }
2807
2808 if (h == h0 && h->dequant_coeff_pps != pps_id) {
2809 h->dequant_coeff_pps = pps_id;
2810 init_dequant_tables(h);
2811 }
2812
2813 h->frame_num = get_bits(&s->gb, h->sps.log2_max_frame_num);
2814
2815 h->mb_mbaff = 0;
2816 h->mb_aff_frame = 0;
2817 last_pic_structure = s0->picture_structure;
2818 last_pic_droppable = s0->droppable;
2819 s->droppable = h->nal_ref_idc == 0;
2820 if (h->sps.frame_mbs_only_flag) {
2821 s->picture_structure = PICT_FRAME;
2822 } else {
2823 if (get_bits1(&s->gb)) { // field_pic_flag
2824 s->picture_structure = PICT_TOP_FIELD + get_bits1(&s->gb); // bottom_field_flag
2825 } else {
2826 s->picture_structure = PICT_FRAME;
2827 h->mb_aff_frame = h->sps.mb_aff;
2828 }
2829 }
2830 h->mb_field_decoding_flag = s->picture_structure != PICT_FRAME;
2831
2832 if (h0->current_slice != 0) {
2833 if (last_pic_structure != s->picture_structure ||
2834 last_pic_droppable != s->droppable) {
2835 av_log(h->s.avctx, AV_LOG_ERROR,
2836 "Changing field mode (%d -> %d) between slices is not allowed\n",
2837 last_pic_structure, s->picture_structure);
2838 s->picture_structure = last_pic_structure;
2839 s->droppable = last_pic_droppable;
2840 return AVERROR_INVALIDDATA;
2841 } else if (!s0->current_picture_ptr) {
2842 av_log(s->avctx, AV_LOG_ERROR,
2843 "unset current_picture_ptr on %d. slice\n",
2844 h0->current_slice + 1);
2845 return AVERROR_INVALIDDATA;
2846 }
2847 } else {
2848 /* Shorten frame num gaps so we don't have to allocate reference
2849 * frames just to throw them away */
2850 if (h->frame_num != h->prev_frame_num) {
2851 int unwrap_prev_frame_num = h->prev_frame_num;
2852 int max_frame_num = 1 << h->sps.log2_max_frame_num;
2853
2854 if (unwrap_prev_frame_num > h->frame_num)
2855 unwrap_prev_frame_num -= max_frame_num;
2856
2857 if ((h->frame_num - unwrap_prev_frame_num) > h->sps.ref_frame_count) {
2858 unwrap_prev_frame_num = (h->frame_num - h->sps.ref_frame_count) - 1;
2859 if (unwrap_prev_frame_num < 0)
2860 unwrap_prev_frame_num += max_frame_num;
2861
2862 h->prev_frame_num = unwrap_prev_frame_num;
2863 }
2864 }
2865
2866 /* See if we have a decoded first field looking for a pair...
2867 * Here, we're using that to see if we should mark previously
2868 * decode frames as "finished".
