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 Libav.
11 * Libav 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 * Libav 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 Libav; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
26 #include "libavutil/attributes.h"
27 #include "libavutil/common.h"
28 #include "libavutil/display.h"
29 #include "libavutil/internal.h"
30 #include "libavutil/md5.h"
31 #include "libavutil/opt.h"
32 #include "libavutil/pixdesc.h"
33 #include "libavutil/stereo3d.h"
36 #include "bytestream.h"
37 #include "cabac_functions.h"
41 const uint8_t ff_hevc_qpel_extra_before[4] = { 0, 3, 3, 2 };
42 const uint8_t ff_hevc_qpel_extra_after[4] = { 0, 3, 4, 4 };
43 const uint8_t ff_hevc_qpel_extra[4] = { 0, 6, 7, 6 };
45 static const uint8_t scan_1x1[1] = { 0 };
47 static const uint8_t horiz_scan2x2_x[4] = { 0, 1, 0, 1 };
49 static const uint8_t horiz_scan2x2_y[4] = { 0, 0, 1, 1 };
51 static const uint8_t horiz_scan4x4_x[16] = {
58 static const uint8_t horiz_scan4x4_y[16] = {
65 static const uint8_t horiz_scan8x8_inv[8][8] = {
66 { 0, 1, 2, 3, 16, 17, 18, 19, },
67 { 4, 5, 6, 7, 20, 21, 22, 23, },
68 { 8, 9, 10, 11, 24, 25, 26, 27, },
69 { 12, 13, 14, 15, 28, 29, 30, 31, },
70 { 32, 33, 34, 35, 48, 49, 50, 51, },
71 { 36, 37, 38, 39, 52, 53, 54, 55, },
72 { 40, 41, 42, 43, 56, 57, 58, 59, },
73 { 44, 45, 46, 47, 60, 61, 62, 63, },
76 static const uint8_t diag_scan2x2_x[4] = { 0, 0, 1, 1 };
78 static const uint8_t diag_scan2x2_y[4] = { 0, 1, 0, 1 };
80 static const uint8_t diag_scan2x2_inv[2][2] = {
85 const uint8_t ff_hevc_diag_scan4x4_x[16] = {
92 const uint8_t ff_hevc_diag_scan4x4_y[16] = {
99 static const uint8_t diag_scan4x4_inv[4][4] = {
106 const uint8_t ff_hevc_diag_scan8x8_x[64] = {
125 const uint8_t ff_hevc_diag_scan8x8_y[64] = {
144 static const uint8_t diag_scan8x8_inv[8][8] = {
145 { 0, 2, 5, 9, 14, 20, 27, 35, },
146 { 1, 4, 8, 13, 19, 26, 34, 42, },
147 { 3, 7, 12, 18, 25, 33, 41, 48, },
148 { 6, 11, 17, 24, 32, 40, 47, 53, },
149 { 10, 16, 23, 31, 39, 46, 52, 57, },
150 { 15, 22, 30, 38, 45, 51, 56, 60, },
151 { 21, 29, 37, 44, 50, 55, 59, 62, },
152 { 28, 36, 43, 49, 54, 58, 61, 63, },
156 * NOTE: Each function hls_foo correspond to the function foo in the
157 * specification (HLS stands for High Level Syntax).
164 /* free everything allocated by pic_arrays_init() */
165 static void pic_arrays_free(HEVCContext *s)
168 av_freep(&s->deblock);
170 av_freep(&s->skip_flag);
171 av_freep(&s->tab_ct_depth);
173 av_freep(&s->tab_ipm);
174 av_freep(&s->cbf_luma);
175 av_freep(&s->is_pcm);
177 av_freep(&s->qp_y_tab);
178 av_freep(&s->tab_slice_address);
179 av_freep(&s->filter_slice_edges);
181 av_freep(&s->horizontal_bs);
182 av_freep(&s->vertical_bs);
184 av_buffer_pool_uninit(&s->tab_mvf_pool);
185 av_buffer_pool_uninit(&s->rpl_tab_pool);
188 /* allocate arrays that depend on frame dimensions */
189 static int pic_arrays_init(HEVCContext *s, const HEVCSPS *sps)
191 int log2_min_cb_size = sps->log2_min_cb_size;
192 int width = sps->width;
193 int height = sps->height;
194 int pic_size_in_ctb = ((width >> log2_min_cb_size) + 1) *
195 ((height >> log2_min_cb_size) + 1);
196 int ctb_count = sps->ctb_width * sps->ctb_height;
197 int min_pu_size = sps->min_pu_width * sps->min_pu_height;
199 s->bs_width = width >> 3;
200 s->bs_height = height >> 3;
202 s->sao = av_mallocz_array(ctb_count, sizeof(*s->sao));
203 s->deblock = av_mallocz_array(ctb_count, sizeof(*s->deblock));
204 if (!s->sao || !s->deblock)
207 s->skip_flag = av_malloc(pic_size_in_ctb);
208 s->tab_ct_depth = av_malloc(sps->min_cb_height * sps->min_cb_width);
209 if (!s->skip_flag || !s->tab_ct_depth)
212 s->cbf_luma = av_malloc(sps->min_tb_width * sps->min_tb_height);
213 s->tab_ipm = av_mallocz(min_pu_size);
214 s->is_pcm = av_malloc(min_pu_size);
215 if (!s->tab_ipm || !s->cbf_luma || !s->is_pcm)
218 s->filter_slice_edges = av_malloc(ctb_count);
219 s->tab_slice_address = av_malloc(pic_size_in_ctb *
220 sizeof(*s->tab_slice_address));
221 s->qp_y_tab = av_malloc(pic_size_in_ctb *
222 sizeof(*s->qp_y_tab));
223 if (!s->qp_y_tab || !s->filter_slice_edges || !s->tab_slice_address)
226 s->horizontal_bs = av_mallocz(2 * s->bs_width * (s->bs_height + 1));
227 s->vertical_bs = av_mallocz(2 * s->bs_width * (s->bs_height + 1));
228 if (!s->horizontal_bs || !s->vertical_bs)
231 s->tab_mvf_pool = av_buffer_pool_init(min_pu_size * sizeof(MvField),
233 s->rpl_tab_pool = av_buffer_pool_init(ctb_count * sizeof(RefPicListTab),
235 if (!s->tab_mvf_pool || !s->rpl_tab_pool)
242 return AVERROR(ENOMEM);
245 static void pred_weight_table(HEVCContext *s, GetBitContext *gb)
249 uint8_t luma_weight_l0_flag[16];
250 uint8_t chroma_weight_l0_flag[16];
251 uint8_t luma_weight_l1_flag[16];
252 uint8_t chroma_weight_l1_flag[16];
254 s->sh.luma_log2_weight_denom = get_ue_golomb_long(gb);
255 if (s->sps->chroma_format_idc != 0) {
256 int delta = get_se_golomb(gb);
257 s->sh.chroma_log2_weight_denom = av_clip_c(s->sh.luma_log2_weight_denom + delta, 0, 7);
260 for (i = 0; i < s->sh.nb_refs[L0]; i++) {
261 luma_weight_l0_flag[i] = get_bits1(gb);
262 if (!luma_weight_l0_flag[i]) {
263 s->sh.luma_weight_l0[i] = 1 << s->sh.luma_log2_weight_denom;
264 s->sh.luma_offset_l0[i] = 0;
267 if (s->sps->chroma_format_idc != 0) { // FIXME: invert "if" and "for"
268 for (i = 0; i < s->sh.nb_refs[L0]; i++)
269 chroma_weight_l0_flag[i] = get_bits1(gb);
271 for (i = 0; i < s->sh.nb_refs[L0]; i++)
272 chroma_weight_l0_flag[i] = 0;
274 for (i = 0; i < s->sh.nb_refs[L0]; i++) {
275 if (luma_weight_l0_flag[i]) {
276 int delta_luma_weight_l0 = get_se_golomb(gb);
277 s->sh.luma_weight_l0[i] = (1 << s->sh.luma_log2_weight_denom) + delta_luma_weight_l0;
278 s->sh.luma_offset_l0[i] = get_se_golomb(gb);
280 if (chroma_weight_l0_flag[i]) {
281 for (j = 0; j < 2; j++) {
282 int delta_chroma_weight_l0 = get_se_golomb(gb);
283 int delta_chroma_offset_l0 = get_se_golomb(gb);
284 s->sh.chroma_weight_l0[i][j] = (1 << s->sh.chroma_log2_weight_denom) + delta_chroma_weight_l0;
285 s->sh.chroma_offset_l0[i][j] = av_clip_c((delta_chroma_offset_l0 - ((128 * s->sh.chroma_weight_l0[i][j])
286 >> s->sh.chroma_log2_weight_denom) + 128), -128, 127);
289 s->sh.chroma_weight_l0[i][0] = 1 << s->sh.chroma_log2_weight_denom;
290 s->sh.chroma_offset_l0[i][0] = 0;
291 s->sh.chroma_weight_l0[i][1] = 1 << s->sh.chroma_log2_weight_denom;
292 s->sh.chroma_offset_l0[i][1] = 0;
295 if (s->sh.slice_type == B_SLICE) {
296 for (i = 0; i < s->sh.nb_refs[L1]; i++) {
297 luma_weight_l1_flag[i] = get_bits1(gb);
298 if (!luma_weight_l1_flag[i]) {
299 s->sh.luma_weight_l1[i] = 1 << s->sh.luma_log2_weight_denom;
300 s->sh.luma_offset_l1[i] = 0;
303 if (s->sps->chroma_format_idc != 0) {
304 for (i = 0; i < s->sh.nb_refs[L1]; i++)
305 chroma_weight_l1_flag[i] = get_bits1(gb);
307 for (i = 0; i < s->sh.nb_refs[L1]; i++)
308 chroma_weight_l1_flag[i] = 0;
310 for (i = 0; i < s->sh.nb_refs[L1]; i++) {
311 if (luma_weight_l1_flag[i]) {
312 int delta_luma_weight_l1 = get_se_golomb(gb);
313 s->sh.luma_weight_l1[i] = (1 << s->sh.luma_log2_weight_denom) + delta_luma_weight_l1;
314 s->sh.luma_offset_l1[i] = get_se_golomb(gb);
316 if (chroma_weight_l1_flag[i]) {
317 for (j = 0; j < 2; j++) {
318 int delta_chroma_weight_l1 = get_se_golomb(gb);
319 int delta_chroma_offset_l1 = get_se_golomb(gb);
320 s->sh.chroma_weight_l1[i][j] = (1 << s->sh.chroma_log2_weight_denom) + delta_chroma_weight_l1;
321 s->sh.chroma_offset_l1[i][j] = av_clip_c((delta_chroma_offset_l1 - ((128 * s->sh.chroma_weight_l1[i][j])
322 >> s->sh.chroma_log2_weight_denom) + 128), -128, 127);
325 s->sh.chroma_weight_l1[i][0] = 1 << s->sh.chroma_log2_weight_denom;
326 s->sh.chroma_offset_l1[i][0] = 0;
327 s->sh.chroma_weight_l1[i][1] = 1 << s->sh.chroma_log2_weight_denom;
328 s->sh.chroma_offset_l1[i][1] = 0;
334 static int decode_lt_rps(HEVCContext *s, LongTermRPS *rps, GetBitContext *gb)
336 const HEVCSPS *sps = s->sps;
337 int max_poc_lsb = 1 << sps->log2_max_poc_lsb;
338 int prev_delta_msb = 0;
339 unsigned int nb_sps = 0, nb_sh;
343 if (!sps->long_term_ref_pics_present_flag)
346 if (sps->num_long_term_ref_pics_sps > 0)
347 nb_sps = get_ue_golomb_long(gb);
348 nb_sh = get_ue_golomb_long(gb);
350 if (nb_sh + nb_sps > FF_ARRAY_ELEMS(rps->poc))
351 return AVERROR_INVALIDDATA;
353 rps->nb_refs = nb_sh + nb_sps;
355 for (i = 0; i < rps->nb_refs; i++) {
356 uint8_t delta_poc_msb_present;
359 uint8_t lt_idx_sps = 0;
361 if (sps->num_long_term_ref_pics_sps > 1)
362 lt_idx_sps = get_bits(gb, av_ceil_log2(sps->num_long_term_ref_pics_sps));
364 rps->poc[i] = sps->lt_ref_pic_poc_lsb_sps[lt_idx_sps];
365 rps->used[i] = sps->used_by_curr_pic_lt_sps_flag[lt_idx_sps];
367 rps->poc[i] = get_bits(gb, sps->log2_max_poc_lsb);
368 rps->used[i] = get_bits1(gb);
371 delta_poc_msb_present = get_bits1(gb);
372 if (delta_poc_msb_present) {
373 int delta = get_ue_golomb_long(gb);
375 if (i && i != nb_sps)
376 delta += prev_delta_msb;
378 rps->poc[i] += s->poc - delta * max_poc_lsb - s->sh.pic_order_cnt_lsb;
379 prev_delta_msb = delta;
386 static int set_sps(HEVCContext *s, const HEVCSPS *sps)
389 unsigned int num = 0, den = 0;
392 ret = pic_arrays_init(s, sps);
396 s->avctx->coded_width = sps->width;
397 s->avctx->coded_height = sps->height;
398 s->avctx->width = sps->output_width;
399 s->avctx->height = sps->output_height;
400 s->avctx->pix_fmt = sps->pix_fmt;
401 s->avctx->has_b_frames = sps->temporal_layer[sps->max_sub_layers - 1].num_reorder_pics;
403 ff_set_sar(s->avctx, sps->vui.sar);
405 if (sps->vui.video_signal_type_present_flag)
406 s->avctx->color_range = sps->vui.video_full_range_flag ? AVCOL_RANGE_JPEG
409 s->avctx->color_range = AVCOL_RANGE_MPEG;
411 if (sps->vui.colour_description_present_flag) {
412 s->avctx->color_primaries = sps->vui.colour_primaries;
413 s->avctx->color_trc = sps->vui.transfer_characteristic;
414 s->avctx->colorspace = sps->vui.matrix_coeffs;
416 s->avctx->color_primaries = AVCOL_PRI_UNSPECIFIED;
417 s->avctx->color_trc = AVCOL_TRC_UNSPECIFIED;
418 s->avctx->colorspace = AVCOL_SPC_UNSPECIFIED;
421 ff_hevc_pred_init(&s->hpc, sps->bit_depth);
422 ff_hevc_dsp_init (&s->hevcdsp, sps->bit_depth);
423 ff_videodsp_init (&s->vdsp, sps->bit_depth);
425 if (sps->sao_enabled) {
426 av_frame_unref(s->tmp_frame);
427 ret = ff_get_buffer(s->avctx, s->tmp_frame, AV_GET_BUFFER_FLAG_REF);
430 s->frame = s->tmp_frame;
434 s->vps = (HEVCVPS*) s->vps_list[s->sps->vps_id]->data;
436 if (s->vps->vps_timing_info_present_flag) {
437 num = s->vps->vps_num_units_in_tick;
438 den = s->vps->vps_time_scale;
439 } else if (sps->vui.vui_timing_info_present_flag) {
440 num = sps->vui.vui_num_units_in_tick;
441 den = sps->vui.vui_time_scale;
444 if (num != 0 && den != 0)
445 av_reduce(&s->avctx->framerate.den, &s->avctx->framerate.num,
456 static int hls_slice_header(HEVCContext *s)
458 GetBitContext *gb = &s->HEVClc.gb;
459 SliceHeader *sh = &s->sh;
463 sh->first_slice_in_pic_flag = get_bits1(gb);
464 if ((IS_IDR(s) || IS_BLA(s)) && sh->first_slice_in_pic_flag) {
465 s->seq_decode = (s->seq_decode + 1) & 0xff;
468 ff_hevc_clear_refs(s);
471 sh->no_output_of_prior_pics_flag = get_bits1(gb);
473 sh->pps_id = get_ue_golomb_long(gb);
474 if (sh->pps_id >= MAX_PPS_COUNT || !s->pps_list[sh->pps_id]) {
475 av_log(s->avctx, AV_LOG_ERROR, "PPS id out of range: %d\n", sh->pps_id);
476 return AVERROR_INVALIDDATA;
478 if (!sh->first_slice_in_pic_flag &&
479 s->pps != (HEVCPPS*)s->pps_list[sh->pps_id]->data) {
480 av_log(s->avctx, AV_LOG_ERROR, "PPS changed between slices.\n");
481 return AVERROR_INVALIDDATA;
483 s->pps = (HEVCPPS*)s->pps_list[sh->pps_id]->data;
485 if (s->sps != (HEVCSPS*)s->sps_list[s->pps->sps_id]->data) {
486 s->sps = (HEVCSPS*)s->sps_list[s->pps->sps_id]->data;
488 ff_hevc_clear_refs(s);
489 ret = set_sps(s, s->sps);
493 s->seq_decode = (s->seq_decode + 1) & 0xff;
497 s->avctx->profile = s->sps->ptl.general_ptl.profile_idc;
498 s->avctx->level = s->sps->ptl.general_ptl.level_idc;
500 sh->dependent_slice_segment_flag = 0;
501 if (!sh->first_slice_in_pic_flag) {
502 int slice_address_length;
504 if (s->pps->dependent_slice_segments_enabled_flag)
505 sh->dependent_slice_segment_flag = get_bits1(gb);
507 slice_address_length = av_ceil_log2(s->sps->ctb_width *
509 sh->slice_segment_addr = get_bits(gb, slice_address_length);
510 if (sh->slice_segment_addr >= s->sps->ctb_width * s->sps->ctb_height) {
511 av_log(s->avctx, AV_LOG_ERROR,
512 "Invalid slice segment address: %u.\n",
513 sh->slice_segment_addr);
514 return AVERROR_INVALIDDATA;
517 if (!sh->dependent_slice_segment_flag) {
