4 * Copyright (C) 2012 - 2013 Guillaume Martres
5 * Copyright (C) 2012 - 2013 Mickael Raulet
6 * Copyright (C) 2012 - 2013 Gildas Cocherel
7 * Copyright (C) 2012 - 2013 Wassim Hamidouche
9 * This file is part of FFmpeg.
11 * FFmpeg is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public
13 * License as published by the Free Software Foundation; either
14 * version 2.1 of the License, or (at your option) any later version.
16 * FFmpeg is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * Lesser General Public License for more details.
21 * You should have received a copy of the GNU Lesser General Public
22 * License along with FFmpeg; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
26 #include "libavutil/atomic.h"
27 #include "libavutil/attributes.h"
28 #include "libavutil/common.h"
29 #include "libavutil/internal.h"
30 #include "libavutil/md5.h"
31 #include "libavutil/opt.h"
32 #include "libavutil/pixdesc.h"
33 #include "libavutil/stereo3d.h"
36 #include "bytestream.h"
37 #include "cabac_functions.h"
41 const uint8_t ff_hevc_pel_weight[65] = { [2] = 0, [4] = 1, [6] = 2, [8] = 3, [12] = 4, [16] = 5, [24] = 6, [32] = 7, [48] = 8, [64] = 9 };
44 * NOTE: Each function hls_foo correspond to the function foo in the
45 * specification (HLS stands for High Level Syntax).
52 /* free everything allocated by pic_arrays_init() */
53 static void pic_arrays_free(HEVCContext *s)
56 av_freep(&s->deblock);
57 av_freep(&s->split_cu_flag);
59 av_freep(&s->skip_flag);
60 av_freep(&s->tab_ct_depth);
62 av_freep(&s->tab_ipm);
63 av_freep(&s->cbf_luma);
66 av_freep(&s->qp_y_tab);
67 av_freep(&s->tab_slice_address);
68 av_freep(&s->filter_slice_edges);
70 av_freep(&s->horizontal_bs);
71 av_freep(&s->vertical_bs);
73 av_freep(&s->sh.entry_point_offset);
74 av_freep(&s->sh.size);
75 av_freep(&s->sh.offset);
77 av_buffer_pool_uninit(&s->tab_mvf_pool);
78 av_buffer_pool_uninit(&s->rpl_tab_pool);
81 /* allocate arrays that depend on frame dimensions */
82 static int pic_arrays_init(HEVCContext *s, const HEVCSPS *sps)
84 int log2_min_cb_size = sps->log2_min_cb_size;
85 int width = sps->width;
86 int height = sps->height;
87 int pic_size = width * height;
88 int pic_size_in_ctb = ((width >> log2_min_cb_size) + 1) *
89 ((height >> log2_min_cb_size) + 1);
90 int ctb_count = sps->ctb_width * sps->ctb_height;
91 int min_pu_size = sps->min_pu_width * sps->min_pu_height;
93 s->bs_width = width >> 3;
94 s->bs_height = height >> 3;
96 s->sao = av_mallocz_array(ctb_count, sizeof(*s->sao));
97 s->deblock = av_mallocz_array(ctb_count, sizeof(*s->deblock));
98 s->split_cu_flag = av_malloc(pic_size);
99 if (!s->sao || !s->deblock || !s->split_cu_flag)
102 s->skip_flag = av_malloc(pic_size_in_ctb);
103 s->tab_ct_depth = av_malloc_array(sps->min_cb_height, sps->min_cb_width);
104 if (!s->skip_flag || !s->tab_ct_depth)
107 s->cbf_luma = av_malloc_array(sps->min_tb_width, sps->min_tb_height);
108 s->tab_ipm = av_mallocz(min_pu_size);
109 s->is_pcm = av_malloc(min_pu_size);
110 if (!s->tab_ipm || !s->cbf_luma || !s->is_pcm)
113 s->filter_slice_edges = av_malloc(ctb_count);
114 s->tab_slice_address = av_malloc_array(pic_size_in_ctb,
115 sizeof(*s->tab_slice_address));
116 s->qp_y_tab = av_malloc_array(pic_size_in_ctb,
117 sizeof(*s->qp_y_tab));
118 if (!s->qp_y_tab || !s->filter_slice_edges || !s->tab_slice_address)
121 s->horizontal_bs = av_mallocz_array(2 * s->bs_width, (s->bs_height + 1));
122 s->vertical_bs = av_mallocz_array(2 * s->bs_width, (s->bs_height + 1));
123 if (!s->horizontal_bs || !s->vertical_bs)
126 s->tab_mvf_pool = av_buffer_pool_init(min_pu_size * sizeof(MvField),
128 s->rpl_tab_pool = av_buffer_pool_init(ctb_count * sizeof(RefPicListTab),
130 if (!s->tab_mvf_pool || !s->rpl_tab_pool)
137 return AVERROR(ENOMEM);
140 static void pred_weight_table(HEVCContext *s, GetBitContext *gb)
144 uint8_t luma_weight_l0_flag[16];
145 uint8_t chroma_weight_l0_flag[16];
146 uint8_t luma_weight_l1_flag[16];
147 uint8_t chroma_weight_l1_flag[16];
149 s->sh.luma_log2_weight_denom = get_ue_golomb_long(gb);
150 if (s->sps->chroma_format_idc != 0) {
151 int delta = get_se_golomb(gb);
152 s->sh.chroma_log2_weight_denom = av_clip(s->sh.luma_log2_weight_denom + delta, 0, 7);
155 for (i = 0; i < s->sh.nb_refs[L0]; i++) {
156 luma_weight_l0_flag[i] = get_bits1(gb);
157 if (!luma_weight_l0_flag[i]) {
158 s->sh.luma_weight_l0[i] = 1 << s->sh.luma_log2_weight_denom;
159 s->sh.luma_offset_l0[i] = 0;
162 if (s->sps->chroma_format_idc != 0) { // FIXME: invert "if" and "for"
163 for (i = 0; i < s->sh.nb_refs[L0]; i++)
164 chroma_weight_l0_flag[i] = get_bits1(gb);
166 for (i = 0; i < s->sh.nb_refs[L0]; i++)
167 chroma_weight_l0_flag[i] = 0;
169 for (i = 0; i < s->sh.nb_refs[L0]; i++) {
170 if (luma_weight_l0_flag[i]) {
171 int delta_luma_weight_l0 = get_se_golomb(gb);
172 s->sh.luma_weight_l0[i] = (1 << s->sh.luma_log2_weight_denom) + delta_luma_weight_l0;
173 s->sh.luma_offset_l0[i] = get_se_golomb(gb);
175 if (chroma_weight_l0_flag[i]) {
176 for (j = 0; j < 2; j++) {
177 int delta_chroma_weight_l0 = get_se_golomb(gb);
178 int delta_chroma_offset_l0 = get_se_golomb(gb);
179 s->sh.chroma_weight_l0[i][j] = (1 << s->sh.chroma_log2_weight_denom) + delta_chroma_weight_l0;
180 s->sh.chroma_offset_l0[i][j] = av_clip((delta_chroma_offset_l0 - ((128 * s->sh.chroma_weight_l0[i][j])
181 >> s->sh.chroma_log2_weight_denom) + 128), -128, 127);
184 s->sh.chroma_weight_l0[i][0] = 1 << s->sh.chroma_log2_weight_denom;
185 s->sh.chroma_offset_l0[i][0] = 0;
186 s->sh.chroma_weight_l0[i][1] = 1 << s->sh.chroma_log2_weight_denom;
187 s->sh.chroma_offset_l0[i][1] = 0;
190 if (s->sh.slice_type == B_SLICE) {
191 for (i = 0; i < s->sh.nb_refs[L1]; i++) {
192 luma_weight_l1_flag[i] = get_bits1(gb);
193 if (!luma_weight_l1_flag[i]) {
194 s->sh.luma_weight_l1[i] = 1 << s->sh.luma_log2_weight_denom;
195 s->sh.luma_offset_l1[i] = 0;
198 if (s->sps->chroma_format_idc != 0) {
199 for (i = 0; i < s->sh.nb_refs[L1]; i++)
200 chroma_weight_l1_flag[i] = get_bits1(gb);
202 for (i = 0; i < s->sh.nb_refs[L1]; i++)
203 chroma_weight_l1_flag[i] = 0;
205 for (i = 0; i < s->sh.nb_refs[L1]; i++) {
206 if (luma_weight_l1_flag[i]) {
207 int delta_luma_weight_l1 = get_se_golomb(gb);
208 s->sh.luma_weight_l1[i] = (1 << s->sh.luma_log2_weight_denom) + delta_luma_weight_l1;
209 s->sh.luma_offset_l1[i] = get_se_golomb(gb);
211 if (chroma_weight_l1_flag[i]) {
212 for (j = 0; j < 2; j++) {
213 int delta_chroma_weight_l1 = get_se_golomb(gb);
214 int delta_chroma_offset_l1 = get_se_golomb(gb);
215 s->sh.chroma_weight_l1[i][j] = (1 << s->sh.chroma_log2_weight_denom) + delta_chroma_weight_l1;
216 s->sh.chroma_offset_l1[i][j] = av_clip((delta_chroma_offset_l1 - ((128 * s->sh.chroma_weight_l1[i][j])
217 >> s->sh.chroma_log2_weight_denom) + 128), -128, 127);
220 s->sh.chroma_weight_l1[i][0] = 1 << s->sh.chroma_log2_weight_denom;
221 s->sh.chroma_offset_l1[i][0] = 0;
222 s->sh.chroma_weight_l1[i][1] = 1 << s->sh.chroma_log2_weight_denom;
223 s->sh.chroma_offset_l1[i][1] = 0;
229 static int decode_lt_rps(HEVCContext *s, LongTermRPS *rps, GetBitContext *gb)
231 const HEVCSPS *sps = s->sps;
232 int max_poc_lsb = 1 << sps->log2_max_poc_lsb;
233 int prev_delta_msb = 0;
234 unsigned int nb_sps = 0, nb_sh;
238 if (!sps->long_term_ref_pics_present_flag)
241 if (sps->num_long_term_ref_pics_sps > 0)
242 nb_sps = get_ue_golomb_long(gb);
243 nb_sh = get_ue_golomb_long(gb);
245 if (nb_sh + nb_sps > FF_ARRAY_ELEMS(rps->poc))
246 return AVERROR_INVALIDDATA;
248 rps->nb_refs = nb_sh + nb_sps;
250 for (i = 0; i < rps->nb_refs; i++) {
251 uint8_t delta_poc_msb_present;
254 uint8_t lt_idx_sps = 0;
256 if (sps->num_long_term_ref_pics_sps > 1)
257 lt_idx_sps = get_bits(gb, av_ceil_log2(sps->num_long_term_ref_pics_sps));
259 rps->poc[i] = sps->lt_ref_pic_poc_lsb_sps[lt_idx_sps];
260 rps->used[i] = sps->used_by_curr_pic_lt_sps_flag[lt_idx_sps];
262 rps->poc[i] = get_bits(gb, sps->log2_max_poc_lsb);
263 rps->used[i] = get_bits1(gb);
266 delta_poc_msb_present = get_bits1(gb);
267 if (delta_poc_msb_present) {
268 int delta = get_ue_golomb_long(gb);
270 if (i && i != nb_sps)
271 delta += prev_delta_msb;
273 rps->poc[i] += s->poc - delta * max_poc_lsb - s->sh.pic_order_cnt_lsb;
274 prev_delta_msb = delta;
281 static int set_sps(HEVCContext *s, const HEVCSPS *sps)
284 unsigned int num = 0, den = 0;
287 ret = pic_arrays_init(s, sps);
291 s->avctx->coded_width = sps->width;
292 s->avctx->coded_height = sps->height;
293 s->avctx->width = sps->output_width;
294 s->avctx->height = sps->output_height;
295 s->avctx->pix_fmt = sps->pix_fmt;
296 s->avctx->has_b_frames = sps->temporal_layer[sps->max_sub_layers - 1].num_reorder_pics;
298 ff_set_sar(s->avctx, sps->vui.sar);
300 if (sps->vui.video_signal_type_present_flag)
301 s->avctx->color_range = sps->vui.video_full_range_flag ? AVCOL_RANGE_JPEG
304 s->avctx->color_range = AVCOL_RANGE_MPEG;
306 if (sps->vui.colour_description_present_flag) {
307 s->avctx->color_primaries = sps->vui.colour_primaries;
308 s->avctx->color_trc = sps->vui.transfer_characteristic;
309 s->avctx->colorspace = sps->vui.matrix_coeffs;
311 s->avctx->color_primaries = AVCOL_PRI_UNSPECIFIED;
312 s->avctx->color_trc = AVCOL_TRC_UNSPECIFIED;
313 s->avctx->colorspace = AVCOL_SPC_UNSPECIFIED;
316 ff_hevc_pred_init(&s->hpc, sps->bit_depth);
317 ff_hevc_dsp_init (&s->hevcdsp, sps->bit_depth);
318 ff_videodsp_init (&s->vdsp, sps->bit_depth);
320 if (sps->sao_enabled) {
321 av_frame_unref(s->tmp_frame);
322 ret = ff_get_buffer(s->avctx, s->tmp_frame, AV_GET_BUFFER_FLAG_REF);
325 s->frame = s->tmp_frame;
329 s->vps = (HEVCVPS*) s->vps_list[s->sps->vps_id]->data;
331 if (s->vps->vps_timing_info_present_flag) {
332 num = s->vps->vps_num_units_in_tick;
333 den = s->vps->vps_time_scale;
334 } else if (sps->vui.vui_timing_info_present_flag) {
335 num = sps->vui.vui_num_units_in_tick;
336 den = sps->vui.vui_time_scale;
339 if (num != 0 && den != 0)
340 av_reduce(&s->avctx->time_base.num, &s->avctx->time_base.den,
351 static int is_sps_exist(HEVCContext *s, const HEVCSPS* last_sps)
355 for( i = 0; i < MAX_SPS_COUNT; i++)
357 if (last_sps == (HEVCSPS*)s->sps_list[i]->data)
362 static int hls_slice_header(HEVCContext *s)
364 GetBitContext *gb = &s->HEVClc->gb;
365 SliceHeader *sh = &s->sh;
369 sh->first_slice_in_pic_flag = get_bits1(gb);
370 if ((IS_IDR(s) || IS_BLA(s)) && sh->first_slice_in_pic_flag) {
371 s->seq_decode = (s->seq_decode + 1) & 0xff;
374 ff_hevc_clear_refs(s);
376 sh->no_output_of_prior_pics_flag = 0;
378 sh->no_output_of_prior_pics_flag = get_bits1(gb);
379 if (s->nal_unit_type == NAL_CRA_NUT && s->last_eos == 1)
380 sh->no_output_of_prior_pics_flag = 1;
382 sh->pps_id = get_ue_golomb_long(gb);
383 if (sh->pps_id >= MAX_PPS_COUNT || !s->pps_list[sh->pps_id]) {
384 av_log(s->avctx, AV_LOG_ERROR, "PPS id out of range: %d\n", sh->pps_id);
385 return AVERROR_INVALIDDATA;
387 if (!sh->first_slice_in_pic_flag &&
388 s->pps != (HEVCPPS*)s->pps_list[sh->pps_id]->data) {
389 av_log(s->avctx, AV_LOG_ERROR, "PPS changed between slices.\n");
390 return AVERROR_INVALIDDATA;
392 s->pps = (HEVCPPS*)s->pps_list[sh->pps_id]->data;
394 if (s->sps != (HEVCSPS*)s->sps_list[s->pps->sps_id]->data) {
395 const HEVCSPS* last_sps = s->sps;
396 s->sps = (HEVCSPS*)s->sps_list[s->pps->sps_id]->data;
398 if (is_sps_exist(s, last_sps)) {
399 if (s->sps->width != last_sps->width || s->sps->height != last_sps->height ||
400 s->sps->temporal_layer[s->sps->max_sub_layers - 1].max_dec_pic_buffering != last_sps->temporal_layer[last_sps->max_sub_layers - 1].max_dec_pic_buffering)
401 sh->no_output_of_prior_pics_flag = 0;
403 sh->no_output_of_prior_pics_flag = 0;
405 ff_hevc_clear_refs(s);
406 ret = set_sps(s, s->sps);
410 s->seq_decode = (s->seq_decode + 1) & 0xff;
414 s->avctx->profile = s->sps->ptl.general_ptl.profile_idc;
415 s->avctx->level = s->sps->ptl.general_ptl.level_idc;
417 sh->dependent_slice_segment_flag = 0;
418 if (!sh->first_slice_in_pic_flag) {
419 int slice_address_length;
421 if (s->pps->dependent_slice_segments_enabled_flag)
422 sh->dependent_slice_segment_flag = get_bits1(gb);
424 slice_address_length = av_ceil_log2(s->sps->ctb_width *
426 sh->slice_segment_addr = get_bits(gb, slice_address_length);
427 if (sh->slice_segment_addr >= s->sps->ctb_width * s->sps->ctb_height) {
428 av_log(s->avctx, AV_LOG_ERROR,
429 "Invalid slice segment address: %u.\n",
430 sh->slice_segment_addr);
431 return AVERROR_INVALIDDATA;
434 if (!sh->dependent_slice_segment_flag) {
435 sh->slice_addr = sh->slice_segment_addr;
