WebSVN – Kolibri OS – Blame – /contrib/sdk/sources/ffmpeg/libavcodec/hevc

Rev	Author	Line No.	Line
4349	Serge	1	/*
		2	* HEVC Parameter Set Decoding
		3	*
		4	* Copyright (C) 2012 - 2103 Guillaume Martres
		5	* Copyright (C) 2012 - 2103 Mickael Raulet
		6	* Copyright (C) 2012 - 2013 Gildas Cocherel
		7	* Copyright (C) 2013 Vittorio Giovara
		8	*
		9	* This file is part of FFmpeg.
		10	*
		11	* FFmpeg is free software; you can redistribute it and/or
		12	* modify it under the terms of the GNU Lesser General Public
		13	* License as published by the Free Software Foundation; either
		14	* version 2.1 of the License, or (at your option) any later version.
		15	*
		16	* FFmpeg is distributed in the hope that it will be useful,
		17	* but WITHOUT ANY WARRANTY; without even the implied warranty of
		18	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
		19	* Lesser General Public License for more details.
		20	*
		21	* You should have received a copy of the GNU Lesser General Public
		22	* License along with FFmpeg; if not, write to the Free Software
		23	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
		24	*/
		25
		26	#include "golomb.h"
		27	#include "libavutil/imgutils.h"
		28	#include "hevc.h"
		29
		30	static const uint8_t default_scaling_list_intra[] = {
		31	16, 16, 16, 16, 17, 18, 21, 24,
		32	16, 16, 16, 16, 17, 19, 22, 25,
		33	16, 16, 17, 18, 20, 22, 25, 29,
		34	16, 16, 18, 21, 24, 27, 31, 36,
		35	17, 17, 20, 24, 30, 35, 41, 47,
		36	18, 19, 22, 27, 35, 44, 54, 65,
		37	21, 22, 25, 31, 41, 54, 70, 88,
		38	24, 25, 29,36, 47, 65, 88, 115
		39	};
		40
		41	static const uint8_t default_scaling_list_inter[] = {
		42	16, 16, 16, 16, 17, 18, 20, 24,
		43	16, 16, 16, 17, 18, 20, 24, 25,
		44	16, 16, 17, 18, 20, 24, 25, 28,
		45	16, 17, 18, 20, 24, 25, 28, 33,
		46	17, 18, 20, 24, 25, 28, 33, 41,
		47	18, 20, 24, 25, 28, 33, 41, 54,
		48	20, 24, 25, 28, 33, 41, 54, 71,
		49	24, 25, 28, 33, 41, 54, 71, 91
		50	};
		51
		52	static const AVRational vui_sar[] = {
		53	{ 0, 1 },
		54	{ 1, 1 },
		55	{ 12, 11 },
		56	{ 10, 11 },
		57	{ 16, 11 },
		58	{ 40, 33 },
		59	{ 24, 11 },
		60	{ 20, 11 },
		61	{ 32, 11 },
		62	{ 80, 33 },
		63	{ 18, 11 },
		64	{ 15, 11 },
		65	{ 64, 33 },
		66	{ 160, 99 },
		67	{ 4, 3 },
		68	{ 3, 2 },
		69	{ 2, 1 },
		70	};
		71
		72	int ff_hevc_decode_short_term_rps(HEVCContext s, ShortTermRPS rps,
		73	const HEVCSPS *sps, int is_slice_header)
		74	{
		75	HEVCLocalContext *lc = s->HEVClc;
		76	uint8_t rps_predict = 0;
		77	int delta_poc;
		78	int k0 = 0;
		79	int k1 = 0;
		80	int k = 0;
		81	int i;
		82
		83	GetBitContext *gb = &lc->gb;
		84
		85	if (rps != sps->st_rps && sps->nb_st_rps)
		86	rps_predict = get_bits1(gb);
		87
		88	if (rps_predict) {
		89	const ShortTermRPS *rps_ridx;
		90	int delta_rps, abs_delta_rps;
		91	uint8_t use_delta_flag = 0;
		92	uint8_t delta_rps_sign;
		93
		94	if (is_slice_header) {
		95	int delta_idx = get_ue_golomb_long(gb) + 1;
		96	if (delta_idx > sps->nb_st_rps) {
		97	av_log(s->avctx, AV_LOG_ERROR, "Invalid value of delta_idx "
		98	"in slice header RPS: %d > %d.\n", delta_idx,
		99	sps->nb_st_rps);
		100	return AVERROR_INVALIDDATA;
		101	}
		102	rps_ridx = &sps->st_rps[sps->nb_st_rps - delta_idx];
		103	} else
		104	rps_ridx = &sps->st_rps[rps - sps->st_rps - 1];
