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 = av_clip_c(get_ue_golomb_long(gb), 0, 7);
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 blk_idx, int cbf_luma, int cbf_cb, int cbf_cr)
1238 HEVCLocalContext *lc = &s->HEVClc;
1240 if (lc->cu.pred_mode == MODE_INTRA) {
1241 int trafo_size = 1 << log2_trafo_size;
1242 ff_hevc_set_neighbour_available(s, x0, y0, trafo_size, trafo_size);
1244 s->hpc.intra_pred[log2_trafo_size - 2](s, x0, y0, 0);
1245 if (log2_trafo_size > 2) {
1246 trafo_size = trafo_size << (s->sps->hshift[1] - 1);
1247 ff_hevc_set_neighbour_available(s, x0, y0, trafo_size, trafo_size);
1248 s->hpc.intra_pred[log2_trafo_size - 3](s, x0, y0, 1);
1249 s->hpc.intra_pred[log2_trafo_size - 3](s, x0, y0, 2);
1250 } else if (blk_idx == 3) {
1251 trafo_size = trafo_size << s->sps->hshift[1];
1252 ff_hevc_set_neighbour_available(s, xBase, yBase,
1253 trafo_size, trafo_size);
1254 s->hpc.intra_pred[log2_trafo_size - 2](s, xBase, yBase, 1);
1255 s->hpc.intra_pred[log2_trafo_size - 2](s, xBase, yBase, 2);
1259 if (cbf_luma || cbf_cb || cbf_cr) {
1260 int scan_idx = SCAN_DIAG;
1261 int scan_idx_c = SCAN_DIAG;
1263 if (s->pps->cu_qp_delta_enabled_flag && !lc->tu.is_cu_qp_delta_coded) {
1264 lc->tu.cu_qp_delta = ff_hevc_cu_qp_delta_abs(s);
1265 if (lc->tu.cu_qp_delta != 0)
1266 if (ff_hevc_cu_qp_delta_sign_flag(s) == 1)
1267 lc->tu.cu_qp_delta = -lc->tu.cu_qp_delta;
1268 lc->tu.is_cu_qp_delta_coded = 1;
1270 if (lc->tu.cu_qp_delta < -(26 + s->sps->qp_bd_offset / 2) ||
1271 lc->tu.cu_qp_delta > (25 + s->sps->qp_bd_offset / 2)) {
1272 av_log(s->avctx, AV_LOG_ERROR,
1273 "The cu_qp_delta %d is outside the valid range "
1276 -(26 + s->sps->qp_bd_offset / 2),
1277 (25 + s->sps->qp_bd_offset / 2));
1278 return AVERROR_INVALIDDATA;
1281 ff_hevc_set_qPy(s, x0, y0, cb_xBase, cb_yBase, log2_cb_size);
1284 if (lc->cu.pred_mode == MODE_INTRA && log2_trafo_size < 4) {
1285 if (lc->tu.cur_intra_pred_mode >= 6 &&
1286 lc->tu.cur_intra_pred_mode <= 14) {
1287 scan_idx = SCAN_VERT;
1288 } else if (lc->tu.cur_intra_pred_mode >= 22 &&
1289 lc->tu.cur_intra_pred_mode <= 30) {
1290 scan_idx = SCAN_HORIZ;
1293 if (lc->pu.intra_pred_mode_c >= 6 &&
1294 lc->pu.intra_pred_mode_c <= 14) {
1295 scan_idx_c = SCAN_VERT;
1296 } else if (lc->pu.intra_pred_mode_c >= 22 &&
1297 lc->pu.intra_pred_mode_c <= 30) {
1298 scan_idx_c = SCAN_HORIZ;
1303 hls_residual_coding(s, x0, y0, log2_trafo_size, scan_idx, 0);
1304 if (log2_trafo_size > 2) {
1306 hls_residual_coding(s, x0, y0, log2_trafo_size - 1, scan_idx_c, 1);
1308 hls_residual_coding(s, x0, y0, log2_trafo_size - 1, scan_idx_c, 2);
1309 } else if (blk_idx == 3) {
1311 hls_residual_coding(s, xBase, yBase, log2_trafo_size, scan_idx_c, 1);
1313 hls_residual_coding(s, xBase, yBase, log2_trafo_size, scan_idx_c, 2);
1319 static void set_deblocking_bypass(HEVCContext *s, int x0, int y0, int log2_cb_size)
1321 int cb_size = 1 << log2_cb_size;
1322 int log2_min_pu_size = s->sps->log2_min_pu_size;
1324 int min_pu_width = s->sps->min_pu_width;
1325 int x_end = FFMIN(x0 + cb_size, s->sps->width);
1326 int y_end = FFMIN(y0 + cb_size, s->sps->height);
1329 for (j = (y0 >> log2_min_pu_size); j < (y_end >> log2_min_pu_size); j++)
1330 for (i = (x0 >> log2_min_pu_size); i < (x_end >> log2_min_pu_size); i++)
1331 s->is_pcm[i + j * min_pu_width] = 2;
1334 static int hls_transform_tree(HEVCContext *s, int x0, int y0,
1335 int xBase, int yBase, int cb_xBase, int cb_yBase,
1336 int log2_cb_size, int log2_trafo_size,
1337 int trafo_depth, int blk_idx,
1338 int cbf_cb, int cbf_cr)
1340 HEVCLocalContext *lc = &s->HEVClc;
1341 uint8_t split_transform_flag;
1344 if (lc->cu.intra_split_flag) {
1345 if (trafo_depth == 1)
1346 lc->tu.cur_intra_pred_mode = lc->pu.intra_pred_mode[blk_idx];
1348 lc->tu.cur_intra_pred_mode = lc->pu.intra_pred_mode[0];
1351 if (log2_trafo_size <= s->sps->log2_max_trafo_size &&
1352 log2_trafo_size > s->sps->log2_min_tb_size &&
1353 trafo_depth < lc->cu.max_trafo_depth &&
1354 !(lc->cu.intra_split_flag && trafo_depth == 0)) {
1355 split_transform_flag = ff_hevc_split_transform_flag_decode(s, log2_trafo_size);
1357 int inter_split = s->sps->max_transform_hierarchy_depth_inter == 0 &&
1358 lc->cu.pred_mode == MODE_INTER &&
1359 lc->cu.part_mode != PART_2Nx2N &&
1362 split_transform_flag = log2_trafo_size > s->sps->log2_max_trafo_size ||
1363 (lc->cu.intra_split_flag && trafo_depth == 0) ||
1367 if (log2_trafo_size > 2 && (trafo_depth == 0 || cbf_cb))
1368 cbf_cb = ff_hevc_cbf_cb_cr_decode(s, trafo_depth);
1369 else if (log2_trafo_size > 2 || trafo_depth == 0)
1371 if (log2_trafo_size > 2 && (trafo_depth == 0 || cbf_cr))
1372 cbf_cr = ff_hevc_cbf_cb_cr_decode(s, trafo_depth);
1373 else if (log2_trafo_size > 2 || trafo_depth == 0)
1376 if (split_transform_flag) {
1377 const int trafo_size_split = 1 << (log2_trafo_size - 1);
1378 const int x1 = x0 + trafo_size_split;
1379 const int y1 = y0 + trafo_size_split;
1381 #define SUBDIVIDE(x, y, idx) \
1383 ret = hls_transform_tree(s, x, y, x0, y0, cb_xBase, cb_yBase, log2_cb_size, \
1384 log2_trafo_size - 1, trafo_depth + 1, idx, \
1390 SUBDIVIDE(x0, y0, 0);
1391 SUBDIVIDE(x1, y0, 1);
1392 SUBDIVIDE(x0, y1, 2);
1393 SUBDIVIDE(x1, y1, 3);
1397 int min_tu_size = 1 << s->sps->log2_min_tb_size;
1398 int log2_min_tu_size = s->sps->log2_min_tb_size;
1399 int min_tu_width = s->sps->min_tb_width;
1402 if (lc->cu.pred_mode == MODE_INTRA || trafo_depth != 0 ||
1404 cbf_luma = ff_hevc_cbf_luma_decode(s, trafo_depth);
1406 ret = hls_transform_unit(s, x0, y0, xBase, yBase, cb_xBase, cb_yBase,
1407 log2_cb_size, log2_trafo_size,
1408 blk_idx, cbf_luma, cbf_cb, cbf_cr);
1411 // TODO: store cbf_luma somewhere else
1414 for (i = 0; i < (1 << log2_trafo_size); i += min_tu_size)
1415 for (j = 0; j < (1 << log2_trafo_size); j += min_tu_size) {
1416 int x_tu = (x0 + j) >> log2_min_tu_size;
1417 int y_tu = (y0 + i) >> log2_min_tu_size;
1418 s->cbf_luma[y_tu * min_tu_width + x_tu] = 1;
1421 if (!s->sh.disable_deblocking_filter_flag) {
1422 ff_hevc_deblocking_boundary_strengths(s, x0, y0, log2_trafo_size);
1423 if (s->pps->transquant_bypass_enable_flag &&
1424 lc->cu.cu_transquant_bypass_flag)
1425 set_deblocking_bypass(s, x0, y0, log2_trafo_size);
1431 static int hls_pcm_sample(HEVCContext *s, int x0, int y0, int log2_cb_size)
1433 //TODO: non-4:2:0 support
1434 HEVCLocalContext *lc = &s->HEVClc;
