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"
35 #include "bytestream.h"
36 #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(sps->min_cb_height * sps->min_cb_width);
104 if (!s->skip_flag || !s->tab_ct_depth)
107 s->cbf_luma = av_malloc(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(pic_size_in_ctb *
115 sizeof(*s->tab_slice_address));
116 s->qp_y_tab = av_malloc(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(2 * s->bs_width * (s->bs_height + 1));
122 s->vertical_bs = av_mallocz(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->sample_aspect_ratio = sps->vui.sar;
297 s->avctx->has_b_frames = sps->temporal_layer[sps->max_sub_layers - 1].num_reorder_pics;
299 if (sps->vui.video_signal_type_present_flag)
300 s->avctx->color_range = sps->vui.video_full_range_flag ? AVCOL_RANGE_JPEG
303 s->avctx->color_range = AVCOL_RANGE_MPEG;
305 if (sps->vui.colour_description_present_flag) {
306 s->avctx->color_primaries = sps->vui.colour_primaries;
307 s->avctx->color_trc = sps->vui.transfer_characteristic;
308 s->avctx->colorspace = sps->vui.matrix_coeffs;
310 s->avctx->color_primaries = AVCOL_PRI_UNSPECIFIED;
311 s->avctx->color_trc = AVCOL_TRC_UNSPECIFIED;
312 s->avctx->colorspace = AVCOL_SPC_UNSPECIFIED;
315 ff_hevc_pred_init(&s->hpc, sps->bit_depth);
316 ff_hevc_dsp_init (&s->hevcdsp, sps->bit_depth);
317 ff_videodsp_init (&s->vdsp, sps->bit_depth);
319 if (sps->sao_enabled) {
320 av_frame_unref(s->tmp_frame);
321 ret = ff_get_buffer(s->avctx, s->tmp_frame, AV_GET_BUFFER_FLAG_REF);
324 s->frame = s->tmp_frame;
328 s->vps = (HEVCVPS*) s->vps_list[s->sps->vps_id]->data;
330 if (s->vps->vps_timing_info_present_flag) {
331 num = s->vps->vps_num_units_in_tick;
332 den = s->vps->vps_time_scale;
333 } else if (sps->vui.vui_timing_info_present_flag) {
334 num = sps->vui.vui_num_units_in_tick;
335 den = sps->vui.vui_time_scale;
338 if (num != 0 && den != 0)
339 av_reduce(&s->avctx->time_base.num, &s->avctx->time_base.den,
350 static int is_sps_exist(HEVCContext *s, const HEVCSPS* last_sps)
354 for( i = 0; i < MAX_SPS_COUNT; i++)
356 if (last_sps == (HEVCSPS*)s->sps_list[i]->data)
361 static int hls_slice_header(HEVCContext *s)
363 GetBitContext *gb = &s->HEVClc->gb;
364 SliceHeader *sh = &s->sh;
368 sh->first_slice_in_pic_flag = get_bits1(gb);
369 if ((IS_IDR(s) || IS_BLA(s)) && sh->first_slice_in_pic_flag) {
370 s->seq_decode = (s->seq_decode + 1) & 0xff;
373 ff_hevc_clear_refs(s);
375 sh->no_output_of_prior_pics_flag = 0;
377 sh->no_output_of_prior_pics_flag = get_bits1(gb);
378 if (s->nal_unit_type == NAL_CRA_NUT && s->last_eos == 1)
379 sh->no_output_of_prior_pics_flag = 1;
381 sh->pps_id = get_ue_golomb_long(gb);
382 if (sh->pps_id >= MAX_PPS_COUNT || !s->pps_list[sh->pps_id]) {
383 av_log(s->avctx, AV_LOG_ERROR, "PPS id out of range: %d\n", sh->pps_id);
384 return AVERROR_INVALIDDATA;
386 if (!sh->first_slice_in_pic_flag &&
387 s->pps != (HEVCPPS*)s->pps_list[sh->pps_id]->data) {
388 av_log(s->avctx, AV_LOG_ERROR, "PPS changed between slices.\n");
389 return AVERROR_INVALIDDATA;
391 s->pps = (HEVCPPS*)s->pps_list[sh->pps_id]->data;
393 if (s->sps != (HEVCSPS*)s->sps_list[s->pps->sps_id]->data) {
394 const HEVCSPS* last_sps = s->sps;
395 s->sps = (HEVCSPS*)s->sps_list[s->pps->sps_id]->data;
397 if (is_sps_exist(s, last_sps)) {
398 if (s->sps->width != last_sps->width || s->sps->height != last_sps->height ||
399 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)
400 sh->no_output_of_prior_pics_flag = 0;
402 sh->no_output_of_prior_pics_flag = 0;
404 ff_hevc_clear_refs(s);
405 ret = set_sps(s, s->sps);
409 s->seq_decode = (s->seq_decode + 1) & 0xff;
413 s->avctx->profile = s->sps->ptl.general_ptl.profile_idc;
414 s->avctx->level = s->sps->ptl.general_ptl.level_idc;
416 sh->dependent_slice_segment_flag = 0;
417 if (!sh->first_slice_in_pic_flag) {
418 int slice_address_length;
420 if (s->pps->dependent_slice_segments_enabled_flag)
421 sh->dependent_slice_segment_flag = get_bits1(gb);
423 slice_address_length = av_ceil_log2(s->sps->ctb_width *
425 sh->slice_segment_addr = get_bits(gb, slice_address_length);
426 if (sh->slice_segment_addr >= s->sps->ctb_width * s->sps->ctb_height) {
427 av_log(s->avctx, AV_LOG_ERROR,
428 "Invalid slice segment address: %u.\n",
429 sh->slice_segment_addr);
430 return AVERROR_INVALIDDATA;
433 if (!sh->dependent_slice_segment_flag) {
434 sh->slice_addr = sh->slice_segment_addr;
438 sh->slice_segment_addr = sh->slice_addr = 0;
440 s->slice_initialized = 0;
443 if (!sh->dependent_slice_segment_flag) {
444 s->slice_initialized = 0;
446 for (i = 0; i < s->pps->num_extra_slice_header_bits; i++)
447 skip_bits(gb, 1); // slice_reserved_undetermined_flag[]
449 sh->slice_type = get_ue_golomb_long(gb);
450 if (!(sh->slice_type == I_SLICE ||
451 sh->slice_type == P_SLICE ||
452 sh->slice_type == B_SLICE)) {
453 av_log(s->avctx, AV_LOG_ERROR, "Unknown slice type: %d.\n",
455 return AVERROR_INVALIDDATA;
457 if (IS_IRAP(s) && sh->slice_type != I_SLICE) {
458 av_log(s->avctx, AV_LOG_ERROR, "Inter slices in an IRAP frame.\n");
459 return AVERROR_INVALIDDATA;
462 sh->pic_output_flag = 1;
463 if (s->pps->output_flag_present_flag)
464 sh->pic_output_flag = get_bits1(gb);
466 if (s->sps->separate_colour_plane_flag)
467 sh->colour_plane_id = get_bits(gb, 2);
470 int short_term_ref_pic_set_sps_flag, poc;
472 sh->pic_order_cnt_lsb = get_bits(gb, s->sps->log2_max_poc_lsb);
473 poc = ff_hevc_compute_poc(s, sh->pic_order_cnt_lsb);
474 if (!sh->first_slice_in_pic_flag && poc != s->poc) {
475 av_log(s->avctx, AV_LOG_WARNING,
476 "Ignoring POC change between slices: %d -> %d\n", s->poc, poc);
477 if (s->avctx->err_recognition & AV_EF_EXPLODE)
478 return AVERROR_INVALIDDATA;
483 short_term_ref_pic_set_sps_flag = get_bits1(gb);
484 if (!short_term_ref_pic_set_sps_flag) {
485 ret = ff_hevc_decode_short_term_rps(s, &sh->slice_rps, s->sps, 1);
489 sh->short_term_rps = &sh->slice_rps;
491 int numbits, rps_idx;
493 if (!s->sps->nb_st_rps) {
494 av_log(s->avctx, AV_LOG_ERROR, "No ref lists in the SPS.\n");
495 return AVERROR_INVALIDDATA;
498 numbits = av_ceil_log2(s->sps->nb_st_rps);
499 rps_idx = numbits > 0 ? get_bits(gb, numbits) : 0;
500 sh->short_term_rps = &s->sps->st_rps[rps_idx];
503 ret = decode_lt_rps(s, &sh->long_term_rps, gb);
505 av_log(s->avctx, AV_LOG_WARNING, "Invalid long term RPS.\n");
506 if (s->avctx->err_recognition & AV_EF_EXPLODE)
507 return AVERROR_INVALIDDATA;
510 if (s->sps->sps_temporal_mvp_enabled_flag)
511 sh->slice_temporal_mvp_enabled_flag = get_bits1(gb);
513 sh->slice_temporal_mvp_enabled_flag = 0;
515 s->sh.short_term_rps = NULL;
520 if (s->temporal_id == 0 &&
521 s->nal_unit_type != NAL_TRAIL_N &&
522 s->nal_unit_type != NAL_TSA_N &&
523 s->nal_unit_type != NAL_STSA_N &&
524 s->nal_unit_type != NAL_RADL_N &&
525 s->nal_unit_type != NAL_RADL_R &&
526 s->nal_unit_type != NAL_RASL_N &&
527 s->nal_unit_type != NAL_RASL_R)
530 if (s->sps->sao_enabled) {
531 sh->slice_sample_adaptive_offset_flag[0] = get_bits1(gb);
532 sh->slice_sample_adaptive_offset_flag[1] =
533 sh->slice_sample_adaptive_offset_flag[2] = get_bits1(gb);
535 sh->slice_sample_adaptive_offset_flag[0] = 0;
536 sh->slice_sample_adaptive_offset_flag[1] = 0;
537 sh->slice_sample_adaptive_offset_flag[2] = 0;
540 sh->nb_refs[L0] = sh->nb_refs[L1] = 0;
541 if (sh->slice_type == P_SLICE || sh->slice_type == B_SLICE) {
544 sh->nb_refs[L0] = s->pps->num_ref_idx_l0_default_active;
545 if (sh->slice_type == B_SLICE)
546 sh->nb_refs[L1] = s->pps->num_ref_idx_l1_default_active;
548 if (get_bits1(gb)) { // num_ref_idx_active_override_flag
549 sh->nb_refs[L0] = get_ue_golomb_long(gb) + 1;
550 if (sh->slice_type == B_SLICE)
551 sh->nb_refs[L1] = get_ue_golomb_long(gb) + 1;
553 if (sh->nb_refs[L0] > MAX_REFS || sh->nb_refs[L1] > MAX_REFS) {
554 av_log(s->avctx, AV_LOG_ERROR, "Too many refs: %d/%d.\n",
555 sh->nb_refs[L0], sh->nb_refs[L1]);
556 return AVERROR_INVALIDDATA;
559 sh->rpl_modification_flag[0] = 0;
560 sh->rpl_modification_flag[1] = 0;
561 nb_refs = ff_hevc_frame_nb_refs(s);
563 av_log(s->avctx, AV_LOG_ERROR, "Zero refs for a frame with P or B slices.\n");
564 return AVERROR_INVALIDDATA;
567 if (s->pps->lists_modification_present_flag && nb_refs > 1) {
568 sh->rpl_modification_flag[0] = get_bits1(gb);
569 if (sh->rpl_modification_flag[0]) {
570 for (i = 0; i < sh->nb_refs[L0]; i++)
571 sh->list_entry_lx[0][i] = get_bits(gb, av_ceil_log2(nb_refs));
574 if (sh->slice_type == B_SLICE) {
575 sh->rpl_modification_flag[1] = get_bits1(gb);
576 if (sh->rpl_modification_flag[1] == 1)
577 for (i = 0; i < sh->nb_refs[L1]; i++)
578 sh->list_entry_lx[1][i] = get_bits(gb, av_ceil_log2(nb_refs));
582 if (sh->slice_type == B_SLICE)
583 sh->mvd_l1_zero_flag = get_bits1(gb);
585 if (s->pps->cabac_init_present_flag)
586 sh->cabac_init_flag = get_bits1(gb);
588 sh->cabac_init_flag = 0;
590 sh->collocated_ref_idx = 0;
591 if (sh->slice_temporal_mvp_enabled_flag) {
592 sh->collocated_list = L0;
593 if (sh->slice_type == B_SLICE)
594 sh->collocated_list = !get_bits1(gb);
596 if (sh->nb_refs[sh->collocated_list] > 1) {
597 sh->collocated_ref_idx = get_ue_golomb_long(gb);
598 if (sh->collocated_ref_idx >= sh->nb_refs[sh->collocated_list]) {
599 av_log(s->avctx, AV_LOG_ERROR,
600 "Invalid collocated_ref_idx: %d.\n",
601 sh->collocated_ref_idx);
602 return AVERROR_INVALIDDATA;
607 if ((s->pps->weighted_pred_flag && sh->slice_type == P_SLICE) ||
608 (s->pps->weighted_bipred_flag && sh->slice_type == B_SLICE)) {
609 pred_weight_table(s, gb);
612 sh->max_num_merge_cand = 5 - get_ue_golomb_long(gb);
613 if (sh->max_num_merge_cand < 1 || sh->max_num_merge_cand > 5) {
614 av_log(s->avctx, AV_LOG_ERROR,
615 "Invalid number of merging MVP candidates: %d.\n",
616 sh->max_num_merge_cand);
617 return AVERROR_INVALIDDATA;
621 sh->slice_qp_delta = get_se_golomb(gb);
623 if (s->pps->pic_slice_level_chroma_qp_offsets_present_flag) {
624 sh->slice_cb_qp_offset = get_se_golomb(gb);
625 sh->slice_cr_qp_offset = get_se_golomb(gb);
627 sh->slice_cb_qp_offset = 0;
628 sh->slice_cr_qp_offset = 0;
631 if (s->pps->deblocking_filter_control_present_flag) {
632 int deblocking_filter_override_flag = 0;
634 if (s->pps->deblocking_filter_override_enabled_flag)
635 deblocking_filter_override_flag = get_bits1(gb);
637 if (deblocking_filter_override_flag) {
638 sh->disable_deblocking_filter_flag = get_bits1(gb);
639 if (!sh->disable_deblocking_filter_flag) {
640 sh->beta_offset = get_se_golomb(gb) * 2;
641 sh->tc_offset = get_se_golomb(gb) * 2;
644 sh->disable_deblocking_filter_flag = s->pps->disable_dbf;
645 sh->beta_offset = s->pps->beta_offset;
646 sh->tc_offset = s->pps->tc_offset;
649 sh->disable_deblocking_filter_flag = 0;
654 if (s->pps->seq_loop_filter_across_slices_enabled_flag &&
655 (sh->slice_sample_adaptive_offset_flag[0] ||
656 sh->slice_sample_adaptive_offset_flag[1] ||
657 !sh->disable_deblocking_filter_flag)) {
658 sh->slice_loop_filter_across_slices_enabled_flag = get_bits1(gb);
660 sh->slice_loop_filter_across_slices_enabled_flag = s->pps->seq_loop_filter_across_slices_enabled_flag;
662 } else if (!s->slice_initialized) {
663 av_log(s->avctx, AV_LOG_ERROR, "Independent slice segment missing.\n");
664 return AVERROR_INVALIDDATA;
667 sh->num_entry_point_offsets = 0;
668 if (s->pps->tiles_enabled_flag || s->pps->entropy_coding_sync_enabled_flag) {
669 sh->num_entry_point_offsets = get_ue_golomb_long(gb);
670 if (sh->num_entry_point_offsets > 0) {