439 sh->slice_segment_addr = sh->slice_addr = 0;
441 s->slice_initialized = 0;
444 if (!sh->dependent_slice_segment_flag) {
445 s->slice_initialized = 0;
447 for (i = 0; i < s->pps->num_extra_slice_header_bits; i++)
448 skip_bits(gb, 1); // slice_reserved_undetermined_flag[]
450 sh->slice_type = get_ue_golomb_long(gb);
451 if (!(sh->slice_type == I_SLICE ||
452 sh->slice_type == P_SLICE ||
453 sh->slice_type == B_SLICE)) {
454 av_log(s->avctx, AV_LOG_ERROR, "Unknown slice type: %d.\n",
456 return AVERROR_INVALIDDATA;
458 if (IS_IRAP(s) && sh->slice_type != I_SLICE) {
459 av_log(s->avctx, AV_LOG_ERROR, "Inter slices in an IRAP frame.\n");
460 return AVERROR_INVALIDDATA;
463 sh->pic_output_flag = 1;
464 if (s->pps->output_flag_present_flag)
465 sh->pic_output_flag = get_bits1(gb);
467 if (s->sps->separate_colour_plane_flag)
468 sh->colour_plane_id = get_bits(gb, 2);
471 int short_term_ref_pic_set_sps_flag, poc;
473 sh->pic_order_cnt_lsb = get_bits(gb, s->sps->log2_max_poc_lsb);
474 poc = ff_hevc_compute_poc(s, sh->pic_order_cnt_lsb);
475 if (!sh->first_slice_in_pic_flag && poc != s->poc) {
476 av_log(s->avctx, AV_LOG_WARNING,
477 "Ignoring POC change between slices: %d -> %d\n", s->poc, poc);
478 if (s->avctx->err_recognition & AV_EF_EXPLODE)
479 return AVERROR_INVALIDDATA;
484 short_term_ref_pic_set_sps_flag = get_bits1(gb);
485 if (!short_term_ref_pic_set_sps_flag) {
486 ret = ff_hevc_decode_short_term_rps(s, &sh->slice_rps, s->sps, 1);
490 sh->short_term_rps = &sh->slice_rps;
492 int numbits, rps_idx;
494 if (!s->sps->nb_st_rps) {
495 av_log(s->avctx, AV_LOG_ERROR, "No ref lists in the SPS.\n");
496 return AVERROR_INVALIDDATA;
499 numbits = av_ceil_log2(s->sps->nb_st_rps);
500 rps_idx = numbits > 0 ? get_bits(gb, numbits) : 0;
501 sh->short_term_rps = &s->sps->st_rps[rps_idx];
504 ret = decode_lt_rps(s, &sh->long_term_rps, gb);
506 av_log(s->avctx, AV_LOG_WARNING, "Invalid long term RPS.\n");
507 if (s->avctx->err_recognition & AV_EF_EXPLODE)
508 return AVERROR_INVALIDDATA;
511 if (s->sps->sps_temporal_mvp_enabled_flag)
512 sh->slice_temporal_mvp_enabled_flag = get_bits1(gb);
514 sh->slice_temporal_mvp_enabled_flag = 0;
516 s->sh.short_term_rps = NULL;
521 if (s->temporal_id == 0 &&
522 s->nal_unit_type != NAL_TRAIL_N &&
523 s->nal_unit_type != NAL_TSA_N &&
524 s->nal_unit_type != NAL_STSA_N &&
525 s->nal_unit_type != NAL_RADL_N &&
526 s->nal_unit_type != NAL_RADL_R &&
527 s->nal_unit_type != NAL_RASL_N &&
528 s->nal_unit_type != NAL_RASL_R)
531 if (s->sps->sao_enabled) {
532 sh->slice_sample_adaptive_offset_flag[0] = get_bits1(gb);
533 sh->slice_sample_adaptive_offset_flag[1] =
534 sh->slice_sample_adaptive_offset_flag[2] = get_bits1(gb);
536 sh->slice_sample_adaptive_offset_flag[0] = 0;
537 sh->slice_sample_adaptive_offset_flag[1] = 0;
538 sh->slice_sample_adaptive_offset_flag[2] = 0;
541 sh->nb_refs[L0] = sh->nb_refs[L1] = 0;
542 if (sh->slice_type == P_SLICE || sh->slice_type == B_SLICE) {
545 sh->nb_refs[L0] = s->pps->num_ref_idx_l0_default_active;
546 if (sh->slice_type == B_SLICE)
547 sh->nb_refs[L1] = s->pps->num_ref_idx_l1_default_active;
549 if (get_bits1(gb)) { // num_ref_idx_active_override_flag
550 sh->nb_refs[L0] = get_ue_golomb_long(gb) + 1;
551 if (sh->slice_type == B_SLICE)
552 sh->nb_refs[L1] = get_ue_golomb_long(gb) + 1;
554 if (sh->nb_refs[L0] > MAX_REFS || sh->nb_refs[L1] > MAX_REFS) {
555 av_log(s->avctx, AV_LOG_ERROR, "Too many refs: %d/%d.\n",
556 sh->nb_refs[L0], sh->nb_refs[L1]);
557 return AVERROR_INVALIDDATA;
560 sh->rpl_modification_flag[0] = 0;
561 sh->rpl_modification_flag[1] = 0;
562 nb_refs = ff_hevc_frame_nb_refs(s);
564 av_log(s->avctx, AV_LOG_ERROR, "Zero refs for a frame with P or B slices.\n");
565 return AVERROR_INVALIDDATA;
568 if (s->pps->lists_modification_present_flag && nb_refs > 1) {
569 sh->rpl_modification_flag[0] = get_bits1(gb);
570 if (sh->rpl_modification_flag[0]) {
571 for (i = 0; i < sh->nb_refs[L0]; i++)
572 sh->list_entry_lx[0][i] = get_bits(gb, av_ceil_log2(nb_refs));
575 if (sh->slice_type == B_SLICE) {
576 sh->rpl_modification_flag[1] = get_bits1(gb);
577 if (sh->rpl_modification_flag[1] == 1)
578 for (i = 0; i < sh->nb_refs[L1]; i++)
579 sh->list_entry_lx[1][i] = get_bits(gb, av_ceil_log2(nb_refs));
583 if (sh->slice_type == B_SLICE)
584 sh->mvd_l1_zero_flag = get_bits1(gb);
586 if (s->pps->cabac_init_present_flag)
587 sh->cabac_init_flag = get_bits1(gb);
589 sh->cabac_init_flag = 0;
591 sh->collocated_ref_idx = 0;
592 if (sh->slice_temporal_mvp_enabled_flag) {
593 sh->collocated_list = L0;
594 if (sh->slice_type == B_SLICE)
595 sh->collocated_list = !get_bits1(gb);
597 if (sh->nb_refs[sh->collocated_list] > 1) {
598 sh->collocated_ref_idx = get_ue_golomb_long(gb);
599 if (sh->collocated_ref_idx >= sh->nb_refs[sh->collocated_list]) {
600 av_log(s->avctx, AV_LOG_ERROR,
601 "Invalid collocated_ref_idx: %d.\n",
602 sh->collocated_ref_idx);
603 return AVERROR_INVALIDDATA;
608 if ((s->pps->weighted_pred_flag && sh->slice_type == P_SLICE) ||
609 (s->pps->weighted_bipred_flag && sh->slice_type == B_SLICE)) {
610 pred_weight_table(s, gb);
613 sh->max_num_merge_cand = 5 - get_ue_golomb_long(gb);
614 if (sh->max_num_merge_cand < 1 || sh->max_num_merge_cand > 5) {
615 av_log(s->avctx, AV_LOG_ERROR,
616 "Invalid number of merging MVP candidates: %d.\n",
617 sh->max_num_merge_cand);
618 return AVERROR_INVALIDDATA;
622 sh->slice_qp_delta = get_se_golomb(gb);
624 if (s->pps->pic_slice_level_chroma_qp_offsets_present_flag) {
625 sh->slice_cb_qp_offset = get_se_golomb(gb);
626 sh->slice_cr_qp_offset = get_se_golomb(gb);
628 sh->slice_cb_qp_offset = 0;
629 sh->slice_cr_qp_offset = 0;
632 if (s->pps->deblocking_filter_control_present_flag) {
633 int deblocking_filter_override_flag = 0;
635 if (s->pps->deblocking_filter_override_enabled_flag)
636 deblocking_filter_override_flag = get_bits1(gb);
638 if (deblocking_filter_override_flag) {
639 sh->disable_deblocking_filter_flag = get_bits1(gb);
640 if (!sh->disable_deblocking_filter_flag) {
641 sh->beta_offset = get_se_golomb(gb) * 2;
642 sh->tc_offset = get_se_golomb(gb) * 2;
645 sh->disable_deblocking_filter_flag = s->pps->disable_dbf;
646 sh->beta_offset = s->pps->beta_offset;
647 sh->tc_offset = s->pps->tc_offset;
650 sh->disable_deblocking_filter_flag = 0;
655 if (s->pps->seq_loop_filter_across_slices_enabled_flag &&
656 (sh->slice_sample_adaptive_offset_flag[0] ||
657 sh->slice_sample_adaptive_offset_flag[1] ||
658 !sh->disable_deblocking_filter_flag)) {
659 sh->slice_loop_filter_across_slices_enabled_flag = get_bits1(gb);
661 sh->slice_loop_filter_across_slices_enabled_flag = s->pps->seq_loop_filter_across_slices_enabled_flag;
663 } else if (!s->slice_initialized) {
664 av_log(s->avctx, AV_LOG_ERROR, "Independent slice segment missing.\n");
665 return AVERROR_INVALIDDATA;
668 sh->num_entry_point_offsets = 0;
669 if (s->pps->tiles_enabled_flag || s->pps->entropy_coding_sync_enabled_flag) {
670 sh->num_entry_point_offsets = get_ue_golomb_long(gb);
671 if (sh->num_entry_point_offsets > 0) {
672 int offset_len = get_ue_golomb_long(gb) + 1;
673 int segments = offset_len >> 4;
674 int rest = (offset_len & 15);
675 av_freep(&sh->entry_point_offset);
676 av_freep(&sh->offset);
678 sh->entry_point_offset = av_malloc_array(sh->num_entry_point_offsets, sizeof(int));
679 sh->offset = av_malloc_array(sh->num_entry_point_offsets, sizeof(int));
680 sh->size = av_malloc_array(sh->num_entry_point_offsets, sizeof(int));
681 if (!sh->entry_point_offset || !sh->offset || !sh->size) {
682 sh->num_entry_point_offsets = 0;
683 av_log(s->avctx, AV_LOG_ERROR, "Failed to allocate memory\n");
684 return AVERROR(ENOMEM);
686 for (i = 0; i < sh->num_entry_point_offsets; i++) {
688 for (j = 0; j < segments; j++) {
690 val += get_bits(gb, 16);
694 val += get_bits(gb, rest);
696 sh->entry_point_offset[i] = val + 1; // +1; // +1 to get the size
698 if (s->threads_number > 1 && (s->pps->num_tile_rows > 1 || s->pps->num_tile_columns > 1)) {
699 s->enable_parallel_tiles = 0; // TODO: you can enable tiles in parallel here
700 s->threads_number = 1;
702 s->enable_parallel_tiles = 0;
704 s->enable_parallel_tiles = 0;
707 if (s->pps->slice_header_extension_present_flag) {
708 unsigned int length = get_ue_golomb_long(gb);
709 for (i = 0; i < length; i++)
710 skip_bits(gb, 8); // slice_header_extension_data_byte
713 // Inferred parameters
714 sh->slice_qp = 26U + s->pps->pic_init_qp_minus26 + sh->slice_qp_delta;
715 if (sh->slice_qp > 51 ||
716 sh->slice_qp < -s->sps->qp_bd_offset) {
717 av_log(s->avctx, AV_LOG_ERROR,
718 "The slice_qp %d is outside the valid range "
721 -s->sps->qp_bd_offset);
722 return AVERROR_INVALIDDATA;
725 sh->slice_ctb_addr_rs = sh->slice_segment_addr;
727 if (!s->sh.slice_ctb_addr_rs && s->sh.dependent_slice_segment_flag) {
728 av_log(s->avctx, AV_LOG_ERROR, "Impossible slice segment.\n");
729 return AVERROR_INVALIDDATA;
732 s->HEVClc->first_qp_group = !s->sh.dependent_slice_segment_flag;
734 if (!s->pps->cu_qp_delta_enabled_flag)
735 s->HEVClc->qp_y = s->sh.slice_qp;
737 s->slice_initialized = 1;
742 #define CTB(tab, x, y) ((tab)[(y) * s->sps->ctb_width + (x)])
744 #define SET_SAO(elem, value) \
746 if (!sao_merge_up_flag && !sao_merge_left_flag) \
748 else if (sao_merge_left_flag) \
749 sao->elem = CTB(s->sao, rx-1, ry).elem; \
750 else if (sao_merge_up_flag) \
751 sao->elem = CTB(s->sao, rx, ry-1).elem; \
756 static void hls_sao_param(HEVCContext *s, int rx, int ry)
758 HEVCLocalContext *lc = s->HEVClc;
759 int sao_merge_left_flag = 0;
760 int sao_merge_up_flag = 0;
761 int shift = s->sps->bit_depth - FFMIN(s->sps->bit_depth, 10);
762 SAOParams *sao = &CTB(s->sao, rx, ry);
765 if (s->sh.slice_sample_adaptive_offset_flag[0] ||
766 s->sh.slice_sample_adaptive_offset_flag[1]) {
768 if (lc->ctb_left_flag)
769 sao_merge_left_flag = ff_hevc_sao_merge_flag_decode(s);
771 if (ry > 0 && !sao_merge_left_flag) {
773 sao_merge_up_flag = ff_hevc_sao_merge_flag_decode(s);
777 for (c_idx = 0; c_idx < 3; c_idx++) {
778 if (!s->sh.slice_sample_adaptive_offset_flag[c_idx]) {
779 sao->type_idx[c_idx] = SAO_NOT_APPLIED;
784 sao->type_idx[2] = sao->type_idx[1];
785 sao->eo_class[2] = sao->eo_class[1];
787 SET_SAO(type_idx[c_idx], ff_hevc_sao_type_idx_decode(s));
790 if (sao->type_idx[c_idx] == SAO_NOT_APPLIED)
793 for (i = 0; i < 4; i++)
794 SET_SAO(offset_abs[c_idx][i], ff_hevc_sao_offset_abs_decode(s));
796 if (sao->type_idx[c_idx] == SAO_BAND) {
797 for (i = 0; i < 4; i++) {
798 if (sao->offset_abs[c_idx][i]) {
799 SET_SAO(offset_sign[c_idx][i],
800 ff_hevc_sao_offset_sign_decode(s));
802 sao->offset_sign[c_idx][i] = 0;
805 SET_SAO(band_position[c_idx], ff_hevc_sao_band_position_decode(s));
806 } else if (c_idx != 2) {
807 SET_SAO(eo_class[c_idx], ff_hevc_sao_eo_class_decode(s));
810 // Inferred parameters
811 sao->offset_val[c_idx][0] = 0;
812 for (i = 0; i < 4; i++) {
813 sao->offset_val[c_idx][i + 1] = sao->offset_abs[c_idx][i] << shift;
814 if (sao->type_idx[c_idx] == SAO_EDGE) {
816 sao->offset_val[c_idx][i + 1] = -sao->offset_val[c_idx][i + 1];
817 } else if (sao->offset_sign[c_idx][i]) {
818 sao->offset_val[c_idx][i + 1] = -sao->offset_val[c_idx][i + 1];
827 static int hls_transform_unit(HEVCContext *s, int x0, int y0,
828 int xBase, int yBase, int cb_xBase, int cb_yBase,
829 int log2_cb_size, int log2_trafo_size,
830 int trafo_depth, int blk_idx)
832 HEVCLocalContext *lc = s->HEVClc;
834 if (lc->cu.pred_mode == MODE_INTRA) {
835 int trafo_size = 1 << log2_trafo_size;
836 ff_hevc_set_neighbour_available(s, x0, y0, trafo_size, trafo_size);
838 s->hpc.intra_pred[log2_trafo_size - 2](s, x0, y0, 0);
839 if (log2_trafo_size > 2) {
840 trafo_size = trafo_size << (s->sps->hshift[1] - 1);
841 ff_hevc_set_neighbour_available(s, x0, y0, trafo_size, trafo_size);
842 s->hpc.intra_pred[log2_trafo_size - 3](s, x0, y0, 1);
843 s->hpc.intra_pred[log2_trafo_size - 3](s, x0, y0, 2);
844 } else if (blk_idx == 3) {
845 trafo_size = trafo_size << s->sps->hshift[1];
846 ff_hevc_set_neighbour_available(s, xBase, yBase,
847 trafo_size, trafo_size);
848 s->hpc.intra_pred[log2_trafo_size - 2](s, xBase, yBase, 1);
849 s->hpc.intra_pred[log2_trafo_size - 2](s, xBase, yBase, 2);
853 if (lc->tt.cbf_luma ||
854 SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth], x0, y0) ||
855 SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth], x0, y0)) {
856 int scan_idx = SCAN_DIAG;
857 int scan_idx_c = SCAN_DIAG;
859 if (s->pps->cu_qp_delta_enabled_flag && !lc->tu.is_cu_qp_delta_coded) {