518 sh->slice_addr = sh->slice_segment_addr;
522 sh->slice_segment_addr = sh->slice_addr = 0;
524 s->slice_initialized = 0;
527 if (!sh->dependent_slice_segment_flag) {
528 s->slice_initialized = 0;
530 for (i = 0; i < s->pps->num_extra_slice_header_bits; i++)
531 skip_bits(gb, 1); // slice_reserved_undetermined_flag[]
533 sh->slice_type = get_ue_golomb_long(gb);
534 if (!(sh->slice_type == I_SLICE ||
535 sh->slice_type == P_SLICE ||
536 sh->slice_type == B_SLICE)) {
537 av_log(s->avctx, AV_LOG_ERROR, "Unknown slice type: %d.\n",
539 return AVERROR_INVALIDDATA;
541 if (IS_IRAP(s) && sh->slice_type != I_SLICE) {
542 av_log(s->avctx, AV_LOG_ERROR, "Inter slices in an IRAP frame.\n");
543 return AVERROR_INVALIDDATA;
546 // when flag is not present, picture is inferred to be output
547 sh->pic_output_flag = 1;
548 if (s->pps->output_flag_present_flag)
549 sh->pic_output_flag = get_bits1(gb);
551 if (s->sps->separate_colour_plane_flag)
552 sh->colour_plane_id = get_bits(gb, 2);
555 int short_term_ref_pic_set_sps_flag, poc;
557 sh->pic_order_cnt_lsb = get_bits(gb, s->sps->log2_max_poc_lsb);
558 poc = ff_hevc_compute_poc(s, sh->pic_order_cnt_lsb);
559 if (!sh->first_slice_in_pic_flag && poc != s->poc) {
560 av_log(s->avctx, AV_LOG_WARNING,
561 "Ignoring POC change between slices: %d -> %d\n", s->poc, poc);
562 if (s->avctx->err_recognition & AV_EF_EXPLODE)
563 return AVERROR_INVALIDDATA;
568 short_term_ref_pic_set_sps_flag = get_bits1(gb);
569 if (!short_term_ref_pic_set_sps_flag) {
570 ret = ff_hevc_decode_short_term_rps(s, &sh->slice_rps, s->sps, 1);
574 sh->short_term_rps = &sh->slice_rps;
576 int numbits, rps_idx;
578 if (!s->sps->nb_st_rps) {
579 av_log(s->avctx, AV_LOG_ERROR, "No ref lists in the SPS.\n");
580 return AVERROR_INVALIDDATA;
583 numbits = av_ceil_log2(s->sps->nb_st_rps);
584 rps_idx = numbits > 0 ? get_bits(gb, numbits) : 0;
585 sh->short_term_rps = &s->sps->st_rps[rps_idx];
588 ret = decode_lt_rps(s, &sh->long_term_rps, gb);
590 av_log(s->avctx, AV_LOG_WARNING, "Invalid long term RPS.\n");
591 if (s->avctx->err_recognition & AV_EF_EXPLODE)
592 return AVERROR_INVALIDDATA;
595 if (s->sps->sps_temporal_mvp_enabled_flag)
596 sh->slice_temporal_mvp_enabled_flag = get_bits1(gb);
598 sh->slice_temporal_mvp_enabled_flag = 0;
600 s->sh.short_term_rps = NULL;
605 if (s->temporal_id == 0 &&
606 s->nal_unit_type != NAL_TRAIL_N &&
607 s->nal_unit_type != NAL_TSA_N &&
608 s->nal_unit_type != NAL_STSA_N &&
609 s->nal_unit_type != NAL_RADL_N &&
610 s->nal_unit_type != NAL_RADL_R &&
611 s->nal_unit_type != NAL_RASL_N &&
612 s->nal_unit_type != NAL_RASL_R)
615 if (s->sps->sao_enabled) {
616 sh->slice_sample_adaptive_offset_flag[0] = get_bits1(gb);
617 sh->slice_sample_adaptive_offset_flag[1] =
618 sh->slice_sample_adaptive_offset_flag[2] = get_bits1(gb);
620 sh->slice_sample_adaptive_offset_flag[0] = 0;
621 sh->slice_sample_adaptive_offset_flag[1] = 0;
622 sh->slice_sample_adaptive_offset_flag[2] = 0;
625 sh->nb_refs[L0] = sh->nb_refs[L1] = 0;
626 if (sh->slice_type == P_SLICE || sh->slice_type == B_SLICE) {
629 sh->nb_refs[L0] = s->pps->num_ref_idx_l0_default_active;
630 if (sh->slice_type == B_SLICE)
631 sh->nb_refs[L1] = s->pps->num_ref_idx_l1_default_active;
633 if (get_bits1(gb)) { // num_ref_idx_active_override_flag
634 sh->nb_refs[L0] = get_ue_golomb_long(gb) + 1;
635 if (sh->slice_type == B_SLICE)
636 sh->nb_refs[L1] = get_ue_golomb_long(gb) + 1;
638 if (sh->nb_refs[L0] > MAX_REFS || sh->nb_refs[L1] > MAX_REFS) {
639 av_log(s->avctx, AV_LOG_ERROR, "Too many refs: %d/%d.\n",
640 sh->nb_refs[L0], sh->nb_refs[L1]);
641 return AVERROR_INVALIDDATA;
644 sh->rpl_modification_flag[0] = 0;
645 sh->rpl_modification_flag[1] = 0;
646 nb_refs = ff_hevc_frame_nb_refs(s);
648 av_log(s->avctx, AV_LOG_ERROR, "Zero refs for a frame with P or B slices.\n");
649 return AVERROR_INVALIDDATA;
652 if (s->pps->lists_modification_present_flag && nb_refs > 1) {
653 sh->rpl_modification_flag[0] = get_bits1(gb);
654 if (sh->rpl_modification_flag[0]) {
655 for (i = 0; i < sh->nb_refs[L0]; i++)
656 sh->list_entry_lx[0][i] = get_bits(gb, av_ceil_log2(nb_refs));
659 if (sh->slice_type == B_SLICE) {
660 sh->rpl_modification_flag[1] = get_bits1(gb);
661 if (sh->rpl_modification_flag[1] == 1)
662 for (i = 0; i < sh->nb_refs[L1]; i++)
663 sh->list_entry_lx[1][i] = get_bits(gb, av_ceil_log2(nb_refs));
667 if (sh->slice_type == B_SLICE)
668 sh->mvd_l1_zero_flag = get_bits1(gb);
670 if (s->pps->cabac_init_present_flag)
671 sh->cabac_init_flag = get_bits1(gb);
673 sh->cabac_init_flag = 0;
675 sh->collocated_ref_idx = 0;
676 if (sh->slice_temporal_mvp_enabled_flag) {
677 sh->collocated_list = L0;
678 if (sh->slice_type == B_SLICE)
679 sh->collocated_list = !get_bits1(gb);
681 if (sh->nb_refs[sh->collocated_list] > 1) {
682 sh->collocated_ref_idx = get_ue_golomb_long(gb);
683 if (sh->collocated_ref_idx >= sh->nb_refs[sh->collocated_list]) {
684 av_log(s->avctx, AV_LOG_ERROR,
685 "Invalid collocated_ref_idx: %d.\n",
686 sh->collocated_ref_idx);
687 return AVERROR_INVALIDDATA;
692 if ((s->pps->weighted_pred_flag && sh->slice_type == P_SLICE) ||
693 (s->pps->weighted_bipred_flag && sh->slice_type == B_SLICE)) {
694 pred_weight_table(s, gb);
697 sh->max_num_merge_cand = 5 - get_ue_golomb_long(gb);
698 if (sh->max_num_merge_cand < 1 || sh->max_num_merge_cand > 5) {
699 av_log(s->avctx, AV_LOG_ERROR,
700 "Invalid number of merging MVP candidates: %d.\n",
701 sh->max_num_merge_cand);
702 return AVERROR_INVALIDDATA;
706 sh->slice_qp_delta = get_se_golomb(gb);
708 if (s->pps->pic_slice_level_chroma_qp_offsets_present_flag) {
709 sh->slice_cb_qp_offset = get_se_golomb(gb);
710 sh->slice_cr_qp_offset = get_se_golomb(gb);
712 sh->slice_cb_qp_offset = 0;
713 sh->slice_cr_qp_offset = 0;
716 if (s->pps->deblocking_filter_control_present_flag) {
717 int deblocking_filter_override_flag = 0;
719 if (s->pps->deblocking_filter_override_enabled_flag)
720 deblocking_filter_override_flag = get_bits1(gb);
722 if (deblocking_filter_override_flag) {
723 sh->disable_deblocking_filter_flag = get_bits1(gb);
724 if (!sh->disable_deblocking_filter_flag) {
725 sh->beta_offset = get_se_golomb(gb) * 2;
726 sh->tc_offset = get_se_golomb(gb) * 2;
729 sh->disable_deblocking_filter_flag = s->pps->disable_dbf;
730 sh->beta_offset = s->pps->beta_offset;
731 sh->tc_offset = s->pps->tc_offset;
734 sh->disable_deblocking_filter_flag = 0;
739 if (s->pps->seq_loop_filter_across_slices_enabled_flag &&
740 (sh->slice_sample_adaptive_offset_flag[0] ||
741 sh->slice_sample_adaptive_offset_flag[1] ||
742 !sh->disable_deblocking_filter_flag)) {
743 sh->slice_loop_filter_across_slices_enabled_flag = get_bits1(gb);
745 sh->slice_loop_filter_across_slices_enabled_flag = s->pps->seq_loop_filter_across_slices_enabled_flag;
747 } else if (!s->slice_initialized) {
748 av_log(s->avctx, AV_LOG_ERROR, "Independent slice segment missing.\n");
749 return AVERROR_INVALIDDATA;
752 sh->num_entry_point_offsets = 0;
753 if (s->pps->tiles_enabled_flag || s->pps->entropy_coding_sync_enabled_flag) {
754 sh->num_entry_point_offsets = get_ue_golomb_long(gb);
755 if (sh->num_entry_point_offsets > 0) {
756 int offset_len = get_ue_golomb_long(gb) + 1;
758 for (i = 0; i < sh->num_entry_point_offsets; i++)
759 skip_bits(gb, offset_len);
763 if (s->pps->slice_header_extension_present_flag) {
764 unsigned int length = get_ue_golomb_long(gb);
765 for (i = 0; i < length; i++)
766 skip_bits(gb, 8); // slice_header_extension_data_byte
769 // Inferred parameters
770 sh->slice_qp = 26 + s->pps->pic_init_qp_minus26 + sh->slice_qp_delta;
771 if (sh->slice_qp > 51 ||
772 sh->slice_qp < -s->sps->qp_bd_offset) {
773 av_log(s->avctx, AV_LOG_ERROR,
774 "The slice_qp %d is outside the valid range "
777 -s->sps->qp_bd_offset);
778 return AVERROR_INVALIDDATA;
781 sh->slice_ctb_addr_rs = sh->slice_segment_addr;
783 if (!s->sh.slice_ctb_addr_rs && s->sh.dependent_slice_segment_flag) {
784 av_log(s->avctx, AV_LOG_ERROR, "Impossible slice segment.\n");
785 return AVERROR_INVALIDDATA;
788 s->HEVClc.first_qp_group = !s->sh.dependent_slice_segment_flag;
790 if (!s->pps->cu_qp_delta_enabled_flag)
791 s->HEVClc.qp_y = FFUMOD(s->sh.slice_qp + 52 + 2 * s->sps->qp_bd_offset,
792 52 + s->sps->qp_bd_offset) - s->sps->qp_bd_offset;
794 s->slice_initialized = 1;
799 #define CTB(tab, x, y) ((tab)[(y) * s->sps->ctb_width + (x)])
801 #define SET_SAO(elem, value) \
803 if (!sao_merge_up_flag && !sao_merge_left_flag) \
805 else if (sao_merge_left_flag) \
806 sao->elem = CTB(s->sao, rx-1, ry).elem; \
807 else if (sao_merge_up_flag) \
808 sao->elem = CTB(s->sao, rx, ry-1).elem; \
813 static void hls_sao_param(HEVCContext *s, int rx, int ry)
815 HEVCLocalContext *lc = &s->HEVClc;
816 int sao_merge_left_flag = 0;
817 int sao_merge_up_flag = 0;
818 int shift = s->sps->bit_depth - FFMIN(s->sps->bit_depth, 10);
819 SAOParams *sao = &CTB(s->sao, rx, ry);
822 if (s->sh.slice_sample_adaptive_offset_flag[0] ||
823 s->sh.slice_sample_adaptive_offset_flag[1]) {
825 if (lc->ctb_left_flag)
826 sao_merge_left_flag = ff_hevc_sao_merge_flag_decode(s);
828 if (ry > 0 && !sao_merge_left_flag) {
830 sao_merge_up_flag = ff_hevc_sao_merge_flag_decode(s);
834 for (c_idx = 0; c_idx < 3; c_idx++) {
835 if (!s->sh.slice_sample_adaptive_offset_flag[c_idx]) {
836 sao->type_idx[c_idx] = SAO_NOT_APPLIED;
841 sao->type_idx[2] = sao->type_idx[1];
842 sao->eo_class[2] = sao->eo_class[1];
844 SET_SAO(type_idx[c_idx], ff_hevc_sao_type_idx_decode(s));
847 if (sao->type_idx[c_idx] == SAO_NOT_APPLIED)
850 for (i = 0; i < 4; i++)
851 SET_SAO(offset_abs[c_idx][i], ff_hevc_sao_offset_abs_decode(s));
853 if (sao->type_idx[c_idx] == SAO_BAND) {
854 for (i = 0; i < 4; i++) {
855 if (sao->offset_abs[c_idx][i]) {
856 SET_SAO(offset_sign[c_idx][i],
857 ff_hevc_sao_offset_sign_decode(s));
859 sao->offset_sign[c_idx][i] = 0;
862 SET_SAO(band_position[c_idx], ff_hevc_sao_band_position_decode(s));
863 } else if (c_idx != 2) {
864 SET_SAO(eo_class[c_idx], ff_hevc_sao_eo_class_decode(s));
867 // Inferred parameters
868 sao->offset_val[c_idx][0] = 0;
869 for (i = 0; i < 4; i++) {
870 sao->offset_val[c_idx][i + 1] = sao->offset_abs[c_idx][i] << shift;
871 if (sao->type_idx[c_idx] == SAO_EDGE) {
873 sao->offset_val[c_idx][i + 1] = -sao->offset_val[c_idx][i + 1];
874 } else if (sao->offset_sign[c_idx][i]) {
875 sao->offset_val[c_idx][i + 1] = -sao->offset_val[c_idx][i + 1];
884 static void hls_residual_coding(HEVCContext *s, int x0, int y0,
885 int log2_trafo_size, enum ScanType scan_idx,
888 #define GET_COORD(offset, n) \
890 x_c = (scan_x_cg[offset >> 4] << 2) + scan_x_off[n]; \
891 y_c = (scan_y_cg[offset >> 4] << 2) + scan_y_off[n]; \
893 HEVCLocalContext *lc = &s->HEVClc;
894 int transform_skip_flag = 0;
896 int last_significant_coeff_x, last_significant_coeff_y;
900 int greater1_ctx = 1;
903 int x_cg_last_sig, y_cg_last_sig;
905 const uint8_t *scan_x_cg, *scan_y_cg, *scan_x_off, *scan_y_off;
907 ptrdiff_t stride = s->frame->linesize[c_idx];
908 int hshift = s->sps->hshift[c_idx];
909 int vshift = s->sps->vshift[c_idx];
910 uint8_t *dst = &s->frame->data[c_idx][(y0 >> vshift) * stride +
911 ((x0 >> hshift) << s->sps->pixel_shift)];
912 DECLARE_ALIGNED(16, int16_t, coeffs[MAX_TB_SIZE * MAX_TB_SIZE]) = { 0 };
913 DECLARE_ALIGNED(8, uint8_t, significant_coeff_group_flag[8][8]) = { { 0 } };
915 int trafo_size = 1 << log2_trafo_size;
916 int i, qp, shift, add, scale, scale_m;
917 const uint8_t level_scale[] = { 40, 45, 51, 57, 64, 72 };
918 const uint8_t *scale_matrix;
921 // Derive QP for dequant
922 if (!lc->cu.cu_transquant_bypass_flag) {
923 static const int qp_c[] = {
924 29, 30, 31, 32, 33, 33, 34, 34, 35, 35, 36, 36, 37, 37
927 static const uint8_t rem6[51 + 2 * 6 + 1] = {
928 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2,
929 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5,
930 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3,
933 static const uint8_t div6[51 + 2 * 6 + 1] = {
934 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3,
935 3, 3, 3, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6,
936 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10,
941 qp = qp_y + s->sps->qp_bd_offset;
946 offset = s->pps->cb_qp_offset + s->sh.slice_cb_qp_offset;
948 offset = s->pps->cr_qp_offset + s->sh.slice_cr_qp_offset;
950 qp_i = av_clip_c(qp_y + offset, -s->sps->qp_bd_offset, 57);
956 qp = qp_c[qp_i - 30];
958 qp += s->sps->qp_bd_offset;
961 shift = s->sps->bit_depth + log2_trafo_size - 5;
962 add = 1 << (shift - 1);
963 scale = level_scale[rem6[qp]] << (div6[qp]);
964 scale_m = 16; // default when no custom scaling lists.