1436 int cb_size = 1 << log2_cb_size;
1437 int stride0 = s->frame->linesize[0];
1438 uint8_t *dst0 = &s->frame->data[0][y0 * stride0 + (x0 << s->sps->pixel_shift)];
1439 int stride1 = s->frame->linesize[1];
1440 uint8_t *dst1 = &s->frame->data[1][(y0 >> s->sps->vshift[1]) * stride1 + ((x0 >> s->sps->hshift[1]) << s->sps->pixel_shift)];
1441 int stride2 = s->frame->linesize[2];
1442 uint8_t *dst2 = &s->frame->data[2][(y0 >> s->sps->vshift[2]) * stride2 + ((x0 >> s->sps->hshift[2]) << s->sps->pixel_shift)];
1444 int length = cb_size * cb_size * s->sps->pcm.bit_depth + ((cb_size * cb_size) >> 1) * s->sps->pcm.bit_depth_chroma;
1445 const uint8_t *pcm = skip_bytes(&lc->cc, (length + 7) >> 3);
1448 if (!s->sh.disable_deblocking_filter_flag)
1449 ff_hevc_deblocking_boundary_strengths(s, x0, y0, log2_cb_size);
1451 ret = init_get_bits(&gb, pcm, length);
1455 s->hevcdsp.put_pcm(dst0, stride0, cb_size, &gb, s->sps->pcm.bit_depth);
1456 s->hevcdsp.put_pcm(dst1, stride1, cb_size / 2, &gb, s->sps->pcm.bit_depth_chroma);
1457 s->hevcdsp.put_pcm(dst2, stride2, cb_size / 2, &gb, s->sps->pcm.bit_depth_chroma);
1461 static void hls_mvd_coding(HEVCContext *s, int x0, int y0, int log2_cb_size)
1463 HEVCLocalContext *lc = &s->HEVClc;
1464 int x = ff_hevc_abs_mvd_greater0_flag_decode(s);
1465 int y = ff_hevc_abs_mvd_greater0_flag_decode(s);
1468 x += ff_hevc_abs_mvd_greater1_flag_decode(s);
1470 y += ff_hevc_abs_mvd_greater1_flag_decode(s);
1473 case 2: lc->pu.mvd.x = ff_hevc_mvd_decode(s); break;
1474 case 1: lc->pu.mvd.x = ff_hevc_mvd_sign_flag_decode(s); break;
1475 case 0: lc->pu.mvd.x = 0; break;
1479 case 2: lc->pu.mvd.y = ff_hevc_mvd_decode(s); break;
1480 case 1: lc->pu.mvd.y = ff_hevc_mvd_sign_flag_decode(s); break;
1481 case 0: lc->pu.mvd.y = 0; break;
1486 * 8.5.3.2.2.1 Luma sample interpolation process
1488 * @param s HEVC decoding context
1489 * @param dst target buffer for block data at block position
1490 * @param dststride stride of the dst buffer
1491 * @param ref reference picture buffer at origin (0, 0)
1492 * @param mv motion vector (relative to block position) to get pixel data from
1493 * @param x_off horizontal position of block from origin (0, 0)
1494 * @param y_off vertical position of block from origin (0, 0)
1495 * @param block_w width of block
1496 * @param block_h height of block
1498 static void luma_mc(HEVCContext *s, int16_t *dst, ptrdiff_t dststride,
1499 AVFrame *ref, const Mv *mv, int x_off, int y_off,
1500 int block_w, int block_h)
1502 HEVCLocalContext *lc = &s->HEVClc;
1503 uint8_t *src = ref->data[0];
1504 ptrdiff_t srcstride = ref->linesize[0];
1505 int pic_width = s->sps->width;
1506 int pic_height = s->sps->height;
1510 int extra_left = ff_hevc_qpel_extra_before[mx];
1511 int extra_top = ff_hevc_qpel_extra_before[my];
1513 x_off += mv->x >> 2;
1514 y_off += mv->y >> 2;
1515 src += y_off * srcstride + (x_off << s->sps->pixel_shift);
1517 if (x_off < extra_left || y_off < extra_top ||
1518 x_off >= pic_width - block_w - ff_hevc_qpel_extra_after[mx] ||
1519 y_off >= pic_height - block_h - ff_hevc_qpel_extra_after[my]) {
1520 const int edge_emu_stride = EDGE_EMU_BUFFER_STRIDE << s->sps->pixel_shift;
1521 int offset = extra_top * srcstride + (extra_left << s->sps->pixel_shift);
1522 int buf_offset = extra_top *
1523 edge_emu_stride + (extra_left << s->sps->pixel_shift);
1525 s->vdsp.emulated_edge_mc(lc->edge_emu_buffer, src - offset,
1526 edge_emu_stride, srcstride,
1527 block_w + ff_hevc_qpel_extra[mx],
1528 block_h + ff_hevc_qpel_extra[my],
1529 x_off - extra_left, y_off - extra_top,
1530 pic_width, pic_height);
1531 src = lc->edge_emu_buffer + buf_offset;
1532 srcstride = edge_emu_stride;
1534 s->hevcdsp.put_hevc_qpel[my][mx](dst, dststride, src, srcstride, block_w,
1535 block_h, lc->mc_buffer);
1539 * 8.5.3.2.2.2 Chroma sample interpolation process
1541 * @param s HEVC decoding context
1542 * @param dst1 target buffer for block data at block position (U plane)
1543 * @param dst2 target buffer for block data at block position (V plane)
1544 * @param dststride stride of the dst1 and dst2 buffers
1545 * @param ref reference picture buffer at origin (0, 0)
1546 * @param mv motion vector (relative to block position) to get pixel data from
1547 * @param x_off horizontal position of block from origin (0, 0)
1548 * @param y_off vertical position of block from origin (0, 0)
1549 * @param block_w width of block
1550 * @param block_h height of block
1552 static void chroma_mc(HEVCContext *s, int16_t *dst1, int16_t *dst2,
1553 ptrdiff_t dststride, AVFrame *ref, const Mv *mv,
1554 int x_off, int y_off, int block_w, int block_h)
1556 HEVCLocalContext *lc = &s->HEVClc;
1557 uint8_t *src1 = ref->data[1];
1558 uint8_t *src2 = ref->data[2];
1559 ptrdiff_t src1stride = ref->linesize[1];
1560 ptrdiff_t src2stride = ref->linesize[2];
1561 int pic_width = s->sps->width >> 1;
1562 int pic_height = s->sps->height >> 1;
1567 x_off += mv->x >> 3;
1568 y_off += mv->y >> 3;
1569 src1 += y_off * src1stride + (x_off << s->sps->pixel_shift);
1570 src2 += y_off * src2stride + (x_off << s->sps->pixel_shift);
1572 if (x_off < EPEL_EXTRA_BEFORE || y_off < EPEL_EXTRA_AFTER ||
1573 x_off >= pic_width - block_w - EPEL_EXTRA_AFTER ||
1574 y_off >= pic_height - block_h - EPEL_EXTRA_AFTER) {
1575 const int edge_emu_stride = EDGE_EMU_BUFFER_STRIDE << s->sps->pixel_shift;
1576 int offset1 = EPEL_EXTRA_BEFORE * (src1stride + (1 << s->sps->pixel_shift));
1577 int buf_offset1 = EPEL_EXTRA_BEFORE *
1578 (edge_emu_stride + (1 << s->sps->pixel_shift));
1579 int offset2 = EPEL_EXTRA_BEFORE * (src2stride + (1 << s->sps->pixel_shift));
1580 int buf_offset2 = EPEL_EXTRA_BEFORE *
1581 (edge_emu_stride + (1 << s->sps->pixel_shift));
1583 s->vdsp.emulated_edge_mc(lc->edge_emu_buffer, src1 - offset1,
1584 edge_emu_stride, src1stride,
1585 block_w + EPEL_EXTRA, block_h + EPEL_EXTRA,
1586 x_off - EPEL_EXTRA_BEFORE,
1587 y_off - EPEL_EXTRA_BEFORE,
1588 pic_width, pic_height);
1590 src1 = lc->edge_emu_buffer + buf_offset1;
1591 src1stride = edge_emu_stride;
1592 s->hevcdsp.put_hevc_epel[!!my][!!mx](dst1, dststride, src1, src1stride,
1593 block_w, block_h, mx, my, lc->mc_buffer);
1595 s->vdsp.emulated_edge_mc(lc->edge_emu_buffer, src2 - offset2,
1596 edge_emu_stride, src2stride,
1597 block_w + EPEL_EXTRA, block_h + EPEL_EXTRA,
1598 x_off - EPEL_EXTRA_BEFORE,