2869 * We have to do that before the "dummy" in-between frame allocation,
2870 * since that can modify s->current_picture_ptr. */
2871 if (s0->first_field) {
2872 assert(s0->current_picture_ptr);
2873 assert(s0->current_picture_ptr->f.data[0]);
2874 assert(s0->current_picture_ptr->f.reference != DELAYED_PIC_REF);
2875
2876 /* Mark old field/frame as completed */
2877 if (!last_pic_droppable && s0->current_picture_ptr->owner2 == s0) {
2878 ff_thread_report_progress(&s0->current_picture_ptr->f, INT_MAX,
2879 last_pic_structure == PICT_BOTTOM_FIELD);
2880 }
2881
2882 /* figure out if we have a complementary field pair */
2883 if (!FIELD_PICTURE || s->picture_structure == last_pic_structure) {
2884 /* Previous field is unmatched. Don't display it, but let it
2885 * remain for reference if marked as such. */
2886 if (!last_pic_droppable && last_pic_structure != PICT_FRAME) {
2887 ff_thread_report_progress(&s0->current_picture_ptr->f, INT_MAX,
2888 last_pic_structure == PICT_TOP_FIELD);
2889 }
2890 } else {
2891 if (s0->current_picture_ptr->frame_num != h->frame_num) {
2892 /* This and previous field were reference, but had
2893 * different frame_nums. Consider this field first in
2894 * pair. Throw away previous field except for reference
2895 * purposes. */
2896 if (!last_pic_droppable && last_pic_structure != PICT_FRAME) {
2897 ff_thread_report_progress(&s0->current_picture_ptr->f, INT_MAX,
2898 last_pic_structure == PICT_TOP_FIELD);
2899 }
2900 } else {
2901 /* Second field in complementary pair */
2902 if (!((last_pic_structure == PICT_TOP_FIELD &&
2903 s->picture_structure == PICT_BOTTOM_FIELD) ||
2904 (last_pic_structure == PICT_BOTTOM_FIELD &&
2905 s->picture_structure == PICT_TOP_FIELD))) {
2906 av_log(s->avctx, AV_LOG_ERROR,
2907 "Invalid field mode combination %d/%d\n",
2908 last_pic_structure, s->picture_structure);
2909 s->picture_structure = last_pic_structure;
2910 s->droppable = last_pic_droppable;
2911 return AVERROR_INVALIDDATA;
2912 } else if (last_pic_droppable != s->droppable) {
2913 av_log(s->avctx, AV_LOG_ERROR,
2914 "Cannot combine reference and non-reference fields in the same frame\n");
2915 av_log_ask_for_sample(s->avctx, NULL);
2916 s->picture_structure = last_pic_structure;
2917 s->droppable = last_pic_droppable;
2918 return AVERROR_PATCHWELCOME;
2919 }
2920
2921 /* Take ownership of this buffer. Note that if another thread owned
2922 * the first field of this buffer, we're not operating on that pointer,
2923 * so the original thread is still responsible for reporting progress
2924 * on that first field (or if that was us, we just did that above).
2925 * By taking ownership, we assign responsibility to ourselves to
2926 * report progress on the second field. */
2927 s0->current_picture_ptr->owner2 = s0;
2928 }
2929 }
2930 }
2931
2932 while (h->frame_num != h->prev_frame_num &&
2933 h->frame_num != (h->prev_frame_num + 1) % (1 << h->sps.log2_max_frame_num)) {
2934 Picture *prev = h->short_ref_count ? h->short_ref[0] : NULL;
2935 av_log(h->s.avctx, AV_LOG_DEBUG, "Frame num gap %d %d\n",
2936 h->frame_num, h->prev_frame_num);
2937 if (ff_h264_frame_start(h) < 0)
2938 return -1;
2939 h->prev_frame_num++;
2940 h->prev_frame_num %= 1 << h->sps.log2_max_frame_num;
2941 s->current_picture_ptr->frame_num = h->prev_frame_num;
2942 ff_thread_report_progress(&s->current_picture_ptr->f, INT_MAX, 0);
2943 ff_thread_report_progress(&s->current_picture_ptr->f, INT_MAX, 1);
2944 if ((ret = ff_generate_sliding_window_mmcos(h, 1)) < 0 &&
2945 s->avctx->err_recognition & AV_EF_EXPLODE)
2946 return ret;
2947 if (ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index) < 0 &&
2948 (s->avctx->err_recognition & AV_EF_EXPLODE))
2949 return AVERROR_INVALIDDATA;
2950 /* Error concealment: if a ref is missing, copy the previous ref in its place.
2951 * FIXME: avoiding a memcpy would be nice, but ref handling makes many assumptions
2952 * about there being no actual duplicates.
2953 * FIXME: this doesn't copy padding for out-of-frame motion vectors. Given we're
2954 * concealing a lost frame, this probably isn't noticeable by comparison, but it should
2955 * be fixed. */
2956 if (h->short_ref_count) {
2957 if (prev) {
2958 av_image_copy(h->short_ref[0]->f.data, h->short_ref[0]->f.linesize,
2959 (const uint8_t **)prev->f.data, prev->f.linesize,
2960 s->avctx->pix_fmt, s->mb_width * 16, s->mb_height * 16);
2961 h->short_ref[0]->poc = prev->poc + 2;
2962 }
2963 h->short_ref[0]->frame_num = h->prev_frame_num;
2964 }
2965 }
2966
2967 /* See if we have a decoded first field looking for a pair...
