ff_get_buffer(): allocate the frame for max(coded,display) dimensions
[libav.git] / libavcodec / h264.c
CommitLineData
0da71265 1/*
ff3d4310 2 * H.26L/H.264/AVC/JVT/14496-10/... decoder
0da71265
MN
3 * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
4 *
2912e87a 5 * This file is part of Libav.
b78e7197 6 *
2912e87a 7 * Libav is free software; you can redistribute it and/or
0da71265
MN
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
b78e7197 10 * version 2.1 of the License, or (at your option) any later version.
0da71265 11 *
2912e87a 12 * Libav is distributed in the hope that it will be useful,
0da71265
MN
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
2912e87a 18 * License along with Libav; if not, write to the Free Software
5509bffa 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
0da71265 20 */
115329f1 21
0da71265 22/**
ba87f080 23 * @file
0da71265
MN
24 * H.264 / AVC / MPEG4 part10 codec.
25 * @author Michael Niedermayer <michaelni@gmx.at>
26 */
27
737eb597 28#include "libavutil/imgutils.h"
40e5d31b 29#include "internal.h"
55b9ef18
DB
30#include "cabac.h"
31#include "cabac_functions.h"
0da71265 32#include "dsputil.h"
5f401b7b 33#include "error_resilience.h"
0da71265
MN
34#include "avcodec.h"
35#include "mpegvideo.h"
26b4fe82 36#include "h264.h"
0da71265 37#include "h264data.h"
79dad2a9 38#include "h264chroma.h"
188d3c51 39#include "h264_mvpred.h"
0da71265 40#include "golomb.h"
199436b9 41#include "mathops.h"
626464fb 42#include "rectangle.h"
75d5156a 43#include "svq3.h"
6a9c8594 44#include "thread.h"
369122dd 45#include "vdpau_internal.h"
cfa5a81e 46#include "libavutil/avassert.h"
0da71265 47
e5d40372 48// #undef NDEBUG
0da71265
MN
49#include <assert.h>
50
0becb078
DB
51const uint16_t ff_h264_mb_sizes[4] = { 256, 384, 512, 768 };
52
e5d40372
DB
53static const uint8_t rem6[QP_MAX_NUM + 1] = {
54 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2,
55 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5,
56 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3,
acd8d10f
PI
57};
58
e5d40372
DB
59static const uint8_t div6[QP_MAX_NUM + 1] = {
60 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3,
61 3, 3, 3, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6,
62 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10,
acd8d10f
PI
63};
64
8d061989
RB
65static const enum AVPixelFormat h264_hwaccel_pixfmt_list_420[] = {
66#if CONFIG_H264_DXVA2_HWACCEL
67 AV_PIX_FMT_DXVA2_VLD,
68#endif
69#if CONFIG_H264_VAAPI_HWACCEL
70 AV_PIX_FMT_VAAPI_VLD,
71#endif
72#if CONFIG_H264_VDA_HWACCEL
73 AV_PIX_FMT_VDA_VLD,
74#endif
75#if CONFIG_H264_VDPAU_HWACCEL
76 AV_PIX_FMT_VDPAU,
77#endif
78 AV_PIX_FMT_YUV420P,
79 AV_PIX_FMT_NONE
80};
81
d65522e8 82static const enum AVPixelFormat h264_hwaccel_pixfmt_list_jpeg_420[] = {
78bc4d69 83#if CONFIG_H264_DXVA2_HWACCEL
716d413c 84 AV_PIX_FMT_DXVA2_VLD,
78bc4d69
RDC
85#endif
86#if CONFIG_H264_VAAPI_HWACCEL
716d413c 87 AV_PIX_FMT_VAAPI_VLD,
78bc4d69
RDC
88#endif
89#if CONFIG_H264_VDA_HWACCEL
716d413c 90 AV_PIX_FMT_VDA_VLD,
78bc4d69
RDC
91#endif
92#if CONFIG_H264_VDPAU_HWACCEL
ec0e9200 93 AV_PIX_FMT_VDPAU,
78bc4d69 94#endif
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AK
95 AV_PIX_FMT_YUVJ420P,
96 AV_PIX_FMT_NONE
0435fb16
BC
97};
98
54974c62
AK
99static void h264_er_decode_mb(void *opaque, int ref, int mv_dir, int mv_type,
100 int (*mv)[2][4][2],
101 int mb_x, int mb_y, int mb_intra, int mb_skipped)
102{
103 H264Context *h = opaque;
54974c62 104
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AK
105 h->mb_x = mb_x;
106 h->mb_y = mb_y;
107 h->mb_xy = mb_x + mb_y * h->mb_stride;
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108 memset(h->non_zero_count_cache, 0, sizeof(h->non_zero_count_cache));
109 assert(ref >= 0);
110 /* FIXME: It is possible albeit uncommon that slice references
111 * differ between slices. We take the easy approach and ignore
112 * it for now. If this turns out to have any relevance in
113 * practice then correct remapping should be added. */
114 if (ref >= h->ref_count[0])
115 ref = 0;
759001c5 116 fill_rectangle(&h->cur_pic.ref_index[0][4 * h->mb_xy],
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AK
117 2, 2, 2, ref, 1);
118 fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, ref, 1);
119 fill_rectangle(h->mv_cache[0][scan8[0]], 4, 4, 8,
2c541554 120 pack16to32((*mv)[0][0][0], (*mv)[0][0][1]), 4);
7bece9b2 121 assert(!FRAME_MBAFF(h));
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AK
122 ff_h264_hl_decode_mb(h);
123}
124
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AK
125void ff_h264_draw_horiz_band(H264Context *h, int y, int height)
126{
64e43869
RB
127 AVCodecContext *avctx = h->avctx;
128 Picture *cur = &h->cur_pic;
129 Picture *last = h->ref_list[0][0].f.data[0] ? &h->ref_list[0][0] : NULL;
130 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
131 int vshift = desc->log2_chroma_h;
132 const int field_pic = h->picture_structure != PICT_FRAME;
133 if (field_pic) {
134 height <<= 1;
135 y <<= 1;
136 }
137
138 height = FFMIN(height, avctx->height - y);
139
140 if (field_pic && h->first_field && !(avctx->slice_flags & SLICE_FLAG_ALLOW_FIELD))
141 return;
142
143 if (avctx->draw_horiz_band) {
144 AVFrame *src;
145 int offset[AV_NUM_DATA_POINTERS];
146 int i;
147
148 if (cur->f.pict_type == AV_PICTURE_TYPE_B || h->low_delay ||
149 (avctx->slice_flags & SLICE_FLAG_CODED_ORDER))
150 src = &cur->f;
151 else if (last)
152 src = &last->f;
153 else
154 return;
155
156 offset[0] = y * src->linesize[0];
157 offset[1] =
158 offset[2] = (y >> vshift) * src->linesize[1];
159 for (i = 3; i < AV_NUM_DATA_POINTERS; i++)
160 offset[i] = 0;
161
162 emms_c();
163
164 avctx->draw_horiz_band(avctx, src, offset,
165 y, h->picture_structure, height);
166 }
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AK
167}
168
759001c5 169static void unref_picture(H264Context *h, Picture *pic)
2c541554 170{
759001c5 171 int off = offsetof(Picture, tf) + sizeof(pic->tf);
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AK
172 int i;
173
759001c5
AK
174 if (!pic->f.data[0])
175 return;
176
177 ff_thread_release_buffer(h->avctx, &pic->tf);
178 av_buffer_unref(&pic->hwaccel_priv_buf);
2c541554 179
759001c5
AK
180 av_buffer_unref(&pic->qscale_table_buf);
181 av_buffer_unref(&pic->mb_type_buf);
2c541554 182 for (i = 0; i < 2; i++) {
759001c5
AK
183 av_buffer_unref(&pic->motion_val_buf[i]);
184 av_buffer_unref(&pic->ref_index_buf[i]);
2c541554 185 }
759001c5
AK
186
187 memset((uint8_t*)pic + off, 0, sizeof(*pic) - off);
2c541554
AK
188}
189
190static void release_unused_pictures(H264Context *h, int remove_current)
191{
192 int i;
193
194 /* release non reference frames */
759001c5
AK
195 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
196 if (h->DPB[i].f.data[0] && !h->DPB[i].reference &&
2c541554 197 (remove_current || &h->DPB[i] != h->cur_pic_ptr)) {
759001c5 198 unref_picture(h, &h->DPB[i]);
2c541554
AK
199 }
200 }
201}
202
759001c5
AK
203static int ref_picture(H264Context *h, Picture *dst, Picture *src)
204{
205 int ret, i;
206
207 av_assert0(!dst->f.buf[0]);
208 av_assert0(src->f.buf[0]);
209
210 src->tf.f = &src->f;
211 dst->tf.f = &dst->f;
212 ret = ff_thread_ref_frame(&dst->tf, &src->tf);
213 if (ret < 0)
214 goto fail;
215
216
217 dst->qscale_table_buf = av_buffer_ref(src->qscale_table_buf);
218 dst->mb_type_buf = av_buffer_ref(src->mb_type_buf);
219 if (!dst->qscale_table_buf || !dst->mb_type_buf)
220 goto fail;
221 dst->qscale_table = src->qscale_table;
222 dst->mb_type = src->mb_type;
223
224 for (i = 0; i < 2; i ++) {
225 dst->motion_val_buf[i] = av_buffer_ref(src->motion_val_buf[i]);
226 dst->ref_index_buf[i] = av_buffer_ref(src->ref_index_buf[i]);
227 if (!dst->motion_val_buf[i] || !dst->ref_index_buf[i])
228 goto fail;
229 dst->motion_val[i] = src->motion_val[i];
230 dst->ref_index[i] = src->ref_index[i];
231 }
232
233 if (src->hwaccel_picture_private) {
234 dst->hwaccel_priv_buf = av_buffer_ref(src->hwaccel_priv_buf);
235 if (!dst->hwaccel_priv_buf)
236 goto fail;
237 dst->hwaccel_picture_private = dst->hwaccel_priv_buf->data;
238 }
239
240 for (i = 0; i < 2; i++)
241 dst->field_poc[i] = src->field_poc[i];
242
243 memcpy(dst->ref_poc, src->ref_poc, sizeof(src->ref_poc));
244 memcpy(dst->ref_count, src->ref_count, sizeof(src->ref_count));
245
246 dst->poc = src->poc;
247 dst->frame_num = src->frame_num;
248 dst->mmco_reset = src->mmco_reset;
249 dst->pic_id = src->pic_id;
250 dst->long_ref = src->long_ref;
251 dst->mbaff = src->mbaff;
252 dst->field_picture = src->field_picture;
253 dst->needs_realloc = src->needs_realloc;
254 dst->reference = src->reference;
255
256 return 0;
257fail:
258 unref_picture(h, dst);
259 return ret;
260}
261
262
2c541554
AK
263static int alloc_scratch_buffers(H264Context *h, int linesize)
264{
265 int alloc_size = FFALIGN(FFABS(linesize) + 32, 32);
266
267 if (h->bipred_scratchpad)
268 return 0;
269
270 h->bipred_scratchpad = av_malloc(16 * 6 * alloc_size);
271 // edge emu needs blocksize + filter length - 1
272 // (= 21x21 for h264)
273 h->edge_emu_buffer = av_mallocz(alloc_size * 2 * 21);
274 h->me.scratchpad = av_mallocz(alloc_size * 2 * 16 * 2);
275
276 if (!h->bipred_scratchpad || !h->edge_emu_buffer || !h->me.scratchpad) {
277 av_freep(&h->bipred_scratchpad);
278 av_freep(&h->edge_emu_buffer);
279 av_freep(&h->me.scratchpad);
280 return AVERROR(ENOMEM);
281 }
282
283 h->me.temp = h->me.scratchpad;
284
285 return 0;
286}
287
759001c5 288static int init_table_pools(H264Context *h)
2c541554
AK
289{
290 const int big_mb_num = h->mb_stride * (h->mb_height + 1) + 1;
291 const int mb_array_size = h->mb_stride * h->mb_height;
292 const int b4_stride = h->mb_width * 4 + 1;
293 const int b4_array_size = b4_stride * h->mb_height * 4;
759001c5
AK
294
295 h->qscale_table_pool = av_buffer_pool_init(big_mb_num + h->mb_stride,
296 av_buffer_allocz);
297 h->mb_type_pool = av_buffer_pool_init((big_mb_num + h->mb_stride) *
298 sizeof(uint32_t), av_buffer_allocz);
299 h->motion_val_pool = av_buffer_pool_init(2 * (b4_array_size + 4) *
300 sizeof(int16_t), av_buffer_allocz);
301 h->ref_index_pool = av_buffer_pool_init(4 * mb_array_size, av_buffer_allocz);
302
303 if (!h->qscale_table_pool || !h->mb_type_pool || !h->motion_val_pool ||
304 !h->ref_index_pool) {
305 av_buffer_pool_uninit(&h->qscale_table_pool);
306 av_buffer_pool_uninit(&h->mb_type_pool);
307 av_buffer_pool_uninit(&h->motion_val_pool);
308 av_buffer_pool_uninit(&h->ref_index_pool);
309 return AVERROR(ENOMEM);
310 }
311
312 return 0;
313}
314
315static int alloc_picture(H264Context *h, Picture *pic)
316{
2c541554
AK
317 int i, ret = 0;
318
319 av_assert0(!pic->f.data[0]);
320
9c9ede44
HL
321 pic->tf.f = &pic->f;
322 ret = ff_thread_get_buffer(h->avctx, &pic->tf, pic->reference ?
323 AV_GET_BUFFER_FLAG_REF : 0);
324 if (ret < 0)
325 goto fail;
326
327 h->linesize = pic->f.linesize[0];
328 h->uvlinesize = pic->f.linesize[1];
329
2c541554
AK
330 if (h->avctx->hwaccel) {
331 const AVHWAccel *hwaccel = h->avctx->hwaccel;
759001c5 332 av_assert0(!pic->hwaccel_picture_private);
2c541554 333 if (hwaccel->priv_data_size) {
759001c5
AK
334 pic->hwaccel_priv_buf = av_buffer_allocz(hwaccel->priv_data_size);
335 if (!pic->hwaccel_priv_buf)
2c541554 336 return AVERROR(ENOMEM);
759001c5 337 pic->hwaccel_picture_private = pic->hwaccel_priv_buf->data;
2c541554
AK
338 }
339 }
2c541554 340
759001c5
AK
341 if (!h->qscale_table_pool) {
342 ret = init_table_pools(h);
343 if (ret < 0)
344 goto fail;
345 }
2c541554 346
759001c5
AK
347 pic->qscale_table_buf = av_buffer_pool_get(h->qscale_table_pool);
348 pic->mb_type_buf = av_buffer_pool_get(h->mb_type_pool);
349 if (!pic->qscale_table_buf || !pic->mb_type_buf)
350 goto fail;
2c541554 351
759001c5
AK
352 pic->mb_type = (uint32_t*)pic->mb_type_buf->data + 2 * h->mb_stride + 1;
353 pic->qscale_table = pic->qscale_table_buf->data + 2 * h->mb_stride + 1;
354
355 for (i = 0; i < 2; i++) {
356 pic->motion_val_buf[i] = av_buffer_pool_get(h->motion_val_pool);
357 pic->ref_index_buf[i] = av_buffer_pool_get(h->ref_index_pool);
358 if (!pic->motion_val_buf[i] || !pic->ref_index_buf[i])
359 goto fail;
2c541554 360
759001c5
AK
361 pic->motion_val[i] = (int16_t (*)[2])pic->motion_val_buf[i]->data + 4;
362 pic->ref_index[i] = pic->ref_index_buf[i]->data;
363 }
2c541554
AK
364
365 return 0;
366fail:
759001c5 367 unref_picture(h, pic);
2c541554
AK
368 return (ret < 0) ? ret : AVERROR(ENOMEM);
369}
370
371static inline int pic_is_unused(H264Context *h, Picture *pic)
372{
373 if (pic->f.data[0] == NULL)
374 return 1;
759001c5
AK
375 if (pic->needs_realloc && !(pic->reference & DELAYED_PIC_REF))
376 return 1;
2c541554
AK
377 return 0;
378}
379
380static int find_unused_picture(H264Context *h)
381{
382 int i;
383
759001c5 384 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
2c541554
AK
385 if (pic_is_unused(h, &h->DPB[i]))
386 break;
387 }
759001c5 388 if (i == MAX_PICTURE_COUNT)
2c541554
AK
389 return AVERROR_INVALIDDATA;
390
391 if (h->DPB[i].needs_realloc) {
392 h->DPB[i].needs_realloc = 0;
759001c5 393 unref_picture(h, &h->DPB[i]);
2c541554
AK
394 }
395
396 return i;
397}
398
0da71265 399/**
58c42af7
DB
400 * Check if the top & left blocks are available if needed and
401 * change the dc mode so it only uses the available blocks.
0da71265 402 */
e5d40372
DB
403int ff_h264_check_intra4x4_pred_mode(H264Context *h)
404{
e5d40372
DB
405 static const int8_t top[12] = {
406 -1, 0, LEFT_DC_PRED, -1, -1, -1, -1, -1, 0
407 };
408 static const int8_t left[12] = {
409 0, -1, TOP_DC_PRED, 0, -1, -1, -1, 0, -1, DC_128_PRED
410 };
2bedc0e8
MN
411 int i;
412
e5d40372
DB
413 if (!(h->top_samples_available & 0x8000)) {
414 for (i = 0; i < 4; i++) {
415 int status = top[h->intra4x4_pred_mode_cache[scan8[0] + i]];
416 if (status < 0) {
2c541554 417 av_log(h->avctx, AV_LOG_ERROR,
e5d40372 418 "top block unavailable for requested intra4x4 mode %d at %d %d\n",
2c541554 419 status, h->mb_x, h->mb_y);
2bedc0e8 420 return -1;
e5d40372
DB
421 } else if (status) {
422 h->intra4x4_pred_mode_cache[scan8[0] + i] = status;
2bedc0e8
MN
423 }
424 }
425 }
426
e5d40372
DB
427 if ((h->left_samples_available & 0x8888) != 0x8888) {
428 static const int mask[4] = { 0x8000, 0x2000, 0x80, 0x20 };
429 for (i = 0; i < 4; i++)
430 if (!(h->left_samples_available & mask[i])) {
431 int status = left[h->intra4x4_pred_mode_cache[scan8[0] + 8 * i]];
432 if (status < 0) {
2c541554 433 av_log(h->avctx, AV_LOG_ERROR,
e5d40372 434 "left block unavailable for requested intra4x4 mode %d at %d %d\n",
2c541554 435 status, h->mb_x, h->mb_y);
2bedc0e8 436 return -1;
e5d40372
DB
437 } else if (status) {
438 h->intra4x4_pred_mode_cache[scan8[0] + 8 * i] = status;
2bedc0e8
MN
439 }
440 }
2bedc0e8
MN
441 }
442
443 return 0;
e5d40372 444} // FIXME cleanup like ff_h264_check_intra_pred_mode
2bedc0e8
MN
445
446/**
58c42af7
DB
447 * Check if the top & left blocks are available if needed and
448 * change the dc mode so it only uses the available blocks.