860 lc->tu.cu_qp_delta = ff_hevc_cu_qp_delta_abs(s);
861 if (lc->tu.cu_qp_delta != 0)
862 if (ff_hevc_cu_qp_delta_sign_flag(s) == 1)
863 lc->tu.cu_qp_delta = -lc->tu.cu_qp_delta;
864 lc->tu.is_cu_qp_delta_coded = 1;
866 if (lc->tu.cu_qp_delta < -(26 + s->sps->qp_bd_offset / 2) ||
867 lc->tu.cu_qp_delta > (25 + s->sps->qp_bd_offset / 2)) {
868 av_log(s->avctx, AV_LOG_ERROR,
869 "The cu_qp_delta %d is outside the valid range "
872 -(26 + s->sps->qp_bd_offset / 2),
873 (25 + s->sps->qp_bd_offset / 2));
874 return AVERROR_INVALIDDATA;
877 ff_hevc_set_qPy(s, x0, y0, cb_xBase, cb_yBase, log2_cb_size);
880 if (lc->cu.pred_mode == MODE_INTRA && log2_trafo_size < 4) {
881 if (lc->tu.cur_intra_pred_mode >= 6 &&
882 lc->tu.cur_intra_pred_mode <= 14) {
883 scan_idx = SCAN_VERT;
884 } else if (lc->tu.cur_intra_pred_mode >= 22 &&
885 lc->tu.cur_intra_pred_mode <= 30) {
886 scan_idx = SCAN_HORIZ;
889 if (lc->pu.intra_pred_mode_c >= 6 &&
890 lc->pu.intra_pred_mode_c <= 14) {
891 scan_idx_c = SCAN_VERT;
892 } else if (lc->pu.intra_pred_mode_c >= 22 &&
893 lc->pu.intra_pred_mode_c <= 30) {
894 scan_idx_c = SCAN_HORIZ;
899 ff_hevc_hls_residual_coding(s, x0, y0, log2_trafo_size, scan_idx, 0);
900 if (log2_trafo_size > 2) {
901 if (SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth], x0, y0))
902 ff_hevc_hls_residual_coding(s, x0, y0, log2_trafo_size - 1, scan_idx_c, 1);
903 if (SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth], x0, y0))
904 ff_hevc_hls_residual_coding(s, x0, y0, log2_trafo_size - 1, scan_idx_c, 2);
905 } else if (blk_idx == 3) {
906 if (SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth], xBase, yBase))
907 ff_hevc_hls_residual_coding(s, xBase, yBase, log2_trafo_size, scan_idx_c, 1);
908 if (SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth], xBase, yBase))
909 ff_hevc_hls_residual_coding(s, xBase, yBase, log2_trafo_size, scan_idx_c, 2);
915 static void set_deblocking_bypass(HEVCContext *s, int x0, int y0, int log2_cb_size)
917 int cb_size = 1 << log2_cb_size;
918 int log2_min_pu_size = s->sps->log2_min_pu_size;
920 int min_pu_width = s->sps->min_pu_width;
921 int x_end = FFMIN(x0 + cb_size, s->sps->width);
922 int y_end = FFMIN(y0 + cb_size, s->sps->height);
925 for (j = (y0 >> log2_min_pu_size); j < (y_end >> log2_min_pu_size); j++)
926 for (i = (x0 >> log2_min_pu_size); i < (x_end >> log2_min_pu_size); i++)
927 s->is_pcm[i + j * min_pu_width] = 2;
930 static int hls_transform_tree(HEVCContext *s, int x0, int y0,
931 int xBase, int yBase, int cb_xBase, int cb_yBase,
932 int log2_cb_size, int log2_trafo_size,
933 int trafo_depth, int blk_idx)
935 HEVCLocalContext *lc = s->HEVClc;
936 uint8_t split_transform_flag;
939 if (trafo_depth > 0 && log2_trafo_size == 2) {
940 SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth], x0, y0) =
941 SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth - 1], xBase, yBase);
942 SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth], x0, y0) =
943 SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth - 1], xBase, yBase);
945 SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth], x0, y0) =
946 SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth], x0, y0) = 0;
949 if (lc->cu.intra_split_flag) {
950 if (trafo_depth == 1)
951 lc->tu.cur_intra_pred_mode = lc->pu.intra_pred_mode[blk_idx];
953 lc->tu.cur_intra_pred_mode = lc->pu.intra_pred_mode[0];
958 lc->tt.inter_split_flag = s->sps->max_transform_hierarchy_depth_inter == 0 &&
959 lc->cu.pred_mode == MODE_INTER &&
960 lc->cu.part_mode != PART_2Nx2N &&
963 if (log2_trafo_size <= s->sps->log2_max_trafo_size &&
964 log2_trafo_size > s->sps->log2_min_tb_size &&
965 trafo_depth < lc->cu.max_trafo_depth &&
966 !(lc->cu.intra_split_flag && trafo_depth == 0)) {
967 split_transform_flag = ff_hevc_split_transform_flag_decode(s, log2_trafo_size);
969 split_transform_flag = log2_trafo_size > s->sps->log2_max_trafo_size ||
970 (lc->cu.intra_split_flag && trafo_depth == 0) ||
971 lc->tt.inter_split_flag;
974 if (log2_trafo_size > 2) {
975 if (trafo_depth == 0 ||
976 SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth - 1], xBase, yBase)) {
977 SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth], x0, y0) =
978 ff_hevc_cbf_cb_cr_decode(s, trafo_depth);
981 if (trafo_depth == 0 ||
982 SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth - 1], xBase, yBase)) {
983 SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth], x0, y0) =
984 ff_hevc_cbf_cb_cr_decode(s, trafo_depth);
988 if (split_transform_flag) {
989 int x1 = x0 + ((1 << log2_trafo_size) >> 1);
990 int y1 = y0 + ((1 << log2_trafo_size) >> 1);
992 ret = hls_transform_tree(s, x0, y0, x0, y0, cb_xBase, cb_yBase,
993 log2_cb_size, log2_trafo_size - 1,
997 ret = hls_transform_tree(s, x1, y0, x0, y0, cb_xBase, cb_yBase,
998 log2_cb_size, log2_trafo_size - 1,
1002 ret = hls_transform_tree(s, x0, y1, x0, y0, cb_xBase, cb_yBase,
1003 log2_cb_size, log2_trafo_size - 1,
1004 trafo_depth + 1, 2);
1007 ret = hls_transform_tree(s, x1, y1, x0, y0, cb_xBase, cb_yBase,
1008 log2_cb_size, log2_trafo_size - 1,
1009 trafo_depth + 1, 3);
1013 int min_tu_size = 1 << s->sps->log2_min_tb_size;
1014 int log2_min_tu_size = s->sps->log2_min_tb_size;
1015 int min_tu_width = s->sps->min_tb_width;
1017 if (lc->cu.pred_mode == MODE_INTRA || trafo_depth != 0 ||
1018 SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth], x0, y0) ||
1019 SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth], x0, y0)) {
1020 lc->tt.cbf_luma = ff_hevc_cbf_luma_decode(s, trafo_depth);
1023 ret = hls_transform_unit(s, x0, y0, xBase, yBase, cb_xBase, cb_yBase,
1024 log2_cb_size, log2_trafo_size, trafo_depth,
1028 // TODO: store cbf_luma somewhere else
1029 if (lc->tt.cbf_luma) {
1031 for (i = 0; i < (1 << log2_trafo_size); i += min_tu_size)
1032 for (j = 0; j < (1 << log2_trafo_size); j += min_tu_size) {
1033 int x_tu = (x0 + j) >> log2_min_tu_size;
1034 int y_tu = (y0 + i) >> log2_min_tu_size;
1035 s->cbf_luma[y_tu * min_tu_width + x_tu] = 1;
1038 if (!s->sh.disable_deblocking_filter_flag) {
1039 ff_hevc_deblocking_boundary_strengths(s, x0, y0, log2_trafo_size);
1040 if (s->pps->transquant_bypass_enable_flag &&
1041 lc->cu.cu_transquant_bypass_flag)
1042 set_deblocking_bypass(s, x0, y0, log2_trafo_size);
1048 static int hls_pcm_sample(HEVCContext *s, int x0, int y0, int log2_cb_size)
1050 //TODO: non-4:2:0 support
1051 HEVCLocalContext *lc = s->HEVClc;
1053 int cb_size = 1 << log2_cb_size;
1054 int stride0 = s->frame->linesize[0];
1055 uint8_t *dst0 = &s->frame->data[0][y0 * stride0 + (x0 << s->sps->pixel_shift)];
1056 int stride1 = s->frame->linesize[1];
1057 uint8_t *dst1 = &s->frame->data[1][(y0 >> s->sps->vshift[1]) * stride1 + ((x0 >> s->sps->hshift[1]) << s->sps->pixel_shift)];
1058 int stride2 = s->frame->linesize[2];
1059 uint8_t *dst2 = &s->frame->data[2][(y0 >> s->sps->vshift[2]) * stride2 + ((x0 >> s->sps->hshift[2]) << s->sps->pixel_shift)];
1061 int length = cb_size * cb_size * s->sps->pcm.bit_depth + ((cb_size * cb_size) >> 1) * s->sps->pcm.bit_depth_chroma;
1062 const uint8_t *pcm = skip_bytes(&lc->cc, (length + 7) >> 3);
1065 if (!s->sh.disable_deblocking_filter_flag)
1066 ff_hevc_deblocking_boundary_strengths(s, x0, y0, log2_cb_size);
1068 ret = init_get_bits(&gb, pcm, length);
1072 s->hevcdsp.put_pcm(dst0, stride0, cb_size, &gb, s->sps->pcm.bit_depth);
1073 s->hevcdsp.put_pcm(dst1, stride1, cb_size / 2, &gb, s->sps->pcm.bit_depth_chroma);
1074 s->hevcdsp.put_pcm(dst2, stride2, cb_size / 2, &gb, s->sps->pcm.bit_depth_chroma);
1079 * 8.5.3.2.2.1 Luma sample unidirectional interpolation process
1081 * @param s HEVC decoding context
1082 * @param dst target buffer for block data at block position
1083 * @param dststride stride of the dst buffer
1084 * @param ref reference picture buffer at origin (0, 0)
1085 * @param mv motion vector (relative to block position) to get pixel data from
1086 * @param x_off horizontal position of block from origin (0, 0)
1087 * @param y_off vertical position of block from origin (0, 0)
1088 * @param block_w width of block
1089 * @param block_h height of block
1090 * @param luma_weight weighting factor applied to the luma prediction
1091 * @param luma_offset additive offset applied to the luma prediction value
1094 static void luma_mc_uni(HEVCContext *s, uint8_t *dst, ptrdiff_t dststride,
1095 AVFrame *ref, const Mv *mv, int x_off, int y_off,
1096 int block_w, int block_h, int luma_weight, int luma_offset)
1098 HEVCLocalContext *lc = s->HEVClc;
1099 uint8_t *src = ref->data[0];
1100 ptrdiff_t srcstride = ref->linesize[0];
1101 int pic_width = s->sps->width;
1102 int pic_height = s->sps->height;
1105 int weight_flag = (s->sh.slice_type == P_SLICE && s->pps->weighted_pred_flag) ||
1106 (s->sh.slice_type == B_SLICE && s->pps->weighted_bipred_flag);
1107 int idx = ff_hevc_pel_weight[block_w];
1109 x_off += mv->x >> 2;
1110 y_off += mv->y >> 2;
1111 src += y_off * srcstride + (x_off << s->sps->pixel_shift);
1113 if (x_off < QPEL_EXTRA_BEFORE || y_off < QPEL_EXTRA_AFTER ||
1114 x_off >= pic_width - block_w - QPEL_EXTRA_AFTER ||
1115 y_off >= pic_height - block_h - QPEL_EXTRA_AFTER) {
1116 const int edge_emu_stride = EDGE_EMU_BUFFER_STRIDE << s->sps->pixel_shift;
1117 int offset = QPEL_EXTRA_BEFORE * srcstride + (QPEL_EXTRA_BEFORE << s->sps->pixel_shift);
1118 int buf_offset = QPEL_EXTRA_BEFORE * edge_emu_stride + (QPEL_EXTRA_BEFORE << s->sps->pixel_shift);
1120 s->vdsp.emulated_edge_mc(lc->edge_emu_buffer, src - offset,
1121 edge_emu_stride, srcstride,
1122 block_w + QPEL_EXTRA,
1123 block_h + QPEL_EXTRA,
1124 x_off - QPEL_EXTRA_BEFORE, y_off - QPEL_EXTRA_BEFORE,
1125 pic_width, pic_height);
1126 src = lc->edge_emu_buffer + buf_offset;
1127 srcstride = edge_emu_stride;
1131 s->hevcdsp.put_hevc_qpel_uni[idx][!!my][!!mx](dst, dststride, src, srcstride,
1132 block_h, mx, my, block_w);
1134 s->hevcdsp.put_hevc_qpel_uni_w[idx][!!my][!!mx](dst, dststride, src, srcstride,
1135 block_h, s->sh.luma_log2_weight_denom,
1136 luma_weight, luma_offset, mx, my, block_w);
1140 * 8.5.3.2.2.1 Luma sample bidirectional interpolation process
1142 * @param s HEVC decoding context
1143 * @param dst target buffer for block data at block position
1144 * @param dststride stride of the dst buffer
1145 * @param ref0 reference picture0 buffer at origin (0, 0)
1146 * @param mv0 motion vector0 (relative to block position) to get pixel data from
1147 * @param x_off horizontal position of block from origin (0, 0)
1148 * @param y_off vertical position of block from origin (0, 0)
1149 * @param block_w width of block
1150 * @param block_h height of block
1151 * @param ref1 reference picture1 buffer at origin (0, 0)
1152 * @param mv1 motion vector1 (relative to block position) to get pixel data from
1153 * @param current_mv current motion vector structure
1155 static void luma_mc_bi(HEVCContext *s, uint8_t *dst, ptrdiff_t dststride,
1156 AVFrame *ref0, const Mv *mv0, int x_off, int y_off,
1157 int block_w, int block_h, AVFrame *ref1, const Mv *mv1, struct MvField *current_mv)
1159 HEVCLocalContext *lc = s->HEVClc;
1160 DECLARE_ALIGNED(16, int16_t, tmp[MAX_PB_SIZE * MAX_PB_SIZE]);
1161 ptrdiff_t src0stride = ref0->linesize[0];
1162 ptrdiff_t src1stride = ref1->linesize[0];
1163 int pic_width = s->sps->width;
1164 int pic_height = s->sps->height;
1165 int mx0 = mv0->x & 3;
1166 int my0 = mv0->y & 3;
1167 int mx1 = mv1->x & 3;
1168 int my1 = mv1->y & 3;
1169 int weight_flag = (s->sh.slice_type == P_SLICE && s->pps->weighted_pred_flag) ||
1170 (s->sh.slice_type == B_SLICE && s->pps->weighted_bipred_flag);
1171 int x_off0 = x_off + (mv0->x >> 2);
1172 int y_off0 = y_off + (mv0->y >> 2);
1173 int x_off1 = x_off + (mv1->x >> 2);
1174 int y_off1 = y_off + (mv1->y >> 2);
1175 int idx = ff_hevc_pel_weight[block_w];
1177 uint8_t *src0 = ref0->data[0] + y_off0 * src0stride + (int)((unsigned)x_off0 << s->sps->pixel_shift);
1178 uint8_t *src1 = ref1->data[0] + y_off1 * src1stride + (int)((unsigned)x_off1 << s->sps->pixel_shift);
1180 if (x_off0 < QPEL_EXTRA_BEFORE || y_off0 < QPEL_EXTRA_AFTER ||
1181 x_off0 >= pic_width - block_w - QPEL_EXTRA_AFTER ||
1182 y_off0 >= pic_height - block_h - QPEL_EXTRA_AFTER) {
1183 const int edge_emu_stride = EDGE_EMU_BUFFER_STRIDE << s->sps->pixel_shift;
1184 int offset = QPEL_EXTRA_BEFORE * src0stride + (QPEL_EXTRA_BEFORE << s->sps->pixel_shift);
1185 int buf_offset = QPEL_EXTRA_BEFORE * edge_emu_stride + (QPEL_EXTRA_BEFORE << s->sps->pixel_shift);
1187 s->vdsp.emulated_edge_mc(lc->edge_emu_buffer, src0 - offset,