1599 y_off - EPEL_EXTRA_BEFORE,
1600 pic_width, pic_height);
1601 src2 = lc->edge_emu_buffer + buf_offset2;
1602 src2stride = edge_emu_stride;
1604 s->hevcdsp.put_hevc_epel[!!my][!!mx](dst2, dststride, src2, src2stride,
1605 block_w, block_h, mx, my,
1608 s->hevcdsp.put_hevc_epel[!!my][!!mx](dst1, dststride, src1, src1stride,
1609 block_w, block_h, mx, my,
1611 s->hevcdsp.put_hevc_epel[!!my][!!mx](dst2, dststride, src2, src2stride,
1612 block_w, block_h, mx, my,
1617 static void hevc_await_progress(HEVCContext *s, HEVCFrame *ref,
1618 const Mv *mv, int y0, int height)
1620 int y = (mv->y >> 2) + y0 + height + 9;
1621 ff_thread_await_progress(&ref->tf, y, 0);
1624 static void hevc_luma_mv_mpv_mode(HEVCContext *s, int x0, int y0, int nPbW,
1625 int nPbH, int log2_cb_size, int part_idx,
1626 int merge_idx, MvField *mv)
1628 HEVCLocalContext *lc = &s->HEVClc;
1629 enum InterPredIdc inter_pred_idc = PRED_L0;
1632 ff_hevc_set_neighbour_available(s, x0, y0, nPbW, nPbH);
1633 if (s->sh.slice_type == B_SLICE)
1634 inter_pred_idc = ff_hevc_inter_pred_idc_decode(s, nPbW, nPbH);
1636 if (inter_pred_idc != PRED_L1) {
1637 if (s->sh.nb_refs[L0])
1638 mv->ref_idx[0]= ff_hevc_ref_idx_lx_decode(s, s->sh.nb_refs[L0]);
1640 mv->pred_flag[0] = 1;
1641 hls_mvd_coding(s, x0, y0, 0);
1642 mvp_flag = ff_hevc_mvp_lx_flag_decode(s);
1643 ff_hevc_luma_mv_mvp_mode(s, x0, y0, nPbW, nPbH, log2_cb_size,
1644 part_idx, merge_idx, mv, mvp_flag, 0);
1645 mv->mv[0].x += lc->pu.mvd.x;
1646 mv->mv[0].y += lc->pu.mvd.y;
1649 if (inter_pred_idc != PRED_L0) {
1650 if (s->sh.nb_refs[L1])
1651 mv->ref_idx[1]= ff_hevc_ref_idx_lx_decode(s, s->sh.nb_refs[L1]);
1653 if (s->sh.mvd_l1_zero_flag == 1 && inter_pred_idc == PRED_BI) {
1654 AV_ZERO32(&lc->pu.mvd);
1656 hls_mvd_coding(s, x0, y0, 1);
1659 mv->pred_flag[1] = 1;
1660 mvp_flag = ff_hevc_mvp_lx_flag_decode(s);
1661 ff_hevc_luma_mv_mvp_mode(s, x0, y0, nPbW, nPbH, log2_cb_size,
1662 part_idx, merge_idx, mv, mvp_flag, 1);
1663 mv->mv[1].x += lc->pu.mvd.x;
1664 mv->mv[1].y += lc->pu.mvd.y;
1668 static void hls_prediction_unit(HEVCContext *s, int x0, int y0,
1670 int log2_cb_size, int partIdx)
1672 #define POS(c_idx, x, y) \
1673 &s->frame->data[c_idx][((y) >> s->sps->vshift[c_idx]) * s->frame->linesize[c_idx] + \
1674 (((x) >> s->sps->hshift[c_idx]) << s->sps->pixel_shift)]
1675 HEVCLocalContext *lc = &s->HEVClc;
1677 struct MvField current_mv = {{{ 0 }}};
1679 int min_pu_width = s->sps->min_pu_width;
1681 MvField *tab_mvf = s->ref->tab_mvf;
1682 RefPicList *refPicList = s->ref->refPicList;
1683 HEVCFrame *ref0, *ref1;
1685 int tmpstride = MAX_PB_SIZE;
1687 uint8_t *dst0 = POS(0, x0, y0);
1688 uint8_t *dst1 = POS(1, x0, y0);
1689 uint8_t *dst2 = POS(2, x0, y0);
1690 int log2_min_cb_size = s->sps->log2_min_cb_size;
1691 int min_cb_width = s->sps->min_cb_width;
1692 int x_cb = x0 >> log2_min_cb_size;
1693 int y_cb = y0 >> log2_min_cb_size;
1697 int skip_flag = SAMPLE_CTB(s->skip_flag, x_cb, y_cb);
1700 lc->pu.merge_flag = ff_hevc_merge_flag_decode(s);
1702 if (skip_flag || lc->pu.merge_flag) {
1703 if (s->sh.max_num_merge_cand > 1)
1704 merge_idx = ff_hevc_merge_idx_decode(s);
1708 ff_hevc_luma_mv_merge_mode(s, x0, y0, nPbW, nPbH, log2_cb_size,
1709 partIdx, merge_idx, ¤t_mv);
1711 hevc_luma_mv_mpv_mode(s, x0, y0, nPbW, nPbH, log2_cb_size,
1712 partIdx, merge_idx, ¤t_mv);
1715 x_pu = x0 >> s->sps->log2_min_pu_size;
1716 y_pu = y0 >> s->sps->log2_min_pu_size;
1718 for (j = 0; j < nPbH >> s->sps->log2_min_pu_size; j++)
1719 for (i = 0; i < nPbW >> s->sps->log2_min_pu_size; i++)
1720 tab_mvf[(y_pu + j) * min_pu_width + x_pu + i] = current_mv;
1722 if (current_mv.pred_flag[0]) {
1723 ref0 = refPicList[0].ref[current_mv.ref_idx[0]];
1726 hevc_await_progress(s, ref0, ¤t_mv.mv[0], y0, nPbH);
1728 if (current_mv.pred_flag[1]) {
1729 ref1 = refPicList[1].ref[current_mv.ref_idx[1]];
1732 hevc_await_progress(s, ref1, ¤t_mv.mv[1], y0, nPbH);
1735 if (current_mv.pred_flag[0] && !current_mv.pred_flag[1]) {
1736 DECLARE_ALIGNED(16, int16_t, tmp[MAX_PB_SIZE * MAX_PB_SIZE]);
1737 DECLARE_ALIGNED(16, int16_t, tmp2[MAX_PB_SIZE * MAX_PB_SIZE]);
1739 luma_mc(s, tmp, tmpstride, ref0->frame,
1740 ¤t_mv.mv[0], x0, y0, nPbW, nPbH);
1742 if ((s->sh.slice_type == P_SLICE && s->pps->weighted_pred_flag) ||
1743 (s->sh.slice_type == B_SLICE && s->pps->weighted_bipred_flag)) {
1744 s->hevcdsp.weighted_pred(s->sh.luma_log2_weight_denom,
1745 s->sh.luma_weight_l0[current_mv.ref_idx[0]],
1746 s->sh.luma_offset_l0[current_mv.ref_idx[0]],
1747 dst0, s->frame->linesize[0], tmp,
1748 tmpstride, nPbW, nPbH);
1750 s->hevcdsp.put_unweighted_pred(dst0, s->frame->linesize[0], tmp, tmpstride, nPbW, nPbH);
1752 chroma_mc(s, tmp, tmp2, tmpstride, ref0->frame,
1753 ¤t_mv.mv[0], x0 / 2, y0 / 2, nPbW / 2, nPbH / 2);
1755 if ((s->sh.slice_type == P_SLICE && s->pps->weighted_pred_flag) ||
1756 (s->sh.slice_type == B_SLICE && s->pps->weighted_bipred_flag)) {
1757 s->hevcdsp.weighted_pred(s->sh.chroma_log2_weight_denom,
1758 s->sh.chroma_weight_l0[current_mv.ref_idx[0]][0],
1759 s->sh.chroma_offset_l0[current_mv.ref_idx[0]][0],
1760 dst1, s->frame->linesize[1], tmp, tmpstride,
1761 nPbW / 2, nPbH / 2);
1762 s->hevcdsp.weighted_pred(s->sh.chroma_log2_weight_denom,
1763 s->sh.chroma_weight_l0[current_mv.ref_idx[0]][1],
1764 s->sh.chroma_offset_l0[current_mv.ref_idx[0]][1],
1765 dst2, s->frame->linesize[2], tmp2, tmpstride,
1766 nPbW / 2, nPbH / 2);
1768 s->hevcdsp.put_unweighted_pred(dst1, s->frame->linesize[1], tmp, tmpstride, nPbW/2, nPbH/2);
1769 s->hevcdsp.put_unweighted_pred(dst2, s->frame->linesize[2], tmp2, tmpstride, nPbW/2, nPbH/2);
1771 } else if (!current_mv.pred_flag[0] && current_mv.pred_flag[1]) {
1772 DECLARE_ALIGNED(16, int16_t, tmp [MAX_PB_SIZE * MAX_PB_SIZE]);
1773 DECLARE_ALIGNED(16, int16_t, tmp2[MAX_PB_SIZE * MAX_PB_SIZE]);
1775 luma_mc(s, tmp, tmpstride, ref1->frame,
1776 ¤t_mv.mv[1], x0, y0, nPbW, nPbH);
1778 if ((s->sh.slice_type == P_SLICE && s->pps->weighted_pred_flag) ||
1779 (s->sh.slice_type == B_SLICE && s->pps->weighted_bipred_flag)) {
1780 s->hevcdsp.weighted_pred(s->sh.luma_log2_weight_denom,
1781 s->sh.luma_weight_l1[current_mv.ref_idx[1]],
1782 s->sh.luma_offset_l1[current_mv.ref_idx[1]],
1783 dst0, s->frame->linesize[0], tmp, tmpstride,
1786 s->hevcdsp.put_unweighted_pred(dst0, s->frame->linesize[0], tmp, tmpstride, nPbW, nPbH);