2bedc0e8 449 */
e5d40372
DB
450int ff_h264_check_intra_pred_mode(H264Context *h, int mode, int is_chroma)
451{
e5d40372
DB
452 static const int8_t top[7] = { LEFT_DC_PRED8x8, 1, -1, -1 };
453 static const int8_t left[7] = { TOP_DC_PRED8x8, -1, 2, -1, DC_128_PRED8x8 };
454
455 if (mode > 6U) {
2c541554 456 av_log(h->avctx, AV_LOG_ERROR,
e5d40372 457 "out of range intra chroma pred mode at %d %d\n",
2c541554 458 h->mb_x, h->mb_y);
7440fe83 459 return -1;
5175b937 460 }
115329f1 461
e5d40372
DB
462 if (!(h->top_samples_available & 0x8000)) {
463 mode = top[mode];
464 if (mode < 0) {
2c541554 465 av_log(h->avctx, AV_LOG_ERROR,
e5d40372 466 "top block unavailable for requested intra mode at %d %d\n",
2c541554 467 h->mb_x, h->mb_y);
0da71265
MN
468 return -1;
469 }
470 }
115329f1 471
e5d40372
DB
472 if ((h->left_samples_available & 0x8080) != 0x8080) {
473 mode = left[mode];
474 if (is_chroma && (h->left_samples_available & 0x8080)) {
475 // mad cow disease mode, aka MBAFF + constrained_intra_pred
476 mode = ALZHEIMER_DC_L0T_PRED8x8 +
477 (!(h->left_samples_available & 0x8000)) +
478 2 * (mode == DC_128_PRED8x8);
d1d10e91 479 }
e5d40372 480 if (mode < 0) {
2c541554 481 av_log(h->avctx, AV_LOG_ERROR,
e5d40372 482 "left block unavailable for requested intra mode at %d %d\n",
2c541554 483 h->mb_x, h->mb_y);
0da71265 484 return -1;
115329f1 485 }
0da71265
MN
486 }
487
488 return mode;
489}
490
e5d40372
DB
491const uint8_t *ff_h264_decode_nal(H264Context *h, const uint8_t *src,
492 int *dst_length, int *consumed, int length)
493{
0da71265
MN
494 int i, si, di;
495 uint8_t *dst;
24456882 496 int bufidx;
0da71265 497
e5d40372
DB
498 // src[0]&0x80; // forbidden bit
499 h->nal_ref_idc = src[0] >> 5;
500 h->nal_unit_type = src[0] & 0x1F;
0da71265 501
e5d40372
DB
502 src++;
503 length--;
e08715d3 504
58db34aa
RB
505#define STARTCODE_TEST \
506 if (i + 2 < length && src[i + 1] == 0 && src[i + 2] <= 3) { \
507 if (src[i + 2] != 3) { \
508 /* startcode, so we must be past the end */ \
509 length = i; \
510 } \
511 break; \
512 }
b250f9c6 513#if HAVE_FAST_UNALIGNED
58db34aa
RB
514#define FIND_FIRST_ZERO \
515 if (i > 0 && !src[i]) \
516 i--; \
517 while (src[i]) \
518 i++
e5d40372 519#if HAVE_FAST_64BIT
e5d40372
DB
520 for (i = 0; i + 1 < length; i += 9) {
521 if (!((~AV_RN64A(src + i) &
522 (AV_RN64A(src + i) - 0x0100010001000101ULL)) &
523 0x8000800080008080ULL))
58db34aa
RB
524 continue;
525 FIND_FIRST_ZERO;
526 STARTCODE_TEST;
527 i -= 7;
528 }
e5d40372 529#else
e5d40372
DB
530 for (i = 0; i + 1 < length; i += 5) {
531 if (!((~AV_RN32A(src + i) &
532 (AV_RN32A(src + i) - 0x01000101U)) &
533 0x80008080U))
e08715d3 534 continue;
58db34aa
RB
535 FIND_FIRST_ZERO;
536 STARTCODE_TEST;
537 i -= 3;
538 }
539#endif
e08715d3 540#else
e5d40372
DB
541 for (i = 0; i + 1 < length; i += 2) {
542 if (src[i])
543 continue;
544 if (i > 0 && src[i - 1] == 0)
545 i--;
58db34aa 546 STARTCODE_TEST;
0da71265 547 }
58db34aa 548#endif
0da71265 549
e5d40372
DB
550 if (i >= length - 1) { // no escaped 0
551 *dst_length = length;
552 *consumed = length + 1; // +1 for the header
115329f1 553 return src;
0da71265
MN
554 }
555
e5d40372
DB
556 // use second escape buffer for inter data
557 bufidx = h->nal_unit_type == NAL_DPC ? 1 : 0;
558 av_fast_malloc(&h->rbsp_buffer[bufidx], &h->rbsp_buffer_size[bufidx],
559 length + FF_INPUT_BUFFER_PADDING_SIZE);
560 dst = h->rbsp_buffer[bufidx];
0da71265 561
e5d40372 562 if (dst == NULL)
ac658be5 563 return NULL;
ac658be5 564
593af7cd 565 memcpy(dst, src, i);
e5d40372
DB
566 si = di = i;
567 while (si + 2 < length) {
568 // remove escapes (very rare 1:2^22)
569 if (src[si + 2] > 3) {
570 dst[di++] = src[si++];
571 dst[di++] = src[si++];
572 } else if (src[si] == 0 && src[si + 1] == 0) {
573 if (src[si + 2] == 3) { // escape
574 dst[di++] = 0;
575 dst[di++] = 0;
576 si += 3;
c8470cc1 577 continue;
e5d40372 578 } else // next start code
593af7cd 579 goto nsc;
0da71265
MN
580 }
581
e5d40372 582 dst[di++] = src[si++];
0da71265 583 }
e5d40372
DB
584 while (si < length)
585 dst[di++] = src[si++];
593af7cd 586nsc:
0da71265 587
e5d40372 588 memset(dst + di, 0, FF_INPUT_BUFFER_PADDING_SIZE);
d4369630 589
e5d40372
DB
590 *dst_length = di;
591 *consumed = si + 1; // +1 for the header
592 /* FIXME store exact number of bits in the getbitcontext
593 * (it is needed for decoding) */
0da71265
MN
594 return dst;
595}
596
85297319
DEP
597/**
598 * Identify the exact end of the bitstream
599 * @return the length of the trailing, or 0 if damaged
600 */
b691fd7a 601static int decode_rbsp_trailing(H264Context *h, const uint8_t *src)
e5d40372
DB
602{
603 int v = *src;
0da71265
MN
604 int r;
605
2c541554 606 tprintf(h->avctx, "rbsp trailing %X\n", v);
0da71265 607
e5d40372
DB
608 for (r = 1; r < 9; r++) {
609 if (v & 1)
610 return r;
611 v >>= 1;
0da71265
MN
612 }
613 return 0;
614}
615
e5d40372
DB
616static inline int get_lowest_part_list_y(H264Context *h, Picture *pic, int n,
617 int height, int y_offset, int list)
618{
619 int raw_my = h->mv_cache[list][scan8[n]][1];
fb845ffd
RB
620 int filter_height_up = (raw_my & 3) ? 2 : 0;
621 int filter_height_down = (raw_my & 3) ? 3 : 0;
e5d40372 622 int full_my = (raw_my >> 2) + y_offset;
fb845ffd
RB
623 int top = full_my - filter_height_up;
624 int bottom = full_my + filter_height_down + height;
6a9c8594
AS
625
626 return FFMAX(abs(top), bottom);
627}
628
e5d40372
DB
629static inline void get_lowest_part_y(H264Context *h, int refs[2][48], int n,
630 int height, int y_offset, int list0,
631 int list1, int *nrefs)
632{
6a9c8594
AS
633 int my;
634
da6be8fc 635 y_offset += 16 * (h->mb_y >> MB_FIELD(h));
6a9c8594 636
e5d40372
DB
637 if (list0) {
638 int ref_n = h->ref_cache[0][scan8[n]];
639 Picture *ref = &h->ref_list[0][ref_n];
6a9c8594
AS
640
641 // Error resilience puts the current picture in the ref list.
642 // Don't try to wait on these as it will cause a deadlock.
643 // Fields can wait on each other, though.
759001c5
AK
644 if (ref->tf.progress->data != h->cur_pic.tf.progress->data ||
645 (ref->reference & 3) != h->picture_structure) {
6a9c8594 646 my = get_lowest_part_list_y(h, ref, n, height, y_offset, 0);
e5d40372
DB
647 if (refs[0][ref_n] < 0)
648 nrefs[0] += 1;
6a9c8594
AS
649 refs[0][ref_n] = FFMAX(refs[0][ref_n], my);
650 }
651 }
652
e5d40372
DB
653 if (list1) {
654 int ref_n = h->ref_cache[1][scan8[n]];
655 Picture *ref = &h->ref_list[1][ref_n];
6a9c8594 656
759001c5
AK
657 if (ref->tf.progress->data != h->cur_pic.tf.progress->data ||
658 (ref->reference & 3) != h->picture_structure) {
6a9c8594 659 my = get_lowest_part_list_y(h, ref, n, height, y_offset, 1);
e5d40372
DB
660 if (refs[1][ref_n] < 0)
661 nrefs[1] += 1;
6a9c8594
AS
662 refs[1][ref_n] = FFMAX(refs[1][ref_n], my);
663 }
664 }
665}
666
667/**
668 * Wait until all reference frames are available for MC operations.
669 *
670 * @param h the H264 context
671 */
e5d40372
DB
672static void await_references(H264Context *h)
673{
e5d40372 674 const int mb_xy = h->mb_xy;
759001c5 675 const int mb_type = h->cur_pic.mb_type[mb_xy];
6a9c8594 676 int refs[2][48];
e5d40372 677 int nrefs[2] = { 0 };
6a9c8594
AS
678 int ref, list;
679
680 memset(refs, -1, sizeof(refs));
681
e5d40372 682 if (IS_16X16(mb_type)) {
6a9c8594 683 get_lowest_part_y(h, refs, 0, 16, 0,
e5d40372
DB
684 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);
685 } else if (IS_16X8(mb_type)) {
6a9c8594 686 get_lowest_part_y(h, refs, 0, 8, 0,
e5d40372 687 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);
6a9c8594 688 get_lowest_part_y(h, refs, 8, 8, 8,
e5d40372
DB
689 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1), nrefs);
690 } else if (IS_8X16(mb_type)) {
6a9c8594 691 get_lowest_part_y(h, refs, 0, 16, 0,
e5d40372 692 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1), nrefs);
6a9c8594 693 get_lowest_part_y(h, refs, 4, 16, 0,
e5d40372
DB
694 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1), nrefs);
695 } else {
6a9c8594
AS
696 int i;
697
698 assert(IS_8X8(mb_type));
699
e5d40372
DB
700 for (i = 0; i < 4; i++) {
701 const int sub_mb_type = h->sub_mb_type[i];
702 const int n = 4 * i;
703 int y_offset = (i & 2) << 2;
704
705 if (IS_SUB_8X8(sub_mb_type)) {
706 get_lowest_part_y(h, refs, n, 8, y_offset,
707 IS_DIR(sub_mb_type, 0, 0),
708 IS_DIR(sub_mb_type, 0, 1),
709 nrefs);
710 } else if (IS_SUB_8X4(sub_mb_type)) {
711 get_lowest_part_y(h, refs, n, 4, y_offset,
712 IS_DIR(sub_mb_type, 0, 0),
713 IS_DIR(sub_mb_type, 0, 1),
714 nrefs);
715 get_lowest_part_y(h, refs, n + 2, 4, y_offset + 4,
716 IS_DIR(sub_mb_type, 0, 0),
717 IS_DIR(sub_mb_type, 0, 1),
718 nrefs);
719 } else if (IS_SUB_4X8(sub_mb_type)) {
720 get_lowest_part_y(h, refs, n, 8, y_offset,
721 IS_DIR(sub_mb_type, 0, 0),
722 IS_DIR(sub_mb_type, 0, 1),
723 nrefs);
724 get_lowest_part_y(h, refs, n + 1, 8, y_offset,
725 IS_DIR(sub_mb_type, 0, 0),
726 IS_DIR(sub_mb_type, 0, 1),
727 nrefs);
728 } else {
6a9c8594
AS
729 int j;
730 assert(IS_SUB_4X4(sub_mb_type));
e5d40372
DB
731 for (j = 0; j < 4; j++) {
732 int sub_y_offset = y_offset + 2 * (j & 2);
733 get_lowest_part_y(h, refs, n + j, 4, sub_y_offset,
734 IS_DIR(sub_mb_type, 0, 0),
735 IS_DIR(sub_mb_type, 0, 1),
736 nrefs);
6a9c8594
AS
737 }
738 }
739 }
740 }
741
e5d40372
DB
742 for (list = h->list_count - 1; list >= 0; list--)
743 for (ref = 0; ref < 48 && nrefs[list]; ref++) {
6a9c8594 744 int row = refs[list][ref];
e5d40372
DB
745 if (row >= 0) {
746 Picture *ref_pic = &h->ref_list[list][ref];
759001c5 747 int ref_field = ref_pic->reference - 1;
6a9c8594 748 int ref_field_picture = ref_pic->field_picture;
2c541554 749 int pic_height = 16 * h->mb_height >> ref_field_picture;
6a9c8594 750
82313eaa 751 row <<= MB_MBAFF(h);
6a9c8594
AS
752 nrefs[list]--;
753
7fa00653 754 if (!FIELD_PICTURE(h) && ref_field_picture) { // frame referencing two fields
759001c5 755 ff_thread_await_progress(&ref_pic->tf,
e5d40372
DB
756 FFMIN((row >> 1) - !(row & 1),
757 pic_height - 1),
758 1);
759001c5 759 ff_thread_await_progress(&ref_pic->tf,
e5d40372
DB
760 FFMIN((row >> 1), pic_height - 1),
761 0);
7fa00653 762 } else if (FIELD_PICTURE(h) && !ref_field_picture) { // field referencing one field of a frame
759001c5 763 ff_thread_await_progress(&ref_pic->tf,
e5d40372
DB
764 FFMIN(row * 2 + ref_field,
765 pic_height - 1),
766 0);
7fa00653 767 } else if (FIELD_PICTURE(h)) {
759001c5 768 ff_thread_await_progress(&ref_pic->tf,
e5d40372
DB
769 FFMIN(row, pic_height - 1),
770 ref_field);
771 } else {
759001c5 772 ff_thread_await_progress(&ref_pic->tf,
e5d40372
DB
773 FFMIN(row, pic_height - 1),
774 0);
6a9c8594
AS
775 }
776 }
777 }
66c6b5e2 778}
66c6b5e2 779
e5d40372
DB
780static av_always_inline void mc_dir_part(H264Context *h, Picture *pic,
781 int n, int square, int height,
782 int delta, int list,
783 uint8_t *dest_y, uint8_t *dest_cb,
784 uint8_t *dest_cr,
785 int src_x_offset, int src_y_offset,
786 qpel_mc_func *qpix_op,
787 h264_chroma_mc_func chroma_op,
788 int pixel_shift, int chroma_idc)
05fb63f5 789{
e5d40372
DB
790 const int mx = h->mv_cache[list][scan8[n]][0] + src_x_offset * 8;
791 int my = h->mv_cache[list][scan8[n]][1] + src_y_offset * 8;
792 const int luma_xy = (mx & 3) + ((my & 3) << 2);
793 int offset = ((mx >> 2) << pixel_shift) + (my >> 2) * h->mb_linesize;
794 uint8_t *src_y = pic->f.data[0] + offset;
795 uint8_t *src_cb, *src_cr;
fae6fd5b
RB
796 int extra_width = 0;
797 int extra_height = 0;
e5d40372
DB
798 int emu = 0;
799 const int full_mx = mx >> 2;
800 const int full_my = my >> 2;
2c541554 801 const int pic_width = 16 * h->mb_width;
da6be8fc 802 const int pic_height = 16 * h->mb_height >> MB_FIELD(h);
229d263c 803 int ysh;
115329f1 804
e5d40372
DB
805 if (mx & 7)
806 extra_width -= 3;
807 if (my & 7)
808 extra_height -= 3;
809
810 if (full_mx < 0 - extra_width ||
811 full_my < 0 - extra_height ||
812 full_mx + 16 /*FIXME*/ > pic_width + extra_width ||
813 full_my + 16 /*FIXME*/ > pic_height + extra_height) {
2c541554 814 h->vdsp.emulated_edge_mc(h->edge_emu_buffer,
8c53d39e
RB
815 src_y - (2 << pixel_shift) - 2 * h->mb_linesize,
816 h->mb_linesize,
817 16 + 5, 16 + 5 /*FIXME*/, full_mx - 2,
818 full_my - 2, pic_width, pic_height);
2c541554 819 src_y = h->edge_emu_buffer + (2 << pixel_shift) + 2 * h->mb_linesize;
e5d40372
DB
820 emu = 1;
821 }
822
823 qpix_op[luma_xy](dest_y, src_y, h->mb_linesize); // FIXME try variable height perhaps?
824 if (!square)
5d18eaad 825 qpix_op[luma_xy](dest_y + delta, src_y + delta, h->mb_linesize);
115329f1 826
2c541554 827 if (CONFIG_GRAY && h->flags & CODEC_FLAG_GRAY)
e5d40372 828 return;
7b442ad9 829
e5d40372 830 if (chroma_idc == 3 /* yuv444 */) {
657ccb5a 831 src_cb = pic->f.data[1] + offset;
e5d40372 832 if (emu) {
2c541554 833 h->vdsp.emulated_edge_mc(h->edge_emu_buffer,
8c53d39e
RB
834 src_cb - (2 << pixel_shift) - 2 * h->mb_linesize,
835 h->mb_linesize,
836 16 + 5, 16 + 5 /*FIXME*/,
837 full_mx - 2, full_my - 2,
838 pic_width, pic_height);
2c541554 839 src_cb = h->edge_emu_buffer + (2 << pixel_shift) + 2 * h->mb_linesize;
c90b9442 840 }
e5d40372
DB
841 qpix_op[luma_xy](dest_cb, src_cb, h->mb_linesize); // FIXME try variable height perhaps?
842 if (!square)
c90b9442 843 qpix_op[luma_xy](dest_cb + delta, src_cb + delta, h->mb_linesize);
c90b9442 844
657ccb5a 845 src_cr = pic->f.data[2] + offset;
e5d40372 846 if (emu) {
2c541554 847 h->vdsp.emulated_edge_mc(h->edge_emu_buffer,
8c53d39e
RB
848 src_cr - (2 << pixel_shift) - 2 * h->mb_linesize,
849 h->mb_linesize,
850 16 + 5, 16 + 5 /*FIXME*/,
851 full_mx - 2, full_my - 2,
852 pic_width, pic_height);
2c541554 853 src_cr = h->edge_emu_buffer + (2 << pixel_shift) + 2 * h->mb_linesize;
c90b9442 854 }
e5d40372
DB
855 qpix_op[luma_xy](dest_cr, src_cr, h->mb_linesize); // FIXME try variable height perhaps?