671 int offset_len = get_ue_golomb_long(gb) + 1;
672 int segments = offset_len >> 4;
673 int rest = (offset_len & 15);
674 av_freep(&sh->entry_point_offset);
675 av_freep(&sh->offset);
677 sh->entry_point_offset = av_malloc(sh->num_entry_point_offsets * sizeof(int));
678 sh->offset = av_malloc(sh->num_entry_point_offsets * sizeof(int));
679 sh->size = av_malloc(sh->num_entry_point_offsets * sizeof(int));
680 if (!sh->entry_point_offset || !sh->offset || !sh->size) {
681 sh->num_entry_point_offsets = 0;
682 av_log(s->avctx, AV_LOG_ERROR, "Failed to allocate memory\n");
683 return AVERROR(ENOMEM);
685 for (i = 0; i < sh->num_entry_point_offsets; i++) {
687 for (j = 0; j < segments; j++) {
689 val += get_bits(gb, 16);
693 val += get_bits(gb, rest);
695 sh->entry_point_offset[i] = val + 1; // +1; // +1 to get the size
697 if (s->threads_number > 1 && (s->pps->num_tile_rows > 1 || s->pps->num_tile_columns > 1)) {
698 s->enable_parallel_tiles = 0; // TODO: you can enable tiles in parallel here
699 s->threads_number = 1;
701 s->enable_parallel_tiles = 0;
703 s->enable_parallel_tiles = 0;
706 if (s->pps->slice_header_extension_present_flag) {
707 unsigned int length = get_ue_golomb_long(gb);
708 for (i = 0; i < length; i++)
709 skip_bits(gb, 8); // slice_header_extension_data_byte
712 // Inferred parameters
713 sh->slice_qp = 26U + s->pps->pic_init_qp_minus26 + sh->slice_qp_delta;
714 if (sh->slice_qp > 51 ||
715 sh->slice_qp < -s->sps->qp_bd_offset) {
716 av_log(s->avctx, AV_LOG_ERROR,
717 "The slice_qp %d is outside the valid range "
720 -s->sps->qp_bd_offset);
721 return AVERROR_INVALIDDATA;
724 sh->slice_ctb_addr_rs = sh->slice_segment_addr;
726 if (!s->sh.slice_ctb_addr_rs && s->sh.dependent_slice_segment_flag) {
727 av_log(s->avctx, AV_LOG_ERROR, "Impossible slice segment.\n");
728 return AVERROR_INVALIDDATA;
731 s->HEVClc->first_qp_group = !s->sh.dependent_slice_segment_flag;
733 if (!s->pps->cu_qp_delta_enabled_flag)
734 s->HEVClc->qp_y = s->sh.slice_qp;
736 s->slice_initialized = 1;
741 #define CTB(tab, x, y) ((tab)[(y) * s->sps->ctb_width + (x)])
743 #define SET_SAO(elem, value) \
745 if (!sao_merge_up_flag && !sao_merge_left_flag) \
747 else if (sao_merge_left_flag) \
748 sao->elem = CTB(s->sao, rx-1, ry).elem; \
749 else if (sao_merge_up_flag) \
750 sao->elem = CTB(s->sao, rx, ry-1).elem; \
755 static void hls_sao_param(HEVCContext *s, int rx, int ry)
757 HEVCLocalContext *lc = s->HEVClc;
758 int sao_merge_left_flag = 0;
759 int sao_merge_up_flag = 0;
760 int shift = s->sps->bit_depth - FFMIN(s->sps->bit_depth, 10);
761 SAOParams *sao = &CTB(s->sao, rx, ry);
764 if (s->sh.slice_sample_adaptive_offset_flag[0] ||
765 s->sh.slice_sample_adaptive_offset_flag[1]) {
767 if (lc->ctb_left_flag)
768 sao_merge_left_flag = ff_hevc_sao_merge_flag_decode(s);
770 if (ry > 0 && !sao_merge_left_flag) {
772 sao_merge_up_flag = ff_hevc_sao_merge_flag_decode(s);
776 for (c_idx = 0; c_idx < 3; c_idx++) {
777 if (!s->sh.slice_sample_adaptive_offset_flag[c_idx]) {
778 sao->type_idx[c_idx] = SAO_NOT_APPLIED;
783 sao->type_idx[2] = sao->type_idx[1];
784 sao->eo_class[2] = sao->eo_class[1];
786 SET_SAO(type_idx[c_idx], ff_hevc_sao_type_idx_decode(s));
789 if (sao->type_idx[c_idx] == SAO_NOT_APPLIED)
792 for (i = 0; i < 4; i++)
793 SET_SAO(offset_abs[c_idx][i], ff_hevc_sao_offset_abs_decode(s));
795 if (sao->type_idx[c_idx] == SAO_BAND) {
796 for (i = 0; i < 4; i++) {
797 if (sao->offset_abs[c_idx][i]) {
798 SET_SAO(offset_sign[c_idx][i],
799 ff_hevc_sao_offset_sign_decode(s));
801 sao->offset_sign[c_idx][i] = 0;
804 SET_SAO(band_position[c_idx], ff_hevc_sao_band_position_decode(s));
805 } else if (c_idx != 2) {
806 SET_SAO(eo_class[c_idx], ff_hevc_sao_eo_class_decode(s));
809 // Inferred parameters
810 sao->offset_val[c_idx][0] = 0;
811 for (i = 0; i < 4; i++) {
812 sao->offset_val[c_idx][i + 1] = sao->offset_abs[c_idx][i] << shift;
813 if (sao->type_idx[c_idx] == SAO_EDGE) {
815 sao->offset_val[c_idx][i + 1] = -sao->offset_val[c_idx][i + 1];
816 } else if (sao->offset_sign[c_idx][i]) {
817 sao->offset_val[c_idx][i + 1] = -sao->offset_val[c_idx][i + 1];
826 static int hls_transform_unit(HEVCContext *s, int x0, int y0,
827 int xBase, int yBase, int cb_xBase, int cb_yBase,
828 int log2_cb_size, int log2_trafo_size,
829 int trafo_depth, int blk_idx)
831 HEVCLocalContext *lc = s->HEVClc;
833 if (lc->cu.pred_mode == MODE_INTRA) {
834 int trafo_size = 1 << log2_trafo_size;
835 ff_hevc_set_neighbour_available(s, x0, y0, trafo_size, trafo_size);
837 s->hpc.intra_pred[log2_trafo_size - 2](s, x0, y0, 0);
838 if (log2_trafo_size > 2) {
839 trafo_size = trafo_size << (s->sps->hshift[1] - 1);
840 ff_hevc_set_neighbour_available(s, x0, y0, trafo_size, trafo_size);
841 s->hpc.intra_pred[log2_trafo_size - 3](s, x0, y0, 1);
842 s->hpc.intra_pred[log2_trafo_size - 3](s, x0, y0, 2);
843 } else if (blk_idx == 3) {
844 trafo_size = trafo_size << s->sps->hshift[1];
845 ff_hevc_set_neighbour_available(s, xBase, yBase,
846 trafo_size, trafo_size);
847 s->hpc.intra_pred[log2_trafo_size - 2](s, xBase, yBase, 1);
848 s->hpc.intra_pred[log2_trafo_size - 2](s, xBase, yBase, 2);
852 if (lc->tt.cbf_luma ||
853 SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth], x0, y0) ||
854 SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth], x0, y0)) {
855 int scan_idx = SCAN_DIAG;
856 int scan_idx_c = SCAN_DIAG;
858 if (s->pps->cu_qp_delta_enabled_flag && !lc->tu.is_cu_qp_delta_coded) {
859 lc->tu.cu_qp_delta = ff_hevc_cu_qp_delta_abs(s);
860 if (lc->tu.cu_qp_delta != 0)
861 if (ff_hevc_cu_qp_delta_sign_flag(s) == 1)
862 lc->tu.cu_qp_delta = -lc->tu.cu_qp_delta;
863 lc->tu.is_cu_qp_delta_coded = 1;
865 if (lc->tu.cu_qp_delta < -(26 + s->sps->qp_bd_offset / 2) ||
866 lc->tu.cu_qp_delta > (25 + s->sps->qp_bd_offset / 2)) {
867 av_log(s->avctx, AV_LOG_ERROR,
868 "The cu_qp_delta %d is outside the valid range "
871 -(26 + s->sps->qp_bd_offset / 2),
872 (25 + s->sps->qp_bd_offset / 2));
873 return AVERROR_INVALIDDATA;
876 ff_hevc_set_qPy(s, x0, y0, cb_xBase, cb_yBase, log2_cb_size);
879 if (lc->cu.pred_mode == MODE_INTRA && log2_trafo_size < 4) {
880 if (lc->tu.cur_intra_pred_mode >= 6 &&
881 lc->tu.cur_intra_pred_mode <= 14) {
882 scan_idx = SCAN_VERT;
883 } else if (lc->tu.cur_intra_pred_mode >= 22 &&
884 lc->tu.cur_intra_pred_mode <= 30) {
885 scan_idx = SCAN_HORIZ;
888 if (lc->pu.intra_pred_mode_c >= 6 &&
889 lc->pu.intra_pred_mode_c <= 14) {
890 scan_idx_c = SCAN_VERT;
891 } else if (lc->pu.intra_pred_mode_c >= 22 &&
892 lc->pu.intra_pred_mode_c <= 30) {
893 scan_idx_c = SCAN_HORIZ;
898 ff_hevc_hls_residual_coding(s, x0, y0, log2_trafo_size, scan_idx, 0);
899 if (log2_trafo_size > 2) {
900 if (SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth], x0, y0))
901 ff_hevc_hls_residual_coding(s, x0, y0, log2_trafo_size - 1, scan_idx_c, 1);
902 if (SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth], x0, y0))
903 ff_hevc_hls_residual_coding(s, x0, y0, log2_trafo_size - 1, scan_idx_c, 2);
904 } else if (blk_idx == 3) {
905 if (SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth], xBase, yBase))
906 ff_hevc_hls_residual_coding(s, xBase, yBase, log2_trafo_size, scan_idx_c, 1);
907 if (SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth], xBase, yBase))
908 ff_hevc_hls_residual_coding(s, xBase, yBase, log2_trafo_size, scan_idx_c, 2);
914 static void set_deblocking_bypass(HEVCContext *s, int x0, int y0, int log2_cb_size)
916 int cb_size = 1 << log2_cb_size;
917 int log2_min_pu_size = s->sps->log2_min_pu_size;
919 int min_pu_width = s->sps->min_pu_width;
920 int x_end = FFMIN(x0 + cb_size, s->sps->width);
921 int y_end = FFMIN(y0 + cb_size, s->sps->height);
924 for (j = (y0 >> log2_min_pu_size); j < (y_end >> log2_min_pu_size); j++)
925 for (i = (x0 >> log2_min_pu_size); i < (x_end >> log2_min_pu_size); i++)
926 s->is_pcm[i + j * min_pu_width] = 2;
929 static int hls_transform_tree(HEVCContext *s, int x0, int y0,
930 int xBase, int yBase, int cb_xBase, int cb_yBase,
931 int log2_cb_size, int log2_trafo_size,
932 int trafo_depth, int blk_idx)
934 HEVCLocalContext *lc = s->HEVClc;
935 uint8_t split_transform_flag;
938 if (trafo_depth > 0 && log2_trafo_size == 2) {
939 SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth], x0, y0) =
940 SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth - 1], xBase, yBase);
941 SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth], x0, y0) =
942 SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth - 1], xBase, yBase);
944 SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth], x0, y0) =
945 SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth], x0, y0) = 0;
948 if (lc->cu.intra_split_flag) {
949 if (trafo_depth == 1)
950 lc->tu.cur_intra_pred_mode = lc->pu.intra_pred_mode[blk_idx];
952 lc->tu.cur_intra_pred_mode = lc->pu.intra_pred_mode[0];
957 lc->tt.inter_split_flag = s->sps->max_transform_hierarchy_depth_inter == 0 &&
958 lc->cu.pred_mode == MODE_INTER &&
959 lc->cu.part_mode != PART_2Nx2N &&
962 if (log2_trafo_size <= s->sps->log2_max_trafo_size &&
963 log2_trafo_size > s->sps->log2_min_tb_size &&
964 trafo_depth < lc->cu.max_trafo_depth &&
965 !(lc->cu.intra_split_flag && trafo_depth == 0)) {
966 split_transform_flag = ff_hevc_split_transform_flag_decode(s, log2_trafo_size);
968 split_transform_flag = log2_trafo_size > s->sps->log2_max_trafo_size ||
969 (lc->cu.intra_split_flag && trafo_depth == 0) ||
970 lc->tt.inter_split_flag;
973 if (log2_trafo_size > 2) {
974 if (trafo_depth == 0 ||
975 SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth - 1], xBase, yBase)) {
976 SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth], x0, y0) =
977 ff_hevc_cbf_cb_cr_decode(s, trafo_depth);
980 if (trafo_depth == 0 ||
981 SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth - 1], xBase, yBase)) {
982 SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth], x0, y0) =
983 ff_hevc_cbf_cb_cr_decode(s, trafo_depth);
987 if (split_transform_flag) {
988 int x1 = x0 + ((1 << log2_trafo_size) >> 1);
989 int y1 = y0 + ((1 << log2_trafo_size) >> 1);
991 ret = hls_transform_tree(s, x0, y0, x0, y0, cb_xBase, cb_yBase,
992 log2_cb_size, log2_trafo_size - 1,
996 ret = hls_transform_tree(s, x1, y0, x0, y0, cb_xBase, cb_yBase,
997 log2_cb_size, log2_trafo_size - 1,
1001 ret = hls_transform_tree(s, x0, y1, x0, y0, cb_xBase, cb_yBase,
1002 log2_cb_size, log2_trafo_size - 1,
1003 trafo_depth + 1, 2);
1006 ret = hls_transform_tree(s, x1, y1, x0, y0, cb_xBase, cb_yBase,
1007 log2_cb_size, log2_trafo_size - 1,
1008 trafo_depth + 1, 3);
1012 int min_tu_size = 1 << s->sps->log2_min_tb_size;
1013 int log2_min_tu_size = s->sps->log2_min_tb_size;
1014 int min_tu_width = s->sps->min_tb_width;
1016 if (lc->cu.pred_mode == MODE_INTRA || trafo_depth != 0 ||
1017 SAMPLE_CBF(lc->tt.cbf_cb[trafo_depth], x0, y0) ||
1018 SAMPLE_CBF(lc->tt.cbf_cr[trafo_depth], x0, y0)) {
1019 lc->tt.cbf_luma = ff_hevc_cbf_luma_decode(s, trafo_depth);
1022 ret = hls_transform_unit(s, x0, y0, xBase, yBase, cb_xBase, cb_yBase,
1023 log2_cb_size, log2_trafo_size, trafo_depth,
1027 // TODO: store cbf_luma somewhere else
1028 if (lc->tt.cbf_luma) {
1030 for (i = 0; i < (1 << log2_trafo_size); i += min_tu_size)
1031 for (j = 0; j < (1 << log2_trafo_size); j += min_tu_size) {
1032 int x_tu = (x0 + j) >> log2_min_tu_size;
1033 int y_tu = (y0 + i) >> log2_min_tu_size;
1034 s->cbf_luma[y_tu * min_tu_width + x_tu] = 1;
1037 if (!s->sh.disable_deblocking_filter_flag) {