1188 edge_emu_stride, src0stride,
1189 block_w + QPEL_EXTRA,
1190 block_h + QPEL_EXTRA,
1191 x_off0 - QPEL_EXTRA_BEFORE, y_off0 - QPEL_EXTRA_BEFORE,
1192 pic_width, pic_height);
1193 src0 = lc->edge_emu_buffer + buf_offset;
1194 src0stride = edge_emu_stride;
1197 if (x_off1 < QPEL_EXTRA_BEFORE || y_off1 < QPEL_EXTRA_AFTER ||
1198 x_off1 >= pic_width - block_w - QPEL_EXTRA_AFTER ||
1199 y_off1 >= pic_height - block_h - QPEL_EXTRA_AFTER) {
1200 const int edge_emu_stride = EDGE_EMU_BUFFER_STRIDE << s->sps->pixel_shift;
1201 int offset = QPEL_EXTRA_BEFORE * src1stride + (QPEL_EXTRA_BEFORE << s->sps->pixel_shift);
1202 int buf_offset = QPEL_EXTRA_BEFORE * edge_emu_stride + (QPEL_EXTRA_BEFORE << s->sps->pixel_shift);
1204 s->vdsp.emulated_edge_mc(lc->edge_emu_buffer2, src1 - offset,
1205 edge_emu_stride, src1stride,
1206 block_w + QPEL_EXTRA,
1207 block_h + QPEL_EXTRA,
1208 x_off1 - QPEL_EXTRA_BEFORE, y_off1 - QPEL_EXTRA_BEFORE,
1209 pic_width, pic_height);
1210 src1 = lc->edge_emu_buffer2 + buf_offset;
1211 src1stride = edge_emu_stride;
1214 s->hevcdsp.put_hevc_qpel[idx][!!my0][!!mx0](tmp, MAX_PB_SIZE, src0, src0stride,
1215 block_h, mx0, my0, block_w);
1217 s->hevcdsp.put_hevc_qpel_bi[idx][!!my1][!!mx1](dst, dststride, src1, src1stride, tmp, MAX_PB_SIZE,
1218 block_h, mx1, my1, block_w);
1220 s->hevcdsp.put_hevc_qpel_bi_w[idx][!!my1][!!mx1](dst, dststride, src1, src1stride, tmp, MAX_PB_SIZE,
1221 block_h, s->sh.luma_log2_weight_denom,
1222 s->sh.luma_weight_l0[current_mv->ref_idx[0]],
1223 s->sh.luma_weight_l1[current_mv->ref_idx[1]],
1224 s->sh.luma_offset_l0[current_mv->ref_idx[0]],
1225 s->sh.luma_offset_l1[current_mv->ref_idx[1]],
1231 * 8.5.3.2.2.2 Chroma sample uniprediction interpolation process
1233 * @param s HEVC decoding context
1234 * @param dst1 target buffer for block data at block position (U plane)
1235 * @param dst2 target buffer for block data at block position (V plane)
1236 * @param dststride stride of the dst1 and dst2 buffers
1237 * @param ref reference picture buffer at origin (0, 0)
1238 * @param mv motion vector (relative to block position) to get pixel data from
1239 * @param x_off horizontal position of block from origin (0, 0)
1240 * @param y_off vertical position of block from origin (0, 0)
1241 * @param block_w width of block
1242 * @param block_h height of block
1243 * @param chroma_weight weighting factor applied to the chroma prediction
1244 * @param chroma_offset additive offset applied to the chroma prediction value
1247 static void chroma_mc_uni(HEVCContext *s, uint8_t *dst0,
1248 ptrdiff_t dststride, uint8_t *src0, ptrdiff_t srcstride, int reflist,
1249 int x_off, int y_off, int block_w, int block_h, struct MvField *current_mv, int chroma_weight, int chroma_offset)
1251 HEVCLocalContext *lc = s->HEVClc;
1252 int pic_width = s->sps->width >> s->sps->hshift[1];
1253 int pic_height = s->sps->height >> s->sps->vshift[1];
1254 const Mv *mv = ¤t_mv->mv[reflist];
1255 int weight_flag = (s->sh.slice_type == P_SLICE && s->pps->weighted_pred_flag) ||
1256 (s->sh.slice_type == B_SLICE && s->pps->weighted_bipred_flag);
1257 int idx = ff_hevc_pel_weight[block_w];
1258 int hshift = s->sps->hshift[1];
1259 int vshift = s->sps->vshift[1];
1260 intptr_t mx = mv->x & ((1 << (2 + hshift)) - 1);
1261 intptr_t my = mv->y & ((1 << (2 + vshift)) - 1);
1262 intptr_t _mx = mx << (1 - hshift);
1263 intptr_t _my = my << (1 - vshift);
1265 x_off += mv->x >> (2 + hshift);
1266 y_off += mv->y >> (2 + vshift);
1267 src0 += y_off * srcstride + (x_off << s->sps->pixel_shift);
1269 if (x_off < EPEL_EXTRA_BEFORE || y_off < EPEL_EXTRA_AFTER ||
1270 x_off >= pic_width - block_w - EPEL_EXTRA_AFTER ||
1271 y_off >= pic_height - block_h - EPEL_EXTRA_AFTER) {
1272 const int edge_emu_stride = EDGE_EMU_BUFFER_STRIDE << s->sps->pixel_shift;
1273 int offset0 = EPEL_EXTRA_BEFORE * (srcstride + (1 << s->sps->pixel_shift));
1274 int buf_offset0 = EPEL_EXTRA_BEFORE *
1275 (edge_emu_stride + (1 << s->sps->pixel_shift));
1276 s->vdsp.emulated_edge_mc(lc->edge_emu_buffer, src0 - offset0,
1277 edge_emu_stride, srcstride,
1278 block_w + EPEL_EXTRA, block_h + EPEL_EXTRA,
1279 x_off - EPEL_EXTRA_BEFORE,
1280 y_off - EPEL_EXTRA_BEFORE,
1281 pic_width, pic_height);
1283 src0 = lc->edge_emu_buffer + buf_offset0;
1284 srcstride = edge_emu_stride;
1287 s->hevcdsp.put_hevc_epel_uni[idx][!!my][!!mx](dst0, dststride, src0, srcstride,
1288 block_h, _mx, _my, block_w);
1290 s->hevcdsp.put_hevc_epel_uni_w[idx][!!my][!!mx](dst0, dststride, src0, srcstride,
1291 block_h, s->sh.chroma_log2_weight_denom,
1292 chroma_weight, chroma_offset, _mx, _my, block_w);
1296 * 8.5.3.2.2.2 Chroma sample bidirectional interpolation process
1298 * @param s HEVC decoding context
1299 * @param dst target buffer for block data at block position
1300 * @param dststride stride of the dst buffer
1301 * @param ref0 reference picture0 buffer at origin (0, 0)
1302 * @param mv0 motion vector0 (relative to block position) to get pixel data from
1303 * @param x_off horizontal position of block from origin (0, 0)
1304 * @param y_off vertical position of block from origin (0, 0)
1305 * @param block_w width of block
1306 * @param block_h height of block
1307 * @param ref1 reference picture1 buffer at origin (0, 0)
1308 * @param mv1 motion vector1 (relative to block position) to get pixel data from
1309 * @param current_mv current motion vector structure
1310 * @param cidx chroma component(cb, cr)
1312 static void chroma_mc_bi(HEVCContext *s, uint8_t *dst0, ptrdiff_t dststride, AVFrame *ref0, AVFrame *ref1,
1313 int x_off, int y_off, int block_w, int block_h, struct MvField *current_mv, int cidx)
1315 DECLARE_ALIGNED(16, int16_t, tmp [MAX_PB_SIZE * MAX_PB_SIZE]);
1316 int tmpstride = MAX_PB_SIZE;
1317 HEVCLocalContext *lc = s->HEVClc;
1318 uint8_t *src1 = ref0->data[cidx+1];
1319 uint8_t *src2 = ref1->data[cidx+1];
1320 ptrdiff_t src1stride = ref0->linesize[cidx+1];
1321 ptrdiff_t src2stride = ref1->linesize[cidx+1];
1322 int weight_flag = (s->sh.slice_type == P_SLICE && s->pps->weighted_pred_flag) ||
1323 (s->sh.slice_type == B_SLICE && s->pps->weighted_bipred_flag);
1324 int pic_width = s->sps->width >> s->sps->hshift[1];
1325 int pic_height = s->sps->height >> s->sps->vshift[1];
1326 Mv *mv0 = ¤t_mv->mv[0];
1327 Mv *mv1 = ¤t_mv->mv[1];
1328 int hshift = s->sps->hshift[1];
1329 int vshift = s->sps->vshift[1];
1331 intptr_t mx0 = mv0->x & ((1 << (2 + hshift)) - 1);
1332 intptr_t my0 = mv0->y & ((1 << (2 + vshift)) - 1);
1333 intptr_t mx1 = mv1->x & ((1 << (2 + hshift)) - 1);
1334 intptr_t my1 = mv1->y & ((1 << (2 + vshift)) - 1);
1335 intptr_t _mx0 = mx0 << (1 - hshift);
1336 intptr_t _my0 = my0 << (1 - vshift);
1337 intptr_t _mx1 = mx1 << (1 - hshift);
1338 intptr_t _my1 = my1 << (1 - vshift);
1340 int x_off0 = x_off + (mv0->x >> (2 + hshift));
1341 int y_off0 = y_off + (mv0->y >> (2 + vshift));
1342 int x_off1 = x_off + (mv1->x >> (2 + hshift));
1343 int y_off1 = y_off + (mv1->y >> (2 + vshift));
1344 int idx = ff_hevc_pel_weight[block_w];
1345 src1 += y_off0 * src1stride + (int)((unsigned)x_off0 << s->sps->pixel_shift);
1346 src2 += y_off1 * src2stride + (int)((unsigned)x_off1 << s->sps->pixel_shift);
1348 if (x_off0 < EPEL_EXTRA_BEFORE || y_off0 < EPEL_EXTRA_AFTER ||
1349 x_off0 >= pic_width - block_w - EPEL_EXTRA_AFTER ||
1350 y_off0 >= pic_height - block_h - EPEL_EXTRA_AFTER) {
1351 const int edge_emu_stride = EDGE_EMU_BUFFER_STRIDE << s->sps->pixel_shift;
1352 int offset1 = EPEL_EXTRA_BEFORE * (src1stride + (1 << s->sps->pixel_shift));
1353 int buf_offset1 = EPEL_EXTRA_BEFORE *
1354 (edge_emu_stride + (1 << s->sps->pixel_shift));
1356 s->vdsp.emulated_edge_mc(lc->edge_emu_buffer, src1 - offset1,
1357 edge_emu_stride, src1stride,
1358 block_w + EPEL_EXTRA, block_h + EPEL_EXTRA,
1359 x_off0 - EPEL_EXTRA_BEFORE,
1360 y_off0 - EPEL_EXTRA_BEFORE,
1361 pic_width, pic_height);
1363 src1 = lc->edge_emu_buffer + buf_offset1;
1364 src1stride = edge_emu_stride;
1367 if (x_off1 < EPEL_EXTRA_BEFORE || y_off1 < EPEL_EXTRA_AFTER ||
1368 x_off1 >= pic_width - block_w - EPEL_EXTRA_AFTER ||
1369 y_off1 >= pic_height - block_h - EPEL_EXTRA_AFTER) {
1370 const int edge_emu_stride = EDGE_EMU_BUFFER_STRIDE << s->sps->pixel_shift;
1371 int offset1 = EPEL_EXTRA_BEFORE * (src2stride + (1 << s->sps->pixel_shift));
1372 int buf_offset1 = EPEL_EXTRA_BEFORE *
1373 (edge_emu_stride + (1 << s->sps->pixel_shift));
1375 s->vdsp.emulated_edge_mc(lc->edge_emu_buffer2, src2 - offset1,
1376 edge_emu_stride, src2stride,
1377 block_w + EPEL_EXTRA, block_h + EPEL_EXTRA,
1378 x_off1 - EPEL_EXTRA_BEFORE,
1379 y_off1 - EPEL_EXTRA_BEFORE,
1380 pic_width, pic_height);
1382 src2 = lc->edge_emu_buffer2 + buf_offset1;
1383 src2stride = edge_emu_stride;
1386 s->hevcdsp.put_hevc_epel[idx][!!my0][!!mx0](tmp, tmpstride, src1, src1stride,
1387 block_h, _mx0, _my0, block_w);
1389 s->hevcdsp.put_hevc_epel_bi[idx][!!my1][!!mx1](dst0, s->frame->linesize[cidx+1],
1390 src2, src2stride, tmp, tmpstride,
1391 block_h, _mx1, _my1, block_w);
1393 s->hevcdsp.put_hevc_epel_bi_w[idx][!!my1][!!mx1](dst0, s->frame->linesize[cidx+1],
1394 src2, src2stride, tmp, tmpstride,
1396 s->sh.chroma_log2_weight_denom,
1397 s->sh.chroma_weight_l0[current_mv->ref_idx[0]][cidx],
1398 s->sh.chroma_weight_l1[current_mv->ref_idx[1]][cidx],
1399 s->sh.chroma_offset_l0[current_mv->ref_idx[0]][cidx],
1400 s->sh.chroma_offset_l1[current_mv->ref_idx[1]][cidx],
1401 _mx1, _my1, block_w);
1404 static void hevc_await_progress(HEVCContext *s, HEVCFrame *ref,
1405 const Mv *mv, int y0, int height)
1407 int y = (mv->y >> 2) + y0 + height + 9;
1409 if (s->threads_type == FF_THREAD_FRAME )
1410 ff_thread_await_progress(&ref->tf, y, 0);
1413 static void hls_prediction_unit(HEVCContext *s, int x0, int y0,
1415 int log2_cb_size, int partIdx)
1417 #define POS(c_idx, x, y) \
1418 &s->frame->data[c_idx][((y) >> s->sps->vshift[c_idx]) * s->frame->linesize[c_idx] + \
1419 (((x) >> s->sps->hshift[c_idx]) << s->sps->pixel_shift)]
1420 HEVCLocalContext *lc = s->HEVClc;
1422 struct MvField current_mv = {{{ 0 }}};
1424 int min_pu_width = s->sps->min_pu_width;
1426 MvField *tab_mvf = s->ref->tab_mvf;
1427 RefPicList *refPicList = s->ref->refPicList;
1428 HEVCFrame *ref0, *ref1;
1429 uint8_t *dst0 = POS(0, x0, y0);
1430 uint8_t *dst1 = POS(1, x0, y0);
1431 uint8_t *dst2 = POS(2, x0, y0);
1432 int log2_min_cb_size = s->sps->log2_min_cb_size;
1433 int min_cb_width = s->sps->min_cb_width;
1434 int x_cb = x0 >> log2_min_cb_size;
1435 int y_cb = y0 >> log2_min_cb_size;
1441 if (SAMPLE_CTB(s->skip_flag, x_cb, y_cb)) {
1442 if (s->sh.max_num_merge_cand > 1)
1443 merge_idx = ff_hevc_merge_idx_decode(s);
1447 ff_hevc_luma_mv_merge_mode(s, x0, y0,
1450 log2_cb_size, partIdx,
1451 merge_idx, ¤t_mv);
1452 x_pu = x0 >> s->sps->log2_min_pu_size;
1453 y_pu = y0 >> s->sps->log2_min_pu_size;
1455 for (i = 0; i < nPbW >> s->sps->log2_min_pu_size; i++)
1456 for (j = 0; j < nPbH >> s->sps->log2_min_pu_size; j++)
1457 tab_mvf[(y_pu + j) * min_pu_width + x_pu + i] = current_mv;
1458 } else { /* MODE_INTER */
1459 lc->pu.merge_flag = ff_hevc_merge_flag_decode(s);
1460 if (lc->pu.merge_flag) {
1461 if (s->sh.max_num_merge_cand > 1)
1462 merge_idx = ff_hevc_merge_idx_decode(s);
1466 ff_hevc_luma_mv_merge_mode(s, x0, y0, nPbW, nPbH, log2_cb_size,
1467 partIdx, merge_idx, ¤t_mv);
1468 x_pu = x0 >> s->sps->log2_min_pu_size;
1469 y_pu = y0 >> s->sps->log2_min_pu_size;
1471 for (i = 0; i < nPbW >> s->sps->log2_min_pu_size; i++)
1472 for (j = 0; j < nPbH >> s->sps->log2_min_pu_size; j++)
1473 tab_mvf[(y_pu + j) * min_pu_width + x_pu + i] = current_mv;
1475 enum InterPredIdc inter_pred_idc = PRED_L0;
1476 ff_hevc_set_neighbour_available(s, x0, y0, nPbW, nPbH);
1477 current_mv.pred_flag = 0;
1478 if (s->sh.slice_type == B_SLICE)
1479 inter_pred_idc = ff_hevc_inter_pred_idc_decode(s, nPbW, nPbH);
1481 if (inter_pred_idc != PRED_L1) {
1482 if (s->sh.nb_refs[L0]) {
1483 ref_idx[0] = ff_hevc_ref_idx_lx_decode(s, s->sh.nb_refs[L0]);
1484 current_mv.ref_idx[0] = ref_idx[0];
1486 current_mv.pred_flag = PF_L0;
1487 ff_hevc_hls_mvd_coding(s, x0, y0, 0);
1488 mvp_flag[0] = ff_hevc_mvp_lx_flag_decode(s);
1489 ff_hevc_luma_mv_mvp_mode(s, x0, y0, nPbW, nPbH, log2_cb_size,
1490 partIdx, merge_idx, ¤t_mv,
1492 current_mv.mv[0].x += lc->pu.mvd.x;
1493 current_mv.mv[0].y += lc->pu.mvd.y;
1496 if (inter_pred_idc != PRED_L0) {
1497 if (s->sh.nb_refs[L1]) {
1498 ref_idx[1] = ff_hevc_ref_idx_lx_decode(s, s->sh.nb_refs[L1]);
1499 current_mv.ref_idx[1] = ref_idx[1];