1789 chroma_mc(s, tmp, tmp2, tmpstride, ref1->frame,
1790 ¤t_mv.mv[1], x0/2, y0/2, nPbW/2, nPbH/2);
1792 if ((s->sh.slice_type == P_SLICE && s->pps->weighted_pred_flag) ||
1793 (s->sh.slice_type == B_SLICE && s->pps->weighted_bipred_flag)) {
1794 s->hevcdsp.weighted_pred(s->sh.chroma_log2_weight_denom,
1795 s->sh.chroma_weight_l1[current_mv.ref_idx[1]][0],
1796 s->sh.chroma_offset_l1[current_mv.ref_idx[1]][0],
1797 dst1, s->frame->linesize[1], tmp, tmpstride, nPbW/2, nPbH/2);
1798 s->hevcdsp.weighted_pred(s->sh.chroma_log2_weight_denom,
1799 s->sh.chroma_weight_l1[current_mv.ref_idx[1]][1],
1800 s->sh.chroma_offset_l1[current_mv.ref_idx[1]][1],
1801 dst2, s->frame->linesize[2], tmp2, tmpstride, nPbW/2, nPbH/2);
1803 s->hevcdsp.put_unweighted_pred(dst1, s->frame->linesize[1], tmp, tmpstride, nPbW/2, nPbH/2);
1804 s->hevcdsp.put_unweighted_pred(dst2, s->frame->linesize[2], tmp2, tmpstride, nPbW/2, nPbH/2);
1806 } else if (current_mv.pred_flag[0] && current_mv.pred_flag[1]) {
1807 DECLARE_ALIGNED(16, int16_t, tmp [MAX_PB_SIZE * MAX_PB_SIZE]);
1808 DECLARE_ALIGNED(16, int16_t, tmp2[MAX_PB_SIZE * MAX_PB_SIZE]);
1809 DECLARE_ALIGNED(16, int16_t, tmp3[MAX_PB_SIZE * MAX_PB_SIZE]);
1810 DECLARE_ALIGNED(16, int16_t, tmp4[MAX_PB_SIZE * MAX_PB_SIZE]);
1812 luma_mc(s, tmp, tmpstride, ref0->frame,
1813 ¤t_mv.mv[0], x0, y0, nPbW, nPbH);
1814 luma_mc(s, tmp2, tmpstride, ref1->frame,
1815 ¤t_mv.mv[1], x0, y0, nPbW, nPbH);
1817 if ((s->sh.slice_type == P_SLICE && s->pps->weighted_pred_flag) ||
1818 (s->sh.slice_type == B_SLICE && s->pps->weighted_bipred_flag)) {
1819 s->hevcdsp.weighted_pred_avg(s->sh.luma_log2_weight_denom,
1820 s->sh.luma_weight_l0[current_mv.ref_idx[0]],
1821 s->sh.luma_weight_l1[current_mv.ref_idx[1]],
1822 s->sh.luma_offset_l0[current_mv.ref_idx[0]],
1823 s->sh.luma_offset_l1[current_mv.ref_idx[1]],
1824 dst0, s->frame->linesize[0],
1825 tmp, tmp2, tmpstride, nPbW, nPbH);
1827 s->hevcdsp.put_weighted_pred_avg(dst0, s->frame->linesize[0],
1828 tmp, tmp2, tmpstride, nPbW, nPbH);
1831 chroma_mc(s, tmp, tmp2, tmpstride, ref0->frame,
1832 ¤t_mv.mv[0], x0 / 2, y0 / 2, nPbW / 2, nPbH / 2);
1833 chroma_mc(s, tmp3, tmp4, tmpstride, ref1->frame,
1834 ¤t_mv.mv[1], x0 / 2, y0 / 2, nPbW / 2, nPbH / 2);
1836 if ((s->sh.slice_type == P_SLICE && s->pps->weighted_pred_flag) ||
1837 (s->sh.slice_type == B_SLICE && s->pps->weighted_bipred_flag)) {
1838 s->hevcdsp.weighted_pred_avg(s->sh.chroma_log2_weight_denom,
1839 s->sh.chroma_weight_l0[current_mv.ref_idx[0]][0],
1840 s->sh.chroma_weight_l1[current_mv.ref_idx[1]][0],
1841 s->sh.chroma_offset_l0[current_mv.ref_idx[0]][0],
1842 s->sh.chroma_offset_l1[current_mv.ref_idx[1]][0],
1843 dst1, s->frame->linesize[1], tmp, tmp3,
1844 tmpstride, nPbW / 2, nPbH / 2);
1845 s->hevcdsp.weighted_pred_avg(s->sh.chroma_log2_weight_denom,
1846 s->sh.chroma_weight_l0[current_mv.ref_idx[0]][1],
1847 s->sh.chroma_weight_l1[current_mv.ref_idx[1]][1],
1848 s->sh.chroma_offset_l0[current_mv.ref_idx[0]][1],
1849 s->sh.chroma_offset_l1[current_mv.ref_idx[1]][1],
1850 dst2, s->frame->linesize[2], tmp2, tmp4,
1851 tmpstride, nPbW / 2, nPbH / 2);
1853 s->hevcdsp.put_weighted_pred_avg(dst1, s->frame->linesize[1], tmp, tmp3, tmpstride, nPbW/2, nPbH/2);
1854 s->hevcdsp.put_weighted_pred_avg(dst2, s->frame->linesize[2], tmp2, tmp4, tmpstride, nPbW/2, nPbH/2);
1862 static int luma_intra_pred_mode(HEVCContext *s, int x0, int y0, int pu_size,
1863 int prev_intra_luma_pred_flag)
1865 HEVCLocalContext *lc = &s->HEVClc;
1866 int x_pu = x0 >> s->sps->log2_min_pu_size;
1867 int y_pu = y0 >> s->sps->log2_min_pu_size;
1868 int min_pu_width = s->sps->min_pu_width;
1869 int size_in_pus = pu_size >> s->sps->log2_min_pu_size;
1870 int x0b = x0 & ((1 << s->sps->log2_ctb_size) - 1);
1871 int y0b = y0 & ((1 << s->sps->log2_ctb_size) - 1);
1873 int cand_up = (lc->ctb_up_flag || y0b) ?
1874 s->tab_ipm[(y_pu - 1) * min_pu_width + x_pu] : INTRA_DC;
1875 int cand_left = (lc->ctb_left_flag || x0b) ?
1876 s->tab_ipm[y_pu * min_pu_width + x_pu - 1] : INTRA_DC;
1878 int y_ctb = (y0 >> (s->sps->log2_ctb_size)) << (s->sps->log2_ctb_size);
1880 MvField *tab_mvf = s->ref->tab_mvf;
1881 int intra_pred_mode;
1885 // intra_pred_mode prediction does not cross vertical CTB boundaries
1886 if ((y0 - 1) < y_ctb)
1889 if (cand_left == cand_up) {
1890 if (cand_left < 2) {
1891 candidate[0] = INTRA_PLANAR;
1892 candidate[1] = INTRA_DC;
1893 candidate[2] = INTRA_ANGULAR_26;
1895 candidate[0] = cand_left;
1896 candidate[1] = 2 + ((cand_left - 2 - 1 + 32) & 31);
1897 candidate[2] = 2 + ((cand_left - 2 + 1) & 31);
1900 candidate[0] = cand_left;
1901 candidate[1] = cand_up;
1902 if (candidate[0] != INTRA_PLANAR && candidate[1] != INTRA_PLANAR) {
1903 candidate[2] = INTRA_PLANAR;
1904 } else if (candidate[0] != INTRA_DC && candidate[1] != INTRA_DC) {
1905 candidate[2] = INTRA_DC;
1907 candidate[2] = INTRA_ANGULAR_26;
1911 if (prev_intra_luma_pred_flag) {
1912 intra_pred_mode = candidate[lc->pu.mpm_idx];
1914 if (candidate[0] > candidate[1])
1915 FFSWAP(uint8_t, candidate[0], candidate[1]);
1916 if (candidate[0] > candidate[2])
1917 FFSWAP(uint8_t, candidate[0], candidate[2]);
1918 if (candidate[1] > candidate[2])
1919 FFSWAP(uint8_t, candidate[1], candidate[2]);
1921 intra_pred_mode = lc->pu.rem_intra_luma_pred_mode;
1922 for (i = 0; i < 3; i++)
1923 if (intra_pred_mode >= candidate[i])
1927 /* write the intra prediction units into the mv array */
1930 for (i = 0; i < size_in_pus; i++) {
1931 memset(&s->tab_ipm[(y_pu + i) * min_pu_width + x_pu],
1932 intra_pred_mode, size_in_pus);
1934 for (j = 0; j < size_in_pus; j++) {
1935 tab_mvf[(y_pu + j) * min_pu_width + x_pu + i].is_intra = 1;
1936 tab_mvf[(y_pu + j) * min_pu_width + x_pu + i].pred_flag[0] = 0;
1937 tab_mvf[(y_pu + j) * min_pu_width + x_pu + i].pred_flag[1] = 0;
1938 tab_mvf[(y_pu + j) * min_pu_width + x_pu + i].ref_idx[0] = 0;
1939 tab_mvf[(y_pu + j) * min_pu_width + x_pu + i].ref_idx[1] = 0;
1940 tab_mvf[(y_pu + j) * min_pu_width + x_pu + i].mv[0].x = 0;
1941 tab_mvf[(y_pu + j) * min_pu_width + x_pu + i].mv[0].y = 0;
1942 tab_mvf[(y_pu + j) * min_pu_width + x_pu + i].mv[1].x = 0;
1943 tab_mvf[(y_pu + j) * min_pu_width + x_pu + i].mv[1].y = 0;
1947 return intra_pred_mode;
1950 static av_always_inline void set_ct_depth(HEVCContext *s, int x0, int y0,
1951 int log2_cb_size, int ct_depth)