967 if (s->sps->scaling_list_enable_flag) {
968 const ScalingList *sl = s->pps->scaling_list_data_present_flag ?
969 &s->pps->scaling_list : &s->sps->scaling_list;
970 int matrix_id = lc->cu.pred_mode != MODE_INTRA;
972 if (log2_trafo_size != 5)
973 matrix_id = 3 * matrix_id + c_idx;
975 scale_matrix = sl->sl[log2_trafo_size - 2][matrix_id];
976 if (log2_trafo_size >= 4)
977 dc_scale = sl->sl_dc[log2_trafo_size - 4][matrix_id];
981 if (s->pps->transform_skip_enabled_flag &&
982 !lc->cu.cu_transquant_bypass_flag &&
983 log2_trafo_size == 2) {
984 transform_skip_flag = ff_hevc_transform_skip_flag_decode(s, c_idx);
987 last_significant_coeff_x =
988 ff_hevc_last_significant_coeff_x_prefix_decode(s, c_idx, log2_trafo_size);
989 last_significant_coeff_y =
990 ff_hevc_last_significant_coeff_y_prefix_decode(s, c_idx, log2_trafo_size);
992 if (last_significant_coeff_x > 3) {
993 int suffix = ff_hevc_last_significant_coeff_suffix_decode(s, last_significant_coeff_x);
994 last_significant_coeff_x = (1 << ((last_significant_coeff_x >> 1) - 1)) *
995 (2 + (last_significant_coeff_x & 1)) +
999 if (last_significant_coeff_y > 3) {
1000 int suffix = ff_hevc_last_significant_coeff_suffix_decode(s, last_significant_coeff_y);
1001 last_significant_coeff_y = (1 << ((last_significant_coeff_y >> 1) - 1)) *
1002 (2 + (last_significant_coeff_y & 1)) +
1006 if (scan_idx == SCAN_VERT)
1007 FFSWAP(int, last_significant_coeff_x, last_significant_coeff_y);
1009 x_cg_last_sig = last_significant_coeff_x >> 2;
1010 y_cg_last_sig = last_significant_coeff_y >> 2;
1014 int last_x_c = last_significant_coeff_x & 3;
1015 int last_y_c = last_significant_coeff_y & 3;
1017 scan_x_off = ff_hevc_diag_scan4x4_x;
1018 scan_y_off = ff_hevc_diag_scan4x4_y;
1019 num_coeff = diag_scan4x4_inv[last_y_c][last_x_c];
1020 if (trafo_size == 4) {
1021 scan_x_cg = scan_1x1;
1022 scan_y_cg = scan_1x1;
1023 } else if (trafo_size == 8) {
1024 num_coeff += diag_scan2x2_inv[y_cg_last_sig][x_cg_last_sig] << 4;
1025 scan_x_cg = diag_scan2x2_x;
1026 scan_y_cg = diag_scan2x2_y;
1027 } else if (trafo_size == 16) {
1028 num_coeff += diag_scan4x4_inv[y_cg_last_sig][x_cg_last_sig] << 4;
1029 scan_x_cg = ff_hevc_diag_scan4x4_x;
1030 scan_y_cg = ff_hevc_diag_scan4x4_y;
1031 } else { // trafo_size == 32
1032 num_coeff += diag_scan8x8_inv[y_cg_last_sig][x_cg_last_sig] << 4;
1033 scan_x_cg = ff_hevc_diag_scan8x8_x;
1034 scan_y_cg = ff_hevc_diag_scan8x8_y;
1039 scan_x_cg = horiz_scan2x2_x;
1040 scan_y_cg = horiz_scan2x2_y;
1041 scan_x_off = horiz_scan4x4_x;
1042 scan_y_off = horiz_scan4x4_y;
1043 num_coeff = horiz_scan8x8_inv[last_significant_coeff_y][last_significant_coeff_x];
1045 default: //SCAN_VERT
1046 scan_x_cg = horiz_scan2x2_y;
1047 scan_y_cg = horiz_scan2x2_x;
1048 scan_x_off = horiz_scan4x4_y;
1049 scan_y_off = horiz_scan4x4_x;
1050 num_coeff = horiz_scan8x8_inv[last_significant_coeff_x][last_significant_coeff_y];
1054 num_last_subset = (num_coeff - 1) >> 4;
1056 for (i = num_last_subset; i >= 0; i--) {
1058 int x_cg, y_cg, x_c, y_c;
1059 int implicit_non_zero_coeff = 0;
1060 int64_t trans_coeff_level;
1062 int offset = i << 4;
1064 uint8_t significant_coeff_flag_idx[16];
1065 uint8_t nb_significant_coeff_flag = 0;
1067 x_cg = scan_x_cg[i];
1068 y_cg = scan_y_cg[i];
1070 if (i < num_last_subset && i > 0) {
1072 if (x_cg < (1 << (log2_trafo_size - 2)) - 1)
1073 ctx_cg += significant_coeff_group_flag[x_cg + 1][y_cg];
1074 if (y_cg < (1 << (log2_trafo_size - 2)) - 1)
1075 ctx_cg += significant_coeff_group_flag[x_cg][y_cg + 1];
1077 significant_coeff_group_flag[x_cg][y_cg] =
1078 ff_hevc_significant_coeff_group_flag_decode(s, c_idx, ctx_cg);
1079 implicit_non_zero_coeff = 1;
1081 significant_coeff_group_flag[x_cg][y_cg] =
1082 ((x_cg == x_cg_last_sig && y_cg == y_cg_last_sig) ||
1083 (x_cg == 0 && y_cg == 0));
1086 last_scan_pos = num_coeff - offset - 1;
1088 if (i == num_last_subset) {
1089 n_end = last_scan_pos - 1;
1090 significant_coeff_flag_idx[0] = last_scan_pos;
1091 nb_significant_coeff_flag = 1;
1096 if (x_cg < ((1 << log2_trafo_size) - 1) >> 2)
1097 prev_sig = significant_coeff_group_flag[x_cg + 1][y_cg];
1098 if (y_cg < ((1 << log2_trafo_size) - 1) >> 2)
1099 prev_sig += significant_coeff_group_flag[x_cg][y_cg + 1] << 1;
1101 for (n = n_end; n >= 0; n--) {
1102 GET_COORD(offset, n);
1104 if (significant_coeff_group_flag[x_cg][y_cg] &&
1105 (n > 0 || implicit_non_zero_coeff == 0)) {
1106 if (ff_hevc_significant_coeff_flag_decode(s, c_idx, x_c, y_c,
1110 significant_coeff_flag_idx[nb_significant_coeff_flag] = n;
1111 nb_significant_coeff_flag++;
1112 implicit_non_zero_coeff = 0;
1115 int last_cg = (x_c == (x_cg << 2) && y_c == (y_cg << 2));
1116 if (last_cg && implicit_non_zero_coeff && significant_coeff_group_flag[x_cg][y_cg]) {
1117 significant_coeff_flag_idx[nb_significant_coeff_flag] = n;
1118 nb_significant_coeff_flag++;
1123 n_end = nb_significant_coeff_flag;
1126 int first_nz_pos_in_cg = 16;
1127 int last_nz_pos_in_cg = -1;
1128 int c_rice_param = 0;
1129 int first_greater1_coeff_idx = -1;
1130 uint8_t coeff_abs_level_greater1_flag[16] = { 0 };
1131 uint16_t coeff_sign_flag;
1133 int sign_hidden = 0;
1135 // initialize first elem of coeff_bas_level_greater1_flag
1136 int ctx_set = (i > 0 && c_idx == 0) ? 2 : 0;
1138 if (!(i == num_last_subset) && greater1_ctx == 0)
1141 last_nz_pos_in_cg = significant_coeff_flag_idx[0];
1143 for (m = 0; m < (n_end > 8 ? 8 : n_end); m++) {
1144 int n_idx = significant_coeff_flag_idx[m];
1145 int inc = (ctx_set << 2) + greater1_ctx;
1146 coeff_abs_level_greater1_flag[n_idx] =
1147 ff_hevc_coeff_abs_level_greater1_flag_decode(s, c_idx, inc);
1148 if (coeff_abs_level_greater1_flag[n_idx]) {
1150 } else if (greater1_ctx > 0 && greater1_ctx < 3) {
1154 if (coeff_abs_level_greater1_flag[n_idx] &&
1155 first_greater1_coeff_idx == -1)
1156 first_greater1_coeff_idx = n_idx;
1158 first_nz_pos_in_cg = significant_coeff_flag_idx[n_end - 1];
1159 sign_hidden = last_nz_pos_in_cg - first_nz_pos_in_cg >= 4 &&
1160 !lc->cu.cu_transquant_bypass_flag;
1162 if (first_greater1_coeff_idx != -1) {
1163 coeff_abs_level_greater1_flag[first_greater1_coeff_idx] += ff_hevc_coeff_abs_level_greater2_flag_decode(s, c_idx, ctx_set);
1165 if (!s->pps->sign_data_hiding_flag || !sign_hidden) {
1166 coeff_sign_flag = ff_hevc_coeff_sign_flag(s, nb_significant_coeff_flag) << (16 - nb_significant_coeff_flag);
1168 coeff_sign_flag = ff_hevc_coeff_sign_flag(s, nb_significant_coeff_flag - 1) << (16 - (nb_significant_coeff_flag - 1));
1171 for (m = 0; m < n_end; m++) {
1172 n = significant_coeff_flag_idx[m];
1173 GET_COORD(offset, n);
1174 trans_coeff_level = 1 + coeff_abs_level_greater1_flag[n];
1175 if (trans_coeff_level == ((m < 8) ?