1502 if (s->sh.mvd_l1_zero_flag == 1 && inter_pred_idc == PRED_BI) {
1506 ff_hevc_hls_mvd_coding(s, x0, y0, 1);
1509 current_mv.pred_flag += PF_L1;
1510 mvp_flag[1] = ff_hevc_mvp_lx_flag_decode(s);
1511 ff_hevc_luma_mv_mvp_mode(s, x0, y0, nPbW, nPbH, log2_cb_size,
1512 partIdx, merge_idx, ¤t_mv,
1514 current_mv.mv[1].x += lc->pu.mvd.x;
1515 current_mv.mv[1].y += lc->pu.mvd.y;
1518 x_pu = x0 >> s->sps->log2_min_pu_size;
1519 y_pu = y0 >> s->sps->log2_min_pu_size;
1521 for (i = 0; i < nPbW >> s->sps->log2_min_pu_size; i++)
1522 for(j = 0; j < nPbH >> s->sps->log2_min_pu_size; j++)
1523 tab_mvf[(y_pu + j) * min_pu_width + x_pu + i] = current_mv;
1527 if (current_mv.pred_flag & PF_L0) {
1528 ref0 = refPicList[0].ref[current_mv.ref_idx[0]];
1531 hevc_await_progress(s, ref0, ¤t_mv.mv[0], y0, nPbH);
1533 if (current_mv.pred_flag & PF_L1) {
1534 ref1 = refPicList[1].ref[current_mv.ref_idx[1]];
1537 hevc_await_progress(s, ref1, ¤t_mv.mv[1], y0, nPbH);
1540 if (current_mv.pred_flag == PF_L0) {
1541 int x0_c = x0 >> s->sps->hshift[1];
1542 int y0_c = y0 >> s->sps->vshift[1];
1543 int nPbW_c = nPbW >> s->sps->hshift[1];
1544 int nPbH_c = nPbH >> s->sps->vshift[1];
1546 luma_mc_uni(s, dst0, s->frame->linesize[0], ref0->frame,
1547 ¤t_mv.mv[0], x0, y0, nPbW, nPbH,
1548 s->sh.luma_weight_l0[current_mv.ref_idx[0]],
1549 s->sh.luma_offset_l0[current_mv.ref_idx[0]]);
1551 chroma_mc_uni(s, dst1, s->frame->linesize[1], ref0->frame->data[1], ref0->frame->linesize[1],
1552 0, x0_c, y0_c, nPbW_c, nPbH_c, ¤t_mv,
1553 s->sh.chroma_weight_l0[current_mv.ref_idx[0]][0], s->sh.chroma_offset_l0[current_mv.ref_idx[0]][0]);
1554 chroma_mc_uni(s, dst2, s->frame->linesize[2], ref0->frame->data[2], ref0->frame->linesize[2],
1555 0, x0_c, y0_c, nPbW_c, nPbH_c, ¤t_mv,
1556 s->sh.chroma_weight_l0[current_mv.ref_idx[0]][1], s->sh.chroma_offset_l0[current_mv.ref_idx[0]][1]);
1557 } else if (current_mv.pred_flag == PF_L1) {
1558 int x0_c = x0 >> s->sps->hshift[1];
1559 int y0_c = y0 >> s->sps->vshift[1];
1560 int nPbW_c = nPbW >> s->sps->hshift[1];
1561 int nPbH_c = nPbH >> s->sps->vshift[1];
1563 luma_mc_uni(s, dst0, s->frame->linesize[0], ref1->frame,
1564 ¤t_mv.mv[1], x0, y0, nPbW, nPbH,
1565 s->sh.luma_weight_l1[current_mv.ref_idx[1]],
1566 s->sh.luma_offset_l1[current_mv.ref_idx[1]]);
1568 chroma_mc_uni(s, dst1, s->frame->linesize[1], ref1->frame->data[1], ref1->frame->linesize[1],
1569 1, x0_c, y0_c, nPbW_c, nPbH_c, ¤t_mv,
1570 s->sh.chroma_weight_l1[current_mv.ref_idx[1]][0], s->sh.chroma_offset_l1[current_mv.ref_idx[1]][0]);
1572 chroma_mc_uni(s, dst2, s->frame->linesize[2], ref1->frame->data[2], ref1->frame->linesize[2],
1573 1, x0_c, y0_c, nPbW_c, nPbH_c, ¤t_mv,
1574 s->sh.chroma_weight_l1[current_mv.ref_idx[1]][1], s->sh.chroma_offset_l1[current_mv.ref_idx[1]][1]);
1575 } else if (current_mv.pred_flag == PF_BI) {
1576 int x0_c = x0 >> s->sps->hshift[1];
1577 int y0_c = y0 >> s->sps->vshift[1];
1578 int nPbW_c = nPbW >> s->sps->hshift[1];
1579 int nPbH_c = nPbH >> s->sps->vshift[1];
1581 luma_mc_bi(s, dst0, s->frame->linesize[0], ref0->frame,
1582 ¤t_mv.mv[0], x0, y0, nPbW, nPbH,
1583 ref1->frame, ¤t_mv.mv[1], ¤t_mv);
1585 chroma_mc_bi(s, dst1, s->frame->linesize[1], ref0->frame, ref1->frame,
1586 x0_c, y0_c, nPbW_c, nPbH_c, ¤t_mv, 0);
1588 chroma_mc_bi(s, dst2, s->frame->linesize[2], ref0->frame, ref1->frame,
1589 x0_c, y0_c, nPbW_c, nPbH_c, ¤t_mv, 1);
1596 static int luma_intra_pred_mode(HEVCContext *s, int x0, int y0, int pu_size,
1597 int prev_intra_luma_pred_flag)
1599 HEVCLocalContext *lc = s->HEVClc;
1600 int x_pu = x0 >> s->sps->log2_min_pu_size;
1601 int y_pu = y0 >> s->sps->log2_min_pu_size;
1602 int min_pu_width = s->sps->min_pu_width;
1603 int size_in_pus = pu_size >> s->sps->log2_min_pu_size;
1604 int x0b = x0 & ((1 << s->sps->log2_ctb_size) - 1);
1605 int y0b = y0 & ((1 << s->sps->log2_ctb_size) - 1);
1607 int cand_up = (lc->ctb_up_flag || y0b) ?
1608 s->tab_ipm[(y_pu - 1) * min_pu_width + x_pu] : INTRA_DC;
1609 int cand_left = (lc->ctb_left_flag || x0b) ?
1610 s->tab_ipm[y_pu * min_pu_width + x_pu - 1] : INTRA_DC;
1612 int y_ctb = (y0 >> (s->sps->log2_ctb_size)) << (s->sps->log2_ctb_size);
1614 MvField *tab_mvf = s->ref->tab_mvf;
1615 int intra_pred_mode;
1619 // intra_pred_mode prediction does not cross vertical CTB boundaries
1620 if ((y0 - 1) < y_ctb)
1623 if (cand_left == cand_up) {
1624 if (cand_left < 2) {
1625 candidate[0] = INTRA_PLANAR;
1626 candidate[1] = INTRA_DC;
1627 candidate[2] = INTRA_ANGULAR_26;
1629 candidate[0] = cand_left;
1630 candidate[1] = 2 + ((cand_left - 2 - 1 + 32) & 31);
1631 candidate[2] = 2 + ((cand_left - 2 + 1) & 31);
1634 candidate[0] = cand_left;
1635 candidate[1] = cand_up;
1636 if (candidate[0] != INTRA_PLANAR && candidate[1] != INTRA_PLANAR) {
1637 candidate[2] = INTRA_PLANAR;
1638 } else if (candidate[0] != INTRA_DC && candidate[1] != INTRA_DC) {
1639 candidate[2] = INTRA_DC;
1641 candidate[2] = INTRA_ANGULAR_26;
1645 if (prev_intra_luma_pred_flag) {
1646 intra_pred_mode = candidate[lc->pu.mpm_idx];
1648 if (candidate[0] > candidate[1])
1649 FFSWAP(uint8_t, candidate[0], candidate[1]);
1650 if (candidate[0] > candidate[2])
1651 FFSWAP(uint8_t, candidate[0], candidate[2]);
1652 if (candidate[1] > candidate[2])
1653 FFSWAP(uint8_t, candidate[1], candidate[2]);
1655 intra_pred_mode = lc->pu.rem_intra_luma_pred_mode;
1656 for (i = 0; i < 3; i++)
1657 if (intra_pred_mode >= candidate[i])
1661 /* write the intra prediction units into the mv array */
1664 for (i = 0; i < size_in_pus; i++) {
1665 memset(&s->tab_ipm[(y_pu + i) * min_pu_width + x_pu],
1666 intra_pred_mode, size_in_pus);
1668 for (j = 0; j < size_in_pus; j++) {
1669 tab_mvf[(y_pu + j) * min_pu_width + x_pu + i].pred_flag = PF_INTRA;
1673 return intra_pred_mode;
1676 static av_always_inline void set_ct_depth(HEVCContext *s, int x0, int y0,
1677 int log2_cb_size, int ct_depth)
1679 int length = (1 << log2_cb_size) >> s->sps->log2_min_cb_size;
1680 int x_cb = x0 >> s->sps->log2_min_cb_size;
1681 int y_cb = y0 >> s->sps->log2_min_cb_size;
1684 for (y = 0; y < length; y++)
1685 memset(&s->tab_ct_depth[(y_cb + y) * s->sps->min_cb_width + x_cb],
1689 static void intra_prediction_unit(HEVCContext *s, int x0, int y0,
1692 HEVCLocalContext *lc = s->HEVClc;
1693 static const uint8_t intra_chroma_table[4] = { 0, 26, 10, 1 };
1694 uint8_t prev_intra_luma_pred_flag[4];
1695 int split = lc->cu.part_mode == PART_NxN;
1696 int pb_size = (1 << log2_cb_size) >> split;
1697 int side = split + 1;
1701 for (i = 0; i < side; i++)
1702 for (j = 0; j < side; j++)
1703 prev_intra_luma_pred_flag[2 * i + j] = ff_hevc_prev_intra_luma_pred_flag_decode(s);
1705 for (i = 0; i < side; i++) {
1706 for (j = 0; j < side; j++) {
1707 if (prev_intra_luma_pred_flag[2 * i + j])
1708 lc->pu.mpm_idx = ff_hevc_mpm_idx_decode(s);
1710 lc->pu.rem_intra_luma_pred_mode = ff_hevc_rem_intra_luma_pred_mode_decode(s);
1712 lc->pu.intra_pred_mode[2 * i + j] =
1713 luma_intra_pred_mode(s, x0 + pb_size * j, y0 + pb_size * i, pb_size,
1714 prev_intra_luma_pred_flag[2 * i + j]);
1718 chroma_mode = ff_hevc_intra_chroma_pred_mode_decode(s);
1719 if (chroma_mode != 4) {
1720 if (lc->pu.intra_pred_mode[0] == intra_chroma_table[chroma_mode])
1721 lc->pu.intra_pred_mode_c = 34;
1723 lc->pu.intra_pred_mode_c = intra_chroma_table[chroma_mode];
1725 lc->pu.intra_pred_mode_c = lc->pu.intra_pred_mode[0];
1729 static void intra_prediction_unit_default_value(HEVCContext *s,
1733 HEVCLocalContext *lc = s->HEVClc;
1734 int pb_size = 1 << log2_cb_size;
1735 int size_in_pus = pb_size >> s->sps->log2_min_pu_size;
1736 int min_pu_width = s->sps->min_pu_width;
1737 MvField *tab_mvf = s->ref->tab_mvf;
1738 int x_pu = x0 >> s->sps->log2_min_pu_size;
1739 int y_pu = y0 >> s->sps->log2_min_pu_size;
1742 if (size_in_pus == 0)
1744 for (j = 0; j < size_in_pus; j++)
1745 memset(&s->tab_ipm[(y_pu + j) * min_pu_width + x_pu], INTRA_DC, size_in_pus);
1746 if (lc->cu.pred_mode == MODE_INTRA)
1747 for (j = 0; j < size_in_pus; j++)
1748 for (k = 0; k < size_in_pus; k++)
1749 tab_mvf[(y_pu + j) * min_pu_width + x_pu + k].pred_flag = PF_INTRA;
1752 static int hls_coding_unit(HEVCContext *s, int x0, int y0, int log2_cb_size)
1754 int cb_size = 1 << log2_cb_size;
1755 HEVCLocalContext *lc = s->HEVClc;
1756 int log2_min_cb_size = s->sps->log2_min_cb_size;
1757 int length = cb_size >> log2_min_cb_size;
1758 int min_cb_width = s->sps->min_cb_width;
1759 int x_cb = x0 >> log2_min_cb_size;
1760 int y_cb = y0 >> log2_min_cb_size;
1762 int qp_block_mask = (1<<(s->sps->log2_ctb_size - s->pps->diff_cu_qp_delta_depth)) - 1;
1766 lc->cu.rqt_root_cbf = 1;
1767 lc->cu.pred_mode = MODE_INTRA;
1768 lc->cu.part_mode = PART_2Nx2N;
1769 lc->cu.intra_split_flag = 0;
1770 lc->cu.pcm_flag = 0;
1772 SAMPLE_CTB(s->skip_flag, x_cb, y_cb) = 0;
1773 for (x = 0; x < 4; x++)
1774 lc->pu.intra_pred_mode[x] = 1;
1775 if (s->pps->transquant_bypass_enable_flag) {
1776 lc->cu.cu_transquant_bypass_flag = ff_hevc_cu_transquant_bypass_flag_decode(s);
1777 if (lc->cu.cu_transquant_bypass_flag)
1778 set_deblocking_bypass(s, x0, y0, log2_cb_size);
1780 lc->cu.cu_transquant_bypass_flag = 0;
1782 if (s->sh.slice_type != I_SLICE) {
1783 uint8_t skip_flag = ff_hevc_skip_flag_decode(s, x0, y0, x_cb, y_cb);
1785 x = y_cb * min_cb_width + x_cb;
1786 for (y = 0; y < length; y++) {
1787 memset(&s->skip_flag[x], skip_flag, length);
1790 lc->cu.pred_mode = skip_flag ? MODE_SKIP : MODE_INTER;
1793 if (SAMPLE_CTB(s->skip_flag, x_cb, y_cb)) {
1794 hls_prediction_unit(s, x0, y0, cb_size, cb_size, log2_cb_size, 0);
1795 intra_prediction_unit_default_value(s, x0, y0, log2_cb_size);
1797 if (!s->sh.disable_deblocking_filter_flag)
1798 ff_hevc_deblocking_boundary_strengths(s, x0, y0, log2_cb_size);
1800 if (s->sh.slice_type != I_SLICE)
1801 lc->cu.pred_mode = ff_hevc_pred_mode_decode(s);
1802 if (lc->cu.pred_mode != MODE_INTRA ||
1803 log2_cb_size == s->sps->log2_min_cb_size) {
1804 lc->cu.part_mode = ff_hevc_part_mode_decode(s, log2_cb_size);
1805 lc->cu.intra_split_flag = lc->cu.part_mode == PART_NxN &&
1806 lc->cu.pred_mode == MODE_INTRA;
1809 if (lc->cu.pred_mode == MODE_INTRA) {
1810 if (lc->cu.part_mode == PART_2Nx2N && s->sps->pcm_enabled_flag &&
1811 log2_cb_size >= s->sps->pcm.log2_min_pcm_cb_size &&
1812 log2_cb_size <= s->sps->pcm.log2_max_pcm_cb_size) {
1813 lc->cu.pcm_flag = ff_hevc_pcm_flag_decode(s);
1815 if (lc->cu.pcm_flag) {
1816 intra_prediction_unit_default_value(s, x0, y0, log2_cb_size);
1817 ret = hls_pcm_sample(s, x0, y0, log2_cb_size);
1818 if (s->sps->pcm.loop_filter_disable_flag)
1819 set_deblocking_bypass(s, x0, y0, log2_cb_size);
1824 intra_prediction_unit(s, x0, y0, log2_cb_size);
1827 intra_prediction_unit_default_value(s, x0, y0, log2_cb_size);
1828 switch (lc->cu.part_mode) {
1830 hls_prediction_unit(s, x0, y0, cb_size, cb_size, log2_cb_size, 0);
1833 hls_prediction_unit(s, x0, y0, cb_size, cb_size / 2, log2_cb_size, 0);
1834 hls_prediction_unit(s, x0, y0 + cb_size / 2, cb_size, cb_size / 2, log2_cb_size, 1);
1837 hls_prediction_unit(s, x0, y0, cb_size / 2, cb_size, log2_cb_size, 0);
1838 hls_prediction_unit(s, x0 + cb_size / 2, y0, cb_size / 2, cb_size, log2_cb_size, 1);
1841 hls_prediction_unit(s, x0, y0, cb_size, cb_size / 4, log2_cb_size, 0);
1842 hls_prediction_unit(s, x0, y0 + cb_size / 4, cb_size, cb_size * 3 / 4, log2_cb_size, 1);
1845 hls_prediction_unit(s, x0, y0, cb_size, cb_size * 3 / 4, log2_cb_size, 0);
1846 hls_prediction_unit(s, x0, y0 + cb_size * 3 / 4, cb_size, cb_size / 4, log2_cb_size, 1);
1849 hls_prediction_unit(s, x0, y0, cb_size / 4, cb_size, log2_cb_size, 0);
1850 hls_prediction_unit(s, x0 + cb_size / 4, y0, cb_size * 3 / 4, cb_size, log2_cb_size, 1);
1853 hls_prediction_unit(s, x0, y0, cb_size * 3 / 4, cb_size, log2_cb_size, 0);
1854 hls_prediction_unit(s, x0 + cb_size * 3 / 4, y0, cb_size / 4, cb_size, log2_cb_size, 1);
1857 hls_prediction_unit(s, x0, y0, cb_size / 2, cb_size / 2, log2_cb_size, 0);
1858 hls_prediction_unit(s, x0 + cb_size / 2, y0, cb_size / 2, cb_size / 2, log2_cb_size, 1);
1859 hls_prediction_unit(s, x0, y0 + cb_size / 2, cb_size / 2, cb_size / 2, log2_cb_size, 2);
1860 hls_prediction_unit(s, x0 + cb_size / 2, y0 + cb_size / 2, cb_size / 2, cb_size / 2, log2_cb_size, 3);
1865 if (!lc->cu.pcm_flag) {
1866 if (lc->cu.pred_mode != MODE_INTRA &&
1867 !(lc->cu.part_mode == PART_2Nx2N && lc->pu.merge_flag)) {
1868 lc->cu.rqt_root_cbf = ff_hevc_no_residual_syntax_flag_decode(s);
1870 if (lc->cu.rqt_root_cbf) {
1871 lc->cu.max_trafo_depth = lc->cu.pred_mode == MODE_INTRA ?