1038 ff_hevc_deblocking_boundary_strengths(s, x0, y0, log2_trafo_size);
1039 if (s->pps->transquant_bypass_enable_flag &&
1040 lc->cu.cu_transquant_bypass_flag)
1041 set_deblocking_bypass(s, x0, y0, log2_trafo_size);
1047 static int hls_pcm_sample(HEVCContext *s, int x0, int y0, int log2_cb_size)
1049 //TODO: non-4:2:0 support
1051 int cb_size = 1 << log2_cb_size;
1052 int stride0 = s->frame->linesize[0];
1053 uint8_t *dst0 = &s->frame->data[0][y0 * stride0 + (x0 << s->sps->pixel_shift)];
1054 int stride1 = s->frame->linesize[1];
1055 uint8_t *dst1 = &s->frame->data[1][(y0 >> s->sps->vshift[1]) * stride1 + ((x0 >> s->sps->hshift[1]) << s->sps->pixel_shift)];
1056 int stride2 = s->frame->linesize[2];
1057 uint8_t *dst2 = &s->frame->data[2][(y0 >> s->sps->vshift[2]) * stride2 + ((x0 >> s->sps->hshift[2]) << s->sps->pixel_shift)];
1059 int length = cb_size * cb_size * s->sps->pcm.bit_depth + ((cb_size * cb_size) >> 1) * s->sps->pcm.bit_depth_chroma;
1060 const uint8_t *pcm = skip_bytes(&s->HEVClc->cc, (length + 7) >> 3);
1063 if (!s->sh.disable_deblocking_filter_flag)
1064 ff_hevc_deblocking_boundary_strengths(s, x0, y0, log2_cb_size);
1066 ret = init_get_bits(&gb, pcm, length);
1070 s->hevcdsp.put_pcm(dst0, stride0, cb_size, &gb, s->sps->pcm.bit_depth);
1071 s->hevcdsp.put_pcm(dst1, stride1, cb_size / 2, &gb, s->sps->pcm.bit_depth_chroma);
1072 s->hevcdsp.put_pcm(dst2, stride2, cb_size / 2, &gb, s->sps->pcm.bit_depth_chroma);
1077 * 8.5.3.2.2.1 Luma sample unidirectional interpolation process
1079 * @param s HEVC decoding context
1080 * @param dst target buffer for block data at block position
1081 * @param dststride stride of the dst buffer
1082 * @param ref reference picture buffer at origin (0, 0)
1083 * @param mv motion vector (relative to block position) to get pixel data from
1084 * @param x_off horizontal position of block from origin (0, 0)
1085 * @param y_off vertical position of block from origin (0, 0)
1086 * @param block_w width of block
1087 * @param block_h height of block
1088 * @param luma_weight weighting factor applied to the luma prediction
1089 * @param luma_offset additive offset applied to the luma prediction value
1092 static void luma_mc_uni(HEVCContext *s, uint8_t *dst, ptrdiff_t dststride,
1093 AVFrame *ref, const Mv *mv, int x_off, int y_off,
1094 int block_w, int block_h, int luma_weight, int luma_offset)
1096 HEVCLocalContext *lc = s->HEVClc;
1097 uint8_t *src = ref->data[0];
1098 ptrdiff_t srcstride = ref->linesize[0];
1099 int pic_width = s->sps->width;
1100 int pic_height = s->sps->height;
1103 int weight_flag = (s->sh.slice_type == P_SLICE && s->pps->weighted_pred_flag) ||
1104 (s->sh.slice_type == B_SLICE && s->pps->weighted_bipred_flag);
1105 int idx = ff_hevc_pel_weight[block_w];
1107 x_off += mv->x >> 2;
1108 y_off += mv->y >> 2;
1109 src += y_off * srcstride + (x_off << s->sps->pixel_shift);
1111 if (x_off < QPEL_EXTRA_BEFORE || y_off < QPEL_EXTRA_AFTER ||
1112 x_off >= pic_width - block_w - QPEL_EXTRA_AFTER ||
1113 y_off >= pic_height - block_h - QPEL_EXTRA_AFTER) {
1114 const int edge_emu_stride = EDGE_EMU_BUFFER_STRIDE << s->sps->pixel_shift;
1115 int offset = QPEL_EXTRA_BEFORE * srcstride + (QPEL_EXTRA_BEFORE << s->sps->pixel_shift);
1116 int buf_offset = QPEL_EXTRA_BEFORE * edge_emu_stride + (QPEL_EXTRA_BEFORE << s->sps->pixel_shift);
1118 s->vdsp.emulated_edge_mc(lc->edge_emu_buffer, src - offset,
1119 edge_emu_stride, srcstride,
1120 block_w + QPEL_EXTRA,
1121 block_h + QPEL_EXTRA,
1122 x_off - QPEL_EXTRA_BEFORE, y_off - QPEL_EXTRA_BEFORE,
1123 pic_width, pic_height);
1124 src = lc->edge_emu_buffer + buf_offset;
1125 srcstride = edge_emu_stride;
1129 s->hevcdsp.put_hevc_qpel_uni[idx][!!my][!!mx](dst, dststride, src, srcstride,
1130 block_h, mx, my, block_w);
1132 s->hevcdsp.put_hevc_qpel_uni_w[idx][!!my][!!mx](dst, dststride, src, srcstride,
1133 block_h, s->sh.luma_log2_weight_denom,
1134 luma_weight, luma_offset, mx, my, block_w);
1138 * 8.5.3.2.2.1 Luma sample bidirectional interpolation process
1140 * @param s HEVC decoding context
1141 * @param dst target buffer for block data at block position
1142 * @param dststride stride of the dst buffer
1143 * @param ref0 reference picture0 buffer at origin (0, 0)
1144 * @param mv0 motion vector0 (relative to block position) to get pixel data from
1145 * @param x_off horizontal position of block from origin (0, 0)
1146 * @param y_off vertical position of block from origin (0, 0)
1147 * @param block_w width of block
1148 * @param block_h height of block
1149 * @param ref1 reference picture1 buffer at origin (0, 0)
1150 * @param mv1 motion vector1 (relative to block position) to get pixel data from
1151 * @param current_mv current motion vector structure
1153 static void luma_mc_bi(HEVCContext *s, uint8_t *dst, ptrdiff_t dststride,
1154 AVFrame *ref0, const Mv *mv0, int x_off, int y_off,
1155 int block_w, int block_h, AVFrame *ref1, const Mv *mv1, struct MvField *current_mv)
1157 HEVCLocalContext *lc = s->HEVClc;
1158 DECLARE_ALIGNED(16, int16_t, tmp[MAX_PB_SIZE * MAX_PB_SIZE]);
1159 ptrdiff_t src0stride = ref0->linesize[0];
1160 ptrdiff_t src1stride = ref1->linesize[0];
1161 int pic_width = s->sps->width;
1162 int pic_height = s->sps->height;
1163 int mx0 = mv0->x & 3;
1164 int my0 = mv0->y & 3;
1165 int mx1 = mv1->x & 3;
1166 int my1 = mv1->y & 3;
1167 int weight_flag = (s->sh.slice_type == P_SLICE && s->pps->weighted_pred_flag) ||
1168 (s->sh.slice_type == B_SLICE && s->pps->weighted_bipred_flag);
1169 int x_off0 = x_off + (mv0->x >> 2);
1170 int y_off0 = y_off + (mv0->y >> 2);
1171 int x_off1 = x_off + (mv1->x >> 2);
1172 int y_off1 = y_off + (mv1->y >> 2);
1173 int idx = ff_hevc_pel_weight[block_w];
1175 uint8_t *src0 = ref0->data[0] + y_off0 * src0stride + (int)((unsigned)x_off0 << s->sps->pixel_shift);
1176 uint8_t *src1 = ref1->data[0] + y_off1 * src1stride + (int)((unsigned)x_off1 << s->sps->pixel_shift);
1178 if (x_off0 < QPEL_EXTRA_BEFORE || y_off0 < QPEL_EXTRA_AFTER ||
1179 x_off0 >= pic_width - block_w - QPEL_EXTRA_AFTER ||
1180 y_off0 >= pic_height - block_h - QPEL_EXTRA_AFTER) {
1181 const int edge_emu_stride = EDGE_EMU_BUFFER_STRIDE << s->sps->pixel_shift;
1182 int offset = QPEL_EXTRA_BEFORE * src0stride + (QPEL_EXTRA_BEFORE << s->sps->pixel_shift);
1183 int buf_offset = QPEL_EXTRA_BEFORE * edge_emu_stride + (QPEL_EXTRA_BEFORE << s->sps->pixel_shift);
1185 s->vdsp.emulated_edge_mc(lc->edge_emu_buffer, src0 - offset,
1186 edge_emu_stride, src0stride,
1187 block_w + QPEL_EXTRA,
1188 block_h + QPEL_EXTRA,
1189 x_off0 - QPEL_EXTRA_BEFORE, y_off0 - QPEL_EXTRA_BEFORE,
1190 pic_width, pic_height);
1191 src0 = lc->edge_emu_buffer + buf_offset;
1192 src0stride = edge_emu_stride;
1195 if (x_off1 < QPEL_EXTRA_BEFORE || y_off1 < QPEL_EXTRA_AFTER ||
1196 x_off1 >= pic_width - block_w - QPEL_EXTRA_AFTER ||
1197 y_off1 >= pic_height - block_h - QPEL_EXTRA_AFTER) {
1198 const int edge_emu_stride = EDGE_EMU_BUFFER_STRIDE << s->sps->pixel_shift;
1199 int offset = QPEL_EXTRA_BEFORE * src1stride + (QPEL_EXTRA_BEFORE << s->sps->pixel_shift);
1200 int buf_offset = QPEL_EXTRA_BEFORE * edge_emu_stride + (QPEL_EXTRA_BEFORE << s->sps->pixel_shift);
1202 s->vdsp.emulated_edge_mc(lc->edge_emu_buffer2, src1 - offset,
1203 edge_emu_stride, src1stride,
1204 block_w + QPEL_EXTRA,
1205 block_h + QPEL_EXTRA,
1206 x_off1 - QPEL_EXTRA_BEFORE, y_off1 - QPEL_EXTRA_BEFORE,
1207 pic_width, pic_height);
1208 src1 = lc->edge_emu_buffer2 + buf_offset;
1209 src1stride = edge_emu_stride;
1212 s->hevcdsp.put_hevc_qpel[idx][!!my0][!!mx0](tmp, MAX_PB_SIZE, src0, src0stride,
1213 block_h, mx0, my0, block_w);
1215 s->hevcdsp.put_hevc_qpel_bi[idx][!!my1][!!mx1](dst, dststride, src1, src1stride, tmp, MAX_PB_SIZE,
1216 block_h, mx1, my1, block_w);
1218 s->hevcdsp.put_hevc_qpel_bi_w[idx][!!my1][!!mx1](dst, dststride, src1, src1stride, tmp, MAX_PB_SIZE,
1219 block_h, s->sh.luma_log2_weight_denom,
1220 s->sh.luma_weight_l0[current_mv->ref_idx[0]],
1221 s->sh.luma_weight_l1[current_mv->ref_idx[1]],
1222 s->sh.luma_offset_l0[current_mv->ref_idx[0]],
1223 s->sh.luma_offset_l1[current_mv->ref_idx[1]],
1229 * 8.5.3.2.2.2 Chroma sample uniprediction interpolation process
1231 * @param s HEVC decoding context
1232 * @param dst1 target buffer for block data at block position (U plane)
1233 * @param dst2 target buffer for block data at block position (V plane)
1234 * @param dststride stride of the dst1 and dst2 buffers
1235 * @param ref reference picture buffer at origin (0, 0)
1236 * @param mv motion vector (relative to block position) to get pixel data from
1237 * @param x_off horizontal position of block from origin (0, 0)
1238 * @param y_off vertical position of block from origin (0, 0)
1239 * @param block_w width of block
1240 * @param block_h height of block
1241 * @param chroma_weight weighting factor applied to the chroma prediction
1242 * @param chroma_offset additive offset applied to the chroma prediction value
1245 static void chroma_mc_uni(HEVCContext *s, uint8_t *dst0,
1246 ptrdiff_t dststride, uint8_t *src0, ptrdiff_t srcstride, int reflist,
1247 int x_off, int y_off, int block_w, int block_h, struct MvField *current_mv, int chroma_weight, int chroma_offset)
1249 HEVCLocalContext *lc = s->HEVClc;
1250 int pic_width = s->sps->width >> s->sps->hshift[1];
1251 int pic_height = s->sps->height >> s->sps->vshift[1];
1252 const Mv *mv = ¤t_mv->mv[reflist];
1253 int weight_flag = (s->sh.slice_type == P_SLICE && s->pps->weighted_pred_flag) ||
1254 (s->sh.slice_type == B_SLICE && s->pps->weighted_bipred_flag);
1255 int idx = ff_hevc_pel_weight[block_w];
1256 int hshift = s->sps->hshift[1];
1257 int vshift = s->sps->vshift[1];
1258 intptr_t mx = mv->x & ((1 << (2 + hshift)) - 1);
1259 intptr_t my = mv->y & ((1 << (2 + vshift)) - 1);
1260 intptr_t _mx = mx << (1 - hshift);
1261 intptr_t _my = my << (1 - vshift);
1263 x_off += mv->x >> (2 + hshift);
1264 y_off += mv->y >> (2 + vshift);
1265 src0 += y_off * srcstride + (x_off << s->sps->pixel_shift);
1267 if (x_off < EPEL_EXTRA_BEFORE || y_off < EPEL_EXTRA_AFTER ||
1268 x_off >= pic_width - block_w - EPEL_EXTRA_AFTER ||
1269 y_off >= pic_height - block_h - EPEL_EXTRA_AFTER) {
1270 const int edge_emu_stride = EDGE_EMU_BUFFER_STRIDE << s->sps->pixel_shift;
1271 int offset0 = EPEL_EXTRA_BEFORE * (srcstride + (1 << s->sps->pixel_shift));
1272 int buf_offset0 = EPEL_EXTRA_BEFORE *
1273 (edge_emu_stride + (1 << s->sps->pixel_shift));
1274 s->vdsp.emulated_edge_mc(lc->edge_emu_buffer, src0 - offset0,
1275 edge_emu_stride, srcstride,
1276 block_w + EPEL_EXTRA, block_h + EPEL_EXTRA,
1277 x_off - EPEL_EXTRA_BEFORE,
1278 y_off - EPEL_EXTRA_BEFORE,
1279 pic_width, pic_height);
1281 src0 = lc->edge_emu_buffer + buf_offset0;
1282 srcstride = edge_emu_stride;
1285 s->hevcdsp.put_hevc_epel_uni[idx][!!my][!!mx](dst0, dststride, src0, srcstride,
1286 block_h, _mx, _my, block_w);
1288 s->hevcdsp.put_hevc_epel_uni_w[idx][!!my][!!mx](dst0, dststride, src0, srcstride,
1289 block_h, s->sh.chroma_log2_weight_denom,
1290 chroma_weight, chroma_offset, _mx, _my, block_w);
1294 * 8.5.3.2.2.2 Chroma sample bidirectional interpolation process
1296 * @param s HEVC decoding context
1297 * @param dst target buffer for block data at block position
1298 * @param dststride stride of the dst buffer
1299 * @param ref0 reference picture0 buffer at origin (0, 0)
1300 * @param mv0 motion vector0 (relative to block position) to get pixel data from