856 if (!square)
c90b9442 857 qpix_op[luma_xy](dest_cr + delta, src_cr + delta, h->mb_linesize);
c90b9442
JGG
858 return;
859 }
860
05fb63f5 861 ysh = 3 - (chroma_idc == 2 /* yuv422 */);
da6be8fc 862 if (chroma_idc == 1 /* yuv420 */ && MB_FIELD(h)) {
5d18eaad 863 // chroma offset when predicting from a field of opposite parity
759001c5 864 my += 2 * ((h->mb_y & 1) - (pic->reference - 1));
e5d40372 865 emu |= (my >> 3) < 0 || (my >> 3) + 8 >= (pic_height >> 1);
5d18eaad 866 }
229d263c 867
e5d40372
DB
868 src_cb = pic->f.data[1] + ((mx >> 3) << pixel_shift) +
869 (my >> ysh) * h->mb_uvlinesize;
870 src_cr = pic->f.data[2] + ((mx >> 3) << pixel_shift) +
871 (my >> ysh) * h->mb_uvlinesize;
5d18eaad 872
e5d40372 873 if (emu) {
2c541554 874 h->vdsp.emulated_edge_mc(h->edge_emu_buffer, src_cb, h->mb_uvlinesize,
8c53d39e
RB
875 9, 8 * chroma_idc + 1, (mx >> 3), (my >> ysh),
876 pic_width >> 1, pic_height >> (chroma_idc == 1 /* yuv420 */));
2c541554 877 src_cb = h->edge_emu_buffer;
0da71265 878 }
e5d40372
DB
879 chroma_op(dest_cb, src_cb, h->mb_uvlinesize,
880 height >> (chroma_idc == 1 /* yuv420 */),
881 mx & 7, (my << (chroma_idc == 2 /* yuv422 */)) & 7);
0da71265 882
e5d40372 883 if (emu) {
2c541554 884 h->vdsp.emulated_edge_mc(h->edge_emu_buffer, src_cr, h->mb_uvlinesize,
8c53d39e
RB
885 9, 8 * chroma_idc + 1, (mx >> 3), (my >> ysh),
886 pic_width >> 1, pic_height >> (chroma_idc == 1 /* yuv420 */));
2c541554 887 src_cr = h->edge_emu_buffer;
0da71265 888 }
05fb63f5 889 chroma_op(dest_cr, src_cr, h->mb_uvlinesize, height >> (chroma_idc == 1 /* yuv420 */),
e5d40372 890 mx & 7, (my << (chroma_idc == 2 /* yuv422 */)) & 7);
0da71265
MN
891}
892
e5d40372
DB
893static av_always_inline void mc_part_std(H264Context *h, int n, int square,
894 int height, int delta,
895 uint8_t *dest_y, uint8_t *dest_cb,
896 uint8_t *dest_cr,
897 int x_offset, int y_offset,
898 qpel_mc_func *qpix_put,
899 h264_chroma_mc_func chroma_put,
900 qpel_mc_func *qpix_avg,
901 h264_chroma_mc_func chroma_avg,
902 int list0, int list1,
903 int pixel_shift, int chroma_idc)
05fb63f5 904{
e5d40372
DB
905 qpel_mc_func *qpix_op = qpix_put;
906 h264_chroma_mc_func chroma_op = chroma_put;
115329f1 907
e5d40372 908 dest_y += (2 * x_offset << pixel_shift) + 2 * y_offset * h->mb_linesize;
05fb63f5 909 if (chroma_idc == 3 /* yuv444 */) {
e5d40372
DB
910 dest_cb += (2 * x_offset << pixel_shift) + 2 * y_offset * h->mb_linesize;
911 dest_cr += (2 * x_offset << pixel_shift) + 2 * y_offset * h->mb_linesize;
05fb63f5 912 } else if (chroma_idc == 2 /* yuv422 */) {
e5d40372
DB
913 dest_cb += (x_offset << pixel_shift) + 2 * y_offset * h->mb_uvlinesize;
914 dest_cr += (x_offset << pixel_shift) + 2 * y_offset * h->mb_uvlinesize;
915 } else { /* yuv420 */
916 dest_cb += (x_offset << pixel_shift) + y_offset * h->mb_uvlinesize;
917 dest_cr += (x_offset << pixel_shift) + y_offset * h->mb_uvlinesize;
c90b9442 918 }
2c541554 919 x_offset += 8 * h->mb_x;
da6be8fc 920 y_offset += 8 * (h->mb_y >> MB_FIELD(h));
115329f1 921
e5d40372
DB
922 if (list0) {
923 Picture *ref = &h->ref_list[0][h->ref_cache[0][scan8[n]]];
c2d33742 924 mc_dir_part(h, ref, n, square, height, delta, 0,
e5d40372
DB
925 dest_y, dest_cb, dest_cr, x_offset, y_offset,
926 qpix_op, chroma_op, pixel_shift, chroma_idc);
0da71265 927
e5d40372
DB
928 qpix_op = qpix_avg;
929 chroma_op = chroma_avg;
0da71265
MN
930 }
931
e5d40372
DB
932 if (list1) {
933 Picture *ref = &h->ref_list[1][h->ref_cache[1][scan8[n]]];
c2d33742 934 mc_dir_part(h, ref, n, square, height, delta, 1,
e5d40372
DB
935 dest_y, dest_cb, dest_cr, x_offset, y_offset,
936 qpix_op, chroma_op, pixel_shift, chroma_idc);
0da71265
MN
937 }
938}
939
e5d40372
DB
940static av_always_inline void mc_part_weighted(H264Context *h, int n, int square,
941 int height, int delta,
942 uint8_t *dest_y, uint8_t *dest_cb,
943 uint8_t *dest_cr,
944 int x_offset, int y_offset,
945 qpel_mc_func *qpix_put,
946 h264_chroma_mc_func chroma_put,
947 h264_weight_func luma_weight_op,
948 h264_weight_func chroma_weight_op,
949 h264_biweight_func luma_weight_avg,
950 h264_biweight_func chroma_weight_avg,
951 int list0, int list1,
952 int pixel_shift, int chroma_idc)
953{
c2d33742 954 int chroma_height;
9f2d1b4f 955
e5d40372 956 dest_y += (2 * x_offset << pixel_shift) + 2 * y_offset * h->mb_linesize;
05fb63f5 957 if (chroma_idc == 3 /* yuv444 */) {
e5d40372 958 chroma_height = height;
c90b9442 959 chroma_weight_avg = luma_weight_avg;
e5d40372
DB
960 chroma_weight_op = luma_weight_op;
961 dest_cb += (2 * x_offset << pixel_shift) + 2 * y_offset * h->mb_linesize;
962 dest_cr += (2 * x_offset << pixel_shift) + 2 * y_offset * h->mb_linesize;
05fb63f5 963 } else if (chroma_idc == 2 /* yuv422 */) {
c2d33742 964 chroma_height = height;
e5d40372
DB
965 dest_cb += (x_offset << pixel_shift) + 2 * y_offset * h->mb_uvlinesize;
966 dest_cr += (x_offset << pixel_shift) + 2 * y_offset * h->mb_uvlinesize;
967 } else { /* yuv420 */
c2d33742 968 chroma_height = height >> 1;
e5d40372
DB
969 dest_cb += (x_offset << pixel_shift) + y_offset * h->mb_uvlinesize;
970 dest_cr += (x_offset << pixel_shift) + y_offset * h->mb_uvlinesize;
c90b9442 971 }
2c541554 972 x_offset += 8 * h->mb_x;
da6be8fc 973 y_offset += 8 * (h->mb_y >> MB_FIELD(h));
115329f1 974
e5d40372 975 if (list0 && list1) {
9f2d1b4f
LM
976 /* don't optimize for luma-only case, since B-frames usually
977 * use implicit weights => chroma too. */
a394959b
JG
978 uint8_t *tmp_cb = h->bipred_scratchpad;
979 uint8_t *tmp_cr = h->bipred_scratchpad + (16 << pixel_shift);
980 uint8_t *tmp_y = h->bipred_scratchpad + 16 * h->mb_uvlinesize;
e5d40372
DB
981 int refn0 = h->ref_cache[0][scan8[n]];
982 int refn1 = h->ref_cache[1][scan8[n]];
9f2d1b4f 983
c2d33742 984 mc_dir_part(h, &h->ref_list[0][refn0], n, square, height, delta, 0,
9f2d1b4f 985 dest_y, dest_cb, dest_cr,
05fb63f5
RB
986 x_offset, y_offset, qpix_put, chroma_put,
987 pixel_shift, chroma_idc);
c2d33742 988 mc_dir_part(h, &h->ref_list[1][refn1], n, square, height, delta, 1,
9f2d1b4f 989 tmp_y, tmp_cb, tmp_cr,
05fb63f5
RB
990 x_offset, y_offset, qpix_put, chroma_put,
991 pixel_shift, chroma_idc);
9f2d1b4f 992
e5d40372 993 if (h->use_weight == 2) {
2c541554 994 int weight0 = h->implicit_weight[refn0][refn1][h->mb_y & 1];
9f2d1b4f 995 int weight1 = 64 - weight0;
e5d40372
DB
996 luma_weight_avg(dest_y, tmp_y, h->mb_linesize,
997 height, 5, weight0, weight1, 0);
c2d33742
RB
998 chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize,
999 chroma_height, 5, weight0, weight1, 0);
1000 chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize,
1001 chroma_height, 5, weight0, weight1, 0);
e5d40372
DB
1002 } else {
1003 luma_weight_avg(dest_y, tmp_y, h->mb_linesize, height,
1004 h->luma_log2_weight_denom,
1005 h->luma_weight[refn0][0][0],
1006 h->luma_weight[refn1][1][0],
1007 h->luma_weight[refn0][0][1] +
1008 h->luma_weight[refn1][1][1]);
1009 chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize, chroma_height,
1010 h->chroma_log2_weight_denom,
1011 h->chroma_weight[refn0][0][0][0],
1012 h->chroma_weight[refn1][1][0][0],
1013 h->chroma_weight[refn0][0][0][1] +
1014 h->chroma_weight[refn1][1][0][1]);
1015 chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize, chroma_height,
1016 h->chroma_log2_weight_denom,
1017 h->chroma_weight[refn0][0][1][0],
1018 h->chroma_weight[refn1][1][1][0],
1019 h->chroma_weight[refn0][0][1][1] +
1020 h->chroma_weight[refn1][1][1][1]);
9f2d1b4f 1021 }
e5d40372
DB
1022 } else {
1023 int list = list1 ? 1 : 0;
1024 int refn = h->ref_cache[list][scan8[n]];
1025 Picture *ref = &h->ref_list[list][refn];
c2d33742 1026 mc_dir_part(h, ref, n, square, height, delta, list,
9f2d1b4f 1027 dest_y, dest_cb, dest_cr, x_offset, y_offset,
05fb63f5 1028 qpix_put, chroma_put, pixel_shift, chroma_idc);
9f2d1b4f 1029
e5d40372
DB
1030 luma_weight_op(dest_y, h->mb_linesize, height,
1031 h->luma_log2_weight_denom,
1032 h->luma_weight[refn][list][0],
1033 h->luma_weight[refn][list][1]);
1034 if (h->use_weight_chroma) {
1035 chroma_weight_op(dest_cb, h->mb_uvlinesize, chroma_height,
1036 h->chroma_log2_weight_denom,
1037 h->chroma_weight[refn][list][0][0],
1038 h->chroma_weight[refn][list][0][1]);
1039 chroma_weight_op(dest_cr, h->mb_uvlinesize, chroma_height,
1040 h->chroma_log2_weight_denom,
1041 h->chroma_weight[refn][list][1][0],
1042 h->chroma_weight[refn][list][1][1]);
9f2d1b4f
LM
1043 }
1044 }
1045}
1046
e5d40372
DB
1047static av_always_inline void prefetch_motion(H264Context *h, int list,
1048 int pixel_shift, int chroma_idc)
27209bb1 1049{
513fbd8e
LM
1050 /* fetch pixels for estimated mv 4 macroblocks ahead
1051 * optimized for 64byte cache lines */
513fbd8e 1052 const int refn = h->ref_cache[list][scan8[0]];
e5d40372 1053 if (refn >= 0) {
2c541554
AK
1054 const int mx = (h->mv_cache[list][scan8[0]][0] >> 2) + 16 * h->mb_x + 8;
1055 const int my = (h->mv_cache[list][scan8[0]][1] >> 2) + 16 * h->mb_y;
657ccb5a 1056 uint8_t **src = h->ref_list[list][refn].f.data;
e5d40372 1057 int off = (mx << pixel_shift) +
2c541554 1058 (my + (h->mb_x & 3) * 4) * h->mb_linesize +
e5d40372 1059 (64 << pixel_shift);
2c541554 1060 h->vdsp.prefetch(src[0] + off, h->linesize, 4);
05fb63f5 1061 if (chroma_idc == 3 /* yuv444 */) {
2c541554
AK
1062 h->vdsp.prefetch(src[1] + off, h->linesize, 4);
1063 h->vdsp.prefetch(src[2] + off, h->linesize, 4);
e5d40372
DB
1064 } else {
1065 off = ((mx >> 1) << pixel_shift) +
2c541554 1066 ((my >> 1) + (h->mb_x & 7)) * h->uvlinesize +
e5d40372 1067 (64 << pixel_shift);
2c541554 1068 h->vdsp.prefetch(src[1] + off, src[2] - src[1], 2);
c90b9442 1069 }
513fbd8e
LM
1070 }
1071}
1072
e5d40372
DB
1073static void free_tables(H264Context *h, int free_rbsp)
1074{
7978debd 1075 int i;
afebe2f7 1076 H264Context *hx;
6a9c8594 1077
0da71265 1078 av_freep(&h->intra4x4_pred_mode);
e5017ab8
LA
1079 av_freep(&h->chroma_pred_mode_table);
1080 av_freep(&h->cbp_table);
9e528114
LA
1081 av_freep(&h->mvd_table[0]);
1082 av_freep(&h->mvd_table[1]);
5ad984c9 1083 av_freep(&h->direct_table);
0da71265
MN
1084 av_freep(&h->non_zero_count);
1085 av_freep(&h->slice_table_base);
e5d40372 1086 h->slice_table = NULL;
c988f975 1087 av_freep(&h->list_counts);
e5017ab8 1088
0da71265 1089 av_freep(&h->mb2b_xy);
d43c1922 1090 av_freep(&h->mb2br_xy);
9f2d1b4f 1091
759001c5
AK
1092 av_buffer_pool_uninit(&h->qscale_table_pool);
1093 av_buffer_pool_uninit(&h->mb_type_pool);
1094 av_buffer_pool_uninit(&h->motion_val_pool);
1095 av_buffer_pool_uninit(&h->ref_index_pool);
1096
1097 if (free_rbsp && h->DPB) {
1098 for (i = 0; i < MAX_PICTURE_COUNT; i++)
1099 unref_picture(h, &h->DPB[i]);
2c541554 1100 av_freep(&h->DPB);
2c541554 1101 } else if (h->DPB) {
759001c5 1102 for (i = 0; i < MAX_PICTURE_COUNT; i++)
2c541554
AK
1103 h->DPB[i].needs_realloc = 1;
1104 }
1105
1106 h->cur_pic_ptr = NULL;
1107
e5d40372 1108 for (i = 0; i < MAX_THREADS; i++) {
afebe2f7 1109 hx = h->thread_context[i];
e5d40372
DB
1110 if (!hx)
1111 continue;
afebe2f7
1112 av_freep(&hx->top_borders[1]);
1113 av_freep(&hx->top_borders[0]);
a394959b 1114 av_freep(&hx->bipred_scratchpad);
2c541554
AK
1115 av_freep(&hx->edge_emu_buffer);
1116 av_freep(&hx->dc_val_base);
1117 av_freep(&hx->me.scratchpad);
1118 av_freep(&hx->er.mb_index2xy);
1119 av_freep(&hx->er.error_status_table);
1120 av_freep(&hx->er.er_temp_buffer);
1121 av_freep(&hx->er.mbintra_table);
1122 av_freep(&hx->er.mbskip_table);
1123
e5d40372 1124 if (free_rbsp) {
fcb7e535
RB
1125 av_freep(&hx->rbsp_buffer[1]);
1126 av_freep(&hx->rbsp_buffer[0]);
1127 hx->rbsp_buffer_size[0] = 0;
1128 hx->rbsp_buffer_size[1] = 0;
91078926 1129 }
e5d40372
DB
1130 if (i)
1131 av_freep(&h->thread_context[i]);
afebe2f7 1132 }
0da71265
MN
1133}
1134
e5d40372
DB
1135static void init_dequant8_coeff_table(H264Context *h)
1136{
1137 int i, j, q, x;
1138 const int max_qp = 51 + 6 * (h->sps.bit_depth_luma - 8);
239ea04c 1139
e5d40372 1140 for (i = 0; i < 6; i++) {
c90b9442 1141 h->dequant8_coeff[i] = h->dequant8_buffer[i];
e5d40372
DB
1142 for (j = 0; j < i; j++)
1143 if (!memcmp(h->pps.scaling_matrix8[j], h->pps.scaling_matrix8[i],
1144 64 * sizeof(uint8_t))) {
c90b9442
JGG
1145 h->dequant8_coeff[i] = h->dequant8_buffer[j];
1146 break;
1147 }
e5d40372 1148 if (j < i)
c90b9442 1149 continue;
239ea04c 1150
e5d40372 1151 for (q = 0; q < max_qp + 1; q++) {
d9ec210b 1152 int shift = div6[q];
e5d40372
DB
1153 int idx = rem6[q];
1154 for (x = 0; x < 64; x++)
1155 h->dequant8_coeff[i][q][(x >> 3) | ((x & 7) << 3)] =
1156 ((uint32_t)dequant8_coeff_init[idx][dequant8_coeff_init_scan[((x >> 1) & 12) | (x & 3)]] *
1157 h->pps.scaling_matrix8[i][x]) << shift;
239ea04c
LM
1158 }
1159 }
1160}
1161
e5d40372
DB
1162static void init_dequant4_coeff_table(H264Context *h)
1163{
1164 int i, j, q, x;
1165 const int max_qp = 51 + 6 * (h->sps.bit_depth_luma - 8);
1166 for (i = 0; i < 6; i++) {
239ea04c 1167 h->dequant4_coeff[i] = h->dequant4_buffer[i];
e5d40372
DB
1168 for (j = 0; j < i; j++)
1169 if (!memcmp(h->pps.scaling_matrix4[j], h->pps.scaling_matrix4[i],
1170 16 * sizeof(uint8_t))) {
239ea04c
LM
1171 h->dequant4_coeff[i] = h->dequant4_buffer[j];
1172 break;
1173 }
e5d40372 1174 if (j < i)
239ea04c
LM
1175 continue;
1176
e5d40372 1177 for (q = 0; q < max_qp + 1; q++) {
d9ec210b 1178 int shift = div6[q] + 2;
e5d40372
DB
1179 int idx = rem6[q];
1180 for (x = 0; x < 16; x++)
1181 h->dequant4_coeff[i][q][(x >> 2) | ((x << 2) & 0xF)] =
1182 ((uint32_t)dequant4_coeff_init[idx][(x & 1) + ((x >> 2) & 1)] *
1183 h->pps.scaling_matrix4[i][x]) << shift;
239ea04c
LM
1184 }
1185 }
1186}
1187
e5d40372
DB
1188static void init_dequant_tables(H264Context *h)
1189{
1190 int i, x;
239ea04c 1191 init_dequant4_coeff_table(h);
e5d40372 1192 if (h->pps.transform_8x8_mode)
239ea04c 1193 init_dequant8_coeff_table(h);
e5d40372
DB
1194 if (h->sps.transform_bypass) {
1195 for (i = 0; i < 6; i++)
1196 for (x = 0; x < 16; x++)
1197 h->dequant4_coeff[i][0][x] = 1 << 6;
1198 if (h->pps.transform_8x8_mode)
1199 for (i = 0; i < 6; i++)
1200 for (x = 0; x < 64; x++)
1201 h->dequant8_coeff[i][0][x] = 1 << 6;
239ea04c
LM
1202 }
1203}
1204
e5d40372
DB
1205int ff_h264_alloc_tables(H264Context *h)
1206{
2c541554
AK
1207 const int big_mb_num = h->mb_stride * (h->mb_height + 1);
1208 const int row_mb_num = h->mb_stride * 2 * h->avctx->thread_count;
1209 int x, y, i;
e5d40372 1210
2c541554 1211 FF_ALLOCZ_OR_GOTO(h->avctx, h->intra4x4_pred_mode,
e5d40372 1212 row_mb_num * 8 * sizeof(uint8_t), fail)
2c541554 1213 FF_ALLOCZ_OR_GOTO(h->avctx, h->non_zero_count,
e5d40372 1214 big_mb_num * 48 * sizeof(uint8_t), fail)
2c541554
AK
1215 FF_ALLOCZ_OR_GOTO(h->avctx, h->slice_table_base,
1216 (big_mb_num + h->mb_stride) * sizeof(*h->slice_table_base), fail)
1217 FF_ALLOCZ_OR_GOTO(h->avctx, h->cbp_table,
e5d40372 1218 big_mb_num * sizeof(uint16_t), fail)
2c541554 1219 FF_ALLOCZ_OR_GOTO(h->avctx, h->chroma_pred_mode_table,
e5d40372 1220 big_mb_num * sizeof(uint8_t), fail)
2c541554 1221 FF_ALLOCZ_OR_GOTO(h->avctx, h->mvd_table[0],
e5d40372 1222 16 * row_mb_num * sizeof(uint8_t), fail);
2c541554 1223 FF_ALLOCZ_OR_GOTO(h->avctx, h->mvd_table[1],
e5d40372 1224 16 * row_mb_num * sizeof(uint8_t), fail);
2c541554 1225 FF_ALLOCZ_OR_GOTO(h->avctx, h->direct_table,
e5d40372 1226 4 * big_mb_num * sizeof(uint8_t), fail);
2c541554 1227 FF_ALLOCZ_OR_GOTO(h->avctx, h->list_counts,
e5d40372
DB
1228 big_mb_num * sizeof(uint8_t), fail)
1229
1230 memset(h->slice_table_base, -1,
2c541554
AK
1231 (big_mb_num + h->mb_stride) * sizeof(*h->slice_table_base));
1232 h->slice_table = h->slice_table_base + h->mb_stride * 2 + 1;
e5d40372 1233
2c541554 1234 FF_ALLOCZ_OR_GOTO(h->avctx, h->mb2b_xy,
e5d40372 1235 big_mb_num * sizeof(uint32_t), fail);
2c541554 1236 FF_ALLOCZ_OR_GOTO(h->avctx, h->mb2br_xy,
e5d40372 1237 big_mb_num * sizeof(uint32_t), fail);
2c541554
AK
1238 for (y = 0; y < h->mb_height; y++)
1239 for (x = 0; x < h->mb_width; x++) {
1240 const int mb_xy = x + y * h->mb_stride;
e5d40372
DB
1241 const int b_xy = 4 * x + 4 * y * h->b_stride;
1242
1243 h->mb2b_xy[mb_xy] = b_xy;
2c541554 1244 h->mb2br_xy[mb_xy] = 8 * (FMO ? mb_xy : (mb_xy % (2 * h->mb_stride)));
0da71265 1245 }
9f2d1b4f 1246
e5d40372 1247 if (!h->dequant4_coeff[0])
56edbd81
LM
1248 init_dequant_tables(h);
1249
2c541554 1250 if (!h->DPB) {
759001c5 1251 h->DPB = av_mallocz_array(MAX_PICTURE_COUNT, sizeof(*h->DPB));
2c541554
AK
1252 if (!h->DPB)
1253 return AVERROR(ENOMEM);
759001c5 1254 for (i = 0; i < MAX_PICTURE_COUNT; i++)
2c541554
AK
1255 avcodec_get_frame_defaults(&h->DPB[i].f);
1256 avcodec_get_frame_defaults(&h->cur_pic.f);
1257 }
1258
0da71265 1259 return 0;
e5d40372 1260
0da71265 1261fail:
91078926 1262 free_tables(h, 1);
0da71265
MN
1263 return -1;
1264}
1265
afebe2f7
1266/**
1267 * Mimic alloc_tables(), but for every context thread.