1872 s->sps->max_transform_hierarchy_depth_intra + lc->cu.intra_split_flag :
1873 s->sps->max_transform_hierarchy_depth_inter;
1874 ret = hls_transform_tree(s, x0, y0, x0, y0, x0, y0,
1876 log2_cb_size, 0, 0);
1880 if (!s->sh.disable_deblocking_filter_flag)
1881 ff_hevc_deblocking_boundary_strengths(s, x0, y0, log2_cb_size);
1886 if (s->pps->cu_qp_delta_enabled_flag && lc->tu.is_cu_qp_delta_coded == 0)
1887 ff_hevc_set_qPy(s, x0, y0, x0, y0, log2_cb_size);
1889 x = y_cb * min_cb_width + x_cb;
1890 for (y = 0; y < length; y++) {
1891 memset(&s->qp_y_tab[x], lc->qp_y, length);
1895 if(((x0 + (1<<log2_cb_size)) & qp_block_mask) == 0 &&
1896 ((y0 + (1<<log2_cb_size)) & qp_block_mask) == 0) {
1897 lc->qPy_pred = lc->qp_y;
1900 set_ct_depth(s, x0, y0, log2_cb_size, lc->ct.depth);
1905 static int hls_coding_quadtree(HEVCContext *s, int x0, int y0,
1906 int log2_cb_size, int cb_depth)
1908 HEVCLocalContext *lc = s->HEVClc;
1909 const int cb_size = 1 << log2_cb_size;
1911 int qp_block_mask = (1<<(s->sps->log2_ctb_size - s->pps->diff_cu_qp_delta_depth)) - 1;
1913 lc->ct.depth = cb_depth;
1914 if (x0 + cb_size <= s->sps->width &&
1915 y0 + cb_size <= s->sps->height &&
1916 log2_cb_size > s->sps->log2_min_cb_size) {
1917 SAMPLE(s->split_cu_flag, x0, y0) =
1918 ff_hevc_split_coding_unit_flag_decode(s, cb_depth, x0, y0);
1920 SAMPLE(s->split_cu_flag, x0, y0) =
1921 (log2_cb_size > s->sps->log2_min_cb_size);
1923 if (s->pps->cu_qp_delta_enabled_flag &&
1924 log2_cb_size >= s->sps->log2_ctb_size - s->pps->diff_cu_qp_delta_depth) {
1925 lc->tu.is_cu_qp_delta_coded = 0;
1926 lc->tu.cu_qp_delta = 0;
1929 if (SAMPLE(s->split_cu_flag, x0, y0)) {
1930 const int cb_size_split = cb_size >> 1;
1931 const int x1 = x0 + cb_size_split;
1932 const int y1 = y0 + cb_size_split;
1936 more_data = hls_coding_quadtree(s, x0, y0, log2_cb_size - 1, cb_depth + 1);
1940 if (more_data && x1 < s->sps->width) {
1941 more_data = hls_coding_quadtree(s, x1, y0, log2_cb_size - 1, cb_depth + 1);
1945 if (more_data && y1 < s->sps->height) {
1946 more_data = hls_coding_quadtree(s, x0, y1, log2_cb_size - 1, cb_depth + 1);
1950 if (more_data && x1 < s->sps->width &&
1951 y1 < s->sps->height) {
1952 more_data = hls_coding_quadtree(s, x1, y1, log2_cb_size - 1, cb_depth + 1);
1957 if(((x0 + (1<<log2_cb_size)) & qp_block_mask) == 0 &&
1958 ((y0 + (1<<log2_cb_size)) & qp_block_mask) == 0)
1959 lc->qPy_pred = lc->qp_y;
1962 return ((x1 + cb_size_split) < s->sps->width ||
1963 (y1 + cb_size_split) < s->sps->height);
1967 ret = hls_coding_unit(s, x0, y0, log2_cb_size);
1970 if ((!((x0 + cb_size) %
1971 (1 << (s->sps->log2_ctb_size))) ||
1972 (x0 + cb_size >= s->sps->width)) &&
1974 (1 << (s->sps->log2_ctb_size))) ||
1975 (y0 + cb_size >= s->sps->height))) {
1976 int end_of_slice_flag = ff_hevc_end_of_slice_flag_decode(s);
1977 return !end_of_slice_flag;
1986 static void hls_decode_neighbour(HEVCContext *s, int x_ctb, int y_ctb,
1989 HEVCLocalContext *lc = s->HEVClc;
1990 int ctb_size = 1 << s->sps->log2_ctb_size;
1991 int ctb_addr_rs = s->pps->ctb_addr_ts_to_rs[ctb_addr_ts];
1992 int ctb_addr_in_slice = ctb_addr_rs - s->sh.slice_addr;
1994 int tile_left_boundary, tile_up_boundary;
1995 int slice_left_boundary, slice_up_boundary;
1997 s->tab_slice_address[ctb_addr_rs] = s->sh.slice_addr;
1999 if (s->pps->entropy_coding_sync_enabled_flag) {
2000 if (x_ctb == 0 && (y_ctb & (ctb_size - 1)) == 0)
2001 lc->first_qp_group = 1;
2002 lc->end_of_tiles_x = s->sps->width;
2003 } else if (s->pps->tiles_enabled_flag) {
2004 if (ctb_addr_ts && s->pps->tile_id[ctb_addr_ts] != s->pps->tile_id[ctb_addr_ts - 1]) {
2005 int idxX = s->pps->col_idxX[x_ctb >> s->sps->log2_ctb_size];
2006 lc->end_of_tiles_x = x_ctb + (s->pps->column_width[idxX] << s->sps->log2_ctb_size);
2007 lc->first_qp_group = 1;
2010 lc->end_of_tiles_x = s->sps->width;
2013 lc->end_of_tiles_y = FFMIN(y_ctb + ctb_size, s->sps->height);
2015 if (s->pps->tiles_enabled_flag) {
2016 tile_left_boundary = x_ctb > 0 &&
2017 s->pps->tile_id[ctb_addr_ts] != s->pps->tile_id[s->pps->ctb_addr_rs_to_ts[ctb_addr_rs-1]];
2018 slice_left_boundary = x_ctb > 0 &&
2019 s->tab_slice_address[ctb_addr_rs] != s->tab_slice_address[ctb_addr_rs - 1];
2020 tile_up_boundary = y_ctb > 0 &&
2021 s->pps->tile_id[ctb_addr_ts] != s->pps->tile_id[s->pps->ctb_addr_rs_to_ts[ctb_addr_rs - s->sps->ctb_width]];
2022 slice_up_boundary = y_ctb > 0 &&
2023 s->tab_slice_address[ctb_addr_rs] != s->tab_slice_address[ctb_addr_rs - s->sps->ctb_width];
2025 tile_left_boundary =
2026 tile_up_boundary = 0;
2027 slice_left_boundary = ctb_addr_in_slice <= 0;
2028 slice_up_boundary = ctb_addr_in_slice < s->sps->ctb_width;
2030 lc->slice_or_tiles_left_boundary = slice_left_boundary + (tile_left_boundary << 1);
2031 lc->slice_or_tiles_up_boundary = slice_up_boundary + (tile_up_boundary << 1);
2032 lc->ctb_left_flag = ((x_ctb > 0) && (ctb_addr_in_slice > 0) && !tile_left_boundary);
2033 lc->ctb_up_flag = ((y_ctb > 0) && (ctb_addr_in_slice >= s->sps->ctb_width) && !tile_up_boundary);
2034 lc->ctb_up_right_flag = ((y_ctb > 0) && (ctb_addr_in_slice+1 >= s->sps->ctb_width) && (s->pps->tile_id[ctb_addr_ts] == s->pps->tile_id[s->pps->ctb_addr_rs_to_ts[ctb_addr_rs+1 - s->sps->ctb_width]]));
2035 lc->ctb_up_left_flag = ((x_ctb > 0) && (y_ctb > 0) && (ctb_addr_in_slice-1 >= s->sps->ctb_width) && (s->pps->tile_id[ctb_addr_ts] == s->pps->tile_id[s->pps->ctb_addr_rs_to_ts[ctb_addr_rs-1 - s->sps->ctb_width]]));
2038 static int hls_decode_entry(AVCodecContext *avctxt, void *isFilterThread)
2040 HEVCContext *s = avctxt->priv_data;
2041 int ctb_size = 1 << s->sps->log2_ctb_size;
2045 int ctb_addr_ts = s->pps->ctb_addr_rs_to_ts[s->sh.slice_ctb_addr_rs];
2047 if (!ctb_addr_ts && s->sh.dependent_slice_segment_flag) {
2048 av_log(s->avctx, AV_LOG_ERROR, "Impossible initial tile.\n");
2049 return AVERROR_INVALIDDATA;
2052 if (s->sh.dependent_slice_segment_flag) {
2053 int prev_rs = s->pps->ctb_addr_ts_to_rs[ctb_addr_ts - 1];
2054 if (s->tab_slice_address[prev_rs] != s->sh.slice_addr) {
2055 av_log(s->avctx, AV_LOG_ERROR, "Previous slice segment missing\n");
2056 return AVERROR_INVALIDDATA;
2060 while (more_data && ctb_addr_ts < s->sps->ctb_size) {
2061 int ctb_addr_rs = s->pps->ctb_addr_ts_to_rs[ctb_addr_ts];
2063 x_ctb = (ctb_addr_rs % ((s->sps->width + ctb_size - 1) >> s->sps->log2_ctb_size)) << s->sps->log2_ctb_size;
2064 y_ctb = (ctb_addr_rs / ((s->sps->width + ctb_size - 1) >> s->sps->log2_ctb_size)) << s->sps->log2_ctb_size;
2065 hls_decode_neighbour(s, x_ctb, y_ctb, ctb_addr_ts);
2067 ff_hevc_cabac_init(s, ctb_addr_ts);
2069 hls_sao_param(s, x_ctb >> s->sps->log2_ctb_size, y_ctb >> s->sps->log2_ctb_size);
2071 s->deblock[ctb_addr_rs].beta_offset = s->sh.beta_offset;
2072 s->deblock[ctb_addr_rs].tc_offset = s->sh.tc_offset;
2073 s->filter_slice_edges[ctb_addr_rs] = s->sh.slice_loop_filter_across_slices_enabled_flag;
2075 more_data = hls_coding_quadtree(s, x_ctb, y_ctb, s->sps->log2_ctb_size, 0);
2076 if (more_data < 0) {
2077 s->tab_slice_address[ctb_addr_rs] = -1;
2083 ff_hevc_save_states(s, ctb_addr_ts);
2084 ff_hevc_hls_filters(s, x_ctb, y_ctb, ctb_size);
2087 if (x_ctb + ctb_size >= s->sps->width &&
2088 y_ctb + ctb_size >= s->sps->height)
2089 ff_hevc_hls_filter(s, x_ctb, y_ctb);
2094 static int hls_slice_data(HEVCContext *s)
2102 s->avctx->execute(s->avctx, hls_decode_entry, arg, ret , 1, sizeof(int));
2105 static int hls_decode_entry_wpp(AVCodecContext *avctxt, void *input_ctb_row, int job, int self_id)
2107 HEVCContext *s1 = avctxt->priv_data, *s;
2108 HEVCLocalContext *lc;
2109 int ctb_size = 1<< s1->sps->log2_ctb_size;
2111 int *ctb_row_p = input_ctb_row;
2112 int ctb_row = ctb_row_p[job];
2113 int ctb_addr_rs = s1->sh.slice_ctb_addr_rs + ctb_row * ((s1->sps->width + ctb_size - 1) >> s1->sps->log2_ctb_size);
2114 int ctb_addr_ts = s1->pps->ctb_addr_rs_to_ts[ctb_addr_rs];
2115 int thread = ctb_row % s1->threads_number;
2118 s = s1->sList[self_id];
2122 ret = init_get_bits8(&lc->gb, s->data + s->sh.offset[ctb_row - 1], s->sh.size[ctb_row - 1]);
2126 ff_init_cabac_decoder(&lc->cc, s->data + s->sh.offset[(ctb_row)-1], s->sh.size[ctb_row - 1]);
2129 while(more_data && ctb_addr_ts < s->sps->ctb_size) {
2130 int x_ctb = (ctb_addr_rs % s->sps->ctb_width) << s->sps->log2_ctb_size;
2131 int y_ctb = (ctb_addr_rs / s->sps->ctb_width) << s->sps->log2_ctb_size;
2133 hls_decode_neighbour(s, x_ctb, y_ctb, ctb_addr_ts);
2135 ff_thread_await_progress2(s->avctx, ctb_row, thread, SHIFT_CTB_WPP);
2137 if (avpriv_atomic_int_get(&s1->wpp_err)){
2138 ff_thread_report_progress2(s->avctx, ctb_row , thread, SHIFT_CTB_WPP);
2142 ff_hevc_cabac_init(s, ctb_addr_ts);
2143 hls_sao_param(s, x_ctb >> s->sps->log2_ctb_size, y_ctb >> s->sps->log2_ctb_size);
2144 more_data = hls_coding_quadtree(s, x_ctb, y_ctb, s->sps->log2_ctb_size, 0);
2146 if (more_data < 0) {
2147 s->tab_slice_address[ctb_addr_rs] = -1;
2153 ff_hevc_save_states(s, ctb_addr_ts);
2154 ff_thread_report_progress2(s->avctx, ctb_row, thread, 1);
2155 ff_hevc_hls_filters(s, x_ctb, y_ctb, ctb_size);
2157 if (!more_data && (x_ctb+ctb_size) < s->sps->width && ctb_row != s->sh.num_entry_point_offsets) {
2158 avpriv_atomic_int_set(&s1->wpp_err, 1);
2159 ff_thread_report_progress2(s->avctx, ctb_row ,thread, SHIFT_CTB_WPP);
2163 if ((x_ctb+ctb_size) >= s->sps->width && (y_ctb+ctb_size) >= s->sps->height ) {
2164 ff_hevc_hls_filter(s, x_ctb, y_ctb);
2165 ff_thread_report_progress2(s->avctx, ctb_row , thread, SHIFT_CTB_WPP);
2168 ctb_addr_rs = s->pps->ctb_addr_ts_to_rs[ctb_addr_ts];
2171 if(x_ctb >= s->sps->width) {
2175 ff_thread_report_progress2(s->avctx, ctb_row ,thread, SHIFT_CTB_WPP);
2180 static int hls_slice_data_wpp(HEVCContext *s, const uint8_t *nal, int length)
2182 HEVCLocalContext *lc = s->HEVClc;
2183 int *ret = av_malloc_array(s->sh.num_entry_point_offsets + 1, sizeof(int));
2184 int *arg = av_malloc_array(s->sh.num_entry_point_offsets + 1, sizeof(int));
2186 int startheader, cmpt = 0;
2191 ff_alloc_entries(s->avctx, s->sh.num_entry_point_offsets + 1);
2194 for (i = 1; i < s->threads_number; i++) {
2195 s->sList[i] = av_malloc(sizeof(HEVCContext));
2196 memcpy(s->sList[i], s, sizeof(HEVCContext));
2197 s->HEVClcList[i] = av_malloc(sizeof(HEVCLocalContext));
2198 s->sList[i]->HEVClc = s->HEVClcList[i];
2202 offset = (lc->gb.index >> 3);
2204 for (j = 0, cmpt = 0, startheader = offset + s->sh.entry_point_offset[0]; j < s->skipped_bytes; j++) {
2205 if (s->skipped_bytes_pos[j] >= offset && s->skipped_bytes_pos[j] < startheader) {
2211 for (i = 1; i < s->sh.num_entry_point_offsets; i++) {
2212 offset += (s->sh.entry_point_offset[i - 1] - cmpt);
2213 for (j = 0, cmpt = 0, startheader = offset
2214 + s->sh.entry_point_offset[i]; j < s->skipped_bytes; j++) {
2215 if (s->skipped_bytes_pos[j] >= offset && s->skipped_bytes_pos[j] < startheader) {
2220 s->sh.size[i - 1] = s->sh.entry_point_offset[i] - cmpt;
2221 s->sh.offset[i - 1] = offset;
2224 if (s->sh.num_entry_point_offsets != 0) {
2225 offset += s->sh.entry_point_offset[s->sh.num_entry_point_offsets - 1] - cmpt;
2226 s->sh.size[s->sh.num_entry_point_offsets - 1] = length - offset;
2227 s->sh.offset[s->sh.num_entry_point_offsets - 1] = offset;