1301 * @param x_off horizontal position of block from origin (0, 0)
1302 * @param y_off vertical position of block from origin (0, 0)
1303 * @param block_w width of block
1304 * @param block_h height of block
1305 * @param ref1 reference picture1 buffer at origin (0, 0)
1306 * @param mv1 motion vector1 (relative to block position) to get pixel data from
1307 * @param current_mv current motion vector structure
1308 * @param cidx chroma component(cb, cr)
1310 static void chroma_mc_bi(HEVCContext *s, uint8_t *dst0, ptrdiff_t dststride, AVFrame *ref0, AVFrame *ref1,
1311 int x_off, int y_off, int block_w, int block_h, struct MvField *current_mv, int cidx)
1313 DECLARE_ALIGNED(16, int16_t, tmp [MAX_PB_SIZE * MAX_PB_SIZE]);
1314 int tmpstride = MAX_PB_SIZE;
1315 HEVCLocalContext *lc = s->HEVClc;
1316 uint8_t *src1 = ref0->data[cidx+1];
1317 uint8_t *src2 = ref1->data[cidx+1];
1318 ptrdiff_t src1stride = ref0->linesize[cidx+1];
1319 ptrdiff_t src2stride = ref1->linesize[cidx+1];
1320 int weight_flag = (s->sh.slice_type == P_SLICE && s->pps->weighted_pred_flag) ||
1321 (s->sh.slice_type == B_SLICE && s->pps->weighted_bipred_flag);
1322 int pic_width = s->sps->width >> s->sps->hshift[1];
1323 int pic_height = s->sps->height >> s->sps->vshift[1];
1324 Mv *mv0 = ¤t_mv->mv[0];
1325 Mv *mv1 = ¤t_mv->mv[1];
1326 int hshift = s->sps->hshift[1];
1327 int vshift = s->sps->vshift[1];
1329 intptr_t mx0 = mv0->x & ((1 << (2 + hshift)) - 1);
1330 intptr_t my0 = mv0->y & ((1 << (2 + vshift)) - 1);
1331 intptr_t mx1 = mv1->x & ((1 << (2 + hshift)) - 1);
1332 intptr_t my1 = mv1->y & ((1 << (2 + vshift)) - 1);
1333 intptr_t _mx0 = mx0 << (1 - hshift);
1334 intptr_t _my0 = my0 << (1 - vshift);
1335 intptr_t _mx1 = mx1 << (1 - hshift);
1336 intptr_t _my1 = my1 << (1 - vshift);
1338 int x_off0 = x_off + (mv0->x >> (2 + hshift));
1339 int y_off0 = y_off + (mv0->y >> (2 + vshift));
1340 int x_off1 = x_off + (mv1->x >> (2 + hshift));
1341 int y_off1 = y_off + (mv1->y >> (2 + vshift));
1342 int idx = ff_hevc_pel_weight[block_w];
1343 src1 += y_off0 * src1stride + (int)((unsigned)x_off0 << s->sps->pixel_shift);
1344 src2 += y_off1 * src2stride + (int)((unsigned)x_off1 << s->sps->pixel_shift);
1346 if (x_off0 < EPEL_EXTRA_BEFORE || y_off0 < EPEL_EXTRA_AFTER ||
1347 x_off0 >= pic_width - block_w - EPEL_EXTRA_AFTER ||
1348 y_off0 >= pic_height - block_h - EPEL_EXTRA_AFTER) {
1349 const int edge_emu_stride = EDGE_EMU_BUFFER_STRIDE << s->sps->pixel_shift;
1350 int offset1 = EPEL_EXTRA_BEFORE * (src1stride + (1 << s->sps->pixel_shift));
1351 int buf_offset1 = EPEL_EXTRA_BEFORE *
1352 (edge_emu_stride + (1 << s->sps->pixel_shift));
1354 s->vdsp.emulated_edge_mc(lc->edge_emu_buffer, src1 - offset1,
1355 edge_emu_stride, src1stride,
1356 block_w + EPEL_EXTRA, block_h + EPEL_EXTRA,
1357 x_off0 - EPEL_EXTRA_BEFORE,
1358 y_off0 - EPEL_EXTRA_BEFORE,
1359 pic_width, pic_height);
1361 src1 = lc->edge_emu_buffer + buf_offset1;
1362 src1stride = edge_emu_stride;
1365 if (x_off1 < EPEL_EXTRA_BEFORE || y_off1 < EPEL_EXTRA_AFTER ||
1366 x_off1 >= pic_width - block_w - EPEL_EXTRA_AFTER ||
1367 y_off1 >= pic_height - block_h - EPEL_EXTRA_AFTER) {
1368 const int edge_emu_stride = EDGE_EMU_BUFFER_STRIDE << s->sps->pixel_shift;
1369 int offset1 = EPEL_EXTRA_BEFORE * (src2stride + (1 << s->sps->pixel_shift));
1370 int buf_offset1 = EPEL_EXTRA_BEFORE *
1371 (edge_emu_stride + (1 << s->sps->pixel_shift));
1373 s->vdsp.emulated_edge_mc(lc->edge_emu_buffer2, src2 - offset1,
1374 edge_emu_stride, src2stride,
1375 block_w + EPEL_EXTRA, block_h + EPEL_EXTRA,
1376 x_off1 - EPEL_EXTRA_BEFORE,
1377 y_off1 - EPEL_EXTRA_BEFORE,
1378 pic_width, pic_height);
1380 src2 = lc->edge_emu_buffer2 + buf_offset1;
1381 src2stride = edge_emu_stride;
1384 s->hevcdsp.put_hevc_epel[idx][!!my0][!!mx0](tmp, tmpstride, src1, src1stride,
1385 block_h, _mx0, _my0, block_w);
1387 s->hevcdsp.put_hevc_epel_bi[idx][!!my1][!!mx1](dst0, s->frame->linesize[cidx+1],
1388 src2, src2stride, tmp, tmpstride,
1389 block_h, _mx1, _my1, block_w);
1391 s->hevcdsp.put_hevc_epel_bi_w[idx][!!my1][!!mx1](dst0, s->frame->linesize[cidx+1],
1392 src2, src2stride, tmp, tmpstride,
1394 s->sh.chroma_log2_weight_denom,
1395 s->sh.chroma_weight_l0[current_mv->ref_idx[0]][cidx],
1396 s->sh.chroma_weight_l1[current_mv->ref_idx[1]][cidx],
1397 s->sh.chroma_offset_l0[current_mv->ref_idx[0]][cidx],
1398 s->sh.chroma_offset_l1[current_mv->ref_idx[1]][cidx],
1399 _mx1, _my1, block_w);
1402 static void hevc_await_progress(HEVCContext *s, HEVCFrame *ref,
1403 const Mv *mv, int y0, int height)
1405 int y = (mv->y >> 2) + y0 + height + 9;
1407 if (s->threads_type == FF_THREAD_FRAME )
1408 ff_thread_await_progress(&ref->tf, y, 0);
1411 static void hls_prediction_unit(HEVCContext *s, int x0, int y0,
1413 int log2_cb_size, int partIdx)
1415 #define POS(c_idx, x, y) \
1416 &s->frame->data[c_idx][((y) >> s->sps->vshift[c_idx]) * s->frame->linesize[c_idx] + \
1417 (((x) >> s->sps->hshift[c_idx]) << s->sps->pixel_shift)]
1418 HEVCLocalContext *lc = s->HEVClc;
1420 struct MvField current_mv = {{{ 0 }}};
1422 int min_pu_width = s->sps->min_pu_width;
1424 MvField *tab_mvf = s->ref->tab_mvf;
1425 RefPicList *refPicList = s->ref->refPicList;
1426 HEVCFrame *ref0, *ref1;
1427 uint8_t *dst0 = POS(0, x0, y0);
1428 uint8_t *dst1 = POS(1, x0, y0);
1429 uint8_t *dst2 = POS(2, x0, y0);
1430 int log2_min_cb_size = s->sps->log2_min_cb_size;
1431 int min_cb_width = s->sps->min_cb_width;
1432 int x_cb = x0 >> log2_min_cb_size;
1433 int y_cb = y0 >> log2_min_cb_size;
1439 if (SAMPLE_CTB(s->skip_flag, x_cb, y_cb)) {
1440 if (s->sh.max_num_merge_cand > 1)
1441 merge_idx = ff_hevc_merge_idx_decode(s);
1445 ff_hevc_luma_mv_merge_mode(s, x0, y0,
1448 log2_cb_size, partIdx,
1449 merge_idx, ¤t_mv);
1450 x_pu = x0 >> s->sps->log2_min_pu_size;
1451 y_pu = y0 >> s->sps->log2_min_pu_size;
1453 for (i = 0; i < nPbW >> s->sps->log2_min_pu_size; i++)
1454 for (j = 0; j < nPbH >> s->sps->log2_min_pu_size; j++)
1455 tab_mvf[(y_pu + j) * min_pu_width + x_pu + i] = current_mv;
1456 } else { /* MODE_INTER */
1457 lc->pu.merge_flag = ff_hevc_merge_flag_decode(s);
1458 if (lc->pu.merge_flag) {
1459 if (s->sh.max_num_merge_cand > 1)
1460 merge_idx = ff_hevc_merge_idx_decode(s);
1464 ff_hevc_luma_mv_merge_mode(s, x0, y0, nPbW, nPbH, log2_cb_size,
1465 partIdx, merge_idx, ¤t_mv);
1466 x_pu = x0 >> s->sps->log2_min_pu_size;
1467 y_pu = y0 >> s->sps->log2_min_pu_size;
1469 for (i = 0; i < nPbW >> s->sps->log2_min_pu_size; i++)
1470 for (j = 0; j < nPbH >> s->sps->log2_min_pu_size; j++)
1471 tab_mvf[(y_pu + j) * min_pu_width + x_pu + i] = current_mv;
1473 enum InterPredIdc inter_pred_idc = PRED_L0;
1474 ff_hevc_set_neighbour_available(s, x0, y0, nPbW, nPbH);
1475 current_mv.pred_flag = 0;
1476 if (s->sh.slice_type == B_SLICE)
1477 inter_pred_idc = ff_hevc_inter_pred_idc_decode(s, nPbW, nPbH);
1479 if (inter_pred_idc != PRED_L1) {
1480 if (s->sh.nb_refs[L0]) {
1481 ref_idx[0] = ff_hevc_ref_idx_lx_decode(s, s->sh.nb_refs[L0]);
1482 current_mv.ref_idx[0] = ref_idx[0];
1484 current_mv.pred_flag = PF_L0;
1485 ff_hevc_hls_mvd_coding(s, x0, y0, 0);
1486 mvp_flag[0] = ff_hevc_mvp_lx_flag_decode(s);
1487 ff_hevc_luma_mv_mvp_mode(s, x0, y0, nPbW, nPbH, log2_cb_size,
1488 partIdx, merge_idx, ¤t_mv,
1490 current_mv.mv[0].x += lc->pu.mvd.x;
1491 current_mv.mv[0].y += lc->pu.mvd.y;
1494 if (inter_pred_idc != PRED_L0) {
1495 if (s->sh.nb_refs[L1]) {
1496 ref_idx[1] = ff_hevc_ref_idx_lx_decode(s, s->sh.nb_refs[L1]);
1497 current_mv.ref_idx[1] = ref_idx[1];
1500 if (s->sh.mvd_l1_zero_flag == 1 && inter_pred_idc == PRED_BI) {
1504 ff_hevc_hls_mvd_coding(s, x0, y0, 1);
1507 current_mv.pred_flag += PF_L1;
1508 mvp_flag[1] = ff_hevc_mvp_lx_flag_decode(s);
1509 ff_hevc_luma_mv_mvp_mode(s, x0, y0, nPbW, nPbH, log2_cb_size,
1510 partIdx, merge_idx, ¤t_mv,
1512 current_mv.mv[1].x += lc->pu.mvd.x;
1513 current_mv.mv[1].y += lc->pu.mvd.y;
1516 x_pu = x0 >> s->sps->log2_min_pu_size;
1517 y_pu = y0 >> s->sps->log2_min_pu_size;
1519 for (i = 0; i < nPbW >> s->sps->log2_min_pu_size; i++)
1520 for(j = 0; j < nPbH >> s->sps->log2_min_pu_size; j++)
1521 tab_mvf[(y_pu + j) * min_pu_width + x_pu + i] = current_mv;
1525 if (current_mv.pred_flag & PF_L0) {
1526 ref0 = refPicList[0].ref[current_mv.ref_idx[0]];
1529 hevc_await_progress(s, ref0, ¤t_mv.mv[0], y0, nPbH);
1531 if (current_mv.pred_flag & PF_L1) {
1532 ref1 = refPicList[1].ref[current_mv.ref_idx[1]];
1535 hevc_await_progress(s, ref1, ¤t_mv.mv[1], y0, nPbH);
1538 if (current_mv.pred_flag == PF_L0) {
1539 int x0_c = x0 >> s->sps->hshift[1];
1540 int y0_c = y0 >> s->sps->vshift[1];
1541 int nPbW_c = nPbW >> s->sps->hshift[1];
1542 int nPbH_c = nPbH >> s->sps->vshift[1];
1544 luma_mc_uni(s, dst0, s->frame->linesize[0], ref0->frame,
1545 ¤t_mv.mv[0], x0, y0, nPbW, nPbH,
1546 s->sh.luma_weight_l0[current_mv.ref_idx[0]],
1547 s->sh.luma_offset_l0[current_mv.ref_idx[0]]);
1549 chroma_mc_uni(s, dst1, s->frame->linesize[1], ref0->frame->data[1], ref0->frame->linesize[1],
1550 0, x0_c, y0_c, nPbW_c, nPbH_c, ¤t_mv,
1551 s->sh.chroma_weight_l0[current_mv.ref_idx[0]][0], s->sh.chroma_offset_l0[current_mv.ref_idx[0]][0]);
1552 chroma_mc_uni(s, dst2, s->frame->linesize[2], ref0->frame->data[2], ref0->frame->linesize[2],
1553 0, x0_c, y0_c, nPbW_c, nPbH_c, ¤t_mv,
1554 s->sh.chroma_weight_l0[current_mv.ref_idx[0]][1], s->sh.chroma_offset_l0[current_mv.ref_idx[0]][1]);
1555 } else if (current_mv.pred_flag == PF_L1) {
1556 int x0_c = x0 >> s->sps->hshift[1];
1557 int y0_c = y0 >> s->sps->vshift[1];
1558 int nPbW_c = nPbW >> s->sps->hshift[1];
1559 int nPbH_c = nPbH >> s->sps->vshift[1];
1561 luma_mc_uni(s, dst0, s->frame->linesize[0], ref1->frame,
1562 ¤t_mv.mv[1], x0, y0, nPbW, nPbH,
1563 s->sh.luma_weight_l1[current_mv.ref_idx[1]],
1564 s->sh.luma_offset_l1[current_mv.ref_idx[1]]);
1566 chroma_mc_uni(s, dst1, s->frame->linesize[1], ref1->frame->data[1], ref1->frame->linesize[1],
1567 1, x0_c, y0_c, nPbW_c, nPbH_c, ¤t_mv,
1568 s->sh.chroma_weight_l1[current_mv.ref_idx[1]][0], s->sh.chroma_offset_l1[current_mv.ref_idx[1]][0]);
1570 chroma_mc_uni(s, dst2, s->frame->linesize[2], ref1->frame->data[2], ref1->frame->linesize[2],
1571 1, x0_c, y0_c, nPbW_c, nPbH_c, ¤t_mv,
1572 s->sh.chroma_weight_l1[current_mv.ref_idx[1]][1], s->sh.chroma_offset_l1[current_mv.ref_idx[1]][1]);
1573 } else if (current_mv.pred_flag == PF_BI) {
1574 int x0_c = x0 >> s->sps->hshift[1];
1575 int y0_c = y0 >> s->sps->vshift[1];
1576 int nPbW_c = nPbW >> s->sps->hshift[1];
1577 int nPbH_c = nPbH >> s->sps->vshift[1];
1579 luma_mc_bi(s, dst0, s->frame->linesize[0], ref0->frame,
1580 ¤t_mv.mv[0], x0, y0, nPbW, nPbH,
1581 ref1->frame, ¤t_mv.mv[1], ¤t_mv);
1583 chroma_mc_bi(s, dst1, s->frame->linesize[1], ref0->frame, ref1->frame,
1584 x0_c, y0_c, nPbW_c, nPbH_c, ¤t_mv, 0);
1586 chroma_mc_bi(s, dst2, s->frame->linesize[2], ref0->frame, ref1->frame,
1587 x0_c, y0_c, nPbW_c, nPbH_c, ¤t_mv, 1);
1594 static int luma_intra_pred_mode(HEVCContext *s, int x0, int y0, int pu_size,
1595 int prev_intra_luma_pred_flag)
1597 HEVCLocalContext *lc = s->HEVClc;
1598 int x_pu = x0 >> s->sps->log2_min_pu_size;
1599 int y_pu = y0 >> s->sps->log2_min_pu_size;
1600 int min_pu_width = s->sps->min_pu_width;
1601 int size_in_pus = pu_size >> s->sps->log2_min_pu_size;
1602 int x0b = x0 & ((1 << s->sps->log2_ctb_size) - 1);
1603 int y0b = y0 & ((1 << s->sps->log2_ctb_size) - 1);
1605 int cand_up = (lc->ctb_up_flag || y0b) ?