1268 */
e5d40372
DB
1269static void clone_tables(H264Context *dst, H264Context *src, int i)
1270{
2c541554 1271 dst->intra4x4_pred_mode = src->intra4x4_pred_mode + i * 8 * 2 * src->mb_stride;
e5d40372
DB
1272 dst->non_zero_count = src->non_zero_count;
1273 dst->slice_table = src->slice_table;
1274 dst->cbp_table = src->cbp_table;
1275 dst->mb2b_xy = src->mb2b_xy;
1276 dst->mb2br_xy = src->mb2br_xy;
1277 dst->chroma_pred_mode_table = src->chroma_pred_mode_table;
2c541554
AK
1278 dst->mvd_table[0] = src->mvd_table[0] + i * 8 * 2 * src->mb_stride;
1279 dst->mvd_table[1] = src->mvd_table[1] + i * 8 * 2 * src->mb_stride;
e5d40372
DB
1280 dst->direct_table = src->direct_table;
1281 dst->list_counts = src->list_counts;
2c541554
AK
1282 dst->DPB = src->DPB;
1283 dst->cur_pic_ptr = src->cur_pic_ptr;
1284 dst->cur_pic = src->cur_pic;
a394959b 1285 dst->bipred_scratchpad = NULL;
2c541554
AK
1286 dst->edge_emu_buffer = NULL;
1287 dst->me.scratchpad = NULL;
1288 ff_h264_pred_init(&dst->hpc, src->avctx->codec_id, src->sps.bit_depth_luma,
e5d40372 1289 src->sps.chroma_format_idc);
afebe2f7
1290}
1291
1292/**
1293 * Init context
1294 * Allocate buffers which are not shared amongst multiple threads.
1295 */
e5d40372
DB
1296static int context_init(H264Context *h)
1297{
2c541554
AK
1298 ERContext *er = &h->er;
1299 int mb_array_size = h->mb_height * h->mb_stride;
1300 int y_size = (2 * h->mb_width + 1) * (2 * h->mb_height + 1);
1301 int c_size = h->mb_stride * (h->mb_height + 1);
1302 int yc_size = y_size + 2 * c_size;
1303 int x, y, i;
1304
1305 FF_ALLOCZ_OR_GOTO(h->avctx, h->top_borders[0],
1306 h->mb_width * 16 * 3 * sizeof(uint8_t) * 2, fail)
1307 FF_ALLOCZ_OR_GOTO(h->avctx, h->top_borders[1],
1308 h->mb_width * 16 * 3 * sizeof(uint8_t) * 2, fail)
e5d40372
DB
1309
1310 h->ref_cache[0][scan8[5] + 1] =
1311 h->ref_cache[0][scan8[7] + 1] =
1312 h->ref_cache[0][scan8[13] + 1] =
1313 h->ref_cache[1][scan8[5] + 1] =
1314 h->ref_cache[1][scan8[7] + 1] =
1315 h->ref_cache[1][scan8[13] + 1] = PART_NOT_AVAILABLE;
145061a1 1316
0b499c9b
RB
1317 if (CONFIG_ERROR_RESILIENCE) {
1318 /* init ER */
1319 er->avctx = h->avctx;
1320 er->dsp = &h->dsp;
1321 er->decode_mb = h264_er_decode_mb;
1322 er->opaque = h;
1323 er->quarter_sample = 1;
1324
1325 er->mb_num = h->mb_num;
1326 er->mb_width = h->mb_width;
1327 er->mb_height = h->mb_height;
1328 er->mb_stride = h->mb_stride;
1329 er->b8_stride = h->mb_width * 2 + 1;
2c541554 1330
0b499c9b
RB
1331 FF_ALLOCZ_OR_GOTO(h->avctx, er->mb_index2xy, (h->mb_num + 1) * sizeof(int),
1332 fail); // error ressilience code looks cleaner with this
1333 for (y = 0; y < h->mb_height; y++)
1334 for (x = 0; x < h->mb_width; x++)
1335 er->mb_index2xy[x + y * h->mb_width] = x + y * h->mb_stride;
2c541554 1336
0b499c9b
RB
1337 er->mb_index2xy[h->mb_height * h->mb_width] = (h->mb_height - 1) *
1338 h->mb_stride + h->mb_width;
2c541554 1339
0b499c9b
RB
1340 FF_ALLOCZ_OR_GOTO(h->avctx, er->error_status_table,
1341 mb_array_size * sizeof(uint8_t), fail);
2c541554 1342
0b499c9b
RB
1343 FF_ALLOC_OR_GOTO(h->avctx, er->mbintra_table, mb_array_size, fail);
1344 memset(er->mbintra_table, 1, mb_array_size);
2c541554 1345
0b499c9b 1346 FF_ALLOCZ_OR_GOTO(h->avctx, er->mbskip_table, mb_array_size + 2, fail);
2c541554 1347
0b499c9b
RB
1348 FF_ALLOC_OR_GOTO(h->avctx, er->er_temp_buffer, h->mb_height * h->mb_stride,
1349 fail);
1350
1351 FF_ALLOCZ_OR_GOTO(h->avctx, h->dc_val_base, yc_size * sizeof(int16_t), fail);
1352 er->dc_val[0] = h->dc_val_base + h->mb_width * 2 + 2;
1353 er->dc_val[1] = h->dc_val_base + y_size + h->mb_stride + 1;
1354 er->dc_val[2] = er->dc_val[1] + c_size;
1355 for (i = 0; i < yc_size; i++)
1356 h->dc_val_base[i] = 1024;
1357 }
54974c62 1358
afebe2f7 1359 return 0;
e5d40372 1360
afebe2f7
1361fail:
1362 return -1; // free_tables will clean up for us
1363}
1364
61c6eef5
JG
1365static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size,
1366 int parse_extradata);
9855b2e3 1367
05e95319
HC
1368int ff_h264_decode_extradata(H264Context *h)
1369{
2c541554 1370 AVCodecContext *avctx = h->avctx;
9855b2e3 1371
e5d40372 1372 if (avctx->extradata[0] == 1) {
9855b2e3
MN
1373 int i, cnt, nalsize;
1374 unsigned char *p = avctx->extradata;
1375
1376 h->is_avc = 1;
1377
e5d40372 1378 if (avctx->extradata_size < 7) {
9855b2e3
MN
1379 av_log(avctx, AV_LOG_ERROR, "avcC too short\n");
1380 return -1;
1381 }
1382 /* sps and pps in the avcC always have length coded with 2 bytes,
e5d40372 1383 * so put a fake nal_length_size = 2 while parsing them */
9855b2e3
MN
1384 h->nal_length_size = 2;
1385 // Decode sps from avcC
e5d40372
DB
1386 cnt = *(p + 5) & 0x1f; // Number of sps
1387 p += 6;
9855b2e3
MN
1388 for (i = 0; i < cnt; i++) {
1389 nalsize = AV_RB16(p) + 2;
d1186ff7
LA
1390 if (p - avctx->extradata + nalsize > avctx->extradata_size)
1391 return -1;
61c6eef5 1392 if (decode_nal_units(h, p, nalsize, 1) < 0) {
e5d40372
DB
1393 av_log(avctx, AV_LOG_ERROR,
1394 "Decoding sps %d from avcC failed\n", i);
9855b2e3
MN
1395 return -1;
1396 }
1397 p += nalsize;
1398 }
1399 // Decode pps from avcC
1400 cnt = *(p++); // Number of pps
1401 for (i = 0; i < cnt; i++) {
1402 nalsize = AV_RB16(p) + 2;
d1186ff7
LA
1403 if (p - avctx->extradata + nalsize > avctx->extradata_size)
1404 return -1;
61c6eef5 1405 if (decode_nal_units(h, p, nalsize, 1) < 0) {
e5d40372
DB
1406 av_log(avctx, AV_LOG_ERROR,
1407 "Decoding pps %d from avcC failed\n", i);
9855b2e3
MN
1408 return -1;
1409 }
1410 p += nalsize;
1411 }
e5d40372 1412 // Now store right nal length size, that will be used to parse all other nals
0c17beba 1413 h->nal_length_size = (avctx->extradata[4] & 0x03) + 1;
9855b2e3
MN
1414 } else {
1415 h->is_avc = 0;
61c6eef5 1416 if (decode_nal_units(h, avctx->extradata, avctx->extradata_size, 1) < 0)
9855b2e3
MN
1417 return -1;
1418 }
05e95319
HC
1419 return 0;
1420}
1421
e5d40372
DB
1422av_cold int ff_h264_decode_init(AVCodecContext *avctx)
1423{
1424 H264Context *h = avctx->priv_data;
ea2bb12e 1425 int i;
05e95319 1426
2c541554 1427 h->avctx = avctx;
48d0fd2d
AK
1428
1429 h->width = h->avctx->width;
1430 h->height = h->avctx->height;
1431
1432 h->bit_depth_luma = 8;
1433 h->chroma_format_idc = 1;
1434
1435 ff_h264dsp_init(&h->h264dsp, 8, 1);
1436 ff_h264chroma_init(&h->h264chroma, h->sps.bit_depth_chroma);
1437 ff_h264qpel_init(&h->h264qpel, 8);
1438 ff_h264_pred_init(&h->hpc, h->avctx->codec_id, 8, 1);
1439
1440 h->dequant_coeff_pps = -1;
1441
1442 /* needed so that IDCT permutation is known early */
85deb51a
RB
1443 if (CONFIG_ERROR_RESILIENCE)
1444 ff_dsputil_init(&h->dsp, h->avctx);
48d0fd2d
AK
1445 ff_videodsp_init(&h->vdsp, 8);
1446
1447 memset(h->pps.scaling_matrix4, 16, 6 * 16 * sizeof(uint8_t));
1448 memset(h->pps.scaling_matrix8, 16, 2 * 64 * sizeof(uint8_t));
05e95319 1449
2c541554 1450 h->picture_structure = PICT_FRAME;
2c541554
AK
1451 h->slice_context_count = 1;
1452 h->workaround_bugs = avctx->workaround_bugs;
1453 h->flags = avctx->flags;
05e95319 1454
e5d40372
DB
1455 /* set defaults */
1456 // s->decode_mb = ff_h263_decode_mb;
e5d40372 1457 if (!avctx->has_b_frames)
2c541554 1458 h->low_delay = 1;
05e95319
HC
1459
1460 avctx->chroma_sample_location = AVCHROMA_LOC_LEFT;
1461
1462 ff_h264_decode_init_vlc();
1463
6e3ef511 1464 h->pixel_shift = 0;
19a0729b 1465 h->sps.bit_depth_luma = avctx->bits_per_raw_sample = 8;
6e3ef511 1466
05e95319 1467 h->thread_context[0] = h;
e5d40372 1468 h->outputed_poc = h->next_outputed_poc = INT_MIN;
ea2bb12e
RB
1469 for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++)
1470 h->last_pocs[i] = INT_MIN;
e5d40372
DB
1471 h->prev_poc_msb = 1 << 16;
1472 h->x264_build = -1;
05e95319 1473 ff_h264_reset_sei(h);
36ef5369 1474 if (avctx->codec_id == AV_CODEC_ID_H264) {
e5d40372 1475 if (avctx->ticks_per_frame == 1)
2c541554 1476 h->avctx->time_base.den *= 2;
05e95319
HC
1477 avctx->ticks_per_frame = 2;
1478 }
1479
e5d40372 1480 if (avctx->extradata_size > 0 && avctx->extradata &&
05e95319
HC
1481 ff_h264_decode_extradata(h))
1482 return -1;
1483
e5d40372 1484 if (h->sps.bitstream_restriction_flag &&
2c541554
AK
1485 h->avctx->has_b_frames < h->sps.num_reorder_frames) {
1486 h->avctx->has_b_frames = h->sps.num_reorder_frames;
1487 h->low_delay = 0;
db8cb47d 1488 }
9855b2e3 1489
759001c5
AK
1490 avctx->internal->allocate_progress = 1;
1491
0da71265
MN
1492 return 0;
1493}
1494
e5d40372 1495#define IN_RANGE(a, b, size) (((a) >= (b)) && ((a) < ((b) + (size))))
2c541554
AK
1496#undef REBASE_PICTURE
1497#define REBASE_PICTURE(pic, new_ctx, old_ctx) \
1498 ((pic && pic >= old_ctx->DPB && \
759001c5 1499 pic < old_ctx->DPB + MAX_PICTURE_COUNT) ? \
2c541554 1500 &new_ctx->DPB[pic - old_ctx->DPB] : NULL)
e5d40372
DB
1501
1502static void copy_picture_range(Picture **to, Picture **from, int count,
2c541554
AK
1503 H264Context *new_base,
1504 H264Context *old_base)
6a9c8594
AS
1505{
1506 int i;
1507
e5d40372 1508 for (i = 0; i < count; i++) {
6a9c8594 1509 assert((IN_RANGE(from[i], old_base, sizeof(*old_base)) ||
2c541554 1510 IN_RANGE(from[i], old_base->DPB,
759001c5 1511 sizeof(Picture) * MAX_PICTURE_COUNT) ||
6a9c8594
AS
1512 !from[i]));
1513 to[i] = REBASE_PICTURE(from[i], new_base, old_base);
1514 }
1515}
1516
1517static void copy_parameter_set(void **to, void **from, int count, int size)
1518{
1519 int i;
1520
e5d40372
DB
1521 for (i = 0; i < count; i++) {
1522 if (to[i] && !from[i])
1523 av_freep(&to[i]);
1524 else if (from[i] && !to[i])
1525 to[i] = av_malloc(size);
6a9c8594 1526
e5d40372
DB
1527 if (from[i])
1528 memcpy(to[i], from[i], size);
6a9c8594
AS
1529 }
1530}
1531
e5d40372
DB
1532static int decode_init_thread_copy(AVCodecContext *avctx)
1533{
1534 H264Context *h = avctx->priv_data;
6a9c8594 1535
f3a29b75
JR
1536 if (!avctx->internal->is_copy)
1537 return 0;
6a9c8594
AS
1538 memset(h->sps_buffers, 0, sizeof(h->sps_buffers));
1539 memset(h->pps_buffers, 0, sizeof(h->pps_buffers));
1540
2c541554 1541 h->context_initialized = 0;
0eae920c 1542
6a9c8594
AS
1543 return 0;
1544}
1545
e5d40372
DB
1546#define copy_fields(to, from, start_field, end_field) \
1547 memcpy(&to->start_field, &from->start_field, \
1548 (char *)&to->end_field - (char *)&to->start_field)
1549
9e696d2e
JG
1550static int h264_slice_header_init(H264Context *, int);
1551
1552static int h264_set_parameter_from_sps(H264Context *h);
1553
e5d40372
DB
1554static int decode_update_thread_context(AVCodecContext *dst,
1555 const AVCodecContext *src)
1556{
1557 H264Context *h = dst->priv_data, *h1 = src->priv_data;
2c541554
AK
1558 int inited = h->context_initialized, err = 0;
1559 int context_reinitialized = 0;
759001c5 1560 int i, ret;
6a9c8594 1561
2c541554 1562 if (dst == src || !h1->context_initialized)
e5d40372 1563 return 0;
6a9c8594 1564
9e696d2e 1565 if (inited &&
2c541554
AK
1566 (h->width != h1->width ||
1567 h->height != h1->height ||
1568 h->mb_width != h1->mb_width ||
1569 h->mb_height != h1->mb_height ||
9e696d2e
JG
1570 h->sps.bit_depth_luma != h1->sps.bit_depth_luma ||
1571 h->sps.chroma_format_idc != h1->sps.chroma_format_idc ||
1572 h->sps.colorspace != h1->sps.colorspace)) {
1573
a157c7f2
JG
1574 /* set bits_per_raw_sample to the previous value. the check for changed
1575 * bit depth in h264_set_parameter_from_sps() uses it and sets it to
1576 * the current value */
1577 h->avctx->bits_per_raw_sample = h->sps.bit_depth_luma;
1578
9e696d2e
JG
1579 av_freep(&h->bipred_scratchpad);
1580
2c541554
AK
1581 h->width = h1->width;
1582 h->height = h1->height;
1583 h->mb_height = h1->mb_height;
1584 h->mb_width = h1->mb_width;
1585 h->mb_num = h1->mb_num;
1586 h->mb_stride = h1->mb_stride;
9e696d2e
JG
1587 h->b_stride = h1->b_stride;
1588
1589 if ((err = h264_slice_header_init(h, 1)) < 0) {
2c541554 1590 av_log(h->avctx, AV_LOG_ERROR, "h264_slice_header_init() failed");
9e696d2e
JG
1591 return err;
1592 }
2c541554 1593 context_reinitialized = 1;
9e696d2e 1594
2c541554 1595 /* update linesize on resize. The decoder doesn't
25408b2a 1596 * necessarily call h264_frame_start in the new thread */
2c541554
AK
1597 h->linesize = h1->linesize;
1598 h->uvlinesize = h1->uvlinesize;
9e696d2e
JG
1599
1600 /* copy block_offset since frame_start may not be called */
1601 memcpy(h->block_offset, h1->block_offset, sizeof(h->block_offset));
9e696d2e
JG
1602 }
1603
e5d40372
DB
1604 if (!inited) {
1605 for (i = 0; i < MAX_SPS_COUNT; i++)
6a9c8594
AS
1606 av_freep(h->sps_buffers + i);
1607
e5d40372 1608 for (i = 0; i < MAX_PPS_COUNT; i++)
6a9c8594
AS
1609 av_freep(h->pps_buffers + i);
1610
2c541554 1611 memcpy(h, h1, sizeof(*h1));
6a9c8594
AS
1612 memset(h->sps_buffers, 0, sizeof(h->sps_buffers));
1613 memset(h->pps_buffers, 0, sizeof(h->pps_buffers));
2c541554
AK
1614 memset(&h->er, 0, sizeof(h->er));
1615 memset(&h->me, 0, sizeof(h->me));
e8cafd27
MS
1616 memset(&h->mb, 0, sizeof(h->mb));
1617 memset(&h->mb_luma_dc, 0, sizeof(h->mb_luma_dc));
1618 memset(&h->mb_padding, 0, sizeof(h->mb_padding));
2c541554
AK
1619 h->context_initialized = 0;
1620
759001c5
AK
1621 memset(&h->cur_pic, 0, sizeof(h->cur_pic));
1622 avcodec_get_frame_defaults(&h->cur_pic.f);
1623 h->cur_pic.tf.f = &h->cur_pic.f;
2c541554
AK
1624
1625 h->avctx = dst;
1626 h->DPB = NULL;
759001c5
AK
1627 h->qscale_table_pool = NULL;
1628 h->mb_type_pool = NULL;
1629 h->ref_index_pool = NULL;
1630 h->motion_val_pool = NULL;
2c541554 1631
bac3ab13
DB
1632 if (ff_h264_alloc_tables(h) < 0) {
1633 av_log(dst, AV_LOG_ERROR, "Could not allocate memory for h264\n");
1634 return AVERROR(ENOMEM);
1635 }
6a9c8594
AS
1636 context_init(h);
1637
e5d40372
DB
1638 for (i = 0; i < 2; i++) {
1639 h->rbsp_buffer[i] = NULL;
6a9c8594
AS
1640 h->rbsp_buffer_size[i] = 0;
1641 }
a394959b 1642 h->bipred_scratchpad = NULL;
2c541554 1643 h->edge_emu_buffer = NULL;
6a9c8594
AS
1644
1645 h->thread_context[0] = h;
1646
2c541554 1647 h->context_initialized = 1;
6a9c8594
AS
1648 }
1649
2c541554
AK
1650 h->avctx->coded_height = h1->avctx->coded_height;
1651 h->avctx->coded_width = h1->avctx->coded_width;
1652 h->avctx->width = h1->avctx->width;
1653 h->avctx->height = h1->avctx->height;
1654 h->coded_picture_number = h1->coded_picture_number;
1655 h->first_field = h1->first_field;
1656 h->picture_structure = h1->picture_structure;
1657 h->qscale = h1->qscale;
1658 h->droppable = h1->droppable;
1659 h->data_partitioning = h1->data_partitioning;
1660 h->low_delay = h1->low_delay;
1661
759001c5
AK
1662 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1663 unref_picture(h, &h->DPB[i]);
1664 if (h1->DPB[i].f.data[0] &&
1665 (ret = ref_picture(h, &h->DPB[i], &h1->DPB[i])) < 0)
1666 return ret;
1667 }
2c541554
AK
1668
1669 h->cur_pic_ptr = REBASE_PICTURE(h1->cur_pic_ptr, h, h1);
759001c5
AK
1670 unref_picture(h, &h->cur_pic);
1671 if ((ret = ref_picture(h, &h->cur_pic, &h1->cur_pic)) < 0)
1672 return ret;
2c541554
AK
1673
1674 h->workaround_bugs = h1->workaround_bugs;
1675 h->low_delay = h1->low_delay;
1676 h->droppable = h1->droppable;
1677
a394959b
JG
1678 /* frame_start may not be called for the next thread (if it's decoding
1679 * a bottom field) so this has to be allocated here */
2c541554
AK
1680 err = alloc_scratch_buffers(h, h1->linesize);
1681 if (err < 0)
1682 return err;
a394959b 1683
e5d40372
DB
1684 // extradata/NAL handling
1685 h->is_avc = h1->is_avc;
6a9c8594 1686
e5d40372
DB
1687 // SPS/PPS
1688 copy_parameter_set((void **)h->sps_buffers, (void **)h1->sps_buffers,
1689 MAX_SPS_COUNT, sizeof(SPS));
1690 h->sps = h1->sps;
1691 copy_parameter_set((void **)h->pps_buffers, (void **)h1->pps_buffers,
1692 MAX_PPS_COUNT, sizeof(PPS));
1693 h->pps = h1->pps;
6a9c8594 1694
e5d40372
DB
1695 // Dequantization matrices
1696 // FIXME these are big - can they be only copied when PPS changes?