2232 for (i = 1; i < s->threads_number; i++) {
2233 s->sList[i]->HEVClc->first_qp_group = 1;
2234 s->sList[i]->HEVClc->qp_y = s->sList[0]->HEVClc->qp_y;
2235 memcpy(s->sList[i], s, sizeof(HEVCContext));
2236 s->sList[i]->HEVClc = s->HEVClcList[i];
2239 avpriv_atomic_int_set(&s->wpp_err, 0);
2240 ff_reset_entries(s->avctx);
2242 for (i = 0; i <= s->sh.num_entry_point_offsets; i++) {
2247 if (s->pps->entropy_coding_sync_enabled_flag)
2248 s->avctx->execute2(s->avctx, (void *) hls_decode_entry_wpp, arg, ret, s->sh.num_entry_point_offsets + 1);
2250 for (i = 0; i <= s->sh.num_entry_point_offsets; i++)
2258 * @return AVERROR_INVALIDDATA if the packet is not a valid NAL unit,
2259 * 0 if the unit should be skipped, 1 otherwise
2261 static int hls_nal_unit(HEVCContext *s)
2263 GetBitContext *gb = &s->HEVClc->gb;
2266 if (get_bits1(gb) != 0)
2267 return AVERROR_INVALIDDATA;
2269 s->nal_unit_type = get_bits(gb, 6);
2271 nuh_layer_id = get_bits(gb, 6);
2272 s->temporal_id = get_bits(gb, 3) - 1;
2273 if (s->temporal_id < 0)
2274 return AVERROR_INVALIDDATA;
2276 av_log(s->avctx, AV_LOG_DEBUG,
2277 "nal_unit_type: %d, nuh_layer_id: %dtemporal_id: %d\n",
2278 s->nal_unit_type, nuh_layer_id, s->temporal_id);
2280 return nuh_layer_id == 0;
2283 static void restore_tqb_pixels(HEVCContext *s)
2285 int min_pu_size = 1 << s->sps->log2_min_pu_size;
2288 for (c_idx = 0; c_idx < 3; c_idx++) {
2289 ptrdiff_t stride = s->frame->linesize[c_idx];
2290 int hshift = s->sps->hshift[c_idx];
2291 int vshift = s->sps->vshift[c_idx];
2292 for (y = 0; y < s->sps->min_pu_height; y++) {
2293 for (x = 0; x < s->sps->min_pu_width; x++) {
2294 if (s->is_pcm[y * s->sps->min_pu_width + x]) {
2296 int len = min_pu_size >> hshift;
2297 uint8_t *src = &s->frame->data[c_idx][((y << s->sps->log2_min_pu_size) >> vshift) * stride + (((x << s->sps->log2_min_pu_size) >> hshift) << s->sps->pixel_shift)];
2298 uint8_t *dst = &s->sao_frame->data[c_idx][((y << s->sps->log2_min_pu_size) >> vshift) * stride + (((x << s->sps->log2_min_pu_size) >> hshift) << s->sps->pixel_shift)];
2299 for (n = 0; n < (min_pu_size >> vshift); n++) {
2300 memcpy(dst, src, len);
2310 static int set_side_data(HEVCContext *s)
2312 AVFrame *out = s->ref->frame;
2314 if (s->sei_frame_packing_present &&
2315 s->frame_packing_arrangement_type >= 3 &&
2316 s->frame_packing_arrangement_type <= 5 &&
2317 s->content_interpretation_type > 0 &&
2318 s->content_interpretation_type < 3) {
2319 AVStereo3D *stereo = av_stereo3d_create_side_data(out);
2321 return AVERROR(ENOMEM);
2323 switch (s->frame_packing_arrangement_type) {
2325 if (s->quincunx_subsampling)
2326 stereo->type = AV_STEREO3D_SIDEBYSIDE_QUINCUNX;
2328 stereo->type = AV_STEREO3D_SIDEBYSIDE;
2331 stereo->type = AV_STEREO3D_TOPBOTTOM;
2334 stereo->type = AV_STEREO3D_FRAMESEQUENCE;
2338 if (s->content_interpretation_type == 2)
2339 stereo->flags = AV_STEREO3D_FLAG_INVERT;
2345 static int hevc_frame_start(HEVCContext *s)
2347 HEVCLocalContext *lc = s->HEVClc;
2348 int pic_size_in_ctb = ((s->sps->width >> s->sps->log2_min_cb_size) + 1) *
2349 ((s->sps->height >> s->sps->log2_min_cb_size) + 1);
2353 memset(s->horizontal_bs, 0, 2 * s->bs_width * (s->bs_height + 1));
2354 memset(s->vertical_bs, 0, 2 * s->bs_width * (s->bs_height + 1));
2355 memset(s->cbf_luma, 0, s->sps->min_tb_width * s->sps->min_tb_height);
2356 memset(s->is_pcm, 0, s->sps->min_pu_width * s->sps->min_pu_height);
2357 memset(s->tab_slice_address, -1, pic_size_in_ctb * sizeof(*s->tab_slice_address));
2360 s->first_nal_type = s->nal_unit_type;
2362 if (s->pps->tiles_enabled_flag)
2363 lc->end_of_tiles_x = s->pps->column_width[0] << s->sps->log2_ctb_size;
2365 ret = ff_hevc_set_new_ref(s, s->sps->sao_enabled ? &s->sao_frame : &s->frame,
2370 ret = ff_hevc_frame_rps(s);
2372 av_log(s->avctx, AV_LOG_ERROR, "Error constructing the frame RPS.\n");
2376 ret = set_side_data(s);
2380 cur_frame = s->sps->sao_enabled ? s->sao_frame : s->frame;
2381 cur_frame->pict_type = 3 - s->sh.slice_type;
2383 av_frame_unref(s->output_frame);
2384 ret = ff_hevc_output_frame(s, s->output_frame, 0);
2388 ff_thread_finish_setup(s->avctx);
2393 if (s->ref && s->threads_type == FF_THREAD_FRAME)
2394 ff_thread_report_progress(&s->ref->tf, INT_MAX, 0);
2399 static int decode_nal_unit(HEVCContext *s, const uint8_t *nal, int length)
2401 HEVCLocalContext *lc = s->HEVClc;
2402 GetBitContext *gb = &lc->gb;
2403 int ctb_addr_ts, ret;
2405 ret = init_get_bits8(gb, nal, length);
2409 ret = hls_nal_unit(s);
2411 av_log(s->avctx, AV_LOG_ERROR, "Invalid NAL unit %d, skipping.\n",
2417 switch (s->nal_unit_type) {
2419 ret = ff_hevc_decode_nal_vps(s);
2424 ret = ff_hevc_decode_nal_sps(s);
2429 ret = ff_hevc_decode_nal_pps(s);
2433 case NAL_SEI_PREFIX:
2434 case NAL_SEI_SUFFIX:
2435 ret = ff_hevc_decode_nal_sei(s);
2446 case NAL_BLA_W_RADL:
2448 case NAL_IDR_W_RADL:
2455 ret = hls_slice_header(s);
2459 if (s->max_ra == INT_MAX) {
2460 if (s->nal_unit_type == NAL_CRA_NUT || IS_BLA(s)) {
2464 s->max_ra = INT_MIN;
2468 if ((s->nal_unit_type == NAL_RASL_R || s->nal_unit_type == NAL_RASL_N) &&
2469 s->poc <= s->max_ra) {
2473 if (s->nal_unit_type == NAL_RASL_R && s->poc > s->max_ra)
2474 s->max_ra = INT_MIN;
2477 if (s->sh.first_slice_in_pic_flag) {
2478 ret = hevc_frame_start(s);
2481 } else if (!s->ref) {
2482 av_log(s->avctx, AV_LOG_ERROR, "First slice in a frame missing.\n");
2486 if (s->nal_unit_type != s->first_nal_type) {
2487 av_log(s->avctx, AV_LOG_ERROR,
2488 "Non-matching NAL types of the VCL NALUs: %d %d\n",
2489 s->first_nal_type, s->nal_unit_type);
2490 return AVERROR_INVALIDDATA;
2493 if (!s->sh.dependent_slice_segment_flag &&
2494 s->sh.slice_type != I_SLICE) {
2495 ret = ff_hevc_slice_rpl(s);
2497 av_log(s->avctx, AV_LOG_WARNING,
2498 "Error constructing the reference lists for the current slice.\n");
2503 if (s->threads_number > 1 && s->sh.num_entry_point_offsets > 0)
2504 ctb_addr_ts = hls_slice_data_wpp(s, nal, length);
2506 ctb_addr_ts = hls_slice_data(s);
2507 if (ctb_addr_ts >= (s->sps->ctb_width * s->sps->ctb_height)) {
2509 if ((s->pps->transquant_bypass_enable_flag ||
2510 (s->sps->pcm.loop_filter_disable_flag && s->sps->pcm_enabled_flag)) &&
2511 s->sps->sao_enabled)
2512 restore_tqb_pixels(s);
2515 if (ctb_addr_ts < 0) {
2522 s->seq_decode = (s->seq_decode + 1) & 0xff;
2523 s->max_ra = INT_MAX;
2529 av_log(s->avctx, AV_LOG_INFO,
2530 "Skipping NAL unit %d\n", s->nal_unit_type);
2535 if (s->avctx->err_recognition & AV_EF_EXPLODE)
2540 /* FIXME: This is adapted from ff_h264_decode_nal, avoiding duplication
2541 * between these functions would be nice. */
2542 int ff_hevc_extract_rbsp(HEVCContext *s, const uint8_t *src, int length,
2548 s->skipped_bytes = 0;
2549 #define STARTCODE_TEST \
2550 if (i + 2 < length && src[i + 1] == 0 && src[i + 2] <= 3) { \
2551 if (src[i + 2] != 3) { \
2552 /* startcode, so we must be past the end */ \
2557 #if HAVE_FAST_UNALIGNED
2558 #define FIND_FIRST_ZERO \
2559 if (i > 0 && !src[i]) \
2564 for (i = 0; i + 1 < length; i += 9) {
2565 if (!((~AV_RN64A(src + i) &
2566 (AV_RN64A(src + i) - 0x0100010001000101ULL)) &
2567 0x8000800080008080ULL))
2574 for (i = 0; i + 1 < length; i += 5) {
2575 if (!((~AV_RN32A(src + i) &
2576 (AV_RN32A(src + i) - 0x01000101U)) &
2583 #endif /* HAVE_FAST_64BIT */
2585 for (i = 0; i + 1 < length; i += 2) {
2588 if (i > 0 && src[i - 1] == 0)
2592 #endif /* HAVE_FAST_UNALIGNED */
2594 if (i >= length - 1) { // no escaped 0
2600 av_fast_malloc(&nal->rbsp_buffer, &nal->rbsp_buffer_size,
2601 length + FF_INPUT_BUFFER_PADDING_SIZE);
2602 if (!nal->rbsp_buffer)
2603 return AVERROR(ENOMEM);
2605 dst = nal->rbsp_buffer;
2607 memcpy(dst, src, i);
2609 while (si + 2 < length) {
2610 // remove escapes (very rare 1:2^22)
2611 if (src[si + 2] > 3) {
2612 dst[di++] = src[si++];
2613 dst[di++] = src[si++];
2614 } else if (src[si] == 0 && src[si + 1] == 0) {
2615 if (src[si + 2] == 3) { // escape
2621 if (s->skipped_bytes_pos_size < s->skipped_bytes) {
2622 s->skipped_bytes_pos_size *= 2;
2623 av_reallocp_array(&s->skipped_bytes_pos,
2624 s->skipped_bytes_pos_size,
2625 sizeof(*s->skipped_bytes_pos));
2626 if (!s->skipped_bytes_pos)
2627 return AVERROR(ENOMEM);
2629 if (s->skipped_bytes_pos)
2630 s->skipped_bytes_pos[s->skipped_bytes-1] = di - 1;
2632 } else // next start code
2636 dst[di++] = src[si++];
2639 dst[di++] = src[si++];
2642 memset(dst + di, 0, FF_INPUT_BUFFER_PADDING_SIZE);
2649 static int decode_nal_units(HEVCContext *s, const uint8_t *buf, int length)
2651 int i, consumed, ret = 0;
2654 s->last_eos = s->eos;
2657 /* split the input packet into NAL units, so we know the upper bound on the
2658 * number of slices in the frame */
2660 while (length >= 4) {
2662 int extract_length = 0;
2666 for (i = 0; i < s->nal_length_size; i++)
2667 extract_length = (extract_length << 8) | buf[i];
2668 buf += s->nal_length_size;
2669 length -= s->nal_length_size;
2671 if (extract_length > length) {
2672 av_log(s->avctx, AV_LOG_ERROR, "Invalid NAL unit size.\n");
2673 ret = AVERROR_INVALIDDATA;
2677 /* search start code */
2678 while (buf[0] != 0 || buf[1] != 0 || buf[2] != 1) {
2682 av_log(s->avctx, AV_LOG_ERROR, "No start code is found.\n");
2683 ret = AVERROR_INVALIDDATA;
2693 extract_length = length;
2695 if (s->nals_allocated < s->nb_nals + 1) {
2696 int new_size = s->nals_allocated + 1;
2697 HEVCNAL *tmp = av_realloc_array(s->nals, new_size, sizeof(*tmp));
2699 ret = AVERROR(ENOMEM);
2703 memset(s->nals + s->nals_allocated, 0,
2704 (new_size - s->nals_allocated) * sizeof(*tmp));
2705 av_reallocp_array(&s->skipped_bytes_nal, new_size, sizeof(*s->skipped_bytes_nal));
2706 av_reallocp_array(&s->skipped_bytes_pos_size_nal, new_size, sizeof(*s->skipped_bytes_pos_size_nal));
2707 av_reallocp_array(&s->skipped_bytes_pos_nal, new_size, sizeof(*s->skipped_bytes_pos_nal));
2708 s->skipped_bytes_pos_size_nal[s->nals_allocated] = 1024; // initial buffer size
2709 s->skipped_bytes_pos_nal[s->nals_allocated] = av_malloc_array(s->skipped_bytes_pos_size_nal[s->nals_allocated], sizeof(*s->skipped_bytes_pos));
2710 s->nals_allocated = new_size;
2712 s->skipped_bytes_pos_size = s->skipped_bytes_pos_size_nal[s->nb_nals];
2713 s->skipped_bytes_pos = s->skipped_bytes_pos_nal[s->nb_nals];
2714 nal = &s->nals[s->nb_nals];
2716 consumed = ff_hevc_extract_rbsp(s, buf, extract_length, nal);
2718 s->skipped_bytes_nal[s->nb_nals] = s->skipped_bytes;
2719 s->skipped_bytes_pos_size_nal[s->nb_nals] = s->skipped_bytes_pos_size;
2720 s->skipped_bytes_pos_nal[s->nb_nals++] = s->skipped_bytes_pos;
2728 ret = init_get_bits8(&s->HEVClc->gb, nal->data, nal->size);
2733 if (s->nal_unit_type == NAL_EOB_NUT ||
2734 s->nal_unit_type == NAL_EOS_NUT)
2741 /* parse the NAL units */
2742 for (i = 0; i < s->nb_nals; i++) {
2744 s->skipped_bytes = s->skipped_bytes_nal[i];
2745 s->skipped_bytes_pos = s->skipped_bytes_pos_nal[i];
2747 ret = decode_nal_unit(s, s->nals[i].data, s->nals[i].size);
2749 av_log(s->avctx, AV_LOG_WARNING,
2750 "Error parsing NAL unit #%d.\n", i);
2756 if (s->ref && s->threads_type == FF_THREAD_FRAME)
2757 ff_thread_report_progress(&s->ref->tf, INT_MAX, 0);