1606 s->tab_ipm[(y_pu - 1) * min_pu_width + x_pu] : INTRA_DC;
1607 int cand_left = (lc->ctb_left_flag || x0b) ?
1608 s->tab_ipm[y_pu * min_pu_width + x_pu - 1] : INTRA_DC;
1610 int y_ctb = (y0 >> (s->sps->log2_ctb_size)) << (s->sps->log2_ctb_size);
1612 MvField *tab_mvf = s->ref->tab_mvf;
1613 int intra_pred_mode;
1617 // intra_pred_mode prediction does not cross vertical CTB boundaries
1618 if ((y0 - 1) < y_ctb)
1621 if (cand_left == cand_up) {
1622 if (cand_left < 2) {
1623 candidate[0] = INTRA_PLANAR;
1624 candidate[1] = INTRA_DC;
1625 candidate[2] = INTRA_ANGULAR_26;
1627 candidate[0] = cand_left;
1628 candidate[1] = 2 + ((cand_left - 2 - 1 + 32) & 31);
1629 candidate[2] = 2 + ((cand_left - 2 + 1) & 31);
1632 candidate[0] = cand_left;
1633 candidate[1] = cand_up;
1634 if (candidate[0] != INTRA_PLANAR && candidate[1] != INTRA_PLANAR) {
1635 candidate[2] = INTRA_PLANAR;
1636 } else if (candidate[0] != INTRA_DC && candidate[1] != INTRA_DC) {
1637 candidate[2] = INTRA_DC;
1639 candidate[2] = INTRA_ANGULAR_26;
1643 if (prev_intra_luma_pred_flag) {
1644 intra_pred_mode = candidate[lc->pu.mpm_idx];
1646 if (candidate[0] > candidate[1])
1647 FFSWAP(uint8_t, candidate[0], candidate[1]);
1648 if (candidate[0] > candidate[2])
1649 FFSWAP(uint8_t, candidate[0], candidate[2]);
1650 if (candidate[1] > candidate[2])
1651 FFSWAP(uint8_t, candidate[1], candidate[2]);
1653 intra_pred_mode = lc->pu.rem_intra_luma_pred_mode;
1654 for (i = 0; i < 3; i++)
1655 if (intra_pred_mode >= candidate[i])
1659 /* write the intra prediction units into the mv array */
1662 for (i = 0; i < size_in_pus; i++) {
1663 memset(&s->tab_ipm[(y_pu + i) * min_pu_width + x_pu],
1664 intra_pred_mode, size_in_pus);
1666 for (j = 0; j < size_in_pus; j++) {
1667 tab_mvf[(y_pu + j) * min_pu_width + x_pu + i].pred_flag = PF_INTRA;
1671 return intra_pred_mode;
1674 static av_always_inline void set_ct_depth(HEVCContext *s, int x0, int y0,
1675 int log2_cb_size, int ct_depth)
1677 int length = (1 << log2_cb_size) >> s->sps->log2_min_cb_size;
1678 int x_cb = x0 >> s->sps->log2_min_cb_size;
1679 int y_cb = y0 >> s->sps->log2_min_cb_size;
1682 for (y = 0; y < length; y++)
1683 memset(&s->tab_ct_depth[(y_cb + y) * s->sps->min_cb_width + x_cb],
1687 static void intra_prediction_unit(HEVCContext *s, int x0, int y0,
1690 HEVCLocalContext *lc = s->HEVClc;
1691 static const uint8_t intra_chroma_table[4] = { 0, 26, 10, 1 };
1692 uint8_t prev_intra_luma_pred_flag[4];
1693 int split = lc->cu.part_mode == PART_NxN;
1694 int pb_size = (1 << log2_cb_size) >> split;
1695 int side = split + 1;
1699 for (i = 0; i < side; i++)
1700 for (j = 0; j < side; j++)
1701 prev_intra_luma_pred_flag[2 * i + j] = ff_hevc_prev_intra_luma_pred_flag_decode(s);
1703 for (i = 0; i < side; i++) {
1704 for (j = 0; j < side; j++) {
1705 if (prev_intra_luma_pred_flag[2 * i + j])
1706 lc->pu.mpm_idx = ff_hevc_mpm_idx_decode(s);
1708 lc->pu.rem_intra_luma_pred_mode = ff_hevc_rem_intra_luma_pred_mode_decode(s);
1710 lc->pu.intra_pred_mode[2 * i + j] =
1711 luma_intra_pred_mode(s, x0 + pb_size * j, y0 + pb_size * i, pb_size,
1712 prev_intra_luma_pred_flag[2 * i + j]);
1716 chroma_mode = ff_hevc_intra_chroma_pred_mode_decode(s);
1717 if (chroma_mode != 4) {
1718 if (lc->pu.intra_pred_mode[0] == intra_chroma_table[chroma_mode])
1719 lc->pu.intra_pred_mode_c = 34;
1721 lc->pu.intra_pred_mode_c = intra_chroma_table[chroma_mode];
1723 lc->pu.intra_pred_mode_c = lc->pu.intra_pred_mode[0];
1727 static void intra_prediction_unit_default_value(HEVCContext *s,
1731 HEVCLocalContext *lc = s->HEVClc;
1732 int pb_size = 1 << log2_cb_size;
1733 int size_in_pus = pb_size >> s->sps->log2_min_pu_size;
1734 int min_pu_width = s->sps->min_pu_width;
1735 MvField *tab_mvf = s->ref->tab_mvf;
1736 int x_pu = x0 >> s->sps->log2_min_pu_size;
1737 int y_pu = y0 >> s->sps->log2_min_pu_size;
1740 if (size_in_pus == 0)
1742 for (j = 0; j < size_in_pus; j++)
1743 memset(&s->tab_ipm[(y_pu + j) * min_pu_width + x_pu], INTRA_DC, size_in_pus);
1744 if (lc->cu.pred_mode == MODE_INTRA)
1745 for (j = 0; j < size_in_pus; j++)
1746 for (k = 0; k < size_in_pus; k++)
1747 tab_mvf[(y_pu + j) * min_pu_width + x_pu + k].pred_flag = PF_INTRA;
1750 static int hls_coding_unit(HEVCContext *s, int x0, int y0, int log2_cb_size)
1752 int cb_size = 1 << log2_cb_size;
1753 HEVCLocalContext *lc = s->HEVClc;
1754 int log2_min_cb_size = s->sps->log2_min_cb_size;
1755 int length = cb_size >> log2_min_cb_size;
1756 int min_cb_width = s->sps->min_cb_width;
1757 int x_cb = x0 >> log2_min_cb_size;
1758 int y_cb = y0 >> log2_min_cb_size;
1760 int qp_block_mask = (1<<(s->sps->log2_ctb_size - s->pps->diff_cu_qp_delta_depth)) - 1;
1764 lc->cu.rqt_root_cbf = 1;
1765 lc->cu.pred_mode = MODE_INTRA;
1766 lc->cu.part_mode = PART_2Nx2N;
1767 lc->cu.intra_split_flag = 0;
1768 lc->cu.pcm_flag = 0;
1770 SAMPLE_CTB(s->skip_flag, x_cb, y_cb) = 0;
1771 for (x = 0; x < 4; x++)
1772 lc->pu.intra_pred_mode[x] = 1;
1773 if (s->pps->transquant_bypass_enable_flag) {
1774 lc->cu.cu_transquant_bypass_flag = ff_hevc_cu_transquant_bypass_flag_decode(s);
1775 if (lc->cu.cu_transquant_bypass_flag)
1776 set_deblocking_bypass(s, x0, y0, log2_cb_size);
1778 lc->cu.cu_transquant_bypass_flag = 0;
1780 if (s->sh.slice_type != I_SLICE) {
1781 uint8_t skip_flag = ff_hevc_skip_flag_decode(s, x0, y0, x_cb, y_cb);
1783 x = y_cb * min_cb_width + x_cb;
1784 for (y = 0; y < length; y++) {
1785 memset(&s->skip_flag[x], skip_flag, length);
1788 lc->cu.pred_mode = skip_flag ? MODE_SKIP : MODE_INTER;
1791 if (SAMPLE_CTB(s->skip_flag, x_cb, y_cb)) {
1792 hls_prediction_unit(s, x0, y0, cb_size, cb_size, log2_cb_size, 0);
1793 intra_prediction_unit_default_value(s, x0, y0, log2_cb_size);
1795 if (!s->sh.disable_deblocking_filter_flag)
1796 ff_hevc_deblocking_boundary_strengths(s, x0, y0, log2_cb_size);
1798 if (s->sh.slice_type != I_SLICE)
1799 lc->cu.pred_mode = ff_hevc_pred_mode_decode(s);
1800 if (lc->cu.pred_mode != MODE_INTRA ||
1801 log2_cb_size == s->sps->log2_min_cb_size) {
1802 lc->cu.part_mode = ff_hevc_part_mode_decode(s, log2_cb_size);
1803 lc->cu.intra_split_flag = lc->cu.part_mode == PART_NxN &&
1804 lc->cu.pred_mode == MODE_INTRA;
1807 if (lc->cu.pred_mode == MODE_INTRA) {
1808 if (lc->cu.part_mode == PART_2Nx2N && s->sps->pcm_enabled_flag &&
1809 log2_cb_size >= s->sps->pcm.log2_min_pcm_cb_size &&
1810 log2_cb_size <= s->sps->pcm.log2_max_pcm_cb_size) {
1811 lc->cu.pcm_flag = ff_hevc_pcm_flag_decode(s);
1813 if (lc->cu.pcm_flag) {
1814 intra_prediction_unit_default_value(s, x0, y0, log2_cb_size);
1815 ret = hls_pcm_sample(s, x0, y0, log2_cb_size);
1816 if (s->sps->pcm.loop_filter_disable_flag)
1817 set_deblocking_bypass(s, x0, y0, log2_cb_size);
1822 intra_prediction_unit(s, x0, y0, log2_cb_size);
1825 intra_prediction_unit_default_value(s, x0, y0, log2_cb_size);
1826 switch (lc->cu.part_mode) {
1828 hls_prediction_unit(s, x0, y0, cb_size, cb_size, log2_cb_size, 0);
1831 hls_prediction_unit(s, x0, y0, cb_size, cb_size / 2, log2_cb_size, 0);
1832 hls_prediction_unit(s, x0, y0 + cb_size / 2, cb_size, cb_size / 2, log2_cb_size, 1);
1835 hls_prediction_unit(s, x0, y0, cb_size / 2, cb_size, log2_cb_size, 0);
1836 hls_prediction_unit(s, x0 + cb_size / 2, y0, cb_size / 2, cb_size, log2_cb_size, 1);
1839 hls_prediction_unit(s, x0, y0, cb_size, cb_size / 4, log2_cb_size, 0);
1840 hls_prediction_unit(s, x0, y0 + cb_size / 4, cb_size, cb_size * 3 / 4, log2_cb_size, 1);
1843 hls_prediction_unit(s, x0, y0, cb_size, cb_size * 3 / 4, log2_cb_size, 0);
1844 hls_prediction_unit(s, x0, y0 + cb_size * 3 / 4, cb_size, cb_size / 4, log2_cb_size, 1);
1847 hls_prediction_unit(s, x0, y0, cb_size / 4, cb_size, log2_cb_size, 0);
1848 hls_prediction_unit(s, x0 + cb_size / 4, y0, cb_size * 3 / 4, cb_size, log2_cb_size, 1);
1851 hls_prediction_unit(s, x0, y0, cb_size * 3 / 4, cb_size, log2_cb_size, 0);
1852 hls_prediction_unit(s, x0 + cb_size * 3 / 4, y0, cb_size / 4, cb_size, log2_cb_size, 1);
1855 hls_prediction_unit(s, x0, y0, cb_size / 2, cb_size / 2, log2_cb_size, 0);
1856 hls_prediction_unit(s, x0 + cb_size / 2, y0, cb_size / 2, cb_size / 2, log2_cb_size, 1);
1857 hls_prediction_unit(s, x0, y0 + cb_size / 2, cb_size / 2, cb_size / 2, log2_cb_size, 2);
1858 hls_prediction_unit(s, x0 + cb_size / 2, y0 + cb_size / 2, cb_size / 2, cb_size / 2, log2_cb_size, 3);
1863 if (!lc->cu.pcm_flag) {
1864 if (lc->cu.pred_mode != MODE_INTRA &&
1865 !(lc->cu.part_mode == PART_2Nx2N && lc->pu.merge_flag)) {
1866 lc->cu.rqt_root_cbf = ff_hevc_no_residual_syntax_flag_decode(s);
1868 if (lc->cu.rqt_root_cbf) {
1869 lc->cu.max_trafo_depth = lc->cu.pred_mode == MODE_INTRA ?