6a9c8594
AS
1697 copy_fields(h, h1, dequant4_buffer, dequant4_coeff);
1698
e5d40372
DB
1699 for (i = 0; i < 6; i++)
1700 h->dequant4_coeff[i] = h->dequant4_buffer[0] +
1701 (h1->dequant4_coeff[i] - h1->dequant4_buffer[0]);
6a9c8594 1702
e5d40372
DB
1703 for (i = 0; i < 6; i++)
1704 h->dequant8_coeff[i] = h->dequant8_buffer[0] +
1705 (h1->dequant8_coeff[i] - h1->dequant8_buffer[0]);
6a9c8594
AS
1706
1707 h->dequant_coeff_pps = h1->dequant_coeff_pps;
1708
e5d40372 1709 // POC timing
6a9c8594
AS
1710 copy_fields(h, h1, poc_lsb, redundant_pic_count);
1711
e5d40372 1712 // reference lists
6a9c8594
AS
1713 copy_fields(h, h1, short_ref, cabac_init_idc);
1714
2c541554
AK
1715 copy_picture_range(h->short_ref, h1->short_ref, 32, h, h1);
1716 copy_picture_range(h->long_ref, h1->long_ref, 32, h, h1);
e5d40372 1717 copy_picture_range(h->delayed_pic, h1->delayed_pic,
2c541554 1718 MAX_DELAYED_PIC_COUNT + 2, h, h1);
6a9c8594
AS
1719
1720 h->last_slice_type = h1->last_slice_type;
1721
2c541554
AK
1722 if (context_reinitialized)
1723 h264_set_parameter_from_sps(h);
1724
1725 if (!h->cur_pic_ptr)
e5d40372 1726 return 0;
6a9c8594 1727
2c541554 1728 if (!h->droppable) {
12fe7594 1729 err = ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index);
e5d40372
DB
1730 h->prev_poc_msb = h->poc_msb;
1731 h->prev_poc_lsb = h->poc_lsb;
6a9c8594 1732 }
e5d40372
DB
1733 h->prev_frame_num_offset = h->frame_num_offset;
1734 h->prev_frame_num = h->frame_num;
1735 h->outputed_poc = h->next_outputed_poc;
6a9c8594 1736
12fe7594 1737 return err;
6a9c8594
AS
1738}
1739
25408b2a 1740static int h264_frame_start(H264Context *h)
e5d40372 1741{
2c541554
AK
1742 Picture *pic;
1743 int i, ret;
6e3ef511 1744 const int pixel_shift = h->pixel_shift;
0da71265 1745
2c541554
AK
1746 release_unused_pictures(h, 1);
1747 h->cur_pic_ptr = NULL;
1748
1749 i = find_unused_picture(h);
1750 if (i < 0) {
1751 av_log(h->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1752 return i;
1753 }
1754 pic = &h->DPB[i];
1755
759001c5 1756 pic->reference = h->droppable ? 0 : h->picture_structure;
2c541554
AK
1757 pic->f.coded_picture_number = h->coded_picture_number++;
1758 pic->field_picture = h->picture_structure != PICT_FRAME;
3a22d7fa 1759 /*
2c541554
AK
1760 * Zero key_frame here; IDR markings per slice in frame or fields are ORed
1761 * in later.
3a22d7fa
JD
1762 * See decode_nal_units().
1763 */
2c541554
AK
1764 pic->f.key_frame = 0;
1765 pic->mmco_reset = 0;
1766
1767 if ((ret = alloc_picture(h, pic)) < 0)
1768 return ret;
1769
1770 h->cur_pic_ptr = pic;
759001c5
AK
1771 unref_picture(h, &h->cur_pic);
1772 if ((ret = ref_picture(h, &h->cur_pic, h->cur_pic_ptr)) < 0)
1773 return ret;
2c541554 1774
0b499c9b
RB
1775 if (CONFIG_ERROR_RESILIENCE)
1776 ff_er_frame_start(&h->er);
0da71265 1777
2c541554 1778 assert(h->linesize && h->uvlinesize);
0da71265 1779
e5d40372 1780 for (i = 0; i < 16; i++) {
2c541554
AK
1781 h->block_offset[i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * h->linesize * ((scan8[i] - scan8[0]) >> 3);
1782 h->block_offset[48 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * h->linesize * ((scan8[i] - scan8[0]) >> 3);
0da71265 1783 }
e5d40372
DB
1784 for (i = 0; i < 16; i++) {
1785 h->block_offset[16 + i] =
2c541554 1786 h->block_offset[32 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * h->uvlinesize * ((scan8[i] - scan8[0]) >> 3);
e5d40372 1787 h->block_offset[48 + 16 + i] =
2c541554 1788 h->block_offset[48 + 32 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * h->uvlinesize * ((scan8[i] - scan8[0]) >> 3);
0da71265
MN
1789 }
1790
934b0821
LM
1791 /* can't be in alloc_tables because linesize isn't known there.
1792 * FIXME: redo bipred weight to not require extra buffer? */
2c541554
AK
1793 for (i = 0; i < h->slice_context_count; i++)
1794 if (h->thread_context[i]) {
1795 ret = alloc_scratch_buffers(h->thread_context[i], h->linesize);
1796 if (ret < 0)
1797 return ret;
1798 }
e5d40372
DB
1799
1800 /* Some macroblocks can be accessed before they're available in case
1801 * of lost slices, MBAFF or threading. */
1802 memset(h->slice_table, -1,
2c541554 1803 (h->mb_height * h->mb_stride - 1) * sizeof(*h->slice_table));
e5d40372
DB
1804
1805 // s->decode = (s->flags & CODEC_FLAG_PSNR) || !s->encoding ||
1806 // s->current_picture.f.reference /* || h->contains_intra */ || 1;
1807
1808 /* We mark the current picture as non-reference after allocating it, so
1809 * that if we break out due to an error it can be released automatically
1810 * in the next ff_MPV_frame_start().
f08fefc4
AK
1811 */
1812 h->cur_pic_ptr->reference = 0;
357282c6 1813
2c541554 1814 h->cur_pic_ptr->field_poc[0] = h->cur_pic_ptr->field_poc[1] = INT_MAX;
6a9c8594
AS
1815
1816 h->next_output_pic = NULL;
1817
2c541554 1818 assert(h->cur_pic_ptr->long_ref == 0);
357282c6 1819
af8aa846 1820 return 0;
0da71265
MN
1821}
1822
6a9c8594 1823/**
e5d40372
DB
1824 * Run setup operations that must be run after slice header decoding.
1825 * This includes finding the next displayed frame.
1826 *
1827 * @param h h264 master context
1828 * @param setup_finished enough NALs have been read that we can call
1829 * ff_thread_finish_setup()
1830 */
1831static void decode_postinit(H264Context *h, int setup_finished)
1832{
2c541554
AK
1833 Picture *out = h->cur_pic_ptr;
1834 Picture *cur = h->cur_pic_ptr;
6a9c8594 1835 int i, pics, out_of_order, out_idx;
adedd840 1836 int invalid = 0, cnt = 0;
6a9c8594 1837
2c541554 1838 h->cur_pic_ptr->f.pict_type = h->pict_type;
6a9c8594 1839
e5d40372
DB
1840 if (h->next_output_pic)
1841 return;
6a9c8594 1842
e5d40372
DB
1843 if (cur->field_poc[0] == INT_MAX || cur->field_poc[1] == INT_MAX) {
1844 /* FIXME: if we have two PAFF fields in one packet, we can't start
1845 * the next thread here. If we have one field per packet, we can.
1846 * The check in decode_nal_units() is not good enough to find this
1847 * yet, so we assume the worst for now. */
1848 // if (setup_finished)
2c541554 1849 // ff_thread_finish_setup(h->avctx);
6a9c8594
AS
1850 return;
1851 }
1852
657ccb5a
DB
1853 cur->f.interlaced_frame = 0;
1854 cur->f.repeat_pict = 0;
6a9c8594
AS
1855
1856 /* Signal interlacing information externally. */
e5d40372
DB
1857 /* Prioritize picture timing SEI information over used
1858 * decoding process if it exists. */
6a9c8594 1859
e5d40372
DB
1860 if (h->sps.pic_struct_present_flag) {
1861 switch (h->sei_pic_struct) {
6a9c8594
AS
1862 case SEI_PIC_STRUCT_FRAME:
1863 break;
1864 case SEI_PIC_STRUCT_TOP_FIELD:
1865 case SEI_PIC_STRUCT_BOTTOM_FIELD:
657ccb5a 1866 cur->f.interlaced_frame = 1;
6a9c8594
AS
1867 break;
1868 case SEI_PIC_STRUCT_TOP_BOTTOM:
1869 case SEI_PIC_STRUCT_BOTTOM_TOP:
a6931d8e 1870 if (FIELD_OR_MBAFF_PICTURE(h))
657ccb5a 1871 cur->f.interlaced_frame = 1;
6a9c8594
AS
1872 else
1873 // try to flag soft telecine progressive
657ccb5a 1874 cur->f.interlaced_frame = h->prev_interlaced_frame;
6a9c8594
AS
1875 break;
1876 case SEI_PIC_STRUCT_TOP_BOTTOM_TOP:
1877 case SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM:
e5d40372
DB
1878 /* Signal the possibility of telecined film externally
1879 * (pic_struct 5,6). From these hints, let the applications
1880 * decide if they apply deinterlacing. */
657ccb5a 1881 cur->f.repeat_pict = 1;
6a9c8594
AS
1882 break;
1883 case SEI_PIC_STRUCT_FRAME_DOUBLING:
657ccb5a 1884 cur->f.repeat_pict = 2;
6a9c8594
AS
1885 break;
1886 case SEI_PIC_STRUCT_FRAME_TRIPLING:
657ccb5a 1887 cur->f.repeat_pict = 4;
6a9c8594
AS
1888 break;
1889 }
1890
e5d40372
DB
1891 if ((h->sei_ct_type & 3) &&
1892 h->sei_pic_struct <= SEI_PIC_STRUCT_BOTTOM_TOP)
657ccb5a 1893 cur->f.interlaced_frame = (h->sei_ct_type & (1 << 1)) != 0;
e5d40372 1894 } else {
6a9c8594 1895 /* Derive interlacing flag from used decoding process. */
a6931d8e 1896 cur->f.interlaced_frame = FIELD_OR_MBAFF_PICTURE(h);
6a9c8594 1897 }
657ccb5a 1898 h->prev_interlaced_frame = cur->f.interlaced_frame;
6a9c8594 1899
e5d40372 1900 if (cur->field_poc[0] != cur->field_poc[1]) {
6a9c8594 1901 /* Derive top_field_first from field pocs. */
657ccb5a 1902 cur->f.top_field_first = cur->field_poc[0] < cur->field_poc[1];
e5d40372 1903 } else {
657ccb5a 1904 if (cur->f.interlaced_frame || h->sps.pic_struct_present_flag) {
e5d40372
DB
1905 /* Use picture timing SEI information. Even if it is a
1906 * information of a past frame, better than nothing. */
1907 if (h->sei_pic_struct == SEI_PIC_STRUCT_TOP_BOTTOM ||
1908 h->sei_pic_struct == SEI_PIC_STRUCT_TOP_BOTTOM_TOP)
657ccb5a 1909 cur->f.top_field_first = 1;
6a9c8594 1910 else
657ccb5a 1911 cur->f.top_field_first = 0;
e5d40372 1912 } else {
6a9c8594 1913 /* Most likely progressive */
657ccb5a 1914 cur->f.top_field_first = 0;
6a9c8594
AS
1915 }
1916 }
1917
e5d40372 1918 // FIXME do something with unavailable reference frames
6a9c8594
AS
1919
1920 /* Sort B-frames into display order */
1921
e5d40372 1922 if (h->sps.bitstream_restriction_flag &&
2c541554
AK
1923 h->avctx->has_b_frames < h->sps.num_reorder_frames) {
1924 h->avctx->has_b_frames = h->sps.num_reorder_frames;
1925 h->low_delay = 0;
6a9c8594
AS
1926 }
1927
2c541554 1928 if (h->avctx->strict_std_compliance >= FF_COMPLIANCE_STRICT &&
e5d40372 1929 !h->sps.bitstream_restriction_flag) {
2c541554
AK
1930 h->avctx->has_b_frames = MAX_DELAYED_PIC_COUNT - 1;
1931 h->low_delay = 0;
6a9c8594
AS
1932 }
1933
1934 pics = 0;
e5d40372
DB
1935 while (h->delayed_pic[pics])
1936 pics++;
6a9c8594
AS
1937
1938 assert(pics <= MAX_DELAYED_PIC_COUNT);
1939
1940 h->delayed_pic[pics++] = cur;
759001c5
AK
1941 if (cur->reference == 0)
1942 cur->reference = DELAYED_PIC_REF;
6a9c8594 1943
adedd840
RB
1944 /* Frame reordering. This code takes pictures from coding order and sorts
1945 * them by their incremental POC value into display order. It supports POC
1946 * gaps, MMCO reset codes and random resets.
1947 * A "display group" can start either with a IDR frame (f.key_frame = 1),
1948 * and/or can be closed down with a MMCO reset code. In sequences where
1949 * there is no delay, we can't detect that (since the frame was already
1950 * output to the user), so we also set h->mmco_reset to detect the MMCO
1951 * reset code.