2968 * We're using that to see whether to continue decoding in that
2969 * frame, or to allocate a new one. */
2970 if (s0->first_field) {
2971 assert(s0->current_picture_ptr);
2972 assert(s0->current_picture_ptr->f.data[0]);
2973 assert(s0->current_picture_ptr->f.reference != DELAYED_PIC_REF);
2974
2975 /* figure out if we have a complementary field pair */
2976 if (!FIELD_PICTURE || s->picture_structure == last_pic_structure) {
2977 /* Previous field is unmatched. Don't display it, but let it
2978 * remain for reference if marked as such. */
2979 s0->current_picture_ptr = NULL;
2980 s0->first_field = FIELD_PICTURE;
2981 } else {
2982 if (s0->current_picture_ptr->frame_num != h->frame_num) {
2983 /* This and the previous field had different frame_nums.
2984 * Consider this field first in pair. Throw away previous
2985 * one except for reference purposes. */
2986 s0->first_field = 1;
2987 s0->current_picture_ptr = NULL;
2988 } else {
2989 /* Second field in complementary pair */
2990 s0->first_field = 0;
2991 }
2992 }
2993 } else {
2994 /* Frame or first field in a potentially complementary pair */
2995 s0->first_field = FIELD_PICTURE;
2996 }
2997
2998 if (!FIELD_PICTURE || s0->first_field) {
2999 if (ff_h264_frame_start(h) < 0) {
3000 s0->first_field = 0;
3001 return -1;
3002 }
3003 } else {
3004 ff_release_unused_pictures(s, 0);
3005 }
3006 }
3007 if (h != h0 && (ret = clone_slice(h, h0)) < 0)
3008 return ret;
3009
3010 s->current_picture_ptr->frame_num = h->frame_num; // FIXME frame_num cleanup
3011
3012 assert(s->mb_num == s->mb_width * s->mb_height);
3013 if (first_mb_in_slice << FIELD_OR_MBAFF_PICTURE >= s->mb_num ||
3014 first_mb_in_slice >= s->mb_num) {
3015 av_log(h->s.avctx, AV_LOG_ERROR, "first_mb_in_slice overflow\n");
3016 return -1;
3017 }
3018 s->resync_mb_x = s->mb_x = first_mb_in_slice % s->mb_width;
3019 s->resync_mb_y = s->mb_y = (first_mb_in_slice / s->mb_width) << FIELD_OR_MBAFF_PICTURE;
3020 if (s->picture_structure == PICT_BOTTOM_FIELD)
3021 s->resync_mb_y = s->mb_y = s->mb_y + 1;
3022 assert(s->mb_y < s->mb_height);
3023
3024 if (s->picture_structure == PICT_FRAME) {
3025 h->curr_pic_num = h->frame_num;
3026 h->max_pic_num = 1 << h->sps.log2_max_frame_num;
3027 } else {
3028 h->curr_pic_num = 2 * h->frame_num + 1;
3029 h->max_pic_num = 1 << (h->sps.log2_max_frame_num + 1);
3030 }
3031
3032 if (h->nal_unit_type == NAL_IDR_SLICE)
3033 get_ue_golomb(&s->gb); /* idr_pic_id */
3034
3035 if (h->sps.poc_type == 0) {
3036 h->poc_lsb = get_bits(&s->gb, h->sps.log2_max_poc_lsb);
3037
3038 if (h->pps.pic_order_present == 1 && s->picture_structure == PICT_FRAME)
3039 h->delta_poc_bottom = get_se_golomb(&s->gb);
3040 }
3041
3042 if (h->sps.poc_type == 1 && !h->sps.delta_pic_order_always_zero_flag) {
3043 h->delta_poc[0] = get_se_golomb(&s->gb);
3044
3045 if (h->pps.pic_order_present == 1 && s->picture_structure == PICT_FRAME)