1953 int length = (1 << log2_cb_size) >> s->sps->log2_min_cb_size;
1954 int x_cb = x0 >> s->sps->log2_min_cb_size;
1955 int y_cb = y0 >> s->sps->log2_min_cb_size;
1958 for (y = 0; y < length; y++)
1959 memset(&s->tab_ct_depth[(y_cb + y) * s->sps->min_cb_width + x_cb],
1963 static void intra_prediction_unit(HEVCContext *s, int x0, int y0,
1966 HEVCLocalContext *lc = &s->HEVClc;
1967 static const uint8_t intra_chroma_table[4] = { 0, 26, 10, 1 };
1968 uint8_t prev_intra_luma_pred_flag[4];
1969 int split = lc->cu.part_mode == PART_NxN;
1970 int pb_size = (1 << log2_cb_size) >> split;
1971 int side = split + 1;
1975 for (i = 0; i < side; i++)
1976 for (j = 0; j < side; j++)
1977 prev_intra_luma_pred_flag[2 * i + j] = ff_hevc_prev_intra_luma_pred_flag_decode(s);
1979 for (i = 0; i < side; i++) {
1980 for (j = 0; j < side; j++) {
1981 if (prev_intra_luma_pred_flag[2 * i + j])
1982 lc->pu.mpm_idx = ff_hevc_mpm_idx_decode(s);
1984 lc->pu.rem_intra_luma_pred_mode = ff_hevc_rem_intra_luma_pred_mode_decode(s);
1986 lc->pu.intra_pred_mode[2 * i + j] =
1987 luma_intra_pred_mode(s, x0 + pb_size * j, y0 + pb_size * i, pb_size,
1988 prev_intra_luma_pred_flag[2 * i + j]);
1992 chroma_mode = ff_hevc_intra_chroma_pred_mode_decode(s);
1993 if (chroma_mode != 4) {
1994 if (lc->pu.intra_pred_mode[0] == intra_chroma_table[chroma_mode])
1995 lc->pu.intra_pred_mode_c = 34;
1997 lc->pu.intra_pred_mode_c = intra_chroma_table[chroma_mode];
1999 lc->pu.intra_pred_mode_c = lc->pu.intra_pred_mode[0];
2003 static void intra_prediction_unit_default_value(HEVCContext *s,
2007 HEVCLocalContext *lc = &s->HEVClc;
2008 int pb_size = 1 << log2_cb_size;
2009 int size_in_pus = pb_size >> s->sps->log2_min_pu_size;
2010 int min_pu_width = s->sps->min_pu_width;
2011 MvField *tab_mvf = s->ref->tab_mvf;
2012 int x_pu = x0 >> s->sps->log2_min_pu_size;
2013 int y_pu = y0 >> s->sps->log2_min_pu_size;
2016 if (size_in_pus == 0)
2018 for (j = 0; j < size_in_pus; j++) {
2019 memset(&s->tab_ipm[(y_pu + j) * min_pu_width + x_pu], INTRA_DC, size_in_pus);
2020 for (k = 0; k < size_in_pus; k++)
2021 tab_mvf[(y_pu + j) * min_pu_width + x_pu + k].is_intra = lc->cu.pred_mode == MODE_INTRA;
2025 static int hls_coding_unit(HEVCContext *s, int x0, int y0, int log2_cb_size)
2027 int cb_size = 1 << log2_cb_size;
2028 HEVCLocalContext *lc = &s->HEVClc;
2029 int log2_min_cb_size = s->sps->log2_min_cb_size;
2030 int length = cb_size >> log2_min_cb_size;
2031 int min_cb_width = s->sps->min_cb_width;
2032 int x_cb = x0 >> log2_min_cb_size;
2033 int y_cb = y0 >> log2_min_cb_size;
2038 lc->cu.pred_mode = MODE_INTRA;
2039 lc->cu.part_mode = PART_2Nx2N;
2040 lc->cu.intra_split_flag = 0;
2042 SAMPLE_CTB(s->skip_flag, x_cb, y_cb) = 0;
2043 for (x = 0; x < 4; x++)
2044 lc->pu.intra_pred_mode[x] = 1;
2045 if (s->pps->transquant_bypass_enable_flag) {
2046 lc->cu.cu_transquant_bypass_flag = ff_hevc_cu_transquant_bypass_flag_decode(s);
2047 if (lc->cu.cu_transquant_bypass_flag)
2048 set_deblocking_bypass(s, x0, y0, log2_cb_size);
2050 lc->cu.cu_transquant_bypass_flag = 0;
2052 if (s->sh.slice_type != I_SLICE) {
2053 uint8_t skip_flag = ff_hevc_skip_flag_decode(s, x0, y0, x_cb, y_cb);
2055 x = y_cb * min_cb_width + x_cb;
2056 for (y = 0; y < length; y++) {
2057 memset(&s->skip_flag[x], skip_flag, length);
2060 lc->cu.pred_mode = skip_flag ? MODE_SKIP : MODE_INTER;
2063 if (SAMPLE_CTB(s->skip_flag, x_cb, y_cb)) {
2064 hls_prediction_unit(s, x0, y0, cb_size, cb_size, log2_cb_size, 0);
2065 intra_prediction_unit_default_value(s, x0, y0, log2_cb_size);
2067 if (!s->sh.disable_deblocking_filter_flag)
2068 ff_hevc_deblocking_boundary_strengths(s, x0, y0, log2_cb_size);
2072 if (s->sh.slice_type != I_SLICE)
2073 lc->cu.pred_mode = ff_hevc_pred_mode_decode(s);
2074 if (lc->cu.pred_mode != MODE_INTRA ||
2075 log2_cb_size == s->sps->log2_min_cb_size) {
2076 lc->cu.part_mode = ff_hevc_part_mode_decode(s, log2_cb_size);
2077 lc->cu.intra_split_flag = lc->cu.part_mode == PART_NxN &&
2078 lc->cu.pred_mode == MODE_INTRA;
2081 if (lc->cu.pred_mode == MODE_INTRA) {
2082 if (lc->cu.part_mode == PART_2Nx2N && s->sps->pcm_enabled_flag &&
2083 log2_cb_size >= s->sps->pcm.log2_min_pcm_cb_size &&
2084 log2_cb_size <= s->sps->pcm.log2_max_pcm_cb_size) {
2085 pcm_flag = ff_hevc_pcm_flag_decode(s);
2088 intra_prediction_unit_default_value(s, x0, y0, log2_cb_size);
2089 ret = hls_pcm_sample(s, x0, y0, log2_cb_size);
2090 if (s->sps->pcm.loop_filter_disable_flag)
2091 set_deblocking_bypass(s, x0, y0, log2_cb_size);
2096 intra_prediction_unit(s, x0, y0, log2_cb_size);
2099 intra_prediction_unit_default_value(s, x0, y0, log2_cb_size);
2100 switch (lc->cu.part_mode) {
2102 hls_prediction_unit(s, x0, y0, cb_size, cb_size, log2_cb_size, 0);
2105 hls_prediction_unit(s, x0, y0, cb_size, cb_size / 2, log2_cb_size, 0);
2106 hls_prediction_unit(s, x0, y0 + cb_size / 2, cb_size, cb_size / 2, log2_cb_size, 1);
2109 hls_prediction_unit(s, x0, y0, cb_size / 2, cb_size, log2_cb_size, 0);
2110 hls_prediction_unit(s, x0 + cb_size / 2, y0, cb_size / 2, cb_size, log2_cb_size, 1);
2113 hls_prediction_unit(s, x0, y0, cb_size, cb_size / 4, log2_cb_size, 0);
2114 hls_prediction_unit(s, x0, y0 + cb_size / 4, cb_size, cb_size * 3 / 4, log2_cb_size, 1);
2117 hls_prediction_unit(s, x0, y0, cb_size, cb_size * 3 / 4, log2_cb_size, 0);
2118 hls_prediction_unit(s, x0, y0 + cb_size * 3 / 4, cb_size, cb_size / 4, log2_cb_size, 1);
2121 hls_prediction_unit(s, x0, y0, cb_size / 4, cb_size, log2_cb_size, 0);
2122 hls_prediction_unit(s, x0 + cb_size / 4, y0, cb_size * 3 / 4, cb_size, log2_cb_size, 1);
2125 hls_prediction_unit(s, x0, y0, cb_size * 3 / 4, cb_size, log2_cb_size, 0);
2126 hls_prediction_unit(s, x0 + cb_size * 3 / 4, y0, cb_size / 4, cb_size, log2_cb_size, 1);
2129 hls_prediction_unit(s, x0, y0, cb_size / 2, cb_size / 2, log2_cb_size, 0);
2130 hls_prediction_unit(s, x0 + cb_size / 2, y0, cb_size / 2, cb_size / 2, log2_cb_size, 1);
2131 hls_prediction_unit(s, x0, y0 + cb_size / 2, cb_size / 2, cb_size / 2, log2_cb_size, 2);
2132 hls_prediction_unit(s, x0 + cb_size / 2, y0 + cb_size / 2, cb_size / 2, cb_size / 2, log2_cb_size, 3);
2138 int rqt_root_cbf = 1;
2140 if (lc->cu.pred_mode != MODE_INTRA &&
2141 !(lc->cu.part_mode == PART_2Nx2N && lc->pu.merge_flag)) {
2142 rqt_root_cbf = ff_hevc_no_residual_syntax_flag_decode(s);
2145 lc->cu.max_trafo_depth = lc->cu.pred_mode == MODE_INTRA ?