1870 s->sps->max_transform_hierarchy_depth_intra + lc->cu.intra_split_flag :
1871 s->sps->max_transform_hierarchy_depth_inter;
1872 ret = hls_transform_tree(s, x0, y0, x0, y0, x0, y0,
1874 log2_cb_size, 0, 0);
1878 if (!s->sh.disable_deblocking_filter_flag)
1879 ff_hevc_deblocking_boundary_strengths(s, x0, y0, log2_cb_size);
1884 if (s->pps->cu_qp_delta_enabled_flag && lc->tu.is_cu_qp_delta_coded == 0)
1885 ff_hevc_set_qPy(s, x0, y0, x0, y0, log2_cb_size);
1887 x = y_cb * min_cb_width + x_cb;
1888 for (y = 0; y < length; y++) {
1889 memset(&s->qp_y_tab[x], lc->qp_y, length);
1893 if(((x0 + (1<<log2_cb_size)) & qp_block_mask) == 0 &&
1894 ((y0 + (1<<log2_cb_size)) & qp_block_mask) == 0) {
1895 lc->qPy_pred = lc->qp_y;
1898 set_ct_depth(s, x0, y0, log2_cb_size, lc->ct.depth);
1903 static int hls_coding_quadtree(HEVCContext *s, int x0, int y0,
1904 int log2_cb_size, int cb_depth)
1906 HEVCLocalContext *lc = s->HEVClc;
1907 const int cb_size = 1 << log2_cb_size;
1909 int qp_block_mask = (1<<(s->sps->log2_ctb_size - s->pps->diff_cu_qp_delta_depth)) - 1;
1911 lc->ct.depth = cb_depth;
1912 if (x0 + cb_size <= s->sps->width &&
1913 y0 + cb_size <= s->sps->height &&
1914 log2_cb_size > s->sps->log2_min_cb_size) {
1915 SAMPLE(s->split_cu_flag, x0, y0) =
1916 ff_hevc_split_coding_unit_flag_decode(s, cb_depth, x0, y0);
1918 SAMPLE(s->split_cu_flag, x0, y0) =
1919 (log2_cb_size > s->sps->log2_min_cb_size);
1921 if (s->pps->cu_qp_delta_enabled_flag &&
1922 log2_cb_size >= s->sps->log2_ctb_size - s->pps->diff_cu_qp_delta_depth) {
1923 lc->tu.is_cu_qp_delta_coded = 0;
1924 lc->tu.cu_qp_delta = 0;
1927 if (SAMPLE(s->split_cu_flag, x0, y0)) {
1928 const int cb_size_split = cb_size >> 1;
1929 const int x1 = x0 + cb_size_split;
1930 const int y1 = y0 + cb_size_split;
1934 more_data = hls_coding_quadtree(s, x0, y0, log2_cb_size - 1, cb_depth + 1);
1938 if (more_data && x1 < s->sps->width) {
1939 more_data = hls_coding_quadtree(s, x1, y0, log2_cb_size - 1, cb_depth + 1);
1943 if (more_data && y1 < s->sps->height) {
1944 more_data = hls_coding_quadtree(s, x0, y1, log2_cb_size - 1, cb_depth + 1);
1948 if (more_data && x1 < s->sps->width &&
1949 y1 < s->sps->height) {
1950 more_data = hls_coding_quadtree(s, x1, y1, log2_cb_size - 1, cb_depth + 1);
1955 if(((x0 + (1<<log2_cb_size)) & qp_block_mask) == 0 &&
1956 ((y0 + (1<<log2_cb_size)) & qp_block_mask) == 0)
1957 lc->qPy_pred = lc->qp_y;
1960 return ((x1 + cb_size_split) < s->sps->width ||
1961 (y1 + cb_size_split) < s->sps->height);
1965 ret = hls_coding_unit(s, x0, y0, log2_cb_size);
1968 if ((!((x0 + cb_size) %
1969 (1 << (s->sps->log2_ctb_size))) ||
1970 (x0 + cb_size >= s->sps->width)) &&
1972 (1 << (s->sps->log2_ctb_size))) ||
1973 (y0 + cb_size >= s->sps->height))) {
1974 int end_of_slice_flag = ff_hevc_end_of_slice_flag_decode(s);
1975 return !end_of_slice_flag;
1984 static void hls_decode_neighbour(HEVCContext *s, int x_ctb, int y_ctb,
1987 HEVCLocalContext *lc = s->HEVClc;
1988 int ctb_size = 1 << s->sps->log2_ctb_size;
1989 int ctb_addr_rs = s->pps->ctb_addr_ts_to_rs[ctb_addr_ts];
1990 int ctb_addr_in_slice = ctb_addr_rs - s->sh.slice_addr;
1992 int tile_left_boundary, tile_up_boundary;
1993 int slice_left_boundary, slice_up_boundary;
1995 s->tab_slice_address[ctb_addr_rs] = s->sh.slice_addr;
1997 if (s->pps->entropy_coding_sync_enabled_flag) {
1998 if (x_ctb == 0 && (y_ctb & (ctb_size - 1)) == 0)
1999 lc->first_qp_group = 1;
2000 lc->end_of_tiles_x = s->sps->width;
2001 } else if (s->pps->tiles_enabled_flag) {
2002 if (ctb_addr_ts && s->pps->tile_id[ctb_addr_ts] != s->pps->tile_id[ctb_addr_ts - 1]) {
2003 int idxX = s->pps->col_idxX[x_ctb >> s->sps->log2_ctb_size];
2004 lc->end_of_tiles_x = x_ctb + (s->pps->column_width[idxX] << s->sps->log2_ctb_size);
2005 lc->first_qp_group = 1;
2008 lc->end_of_tiles_x = s->sps->width;
2011 lc->end_of_tiles_y = FFMIN(y_ctb + ctb_size, s->sps->height);
2013 if (s->pps->tiles_enabled_flag) {
2014 tile_left_boundary = x_ctb > 0 &&
2015 s->pps->tile_id[ctb_addr_ts] != s->pps->tile_id[s->pps->ctb_addr_rs_to_ts[ctb_addr_rs-1]];
2016 slice_left_boundary = x_ctb > 0 &&
2017 s->tab_slice_address[ctb_addr_rs] != s->tab_slice_address[ctb_addr_rs - 1];
2018 tile_up_boundary = y_ctb > 0 &&
2019 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]];
2020 slice_up_boundary = y_ctb > 0 &&
2021 s->tab_slice_address[ctb_addr_rs] != s->tab_slice_address[ctb_addr_rs - s->sps->ctb_width];
2023 tile_left_boundary =
2024 tile_up_boundary = 0;
2025 slice_left_boundary = ctb_addr_in_slice <= 0;
2026 slice_up_boundary = ctb_addr_in_slice < s->sps->ctb_width;
2028 lc->slice_or_tiles_left_boundary = slice_left_boundary + (tile_left_boundary << 1);
2029 lc->slice_or_tiles_up_boundary = slice_up_boundary + (tile_up_boundary << 1);
2030 lc->ctb_left_flag = ((x_ctb > 0) && (ctb_addr_in_slice > 0) && !tile_left_boundary);
2031 lc->ctb_up_flag = ((y_ctb > 0) && (ctb_addr_in_slice >= s->sps->ctb_width) && !tile_up_boundary);
2032 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]]));
2033 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]]));
2036 static int hls_decode_entry(AVCodecContext *avctxt, void *isFilterThread)
2038 HEVCContext *s = avctxt->priv_data;
2039 int ctb_size = 1 << s->sps->log2_ctb_size;
2043 int ctb_addr_ts = s->pps->ctb_addr_rs_to_ts[s->sh.slice_ctb_addr_rs];
2045 if (!ctb_addr_ts && s->sh.dependent_slice_segment_flag) {
2046 av_log(s->avctx, AV_LOG_ERROR, "Impossible initial tile.\n");
2047 return AVERROR_INVALIDDATA;
2050 if (s->sh.dependent_slice_segment_flag) {
2051 int prev_rs = s->pps->ctb_addr_ts_to_rs[ctb_addr_ts - 1];
2052 if (s->tab_slice_address[prev_rs] != s->sh.slice_addr) {
2053 av_log(s->avctx, AV_LOG_ERROR, "Previous slice segment missing\n");
2054 return AVERROR_INVALIDDATA;
2058 while (more_data && ctb_addr_ts < s->sps->ctb_size) {
2059 int ctb_addr_rs = s->pps->ctb_addr_ts_to_rs[ctb_addr_ts];
2061 x_ctb = (ctb_addr_rs % ((s->sps->width + ctb_size - 1) >> s->sps->log2_ctb_size)) << s->sps->log2_ctb_size;
2062 y_ctb = (ctb_addr_rs / ((s->sps->width + ctb_size - 1) >> s->sps->log2_ctb_size)) << s->sps->log2_ctb_size;
2063 hls_decode_neighbour(s, x_ctb, y_ctb, ctb_addr_ts);
2065 ff_hevc_cabac_init(s, ctb_addr_ts);
2067 hls_sao_param(s, x_ctb >> s->sps->log2_ctb_size, y_ctb >> s->sps->log2_ctb_size);
2069 s->deblock[ctb_addr_rs].beta_offset = s->sh.beta_offset;
2070 s->deblock[ctb_addr_rs].tc_offset = s->sh.tc_offset;
2071 s->filter_slice_edges[ctb_addr_rs] = s->sh.slice_loop_filter_across_slices_enabled_flag;
2073 more_data = hls_coding_quadtree(s, x_ctb, y_ctb, s->sps->log2_ctb_size, 0);
2074 if (more_data < 0) {
2075 s->tab_slice_address[ctb_addr_rs] = -1;
2081 ff_hevc_save_states(s, ctb_addr_ts);
2082 ff_hevc_hls_filters(s, x_ctb, y_ctb, ctb_size);
2085 if (x_ctb + ctb_size >= s->sps->width &&
2086 y_ctb + ctb_size >= s->sps->height)
2087 ff_hevc_hls_filter(s, x_ctb, y_ctb);
2092 static int hls_slice_data(HEVCContext *s)
2100 s->avctx->execute(s->avctx, hls_decode_entry, arg, ret , 1, sizeof(int));
2103 static int hls_decode_entry_wpp(AVCodecContext *avctxt, void *input_ctb_row, int job, int self_id)
2105 HEVCContext *s1 = avctxt->priv_data, *s;
2106 HEVCLocalContext *lc;
2107 int ctb_size = 1<< s1->sps->log2_ctb_size;
2109 int *ctb_row_p = input_ctb_row;
2110 int ctb_row = ctb_row_p[job];
2111 int ctb_addr_rs = s1->sh.slice_ctb_addr_rs + ctb_row * ((s1->sps->width + ctb_size - 1) >> s1->sps->log2_ctb_size);
2112 int ctb_addr_ts = s1->pps->ctb_addr_rs_to_ts[ctb_addr_rs];
2113 int thread = ctb_row % s1->threads_number;
2116 s = s1->sList[self_id];
2120 ret = init_get_bits8(&lc->gb, s->data + s->sh.offset[ctb_row - 1], s->sh.size[ctb_row - 1]);
2124 ff_init_cabac_decoder(&lc->cc, s->data + s->sh.offset[(ctb_row)-1], s->sh.size[ctb_row - 1]);
2127 while(more_data && ctb_addr_ts < s->sps->ctb_size) {
2128 int x_ctb = (ctb_addr_rs % s->sps->ctb_width) << s->sps->log2_ctb_size;
2129 int y_ctb = (ctb_addr_rs / s->sps->ctb_width) << s->sps->log2_ctb_size;
2131 hls_decode_neighbour(s, x_ctb, y_ctb, ctb_addr_ts);
2133 ff_thread_await_progress2(s->avctx, ctb_row, thread, SHIFT_CTB_WPP);
2135 if (avpriv_atomic_int_get(&s1->wpp_err)){
2136 ff_thread_report_progress2(s->avctx, ctb_row , thread, SHIFT_CTB_WPP);
2140 ff_hevc_cabac_init(s, ctb_addr_ts);
2141 hls_sao_param(s, x_ctb >> s->sps->log2_ctb_size, y_ctb >> s->sps->log2_ctb_size);
2142 more_data = hls_coding_quadtree(s, x_ctb, y_ctb, s->sps->log2_ctb_size, 0);
2144 if (more_data < 0) {
2145 s->tab_slice_address[ctb_addr_rs] = -1;
2151 ff_hevc_save_states(s, ctb_addr_ts);
2152 ff_thread_report_progress2(s->avctx, ctb_row, thread, 1);
2153 ff_hevc_hls_filters(s, x_ctb, y_ctb, ctb_size);
2155 if (!more_data && (x_ctb+ctb_size) < s->sps->width && ctb_row != s->sh.num_entry_point_offsets) {
2156 avpriv_atomic_int_set(&s1->wpp_err, 1);
2157 ff_thread_report_progress2(s->avctx, ctb_row ,thread, SHIFT_CTB_WPP);
2161 if ((x_ctb+ctb_size) >= s->sps->width && (y_ctb+ctb_size) >= s->sps->height ) {
2162 ff_hevc_hls_filter(s, x_ctb, y_ctb);
2163 ff_thread_report_progress2(s->avctx, ctb_row , thread, SHIFT_CTB_WPP);
2166 ctb_addr_rs = s->pps->ctb_addr_ts_to_rs[ctb_addr_ts];
2169 if(x_ctb >= s->sps->width) {
2173 ff_thread_report_progress2(s->avctx, ctb_row ,thread, SHIFT_CTB_WPP);
2178 static int hls_slice_data_wpp(HEVCContext *s, const uint8_t *nal, int length)
2180 HEVCLocalContext *lc = s->HEVClc;
2181 int *ret = av_malloc((s->sh.num_entry_point_offsets + 1) * sizeof(int));
2182 int *arg = av_malloc((s->sh.num_entry_point_offsets + 1) * sizeof(int));
2184 int startheader, cmpt = 0;
2189 ff_alloc_entries(s->avctx, s->sh.num_entry_point_offsets + 1);
2192 for (i = 1; i < s->threads_number; i++) {
2193 s->sList[i] = av_malloc(sizeof(HEVCContext));
2194 memcpy(s->sList[i], s, sizeof(HEVCContext));
2195 s->HEVClcList[i] = av_malloc(sizeof(HEVCLocalContext));
2196 s->sList[i]->HEVClc = s->HEVClcList[i];
2200 offset = (lc->gb.index >> 3);
2202 for (j = 0, cmpt = 0, startheader = offset + s->sh.entry_point_offset[0]; j < s->skipped_bytes; j++) {
2203 if (s->skipped_bytes_pos[j] >= offset && s->skipped_bytes_pos[j] < startheader) {
2209 for (i = 1; i < s->sh.num_entry_point_offsets; i++) {
2210 offset += (s->sh.entry_point_offset[i - 1] - cmpt);
2211 for (j = 0, cmpt = 0, startheader = offset
2212 + s->sh.entry_point_offset[i]; j < s->skipped_bytes; j++) {
2213 if (s->skipped_bytes_pos[j] >= offset && s->skipped_bytes_pos[j] < startheader) {
2218 s->sh.size[i - 1] = s->sh.entry_point_offset[i] - cmpt;
2219 s->sh.offset[i - 1] = offset;
2222 if (s->sh.num_entry_point_offsets != 0) {
2223 offset += s->sh.entry_point_offset[s->sh.num_entry_point_offsets - 1] - cmpt;
2224 s->sh.size[s->sh.num_entry_point_offsets - 1] = length - offset;
2225 s->sh.offset[s->sh.num_entry_point_offsets - 1] = offset;
2230 for (i = 1; i < s->threads_number; i++) {
2231 s->sList[i]->HEVClc->first_qp_group = 1;