1176 ((n == first_greater1_coeff_idx) ? 3 : 2) : 1)) {
1177 int last_coeff_abs_level_remaining = ff_hevc_coeff_abs_level_remaining(s, trans_coeff_level, c_rice_param);
1179 trans_coeff_level += last_coeff_abs_level_remaining;
1180 if ((trans_coeff_level) > (3 * (1 << c_rice_param)))
1181 c_rice_param = FFMIN(c_rice_param + 1, 4);
1183 if (s->pps->sign_data_hiding_flag && sign_hidden) {
1184 sum_abs += trans_coeff_level;
1185 if (n == first_nz_pos_in_cg && ((sum_abs & 1) == 1))
1186 trans_coeff_level = -trans_coeff_level;
1188 if (coeff_sign_flag >> 15)
1189 trans_coeff_level = -trans_coeff_level;
1190 coeff_sign_flag <<= 1;
1191 if (!lc->cu.cu_transquant_bypass_flag) {
1192 if (s->sps->scaling_list_enable_flag) {
1193 if (y_c || x_c || log2_trafo_size < 4) {
1195 switch (log2_trafo_size) {
1196 case 3: pos = (y_c << 3) + x_c; break;
1197 case 4: pos = ((y_c >> 1) << 3) + (x_c >> 1); break;
1198 case 5: pos = ((y_c >> 2) << 3) + (x_c >> 2); break;
1199 default: pos = (y_c << 2) + x_c;
1201 scale_m = scale_matrix[pos];
1206 trans_coeff_level = (trans_coeff_level * (int64_t)scale * (int64_t)scale_m + add) >> shift;
1207 if(trans_coeff_level < 0) {
1208 if((~trans_coeff_level) & 0xFffffffffff8000)
1209 trans_coeff_level = -32768;
1211 if (trans_coeff_level & 0xffffffffffff8000)
1212 trans_coeff_level = 32767;
1215 coeffs[y_c * trafo_size + x_c] = trans_coeff_level;
1220 if (lc->cu.cu_transquant_bypass_flag) {
1221 s->hevcdsp.transquant_bypass[log2_trafo_size - 2](dst, coeffs, stride);
1223 if (transform_skip_flag)
1224 s->hevcdsp.transform_skip(dst, coeffs, stride);
1225 else if (lc->cu.pred_mode == MODE_INTRA && c_idx == 0 &&
1226 log2_trafo_size == 2)
1227 s->hevcdsp.transform_4x4_luma_add(dst, coeffs, stride);
1229 s->hevcdsp.transform_add[log2_trafo_size - 2](dst, coeffs, stride);
1233 static int hls_transform_unit(HEVCContext *s, int x0, int y0,
1234 int xBase, int yBase, int cb_xBase, int cb_yBase,
1235 int log2_cb_size, int log2_trafo_size,
1236 int trafo_depth, int blk_idx,
1237 int cbf_luma, int cbf_cb, int cbf_cr)
1239 HEVCLocalContext *lc = &s->HEVClc;
1241 if (lc->cu.pred_mode == MODE_INTRA) {
1242 int trafo_size = 1 << log2_trafo_size;
1243 ff_hevc_set_neighbour_available(s, x0, y0, trafo_size, trafo_size);
1245 s->hpc.intra_pred[log2_trafo_size - 2](s, x0, y0, 0);
1246 if (log2_trafo_size > 2) {
1247 trafo_size = trafo_size << (s->sps->hshift[1] - 1);
1248 ff_hevc_set_neighbour_available(s, x0, y0, trafo_size, trafo_size);
1249 s->hpc.intra_pred[log2_trafo_size - 3](s, x0, y0, 1);
1250 s->hpc.intra_pred[log2_trafo_size - 3](s, x0, y0, 2);
1251 } else if (blk_idx == 3) {
1252 trafo_size = trafo_size << s->sps->hshift[1];
1253 ff_hevc_set_neighbour_available(s, xBase, yBase,
1254 trafo_size, trafo_size);
1255 s->hpc.intra_pred[log2_trafo_size - 2](s, xBase, yBase, 1);
1256 s->hpc.intra_pred[log2_trafo_size - 2](s, xBase, yBase, 2);
1260 if (cbf_luma || cbf_cb || cbf_cr) {
1261 int scan_idx = SCAN_DIAG;
1262 int scan_idx_c = SCAN_DIAG;
1264 if (s->pps->cu_qp_delta_enabled_flag && !lc->tu.is_cu_qp_delta_coded) {
1265 lc->tu.cu_qp_delta = ff_hevc_cu_qp_delta_abs(s);
1266 if (lc->tu.cu_qp_delta != 0)
1267 if (ff_hevc_cu_qp_delta_sign_flag(s) == 1)
1268 lc->tu.cu_qp_delta = -lc->tu.cu_qp_delta;
1269 lc->tu.is_cu_qp_delta_coded = 1;
1271 if (lc->tu.cu_qp_delta < -(26 + s->sps->qp_bd_offset / 2) ||
1272 lc->tu.cu_qp_delta > (25 + s->sps->qp_bd_offset / 2)) {
1273 av_log(s->avctx, AV_LOG_ERROR,
1274 "The cu_qp_delta %d is outside the valid range "
1277 -(26 + s->sps->qp_bd_offset / 2),
1278 (25 + s->sps->qp_bd_offset / 2));
1279 return AVERROR_INVALIDDATA;
1282 ff_hevc_set_qPy(s, x0, y0, cb_xBase, cb_yBase, log2_cb_size);
1285 if (lc->cu.pred_mode == MODE_INTRA && log2_trafo_size < 4) {
1286 if (lc->tu.cur_intra_pred_mode >= 6 &&
1287 lc->tu.cur_intra_pred_mode <= 14) {
1288 scan_idx = SCAN_VERT;
1289 } else if (lc->tu.cur_intra_pred_mode >= 22 &&
1290 lc->tu.cur_intra_pred_mode <= 30) {
1291 scan_idx = SCAN_HORIZ;
1294 if (lc->pu.intra_pred_mode_c >= 6 &&
1295 lc->pu.intra_pred_mode_c <= 14) {
1296 scan_idx_c = SCAN_VERT;
1297 } else if (lc->pu.intra_pred_mode_c >= 22 &&
1298 lc->pu.intra_pred_mode_c <= 30) {
1299 scan_idx_c = SCAN_HORIZ;
1304 hls_residual_coding(s, x0, y0, log2_trafo_size, scan_idx, 0);
1305 if (log2_trafo_size > 2) {
1307 hls_residual_coding(s, x0, y0, log2_trafo_size - 1, scan_idx_c, 1);
1309 hls_residual_coding(s, x0, y0, log2_trafo_size - 1, scan_idx_c, 2);
1310 } else if (blk_idx == 3) {
1312 hls_residual_coding(s, xBase, yBase, log2_trafo_size, scan_idx_c, 1);
1314 hls_residual_coding(s, xBase, yBase, log2_trafo_size, scan_idx_c, 2);
1320 static void set_deblocking_bypass(HEVCContext *s, int x0, int y0, int log2_cb_size)
1322 int cb_size = 1 << log2_cb_size;
1323 int log2_min_pu_size = s->sps->log2_min_pu_size;
1325 int min_pu_width = s->sps->min_pu_width;
1326 int x_end = FFMIN(x0 + cb_size, s->sps->width);
1327 int y_end = FFMIN(y0 + cb_size, s->sps->height);
1330 for (j = (y0 >> log2_min_pu_size); j < (y_end >> log2_min_pu_size); j++)
1331 for (i = (x0 >> log2_min_pu_size); i < (x_end >> log2_min_pu_size); i++)
1332 s->is_pcm[i + j * min_pu_width] = 2;
1335 static int hls_transform_tree(HEVCContext *s, int x0, int y0,
1336 int xBase, int yBase, int cb_xBase, int cb_yBase,
1337 int log2_cb_size, int log2_trafo_size,
1338 int trafo_depth, int blk_idx,
1339 int cbf_cb, int cbf_cr)
1341 HEVCLocalContext *lc = &s->HEVClc;
1342 uint8_t split_transform_flag;
1345 if (lc->cu.intra_split_flag) {
1346 if (trafo_depth == 1)
1347 lc->tu.cur_intra_pred_mode = lc->pu.intra_pred_mode[blk_idx];
1349 lc->tu.cur_intra_pred_mode = lc->pu.intra_pred_mode[0];
1352 if (log2_trafo_size <= s->sps->log2_max_trafo_size &&
1353 log2_trafo_size > s->sps->log2_min_tb_size &&
1354 trafo_depth < lc->cu.max_trafo_depth &&
1355 !(lc->cu.intra_split_flag && trafo_depth == 0)) {
1356 split_transform_flag = ff_hevc_split_transform_flag_decode(s, log2_trafo_size);
1358 int inter_split = s->sps->max_transform_hierarchy_depth_inter == 0 &&
1359 lc->cu.pred_mode == MODE_INTER &&
1360 lc->cu.part_mode != PART_2Nx2N &&
1363 split_transform_flag = log2_trafo_size > s->sps->log2_max_trafo_size ||
1364 (lc->cu.intra_split_flag && trafo_depth == 0) ||
1368 if (log2_trafo_size > 2 && (trafo_depth == 0 || cbf_cb))
1369 cbf_cb = ff_hevc_cbf_cb_cr_decode(s, trafo_depth);
1370 else if (log2_trafo_size > 2 || trafo_depth == 0)
1372 if (log2_trafo_size > 2 && (trafo_depth == 0 || cbf_cr))
1373 cbf_cr = ff_hevc_cbf_cb_cr_decode(s, trafo_depth);
1374 else if (log2_trafo_size > 2 || trafo_depth == 0)
1377 if (split_transform_flag) {
1378 const int trafo_size_split = 1 << (log2_trafo_size - 1);
1379 const int x1 = x0 + trafo_size_split;
1380 const int y1 = y0 + trafo_size_split;
1382 #define SUBDIVIDE(x, y, idx) \
1384 ret = hls_transform_tree(s, x, y, x0, y0, cb_xBase, cb_yBase, log2_cb_size, \
1385 log2_trafo_size - 1, trafo_depth + 1, idx, \
1391 SUBDIVIDE(x0, y0, 0);
1392 SUBDIVIDE(x1, y0, 1);
1393 SUBDIVIDE(x0, y1, 2);
1394 SUBDIVIDE(x1, y1, 3);
1398 int min_tu_size = 1 << s->sps->log2_min_tb_size;
1399 int log2_min_tu_size = s->sps->log2_min_tb_size;
1400 int min_tu_width = s->sps->min_tb_width;
1403 if (lc->cu.pred_mode == MODE_INTRA || trafo_depth != 0 ||
1405 cbf_luma = ff_hevc_cbf_luma_decode(s, trafo_depth);
1407 ret = hls_transform_unit(s, x0, y0, xBase, yBase, cb_xBase, cb_yBase,
1408 log2_cb_size, log2_trafo_size, trafo_depth,
1409 blk_idx, cbf_luma, cbf_cb, cbf_cr);
1412 // TODO: store cbf_luma somewhere else
1415 for (i = 0; i < (1 << log2_trafo_size); i += min_tu_size)
1416 for (j = 0; j < (1 << log2_trafo_size); j += min_tu_size) {
1417 int x_tu = (x0 + j) >> log2_min_tu_size;
1418 int y_tu = (y0 + i) >> log2_min_tu_size;
1419 s->cbf_luma[y_tu * min_tu_width + x_tu] = 1;
1422 if (!s->sh.disable_deblocking_filter_flag) {
1423 ff_hevc_deblocking_boundary_strengths(s, x0, y0, log2_trafo_size);
1424 if (s->pps->transquant_bypass_enable_flag &&
1425 lc->cu.cu_transquant_bypass_flag)
1426 set_deblocking_bypass(s, x0, y0, log2_trafo_size);
1432 static int hls_pcm_sample(HEVCContext *s, int x0, int y0, int log2_cb_size)
1434 //TODO: non-4:2:0 support
1435 HEVCLocalContext *lc = &s->HEVClc;
1437 int cb_size = 1 << log2_cb_size;
1438 int stride0 = s->frame->linesize[0];
1439 uint8_t *dst0 = &s->frame->data[0][y0 * stride0 + (x0 << s->sps->pixel_shift)];
1440 int stride1 = s->frame->linesize[1];
1441 uint8_t *dst1 = &s->frame->data[1][(y0 >> s->sps->vshift[1]) * stride1 + ((x0 >> s->sps->hshift[1]) << s->sps->pixel_shift)];
1442 int stride2 = s->frame->linesize[2];
1443 uint8_t *dst2 = &s->frame->data[2][(y0 >> s->sps->vshift[2]) * stride2 + ((x0 >> s->sps->hshift[2]) << s->sps->pixel_shift)];
1445 int length = cb_size * cb_size * s->sps->pcm.bit_depth + ((cb_size * cb_size) >> 1) * s->sps->pcm.bit_depth_chroma;
1446 const uint8_t *pcm = skip_bytes(&lc->cc, (length + 7) >> 3);
1449 if (!s->sh.disable_deblocking_filter_flag)
1450 ff_hevc_deblocking_boundary_strengths(s, x0, y0, log2_cb_size);
1452 ret = init_get_bits(&gb, pcm, length);
1456 s->hevcdsp.put_pcm(dst0, stride0, cb_size, &gb, s->sps->pcm.bit_depth);
1457 s->hevcdsp.put_pcm(dst1, stride1, cb_size / 2, &gb, s->sps->pcm.bit_depth_chroma);
1458 s->hevcdsp.put_pcm(dst2, stride2, cb_size / 2, &gb, s->sps->pcm.bit_depth_chroma);
1462 static void hls_mvd_coding(HEVCContext *s, int x0, int y0, int log2_cb_size)
1464 HEVCLocalContext *lc = &s->HEVClc;
1465 int x = ff_hevc_abs_mvd_greater0_flag_decode(s);
1466 int y = ff_hevc_abs_mvd_greater0_flag_decode(s);
1469 x += ff_hevc_abs_mvd_greater1_flag_decode(s);
1471 y += ff_hevc_abs_mvd_greater1_flag_decode(s);
1474 case 2: lc->pu.mvd.x = ff_hevc_mvd_decode(s); break;
1475 case 1: lc->pu.mvd.x = ff_hevc_mvd_sign_flag_decode(s); break;
1476 case 0: lc->pu.mvd.x = 0; break;
1480 case 2: lc->pu.mvd.y = ff_hevc_mvd_decode(s); break;
1481 case 1: lc->pu.mvd.y = ff_hevc_mvd_sign_flag_decode(s); break;
1482 case 0: lc->pu.mvd.y = 0; break;
1487 * 8.5.3.2.2.1 Luma sample interpolation process
1489 * @param s HEVC decoding context
1490 * @param dst target buffer for block data at block position
1491 * @param dststride stride of the dst buffer
1492 * @param ref reference picture buffer at origin (0, 0)
1493 * @param mv motion vector (relative to block position) to get pixel data from
1494 * @param x_off horizontal position of block from origin (0, 0)
1495 * @param y_off vertical position of block from origin (0, 0)
1496 * @param block_w width of block
1497 * @param block_h height of block
1499 static void luma_mc(HEVCContext *s, int16_t *dst, ptrdiff_t dststride,
1500 AVFrame *ref, const Mv *mv, int x_off, int y_off,
1501 int block_w, int block_h)
1503 HEVCLocalContext *lc = &s->HEVClc;
1504 uint8_t *src = ref->data[0];
1505 ptrdiff_t srcstride = ref->linesize[0];
1506 int pic_width = s->sps->width;
1507 int pic_height = s->sps->height;
1511 int extra_left = ff_hevc_qpel_extra_before[mx];
1512 int extra_top = ff_hevc_qpel_extra_before[my];
1514 x_off += mv->x >> 2;
1515 y_off += mv->y >> 2;
1516 src += y_off * srcstride + (x_off << s->sps->pixel_shift);
1518 if (x_off < extra_left || y_off < extra_top ||
1519 x_off >= pic_width - block_w - ff_hevc_qpel_extra_after[mx] ||
1520 y_off >= pic_height - block_h - ff_hevc_qpel_extra_after[my]) {
1521 const int edge_emu_stride = EDGE_EMU_BUFFER_STRIDE << s->sps->pixel_shift;
1522 int offset = extra_top * srcstride + (extra_left << s->sps->pixel_shift);
1523 int buf_offset = extra_top *
1524 edge_emu_stride + (extra_left << s->sps->pixel_shift);
1526 s->vdsp.emulated_edge_mc(lc->edge_emu_buffer, src - offset,
1527 edge_emu_stride, srcstride,
1528 block_w + ff_hevc_qpel_extra[mx],
1529 block_h + ff_hevc_qpel_extra[my],
1530 x_off - extra_left, y_off - extra_top,
1531 pic_width, pic_height);
1532 src = lc->edge_emu_buffer + buf_offset;
1533 srcstride = edge_emu_stride;
1535 s->hevcdsp.put_hevc_qpel[my][mx](dst, dststride, src, srcstride, block_w,
1536 block_h, lc->mc_buffer);
1540 * 8.5.3.2.2.2 Chroma sample interpolation process
1542 * @param s HEVC decoding context
1543 * @param dst1 target buffer for block data at block position (U plane)
1544 * @param dst2 target buffer for block data at block position (V plane)
1545 * @param dststride stride of the dst1 and dst2 buffers
1546 * @param ref reference picture buffer at origin (0, 0)
1547 * @param mv motion vector (relative to block position) to get pixel data from
1548 * @param x_off horizontal position of block from origin (0, 0)
1549 * @param y_off vertical position of block from origin (0, 0)
1550 * @param block_w width of block
1551 * @param block_h height of block