3046 h->delta_poc[1] = get_se_golomb(&s->gb);
3047 }
3048
3049 init_poc(h);
3050
3051 if (h->pps.redundant_pic_cnt_present)
3052 h->redundant_pic_count = get_ue_golomb(&s->gb);
3053
3054 // set defaults, might be overridden a few lines later
3055 h->ref_count[0] = h->pps.ref_count[0];
3056 h->ref_count[1] = h->pps.ref_count[1];
3057
3058 if (h->slice_type_nos != AV_PICTURE_TYPE_I) {
3059 if (h->slice_type_nos == AV_PICTURE_TYPE_B)
3060 h->direct_spatial_mv_pred = get_bits1(&s->gb);
3061 num_ref_idx_active_override_flag = get_bits1(&s->gb);
3062
3063 if (num_ref_idx_active_override_flag) {
3064 h->ref_count[0] = get_ue_golomb(&s->gb) + 1;
3065 if (h->ref_count[0] < 1)
3066 return AVERROR_INVALIDDATA;
3067 if (h->slice_type_nos == AV_PICTURE_TYPE_B) {
3068 h->ref_count[1] = get_ue_golomb(&s->gb) + 1;
3069 if (h->ref_count[1] < 1)
3070 return AVERROR_INVALIDDATA;
3071 }
3072 }
3073
3074 if (h->slice_type_nos == AV_PICTURE_TYPE_B)
3075 h->list_count = 2;
3076 else
3077 h->list_count = 1;
3078 } else
3079 h->list_count = 0;
3080
3081 max_refs = s->picture_structure == PICT_FRAME ? 16 : 32;
3082
3083 if (h->ref_count[0] > max_refs || h->ref_count[1] > max_refs) {
3084 av_log(h->s.avctx, AV_LOG_ERROR, "reference overflow\n");
3085 h->ref_count[0] = h->ref_count[1] = 1;
3086 return AVERROR_INVALIDDATA;
3087 }
3088
3089 if (!default_ref_list_done)
3090 ff_h264_fill_default_ref_list(h);
3091
3092 if (h->slice_type_nos != AV_PICTURE_TYPE_I &&
3093 ff_h264_decode_ref_pic_list_reordering(h) < 0) {
3094 h->ref_count[1] = h->ref_count[0] = 0;
3095 return -1;
3096 }
3097
3098 if (h->slice_type_nos != AV_PICTURE_TYPE_I) {
3099 s->last_picture_ptr = &h->ref_list[0][0];
3100 s->last_picture_ptr->owner2 = s;
3101 s->er.last_pic = s->last_picture_ptr;
3102 ff_copy_picture(&s->last_picture, s->last_picture_ptr);
3103 }
3104 if (h->slice_type_nos == AV_PICTURE_TYPE_B) {
3105 s->next_picture_ptr = &h->ref_list[1][0];
3106 s->next_picture_ptr->owner2 = s;
3107 s->er.next_pic = s->next_picture_ptr;
3108 ff_copy_picture(&s->next_picture, s->next_picture_ptr);
3109 }
3110
3111 if ((h->pps.weighted_pred && h->slice_type_nos == AV_PICTURE_TYPE_P) ||
3112 (h->pps.weighted_bipred_idc == 1 &&
3113 h->slice_type_nos == AV_PICTURE_TYPE_B))
3114 pred_weight_table(h);
3115 else if (h->pps.weighted_bipred_idc == 2 &&
3116 h->slice_type_nos == AV_PICTURE_TYPE_B) {
3117 implicit_weight_table(h, -1);
3118 } else {
3119 h->use_weight = 0;
3120 for (i = 0; i < 2; i++) {
3121 h->luma_weight_flag[i] = 0;
3122 h->chroma_weight_flag[i] = 0;
3123 }
3124 }
3125
3126 // If frame-mt is enabled, only update mmco tables for the first slice
3127 // in a field. Subsequent slices can temporarily clobber h->mmco_index
3128 // or h->mmco, which will cause ref list mix-ups and decoding errors
3129 // further down the line. This may break decoding if the first slice is
3130 // corrupt, thus we only do this if frame-mt is enabled.