2232 s->sList[i]->HEVClc->qp_y = s->sList[0]->HEVClc->qp_y;
2233 memcpy(s->sList[i], s, sizeof(HEVCContext));
2234 s->sList[i]->HEVClc = s->HEVClcList[i];
2237 avpriv_atomic_int_set(&s->wpp_err, 0);
2238 ff_reset_entries(s->avctx);
2240 for (i = 0; i <= s->sh.num_entry_point_offsets; i++) {
2245 if (s->pps->entropy_coding_sync_enabled_flag)
2246 s->avctx->execute2(s->avctx, (void *) hls_decode_entry_wpp, arg, ret, s->sh.num_entry_point_offsets + 1);
2248 for (i = 0; i <= s->sh.num_entry_point_offsets; i++)
2256 * @return AVERROR_INVALIDDATA if the packet is not a valid NAL unit,
2257 * 0 if the unit should be skipped, 1 otherwise
2259 static int hls_nal_unit(HEVCContext *s)
2261 GetBitContext *gb = &s->HEVClc->gb;
2264 if (get_bits1(gb) != 0)
2265 return AVERROR_INVALIDDATA;
2267 s->nal_unit_type = get_bits(gb, 6);
2269 nuh_layer_id = get_bits(gb, 6);
2270 s->temporal_id = get_bits(gb, 3) - 1;
2271 if (s->temporal_id < 0)
2272 return AVERROR_INVALIDDATA;
2274 av_log(s->avctx, AV_LOG_DEBUG,
2275 "nal_unit_type: %d, nuh_layer_id: %dtemporal_id: %d\n",
2276 s->nal_unit_type, nuh_layer_id, s->temporal_id);
2278 return nuh_layer_id == 0;
2281 static void restore_tqb_pixels(HEVCContext *s)
2283 int min_pu_size = 1 << s->sps->log2_min_pu_size;
2286 for (c_idx = 0; c_idx < 3; c_idx++) {
2287 ptrdiff_t stride = s->frame->linesize[c_idx];
2288 int hshift = s->sps->hshift[c_idx];
2289 int vshift = s->sps->vshift[c_idx];
2290 for (y = 0; y < s->sps->min_pu_height; y++) {
2291 for (x = 0; x < s->sps->min_pu_width; x++) {
2292 if (s->is_pcm[y * s->sps->min_pu_width + x]) {
2294 int len = min_pu_size >> hshift;
2295 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)];
2296 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)];
2297 for (n = 0; n < (min_pu_size >> vshift); n++) {
2298 memcpy(dst, src, len);
2308 static int set_side_data(HEVCContext *s)
2310 AVFrame *out = s->ref->frame;
2312 if (s->sei_frame_packing_present &&
2313 s->frame_packing_arrangement_type >= 3 &&
2314 s->frame_packing_arrangement_type <= 5 &&
2315 s->content_interpretation_type > 0 &&
2316 s->content_interpretation_type < 3) {
2317 AVStereo3D *stereo = av_stereo3d_create_side_data(out);
2319 return AVERROR(ENOMEM);
2321 switch (s->frame_packing_arrangement_type) {
2323 if (s->quincunx_subsampling)
2324 stereo->type = AV_STEREO3D_SIDEBYSIDE_QUINCUNX;
2326 stereo->type = AV_STEREO3D_SIDEBYSIDE;
2329 stereo->type = AV_STEREO3D_TOPBOTTOM;
2332 stereo->type = AV_STEREO3D_FRAMESEQUENCE;
2336 if (s->content_interpretation_type == 2)
2337 stereo->flags = AV_STEREO3D_FLAG_INVERT;
2343 static int hevc_frame_start(HEVCContext *s)
2345 HEVCLocalContext *lc = s->HEVClc;
2346 int pic_size_in_ctb = ((s->sps->width >> s->sps->log2_min_cb_size) + 1) *
2347 ((s->sps->height >> s->sps->log2_min_cb_size) + 1);
2351 memset(s->horizontal_bs, 0, 2 * s->bs_width * (s->bs_height + 1));
2352 memset(s->vertical_bs, 0, 2 * s->bs_width * (s->bs_height + 1));
2353 memset(s->cbf_luma, 0, s->sps->min_tb_width * s->sps->min_tb_height);
2354 memset(s->is_pcm, 0, s->sps->min_pu_width * s->sps->min_pu_height);
2355 memset(s->tab_slice_address, -1, pic_size_in_ctb * sizeof(*s->tab_slice_address));
2358 s->first_nal_type = s->nal_unit_type;
2360 if (s->pps->tiles_enabled_flag)
2361 lc->end_of_tiles_x = s->pps->column_width[0] << s->sps->log2_ctb_size;
2363 ret = ff_hevc_set_new_ref(s, s->sps->sao_enabled ? &s->sao_frame : &s->frame,
2368 ret = ff_hevc_frame_rps(s);
2370 av_log(s->avctx, AV_LOG_ERROR, "Error constructing the frame RPS.\n");
2374 ret = set_side_data(s);
2378 cur_frame = s->sps->sao_enabled ? s->sao_frame : s->frame;
2379 cur_frame->pict_type = 3 - s->sh.slice_type;
2381 av_frame_unref(s->output_frame);
2382 ret = ff_hevc_output_frame(s, s->output_frame, 0);
2386 ff_thread_finish_setup(s->avctx);
2391 if (s->ref && s->threads_type == FF_THREAD_FRAME)
2392 ff_thread_report_progress(&s->ref->tf, INT_MAX, 0);
2397 static int decode_nal_unit(HEVCContext *s, const uint8_t *nal, int length)
2399 HEVCLocalContext *lc = s->HEVClc;
2400 GetBitContext *gb = &lc->gb;
2401 int ctb_addr_ts, ret;
2403 ret = init_get_bits8(gb, nal, length);
2407 ret = hls_nal_unit(s);
2409 av_log(s->avctx, AV_LOG_ERROR, "Invalid NAL unit %d, skipping.\n",
2415 switch (s->nal_unit_type) {
2417 ret = ff_hevc_decode_nal_vps(s);
2422 ret = ff_hevc_decode_nal_sps(s);
2427 ret = ff_hevc_decode_nal_pps(s);
2431 case NAL_SEI_PREFIX:
2432 case NAL_SEI_SUFFIX:
2433 ret = ff_hevc_decode_nal_sei(s);
2444 case NAL_BLA_W_RADL:
2446 case NAL_IDR_W_RADL:
2453 ret = hls_slice_header(s);
2457 if (s->max_ra == INT_MAX) {
2458 if (s->nal_unit_type == NAL_CRA_NUT || IS_BLA(s)) {
2462 s->max_ra = INT_MIN;
2466 if ((s->nal_unit_type == NAL_RASL_R || s->nal_unit_type == NAL_RASL_N) &&
2467 s->poc <= s->max_ra) {
2471 if (s->nal_unit_type == NAL_RASL_R && s->poc > s->max_ra)
2472 s->max_ra = INT_MIN;
2475 if (s->sh.first_slice_in_pic_flag) {
2476 ret = hevc_frame_start(s);
2479 } else if (!s->ref) {
2480 av_log(s->avctx, AV_LOG_ERROR, "First slice in a frame missing.\n");
2484 if (s->nal_unit_type != s->first_nal_type) {
2485 av_log(s->avctx, AV_LOG_ERROR,
2486 "Non-matching NAL types of the VCL NALUs: %d %d\n",
2487 s->first_nal_type, s->nal_unit_type);
2488 return AVERROR_INVALIDDATA;
2491 if (!s->sh.dependent_slice_segment_flag &&
2492 s->sh.slice_type != I_SLICE) {
2493 ret = ff_hevc_slice_rpl(s);
2495 av_log(s->avctx, AV_LOG_WARNING,
2496 "Error constructing the reference lists for the current slice.\n");
2501 if (s->threads_number > 1 && s->sh.num_entry_point_offsets > 0)
2502 ctb_addr_ts = hls_slice_data_wpp(s, nal, length);
2504 ctb_addr_ts = hls_slice_data(s);
2505 if (ctb_addr_ts >= (s->sps->ctb_width * s->sps->ctb_height)) {
2507 if ((s->pps->transquant_bypass_enable_flag ||
2508 (s->sps->pcm.loop_filter_disable_flag && s->sps->pcm_enabled_flag)) &&
2509 s->sps->sao_enabled)
2510 restore_tqb_pixels(s);
2513 if (ctb_addr_ts < 0) {
2520 s->seq_decode = (s->seq_decode + 1) & 0xff;
2521 s->max_ra = INT_MAX;
2527 av_log(s->avctx, AV_LOG_INFO,
2528 "Skipping NAL unit %d\n", s->nal_unit_type);
2533 if (s->avctx->err_recognition & AV_EF_EXPLODE)
2538 /* FIXME: This is adapted from ff_h264_decode_nal, avoiding duplication
2539 * between these functions would be nice. */
2540 int ff_hevc_extract_rbsp(HEVCContext *s, const uint8_t *src, int length,
2546 s->skipped_bytes = 0;
2547 #define STARTCODE_TEST \
2548 if (i + 2 < length && src[i + 1] == 0 && src[i + 2] <= 3) { \
2549 if (src[i + 2] != 3) { \
2550 /* startcode, so we must be past the end */ \
2555 #if HAVE_FAST_UNALIGNED
2556 #define FIND_FIRST_ZERO \
2557 if (i > 0 && !src[i]) \
2562 for (i = 0; i + 1 < length; i += 9) {
2563 if (!((~AV_RN64A(src + i) &
2564 (AV_RN64A(src + i) - 0x0100010001000101ULL)) &
2565 0x8000800080008080ULL))
2572 for (i = 0; i + 1 < length; i += 5) {
2573 if (!((~AV_RN32A(src + i) &
2574 (AV_RN32A(src + i) - 0x01000101U)) &
2581 #endif /* HAVE_FAST_64BIT */
2583 for (i = 0; i + 1 < length; i += 2) {
2586 if (i > 0 && src[i - 1] == 0)
2590 #endif /* HAVE_FAST_UNALIGNED */
2592 if (i >= length - 1) { // no escaped 0
2598 av_fast_malloc(&nal->rbsp_buffer, &nal->rbsp_buffer_size,
2599 length + FF_INPUT_BUFFER_PADDING_SIZE);
2600 if (!nal->rbsp_buffer)
2601 return AVERROR(ENOMEM);
2603 dst = nal->rbsp_buffer;
2605 memcpy(dst, src, i);
2607 while (si + 2 < length) {
2608 // remove escapes (very rare 1:2^22)
2609 if (src[si + 2] > 3) {
2610 dst[di++] = src[si++];
2611 dst[di++] = src[si++];
2612 } else if (src[si] == 0 && src[si + 1] == 0) {
2613 if (src[si + 2] == 3) { // escape
2619 if (s->skipped_bytes_pos_size < s->skipped_bytes) {
2620 s->skipped_bytes_pos_size *= 2;
2621 av_reallocp_array(&s->skipped_bytes_pos,
2622 s->skipped_bytes_pos_size,
2623 sizeof(*s->skipped_bytes_pos));
2624 if (!s->skipped_bytes_pos)
2625 return AVERROR(ENOMEM);
2627 if (s->skipped_bytes_pos)
2628 s->skipped_bytes_pos[s->skipped_bytes-1] = di - 1;
2630 } else // next start code
2634 dst[di++] = src[si++];
2637 dst[di++] = src[si++];
2640 memset(dst + di, 0, FF_INPUT_BUFFER_PADDING_SIZE);
2647 static int decode_nal_units(HEVCContext *s, const uint8_t *buf, int length)
2649 int i, consumed, ret = 0;
2652 s->last_eos = s->eos;
2655 /* split the input packet into NAL units, so we know the upper bound on the
2656 * number of slices in the frame */
2658 while (length >= 4) {
2660 int extract_length = 0;
2664 for (i = 0; i < s->nal_length_size; i++)
2665 extract_length = (extract_length << 8) | buf[i];
2666 buf += s->nal_length_size;
2667 length -= s->nal_length_size;
2669 if (extract_length > length) {
2670 av_log(s->avctx, AV_LOG_ERROR, "Invalid NAL unit size.\n");
2671 ret = AVERROR_INVALIDDATA;
2675 /* search start code */
2676 while (buf[0] != 0 || buf[1] != 0 || buf[2] != 1) {
2680 av_log(s->avctx, AV_LOG_ERROR, "No start code is found.\n");
2681 ret = AVERROR_INVALIDDATA;
2691 extract_length = length;
2693 if (s->nals_allocated < s->nb_nals + 1) {
2694 int new_size = s->nals_allocated + 1;
2695 HEVCNAL *tmp = av_realloc_array(s->nals, new_size, sizeof(*tmp));
2697 ret = AVERROR(ENOMEM);
2701 memset(s->nals + s->nals_allocated, 0,
2702 (new_size - s->nals_allocated) * sizeof(*tmp));
2703 av_reallocp_array(&s->skipped_bytes_nal, new_size, sizeof(*s->skipped_bytes_nal));
2704 av_reallocp_array(&s->skipped_bytes_pos_size_nal, new_size, sizeof(*s->skipped_bytes_pos_size_nal));
2705 av_reallocp_array(&s->skipped_bytes_pos_nal, new_size, sizeof(*s->skipped_bytes_pos_nal));
2706 s->skipped_bytes_pos_size_nal[s->nals_allocated] = 1024; // initial buffer size
2707 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));
2708 s->nals_allocated = new_size;
2710 s->skipped_bytes_pos_size = s->skipped_bytes_pos_size_nal[s->nb_nals];
2711 s->skipped_bytes_pos = s->skipped_bytes_pos_nal[s->nb_nals];
2712 nal = &s->nals[s->nb_nals];
2714 consumed = ff_hevc_extract_rbsp(s, buf, extract_length, nal);
2716 s->skipped_bytes_nal[s->nb_nals] = s->skipped_bytes;
2717 s->skipped_bytes_pos_size_nal[s->nb_nals] = s->skipped_bytes_pos_size;
2718 s->skipped_bytes_pos_nal[s->nb_nals++] = s->skipped_bytes_pos;
2726 ret = init_get_bits8(&s->HEVClc->gb, nal->data, nal->size);
2731 if (s->nal_unit_type == NAL_EOB_NUT ||
2732 s->nal_unit_type == NAL_EOS_NUT)
2739 /* parse the NAL units */
2740 for (i = 0; i < s->nb_nals; i++) {
2742 s->skipped_bytes = s->skipped_bytes_nal[i];
2743 s->skipped_bytes_pos = s->skipped_bytes_pos_nal[i];
2745 ret = decode_nal_unit(s, s->nals[i].data, s->nals[i].size);
2747 av_log(s->avctx, AV_LOG_WARNING,
2748 "Error parsing NAL unit #%d.\n", i);
2754 if (s->ref && s->threads_type == FF_THREAD_FRAME)
2755 ff_thread_report_progress(&s->ref->tf, INT_MAX, 0);
2760 static void print_md5(void *log_ctx, int level, uint8_t md5[16])
2763 for (i = 0; i < 16; i++)
2764 av_log(log_ctx, level, "%02"PRIx8, md5[i]);
2767 static int verify_md5(HEVCContext *s, AVFrame *frame)