1553 static void chroma_mc(HEVCContext *s, int16_t *dst1, int16_t *dst2,
1554 ptrdiff_t dststride, AVFrame *ref, const Mv *mv,
1555 int x_off, int y_off, int block_w, int block_h)
1557 HEVCLocalContext *lc = &s->HEVClc;
1558 uint8_t *src1 = ref->data[1];
1559 uint8_t *src2 = ref->data[2];
1560 ptrdiff_t src1stride = ref->linesize[1];
1561 ptrdiff_t src2stride = ref->linesize[2];
1562 int pic_width = s->sps->width >> 1;
1563 int pic_height = s->sps->height >> 1;
1568 x_off += mv->x >> 3;
1569 y_off += mv->y >> 3;
1570 src1 += y_off * src1stride + (x_off << s->sps->pixel_shift);
1571 src2 += y_off * src2stride + (x_off << s->sps->pixel_shift);
1573 if (x_off < EPEL_EXTRA_BEFORE || y_off < EPEL_EXTRA_AFTER ||
1574 x_off >= pic_width - block_w - EPEL_EXTRA_AFTER ||
1575 y_off >= pic_height - block_h - EPEL_EXTRA_AFTER) {
1576 const int edge_emu_stride = EDGE_EMU_BUFFER_STRIDE << s->sps->pixel_shift;
1577 int offset1 = EPEL_EXTRA_BEFORE * (src1stride + (1 << s->sps->pixel_shift));
1578 int buf_offset1 = EPEL_EXTRA_BEFORE *
1579 (edge_emu_stride + (1 << s->sps->pixel_shift));
1580 int offset2 = EPEL_EXTRA_BEFORE * (src2stride + (1 << s->sps->pixel_shift));
1581 int buf_offset2 = EPEL_EXTRA_BEFORE *
1582 (edge_emu_stride + (1 << s->sps->pixel_shift));
1584 s->vdsp.emulated_edge_mc(lc->edge_emu_buffer, src1 - offset1,
1585 edge_emu_stride, src1stride,
1586 block_w + EPEL_EXTRA, block_h + EPEL_EXTRA,
1587 x_off - EPEL_EXTRA_BEFORE,
1588 y_off - EPEL_EXTRA_BEFORE,
1589 pic_width, pic_height);
1591 src1 = lc->edge_emu_buffer + buf_offset1;
1592 src1stride = edge_emu_stride;
1593 s->hevcdsp.put_hevc_epel[!!my][!!mx](dst1, dststride, src1, src1stride,
1594 block_w, block_h, mx, my, lc->mc_buffer);
1596 s->vdsp.emulated_edge_mc(lc->edge_emu_buffer, src2 - offset2,
1597 edge_emu_stride, src2stride,
1598 block_w + EPEL_EXTRA, block_h + EPEL_EXTRA,
1599 x_off - EPEL_EXTRA_BEFORE,
1600 y_off - EPEL_EXTRA_BEFORE,
1601 pic_width, pic_height);
1602 src2 = lc->edge_emu_buffer + buf_offset2;
1603 src2stride = edge_emu_stride;
1605 s->hevcdsp.put_hevc_epel[!!my][!!mx](dst2, dststride, src2, src2stride,
1606 block_w, block_h, mx, my,
1609 s->hevcdsp.put_hevc_epel[!!my][!!mx](dst1, dststride, src1, src1stride,
1610 block_w, block_h, mx, my,
1612 s->hevcdsp.put_hevc_epel[!!my][!!mx](dst2, dststride, src2, src2stride,
1613 block_w, block_h, mx, my,
1618 static void hevc_await_progress(HEVCContext *s, HEVCFrame *ref,
1619 const Mv *mv, int y0, int height)
1621 int y = (mv->y >> 2) + y0 + height + 9;
1622 ff_thread_await_progress(&ref->tf, y, 0);
1625 static void hls_prediction_unit(HEVCContext *s, int x0, int y0,
1627 int log2_cb_size, int partIdx)
1629 #define POS(c_idx, x, y) \
1630 &s->frame->data[c_idx][((y) >> s->sps->vshift[c_idx]) * s->frame->linesize[c_idx] + \
1631 (((x) >> s->sps->hshift[c_idx]) << s->sps->pixel_shift)]
1632 HEVCLocalContext *lc = &s->HEVClc;
1634 struct MvField current_mv = {{{ 0 }}};
1636 int min_pu_width = s->sps->min_pu_width;
1638 MvField *tab_mvf = s->ref->tab_mvf;
1639 RefPicList *refPicList = s->ref->refPicList;
1640 HEVCFrame *ref0, *ref1;
1642 int tmpstride = MAX_PB_SIZE;
1644 uint8_t *dst0 = POS(0, x0, y0);
1645 uint8_t *dst1 = POS(1, x0, y0);
1646 uint8_t *dst2 = POS(2, x0, y0);
1647 int log2_min_cb_size = s->sps->log2_min_cb_size;
1648 int min_cb_width = s->sps->min_cb_width;
1649 int x_cb = x0 >> log2_min_cb_size;
1650 int y_cb = y0 >> log2_min_cb_size;
1656 if (SAMPLE_CTB(s->skip_flag, x_cb, y_cb)) {
1657 if (s->sh.max_num_merge_cand > 1)
1658 merge_idx = ff_hevc_merge_idx_decode(s);
1662 ff_hevc_luma_mv_merge_mode(s, x0, y0,
1665 log2_cb_size, partIdx,
1666 merge_idx, ¤t_mv);
1667 x_pu = x0 >> s->sps->log2_min_pu_size;
1668 y_pu = y0 >> s->sps->log2_min_pu_size;
1670 for (j = 0; j < nPbH >> s->sps->log2_min_pu_size; j++)
1671 for (i = 0; i < nPbW >> s->sps->log2_min_pu_size; i++)
1672 tab_mvf[(y_pu + j) * min_pu_width + x_pu + i] = current_mv;
1673 } else { /* MODE_INTER */
1674 lc->pu.merge_flag = ff_hevc_merge_flag_decode(s);
1675 if (lc->pu.merge_flag) {
1676 if (s->sh.max_num_merge_cand > 1)
1677 merge_idx = ff_hevc_merge_idx_decode(s);
1681 ff_hevc_luma_mv_merge_mode(s, x0, y0, nPbW, nPbH, log2_cb_size,
1682 partIdx, merge_idx, ¤t_mv);
1683 x_pu = x0 >> s->sps->log2_min_pu_size;
1684 y_pu = y0 >> s->sps->log2_min_pu_size;
1686 for (j = 0; j < nPbH >> s->sps->log2_min_pu_size; j++)
1687 for (i = 0; i < nPbW >> s->sps->log2_min_pu_size; i++)
1688 tab_mvf[(y_pu + j) * min_pu_width + x_pu + i] = current_mv;
1690 enum InterPredIdc inter_pred_idc = PRED_L0;
1691 ff_hevc_set_neighbour_available(s, x0, y0, nPbW, nPbH);
1692 if (s->sh.slice_type == B_SLICE)
1693 inter_pred_idc = ff_hevc_inter_pred_idc_decode(s, nPbW, nPbH);
1695 if (inter_pred_idc != PRED_L1) {
1696 if (s->sh.nb_refs[L0]) {
1697 ref_idx[0] = ff_hevc_ref_idx_lx_decode(s, s->sh.nb_refs[L0]);
1698 current_mv.ref_idx[0] = ref_idx[0];
1700 current_mv.pred_flag[0] = 1;
1701 hls_mvd_coding(s, x0, y0, 0);
1702 mvp_flag[0] = ff_hevc_mvp_lx_flag_decode(s);
1703 ff_hevc_luma_mv_mvp_mode(s, x0, y0, nPbW, nPbH, log2_cb_size,
1704 partIdx, merge_idx, ¤t_mv,
1706 current_mv.mv[0].x += lc->pu.mvd.x;
1707 current_mv.mv[0].y += lc->pu.mvd.y;
1710 if (inter_pred_idc != PRED_L0) {
1711 if (s->sh.nb_refs[L1]) {
1712 ref_idx[1] = ff_hevc_ref_idx_lx_decode(s, s->sh.nb_refs[L1]);
1713 current_mv.ref_idx[1] = ref_idx[1];
1716 if (s->sh.mvd_l1_zero_flag == 1 && inter_pred_idc == PRED_BI) {
1717 AV_ZERO32(&lc->pu.mvd);
1719 hls_mvd_coding(s, x0, y0, 1);
1722 current_mv.pred_flag[1] = 1;
1723 mvp_flag[1] = ff_hevc_mvp_lx_flag_decode(s);
1724 ff_hevc_luma_mv_mvp_mode(s, x0, y0, nPbW, nPbH, log2_cb_size,
1725 partIdx, merge_idx, ¤t_mv,
1727 current_mv.mv[1].x += lc->pu.mvd.x;
1728 current_mv.mv[1].y += lc->pu.mvd.y;
1731 x_pu = x0 >> s->sps->log2_min_pu_size;
1732 y_pu = y0 >> s->sps->log2_min_pu_size;
1734 for(j = 0; j < nPbH >> s->sps->log2_min_pu_size; j++)
1735 for (i = 0; i < nPbW >> s->sps->log2_min_pu_size; i++)
1736 tab_mvf[(y_pu + j) * min_pu_width + x_pu + i] = current_mv;
1740 if (current_mv.pred_flag[0]) {
1741 ref0 = refPicList[0].ref[current_mv.ref_idx[0]];
1744 hevc_await_progress(s, ref0, ¤t_mv.mv[0], y0, nPbH);
1746 if (current_mv.pred_flag[1]) {
1747 ref1 = refPicList[1].ref[current_mv.ref_idx[1]];
1750 hevc_await_progress(s, ref1, ¤t_mv.mv[1], y0, nPbH);
1753 if (current_mv.pred_flag[0] && !current_mv.pred_flag[1]) {
1754 DECLARE_ALIGNED(16, int16_t, tmp[MAX_PB_SIZE * MAX_PB_SIZE]);
1755 DECLARE_ALIGNED(16, int16_t, tmp2[MAX_PB_SIZE * MAX_PB_SIZE]);
1757 luma_mc(s, tmp, tmpstride, ref0->frame,
1758 ¤t_mv.mv[0], x0, y0, nPbW, nPbH);
1760 if ((s->sh.slice_type == P_SLICE && s->pps->weighted_pred_flag) ||
1761 (s->sh.slice_type == B_SLICE && s->pps->weighted_bipred_flag)) {
1762 s->hevcdsp.weighted_pred(s->sh.luma_log2_weight_denom,
1763 s->sh.luma_weight_l0[current_mv.ref_idx[0]],
1764 s->sh.luma_offset_l0[current_mv.ref_idx[0]],
1765 dst0, s->frame->linesize[0], tmp,
1766 tmpstride, nPbW, nPbH);
1768 s->hevcdsp.put_unweighted_pred(dst0, s->frame->linesize[0], tmp, tmpstride, nPbW, nPbH);
1770 chroma_mc(s, tmp, tmp2, tmpstride, ref0->frame,
1771 ¤t_mv.mv[0], x0 / 2, y0 / 2, nPbW / 2, nPbH / 2);
1773 if ((s->sh.slice_type == P_SLICE && s->pps->weighted_pred_flag) ||
1774 (s->sh.slice_type == B_SLICE && s->pps->weighted_bipred_flag)) {
1775 s->hevcdsp.weighted_pred(s->sh.chroma_log2_weight_denom,
1776 s->sh.chroma_weight_l0[current_mv.ref_idx[0]][0],
1777 s->sh.chroma_offset_l0[current_mv.ref_idx[0]][0],
1778 dst1, s->frame->linesize[1], tmp, tmpstride,
1779 nPbW / 2, nPbH / 2);
1780 s->hevcdsp.weighted_pred(s->sh.chroma_log2_weight_denom,
1781 s->sh.chroma_weight_l0[current_mv.ref_idx[0]][1],
1782 s->sh.chroma_offset_l0[current_mv.ref_idx[0]][1],
1783 dst2, s->frame->linesize[2], tmp2, tmpstride,
1784 nPbW / 2, nPbH / 2);
1786 s->hevcdsp.put_unweighted_pred(dst1, s->frame->linesize[1], tmp, tmpstride, nPbW/2, nPbH/2);
1787 s->hevcdsp.put_unweighted_pred(dst2, s->frame->linesize[2], tmp2, tmpstride, nPbW/2, nPbH/2);
1789 } else if (!current_mv.pred_flag[0] && current_mv.pred_flag[1]) {
1790 DECLARE_ALIGNED(16, int16_t, tmp [MAX_PB_SIZE * MAX_PB_SIZE]);
1791 DECLARE_ALIGNED(16, int16_t, tmp2[MAX_PB_SIZE * MAX_PB_SIZE]);
1796 luma_mc(s, tmp, tmpstride, ref1->frame,
1797 ¤t_mv.mv[1], x0, y0, nPbW, nPbH);
1799 if ((s->sh.slice_type == P_SLICE && s->pps->weighted_pred_flag) ||
1800 (s->sh.slice_type == B_SLICE && s->pps->weighted_bipred_flag)) {
1801 s->hevcdsp.weighted_pred(s->sh.luma_log2_weight_denom,
1802 s->sh.luma_weight_l1[current_mv.ref_idx[1]],
1803 s->sh.luma_offset_l1[current_mv.ref_idx[1]],
1804 dst0, s->frame->linesize[0], tmp, tmpstride,
1807 s->hevcdsp.put_unweighted_pred(dst0, s->frame->linesize[0], tmp, tmpstride, nPbW, nPbH);
1810 chroma_mc(s, tmp, tmp2, tmpstride, ref1->frame,
1811 ¤t_mv.mv[1], x0/2, y0/2, nPbW/2, nPbH/2);
1813 if ((s->sh.slice_type == P_SLICE && s->pps->weighted_pred_flag) ||
1814 (s->sh.slice_type == B_SLICE && s->pps->weighted_bipred_flag)) {
1815 s->hevcdsp.weighted_pred(s->sh.chroma_log2_weight_denom,
1816 s->sh.chroma_weight_l1[current_mv.ref_idx[1]][0],
1817 s->sh.chroma_offset_l1[current_mv.ref_idx[1]][0],
1818 dst1, s->frame->linesize[1], tmp, tmpstride, nPbW/2, nPbH/2);
1819 s->hevcdsp.weighted_pred(s->sh.chroma_log2_weight_denom,
1820 s->sh.chroma_weight_l1[current_mv.ref_idx[1]][1],
1821 s->sh.chroma_offset_l1[current_mv.ref_idx[1]][1],
1822 dst2, s->frame->linesize[2], tmp2, tmpstride, nPbW/2, nPbH/2);
1824 s->hevcdsp.put_unweighted_pred(dst1, s->frame->linesize[1], tmp, tmpstride, nPbW/2, nPbH/2);
1825 s->hevcdsp.put_unweighted_pred(dst2, s->frame->linesize[2], tmp2, tmpstride, nPbW/2, nPbH/2);
1827 } else if (current_mv.pred_flag[0] && current_mv.pred_flag[1]) {
1828 DECLARE_ALIGNED(16, int16_t, tmp [MAX_PB_SIZE * MAX_PB_SIZE]);
1829 DECLARE_ALIGNED(16, int16_t, tmp2[MAX_PB_SIZE * MAX_PB_SIZE]);
1830 DECLARE_ALIGNED(16, int16_t, tmp3[MAX_PB_SIZE * MAX_PB_SIZE]);
1831 DECLARE_ALIGNED(16, int16_t, tmp4[MAX_PB_SIZE * MAX_PB_SIZE]);
1832 HEVCFrame *ref0 = refPicList[0].ref[current_mv.ref_idx[0]];
1833 HEVCFrame *ref1 = refPicList[1].ref[current_mv.ref_idx[1]];
1838 luma_mc(s, tmp, tmpstride, ref0->frame,
1839 ¤t_mv.mv[0], x0, y0, nPbW, nPbH);
1840 luma_mc(s, tmp2, tmpstride, ref1->frame,
1841 ¤t_mv.mv[1], x0, y0, nPbW, nPbH);
1843 if ((s->sh.slice_type == P_SLICE && s->pps->weighted_pred_flag) ||
1844 (s->sh.slice_type == B_SLICE && s->pps->weighted_bipred_flag)) {
1845 s->hevcdsp.weighted_pred_avg(s->sh.luma_log2_weight_denom,
1846 s->sh.luma_weight_l0[current_mv.ref_idx[0]],
1847 s->sh.luma_weight_l1[current_mv.ref_idx[1]],
1848 s->sh.luma_offset_l0[current_mv.ref_idx[0]],
1849 s->sh.luma_offset_l1[current_mv.ref_idx[1]],
1850 dst0, s->frame->linesize[0],
1851 tmp, tmp2, tmpstride, nPbW, nPbH);
1853 s->hevcdsp.put_weighted_pred_avg(dst0, s->frame->linesize[0],
1854 tmp, tmp2, tmpstride, nPbW, nPbH);
1857 chroma_mc(s, tmp, tmp2, tmpstride, ref0->frame,
1858 ¤t_mv.mv[0], x0 / 2, y0 / 2, nPbW / 2, nPbH / 2);
1859 chroma_mc(s, tmp3, tmp4, tmpstride, ref1->frame,
1860 ¤t_mv.mv[1], x0 / 2, y0 / 2, nPbW / 2, nPbH / 2);
1862 if ((s->sh.slice_type == P_SLICE && s->pps->weighted_pred_flag) ||
1863 (s->sh.slice_type == B_SLICE && s->pps->weighted_bipred_flag)) {
1864 s->hevcdsp.weighted_pred_avg(s->sh.chroma_log2_weight_denom,
1865 s->sh.chroma_weight_l0[current_mv.ref_idx[0]][0],
1866 s->sh.chroma_weight_l1[current_mv.ref_idx[1]][0],
1867 s->sh.chroma_offset_l0[current_mv.ref_idx[0]][0],
1868 s->sh.chroma_offset_l1[current_mv.ref_idx[1]][0],
1869 dst1, s->frame->linesize[1], tmp, tmp3,
1870 tmpstride, nPbW / 2, nPbH / 2);
1871 s->hevcdsp.weighted_pred_avg(s->sh.chroma_log2_weight_denom,
1872 s->sh.chroma_weight_l0[current_mv.ref_idx[0]][1],
1873 s->sh.chroma_weight_l1[current_mv.ref_idx[1]][1],
1874 s->sh.chroma_offset_l0[current_mv.ref_idx[0]][1],
1875 s->sh.chroma_offset_l1[current_mv.ref_idx[1]][1],
1876 dst2, s->frame->linesize[2], tmp2, tmp4,
1877 tmpstride, nPbW / 2, nPbH / 2);
1879 s->hevcdsp.put_weighted_pred_avg(dst1, s->frame->linesize[1], tmp, tmp3, tmpstride, nPbW/2, nPbH/2);
1880 s->hevcdsp.put_weighted_pred_avg(dst2, s->frame->linesize[2], tmp2, tmp4, tmpstride, nPbW/2, nPbH/2);
1888 static int luma_intra_pred_mode(HEVCContext *s, int x0, int y0, int pu_size,
1889 int prev_intra_luma_pred_flag)
1891 HEVCLocalContext *lc = &s->HEVClc;
1892 int x_pu = x0 >> s->sps->log2_min_pu_size;
1893 int y_pu = y0 >> s->sps->log2_min_pu_size;
1894 int min_pu_width = s->sps->min_pu_width;
1895 int size_in_pus = pu_size >> s->sps->log2_min_pu_size;
1896 int x0b = x0 & ((1 << s->sps->log2_ctb_size) - 1);
1897 int y0b = y0 & ((1 << s->sps->log2_ctb_size) - 1);
1899 int cand_up = (lc->ctb_up_flag || y0b) ?