2c541554 1952 * FIXME: if we detect insufficient delays (as per h->avctx->has_b_frames),
adedd840
RB
1953 * we increase the delay between input and output. All frames affected by
1954 * the lag (e.g. those that should have been output before another frame
1955 * that we already returned to the user) will be dropped. This is a bug
1956 * that we will fix later. */
1957 for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++) {
1958 cnt += out->poc < h->last_pocs[i];
1959 invalid += out->poc == INT_MIN;
1960 }
e5d40372
DB
1961 if (!h->mmco_reset && !cur->f.key_frame &&
1962 cnt + invalid == MAX_DELAYED_PIC_COUNT && cnt > 0) {
adedd840
RB
1963 h->mmco_reset = 2;
1964 if (pics > 1)
1965 h->delayed_pic[pics - 2]->mmco_reset = 2;
1966 }
1967 if (h->mmco_reset || cur->f.key_frame) {
1968 for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++)
1969 h->last_pocs[i] = INT_MIN;
1970 cnt = 0;
1971 invalid = MAX_DELAYED_PIC_COUNT;
1972 }
e5d40372 1973 out = h->delayed_pic[0];
6a9c8594 1974 out_idx = 0;
e5d40372
DB
1975 for (i = 1; i < MAX_DELAYED_PIC_COUNT &&
1976 h->delayed_pic[i] &&
1977 !h->delayed_pic[i - 1]->mmco_reset &&
1978 !h->delayed_pic[i]->f.key_frame;
1979 i++)
1980 if (h->delayed_pic[i]->poc < out->poc) {
1981 out = h->delayed_pic[i];
6a9c8594
AS
1982 out_idx = i;
1983 }
2c541554 1984 if (h->avctx->has_b_frames == 0 &&
e5d40372 1985 (h->delayed_pic[0]->f.key_frame || h->mmco_reset))
adedd840 1986 h->next_outputed_poc = INT_MIN;
e5d40372
DB
1987 out_of_order = !out->f.key_frame && !h->mmco_reset &&
1988 (out->poc < h->next_outputed_poc);
6a9c8594 1989
e5d40372 1990 if (h->sps.bitstream_restriction_flag &&
2c541554
AK
1991 h->avctx->has_b_frames >= h->sps.num_reorder_frames) {
1992 } else if (out_of_order && pics - 1 == h->avctx->has_b_frames &&
1993 h->avctx->has_b_frames < MAX_DELAYED_PIC_COUNT) {
ea2bb12e 1994 if (invalid + cnt < MAX_DELAYED_PIC_COUNT) {
2c541554 1995 h->avctx->has_b_frames = FFMAX(h->avctx->has_b_frames, cnt);
ea2bb12e 1996 }
2c541554
AK
1997 h->low_delay = 0;
1998 } else if (h->low_delay &&
e5d40372
DB
1999 ((h->next_outputed_poc != INT_MIN &&
2000 out->poc > h->next_outputed_poc + 2) ||
ea2bb12e 2001 cur->f.pict_type == AV_PICTURE_TYPE_B)) {
2c541554
AK
2002 h->low_delay = 0;
2003 h->avctx->has_b_frames++;
6a9c8594
AS
2004 }
2005
2c541554 2006 if (pics > h->avctx->has_b_frames) {
759001c5 2007 out->reference &= ~DELAYED_PIC_REF;
e5d40372
DB
2008 // for frame threading, the owner must be the second field's thread or
2009 // else the first thread can release the picture and reuse it unsafely
e5d40372
DB
2010 for (i = out_idx; h->delayed_pic[i]; i++)
2011 h->delayed_pic[i] = h->delayed_pic[i + 1];
2012 }
2013 memmove(h->last_pocs, &h->last_pocs[1],
2014 sizeof(*h->last_pocs) * (MAX_DELAYED_PIC_COUNT - 1));
adedd840 2015 h->last_pocs[MAX_DELAYED_PIC_COUNT - 1] = cur->poc;
2c541554 2016 if (!out_of_order && pics > h->avctx->has_b_frames) {
6a9c8594 2017 h->next_output_pic = out;
adedd840
RB
2018 if (out->mmco_reset) {
2019 if (out_idx > 0) {
e5d40372 2020 h->next_outputed_poc = out->poc;
adedd840
RB
2021 h->delayed_pic[out_idx - 1]->mmco_reset = out->mmco_reset;
2022 } else {
2023 h->next_outputed_poc = INT_MIN;
2024 }
2025 } else {
0b4c3232
RB
2026 if (out_idx == 0 && pics > 1 && h->delayed_pic[0]->f.key_frame) {
2027 h->next_outputed_poc = INT_MIN;
2028 } else {
2029 h->next_outputed_poc = out->poc;
2030 }
adedd840
RB
2031 }
2032 h->mmco_reset = 0;
e5d40372 2033 } else {
2c541554 2034 av_log(h->avctx, AV_LOG_DEBUG, "no picture\n");
6a9c8594
AS
2035 }
2036
05fa79b8 2037 if (setup_finished && !h->avctx->hwaccel)
2c541554 2038 ff_thread_finish_setup(h->avctx);
6a9c8594
AS
2039}
2040
76741b0e
BC
2041static av_always_inline void backup_mb_border(H264Context *h, uint8_t *src_y,
2042 uint8_t *src_cb, uint8_t *src_cr,
e5d40372
DB
2043 int linesize, int uvlinesize,
2044 int simple)
76741b0e 2045{
0b69d625 2046 uint8_t *top_border;
5f7f9719 2047 int top_idx = 1;
6e3ef511 2048 const int pixel_shift = h->pixel_shift;
23e85be5 2049 int chroma444 = CHROMA444(h);
e962bd08 2050 int chroma422 = CHROMA422(h);
115329f1 2051
e5d40372 2052 src_y -= linesize;
53c05b1e
MN
2053 src_cb -= uvlinesize;
2054 src_cr -= uvlinesize;
2055
7bece9b2 2056 if (!simple && FRAME_MBAFF(h)) {
2c541554 2057 if (h->mb_y & 1) {
82313eaa 2058 if (!MB_MBAFF(h)) {
2c541554 2059 top_border = h->top_borders[0][h->mb_x];
e5d40372 2060 AV_COPY128(top_border, src_y + 15 * linesize);
6e3ef511 2061 if (pixel_shift)
e5d40372 2062 AV_COPY128(top_border + 16, src_y + 15 * linesize + 16);
2c541554 2063 if (simple || !CONFIG_GRAY || !(h->flags & CODEC_FLAG_GRAY)) {
e5d40372
DB
2064 if (chroma444) {
2065 if (pixel_shift) {
2066 AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize);
2067 AV_COPY128(top_border + 48, src_cb + 15 * uvlinesize + 16);
2068 AV_COPY128(top_border + 64, src_cr + 15 * uvlinesize);
2069 AV_COPY128(top_border + 80, src_cr + 15 * uvlinesize + 16);
c90b9442 2070 } else {
e5d40372
DB
2071 AV_COPY128(top_border + 16, src_cb + 15 * uvlinesize);
2072 AV_COPY128(top_border + 32, src_cr + 15 * uvlinesize);
c90b9442 2073 }
e5d40372 2074 } else if (chroma422) {
76741b0e 2075 if (pixel_shift) {
e5d40372
DB
2076 AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize);
2077 AV_COPY128(top_border + 48, src_cr + 15 * uvlinesize);
76741b0e 2078 } else {
e5d40372
DB
2079 AV_COPY64(top_border + 16, src_cb + 15 * uvlinesize);
2080 AV_COPY64(top_border + 24, src_cr + 15 * uvlinesize);
76741b0e 2081 }
6e3ef511 2082 } else {
c90b9442 2083 if (pixel_shift) {
e5d40372
DB
2084 AV_COPY128(top_border + 32, src_cb + 7 * uvlinesize);
2085 AV_COPY128(top_border + 48, src_cr + 7 * uvlinesize);
c90b9442 2086 } else {
e5d40372
DB
2087 AV_COPY64(top_border + 16, src_cb + 7 * uvlinesize);
2088 AV_COPY64(top_border + 24, src_cr + 7 * uvlinesize);
c90b9442 2089 }
6e3ef511 2090 }
5f7f9719
MN
2091 }
2092 }
82313eaa 2093 } else if (MB_MBAFF(h)) {
c988f975 2094 top_idx = 0;
e5d40372 2095 } else
c988f975 2096 return;
5f7f9719
MN
2097 }
2098
2c541554 2099 top_border = h->top_borders[top_idx][h->mb_x];
09f21198 2100 /* There are two lines saved, the line above the top macroblock
e5d40372
DB
2101 * of a pair, and the line above the bottom macroblock. */
2102 AV_COPY128(top_border, src_y + 16 * linesize);
6e3ef511 2103 if (pixel_shift)
e5d40372
DB
2104 AV_COPY128(top_border + 16, src_y + 16 * linesize + 16);
2105
2c541554 2106 if (simple || !CONFIG_GRAY || !(h->flags & CODEC_FLAG_GRAY)) {
e5d40372
DB
2107 if (chroma444) {
2108 if (pixel_shift) {
2109 AV_COPY128(top_border + 32, src_cb + 16 * linesize);
2110 AV_COPY128(top_border + 48, src_cb + 16 * linesize + 16);
2111 AV_COPY128(top_border + 64, src_cr + 16 * linesize);
2112 AV_COPY128(top_border + 80, src_cr + 16 * linesize + 16);
c90b9442 2113 } else {
e5d40372
DB
2114 AV_COPY128(top_border + 16, src_cb + 16 * linesize);
2115 AV_COPY128(top_border + 32, src_cr + 16 * linesize);
c90b9442 2116 }
e5d40372 2117 } else if (chroma422) {
76741b0e 2118 if (pixel_shift) {
e5d40372
DB
2119 AV_COPY128(top_border + 32, src_cb + 16 * uvlinesize);
2120 AV_COPY128(top_border + 48, src_cr + 16 * uvlinesize);
76741b0e 2121 } else {
e5d40372
DB
2122 AV_COPY64(top_border + 16, src_cb + 16 * uvlinesize);
2123 AV_COPY64(top_border + 24, src_cr + 16 * uvlinesize);
76741b0e 2124 }
6e3ef511 2125 } else {
c90b9442 2126 if (pixel_shift) {
e5d40372
DB
2127 AV_COPY128(top_border + 32, src_cb + 8 * uvlinesize);
2128 AV_COPY128(top_border + 48, src_cr + 8 * uvlinesize);
c90b9442 2129 } else {
e5d40372
DB
2130 AV_COPY64(top_border + 16, src_cb + 8 * uvlinesize);
2131 AV_COPY64(top_border + 24, src_cr + 8 * uvlinesize);
c90b9442 2132 }
6e3ef511 2133 }
53c05b1e
MN
2134 }
2135}
2136
bbdd52ed 2137static av_always_inline void xchg_mb_border(H264Context *h, uint8_t *src_y,
e5d40372
DB
2138 uint8_t *src_cb, uint8_t *src_cr,
2139 int linesize, int uvlinesize,
2140 int xchg, int chroma444,
2141 int simple, int pixel_shift)
2142{
4e987f82 2143 int deblock_topleft;
b69378e2 2144 int deblock_top;
5f7f9719 2145 int top_idx = 1;
1e4f1c56
AS
2146 uint8_t *top_border_m1;
2147 uint8_t *top_border;
5f7f9719 2148
7bece9b2 2149 if (!simple && FRAME_MBAFF(h)) {
2c541554 2150 if (h->mb_y & 1) {
82313eaa 2151 if (!MB_MBAFF(h))
c988f975 2152 return;
e5d40372 2153 } else {
82313eaa 2154 top_idx = MB_MBAFF(h) ? 0 : 1;
5f7f9719 2155 }
5f7f9719 2156 }
b69378e2 2157
e5d40372 2158 if (h->deblocking_filter == 2) {
2c541554 2159 deblock_topleft = h->slice_table[h->mb_xy - 1 - h->mb_stride] == h->slice_num;
4e987f82 2160 deblock_top = h->top_type;
b69378e2 2161 } else {
2c541554 2162 deblock_topleft = (h->mb_x > 0);
da6be8fc 2163 deblock_top = (h->mb_y > !!MB_FIELD(h));
b69378e2 2164 }
53c05b1e 2165
e5d40372 2166 src_y -= linesize + 1 + pixel_shift;
6e3ef511
OA
2167 src_cb -= uvlinesize + 1 + pixel_shift;
2168 src_cr -= uvlinesize + 1 + pixel_shift;
53c05b1e 2169
2c541554
AK
2170 top_border_m1 = h->top_borders[top_idx][h->mb_x - 1];
2171 top_border = h->top_borders[top_idx][h->mb_x];
1e4f1c56 2172
e5d40372
DB
2173#define XCHG(a, b, xchg) \
2174 if (pixel_shift) { \
2175 if (xchg) { \
2176 AV_SWAP64(b + 0, a + 0); \
2177 AV_SWAP64(b + 8, a + 8); \
2178 } else { \
2179 AV_COPY128(b, a); \
2180 } \
2181 } else if (xchg) \
2182 AV_SWAP64(b, a); \
2183 else \
2184 AV_COPY64(b, a);
2185
2186 if (deblock_top) {
2187 if (deblock_topleft) {
2188 XCHG(top_border_m1 + (8 << pixel_shift),
2189 src_y - (7 << pixel_shift), 1);
c988f975 2190 }
6e3ef511
OA
2191 XCHG(top_border + (0 << pixel_shift), src_y + (1 << pixel_shift), xchg);
2192 XCHG(top_border + (8 << pixel_shift), src_y + (9 << pixel_shift), 1);
2c541554
AK
2193 if (h->mb_x + 1 < h->mb_width) {
2194 XCHG(h->top_borders[top_idx][h->mb_x + 1],
e5d40372 2195 src_y + (17 << pixel_shift), 1);
43efd19a 2196 }
53c05b1e 2197 }
2c541554 2198 if (simple || !CONFIG_GRAY || !(h->flags & CODEC_FLAG_GRAY)) {
e5d40372
DB
2199 if (chroma444) {
2200 if (deblock_topleft) {
c90b9442
JGG
2201 XCHG(top_border_m1 + (24 << pixel_shift), src_cb - (7 << pixel_shift), 1);
2202 XCHG(top_border_m1 + (40 << pixel_shift), src_cr - (7 << pixel_shift), 1);
2203 }
2204 XCHG(top_border + (16 << pixel_shift), src_cb + (1 << pixel_shift), xchg);
2205 XCHG(top_border + (24 << pixel_shift), src_cb + (9 << pixel_shift), 1);
2206 XCHG(top_border + (32 << pixel_shift), src_cr + (1 << pixel_shift), xchg);
2207 XCHG(top_border + (40 << pixel_shift), src_cr + (9 << pixel_shift), 1);
2c541554
AK
2208 if (h->mb_x + 1 < h->mb_width) {
2209 XCHG(h->top_borders[top_idx][h->mb_x + 1] + (16 << pixel_shift), src_cb + (17 << pixel_shift), 1);
2210 XCHG(h->top_borders[top_idx][h->mb_x + 1] + (32 << pixel_shift), src_cr + (17 << pixel_shift), 1);
c90b9442
JGG
2211 }
2212 } else {
e5d40372
DB
2213 if (deblock_top) {
2214 if (deblock_topleft) {
c90b9442
JGG
2215 XCHG(top_border_m1 + (16 << pixel_shift), src_cb - (7 << pixel_shift), 1);
2216 XCHG(top_border_m1 + (24 << pixel_shift), src_cr - (7 << pixel_shift), 1);
2217 }
e5d40372
DB
2218 XCHG(top_border + (16 << pixel_shift), src_cb + 1 + pixel_shift, 1);
2219 XCHG(top_border + (24 << pixel_shift), src_cr + 1 + pixel_shift, 1);
c988f975 2220 }
53c05b1e 2221 }
53c05b1e
MN
2222 }
2223}
2224
88bd7fdc 2225static av_always_inline int dctcoef_get(int16_t *mb, int high_bit_depth,
e5d40372
DB
2226 int index)
2227{
6e3ef511 2228 if (high_bit_depth) {
e5d40372 2229 return AV_RN32A(((int32_t *)mb) + index);
6e3ef511
OA
2230 } else
2231 return AV_RN16A(mb + index);
2232}
2233
88bd7fdc 2234static av_always_inline void dctcoef_set(int16_t *mb, int high_bit_depth,
e5d40372
DB
2235 int index, int value)
2236{
6e3ef511 2237 if (high_bit_depth) {
e5d40372 2238 AV_WN32A(((int32_t *)mb) + index, value);
6e3ef511
OA
2239 } else
2240 AV_WN16A(mb + index, value);
2241}
2242
e5d40372
DB
2243static av_always_inline void hl_decode_mb_predict_luma(H264Context *h,
2244 int mb_type, int is_h264,
2245 int simple,
2246 int transform_bypass,
2247 int pixel_shift,
2248 int *block_offset,
2249 int linesize,
2250 uint8_t *dest_y, int p)
c90b9442 2251{
88bd7fdc
DB
2252 void (*idct_add)(uint8_t *dst, int16_t *block, int stride);
2253 void (*idct_dc_add)(uint8_t *dst, int16_t *block, int stride);
c90b9442 2254 int i;
2c541554 2255 int qscale = p == 0 ? h->qscale : h->chroma_qp[p - 1];
e5d40372
DB
2256 block_offset += 16 * p;
2257 if (IS_INTRA4x4(mb_type)) {
2491f9ee
AK
2258 if (IS_8x8DCT(mb_type)) {
2259 if (transform_bypass) {
2260 idct_dc_add =
62844c3f 2261 idct_add = h->h264dsp.h264_add_pixels8_clear;
2491f9ee
AK
2262 } else {
2263 idct_dc_add = h->h264dsp.h264_idct8_dc_add;
2264 idct_add = h->h264dsp.h264_idct8_add;
2265 }
2266 for (i = 0; i < 16; i += 4) {
2267 uint8_t *const ptr = dest_y + block_offset[i];
2268 const int dir = h->intra4x4_pred_mode_cache[scan8[i]];
2269 if (transform_bypass && h->sps.profile_idc == 244 && dir <= 1) {
2270 h->hpc.pred8x8l_add[dir](ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize);
e5d40372 2271 } else {
2491f9ee
AK
2272 const int nnz = h->non_zero_count_cache[scan8[i + p * 16]];
2273 h->hpc.pred8x8l[dir](ptr, (h->topleft_samples_available << i) & 0x8000,
2274 (h->topright_samples_available << i) & 0x4000, linesize);
2275 if (nnz) {
2276 if (nnz == 1 && dctcoef_get(h->mb, pixel_shift, i * 16 + p * 256))
2277 idct_dc_add(ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize);
2278 else
2279 idct_add(ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize);
c90b9442
JGG
2280 }
2281 }
2491f9ee
AK
2282 }
2283 } else {
2284 if (transform_bypass) {
2285 idct_dc_add =
62844c3f 2286 idct_add = h->h264dsp.h264_add_pixels4_clear;
e5d40372 2287 } else {
2491f9ee
AK
2288 idct_dc_add = h->h264dsp.h264_idct_dc_add;
2289 idct_add = h->h264dsp.h264_idct_add;
2290 }
2291 for (i = 0; i < 16; i++) {
2292 uint8_t *const ptr = dest_y + block_offset[i];
2293 const int dir = h->intra4x4_pred_mode_cache[scan8[i]];
c90b9442 2294
2491f9ee
AK
2295 if (transform_bypass && h->sps.profile_idc == 244 && dir <= 1) {
2296 h->hpc.pred4x4_add[dir](ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize);
2297 } else {
2298 uint8_t *topright;
2299 int nnz, tr;
2300 uint64_t tr_high;
2301 if (dir == DIAG_DOWN_LEFT_PRED || dir == VERT_LEFT_PRED) {
2302 const int topright_avail = (h->topright_samples_available << i) & 0x8000;
2c541554 2303 assert(h->mb_y || linesize <= block_offset[i]);
2491f9ee
AK
2304 if (!topright_avail) {
2305 if (pixel_shift) {
2306 tr_high = ((uint16_t *)ptr)[3 - linesize / 2] * 0x0001000100010001ULL;
2307 topright = (uint8_t *)&tr_high;
2308 } else {
2309 tr = ptr[3 - linesize] * 0x01010101u;
2310 topright = (uint8_t *)&tr;
2311 }
e5d40372 2312 } else
2491f9ee
AK
2313 topright = ptr + (4 << pixel_shift) - linesize;
2314 } else
2315 topright = NULL;
2316
2317 h->hpc.pred4x4[dir](ptr, topright, linesize);
2318 nnz = h->non_zero_count_cache[scan8[i + p * 16]];
2319 if (nnz) {
2320 if (is_h264) {
2321 if (nnz == 1 && dctcoef_get(h->mb, pixel_shift, i * 16 + p * 256))
2322 idct_dc_add(ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize);
2323 else
2324 idct_add(ptr, h->mb + (i * 16 + p * 256 << pixel_shift), linesize);
2325 } else if (CONFIG_SVQ3_DECODER)
2326 ff_svq3_add_idct_c(ptr, h->mb + i * 16 + p * 256, linesize, qscale, 0);
c90b9442
JGG
2327 }
2328 }
2329 }
2330 }
e5d40372
DB
2331 } else {
2332 h->hpc.pred16x16[h->intra16x16_pred_mode](dest_y, linesize);
2333 if (is_h264) {
2334 if (h->non_zero_count_cache[scan8[LUMA_DC_BLOCK_INDEX + p]]) {
2335 if (!transform_bypass)
2336 h->h264dsp.h264_luma_dc_dequant_idct(h->mb + (p * 256 << pixel_shift),
2337 h->mb_luma_dc[p],
2338 h->dequant4_coeff[p][qscale][0]);
2339 else {
2340 static const uint8_t dc_mapping[16] = {
2341 0 * 16, 1 * 16, 4 * 16, 5 * 16,
2342 2 * 16, 3 * 16, 6 * 16, 7 * 16,
2343 8 * 16, 9 * 16, 12 * 16, 13 * 16,
2344 10 * 16, 11 * 16, 14 * 16, 15 * 16 };
2345 for (i = 0; i < 16; i++)
2346 dctcoef_set(h->mb + (p * 256 << pixel_shift),
2347 pixel_shift, dc_mapping[i],
2348 dctcoef_get(h->mb_luma_dc[p],
2349 pixel_shift, i));
c90b9442
JGG
2350 }
2351 }
301fb921 2352 } else if (CONFIG_SVQ3_DECODER)
e5d40372
DB
2353 ff_svq3_luma_dc_dequant_idct_c(h->mb + p * 256,
2354 h->mb_luma_dc[p], qscale);
c90b9442
JGG
2355 }
2356}
2357
e5d40372
DB
2358static av_always_inline void hl_decode_mb_idct_luma(H264Context *h, int mb_type,
2359 int is_h264, int simple,
2360 int transform_bypass,
2361 int pixel_shift,