2146 s->sps->max_transform_hierarchy_depth_intra + lc->cu.intra_split_flag :
2147 s->sps->max_transform_hierarchy_depth_inter;
2148 ret = hls_transform_tree(s, x0, y0, x0, y0, x0, y0,
2150 log2_cb_size, 0, 0, 0, 0);
2154 if (!s->sh.disable_deblocking_filter_flag)
2155 ff_hevc_deblocking_boundary_strengths(s, x0, y0, log2_cb_size);
2160 if (s->pps->cu_qp_delta_enabled_flag && lc->tu.is_cu_qp_delta_coded == 0)
2161 ff_hevc_set_qPy(s, x0, y0, x0, y0, log2_cb_size);
2163 x = y_cb * min_cb_width + x_cb;
2164 for (y = 0; y < length; y++) {
2165 memset(&s->qp_y_tab[x], lc->qp_y, length);
2169 set_ct_depth(s, x0, y0, log2_cb_size, lc->ct.depth);
2174 static int hls_coding_quadtree(HEVCContext *s, int x0, int y0,
2175 int log2_cb_size, int cb_depth)
2177 HEVCLocalContext *lc = &s->HEVClc;
2178 const int cb_size = 1 << log2_cb_size;
2181 lc->ct.depth = cb_depth;
2182 if (x0 + cb_size <= s->sps->width &&
2183 y0 + cb_size <= s->sps->height &&
2184 log2_cb_size > s->sps->log2_min_cb_size) {
2185 split_cu = ff_hevc_split_coding_unit_flag_decode(s, cb_depth, x0, y0);
2187 split_cu = (log2_cb_size > s->sps->log2_min_cb_size);
2189 if (s->pps->cu_qp_delta_enabled_flag &&
2190 log2_cb_size >= s->sps->log2_ctb_size - s->pps->diff_cu_qp_delta_depth) {
2191 lc->tu.is_cu_qp_delta_coded = 0;
2192 lc->tu.cu_qp_delta = 0;
2196 const int cb_size_split = cb_size >> 1;
2197 const int x1 = x0 + cb_size_split;
2198 const int y1 = y0 + cb_size_split;
2203 #define SUBDIVIDE(x, y) \
2205 if (x < s->sps->width && y < s->sps->height) { \
2206 int ret = hls_coding_quadtree(s, x, y, log2_cb_size, cb_depth);\
2217 int ret = hls_coding_unit(s, x0, y0, log2_cb_size);
2225 static void hls_decode_neighbour(HEVCContext *s, int x_ctb, int y_ctb,
2228 HEVCLocalContext *lc = &s->HEVClc;
2229 int ctb_size = 1 << s->sps->log2_ctb_size;
2230 int ctb_addr_rs = s->pps->ctb_addr_ts_to_rs[ctb_addr_ts];
2231 int ctb_addr_in_slice = ctb_addr_rs - s->sh.slice_addr;
2233 s->tab_slice_address[ctb_addr_rs] = s->sh.slice_addr;
2235 if (s->pps->entropy_coding_sync_enabled_flag) {
2236 if (x_ctb == 0 && (y_ctb & (ctb_size - 1)) == 0)
2237 lc->first_qp_group = 1;
2238 lc->end_of_tiles_x = s->sps->width;
2239 } else if (s->pps->tiles_enabled_flag) {
2240 if (ctb_addr_ts && s->pps->tile_id[ctb_addr_ts] != s->pps->tile_id[ctb_addr_ts - 1]) {
2241 int idxX = s->pps->col_idxX[x_ctb >> s->sps->log2_ctb_size];
2242 lc->start_of_tiles_x = x_ctb;
2243 lc->end_of_tiles_x = x_ctb + (s->pps->column_width[idxX] << s->sps->log2_ctb_size);
2244 lc->first_qp_group = 1;
2247 lc->end_of_tiles_x = s->sps->width;
2250 lc->end_of_tiles_y = FFMIN(y_ctb + ctb_size, s->sps->height);
2252 lc->boundary_flags = 0;
2253 if (s->pps->tiles_enabled_flag) {
2254 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]])
2255 lc->boundary_flags |= BOUNDARY_LEFT_TILE;
2256 if (x_ctb > 0 && s->tab_slice_address[ctb_addr_rs] != s->tab_slice_address[ctb_addr_rs - 1])
2257 lc->boundary_flags |= BOUNDARY_LEFT_SLICE;
2258 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]])
2259 lc->boundary_flags |= BOUNDARY_UPPER_TILE;
2260 if (y_ctb > 0 && s->tab_slice_address[ctb_addr_rs] != s->tab_slice_address[ctb_addr_rs - s->sps->ctb_width])
2261 lc->boundary_flags |= BOUNDARY_UPPER_SLICE;
2263 if (!ctb_addr_in_slice > 0)
2264 lc->boundary_flags |= BOUNDARY_LEFT_SLICE;
2265 if (ctb_addr_in_slice < s->sps->ctb_width)
2266 lc->boundary_flags |= BOUNDARY_UPPER_SLICE;
2269 lc->ctb_left_flag = ((x_ctb > 0) && (ctb_addr_in_slice > 0) && !(lc->boundary_flags & BOUNDARY_LEFT_TILE));
2270 lc->ctb_up_flag = ((y_ctb > 0) && (ctb_addr_in_slice >= s->sps->ctb_width) && !(lc->boundary_flags & BOUNDARY_UPPER_TILE));
2271 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]]));
2272 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]]));
2275 static int hls_slice_data(HEVCContext *s)
2277 int ctb_size = 1 << s->sps->log2_ctb_size;
2281 int ctb_addr_ts = s->pps->ctb_addr_rs_to_ts[s->sh.slice_ctb_addr_rs];
2284 while (more_data && ctb_addr_ts < s->sps->ctb_size) {
2285 int ctb_addr_rs = s->pps->ctb_addr_ts_to_rs[ctb_addr_ts];
2287 x_ctb = (ctb_addr_rs % ((s->sps->width + ctb_size - 1) >> s->sps->log2_ctb_size)) << s->sps->log2_ctb_size;
2288 y_ctb = (ctb_addr_rs / ((s->sps->width + ctb_size - 1) >> s->sps->log2_ctb_size)) << s->sps->log2_ctb_size;
2289 hls_decode_neighbour(s, x_ctb, y_ctb, ctb_addr_ts);
2291 ff_hevc_cabac_init(s, ctb_addr_ts);
2293 hls_sao_param(s, x_ctb >> s->sps->log2_ctb_size, y_ctb >> s->sps->log2_ctb_size);
2295 s->deblock[ctb_addr_rs].beta_offset = s->sh.beta_offset;
2296 s->deblock[ctb_addr_rs].tc_offset = s->sh.tc_offset;
2297 s->filter_slice_edges[ctb_addr_rs] = s->sh.slice_loop_filter_across_slices_enabled_flag;
2299 ret = hls_coding_quadtree(s, x_ctb, y_ctb, s->sps->log2_ctb_size, 0);
2302 more_data = !ff_hevc_end_of_slice_flag_decode(s);
2305 ff_hevc_save_states(s, ctb_addr_ts);
2306 ff_hevc_hls_filters(s, x_ctb, y_ctb, ctb_size);
2309 if (x_ctb + ctb_size >= s->sps->width &&
2310 y_ctb + ctb_size >= s->sps->height)
2311 ff_hevc_hls_filter(s, x_ctb, y_ctb);
2317 * @return AVERROR_INVALIDDATA if the packet is not a valid NAL unit,
2318 * 0 if the unit should be skipped, 1 otherwise
2320 static int hls_nal_unit(HEVCContext *s)
2322 GetBitContext *gb = &s->HEVClc.gb;
2325 if (get_bits1(gb) != 0)
2326 return AVERROR_INVALIDDATA;
2328 s->nal_unit_type = get_bits(gb, 6);
2330 nuh_layer_id = get_bits(gb, 6);
2331 s->temporal_id = get_bits(gb, 3) - 1;
2332 if (s->temporal_id < 0)
2333 return AVERROR_INVALIDDATA;
2335 av_log(s->avctx, AV_LOG_DEBUG,
2336 "nal_unit_type: %d, nuh_layer_id: %dtemporal_id: %d\n",
2337 s->nal_unit_type, nuh_layer_id, s->temporal_id);
2339 return nuh_layer_id == 0;
2342 static void restore_tqb_pixels(HEVCContext *s)
2344 int min_pu_size = 1 << s->sps->log2_min_pu_size;
2347 for (c_idx = 0; c_idx < 3; c_idx++) {
2348 ptrdiff_t stride = s->frame->linesize[c_idx];
2349 int hshift = s->sps->hshift[c_idx];
2350 int vshift = s->sps->vshift[c_idx];
2351 for (y = 0; y < s->sps->min_pu_height; y++) {
2352 for (x = 0; x < s->sps->min_pu_width; x++) {
2353 if (s->is_pcm[y * s->sps->min_pu_width + x]) {
2355 int len = min_pu_size >> hshift;
2356 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)];
2357 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)];
2358 for (n = 0; n < (min_pu_size >> vshift); n++) {
2359 memcpy(dst, src, len);
2369 static int set_side_data(HEVCContext *s)
2371 AVFrame *out = s->ref->frame;
2373 if (s->sei_frame_packing_present &&
2374 s->frame_packing_arrangement_type >= 3 &&
2375 s->frame_packing_arrangement_type <= 5 &&
2376 s->content_interpretation_type > 0 &&
2377 s->content_interpretation_type < 3) {
2378 AVStereo3D *stereo = av_stereo3d_create_side_data(out);
2380 return AVERROR(ENOMEM);
2382 switch (s->frame_packing_arrangement_type) {
2384 if (s->quincunx_subsampling)
2385 stereo->type = AV_STEREO3D_SIDEBYSIDE_QUINCUNX;
2387 stereo->type = AV_STEREO3D_SIDEBYSIDE;
2390 stereo->type = AV_STEREO3D_TOPBOTTOM;
2393 stereo->type = AV_STEREO3D_FRAMESEQUENCE;
2397 if (s->content_interpretation_type == 2)
2398 stereo->flags = AV_STEREO3D_FLAG_INVERT;
2401 if (s->sei_display_orientation_present &&
2402 (s->sei_anticlockwise_rotation || s->sei_hflip || s->sei_vflip)) {
2403 double angle = s->sei_anticlockwise_rotation * 360 / (double) (1 << 16);
2404 AVFrameSideData *rotation = av_frame_new_side_data(out,
2405 AV_FRAME_DATA_DISPLAYMATRIX,
2406 sizeof(int32_t) * 9);
2408 return AVERROR(ENOMEM);
2410 av_display_rotation_set((int32_t *)rotation->data, angle);
2411 av_display_matrix_flip((int32_t *)rotation->data,
2412 s->sei_hflip, s->sei_vflip);
2418 static int hevc_frame_start(HEVCContext *s)
2420 HEVCLocalContext *lc = &s->HEVClc;
2423 memset(s->horizontal_bs, 0, 2 * s->bs_width * (s->bs_height + 1));
2424 memset(s->vertical_bs, 0, 2 * s->bs_width * (s->bs_height + 1));