1900 s->tab_ipm[(y_pu - 1) * min_pu_width + x_pu] : INTRA_DC;
1901 int cand_left = (lc->ctb_left_flag || x0b) ?
1902 s->tab_ipm[y_pu * min_pu_width + x_pu - 1] : INTRA_DC;
1904 int y_ctb = (y0 >> (s->sps->log2_ctb_size)) << (s->sps->log2_ctb_size);
1906 MvField *tab_mvf = s->ref->tab_mvf;
1907 int intra_pred_mode;
1911 // intra_pred_mode prediction does not cross vertical CTB boundaries
1912 if ((y0 - 1) < y_ctb)
1915 if (cand_left == cand_up) {
1916 if (cand_left < 2) {
1917 candidate[0] = INTRA_PLANAR;
1918 candidate[1] = INTRA_DC;
1919 candidate[2] = INTRA_ANGULAR_26;
1921 candidate[0] = cand_left;
1922 candidate[1] = 2 + ((cand_left - 2 - 1 + 32) & 31);
1923 candidate[2] = 2 + ((cand_left - 2 + 1) & 31);
1926 candidate[0] = cand_left;
1927 candidate[1] = cand_up;
1928 if (candidate[0] != INTRA_PLANAR && candidate[1] != INTRA_PLANAR) {
1929 candidate[2] = INTRA_PLANAR;
1930 } else if (candidate[0] != INTRA_DC && candidate[1] != INTRA_DC) {
1931 candidate[2] = INTRA_DC;
1933 candidate[2] = INTRA_ANGULAR_26;
1937 if (prev_intra_luma_pred_flag) {
1938 intra_pred_mode = candidate[lc->pu.mpm_idx];
1940 if (candidate[0] > candidate[1])
1941 FFSWAP(uint8_t, candidate[0], candidate[1]);
1942 if (candidate[0] > candidate[2])
1943 FFSWAP(uint8_t, candidate[0], candidate[2]);
1944 if (candidate[1] > candidate[2])
1945 FFSWAP(uint8_t, candidate[1], candidate[2]);
1947 intra_pred_mode = lc->pu.rem_intra_luma_pred_mode;
1948 for (i = 0; i < 3; i++)
1949 if (intra_pred_mode >= candidate[i])
1953 /* write the intra prediction units into the mv array */
1956 for (i = 0; i < size_in_pus; i++) {
1957 memset(&s->tab_ipm[(y_pu + i) * min_pu_width + x_pu],
1958 intra_pred_mode, size_in_pus);
1960 for (j = 0; j < size_in_pus; j++) {
1961 tab_mvf[(y_pu + j) * min_pu_width + x_pu + i].is_intra = 1;
1962 tab_mvf[(y_pu + j) * min_pu_width + x_pu + i].pred_flag[0] = 0;
1963 tab_mvf[(y_pu + j) * min_pu_width + x_pu + i].pred_flag[1] = 0;
1964 tab_mvf[(y_pu + j) * min_pu_width + x_pu + i].ref_idx[0] = 0;
1965 tab_mvf[(y_pu + j) * min_pu_width + x_pu + i].ref_idx[1] = 0;
1966 tab_mvf[(y_pu + j) * min_pu_width + x_pu + i].mv[0].x = 0;
1967 tab_mvf[(y_pu + j) * min_pu_width + x_pu + i].mv[0].y = 0;
1968 tab_mvf[(y_pu + j) * min_pu_width + x_pu + i].mv[1].x = 0;
1969 tab_mvf[(y_pu + j) * min_pu_width + x_pu + i].mv[1].y = 0;
1973 return intra_pred_mode;
1976 static av_always_inline void set_ct_depth(HEVCContext *s, int x0, int y0,
1977 int log2_cb_size, int ct_depth)
1979 int length = (1 << log2_cb_size) >> s->sps->log2_min_cb_size;
1980 int x_cb = x0 >> s->sps->log2_min_cb_size;
1981 int y_cb = y0 >> s->sps->log2_min_cb_size;
1984 for (y = 0; y < length; y++)
1985 memset(&s->tab_ct_depth[(y_cb + y) * s->sps->min_cb_width + x_cb],
1989 static void intra_prediction_unit(HEVCContext *s, int x0, int y0,
1992 HEVCLocalContext *lc = &s->HEVClc;
1993 static const uint8_t intra_chroma_table[4] = { 0, 26, 10, 1 };
1994 uint8_t prev_intra_luma_pred_flag[4];
1995 int split = lc->cu.part_mode == PART_NxN;
1996 int pb_size = (1 << log2_cb_size) >> split;
1997 int side = split + 1;
2001 for (i = 0; i < side; i++)
2002 for (j = 0; j < side; j++)
2003 prev_intra_luma_pred_flag[2 * i + j] = ff_hevc_prev_intra_luma_pred_flag_decode(s);
2005 for (i = 0; i < side; i++) {
2006 for (j = 0; j < side; j++) {
2007 if (prev_intra_luma_pred_flag[2 * i + j])
2008 lc->pu.mpm_idx = ff_hevc_mpm_idx_decode(s);
2010 lc->pu.rem_intra_luma_pred_mode = ff_hevc_rem_intra_luma_pred_mode_decode(s);
2012 lc->pu.intra_pred_mode[2 * i + j] =
2013 luma_intra_pred_mode(s, x0 + pb_size * j, y0 + pb_size * i, pb_size,
2014 prev_intra_luma_pred_flag[2 * i + j]);
2018 chroma_mode = ff_hevc_intra_chroma_pred_mode_decode(s);
2019 if (chroma_mode != 4) {
2020 if (lc->pu.intra_pred_mode[0] == intra_chroma_table[chroma_mode])
2021 lc->pu.intra_pred_mode_c = 34;
2023 lc->pu.intra_pred_mode_c = intra_chroma_table[chroma_mode];
2025 lc->pu.intra_pred_mode_c = lc->pu.intra_pred_mode[0];
2029 static void intra_prediction_unit_default_value(HEVCContext *s,
2033 HEVCLocalContext *lc = &s->HEVClc;
2034 int pb_size = 1 << log2_cb_size;
2035 int size_in_pus = pb_size >> s->sps->log2_min_pu_size;
2036 int min_pu_width = s->sps->min_pu_width;
2037 MvField *tab_mvf = s->ref->tab_mvf;
2038 int x_pu = x0 >> s->sps->log2_min_pu_size;
2039 int y_pu = y0 >> s->sps->log2_min_pu_size;
2042 if (size_in_pus == 0)
2044 for (j = 0; j < size_in_pus; j++) {
2045 memset(&s->tab_ipm[(y_pu + j) * min_pu_width + x_pu], INTRA_DC, size_in_pus);
2046 for (k = 0; k < size_in_pus; k++)
2047 tab_mvf[(y_pu + j) * min_pu_width + x_pu + k].is_intra = lc->cu.pred_mode == MODE_INTRA;
2051 static int hls_coding_unit(HEVCContext *s, int x0, int y0, int log2_cb_size)
2053 int cb_size = 1 << log2_cb_size;
2054 HEVCLocalContext *lc = &s->HEVClc;
2055 int log2_min_cb_size = s->sps->log2_min_cb_size;
2056 int length = cb_size >> log2_min_cb_size;
2057 int min_cb_width = s->sps->min_cb_width;
2058 int x_cb = x0 >> log2_min_cb_size;
2059 int y_cb = y0 >> log2_min_cb_size;
2064 lc->cu.rqt_root_cbf = 1;
2065 lc->cu.pred_mode = MODE_INTRA;
2066 lc->cu.part_mode = PART_2Nx2N;
2067 lc->cu.intra_split_flag = 0;
2068 lc->cu.pcm_flag = 0;
2070 SAMPLE_CTB(s->skip_flag, x_cb, y_cb) = 0;
2071 for (x = 0; x < 4; x++)
2072 lc->pu.intra_pred_mode[x] = 1;
2073 if (s->pps->transquant_bypass_enable_flag) {
2074 lc->cu.cu_transquant_bypass_flag = ff_hevc_cu_transquant_bypass_flag_decode(s);
2075 if (lc->cu.cu_transquant_bypass_flag)
2076 set_deblocking_bypass(s, x0, y0, log2_cb_size);
2078 lc->cu.cu_transquant_bypass_flag = 0;
2080 if (s->sh.slice_type != I_SLICE) {
2081 uint8_t skip_flag = ff_hevc_skip_flag_decode(s, x0, y0, x_cb, y_cb);
2083 lc->cu.pred_mode = MODE_SKIP;
2084 x = y_cb * min_cb_width + x_cb;
2085 for (y = 0; y < length; y++) {
2086 memset(&s->skip_flag[x], skip_flag, length);
2089 lc->cu.pred_mode = skip_flag ? MODE_SKIP : MODE_INTER;
2092 if (SAMPLE_CTB(s->skip_flag, x_cb, y_cb)) {
2093 hls_prediction_unit(s, x0, y0, cb_size, cb_size, log2_cb_size, 0);
2094 intra_prediction_unit_default_value(s, x0, y0, log2_cb_size);
2096 if (!s->sh.disable_deblocking_filter_flag)
2097 ff_hevc_deblocking_boundary_strengths(s, x0, y0, log2_cb_size);
2099 if (s->sh.slice_type != I_SLICE)
2100 lc->cu.pred_mode = ff_hevc_pred_mode_decode(s);
2101 if (lc->cu.pred_mode != MODE_INTRA ||
2102 log2_cb_size == s->sps->log2_min_cb_size) {
2103 lc->cu.part_mode = ff_hevc_part_mode_decode(s, log2_cb_size);
2104 lc->cu.intra_split_flag = lc->cu.part_mode == PART_NxN &&
2105 lc->cu.pred_mode == MODE_INTRA;
2108 if (lc->cu.pred_mode == MODE_INTRA) {
2109 if (lc->cu.part_mode == PART_2Nx2N && s->sps->pcm_enabled_flag &&
2110 log2_cb_size >= s->sps->pcm.log2_min_pcm_cb_size &&
2111 log2_cb_size <= s->sps->pcm.log2_max_pcm_cb_size) {
2112 lc->cu.pcm_flag = ff_hevc_pcm_flag_decode(s);
2114 if (lc->cu.pcm_flag) {
2115 intra_prediction_unit_default_value(s, x0, y0, log2_cb_size);
2116 ret = hls_pcm_sample(s, x0, y0, log2_cb_size);
2117 if (s->sps->pcm.loop_filter_disable_flag)
2118 set_deblocking_bypass(s, x0, y0, log2_cb_size);
2123 intra_prediction_unit(s, x0, y0, log2_cb_size);
2126 intra_prediction_unit_default_value(s, x0, y0, log2_cb_size);
2127 switch (lc->cu.part_mode) {
2129 hls_prediction_unit(s, x0, y0, cb_size, cb_size, log2_cb_size, 0);
2132 hls_prediction_unit(s, x0, y0, cb_size, cb_size / 2, log2_cb_size, 0);
2133 hls_prediction_unit(s, x0, y0 + cb_size / 2, cb_size, cb_size / 2, log2_cb_size, 1);
2136 hls_prediction_unit(s, x0, y0, cb_size / 2, cb_size, log2_cb_size, 0);
2137 hls_prediction_unit(s, x0 + cb_size / 2, y0, cb_size / 2, cb_size, log2_cb_size, 1);
2140 hls_prediction_unit(s, x0, y0, cb_size, cb_size / 4, log2_cb_size, 0);
2141 hls_prediction_unit(s, x0, y0 + cb_size / 4, cb_size, cb_size * 3 / 4, log2_cb_size, 1);
2144 hls_prediction_unit(s, x0, y0, cb_size, cb_size * 3 / 4, log2_cb_size, 0);
2145 hls_prediction_unit(s, x0, y0 + cb_size * 3 / 4, cb_size, cb_size / 4, log2_cb_size, 1);
2148 hls_prediction_unit(s, x0, y0, cb_size / 4, cb_size, log2_cb_size, 0);
2149 hls_prediction_unit(s, x0 + cb_size / 4, y0, cb_size * 3 / 4, cb_size, log2_cb_size, 1);
2152 hls_prediction_unit(s, x0, y0, cb_size * 3 / 4, cb_size, log2_cb_size, 0);
2153 hls_prediction_unit(s, x0 + cb_size * 3 / 4, y0, cb_size / 4, cb_size, log2_cb_size, 1);
2156 hls_prediction_unit(s, x0, y0, cb_size / 2, cb_size / 2, log2_cb_size, 0);
2157 hls_prediction_unit(s, x0 + cb_size / 2, y0, cb_size / 2, cb_size / 2, log2_cb_size, 1);
2158 hls_prediction_unit(s, x0, y0 + cb_size / 2, cb_size / 2, cb_size / 2, log2_cb_size, 2);
2159 hls_prediction_unit(s, x0 + cb_size / 2, y0 + cb_size / 2, cb_size / 2, cb_size / 2, log2_cb_size, 3);
2164 if (!lc->cu.pcm_flag) {
2165 if (lc->cu.pred_mode != MODE_INTRA &&
2166 !(lc->cu.part_mode == PART_2Nx2N && lc->pu.merge_flag)) {
2167 lc->cu.rqt_root_cbf = ff_hevc_no_residual_syntax_flag_decode(s);
2169 if (lc->cu.rqt_root_cbf) {
2170 lc->cu.max_trafo_depth = lc->cu.pred_mode == MODE_INTRA ?