2362 int *block_offset,
2363 int linesize,
2364 uint8_t *dest_y, int p)
c90b9442 2365{
88bd7fdc 2366 void (*idct_add)(uint8_t *dst, int16_t *block, int stride);
c90b9442 2367 int i;
e5d40372
DB
2368 block_offset += 16 * p;
2369 if (!IS_INTRA4x4(mb_type)) {
2370 if (is_h264) {
2371 if (IS_INTRA16x16(mb_type)) {
2372 if (transform_bypass) {
2373 if (h->sps.profile_idc == 244 &&
2374 (h->intra16x16_pred_mode == VERT_PRED8x8 ||
2375 h->intra16x16_pred_mode == HOR_PRED8x8)) {
2376 h->hpc.pred16x16_add[h->intra16x16_pred_mode](dest_y, block_offset,
2377 h->mb + (p * 256 << pixel_shift),
2378 linesize);
2379 } else {
2380 for (i = 0; i < 16; i++)
2381 if (h->non_zero_count_cache[scan8[i + p * 16]] ||
2382 dctcoef_get(h->mb, pixel_shift, i * 16 + p * 256))
62844c3f
RB
2383 h->h264dsp.h264_add_pixels4_clear(dest_y + block_offset[i],
2384 h->mb + (i * 16 + p * 256 << pixel_shift),
2385 linesize);
c90b9442 2386 }
e5d40372
DB
2387 } else {
2388 h->h264dsp.h264_idct_add16intra(dest_y, block_offset,
2389 h->mb + (p * 256 << pixel_shift),
2390 linesize,
2391 h->non_zero_count_cache + p * 5 * 8);
c90b9442 2392 }
e5d40372
DB
2393 } else if (h->cbp & 15) {
2394 if (transform_bypass) {
c90b9442 2395 const int di = IS_8x8DCT(mb_type) ? 4 : 1;
62844c3f
RB
2396 idct_add = IS_8x8DCT(mb_type) ? h->h264dsp.h264_add_pixels8_clear
2397 : h->h264dsp.h264_add_pixels4_clear;
e5d40372
DB
2398 for (i = 0; i < 16; i += di)
2399 if (h->non_zero_count_cache[scan8[i + p * 16]])
2400 idct_add(dest_y + block_offset[i],
2401 h->mb + (i * 16 + p * 256 << pixel_shift),
2402 linesize);
2403 } else {
2404 if (IS_8x8DCT(mb_type))
2405 h->h264dsp.h264_idct8_add4(dest_y, block_offset,
2406 h->mb + (p * 256 << pixel_shift),
2407 linesize,
2408 h->non_zero_count_cache + p * 5 * 8);
2409 else
2410 h->h264dsp.h264_idct_add16(dest_y, block_offset,
2411 h->mb + (p * 256 << pixel_shift),
2412 linesize,
2413 h->non_zero_count_cache + p * 5 * 8);
c90b9442
JGG
2414 }
2415 }
301fb921 2416 } else if (CONFIG_SVQ3_DECODER) {
e5d40372
DB
2417 for (i = 0; i < 16; i++)
2418 if (h->non_zero_count_cache[scan8[i + p * 16]] || h->mb[i * 16 + p * 256]) {
2419 // FIXME benchmark weird rule, & below
2420 uint8_t *const ptr = dest_y + block_offset[i];
2421 ff_svq3_add_idct_c(ptr, h->mb + i * 16 + p * 256, linesize,
2c541554 2422 h->qscale, IS_INTRA(mb_type) ? 1 : 0);
c90b9442 2423 }
c90b9442
JGG
2424 }
2425 }
2426}
2427
28fff0d9
MR
2428#define BITS 8
2429#define SIMPLE 1
2430#include "h264_mb_template.c"
e5d40372 2431
28fff0d9
MR
2432#undef BITS
2433#define BITS 16
2434#include "h264_mb_template.c"
bd91fee3 2435
28fff0d9
MR
2436#undef SIMPLE
2437#define SIMPLE 0
2438#include "h264_mb_template.c"
c90b9442 2439
e5d40372
DB
2440void ff_h264_hl_decode_mb(H264Context *h)
2441{
e5d40372 2442 const int mb_xy = h->mb_xy;
759001c5 2443 const int mb_type = h->cur_pic.mb_type[mb_xy];
2c541554 2444 int is_complex = CONFIG_SMALL || h->is_complex || IS_INTRA_PCM(mb_type) || h->qscale == 0;
bd91fee3 2445
23e85be5 2446 if (CHROMA444(h)) {
e5d40372 2447 if (is_complex || h->pixel_shift)
c90b9442
JGG
2448 hl_decode_mb_444_complex(h);
2449 else
28fff0d9 2450 hl_decode_mb_444_simple_8(h);
c90b9442 2451 } else if (is_complex) {
bd91fee3 2452 hl_decode_mb_complex(h);
6e3ef511
OA
2453 } else if (h->pixel_shift) {
2454 hl_decode_mb_simple_16(h);
2455 } else
2456 hl_decode_mb_simple_8(h);
bd91fee3
AS
2457}
2458
e5d40372
DB
2459static int pred_weight_table(H264Context *h)
2460{
0da71265 2461 int list, i;
9f2d1b4f 2462 int luma_def, chroma_def;
115329f1 2463
e5d40372
DB
2464 h->use_weight = 0;
2465 h->use_weight_chroma = 0;
2c541554 2466 h->luma_log2_weight_denom = get_ue_golomb(&h->gb);
e5d40372 2467 if (h->sps.chroma_format_idc)
2c541554 2468 h->chroma_log2_weight_denom = get_ue_golomb(&h->gb);
e5d40372
DB
2469 luma_def = 1 << h->luma_log2_weight_denom;
2470 chroma_def = 1 << h->chroma_log2_weight_denom;
0da71265 2471
e5d40372 2472 for (list = 0; list < 2; list++) {
cb99c652
GB
2473 h->luma_weight_flag[list] = 0;
2474 h->chroma_weight_flag[list] = 0;
e5d40372 2475 for (i = 0; i < h->ref_count[list]; i++) {
0da71265 2476 int luma_weight_flag, chroma_weight_flag;
115329f1 2477
2c541554 2478 luma_weight_flag = get_bits1(&h->gb);
e5d40372 2479 if (luma_weight_flag) {
2c541554
AK
2480 h->luma_weight[i][list][0] = get_se_golomb(&h->gb);
2481 h->luma_weight[i][list][1] = get_se_golomb(&h->gb);
e5d40372
DB
2482 if (h->luma_weight[i][list][0] != luma_def ||
2483 h->luma_weight[i][list][1] != 0) {
2484 h->use_weight = 1;
2485 h->luma_weight_flag[list] = 1;
cb99c652 2486 }
e5d40372
DB
2487 } else {
2488 h->luma_weight[i][list][0] = luma_def;
2489 h->luma_weight[i][list][1] = 0;
0da71265
MN
2490 }
2491
e5d40372 2492 if (h->sps.chroma_format_idc) {
2c541554 2493 chroma_weight_flag = get_bits1(&h->gb);
e5d40372 2494 if (chroma_weight_flag) {
fef744d4 2495 int j;
e5d40372 2496 for (j = 0; j < 2; j++) {
2c541554
AK
2497 h->chroma_weight[i][list][j][0] = get_se_golomb(&h->gb);
2498 h->chroma_weight[i][list][j][1] = get_se_golomb(&h->gb);
e5d40372
DB
2499 if (h->chroma_weight[i][list][j][0] != chroma_def ||
2500 h->chroma_weight[i][list][j][1] != 0) {
2501 h->use_weight_chroma = 1;
2502 h->chroma_weight_flag[list] = 1;
cb99c652 2503 }
fef744d4 2504 }
e5d40372 2505 } else {
fef744d4 2506 int j;
e5d40372
DB
2507 for (j = 0; j < 2; j++) {
2508 h->chroma_weight[i][list][j][0] = chroma_def;
2509 h->chroma_weight[i][list][j][1] = 0;
fef744d4 2510 }
0da71265
MN
2511 }
2512 }
2513 }
e5d40372
DB
2514 if (h->slice_type_nos != AV_PICTURE_TYPE_B)
2515 break;
0da71265 2516 }
e5d40372 2517 h->use_weight = h->use_weight || h->use_weight_chroma;
0da71265
MN
2518 return 0;
2519}
2520
1052b76f
MN
2521/**
2522 * Initialize implicit_weight table.
6da88bd3 2523 * @param field 0/1 initialize the weight for interlaced MBAFF
1052b76f
MN
2524 * -1 initializes the rest
2525 */
e5d40372
DB
2526static void implicit_weight_table(H264Context *h, int field)
2527{
1052b76f 2528 int ref0, ref1, i, cur_poc, ref_start, ref_count0, ref_count1;
9f2d1b4f 2529
ce09f927
GB
2530 for (i = 0; i < 2; i++) {
2531 h->luma_weight_flag[i] = 0;
2532 h->chroma_weight_flag[i] = 0;
2533 }
2534
e5d40372 2535 if (field < 0) {
2c541554
AK
2536 if (h->picture_structure == PICT_FRAME) {
2537 cur_poc = h->cur_pic_ptr->poc;
4418aa9c 2538 } else {
2c541554 2539 cur_poc = h->cur_pic_ptr->field_poc[h->picture_structure - 1];
4418aa9c 2540 }
7bece9b2 2541 if (h->ref_count[0] == 1 && h->ref_count[1] == 1 && !FRAME_MBAFF(h) &&
e5d40372
DB
2542 h->ref_list[0][0].poc + h->ref_list[1][0].poc == 2 * cur_poc) {
2543 h->use_weight = 0;
2544 h->use_weight_chroma = 0;
2545 return;
2546 }
2547 ref_start = 0;
2548 ref_count0 = h->ref_count[0];
2549 ref_count1 = h->ref_count[1];
2550 } else {
2c541554 2551 cur_poc = h->cur_pic_ptr->field_poc[field];
e5d40372
DB
2552 ref_start = 16;
2553 ref_count0 = 16 + 2 * h->ref_count[0];
2554 ref_count1 = 16 + 2 * h->ref_count[1];
1052b76f 2555 }
9f2d1b4f 2556
e5d40372
DB
2557 h->use_weight = 2;
2558 h->use_weight_chroma = 2;
2559 h->luma_log2_weight_denom = 5;
2560 h->chroma_log2_weight_denom = 5;
9f2d1b4f 2561
e5d40372 2562 for (ref0 = ref_start; ref0 < ref_count0; ref0++) {
9f2d1b4f 2563 int poc0 = h->ref_list[0][ref0].poc;
e5d40372 2564 for (ref1 = ref_start; ref1 < ref_count1; ref1++) {
87cf70eb
JD
2565 int w = 32;
2566 if (!h->ref_list[0][ref0].long_ref && !h->ref_list[1][ref1].long_ref) {
2567 int poc1 = h->ref_list[1][ref1].poc;
e5d40372
DB
2568 int td = av_clip(poc1 - poc0, -128, 127);
2569 if (td) {
87cf70eb
JD
2570 int tb = av_clip(cur_poc - poc0, -128, 127);
2571 int tx = (16384 + (FFABS(td) >> 1)) / td;
e5d40372
DB
2572 int dist_scale_factor = (tb * tx + 32) >> 8;
2573 if (dist_scale_factor >= -64 && dist_scale_factor <= 128)
87cf70eb
JD
2574 w = 64 - dist_scale_factor;
2575 }
1052b76f 2576 }
e5d40372
DB
2577 if (field < 0) {
2578 h->implicit_weight[ref0][ref1][0] =
2579 h->implicit_weight[ref0][ref1][1] = w;
2580 } else {
2581 h->implicit_weight[ref0][ref1][field] = w;
72f86ec0 2582 }
9f2d1b4f
LM
2583 }
2584 }
2585}
2586
8fd57a66 2587/**
5175b937 2588 * instantaneous decoder refresh.
0da71265 2589 */
e5d40372
DB
2590static void idr(H264Context *h)
2591{
ea6f00c4 2592 ff_h264_remove_all_refs(h);
e5d40372
DB
2593 h->prev_frame_num = 0;
2594 h->prev_frame_num_offset = 0;
2595 h->prev_poc_msb =
2596 h->prev_poc_lsb = 0;
0da71265
MN
2597}
2598
7c33ad19 2599/* forget old pics after a seek */
9e696d2e 2600static void flush_change(H264Context *h)
e5d40372 2601{
7c33ad19 2602 int i;
adedd840
RB
2603 for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++)
2604 h->last_pocs[i] = INT_MIN;
e5d40372 2605 h->outputed_poc = h->next_outputed_poc = INT_MIN;
b19d493f 2606 h->prev_interlaced_frame = 1;
7c33ad19 2607 idr(h);
2c541554 2608 if (h->cur_pic_ptr)
759001c5 2609 h->cur_pic_ptr->reference = 0;
2c541554 2610 h->first_field = 0;
9e696d2e
JG
2611 memset(h->ref_list[0], 0, sizeof(h->ref_list[0]));
2612 memset(h->ref_list[1], 0, sizeof(h->ref_list[1]));
2613 memset(h->default_ref_list[0], 0, sizeof(h->default_ref_list[0]));
2614 memset(h->default_ref_list[1], 0, sizeof(h->default_ref_list[1]));
9c095463 2615 ff_h264_reset_sei(h);
9e696d2e
JG
2616}
2617
2618/* forget old pics after a seek */
2619static void flush_dpb(AVCodecContext *avctx)
2620{
2621 H264Context *h = avctx->priv_data;
2622 int i;
2623
2624 for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++) {
2625 if (h->delayed_pic[i])
759001c5 2626 h->delayed_pic[i]->reference = 0;
9e696d2e
JG
2627 h->delayed_pic[i] = NULL;
2628 }
2629
2630 flush_change(h);
2c541554 2631
555000c7
AK
2632 if (h->DPB)
2633 for (i = 0; i < MAX_PICTURE_COUNT; i++)
2634 unref_picture(h, &h->DPB[i]);
2c541554 2635 h->cur_pic_ptr = NULL;
759001c5 2636 unref_picture(h, &h->cur_pic);
2c541554
AK
2637
2638 h->mb_x = h->mb_y = 0;
2639
2640 h->parse_context.state = -1;
2641 h->parse_context.frame_start_found = 0;
2642 h->parse_context.overread = 0;
2643 h->parse_context.overread_index = 0;
2644 h->parse_context.index = 0;
2645 h->parse_context.last_index = 0;
7c33ad19
LM
2646}
2647
e5d40372
DB
2648static int init_poc(H264Context *h)
2649{
e5d40372 2650 const int max_frame_num = 1 << h->sps.log2_max_frame_num;
0da71265 2651 int field_poc[2];
2c541554 2652 Picture *cur = h->cur_pic_ptr;
0da71265 2653
e5d40372
DB
2654 h->frame_num_offset = h->prev_frame_num_offset;
2655 if (h->frame_num < h->prev_frame_num)
b78a6baa 2656 h->frame_num_offset += max_frame_num;
0da71265 2657
e5d40372
DB
2658 if (h->sps.poc_type == 0) {
2659 const int max_poc_lsb = 1 << h->sps.log2_max_poc_lsb;
0da71265 2660
e5d40372 2661 if (h->poc_lsb < h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb >= max_poc_lsb / 2)
0da71265 2662 h->poc_msb = h->prev_poc_msb + max_poc_lsb;
e5d40372 2663 else if (h->poc_lsb > h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb < -max_poc_lsb / 2)
0da71265
MN
2664 h->poc_msb = h->prev_poc_msb - max_poc_lsb;
2665 else
2666 h->poc_msb = h->prev_poc_msb;
115329f1 2667 field_poc[0] =
0da71265 2668 field_poc[1] = h->poc_msb + h->poc_lsb;
2c541554 2669 if (h->picture_structure == PICT_FRAME)
0da71265 2670 field_poc[1] += h->delta_poc_bottom;
e5d40372 2671 } else if (h->sps.poc_type == 1) {
0da71265
MN
2672 int abs_frame_num, expected_delta_per_poc_cycle, expectedpoc;
2673 int i;
2674
e5d40372 2675 if (h->sps.poc_cycle_length != 0)
0da71265
MN
2676 abs_frame_num = h->frame_num_offset + h->frame_num;
2677 else
2678 abs_frame_num = 0;
2679
e5d40372 2680 if (h->nal_ref_idc == 0 && abs_frame_num > 0)
0da71265 2681 abs_frame_num--;
115329f1 2682
0da71265 2683 expected_delta_per_poc_cycle = 0;
e5d40372
DB
2684 for (i = 0; i < h->sps.poc_cycle_length; i++)
2685 // FIXME integrate during sps parse
2686 expected_delta_per_poc_cycle += h->sps.offset_for_ref_frame[i];
0da71265 2687
e5d40372 2688 if (abs_frame_num > 0) {
0da71265
MN
2689 int poc_cycle_cnt = (abs_frame_num - 1) / h->sps.poc_cycle_length;
2690 int frame_num_in_poc_cycle = (abs_frame_num - 1) % h->sps.poc_cycle_length;
2691
2692 expectedpoc = poc_cycle_cnt * expected_delta_per_poc_cycle;
e5d40372
DB
2693 for (i = 0; i <= frame_num_in_poc_cycle; i++)
2694 expectedpoc = expectedpoc + h->sps.offset_for_ref_frame[i];
0da71265
MN
2695 } else
2696 expectedpoc = 0;
2697
e5d40372 2698 if (h->nal_ref_idc == 0)
0da71265 2699 expectedpoc = expectedpoc + h->sps.offset_for_non_ref_pic;
115329f1 2700
0da71265
MN
2701 field_poc[0] = expectedpoc + h->delta_poc[0];
2702 field_poc[1] = field_poc[0] + h->sps.offset_for_top_to_bottom_field;
2703
2c541554 2704 if (h->picture_structure == PICT_FRAME)
0da71265 2705 field_poc[1] += h->delta_poc[1];
e5d40372
DB
2706 } else {
2707 int poc = 2 * (h->frame_num_offset + h->frame_num);
5710b371 2708
e5d40372 2709 if (!h->nal_ref_idc)
b78a6baa 2710 poc--;
5710b371 2711
e5d40372
DB
2712 field_poc[0] = poc;
2713 field_poc[1] = poc;
0da71265 2714 }
115329f1 2715
2c541554
AK
2716 if (h->picture_structure != PICT_BOTTOM_FIELD)
2717 h->cur_pic_ptr->field_poc[0] = field_poc[0];
2718 if (h->picture_structure != PICT_TOP_FIELD)
2719 h->cur_pic_ptr->field_poc[1] = field_poc[1];
e5d40372 2720 cur->poc = FFMIN(cur->field_poc[0], cur->field_poc[1]);
0da71265
MN
2721
2722 return 0;
2723}
2724
b41c1db3
2725/**
2726 * initialize scan tables
2727 */
e5d40372
DB
2728static void init_scan_tables(H264Context *h)
2729{
b41c1db3 2730 int i;
e5d40372
DB
2731 for (i = 0; i < 16; i++) {
2732#define T(x) (x >> 2) | ((x << 2) & 0xF)
ca32f7f2 2733 h->zigzag_scan[i] = T(zigzag_scan[i]);
e5d40372 2734 h->field_scan[i] = T(field_scan[i]);
b41c1db3 2735#undef T
b41c1db3 2736 }
e5d40372
DB
2737 for (i = 0; i < 64; i++) {
2738#define T(x) (x >> 3) | ((x & 7) << 3)
ca32f7f2
JGG
2739 h->zigzag_scan8x8[i] = T(ff_zigzag_direct[i]);
2740 h->zigzag_scan8x8_cavlc[i] = T(zigzag_scan8x8_cavlc[i]);
2741 h->field_scan8x8[i] = T(field_scan8x8[i]);
2742 h->field_scan8x8_cavlc[i] = T(field_scan8x8_cavlc[i]);
b41c1db3 2743#undef T
b41c1db3 2744 }
e5d40372 2745 if (h->sps.transform_bypass) { // FIXME same ugly
b41c1db3 2746 h->zigzag_scan_q0 = zigzag_scan;
45beb850 2747 h->zigzag_scan8x8_q0 = ff_zigzag_direct;
b41c1db3
2748 h->zigzag_scan8x8_cavlc_q0 = zigzag_scan8x8_cavlc;
2749 h->field_scan_q0 = field_scan;
2750 h->field_scan8x8_q0 = field_scan8x8;
2751 h->field_scan8x8_cavlc_q0 = field_scan8x8_cavlc;
e5d40372 2752 } else {
b41c1db3
2753 h->zigzag_scan_q0 = h->zigzag_scan;
2754 h->zigzag_scan8x8_q0 = h->zigzag_scan8x8;
2755 h->zigzag_scan8x8_cavlc_q0 = h->zigzag_scan8x8_cavlc;
2756 h->field_scan_q0 = h->field_scan;
2757 h->field_scan8x8_q0 = h->field_scan8x8;
2758 h->field_scan8x8_cavlc_q0 = h->field_scan8x8_cavlc;
2759 }
2760}
afebe2f7 2761
e5d40372
DB
2762static int field_end(H264Context *h, int in_setup)
2763{
2c541554 2764 AVCodecContext *const avctx = h->avctx;
12fe7594 2765 int err = 0;
2c541554 2766 h->mb_y = 0;
256299d3 2767
2c541554 2768 if (!in_setup && !h->droppable)
759001c5 2769 ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
2c541554 2770 h->picture_structure == PICT_BOTTOM_FIELD);
256299d3 2771
e5d40372 2772 if (CONFIG_H264_VDPAU_DECODER &&
2c541554
AK
2773 h->avctx->codec->capabilities & CODEC_CAP_HWACCEL_VDPAU)
2774 ff_vdpau_h264_set_reference_frames(h);
256299d3 2775
e5d40372 2776 if (in_setup || !(avctx->active_thread_type & FF_THREAD_FRAME)) {
2c541554 2777 if (!h->droppable) {
12fe7594 2778 err = ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index);
e5d40372
DB
2779 h->prev_poc_msb = h->poc_msb;
2780 h->prev_poc_lsb = h->poc_lsb;
6a9c8594 2781 }
e5d40372
DB
2782 h->prev_frame_num_offset = h->frame_num_offset;
2783 h->prev_frame_num = h->frame_num;
2784 h->outputed_poc = h->next_outputed_poc;
256299d3 2785 }
256299d3
MN
2786
2787 if (avctx->hwaccel) {
2788 if (avctx->hwaccel->end_frame(avctx) < 0)
e5d40372
DB
2789 av_log(avctx, AV_LOG_ERROR,
2790 "hardware accelerator failed to decode picture\n");
256299d3
MN
2791 }
2792
e5d40372 2793 if (CONFIG_H264_VDPAU_DECODER &&
2c541554
AK
2794 h->avctx->codec->capabilities & CODEC_CAP_HWACCEL_VDPAU)
2795 ff_vdpau_h264_picture_complete(h);
256299d3
MN
2796
2797 /*
2798 * FIXME: Error handling code does not seem to support interlaced
2799 * when slices span multiple rows
2800 * The ff_er_add_slice calls don't work right for bottom
2801 * fields; they cause massive erroneous error concealing
2802 * Error marking covers both fields (top and bottom).