2769 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
2774 return AVERROR(EINVAL);
2776 pixel_shift = desc->comp[0].depth_minus1 > 7;
2778 av_log(s->avctx, AV_LOG_DEBUG, "Verifying checksum for frame with POC %d: ",
2781 /* the checksums are LE, so we have to byteswap for >8bpp formats
2784 if (pixel_shift && !s->checksum_buf) {
2785 av_fast_malloc(&s->checksum_buf, &s->checksum_buf_size,
2786 FFMAX3(frame->linesize[0], frame->linesize[1],
2787 frame->linesize[2]));
2788 if (!s->checksum_buf)
2789 return AVERROR(ENOMEM);
2793 for (i = 0; frame->data[i]; i++) {
2794 int width = s->avctx->coded_width;
2795 int height = s->avctx->coded_height;
2796 int w = (i == 1 || i == 2) ? (width >> desc->log2_chroma_w) : width;
2797 int h = (i == 1 || i == 2) ? (height >> desc->log2_chroma_h) : height;
2800 av_md5_init(s->md5_ctx);
2801 for (j = 0; j < h; j++) {
2802 const uint8_t *src = frame->data[i] + j * frame->linesize[i];
2805 s->dsp.bswap16_buf((uint16_t*)s->checksum_buf,
2806 (const uint16_t*)src, w);
2807 src = s->checksum_buf;
2810 av_md5_update(s->md5_ctx, src, w << pixel_shift);
2812 av_md5_final(s->md5_ctx, md5);
2814 if (!memcmp(md5, s->md5[i], 16)) {
2815 av_log (s->avctx, AV_LOG_DEBUG, "plane %d - correct ", i);
2816 print_md5(s->avctx, AV_LOG_DEBUG, md5);
2817 av_log (s->avctx, AV_LOG_DEBUG, "; ");
2819 av_log (s->avctx, AV_LOG_ERROR, "mismatching checksum of plane %d - ", i);
2820 print_md5(s->avctx, AV_LOG_ERROR, md5);
2821 av_log (s->avctx, AV_LOG_ERROR, " != ");
2822 print_md5(s->avctx, AV_LOG_ERROR, s->md5[i]);
2823 av_log (s->avctx, AV_LOG_ERROR, "\n");
2824 return AVERROR_INVALIDDATA;
2828 av_log(s->avctx, AV_LOG_DEBUG, "\n");
2833 static int hevc_decode_frame(AVCodecContext *avctx, void *data, int *got_output,
2837 HEVCContext *s = avctx->priv_data;
2840 ret = ff_hevc_output_frame(s, data, 1);
2849 ret = decode_nal_units(s, avpkt->data, avpkt->size);
2853 /* verify the SEI checksum */
2854 if (avctx->err_recognition & AV_EF_CRCCHECK && s->is_decoded &&
2856 ret = verify_md5(s, s->ref->frame);
2857 if (ret < 0 && avctx->err_recognition & AV_EF_EXPLODE) {
2858 ff_hevc_unref_frame(s, s->ref, ~0);
2864 if (s->is_decoded) {
2865 s->ref->frame->key_frame = IS_IRAP(s);
2866 av_log(avctx, AV_LOG_DEBUG, "Decoded frame with POC %d.\n", s->poc);
2870 if (s->output_frame->buf[0]) {
2871 av_frame_move_ref(data, s->output_frame);
2878 static int hevc_ref_frame(HEVCContext *s, HEVCFrame *dst, HEVCFrame *src)
2882 ret = ff_thread_ref_frame(&dst->tf, &src->tf);
2886 dst->tab_mvf_buf = av_buffer_ref(src->tab_mvf_buf);
2887 if (!dst->tab_mvf_buf)
2889 dst->tab_mvf = src->tab_mvf;
2891 dst->rpl_tab_buf = av_buffer_ref(src->rpl_tab_buf);
2892 if (!dst->rpl_tab_buf)
2894 dst->rpl_tab = src->rpl_tab;
2896 dst->rpl_buf = av_buffer_ref(src->rpl_buf);
2900 dst->poc = src->poc;
2901 dst->ctb_count = src->ctb_count;
2902 dst->window = src->window;
2903 dst->flags = src->flags;
2904 dst->sequence = src->sequence;
2908 ff_hevc_unref_frame(s, dst, ~0);
2909 return AVERROR(ENOMEM);
2912 static av_cold int hevc_decode_free(AVCodecContext *avctx)
2914 HEVCContext *s = avctx->priv_data;
2915 HEVCLocalContext *lc = s->HEVClc;
2920 av_freep(&s->md5_ctx);
2922 for(i=0; i < s->nals_allocated; i++) {
2923 av_freep(&s->skipped_bytes_pos_nal[i]);
2925 av_freep(&s->skipped_bytes_pos_size_nal);
2926 av_freep(&s->skipped_bytes_nal);
2927 av_freep(&s->skipped_bytes_pos_nal);
2929 av_freep(&s->cabac_state);
2931 av_frame_free(&s->tmp_frame);
2932 av_frame_free(&s->output_frame);
2934 for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
2935 ff_hevc_unref_frame(s, &s->DPB[i], ~0);
2936 av_frame_free(&s->DPB[i].frame);
2939 for (i = 0; i < FF_ARRAY_ELEMS(s->vps_list); i++)
2940 av_buffer_unref(&s->vps_list[i]);
2941 for (i = 0; i < FF_ARRAY_ELEMS(s->sps_list); i++)
2942 av_buffer_unref(&s->sps_list[i]);
2943 for (i = 0; i < FF_ARRAY_ELEMS(s->pps_list); i++)
2944 av_buffer_unref(&s->pps_list[i]);
2946 av_freep(&s->sh.entry_point_offset);
2947 av_freep(&s->sh.offset);
2948 av_freep(&s->sh.size);
2950 for (i = 1; i < s->threads_number; i++) {
2951 lc = s->HEVClcList[i];
2953 av_freep(&s->HEVClcList[i]);
2954 av_freep(&s->sList[i]);
2957 if (s->HEVClc == s->HEVClcList[0])
2959 av_freep(&s->HEVClcList[0]);
2961 for (i = 0; i < s->nals_allocated; i++)
2962 av_freep(&s->nals[i].rbsp_buffer);
2964 s->nals_allocated = 0;
2969 static av_cold int hevc_init_context(AVCodecContext *avctx)
2971 HEVCContext *s = avctx->priv_data;
2976 s->HEVClc = av_mallocz(sizeof(HEVCLocalContext));
2979 s->HEVClcList[0] = s->HEVClc;
2982 s->cabac_state = av_malloc(HEVC_CONTEXTS);
2983 if (!s->cabac_state)
2986 s->tmp_frame = av_frame_alloc();
2990 s->output_frame = av_frame_alloc();
2991 if (!s->output_frame)
2994 for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
2995 s->DPB[i].frame = av_frame_alloc();
2996 if (!s->DPB[i].frame)
2998 s->DPB[i].tf.f = s->DPB[i].frame;
3001 s->max_ra = INT_MAX;
3003 s->md5_ctx = av_md5_alloc();
3007 ff_dsputil_init(&s->dsp, avctx);
3009 s->context_initialized = 1;
3015 hevc_decode_free(avctx);
3016 return AVERROR(ENOMEM);
3019 static int hevc_update_thread_context(AVCodecContext *dst,
3020 const AVCodecContext *src)
3022 HEVCContext *s = dst->priv_data;
3023 HEVCContext *s0 = src->priv_data;
3026 if (!s->context_initialized) {
3027 ret = hevc_init_context(dst);
3032 for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
3033 ff_hevc_unref_frame(s, &s->DPB[i], ~0);
3034 if (s0->DPB[i].frame->buf[0]) {
3035 ret = hevc_ref_frame(s, &s->DPB[i], &s0->DPB[i]);
3041 for (i = 0; i < FF_ARRAY_ELEMS(s->vps_list); i++) {
3042 av_buffer_unref(&s->vps_list[i]);
3043 if (s0->vps_list[i]) {
3044 s->vps_list[i] = av_buffer_ref(s0->vps_list[i]);
3045 if (!s->vps_list[i])
3046 return AVERROR(ENOMEM);
3050 for (i = 0; i < FF_ARRAY_ELEMS(s->sps_list); i++) {
3051 av_buffer_unref(&s->sps_list[i]);
3052 if (s0->sps_list[i]) {
3053 s->sps_list[i] = av_buffer_ref(s0->sps_list[i]);
3054 if (!s->sps_list[i])
3055 return AVERROR(ENOMEM);
3059 for (i = 0; i < FF_ARRAY_ELEMS(s->pps_list); i++) {
3060 av_buffer_unref(&s->pps_list[i]);
3061 if (s0->pps_list[i]) {
3062 s->pps_list[i] = av_buffer_ref(s0->pps_list[i]);
3063 if (!s->pps_list[i])
3064 return AVERROR(ENOMEM);
3068 if (s->sps != s0->sps)
3069 ret = set_sps(s, s0->sps);
3071 s->seq_decode = s0->seq_decode;
3072 s->seq_output = s0->seq_output;
3073 s->pocTid0 = s0->pocTid0;
3074 s->max_ra = s0->max_ra;
3077 s->is_nalff = s0->is_nalff;
3078 s->nal_length_size = s0->nal_length_size;
3080 s->threads_number = s0->threads_number;
3081 s->threads_type = s0->threads_type;
3084 s->seq_decode = (s->seq_decode + 1) & 0xff;
3085 s->max_ra = INT_MAX;
3091 static int hevc_decode_extradata(HEVCContext *s)
3093 AVCodecContext *avctx = s->avctx;
3097 bytestream2_init(&gb, avctx->extradata, avctx->extradata_size);
3099 if (avctx->extradata_size > 3 &&
3100 (avctx->extradata[0] || avctx->extradata[1] ||
3101 avctx->extradata[2] > 1)) {
3102 /* It seems the extradata is encoded as hvcC format.
3103 * Temporarily, we support configurationVersion==0 until 14496-15 3rd
3104 * is finalized. When finalized, configurationVersion will be 1 and we
3105 * can recognize hvcC by checking if avctx->extradata[0]==1 or not. */
3106 int i, j, num_arrays, nal_len_size;
3110 bytestream2_skip(&gb, 21);
3111 nal_len_size = (bytestream2_get_byte(&gb) & 3) + 1;
3112 num_arrays = bytestream2_get_byte(&gb);
3114 /* nal units in the hvcC always have length coded with 2 bytes,
3115 * so put a fake nal_length_size = 2 while parsing them */
3116 s->nal_length_size = 2;
3118 /* Decode nal units from hvcC. */
3119 for (i = 0; i < num_arrays; i++) {
3120 int type = bytestream2_get_byte(&gb) & 0x3f;
3121 int cnt = bytestream2_get_be16(&gb);
3123 for (j = 0; j < cnt; j++) {
3124 // +2 for the nal size field
3125 int nalsize = bytestream2_peek_be16(&gb) + 2;
3126 if (bytestream2_get_bytes_left(&gb) < nalsize) {
3127 av_log(s->avctx, AV_LOG_ERROR,
3128 "Invalid NAL unit size in extradata.\n");
3129 return AVERROR_INVALIDDATA;
3132 ret = decode_nal_units(s, gb.buffer, nalsize);
3134 av_log(avctx, AV_LOG_ERROR,
3135 "Decoding nal unit %d %d from hvcC failed\n",
3139 bytestream2_skip(&gb, nalsize);
3143 /* Now store right nal length size, that will be used to parse
3145 s->nal_length_size = nal_len_size;
3148 ret = decode_nal_units(s, avctx->extradata, avctx->extradata_size);
3155 static av_cold int hevc_decode_init(AVCodecContext *avctx)
3157 HEVCContext *s = avctx->priv_data;
3160 ff_init_cabac_states();
3162 avctx->internal->allocate_progress = 1;
3164 ret = hevc_init_context(avctx);
3168 s->enable_parallel_tiles = 0;
3169 s->picture_struct = 0;
3171 if(avctx->active_thread_type & FF_THREAD_SLICE)
3172 s->threads_number = avctx->thread_count;
3174 s->threads_number = 1;
3176 if (avctx->extradata_size > 0 && avctx->extradata) {
3177 ret = hevc_decode_extradata(s);
3179 hevc_decode_free(avctx);
3184 if((avctx->active_thread_type & FF_THREAD_FRAME) && avctx->thread_count > 1)
3185 s->threads_type = FF_THREAD_FRAME;
3187 s->threads_type = FF_THREAD_SLICE;
3192 static av_cold int hevc_init_thread_copy(AVCodecContext *avctx)
3194 HEVCContext *s = avctx->priv_data;
3197 memset(s, 0, sizeof(*s));
3199 ret = hevc_init_context(avctx);
3206 static void hevc_decode_flush(AVCodecContext *avctx)
3208 HEVCContext *s = avctx->priv_data;
3209 ff_hevc_flush_dpb(s);
3210 s->max_ra = INT_MAX;
3213 #define OFFSET(x) offsetof(HEVCContext, x)
3214 #define PAR (AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
3216 static const AVProfile profiles[] = {
3217 { FF_PROFILE_HEVC_MAIN, "Main" },
3218 { FF_PROFILE_HEVC_MAIN_10, "Main 10" },
3219 { FF_PROFILE_HEVC_MAIN_STILL_PICTURE, "Main Still Picture" },
3220 { FF_PROFILE_UNKNOWN },
3223 static const AVOption options[] = {
3224 { "apply_defdispwin", "Apply default display window from VUI", OFFSET(apply_defdispwin),
3225 AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, PAR },
3226 { "strict-displaywin", "stricly apply default display window size", OFFSET(apply_defdispwin),
3227 AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, PAR },
3231 static const AVClass hevc_decoder_class = {
3232 .class_name = "HEVC decoder",
3233 .item_name = av_default_item_name,
3235 .version = LIBAVUTIL_VERSION_INT,
3238 AVCodec ff_hevc_decoder = {
3240 .long_name = NULL_IF_CONFIG_SMALL("HEVC (High Efficiency Video Coding)"),
3241 .type = AVMEDIA_TYPE_VIDEO,
3242 .id = AV_CODEC_ID_HEVC,
3243 .priv_data_size = sizeof(HEVCContext),
3244 .priv_class = &hevc_decoder_class,
3245 .init = hevc_decode_init,
3246 .close = hevc_decode_free,
3247 .decode = hevc_decode_frame,
3248 .flush = hevc_decode_flush,
3249 .update_thread_context = hevc_update_thread_context,
3250 .init_thread_copy = hevc_init_thread_copy,
3251 .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY |
3252 CODEC_CAP_SLICE_THREADS | CODEC_CAP_FRAME_THREADS,
3253 .profiles = NULL_IF_CONFIG_SMALL(profiles),