2171 s->sps->max_transform_hierarchy_depth_intra + lc->cu.intra_split_flag :
2172 s->sps->max_transform_hierarchy_depth_inter;
2173 ret = hls_transform_tree(s, x0, y0, x0, y0, x0, y0,
2175 log2_cb_size, 0, 0, 0, 0);
2179 if (!s->sh.disable_deblocking_filter_flag)
2180 ff_hevc_deblocking_boundary_strengths(s, x0, y0, log2_cb_size);
2185 if (s->pps->cu_qp_delta_enabled_flag && lc->tu.is_cu_qp_delta_coded == 0)
2186 ff_hevc_set_qPy(s, x0, y0, x0, y0, log2_cb_size);
2188 x = y_cb * min_cb_width + x_cb;
2189 for (y = 0; y < length; y++) {
2190 memset(&s->qp_y_tab[x], lc->qp_y, length);
2194 set_ct_depth(s, x0, y0, log2_cb_size, lc->ct.depth);
2199 static int hls_coding_quadtree(HEVCContext *s, int x0, int y0,
2200 int log2_cb_size, int cb_depth)
2202 HEVCLocalContext *lc = &s->HEVClc;
2203 const int cb_size = 1 << log2_cb_size;
2206 lc->ct.depth = cb_depth;
2207 if (x0 + cb_size <= s->sps->width &&
2208 y0 + cb_size <= s->sps->height &&
2209 log2_cb_size > s->sps->log2_min_cb_size) {
2210 split_cu = ff_hevc_split_coding_unit_flag_decode(s, cb_depth, x0, y0);
2212 split_cu = (log2_cb_size > s->sps->log2_min_cb_size);
2214 if (s->pps->cu_qp_delta_enabled_flag &&
2215 log2_cb_size >= s->sps->log2_ctb_size - s->pps->diff_cu_qp_delta_depth) {
2216 lc->tu.is_cu_qp_delta_coded = 0;
2217 lc->tu.cu_qp_delta = 0;
2221 const int cb_size_split = cb_size >> 1;
2222 const int x1 = x0 + cb_size_split;
2223 const int y1 = y0 + cb_size_split;
2228 #define SUBDIVIDE(x, y) \
2230 if (x < s->sps->width && y < s->sps->height) { \
2231 int ret = hls_coding_quadtree(s, x, y, log2_cb_size, cb_depth);\
2242 int ret = hls_coding_unit(s, x0, y0, log2_cb_size);
2250 static void hls_decode_neighbour(HEVCContext *s, int x_ctb, int y_ctb,
2253 HEVCLocalContext *lc = &s->HEVClc;
2254 int ctb_size = 1 << s->sps->log2_ctb_size;
2255 int ctb_addr_rs = s->pps->ctb_addr_ts_to_rs[ctb_addr_ts];
2256 int ctb_addr_in_slice = ctb_addr_rs - s->sh.slice_addr;
2258 s->tab_slice_address[ctb_addr_rs] = s->sh.slice_addr;
2260 if (s->pps->entropy_coding_sync_enabled_flag) {
2261 if (x_ctb == 0 && (y_ctb & (ctb_size - 1)) == 0)
2262 lc->first_qp_group = 1;
2263 lc->end_of_tiles_x = s->sps->width;
2264 } else if (s->pps->tiles_enabled_flag) {
2265 if (ctb_addr_ts && s->pps->tile_id[ctb_addr_ts] != s->pps->tile_id[ctb_addr_ts - 1]) {
2266 int idxX = s->pps->col_idxX[x_ctb >> s->sps->log2_ctb_size];
2267 lc->start_of_tiles_x = x_ctb;
2268 lc->end_of_tiles_x = x_ctb + (s->pps->column_width[idxX] << s->sps->log2_ctb_size);
2269 lc->first_qp_group = 1;
2272 lc->end_of_tiles_x = s->sps->width;
2275 lc->end_of_tiles_y = FFMIN(y_ctb + ctb_size, s->sps->height);
2277 lc->boundary_flags = 0;
2278 if (s->pps->tiles_enabled_flag) {
2279 if (x_ctb > 0 && s->pps->tile_id[ctb_addr_ts] != s->pps->tile_id[s->pps->ctb_addr_rs_to_ts[ctb_addr_rs - 1]])
2280 lc->boundary_flags |= BOUNDARY_LEFT_TILE;
2281 if (x_ctb > 0 && s->tab_slice_address[ctb_addr_rs] != s->tab_slice_address[ctb_addr_rs - 1])
2282 lc->boundary_flags |= BOUNDARY_LEFT_SLICE;
2283 if (y_ctb > 0 && 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]])
2284 lc->boundary_flags |= BOUNDARY_UPPER_TILE;
2285 if (y_ctb > 0 && s->tab_slice_address[ctb_addr_rs] != s->tab_slice_address[ctb_addr_rs - s->sps->ctb_width])
2286 lc->boundary_flags |= BOUNDARY_UPPER_SLICE;
2288 if (!ctb_addr_in_slice > 0)
2289 lc->boundary_flags |= BOUNDARY_LEFT_SLICE;
2290 if (ctb_addr_in_slice < s->sps->ctb_width)
2291 lc->boundary_flags |= BOUNDARY_UPPER_SLICE;
2294 lc->ctb_left_flag = ((x_ctb > 0) && (ctb_addr_in_slice > 0) && !(lc->boundary_flags & BOUNDARY_LEFT_TILE));
2295 lc->ctb_up_flag = ((y_ctb > 0) && (ctb_addr_in_slice >= s->sps->ctb_width) && !(lc->boundary_flags & BOUNDARY_UPPER_TILE));
2296 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]]));
2297 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]]));
2300 static int hls_slice_data(HEVCContext *s)
2302 int ctb_size = 1 << s->sps->log2_ctb_size;
2306 int ctb_addr_ts = s->pps->ctb_addr_rs_to_ts[s->sh.slice_ctb_addr_rs];
2309 while (more_data && ctb_addr_ts < s->sps->ctb_size) {
2310 int ctb_addr_rs = s->pps->ctb_addr_ts_to_rs[ctb_addr_ts];
2312 x_ctb = (ctb_addr_rs % ((s->sps->width + ctb_size - 1) >> s->sps->log2_ctb_size)) << s->sps->log2_ctb_size;
2313 y_ctb = (ctb_addr_rs / ((s->sps->width + ctb_size - 1) >> s->sps->log2_ctb_size)) << s->sps->log2_ctb_size;
2314 hls_decode_neighbour(s, x_ctb, y_ctb, ctb_addr_ts);
2316 ff_hevc_cabac_init(s, ctb_addr_ts);
2318 hls_sao_param(s, x_ctb >> s->sps->log2_ctb_size, y_ctb >> s->sps->log2_ctb_size);
2320 s->deblock[ctb_addr_rs].beta_offset = s->sh.beta_offset;
2321 s->deblock[ctb_addr_rs].tc_offset = s->sh.tc_offset;
2322 s->filter_slice_edges[ctb_addr_rs] = s->sh.slice_loop_filter_across_slices_enabled_flag;
2324 ret = hls_coding_quadtree(s, x_ctb, y_ctb, s->sps->log2_ctb_size, 0);
2327 more_data = !ff_hevc_end_of_slice_flag_decode(s);
2330 ff_hevc_save_states(s, ctb_addr_ts);
2331 ff_hevc_hls_filters(s, x_ctb, y_ctb, ctb_size);
2334 if (x_ctb + ctb_size >= s->sps->width &&
2335 y_ctb + ctb_size >= s->sps->height)
2336 ff_hevc_hls_filter(s, x_ctb, y_ctb);
2342 * @return AVERROR_INVALIDDATA if the packet is not a valid NAL unit,
2343 * 0 if the unit should be skipped, 1 otherwise
2345 static int hls_nal_unit(HEVCContext *s)
2347 GetBitContext *gb = &s->HEVClc.gb;
2350 if (get_bits1(gb) != 0)
2351 return AVERROR_INVALIDDATA;
2353 s->nal_unit_type = get_bits(gb, 6);
2355 nuh_layer_id = get_bits(gb, 6);
2356 s->temporal_id = get_bits(gb, 3) - 1;
2357 if (s->temporal_id < 0)
2358 return AVERROR_INVALIDDATA;
2360 av_log(s->avctx, AV_LOG_DEBUG,
2361 "nal_unit_type: %d, nuh_layer_id: %dtemporal_id: %d\n",
2362 s->nal_unit_type, nuh_layer_id, s->temporal_id);
2364 return nuh_layer_id == 0;
2367 static void restore_tqb_pixels(HEVCContext *s)
2369 int min_pu_size = 1 << s->sps->log2_min_pu_size;
2372 for (c_idx = 0; c_idx < 3; c_idx++) {
2373 ptrdiff_t stride = s->frame->linesize[c_idx];
2374 int hshift = s->sps->hshift[c_idx];
2375 int vshift = s->sps->vshift[c_idx];
2376 for (y = 0; y < s->sps->min_pu_height; y++) {
2377 for (x = 0; x < s->sps->min_pu_width; x++) {
2378 if (s->is_pcm[y * s->sps->min_pu_width + x]) {
2380 int len = min_pu_size >> hshift;
2381 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)];
2382 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)];
2383 for (n = 0; n < (min_pu_size >> vshift); n++) {
2384 memcpy(dst, src, len);
2394 static int set_side_data(HEVCContext *s)
2396 AVFrame *out = s->ref->frame;
2398 if (s->sei_frame_packing_present &&
2399 s->frame_packing_arrangement_type >= 3 &&
2400 s->frame_packing_arrangement_type <= 5 &&
2401 s->content_interpretation_type > 0 &&
2402 s->content_interpretation_type < 3) {
2403 AVStereo3D *stereo = av_stereo3d_create_side_data(out);
2405 return AVERROR(ENOMEM);
2407 switch (s->frame_packing_arrangement_type) {
2409 if (s->quincunx_subsampling)
2410 stereo->type = AV_STEREO3D_SIDEBYSIDE_QUINCUNX;
2412 stereo->type = AV_STEREO3D_SIDEBYSIDE;
2415 stereo->type = AV_STEREO3D_TOPBOTTOM;
2418 stereo->type = AV_STEREO3D_FRAMESEQUENCE;
2422 if (s->content_interpretation_type == 2)
2423 stereo->flags = AV_STEREO3D_FLAG_INVERT;
2426 if (s->sei_display_orientation_present &&
2427 (s->sei_anticlockwise_rotation || s->sei_hflip || s->sei_vflip)) {
2428 double angle = s->sei_anticlockwise_rotation * 360 / (double) (1 << 16);
2429 AVFrameSideData *rotation = av_frame_new_side_data(out,
2430 AV_FRAME_DATA_DISPLAYMATRIX,
2431 sizeof(int32_t) * 9);
2433 return AVERROR(ENOMEM);
2435 av_display_rotation_set((int32_t *)rotation->data, angle);
2436 av_display_matrix_flip((int32_t *)rotation->data,
2437 s->sei_vflip, s->sei_hflip);
2443 static int hevc_frame_start(HEVCContext *s)
2445 HEVCLocalContext *lc = &s->HEVClc;
2448 memset(s->horizontal_bs, 0, 2 * s->bs_width * (s->bs_height + 1));
2449 memset(s->vertical_bs, 0, 2 * s->bs_width * (s->bs_height + 1));
2450 memset(s->cbf_luma, 0, s->sps->min_tb_width * s->sps->min_tb_height);
2451 memset(s->is_pcm, 0, s->sps->min_pu_width * s->sps->min_pu_height);
2453 lc->start_of_tiles_x = 0;
2455 s->first_nal_type = s->nal_unit_type;
2457 if (s->pps->tiles_enabled_flag)
2458 lc->end_of_tiles_x = s->pps->column_width[0] << s->sps->log2_ctb_size;
2460 ret = ff_hevc_set_new_ref(s, s->sps->sao_enabled ? &s->sao_frame : &s->frame,
2465 ret = ff_hevc_frame_rps(s);
2467 av_log(s->avctx, AV_LOG_ERROR, "Error constructing the frame RPS.\n");
2471 s->ref->frame->key_frame = IS_IRAP(s);
2473 ret = set_side_data(s);
2477 av_frame_unref(s->output_frame);
2478 ret = ff_hevc_output_frame(s, s->output_frame, 0);
2482 ff_thread_finish_setup(s->avctx);
2488 ff_thread_report_progress(&s->ref->tf, INT_MAX, 0);
2493 static int decode_nal_unit(HEVCContext *s, const uint8_t *nal, int length)
2495 HEVCLocalContext *lc = &s->HEVClc;
2496 GetBitContext *gb = &lc->gb;
2497 int ctb_addr_ts, ret;
2499 ret = init_get_bits8(gb, nal, length);
2503 ret = hls_nal_unit(s);
2505 av_log(s->avctx, AV_LOG_ERROR, "Invalid NAL unit %d, skipping.\n",
2511 switch (s->nal_unit_type) {
2513 ret = ff_hevc_decode_nal_vps(s);
2518 ret = ff_hevc_decode_nal_sps(s);
2523 ret = ff_hevc_decode_nal_pps(s);
2527 case NAL_SEI_PREFIX:
2528 case NAL_SEI_SUFFIX:
2529 ret = ff_hevc_decode_nal_sei(s);
2540 case NAL_BLA_W_RADL:
2542 case NAL_IDR_W_RADL:
2549 ret = hls_slice_header(s);
2553 if (s->max_ra == INT_MAX) {
2554 if (s->nal_unit_type == NAL_CRA_NUT || IS_BLA(s)) {
2558 s->max_ra = INT_MIN;
2562 if ((s->nal_unit_type == NAL_RASL_R || s->nal_unit_type == NAL_RASL_N) &&
2563 s->poc <= s->max_ra) {
2567 if (s->nal_unit_type == NAL_RASL_R && s->poc > s->max_ra)
2568 s->max_ra = INT_MIN;
2571 if (s->sh.first_slice_in_pic_flag) {
2572 ret = hevc_frame_start(s);
2575 } else if (!s->ref) {
2576 av_log(s->avctx, AV_LOG_ERROR, "First slice in a frame missing.\n");
2580 if (s->nal_unit_type != s->first_nal_type) {
2581 av_log(s->avctx, AV_LOG_ERROR,
2582 "Non-matching NAL types of the VCL NALUs: %d %d\n",
2583 s->first_nal_type, s->nal_unit_type);
2584 return AVERROR_INVALIDDATA;
2587 if (!s->sh.dependent_slice_segment_flag &&
2588 s->sh.slice_type != I_SLICE) {
2589 ret = ff_hevc_slice_rpl(s);
2591 av_log(s->avctx, AV_LOG_WARNING,
2592 "Error constructing the reference lists for the current slice.\n");
2597 ctb_addr_ts = hls_slice_data(s);
2598 if (ctb_addr_ts >= (s->sps->ctb_width * s->sps->ctb_height)) {
2600 if ((s->pps->transquant_bypass_enable_flag ||
2601 (s->sps->pcm.loop_filter_disable_flag && s->sps->pcm_enabled_flag)) &&
2602 s->sps->sao_enabled)
2603 restore_tqb_pixels(s);
2606 if (ctb_addr_ts < 0) {
2613 s->seq_decode = (s->seq_decode + 1) & 0xff;
2614 s->max_ra = INT_MAX;
2620 av_log(s->avctx, AV_LOG_INFO,
2621 "Skipping NAL unit %d\n", s->nal_unit_type);
2626 if (s->avctx->err_recognition & AV_EF_EXPLODE)
2631 /* FIXME: This is adapted from ff_h264_decode_nal, avoiding duplication
2632 * between these functions would be nice. */
2633 static int extract_rbsp(const uint8_t *src, int length,
2639 #define STARTCODE_TEST \
2640 if (i + 2 < length && src[i + 1] == 0 && src[i + 2] <= 3) { \
2641 if (src[i + 2] != 3) { \
2642 /* startcode, so we must be past the end */ \
2647 #if HAVE_FAST_UNALIGNED
2648 #define FIND_FIRST_ZERO \
2649 if (i > 0 && !src[i]) \
2654 for (i = 0; i + 1 < length; i += 9) {
2655 if (!((~AV_RN64A(src + i) &
2656 (AV_RN64A(src + i) - 0x0100010001000101ULL)) &
2657 0x8000800080008080ULL))
2664 for (i = 0; i + 1 < length; i += 5) {
2665 if (!((~AV_RN32A(src + i) &
2666 (AV_RN32A(src + i) - 0x01000101U)) &
2673 #endif /* HAVE_FAST_64BIT */
2675 for (i = 0; i + 1 < length; i += 2) {
2678 if (i > 0 && src[i - 1] == 0)
2682 #endif /* HAVE_FAST_UNALIGNED */
2684 if (i >= length - 1) { // no escaped 0
2690 av_fast_malloc(&nal->rbsp_buffer, &nal->rbsp_buffer_size,