2803 * This causes a mismatched s->error_count
2804 * and a bad error table. Further, the error count goes to
2805 * INT_MAX when called for bottom field, because mb_y is
2806 * past end by one (callers fault) and resync_mb_y != 0
2807 * causes problems for the first MB line, too.
2808 */
0b499c9b 2809 if (CONFIG_ERROR_RESILIENCE && !FIELD_PICTURE(h)) {
2c541554
AK
2810 h->er.cur_pic = h->cur_pic_ptr;
2811 h->er.last_pic = h->ref_count[0] ? &h->ref_list[0][0] : NULL;
2812 h->er.next_pic = h->ref_count[1] ? &h->ref_list[1][0] : NULL;
2813 ff_er_frame_end(&h->er);
2814 }
2c541554 2815 emms_c();
d225a1e2 2816
e5d40372 2817 h->current_slice = 0;
12fe7594
DB
2818
2819 return err;
256299d3
MN
2820}
2821
afebe2f7 2822/**
49bd8e4b 2823 * Replicate H264 "master" context to thread contexts.
afebe2f7 2824 */
f1d8763a 2825static int clone_slice(H264Context *dst, H264Context *src)
afebe2f7 2826{
e5d40372 2827 memcpy(dst->block_offset, src->block_offset, sizeof(dst->block_offset));
2c541554
AK
2828 dst->cur_pic_ptr = src->cur_pic_ptr;
2829 dst->cur_pic = src->cur_pic;
2830 dst->linesize = src->linesize;
2831 dst->uvlinesize = src->uvlinesize;
2832 dst->first_field = src->first_field;
f1d8763a 2833
e5d40372
DB
2834 dst->prev_poc_msb = src->prev_poc_msb;
2835 dst->prev_poc_lsb = src->prev_poc_lsb;
2836 dst->prev_frame_num_offset = src->prev_frame_num_offset;
2837 dst->prev_frame_num = src->prev_frame_num;
2838 dst->short_ref_count = src->short_ref_count;
afebe2f7
2839
2840 memcpy(dst->short_ref, src->short_ref, sizeof(dst->short_ref));
2841 memcpy(dst->long_ref, src->long_ref, sizeof(dst->long_ref));
2842 memcpy(dst->default_ref_list, src->default_ref_list, sizeof(dst->default_ref_list));
50c21814
2843
2844 memcpy(dst->dequant4_coeff, src->dequant4_coeff, sizeof(src->dequant4_coeff));
2845 memcpy(dst->dequant8_coeff, src->dequant8_coeff, sizeof(src->dequant8_coeff));
f1d8763a
JG
2846
2847 return 0;
afebe2f7
2848}
2849
0da71265 2850/**
58c42af7 2851 * Compute profile from profile_idc and constraint_set?_flags.
fe9a3fbe
JG
2852 *
2853 * @param sps SPS
2854 *
2855 * @return profile as defined by FF_PROFILE_H264_*
2856 */
2857int ff_h264_get_profile(SPS *sps)
2858{
2859 int profile = sps->profile_idc;
2860
e5d40372 2861 switch (sps->profile_idc) {
fe9a3fbe
JG
2862 case FF_PROFILE_H264_BASELINE:
2863 // constraint_set1_flag set to 1
e5d40372 2864 profile |= (sps->constraint_set_flags & 1 << 1) ? FF_PROFILE_H264_CONSTRAINED : 0;
fe9a3fbe
JG
2865 break;
2866 case FF_PROFILE_H264_HIGH_10:
2867 case FF_PROFILE_H264_HIGH_422:
2868 case FF_PROFILE_H264_HIGH_444_PREDICTIVE:
2869 // constraint_set3_flag set to 1
e5d40372 2870 profile |= (sps->constraint_set_flags & 1 << 3) ? FF_PROFILE_H264_INTRA : 0;
fe9a3fbe
JG
2871 break;
2872 }
2873
2874 return profile;
2875}
2876
072be3e8
JG
2877static int h264_set_parameter_from_sps(H264Context *h)
2878{
2c541554 2879 if (h->flags & CODEC_FLAG_LOW_DELAY ||
072be3e8
JG
2880 (h->sps.bitstream_restriction_flag &&
2881 !h->sps.num_reorder_frames)) {
2c541554
AK
2882 if (h->avctx->has_b_frames > 1 || h->delayed_pic[0])
2883 av_log(h->avctx, AV_LOG_WARNING, "Delayed frames seen. "
072be3e8
JG
2884 "Reenabling low delay requires a codec flush.\n");
2885 else
2c541554 2886 h->low_delay = 1;
072be3e8
JG
2887 }
2888
2c541554
AK
2889 if (h->avctx->has_b_frames < 2)
2890 h->avctx->has_b_frames = !h->low_delay;
072be3e8 2891
4987faee 2892 if (h->sps.bit_depth_luma != h->sps.bit_depth_chroma) {
12e25ed2
DB
2893 avpriv_request_sample(h->avctx,
2894 "Different chroma and luma bit depth");
4987faee
LB
2895 return AVERROR_PATCHWELCOME;
2896 }
2897
2c541554 2898 if (h->avctx->bits_per_raw_sample != h->sps.bit_depth_luma ||
072be3e8 2899 h->cur_chroma_format_idc != h->sps.chroma_format_idc) {
2c541554
AK
2900 if (h->avctx->codec &&
2901 h->avctx->codec->capabilities & CODEC_CAP_HWACCEL_VDPAU &&
072be3e8 2902 (h->sps.bit_depth_luma != 8 || h->sps.chroma_format_idc > 1)) {
2c541554 2903 av_log(h->avctx, AV_LOG_ERROR,
072be3e8
JG
2904 "VDPAU decoding does not support video colorspace.\n");
2905 return AVERROR_INVALIDDATA;
2906 }
2907 if (h->sps.bit_depth_luma >= 8 && h->sps.bit_depth_luma <= 10) {
2c541554 2908 h->avctx->bits_per_raw_sample = h->sps.bit_depth_luma;
072be3e8
JG
2909 h->cur_chroma_format_idc = h->sps.chroma_format_idc;
2910 h->pixel_shift = h->sps.bit_depth_luma > 8;
2911
2912 ff_h264dsp_init(&h->h264dsp, h->sps.bit_depth_luma,
2913 h->sps.chroma_format_idc);
79dad2a9 2914 ff_h264chroma_init(&h->h264chroma, h->sps.bit_depth_chroma);
e9d81735 2915 ff_h264qpel_init(&h->h264qpel, h->sps.bit_depth_luma);
2c541554 2916 ff_h264_pred_init(&h->hpc, h->avctx->codec_id, h->sps.bit_depth_luma,
072be3e8 2917 h->sps.chroma_format_idc);
2c541554 2918 h->dsp.dct_bits = h->sps.bit_depth_luma > 8 ? 32 : 16;
85deb51a
RB
2919 if (CONFIG_ERROR_RESILIENCE)
2920 ff_dsputil_init(&h->dsp, h->avctx);
2c541554 2921 ff_videodsp_init(&h->vdsp, h->sps.bit_depth_luma);
072be3e8 2922 } else {
2c541554 2923 av_log(h->avctx, AV_LOG_ERROR, "Unsupported bit depth: %d\n",
072be3e8
JG
2924 h->sps.bit_depth_luma);
2925 return AVERROR_INVALIDDATA;
2926 }
2927 }
2928 return 0;
2929}
2930
542b83fc 2931static enum AVPixelFormat get_pixel_format(H264Context *h)
9e696d2e 2932{
9e696d2e
JG
2933 switch (h->sps.bit_depth_luma) {
2934 case 9:
23e85be5 2935 if (CHROMA444(h)) {
2c541554 2936 if (h->avctx->colorspace == AVCOL_SPC_RGB) {
9e696d2e
JG
2937 return AV_PIX_FMT_GBRP9;
2938 } else
2939 return AV_PIX_FMT_YUV444P9;
e962bd08 2940 } else if (CHROMA422(h))
9e696d2e
JG
2941 return AV_PIX_FMT_YUV422P9;
2942 else
2943 return AV_PIX_FMT_YUV420P9;
2944 break;
2945 case 10:
23e85be5 2946 if (CHROMA444(h)) {
2c541554 2947 if (h->avctx->colorspace == AVCOL_SPC_RGB) {
9e696d2e
JG
2948 return AV_PIX_FMT_GBRP10;
2949 } else
2950 return AV_PIX_FMT_YUV444P10;
e962bd08 2951 } else if (CHROMA422(h))
9e696d2e
JG
2952 return AV_PIX_FMT_YUV422P10;
2953 else
2954 return AV_PIX_FMT_YUV420P10;
2955 break;
2956 case 8:
23e85be5 2957 if (CHROMA444(h)) {
2c541554 2958 if (h->avctx->colorspace == AVCOL_SPC_RGB) {
9e696d2e
JG
2959 return AV_PIX_FMT_GBRP;
2960 } else
2c541554 2961 return h->avctx->color_range == AVCOL_RANGE_JPEG ? AV_PIX_FMT_YUVJ444P
9e696d2e 2962 : AV_PIX_FMT_YUV444P;
e962bd08 2963 } else if (CHROMA422(h)) {
2c541554 2964 return h->avctx->color_range == AVCOL_RANGE_JPEG ? AV_PIX_FMT_YUVJ422P
9e696d2e
JG
2965 : AV_PIX_FMT_YUV422P;
2966 } else {
2c541554
AK
2967 return h->avctx->get_format(h->avctx, h->avctx->codec->pix_fmts ?
2968 h->avctx->codec->pix_fmts :
2969 h->avctx->color_range == AVCOL_RANGE_JPEG ?
d65522e8 2970 h264_hwaccel_pixfmt_list_jpeg_420 :
8d061989 2971 h264_hwaccel_pixfmt_list_420);
9e696d2e
JG
2972 }
2973 break;
2974 default:
2c541554 2975 av_log(h->avctx, AV_LOG_ERROR,
9e696d2e
JG
2976 "Unsupported bit depth: %d\n", h->sps.bit_depth_luma);
2977 return AVERROR_INVALIDDATA;
2978 }
2979}
2980
2981static int h264_slice_header_init(H264Context *h, int reinit)
2982{
2c541554
AK
2983 int nb_slices = (HAVE_THREADS &&
2984 h->avctx->active_thread_type & FF_THREAD_SLICE) ?
2985 h->avctx->thread_count : 1;
2986 int i;
9e696d2e 2987
2c541554
AK
2988 avcodec_set_dimensions(h->avctx, h->width, h->height);
2989 h->avctx->sample_aspect_ratio = h->sps.sar;
2990 av_assert0(h->avctx->sample_aspect_ratio.den);
2991 av_pix_fmt_get_chroma_sub_sample(h->avctx->pix_fmt,
2992 &h->chroma_x_shift, &h->chroma_y_shift);
9e696d2e
JG
2993
2994 if (h->sps.timing_info_present_flag) {
2995 int64_t den = h->sps.time_scale;
2996 if (h->x264_build < 44U)
2997 den *= 2;
2c541554 2998 av_reduce(&h->avctx->time_base.num, &h->avctx->time_base.den,
9e696d2e
JG
2999 h->sps.num_units_in_tick, den, 1 << 30);
3000 }
3001
2c541554 3002 h->avctx->hwaccel = ff_find_hwaccel(h->avctx->codec->id, h->avctx->pix_fmt);
9e696d2e 3003
2c541554 3004 if (reinit)
9e696d2e 3005 free_tables(h, 0);
2c541554 3006 h->first_field = 0;
9e696d2e
JG
3007 h->prev_interlaced_frame = 1;
3008
3009 init_scan_tables(h);
3010 if (ff_h264_alloc_tables(h) < 0) {
2c541554 3011 av_log(h->avctx, AV_LOG_ERROR,
9e696d2e
JG
3012 "Could not allocate memory for h264\n");
3013 return AVERROR(ENOMEM);
3014 }
3015
2c541554
AK
3016 if (nb_slices > MAX_THREADS || (nb_slices > h->mb_height && h->mb_height)) {
3017 int max_slices;
3018 if (h->mb_height)
3019 max_slices = FFMIN(MAX_THREADS, h->mb_height);
3020 else
3021 max_slices = MAX_THREADS;
3022 av_log(h->avctx, AV_LOG_WARNING, "too many threads/slices (%d),"
3023 " reducing to %d\n", nb_slices, max_slices);
3024 nb_slices = max_slices;
3025 }
3026 h->slice_context_count = nb_slices;
3027
3028 if (!HAVE_THREADS || !(h->avctx->active_thread_type & FF_THREAD_SLICE)) {
9e696d2e 3029 if (context_init(h) < 0) {
2c541554 3030 av_log(h->avctx, AV_LOG_ERROR, "context_init() failed.\n");
9e696d2e
JG
3031 return -1;
3032 }
3033 } else {
2c541554 3034 for (i = 1; i < h->slice_context_count; i++) {
9e696d2e 3035 H264Context *c;
2c541554
AK
3036 c = h->thread_context[i] = av_mallocz(sizeof(H264Context));
3037 c->avctx = h->avctx;
3038 c->dsp = h->dsp;
3039 c->vdsp = h->vdsp;
9e696d2e 3040 c->h264dsp = h->h264dsp;
6bdb841b 3041 c->h264qpel = h->h264qpel;
4c51fe48 3042 c->h264chroma = h->h264chroma;
9e696d2e
JG
3043 c->sps = h->sps;
3044 c->pps = h->pps;
3045 c->pixel_shift = h->pixel_shift;
2c541554
AK
3046 c->width = h->width;
3047 c->height = h->height;
3048 c->linesize = h->linesize;
3049 c->uvlinesize = h->uvlinesize;
3050 c->chroma_x_shift = h->chroma_x_shift;
3051 c->chroma_y_shift = h->chroma_y_shift;
3052 c->qscale = h->qscale;
3053 c->droppable = h->droppable;
3054 c->data_partitioning = h->data_partitioning;
3055 c->low_delay = h->low_delay;
3056 c->mb_width = h->mb_width;
3057 c->mb_height = h->mb_height;
3058 c->mb_stride = h->mb_stride;
3059 c->mb_num = h->mb_num;
3060 c->flags = h->flags;
3061 c->workaround_bugs = h->workaround_bugs;
3062 c->pict_type = h->pict_type;
3063
9e696d2e
JG
3064 init_scan_tables(c);
3065 clone_tables(c, h, i);
2c541554 3066 c->context_initialized = 1;
9e696d2e
JG
3067 }
3068
2c541554 3069 for (i = 0; i < h->slice_context_count; i++)
9e696d2e 3070 if (context_init(h->thread_context[i]) < 0) {
2c541554 3071 av_log(h->avctx, AV_LOG_ERROR, "context_init() failed.\n");
9e696d2e
JG
3072 return -1;
3073 }
3074 }
3075
2c541554
AK
3076 h->context_initialized = 1;
3077
9e696d2e
JG
3078 return 0;
3079}
3080
fe9a3fbe 3081/**
58c42af7 3082 * Decode a slice header.
efd29844 3083 * This will also call ff_MPV_common_init() and frame_start() as needed.
afebe2f7
3084 *
3085 * @param h h264context
e5d40372
DB
3086 * @param h0 h264 master context (differs from 'h' when doing sliced based
3087 * parallel decoding)
afebe2f7 3088 *
d9526386 3089 * @return 0 if okay, <0 if an error occurred, 1 if decoding must not be multithreaded
0da71265 3090 */
e5d40372
DB
3091static int decode_slice_header(H264Context *h, H264Context *h0)
3092{
88e7a4d1 3093 unsigned int first_mb_in_slice;
ac658be5 3094 unsigned int pps_id;
072be3e8 3095 int num_ref_idx_active_override_flag, max_refs, ret;
41f5c62f 3096 unsigned int slice_type, tmp, i, j;
0bf79634 3097 int default_ref_list_done = 0;
ba0c8981 3098 int last_pic_structure, last_pic_droppable;
9e696d2e 3099 int needs_reinit = 0;
0da71265 3100
2c541554
AK
3101 h->me.qpel_put = h->h264qpel.put_h264_qpel_pixels_tab;
3102 h->me.qpel_avg = h->h264qpel.avg_h264_qpel_pixels_tab;
cf653d08 3103
2c541554 3104 first_mb_in_slice = get_ue_golomb(&h->gb);
0da71265 3105
e5d40372 3106 if (first_mb_in_slice == 0) { // FIXME better field boundary detection
7fa00653 3107 if (h0->current_slice && FIELD_PICTURE(h)) {
6a9c8594 3108 field_end(h, 1);
d225a1e2
MN
3109 }
3110
afebe2f7 3111 h0->current_slice = 0;
2c541554 3112 if (!h0->first_field) {
759001c5
AK
3113 if (h->cur_pic_ptr && !h->droppable) {
3114 ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
2c541554 3115 h->picture_structure == PICT_BOTTOM_FIELD);
1e26a48f 3116 }
2c541554 3117 h->cur_pic_ptr = NULL;
1e26a48f 3118 }
66a4b2c1
MN
3119 }
3120
2c541554 3121 slice_type = get_ue_golomb_31(&h->gb);
e5d40372 3122 if (slice_type > 9) {
2c541554 3123 av_log(h->avctx, AV_LOG_ERROR,
e5d40372 3124 "slice type too large (%d) at %d %d\n",
2c541554 3125 h->slice_type, h->mb_x, h->mb_y);
5175b937 3126 return -1;
0da71265 3127 }
e5d40372 3128 if (slice_type > 4) {
0bf79634 3129 slice_type -= 5;
e5d40372
DB
3130 h->slice_type_fixed = 1;
3131 } else
3132 h->slice_type_fixed = 0;
115329f1 3133
e5d40372
DB
3134 slice_type = golomb_to_pict_type[slice_type];
3135 if (slice_type == AV_PICTURE_TYPE_I ||
3136 (h0->current_slice != 0 && slice_type == h0->last_slice_type)) {
0bf79634
LLL
3137 default_ref_list_done = 1;
3138 }
e5d40372
DB
3139 h->slice_type = slice_type;
3140 h->slice_type_nos = slice_type & 3;
0bf79634 3141
e5d40372 3142 // to make a few old functions happy, it's wrong though
2c541554 3143 h->pict_type = h->slice_type;
115329f1