2425 memset(s->cbf_luma, 0, s->sps->min_tb_width * s->sps->min_tb_height);
2426 memset(s->is_pcm, 0, s->sps->min_pu_width * s->sps->min_pu_height);
2428 lc->start_of_tiles_x = 0;
2430 s->first_nal_type = s->nal_unit_type;
2432 if (s->pps->tiles_enabled_flag)
2433 lc->end_of_tiles_x = s->pps->column_width[0] << s->sps->log2_ctb_size;
2435 ret = ff_hevc_set_new_ref(s, s->sps->sao_enabled ? &s->sao_frame : &s->frame,
2440 ret = ff_hevc_frame_rps(s);
2442 av_log(s->avctx, AV_LOG_ERROR, "Error constructing the frame RPS.\n");
2446 s->ref->frame->key_frame = IS_IRAP(s);
2448 ret = set_side_data(s);
2452 av_frame_unref(s->output_frame);
2453 ret = ff_hevc_output_frame(s, s->output_frame, 0);
2457 ff_thread_finish_setup(s->avctx);
2463 ff_thread_report_progress(&s->ref->tf, INT_MAX, 0);
2468 static int decode_nal_unit(HEVCContext *s, const uint8_t *nal, int length)
2470 HEVCLocalContext *lc = &s->HEVClc;
2471 GetBitContext *gb = &lc->gb;
2472 int ctb_addr_ts, ret;
2474 ret = init_get_bits8(gb, nal, length);
2478 ret = hls_nal_unit(s);
2480 av_log(s->avctx, AV_LOG_ERROR, "Invalid NAL unit %d, skipping.\n",
2486 switch (s->nal_unit_type) {
2488 ret = ff_hevc_decode_nal_vps(s);
2493 ret = ff_hevc_decode_nal_sps(s);
2498 ret = ff_hevc_decode_nal_pps(s);
2502 case NAL_SEI_PREFIX:
2503 case NAL_SEI_SUFFIX:
2504 ret = ff_hevc_decode_nal_sei(s);
2515 case NAL_BLA_W_RADL:
2517 case NAL_IDR_W_RADL:
2524 ret = hls_slice_header(s);
2528 if (s->max_ra == INT_MAX) {
2529 if (s->nal_unit_type == NAL_CRA_NUT || IS_BLA(s)) {
2533 s->max_ra = INT_MIN;
2537 if ((s->nal_unit_type == NAL_RASL_R || s->nal_unit_type == NAL_RASL_N) &&
2538 s->poc <= s->max_ra) {
2542 if (s->nal_unit_type == NAL_RASL_R && s->poc > s->max_ra)
2543 s->max_ra = INT_MIN;
2546 if (s->sh.first_slice_in_pic_flag) {
2547 ret = hevc_frame_start(s);
2550 } else if (!s->ref) {
2551 av_log(s->avctx, AV_LOG_ERROR, "First slice in a frame missing.\n");
2555 if (s->nal_unit_type != s->first_nal_type) {
2556 av_log(s->avctx, AV_LOG_ERROR,
2557 "Non-matching NAL types of the VCL NALUs: %d %d\n",
2558 s->first_nal_type, s->nal_unit_type);
2559 return AVERROR_INVALIDDATA;
2562 if (!s->sh.dependent_slice_segment_flag &&
2563 s->sh.slice_type != I_SLICE) {
2564 ret = ff_hevc_slice_rpl(s);
2566 av_log(s->avctx, AV_LOG_WARNING,
2567 "Error constructing the reference lists for the current slice.\n");
2572 ctb_addr_ts = hls_slice_data(s);
2573 if (ctb_addr_ts >= (s->sps->ctb_width * s->sps->ctb_height)) {
2575 if ((s->pps->transquant_bypass_enable_flag ||
2576 (s->sps->pcm.loop_filter_disable_flag && s->sps->pcm_enabled_flag)) &&
2577 s->sps->sao_enabled)
2578 restore_tqb_pixels(s);
2581 if (ctb_addr_ts < 0) {
2588 s->seq_decode = (s->seq_decode + 1) & 0xff;
2589 s->max_ra = INT_MAX;
2595 av_log(s->avctx, AV_LOG_INFO,
2596 "Skipping NAL unit %d\n", s->nal_unit_type);
2601 if (s->avctx->err_recognition & AV_EF_EXPLODE)
2606 /* FIXME: This is adapted from ff_h264_decode_nal, avoiding duplication
2607 * between these functions would be nice. */
2608 static int extract_rbsp(const uint8_t *src, int length,
2614 #define STARTCODE_TEST \
2615 if (i + 2 < length && src[i + 1] == 0 && src[i + 2] <= 3) { \
2616 if (src[i + 2] != 3) { \
2617 /* startcode, so we must be past the end */ \
2622 #if HAVE_FAST_UNALIGNED
2623 #define FIND_FIRST_ZERO \
2624 if (i > 0 && !src[i]) \
2629 for (i = 0; i + 1 < length; i += 9) {
2630 if (!((~AV_RN64A(src + i) &
2631 (AV_RN64A(src + i) - 0x0100010001000101ULL)) &
2632 0x8000800080008080ULL))
2639 for (i = 0; i + 1 < length; i += 5) {
2640 if (!((~AV_RN32A(src + i) &
2641 (AV_RN32A(src + i) - 0x01000101U)) &
2648 #endif /* HAVE_FAST_64BIT */
2650 for (i = 0; i + 1 < length; i += 2) {
2653 if (i > 0 && src[i - 1] == 0)
2657 #endif /* HAVE_FAST_UNALIGNED */
2659 if (i >= length - 1) { // no escaped 0
2665 av_fast_malloc(&nal->rbsp_buffer, &nal->rbsp_buffer_size,
2666 length + FF_INPUT_BUFFER_PADDING_SIZE);
2667 if (!nal->rbsp_buffer)
2668 return AVERROR(ENOMEM);
2670 dst = nal->rbsp_buffer;
2672 memcpy(dst, src, i);
2674 while (si + 2 < length) {
2675 // remove escapes (very rare 1:2^22)
2676 if (src[si + 2] > 3) {
2677 dst[di++] = src[si++];
2678 dst[di++] = src[si++];
2679 } else if (src[si] == 0 && src[si + 1] == 0) {
2680 if (src[si + 2] == 3) { // escape
2686 } else // next start code
2690 dst[di++] = src[si++];
2693 dst[di++] = src[si++];
2696 memset(dst + di, 0, FF_INPUT_BUFFER_PADDING_SIZE);
2703 static int decode_nal_units(HEVCContext *s, const uint8_t *buf, int length)
2705 int i, consumed, ret = 0;
2710 /* split the input packet into NAL units, so we know the upper bound on the
2711 * number of slices in the frame */
2713 while (length >= 4) {
2715 int extract_length = 0;
2719 for (i = 0; i < s->nal_length_size; i++)
2720 extract_length = (extract_length << 8) | buf[i];
2721 buf += s->nal_length_size;
2722 length -= s->nal_length_size;
2724 if (extract_length > length) {
2725 av_log(s->avctx, AV_LOG_ERROR, "Invalid NAL unit size.\n");
2726 ret = AVERROR_INVALIDDATA;
2735 if (buf[0] != 0 || buf[1] != 0 || buf[2] != 1) {
2736 ret = AVERROR_INVALIDDATA;
2742 extract_length = length;
2745 if (s->nals_allocated < s->nb_nals + 1) {
2746 int new_size = s->nals_allocated + 1;
2747 HEVCNAL *tmp = av_realloc_array(s->nals, new_size, sizeof(*tmp));
2749 ret = AVERROR(ENOMEM);
2753 memset(s->nals + s->nals_allocated, 0,
2754 (new_size - s->nals_allocated) * sizeof(*tmp));
2755 s->nals_allocated = new_size;
2757 nal = &s->nals[s->nb_nals++];
2759 consumed = extract_rbsp(buf, extract_length, nal);
2765 ret = init_get_bits8(&s->HEVClc.gb, nal->data, nal->size);
2770 if (s->nal_unit_type == NAL_EOB_NUT ||
2771 s->nal_unit_type == NAL_EOS_NUT)
2778 /* parse the NAL units */
2779 for (i = 0; i < s->nb_nals; i++) {
2780 int ret = decode_nal_unit(s, s->nals[i].data, s->nals[i].size);
2782 av_log(s->avctx, AV_LOG_WARNING,
2783 "Error parsing NAL unit #%d.\n", i);
2790 ff_thread_report_progress(&s->ref->tf, INT_MAX, 0);
2795 static void print_md5(void *log_ctx, int level, uint8_t md5[16])
2798 for (i = 0; i < 16; i++)
2799 av_log(log_ctx, level, "%02"PRIx8, md5[i]);
2802 static int verify_md5(HEVCContext *s, AVFrame *frame)
2804 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
2809 return AVERROR(EINVAL);
2811 pixel_shift = desc->comp[0].depth_minus1 > 7;
2813 av_log(s->avctx, AV_LOG_DEBUG, "Verifying checksum for frame with POC %d: ",
2816 /* the checksums are LE, so we have to byteswap for >8bpp formats
2819 if (pixel_shift && !s->checksum_buf) {
2820 av_fast_malloc(&s->checksum_buf, &s->checksum_buf_size,
2821 FFMAX3(frame->linesize[0], frame->linesize[1],
2822 frame->linesize[2]));
2823 if (!s->checksum_buf)
2824 return AVERROR(ENOMEM);
2828 for (i = 0; frame->data[i]; i++) {
2829 int width = s->avctx->coded_width;
2830 int height = s->avctx->coded_height;
2831 int w = (i == 1 || i == 2) ? (width >> desc->log2_chroma_w) : width;
2832 int h = (i == 1 || i == 2) ? (height >> desc->log2_chroma_h) : height;
2835 av_md5_init(s->md5_ctx);
2836 for (j = 0; j < h; j++) {
2837 const uint8_t *src = frame->data[i] + j * frame->linesize[i];
2840 s->bdsp.bswap16_buf((uint16_t *) s->checksum_buf,
2841 (const uint16_t *) src, w);
2842 src = s->checksum_buf;
2845 av_md5_update(s->md5_ctx, src, w << pixel_shift);
2847 av_md5_final(s->md5_ctx, md5);
2849 if (!memcmp(md5, s->md5[i], 16)) {
2850 av_log (s->avctx, AV_LOG_DEBUG, "plane %d - correct ", i);
2851 print_md5(s->avctx, AV_LOG_DEBUG, md5);
2852 av_log (s->avctx, AV_LOG_DEBUG, "; ");
2854 av_log (s->avctx, AV_LOG_ERROR, "mismatching checksum of plane %d - ", i);
2855 print_md5(s->avctx, AV_LOG_ERROR, md5);
2856 av_log (s->avctx, AV_LOG_ERROR, " != ");
2857 print_md5(s->avctx, AV_LOG_ERROR, s->md5[i]);
2858 av_log (s->avctx, AV_LOG_ERROR, "\n");
2859 return AVERROR_INVALIDDATA;
2863 av_log(s->avctx, AV_LOG_DEBUG, "\n");