3131 if (h->nal_ref_idc &&
3132 ff_h264_decode_ref_pic_marking(h0, &s->gb,
3133 !(s->avctx->active_thread_type & FF_THREAD_FRAME) ||
3134 h0->current_slice == 0) < 0 &&
3135 (s->avctx->err_recognition & AV_EF_EXPLODE))
3136 return AVERROR_INVALIDDATA;
3137
3138 if (FRAME_MBAFF) {
3139 ff_h264_fill_mbaff_ref_list(h);
3140
3141 if (h->pps.weighted_bipred_idc == 2 && h->slice_type_nos == AV_PICTURE_TYPE_B) {
3142 implicit_weight_table(h, 0);
3143 implicit_weight_table(h, 1);
3144 }
3145 }
3146
3147 if (h->slice_type_nos == AV_PICTURE_TYPE_B && !h->direct_spatial_mv_pred)
3148 ff_h264_direct_dist_scale_factor(h);
3149 ff_h264_direct_ref_list_init(h);
3150
3151 if (h->slice_type_nos != AV_PICTURE_TYPE_I && h->pps.cabac) {
3152 tmp = get_ue_golomb_31(&s->gb);
3153 if (tmp > 2) {
3154 av_log(s->avctx, AV_LOG_ERROR, "cabac_init_idc overflow\n");
3155 return -1;
3156 }
3157 h->cabac_init_idc = tmp;
3158 }
3159
3160 h->last_qscale_diff = 0;
3161 tmp = h->pps.init_qp + get_se_golomb(&s->gb);
3162 if (tmp > 51 + 6 * (h->sps.bit_depth_luma - 8)) {
3163 av_log(s->avctx, AV_LOG_ERROR, "QP %u out of range\n", tmp);
3164 return -1;
3165 }
3166 s->qscale = tmp;
3167 h->chroma_qp[0] = get_chroma_qp(h, 0, s->qscale);
3168 h->chroma_qp[1] = get_chroma_qp(h, 1, s->qscale);
3169 // FIXME qscale / qp ... stuff
3170 if (h->slice_type == AV_PICTURE_TYPE_SP)
3171 get_bits1(&s->gb); /* sp_for_switch_flag */
3172 if (h->slice_type == AV_PICTURE_TYPE_SP ||
3173 h->slice_type == AV_PICTURE_TYPE_SI)
3174 get_se_golomb(&s->gb); /* slice_qs_delta */
3175
3176 h->deblocking_filter = 1;
3177 h->slice_alpha_c0_offset = 52;
3178 h->slice_beta_offset = 52;
3179 if (h->pps.deblocking_filter_parameters_present) {
3180 tmp = get_ue_golomb_31(&s->gb);
3181 if (tmp > 2) {
3182 av_log(s->avctx, AV_LOG_ERROR,
3183 "deblocking_filter_idc %u out of range\n", tmp);
3184 return -1;
3185 }
3186 h->deblocking_filter = tmp;
3187 if (h->deblocking_filter < 2)
3188 h->deblocking_filter ^= 1; // 1<->0
3189
3190 if (h->deblocking_filter) {
3191 h->slice_alpha_c0_offset += get_se_golomb(&s->gb) << 1;
3192 h->slice_beta_offset += get_se_golomb(&s->gb) << 1;
3193 if (h->slice_alpha_c0_offset > 104U ||
3194 h->slice_beta_offset > 104U) {
3195 av_log(s->avctx, AV_LOG_ERROR,
3196 "deblocking filter parameters %d %d out of range\n",
3197 h->slice_alpha_c0_offset, h->slice_beta_offset);
3198 return -1;
3199 }
3200 }
3201 }
3202
3203 if (s->avctx->skip_loop_filter >= AVDISCARD_ALL ||
3204 (s->avctx->skip_loop_filter >= AVDISCARD_NONKEY &&
3205 h->slice_type_nos != AV_PICTURE_TYPE_I) ||
3206 (s->avctx->skip_loop_filter >= AVDISCARD_BIDIR &&
3207 h->slice_type_nos == AV_PICTURE_TYPE_B) ||
3208 (s->avctx->skip_loop_filter >= AVDISCARD_NONREF &&
3209 h->nal_ref_idc == 0))
3210 h->deblocking_filter = 0;
3211
3212 if (h->deblocking_filter == 1 && h0->max_contexts > 1) {
3213 if (s->avctx->flags2 & CODEC_FLAG2_FAST) {
3214 /* Cheat slightly for speed:
3215 * Do not bother to deblock across slices. */