2762 static void print_md5(void *log_ctx, int level, uint8_t md5[16])
2765 for (i = 0; i < 16; i++)
2766 av_log(log_ctx, level, "%02"PRIx8, md5[i]);
2769 static int verify_md5(HEVCContext *s, AVFrame *frame)
2771 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
2776 return AVERROR(EINVAL);
2778 pixel_shift = desc->comp[0].depth_minus1 > 7;
2780 av_log(s->avctx, AV_LOG_DEBUG, "Verifying checksum for frame with POC %d: ",
2783 /* the checksums are LE, so we have to byteswap for >8bpp formats
2786 if (pixel_shift && !s->checksum_buf) {
2787 av_fast_malloc(&s->checksum_buf, &s->checksum_buf_size,
2788 FFMAX3(frame->linesize[0], frame->linesize[1],
2789 frame->linesize[2]));
2790 if (!s->checksum_buf)
2791 return AVERROR(ENOMEM);
2795 for (i = 0; frame->data[i]; i++) {
2796 int width = s->avctx->coded_width;
2797 int height = s->avctx->coded_height;
2798 int w = (i == 1 || i == 2) ? (width >> desc->log2_chroma_w) : width;
2799 int h = (i == 1 || i == 2) ? (height >> desc->log2_chroma_h) : height;
2802 av_md5_init(s->md5_ctx);
2803 for (j = 0; j < h; j++) {
2804 const uint8_t *src = frame->data[i] + j * frame->linesize[i];
2807 s->bdsp.bswap16_buf((uint16_t *) s->checksum_buf,
2808 (const uint16_t *) src, w);
2809 src = s->checksum_buf;
2812 av_md5_update(s->md5_ctx, src, w << pixel_shift);
2814 av_md5_final(s->md5_ctx, md5);
2816 if (!memcmp(md5, s->md5[i], 16)) {
2817 av_log (s->avctx, AV_LOG_DEBUG, "plane %d - correct ", i);
2818 print_md5(s->avctx, AV_LOG_DEBUG, md5);
2819 av_log (s->avctx, AV_LOG_DEBUG, "; ");
2821 av_log (s->avctx, AV_LOG_ERROR, "mismatching checksum of plane %d - ", i);
2822 print_md5(s->avctx, AV_LOG_ERROR, md5);
2823 av_log (s->avctx, AV_LOG_ERROR, " != ");
2824 print_md5(s->avctx, AV_LOG_ERROR, s->md5[i]);
2825 av_log (s->avctx, AV_LOG_ERROR, "\n");
2826 return AVERROR_INVALIDDATA;
2830 av_log(s->avctx, AV_LOG_DEBUG, "\n");
2835 static int hevc_decode_frame(AVCodecContext *avctx, void *data, int *got_output,
2839 HEVCContext *s = avctx->priv_data;
2842 ret = ff_hevc_output_frame(s, data, 1);
2851 ret = decode_nal_units(s, avpkt->data, avpkt->size);
2855 /* verify the SEI checksum */
2856 if (avctx->err_recognition & AV_EF_CRCCHECK && s->is_decoded &&
2858 ret = verify_md5(s, s->ref->frame);
2859 if (ret < 0 && avctx->err_recognition & AV_EF_EXPLODE) {
2860 ff_hevc_unref_frame(s, s->ref, ~0);
2866 if (s->is_decoded) {
2867 s->ref->frame->key_frame = IS_IRAP(s);
2868 av_log(avctx, AV_LOG_DEBUG, "Decoded frame with POC %d.\n", s->poc);
2872 if (s->output_frame->buf[0]) {
2873 av_frame_move_ref(data, s->output_frame);
2880 static int hevc_ref_frame(HEVCContext *s, HEVCFrame *dst, HEVCFrame *src)
2884 ret = ff_thread_ref_frame(&dst->tf, &src->tf);
2888 dst->tab_mvf_buf = av_buffer_ref(src->tab_mvf_buf);
2889 if (!dst->tab_mvf_buf)
2891 dst->tab_mvf = src->tab_mvf;
2893 dst->rpl_tab_buf = av_buffer_ref(src->rpl_tab_buf);
2894 if (!dst->rpl_tab_buf)
2896 dst->rpl_tab = src->rpl_tab;
2898 dst->rpl_buf = av_buffer_ref(src->rpl_buf);
2902 dst->poc = src->poc;
2903 dst->ctb_count = src->ctb_count;
2904 dst->window = src->window;
2905 dst->flags = src->flags;
2906 dst->sequence = src->sequence;
2910 ff_hevc_unref_frame(s, dst, ~0);
2911 return AVERROR(ENOMEM);
2914 static av_cold int hevc_decode_free(AVCodecContext *avctx)
2916 HEVCContext *s = avctx->priv_data;
2917 HEVCLocalContext *lc = s->HEVClc;
2922 av_freep(&s->md5_ctx);
2924 for(i=0; i < s->nals_allocated; i++) {
2925 av_freep(&s->skipped_bytes_pos_nal[i]);
2927 av_freep(&s->skipped_bytes_pos_size_nal);
2928 av_freep(&s->skipped_bytes_nal);
2929 av_freep(&s->skipped_bytes_pos_nal);
2931 av_freep(&s->cabac_state);
2933 av_frame_free(&s->tmp_frame);
2934 av_frame_free(&s->output_frame);
2936 for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
2937 ff_hevc_unref_frame(s, &s->DPB[i], ~0);
2938 av_frame_free(&s->DPB[i].frame);
2941 for (i = 0; i < FF_ARRAY_ELEMS(s->vps_list); i++)
2942 av_buffer_unref(&s->vps_list[i]);
2943 for (i = 0; i < FF_ARRAY_ELEMS(s->sps_list); i++)
2944 av_buffer_unref(&s->sps_list[i]);
2945 for (i = 0; i < FF_ARRAY_ELEMS(s->pps_list); i++)
2946 av_buffer_unref(&s->pps_list[i]);
2948 av_freep(&s->sh.entry_point_offset);
2949 av_freep(&s->sh.offset);
2950 av_freep(&s->sh.size);
2952 for (i = 1; i < s->threads_number; i++) {
2953 lc = s->HEVClcList[i];
2955 av_freep(&s->HEVClcList[i]);
2956 av_freep(&s->sList[i]);
2959 if (s->HEVClc == s->HEVClcList[0])
2961 av_freep(&s->HEVClcList[0]);
2963 for (i = 0; i < s->nals_allocated; i++)
2964 av_freep(&s->nals[i].rbsp_buffer);
2966 s->nals_allocated = 0;
2971 static av_cold int hevc_init_context(AVCodecContext *avctx)
2973 HEVCContext *s = avctx->priv_data;
2978 s->HEVClc = av_mallocz(sizeof(HEVCLocalContext));
2981 s->HEVClcList[0] = s->HEVClc;
2984 s->cabac_state = av_malloc(HEVC_CONTEXTS);
2985 if (!s->cabac_state)
2988 s->tmp_frame = av_frame_alloc();
2992 s->output_frame = av_frame_alloc();
2993 if (!s->output_frame)
2996 for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
2997 s->DPB[i].frame = av_frame_alloc();
2998 if (!s->DPB[i].frame)
3000 s->DPB[i].tf.f = s->DPB[i].frame;
3003 s->max_ra = INT_MAX;
3005 s->md5_ctx = av_md5_alloc();
3009 ff_bswapdsp_init(&s->bdsp);
3011 s->context_initialized = 1;
3017 hevc_decode_free(avctx);
3018 return AVERROR(ENOMEM);
3021 static int hevc_update_thread_context(AVCodecContext *dst,
3022 const AVCodecContext *src)
3024 HEVCContext *s = dst->priv_data;
3025 HEVCContext *s0 = src->priv_data;
3028 if (!s->context_initialized) {
3029 ret = hevc_init_context(dst);
3034 for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
3035 ff_hevc_unref_frame(s, &s->DPB[i], ~0);
3036 if (s0->DPB[i].frame->buf[0]) {
3037 ret = hevc_ref_frame(s, &s->DPB[i], &s0->DPB[i]);
3043 for (i = 0; i < FF_ARRAY_ELEMS(s->vps_list); i++) {
3044 av_buffer_unref(&s->vps_list[i]);
3045 if (s0->vps_list[i]) {
3046 s->vps_list[i] = av_buffer_ref(s0->vps_list[i]);
3047 if (!s->vps_list[i])
3048 return AVERROR(ENOMEM);
3052 for (i = 0; i < FF_ARRAY_ELEMS(s->sps_list); i++) {
3053 av_buffer_unref(&s->sps_list[i]);
3054 if (s0->sps_list[i]) {
3055 s->sps_list[i] = av_buffer_ref(s0->sps_list[i]);
3056 if (!s->sps_list[i])
3057 return AVERROR(ENOMEM);
3061 for (i = 0; i < FF_ARRAY_ELEMS(s->pps_list); i++) {
3062 av_buffer_unref(&s->pps_list[i]);
3063 if (s0->pps_list[i]) {
3064 s->pps_list[i] = av_buffer_ref(s0->pps_list[i]);
3065 if (!s->pps_list[i])
3066 return AVERROR(ENOMEM);
3070 if (s->sps != s0->sps)
3071 ret = set_sps(s, s0->sps);
3073 s->seq_decode = s0->seq_decode;
3074 s->seq_output = s0->seq_output;
3075 s->pocTid0 = s0->pocTid0;
3076 s->max_ra = s0->max_ra;
3079 s->is_nalff = s0->is_nalff;
3080 s->nal_length_size = s0->nal_length_size;
3082 s->threads_number = s0->threads_number;
3083 s->threads_type = s0->threads_type;
3086 s->seq_decode = (s->seq_decode + 1) & 0xff;
3087 s->max_ra = INT_MAX;
3093 static int hevc_decode_extradata(HEVCContext *s)
3095 AVCodecContext *avctx = s->avctx;
3099 bytestream2_init(&gb, avctx->extradata, avctx->extradata_size);
3101 if (avctx->extradata_size > 3 &&
3102 (avctx->extradata[0] || avctx->extradata[1] ||
3103 avctx->extradata[2] > 1)) {
3104 /* It seems the extradata is encoded as hvcC format.
3105 * Temporarily, we support configurationVersion==0 until 14496-15 3rd
3106 * is finalized. When finalized, configurationVersion will be 1 and we
3107 * can recognize hvcC by checking if avctx->extradata[0]==1 or not. */
3108 int i, j, num_arrays, nal_len_size;
3112 bytestream2_skip(&gb, 21);
3113 nal_len_size = (bytestream2_get_byte(&gb) & 3) + 1;
3114 num_arrays = bytestream2_get_byte(&gb);
3116 /* nal units in the hvcC always have length coded with 2 bytes,
3117 * so put a fake nal_length_size = 2 while parsing them */
3118 s->nal_length_size = 2;
3120 /* Decode nal units from hvcC. */
3121 for (i = 0; i < num_arrays; i++) {
3122 int type = bytestream2_get_byte(&gb) & 0x3f;
3123 int cnt = bytestream2_get_be16(&gb);
3125 for (j = 0; j < cnt; j++) {
3126 // +2 for the nal size field
3127 int nalsize = bytestream2_peek_be16(&gb) + 2;
3128 if (bytestream2_get_bytes_left(&gb) < nalsize) {
3129 av_log(s->avctx, AV_LOG_ERROR,
3130 "Invalid NAL unit size in extradata.\n");
3131 return AVERROR_INVALIDDATA;
3134 ret = decode_nal_units(s, gb.buffer, nalsize);
3136 av_log(avctx, AV_LOG_ERROR,
3137 "Decoding nal unit %d %d from hvcC failed\n",
3141 bytestream2_skip(&gb, nalsize);
3145 /* Now store right nal length size, that will be used to parse
3147 s->nal_length_size = nal_len_size;
3150 ret = decode_nal_units(s, avctx->extradata, avctx->extradata_size);
3157 static av_cold int hevc_decode_init(AVCodecContext *avctx)
3159 HEVCContext *s = avctx->priv_data;
3162 ff_init_cabac_states();
3164 avctx->internal->allocate_progress = 1;
3166 ret = hevc_init_context(avctx);
3170 s->enable_parallel_tiles = 0;
3171 s->picture_struct = 0;
3173 if(avctx->active_thread_type & FF_THREAD_SLICE)
3174 s->threads_number = avctx->thread_count;
3176 s->threads_number = 1;
3178 if (avctx->extradata_size > 0 && avctx->extradata) {
3179 ret = hevc_decode_extradata(s);
3181 hevc_decode_free(avctx);
3186 if((avctx->active_thread_type & FF_THREAD_FRAME) && avctx->thread_count > 1)
3187 s->threads_type = FF_THREAD_FRAME;
3189 s->threads_type = FF_THREAD_SLICE;
3194 static av_cold int hevc_init_thread_copy(AVCodecContext *avctx)
3196 HEVCContext *s = avctx->priv_data;
3199 memset(s, 0, sizeof(*s));
3201 ret = hevc_init_context(avctx);
3208 static void hevc_decode_flush(AVCodecContext *avctx)
3210 HEVCContext *s = avctx->priv_data;
3211 ff_hevc_flush_dpb(s);
3212 s->max_ra = INT_MAX;
3215 #define OFFSET(x) offsetof(HEVCContext, x)
3216 #define PAR (AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
3218 static const AVProfile profiles[] = {
3219 { FF_PROFILE_HEVC_MAIN, "Main" },
3220 { FF_PROFILE_HEVC_MAIN_10, "Main 10" },
3221 { FF_PROFILE_HEVC_MAIN_STILL_PICTURE, "Main Still Picture" },
3222 { FF_PROFILE_UNKNOWN },
3225 static const AVOption options[] = {
3226 { "apply_defdispwin", "Apply default display window from VUI", OFFSET(apply_defdispwin),
3227 AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, PAR },
3228 { "strict-displaywin", "stricly apply default display window size", OFFSET(apply_defdispwin),
3229 AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, PAR },
3233 static const AVClass hevc_decoder_class = {
3234 .class_name = "HEVC decoder",
3235 .item_name = av_default_item_name,
3237 .version = LIBAVUTIL_VERSION_INT,
3240 AVCodec ff_hevc_decoder = {
3242 .long_name = NULL_IF_CONFIG_SMALL("HEVC (High Efficiency Video Coding)"),
3243 .type = AVMEDIA_TYPE_VIDEO,
3244 .id = AV_CODEC_ID_HEVC,
3245 .priv_data_size = sizeof(HEVCContext),
3246 .priv_class = &hevc_decoder_class,
3247 .init = hevc_decode_init,
3248 .close = hevc_decode_free,
3249 .decode = hevc_decode_frame,
3250 .flush = hevc_decode_flush,
3251 .update_thread_context = hevc_update_thread_context,
3252 .init_thread_copy = hevc_init_thread_copy,
3253 .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY |
3254 CODEC_CAP_SLICE_THREADS | CODEC_CAP_FRAME_THREADS,
3255 .profiles = NULL_IF_CONFIG_SMALL(profiles),