2868 static int hevc_decode_frame(AVCodecContext *avctx, void *data, int *got_output,
2872 HEVCContext *s = avctx->priv_data;
2875 ret = ff_hevc_output_frame(s, data, 1);
2884 ret = decode_nal_units(s, avpkt->data, avpkt->size);
2888 /* verify the SEI checksum */
2889 if (avctx->err_recognition & AV_EF_CRCCHECK && s->is_decoded &&
2891 ret = verify_md5(s, s->ref->frame);
2892 if (ret < 0 && avctx->err_recognition & AV_EF_EXPLODE) {
2893 ff_hevc_unref_frame(s, s->ref, ~0);
2899 if (s->is_decoded) {
2900 av_log(avctx, AV_LOG_DEBUG, "Decoded frame with POC %d.\n", s->poc);
2904 if (s->output_frame->buf[0]) {
2905 av_frame_move_ref(data, s->output_frame);
2912 static int hevc_ref_frame(HEVCContext *s, HEVCFrame *dst, HEVCFrame *src)
2914 int ret = ff_thread_ref_frame(&dst->tf, &src->tf);
2918 dst->tab_mvf_buf = av_buffer_ref(src->tab_mvf_buf);
2919 if (!dst->tab_mvf_buf)
2921 dst->tab_mvf = src->tab_mvf;
2923 dst->rpl_tab_buf = av_buffer_ref(src->rpl_tab_buf);
2924 if (!dst->rpl_tab_buf)
2926 dst->rpl_tab = src->rpl_tab;
2928 dst->rpl_buf = av_buffer_ref(src->rpl_buf);
2932 dst->poc = src->poc;
2933 dst->ctb_count = src->ctb_count;
2934 dst->window = src->window;
2935 dst->flags = src->flags;
2936 dst->sequence = src->sequence;
2940 ff_hevc_unref_frame(s, dst, ~0);
2941 return AVERROR(ENOMEM);
2944 static av_cold int hevc_decode_free(AVCodecContext *avctx)
2946 HEVCContext *s = avctx->priv_data;
2951 av_freep(&s->md5_ctx);
2953 av_frame_free(&s->tmp_frame);
2954 av_frame_free(&s->output_frame);
2956 for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
2957 ff_hevc_unref_frame(s, &s->DPB[i], ~0);
2958 av_frame_free(&s->DPB[i].frame);
2961 for (i = 0; i < FF_ARRAY_ELEMS(s->vps_list); i++)
2962 av_buffer_unref(&s->vps_list[i]);
2963 for (i = 0; i < FF_ARRAY_ELEMS(s->sps_list); i++)
2964 av_buffer_unref(&s->sps_list[i]);
2965 for (i = 0; i < FF_ARRAY_ELEMS(s->pps_list); i++)
2966 av_buffer_unref(&s->pps_list[i]);
2968 for (i = 0; i < s->nals_allocated; i++)
2969 av_freep(&s->nals[i].rbsp_buffer);
2971 s->nals_allocated = 0;
2976 static av_cold int hevc_init_context(AVCodecContext *avctx)
2978 HEVCContext *s = avctx->priv_data;
2983 s->tmp_frame = av_frame_alloc();
2987 s->output_frame = av_frame_alloc();
2988 if (!s->output_frame)
2991 for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
2992 s->DPB[i].frame = av_frame_alloc();
2993 if (!s->DPB[i].frame)
2995 s->DPB[i].tf.f = s->DPB[i].frame;
2998 s->max_ra = INT_MAX;
3000 s->md5_ctx = av_md5_alloc();
3004 ff_bswapdsp_init(&s->bdsp);
3006 s->context_initialized = 1;
3011 hevc_decode_free(avctx);
3012 return AVERROR(ENOMEM);
3015 static int hevc_update_thread_context(AVCodecContext *dst,
3016 const AVCodecContext *src)
3018 HEVCContext *s = dst->priv_data;
3019 HEVCContext *s0 = src->priv_data;
3022 if (!s->context_initialized) {
3023 ret = hevc_init_context(dst);
3028 for (i = 0; i < FF_ARRAY_ELEMS(s->DPB); i++) {
3029 ff_hevc_unref_frame(s, &s->DPB[i], ~0);
3030 if (s0->DPB[i].frame->buf[0]) {
3031 ret = hevc_ref_frame(s, &s->DPB[i], &s0->DPB[i]);
3037 for (i = 0; i < FF_ARRAY_ELEMS(s->vps_list); i++) {
3038 av_buffer_unref(&s->vps_list[i]);
3039 if (s0->vps_list[i]) {
3040 s->vps_list[i] = av_buffer_ref(s0->vps_list[i]);
3041 if (!s->vps_list[i])
3042 return AVERROR(ENOMEM);
3046 for (i = 0; i < FF_ARRAY_ELEMS(s->sps_list); i++) {
3047 av_buffer_unref(&s->sps_list[i]);
3048 if (s0->sps_list[i]) {
3049 s->sps_list[i] = av_buffer_ref(s0->sps_list[i]);
3050 if (!s->sps_list[i])
3051 return AVERROR(ENOMEM);
3055 for (i = 0; i < FF_ARRAY_ELEMS(s->pps_list); i++) {
3056 av_buffer_unref(&s->pps_list[i]);
3057 if (s0->pps_list[i]) {
3058 s->pps_list[i] = av_buffer_ref(s0->pps_list[i]);
3059 if (!s->pps_list[i])
3060 return AVERROR(ENOMEM);
3064 if (s->sps != s0->sps)
3065 ret = set_sps(s, s0->sps);
3067 s->seq_decode = s0->seq_decode;
3068 s->seq_output = s0->seq_output;
3069 s->pocTid0 = s0->pocTid0;
3070 s->max_ra = s0->max_ra;
3072 s->is_nalff = s0->is_nalff;
3073 s->nal_length_size = s0->nal_length_size;
3076 s->seq_decode = (s->seq_decode + 1) & 0xff;
3077 s->max_ra = INT_MAX;
3083 static int hevc_decode_extradata(HEVCContext *s)
3085 AVCodecContext *avctx = s->avctx;
3089 bytestream2_init(&gb, avctx->extradata, avctx->extradata_size);
3091 if (avctx->extradata_size > 3 &&
3092 (avctx->extradata[0] || avctx->extradata[1] ||
3093 avctx->extradata[2] > 1)) {
3094 /* It seems the extradata is encoded as hvcC format.
3095 * Temporarily, we support configurationVersion==0 until 14496-15 3rd
3096 * is finalized. When finalized, configurationVersion will be 1 and we
3097 * can recognize hvcC by checking if avctx->extradata[0]==1 or not. */
3098 int i, j, num_arrays, nal_len_size;
3102 bytestream2_skip(&gb, 21);
3103 nal_len_size = (bytestream2_get_byte(&gb) & 3) + 1;
3104 num_arrays = bytestream2_get_byte(&gb);
3106 /* nal units in the hvcC always have length coded with 2 bytes,
3107 * so put a fake nal_length_size = 2 while parsing them */
3108 s->nal_length_size = 2;
3110 /* Decode nal units from hvcC. */
3111 for (i = 0; i < num_arrays; i++) {
3112 int type = bytestream2_get_byte(&gb) & 0x3f;
3113 int cnt = bytestream2_get_be16(&gb);
3115 for (j = 0; j < cnt; j++) {
3116 // +2 for the nal size field
3117 int nalsize = bytestream2_peek_be16(&gb) + 2;
3118 if (bytestream2_get_bytes_left(&gb) < nalsize) {
3119 av_log(s->avctx, AV_LOG_ERROR,
3120 "Invalid NAL unit size in extradata.\n");
3121 return AVERROR_INVALIDDATA;
3124 ret = decode_nal_units(s, gb.buffer, nalsize);
3126 av_log(avctx, AV_LOG_ERROR,
3127 "Decoding nal unit %d %d from hvcC failed\n",
3131 bytestream2_skip(&gb, nalsize);
3135 /* Now store right nal length size, that will be used to parse
3137 s->nal_length_size = nal_len_size;
3140 ret = decode_nal_units(s, avctx->extradata, avctx->extradata_size);
3147 static av_cold int hevc_decode_init(AVCodecContext *avctx)
3149 HEVCContext *s = avctx->priv_data;
3152 ff_init_cabac_states();
3154 avctx->internal->allocate_progress = 1;
3156 ret = hevc_init_context(avctx);
3160 if (avctx->extradata_size > 0 && avctx->extradata) {
3161 ret = hevc_decode_extradata(s);
3163 hevc_decode_free(avctx);
3171 static av_cold int hevc_init_thread_copy(AVCodecContext *avctx)
3173 HEVCContext *s = avctx->priv_data;
3176 memset(s, 0, sizeof(*s));
3178 ret = hevc_init_context(avctx);
3185 static void hevc_decode_flush(AVCodecContext *avctx)
3187 HEVCContext *s = avctx->priv_data;
3188 ff_hevc_flush_dpb(s);
3189 s->max_ra = INT_MAX;
3192 #define OFFSET(x) offsetof(HEVCContext, x)
3193 #define PAR (AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
3195 static const AVProfile profiles[] = {
3196 { FF_PROFILE_HEVC_MAIN, "Main" },
3197 { FF_PROFILE_HEVC_MAIN_10, "Main 10" },
3198 { FF_PROFILE_HEVC_MAIN_STILL_PICTURE, "Main Still Picture" },
3199 { FF_PROFILE_UNKNOWN },
3202 static const AVOption options[] = {
3203 { "apply_defdispwin", "Apply default display window from VUI", OFFSET(apply_defdispwin),
3204 AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, PAR },
3208 static const AVClass hevc_decoder_class = {
3209 .class_name = "HEVC decoder",
3210 .item_name = av_default_item_name,
3212 .version = LIBAVUTIL_VERSION_INT,
3215 AVCodec ff_hevc_decoder = {
3217 .long_name = NULL_IF_CONFIG_SMALL("HEVC (High Efficiency Video Coding)"),
3218 .type = AVMEDIA_TYPE_VIDEO,
3219 .id = AV_CODEC_ID_HEVC,
3220 .priv_data_size = sizeof(HEVCContext),
3221 .priv_class = &hevc_decoder_class,
3222 .init = hevc_decode_init,
3223 .close = hevc_decode_free,
3224 .decode = hevc_decode_frame,
3225 .flush = hevc_decode_flush,
3226 .update_thread_context = hevc_update_thread_context,
3227 .init_thread_copy = hevc_init_thread_copy,
3228 .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY |
3229 CODEC_CAP_FRAME_THREADS,
3230 .profiles = NULL_IF_CONFIG_SMALL(profiles),