2691 length + FF_INPUT_BUFFER_PADDING_SIZE);
2692 if (!nal->rbsp_buffer)
2693 return AVERROR(ENOMEM);
2695 dst = nal->rbsp_buffer;
2697 memcpy(dst, src, i);
2699 while (si + 2 < length) {
2700 // remove escapes (very rare 1:2^22)
2701 if (src[si + 2] > 3) {
2702 dst[di++] = src[si++];
2703 dst[di++] = src[si++];
2704 } else if (src[si] == 0 && src[si + 1] == 0) {
2705 if (src[si + 2] == 3) { // escape
2711 } else // next start code
2715 dst[di++] = src[si++];
2718 dst[di++] = src[si++];
2721 memset(dst + di, 0, FF_INPUT_BUFFER_PADDING_SIZE);
2728 static int decode_nal_units(HEVCContext *s, const uint8_t *buf, int length)
2730 int i, consumed, ret = 0;
2735 /* split the input packet into NAL units, so we know the upper bound on the
2736 * number of slices in the frame */
2738 while (length >= 4) {
2740 int extract_length = 0;
2744 for (i = 0; i < s->nal_length_size; i++)
2745 extract_length = (extract_length << 8) | buf[i];
2746 buf += s->nal_length_size;
2747 length -= s->nal_length_size;
2749 if (extract_length > length) {
2750 av_log(s->avctx, AV_LOG_ERROR, "Invalid NAL unit size.\n");
2751 ret = AVERROR_INVALIDDATA;
2760 if (buf[0] != 0 || buf[1] != 0 || buf[2] != 1) {
2761 ret = AVERROR_INVALIDDATA;
2767 extract_length = length;
2770 if (s->nals_allocated < s->nb_nals + 1) {
2771 int new_size = s->nals_allocated + 1;
2772 HEVCNAL *tmp = av_realloc_array(s->nals, new_size, sizeof(*tmp));
2774 ret = AVERROR(ENOMEM);
2778 memset(s->nals + s->nals_allocated, 0,
2779 (new_size - s->nals_allocated) * sizeof(*tmp));
2780 s->nals_allocated = new_size;
2782 nal = &s->nals[s->nb_nals++];
2784 consumed = extract_rbsp(buf, extract_length, nal);
2790 ret = init_get_bits8(&s->HEVClc.gb, nal->data, nal->size);
2795 if (s->nal_unit_type == NAL_EOB_NUT ||
2796 s->nal_unit_type == NAL_EOS_NUT)
2803 /* parse the NAL units */
2804 for (i = 0; i < s->nb_nals; i++) {
2805 int ret = decode_nal_unit(s, s->nals[i].data, s->nals[i].size);
2807 av_log(s->avctx, AV_LOG_WARNING,
2808 "Error parsing NAL unit #%d.\n", i);
2815 ff_thread_report_progress(&s->ref->tf, INT_MAX, 0);
2820 static void print_md5(void *log_ctx, int level, uint8_t md5[16])
2823 for (i = 0; i < 16; i++)
2824 av_log(log_ctx, level, "%02"PRIx8, md5[i]);
2827 static int verify_md5(HEVCContext *s, AVFrame *frame)
2829 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
2834 return AVERROR(EINVAL);
2836 pixel_shift = desc->comp[0].depth_minus1 > 7;
2838 av_log(s->avctx, AV_LOG_DEBUG, "Verifying checksum for frame with POC %d: ",
2841 /* the checksums are LE, so we have to byteswap for >8bpp formats
2844 if (pixel_shift && !s->checksum_buf) {
2845 av_fast_malloc(&s->checksum_buf, &s->checksum_buf_size,
2846 FFMAX3(frame->linesize[0], frame->linesize[1],
2847 frame->linesize[2]));
2848 if (!s->checksum_buf)
2849 return AVERROR(ENOMEM);
2853 for (i = 0; frame->data[i]; i++) {
2854 int width = s->avctx->coded_width;
2855 int height = s->avctx->coded_height;
2856 int w = (i == 1 || i == 2) ? (width >> desc->log2_chroma_w) : width;
2857 int h = (i == 1 || i == 2) ? (height >> desc->log2_chroma_h) : height;
2860 av_md5_init(s->md5_ctx);
2861 for (j = 0; j < h; j++) {
2862 const uint8_t *src = frame->data[i] + j * frame->linesize[i];
2865 s->bdsp.bswap16_buf((uint16_t *) s->checksum_buf,
2866 (const uint16_t *) src, w);
2867 src = s->checksum_buf;
2870 av_md5_update(s->md5_ctx, src, w << pixel_shift);
2872 av_md5_final(s->md5_ctx, md5);
2874 if (!memcmp(md5, s->md5[i], 16)) {
2875 av_log (s->avctx, AV_LOG_DEBUG, "plane %d - correct ", i);
2876 print_md5(s->avctx, AV_LOG_DEBUG, md5);
2877 av_log (s->avctx, AV_LOG_DEBUG, "; ");
2879 av_log (s->avctx, AV_LOG_ERROR, "mismatching checksum of plane %d - ", i);
2880 print_md5(s->avctx, AV_LOG_ERROR, md5);
2881 av_log (s->avctx, AV_LOG_ERROR, " != ");
2882 print_md5(s->avctx, AV_LOG_ERROR, s->md5[i]);
2883 av_log (s->avctx, AV_LOG_ERROR, "\n");
2884 return AVERROR_INVALIDDATA;
2888 av_log(s->avctx, AV_LOG_DEBUG, "\n");
2893 static int hevc_decode_frame(AVCodecContext *avctx, void *data, int *got_output,
2897 HEVCContext *s = avctx->priv_data;
2900 ret = ff_hevc_output_frame(s, data, 1);
2909 ret = decode_nal_units(s, avpkt->data, avpkt->size);
2913 /* verify the SEI checksum */
2914 if (avctx->err_recognition & AV_EF_CRCCHECK && s->is_decoded &&
2916 ret = verify_md5(s, s->ref->frame);
2917 if (ret < 0 && avctx->err_recognition & AV_EF_EXPLODE) {
2918 ff_hevc_unref_frame(s, s->ref, ~0);
2924 if (s->is_decoded) {
2925 av_log(avctx, AV_LOG_DEBUG, "Decoded frame with POC %d.\n", s->poc);
2929 if (s->output_frame->buf[0]) {
2930 av_frame_move_ref(data, s->output_frame);
2937 static int hevc_ref_frame(HEVCContext *s, HEVCFrame *dst, HEVCFrame *src)
2939 int ret = ff_thread_ref_frame(&dst->tf, &src->tf);
2943 dst->tab_mvf_buf = av_buffer_ref(src->tab_mvf_buf);
2944 if (!dst->tab_mvf_buf)
2946 dst->tab_mvf = src->tab_mvf;
2948 dst->rpl_tab_buf = av_buffer_ref(src->rpl_tab_buf);
2949 if (!dst->rpl_tab_buf)
2951 dst->rpl_tab = src->rpl_tab;
2953 dst->rpl_buf = av_buffer_ref(src->rpl_buf);
2957 dst->poc = src->poc;
2958 dst->ctb_count = src->ctb_count;
2959 dst->window = src->window;
2960 dst->flags = src->flags;
2961 dst->sequence = src->sequence;
2965 ff_hevc_unref_frame(s, dst, ~0);
2966 return AVERROR(ENOMEM);
2969 static av_cold int hevc_decode_free(AVCodecContext *avctx)
2971 HEVCContext *s = avctx->priv_data;
2976 av_freep(&s->md5_ctx);
2978 av_frame_free(&s->tmp_frame);
2979 av_frame_free(&s->output_frame);
2981 for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
2982 ff_hevc_unref_frame(s, &s->DPB[i], ~0);
2983 av_frame_free(&s->DPB[i].frame);
2986 for (i = 0; i < FF_ARRAY_ELEMS(s->vps_list); i++)
2987 av_buffer_unref(&s->vps_list[i]);
2988 for (i = 0; i < FF_ARRAY_ELEMS(s->sps_list); i++)
2989 av_buffer_unref(&s->sps_list[i]);
2990 for (i = 0; i < FF_ARRAY_ELEMS(s->pps_list); i++)
2991 av_buffer_unref(&s->pps_list[i]);
2993 for (i = 0; i < s->nals_allocated; i++)
2994 av_freep(&s->nals[i].rbsp_buffer);
2996 s->nals_allocated = 0;
3001 static av_cold int hevc_init_context(AVCodecContext *avctx)
3003 HEVCContext *s = avctx->priv_data;
3008 s->tmp_frame = av_frame_alloc();
3012 s->output_frame = av_frame_alloc();
3013 if (!s->output_frame)
3016 for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
3017 s->DPB[i].frame = av_frame_alloc();
3018 if (!s->DPB[i].frame)
3020 s->DPB[i].tf.f = s->DPB[i].frame;
3023 s->max_ra = INT_MAX;
3025 s->md5_ctx = av_md5_alloc();
3029 ff_bswapdsp_init(&s->bdsp);
3031 s->context_initialized = 1;
3036 hevc_decode_free(avctx);
3037 return AVERROR(ENOMEM);
3040 static int hevc_update_thread_context(AVCodecContext *dst,
3041 const AVCodecContext *src)
3043 HEVCContext *s = dst->priv_data;
3044 HEVCContext *s0 = src->priv_data;
3047 if (!s->context_initialized) {
3048 ret = hevc_init_context(dst);
3053 for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
3054 ff_hevc_unref_frame(s, &s->DPB[i], ~0);
3055 if (s0->DPB[i].frame->buf[0]) {
3056 ret = hevc_ref_frame(s, &s->DPB[i], &s0->DPB[i]);
3062 for (i = 0; i < FF_ARRAY_ELEMS(s->vps_list); i++) {
3063 av_buffer_unref(&s->vps_list[i]);
3064 if (s0->vps_list[i]) {
3065 s->vps_list[i] = av_buffer_ref(s0->vps_list[i]);
3066 if (!s->vps_list[i])
3067 return AVERROR(ENOMEM);
3071 for (i = 0; i < FF_ARRAY_ELEMS(s->sps_list); i++) {
3072 av_buffer_unref(&s->sps_list[i]);
3073 if (s0->sps_list[i]) {
3074 s->sps_list[i] = av_buffer_ref(s0->sps_list[i]);
3075 if (!s->sps_list[i])
3076 return AVERROR(ENOMEM);
3080 for (i = 0; i < FF_ARRAY_ELEMS(s->pps_list); i++) {
3081 av_buffer_unref(&s->pps_list[i]);
3082 if (s0->pps_list[i]) {
3083 s->pps_list[i] = av_buffer_ref(s0->pps_list[i]);
3084 if (!s->pps_list[i])
3085 return AVERROR(ENOMEM);
3089 if (s->sps != s0->sps)
3090 ret = set_sps(s, s0->sps);
3092 s->seq_decode = s0->seq_decode;
3093 s->seq_output = s0->seq_output;
3094 s->pocTid0 = s0->pocTid0;
3095 s->max_ra = s0->max_ra;
3097 s->is_nalff = s0->is_nalff;
3098 s->nal_length_size = s0->nal_length_size;
3101 s->seq_decode = (s->seq_decode + 1) & 0xff;
3102 s->max_ra = INT_MAX;
3108 static int hevc_decode_extradata(HEVCContext *s)
3110 AVCodecContext *avctx = s->avctx;
3114 bytestream2_init(&gb, avctx->extradata, avctx->extradata_size);
3116 if (avctx->extradata_size > 3 &&
3117 (avctx->extradata[0] || avctx->extradata[1] ||
3118 avctx->extradata[2] > 1)) {
3119 /* It seems the extradata is encoded as hvcC format.
3120 * Temporarily, we support configurationVersion==0 until 14496-15 3rd
3121 * is finalized. When finalized, configurationVersion will be 1 and we
3122 * can recognize hvcC by checking if avctx->extradata[0]==1 or not. */
3123 int i, j, num_arrays, nal_len_size;
3127 bytestream2_skip(&gb, 21);
3128 nal_len_size = (bytestream2_get_byte(&gb) & 3) + 1;
3129 num_arrays = bytestream2_get_byte(&gb);
3131 /* nal units in the hvcC always have length coded with 2 bytes,
3132 * so put a fake nal_length_size = 2 while parsing them */
3133 s->nal_length_size = 2;
3135 /* Decode nal units from hvcC. */
3136 for (i = 0; i < num_arrays; i++) {
3137 int type = bytestream2_get_byte(&gb) & 0x3f;
3138 int cnt = bytestream2_get_be16(&gb);
3140 for (j = 0; j < cnt; j++) {
3141 // +2 for the nal size field
3142 int nalsize = bytestream2_peek_be16(&gb) + 2;
3143 if (bytestream2_get_bytes_left(&gb) < nalsize) {
3144 av_log(s->avctx, AV_LOG_ERROR,
3145 "Invalid NAL unit size in extradata.\n");
3146 return AVERROR_INVALIDDATA;
3149 ret = decode_nal_units(s, gb.buffer, nalsize);
3151 av_log(avctx, AV_LOG_ERROR,
3152 "Decoding nal unit %d %d from hvcC failed\n",
3156 bytestream2_skip(&gb, nalsize);
3160 /* Now store right nal length size, that will be used to parse
3162 s->nal_length_size = nal_len_size;
3165 ret = decode_nal_units(s, avctx->extradata, avctx->extradata_size);
3172 static av_cold int hevc_decode_init(AVCodecContext *avctx)
3174 HEVCContext *s = avctx->priv_data;
3177 ff_init_cabac_states();
3179 avctx->internal->allocate_progress = 1;
3181 ret = hevc_init_context(avctx);
3185 if (avctx->extradata_size > 0 && avctx->extradata) {
3186 ret = hevc_decode_extradata(s);
3188 hevc_decode_free(avctx);
3196 static av_cold int hevc_init_thread_copy(AVCodecContext *avctx)
3198 HEVCContext *s = avctx->priv_data;
3201 memset(s, 0, sizeof(*s));
3203 ret = hevc_init_context(avctx);
3210 static void hevc_decode_flush(AVCodecContext *avctx)
3212 HEVCContext *s = avctx->priv_data;
3213 ff_hevc_flush_dpb(s);
3214 s->max_ra = INT_MAX;
3217 #define OFFSET(x) offsetof(HEVCContext, x)
3218 #define PAR (AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
3220 static const AVProfile profiles[] = {
3221 { FF_PROFILE_HEVC_MAIN, "Main" },
3222 { FF_PROFILE_HEVC_MAIN_10, "Main 10" },
3223 { FF_PROFILE_HEVC_MAIN_STILL_PICTURE, "Main Still Picture" },
3224 { FF_PROFILE_UNKNOWN },
3227 static const AVOption options[] = {
3228 { "apply_defdispwin", "Apply default display window from VUI", OFFSET(apply_defdispwin),
3229 AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, PAR },
3233 static const AVClass hevc_decoder_class = {
3234 .class_name = "HEVC decoder",
3235 .item_name = av_default_item_name,
3237 .version = LIBAVUTIL_VERSION_INT,
3240 AVCodec ff_hevc_decoder = {
3242 .long_name = NULL_IF_CONFIG_SMALL("HEVC (High Efficiency Video Coding)"),
3243 .type = AVMEDIA_TYPE_VIDEO,
3244 .id = AV_CODEC_ID_HEVC,
3245 .priv_data_size = sizeof(HEVCContext),
3246 .priv_class = &hevc_decoder_class,
3247 .init = hevc_decode_init,
3248 .close = hevc_decode_free,
3249 .decode = hevc_decode_frame,
3250 .flush = hevc_decode_flush,
3251 .update_thread_context = hevc_update_thread_context,
3252 .init_thread_copy = hevc_init_thread_copy,
3253 .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY |
3254 CODEC_CAP_FRAME_THREADS,
3255 .profiles = NULL_IF_CONFIG_SMALL(profiles),