3216 h->deblocking_filter = 2;
3217 } else {
3218 h0->max_contexts = 1;
3219 if (!h0->single_decode_warning) {
3220 av_log(s->avctx, AV_LOG_INFO,
3221 "Cannot parallelize deblocking type 1, decoding such frames in sequential order\n");
3222 h0->single_decode_warning = 1;
3223 }
3224 if (h != h0) {
3225 av_log(h->s.avctx, AV_LOG_ERROR,
3226 "Deblocking switched inside frame.\n");
3227 return 1;
3228 }
3229 }
3230 }
3231 h->qp_thresh = 15 + 52 -
3232 FFMIN(h->slice_alpha_c0_offset, h->slice_beta_offset) -
3233 FFMAX3(0,
3234 h->pps.chroma_qp_index_offset[0],
3235 h->pps.chroma_qp_index_offset[1]) +
3236 6 * (h->sps.bit_depth_luma - 8);
3237
3238 h0->last_slice_type = slice_type;
3239 h->slice_num = ++h0->current_slice;
3240 if (h->slice_num >= MAX_SLICES) {
3241 av_log(s->avctx, AV_LOG_ERROR,
3242 "Too many slices, increase MAX_SLICES and recompile\n");
3243 }
3244
3245 for (j = 0; j < 2; j++) {
3246 int id_list[16];
3247 int *ref2frm = h->ref2frm[h->slice_num & (MAX_SLICES - 1)][j];
3248 for (i = 0; i < 16; i++) {
3249 id_list[i] = 60;
3250 if (h->ref_list[j][i].f.data[0]) {
3251 int k;
3252 uint8_t *base = h->ref_list[j][i].f.base[0];
3253 for (k = 0; k < h->short_ref_count; k++)
3254 if (h->short_ref[k]->f.base[0] == base) {
3255 id_list[i] = k;
3256 break;
3257 }
3258 for (k = 0; k < h->long_ref_count; k++)
3259 if (h->long_ref[k] && h->long_ref[k]->f.base[0] == base) {
3260 id_list[i] = h->short_ref_count + k;
3261 break;
3262 }
3263 }
3264 }
3265
3266 ref2frm[0] =
3267 ref2frm[1] = -1;
3268 for (i = 0; i < 16; i++)
3269 ref2frm[i + 2] = 4 * id_list[i] +
3270 (h->ref_list[j][i].f.reference & 3);
3271 ref2frm[18 + 0] =
3272 ref2frm[18 + 1] = -1;
3273 for (i = 16; i < 48; i++)
3274 ref2frm[i + 4] = 4 * id_list[(i - 16) >> 1] +
3275 (h->ref_list[j][i].f.reference & 3);
3276 }
3277
3278 // FIXME: fix draw_edges + PAFF + frame threads
3279 h->emu_edge_width = (s->flags & CODEC_FLAG_EMU_EDGE ||
3280 (!h->sps.frame_mbs_only_flag &&
3281 s->avctx->active_thread_type))
3282 ? 0 : 16;
3283 h->emu_edge_height = (FRAME_MBAFF || FIELD_PICTURE) ? 0 : h->emu_edge_width;
3284
3285 if (s->avctx->debug & FF_DEBUG_PICT_INFO) {
3286 av_log(h->s.avctx, AV_LOG_DEBUG,
3287 "slice:%d %s mb:%d %c%s%s pps:%u frame:%d poc:%d/%d ref:%d/%d qp:%d loop:%d:%d:%d weight:%d%s %s\n",
3288 h->slice_num,
3289 (s->picture_structure == PICT_FRAME ? "F" : s->picture_structure == PICT_TOP_FIELD ? "T" : "B"),
3290 first_mb_in_slice,
3291 av_get_picture_type_char(h->slice_type),
3292 h->slice_type_fixed ? " fix" : "",
3293 h->nal_unit_type == NAL_IDR_SLICE ? " IDR" : "",
3294 pps_id, h->frame_num,
3295 s->current_picture_ptr->field_poc[0],
3296 s->current_picture_ptr->field_poc[1],
3297 h->ref_count[0], h->ref_count[1],
3298 s->qscale,
3299 h->deblocking_filter,
3300 h->slice_alpha_c0_offset / 2 - 26, h->slice_beta_offset / 2 - 26,
3301 h->use_weight,
3302 h->use_weight == 1 && h->use_weight_chroma ? "c" : "",
3303 h->slice_type == A