		105
		106	delta_rps_sign = get_bits1(gb);
		107	abs_delta_rps = get_ue_golomb_long(gb) + 1;
		108	delta_rps = (1 - (delta_rps_sign << 1)) * abs_delta_rps;
		109	for (i = 0; i <= rps_ridx->num_delta_pocs; i++) {
		110	int used = rps->used[k] = get_bits1(gb);
		111
		112	if (!used)
		113	use_delta_flag = get_bits1(gb);
		114
		115	if (used \|\| use_delta_flag) {
		116	if (i < rps_ridx->num_delta_pocs)
		117	delta_poc = delta_rps + rps_ridx->delta_poc[i];
		118	else
		119	delta_poc = delta_rps;
		120	rps->delta_poc[k] = delta_poc;
		121	if (delta_poc < 0)
		122	k0++;
		123	else
		124	k1++;
		125	k++;
		126	}
		127	}
		128
		129	rps->num_delta_pocs = k;
		130	rps->num_negative_pics = k0;
		131	// sort in increasing order (smallest first)
		132	if (rps->num_delta_pocs != 0) {
		133	int used, tmp;
		134	for (i = 1; i < rps->num_delta_pocs; i++) {
		135	delta_poc = rps->delta_poc[i];
		136	used = rps->used[i];
		137	for (k = i-1 ; k >= 0; k--) {
		138	tmp = rps->delta_poc[k];
		139	if (delta_poc < tmp ) {
		140	rps->delta_poc[k+1] = tmp;
		141	rps->used[k+1] = rps->used[k];
		142	rps->delta_poc[k] = delta_poc;
		143	rps->used[k] = used;
		144	}
		145	}
		146	}
		147	}
		148	if ((rps->num_negative_pics >> 1) != 0) {
		149	int used;
		150	k = rps->num_negative_pics - 1;
		151	// flip the negative values to largest first
		152	for (i = 0; i < rps->num_negative_pics>>1; i++) {
		153	delta_poc = rps->delta_poc[i];
		154	used = rps->used[i];
		155	rps->delta_poc[i] = rps->delta_poc[k];
		156	rps->used[i] = rps->used[k];
		157	rps->delta_poc[k] = delta_poc;
		158	rps->used[k] = used;
		159	k--;
		160	}
		161	}
		162	} else {
		163	unsigned int prev, nb_positive_pics;
		164	rps->num_negative_pics = get_ue_golomb_long(gb);
		165	nb_positive_pics = get_ue_golomb_long(gb);
		166
		167	if (rps->num_negative_pics >= MAX_REFS \|\|
		168	nb_positive_pics >= MAX_REFS) {
		169	av_log(s->avctx, AV_LOG_ERROR, "Too many refs in a short term RPS.\n");
		170	return AVERROR_INVALIDDATA;
		171	}
		172
		173	rps->num_delta_pocs = rps->num_negative_pics + nb_positive_pics;
		174	if (rps->num_delta_pocs) {
		175	prev = 0;
		176	for (i = 0; i < rps->num_negative_pics; i++) {
		177	delta_poc = get_ue_golomb_long(gb) + 1;
		178	prev -= delta_poc;
		179	rps->delta_poc[i] = prev;
		180	rps->used[i] = get_bits1(gb);
		181	}
		182	prev = 0;
		183	for (i = 0; i < nb_positive_pics; i++) {
		184	delta_poc = get_ue_golomb_long(gb) + 1;
		185	prev += delta_poc;
		186	rps->delta_poc[rps->num_negative_pics + i] = prev;
		187	rps->used[rps->num_negative_pics + i] = get_bits1(gb);
		188	}
		189	}
		190	}
		191	return 0;
		192	}
		193
		194	static int decode_profile_tier_level(HEVCLocalContext lc, PTL ptl, int max_num_sub_layers)
		195	{
		196	int i, j;
		197	GetBitContext *gb = &lc->gb;
		198
		199	ptl->general_profile_space = get_bits(gb, 2);
		200	ptl->general_tier_flag = get_bits1(gb);
		201	ptl->general_profile_idc = get_bits(gb, 5);
		202	for (i = 0; i < 32; i++)
		203	ptl->general_profile_compatibility_flag[i] = get_bits1(gb);
		204	skip_bits1(gb);// general_progressive_source_flag
		205	skip_bits1(gb);// general_interlaced_source_flag
		206	skip_bits1(gb);// general_non_packed_constraint_flag
		207	skip_bits1(gb);// general_frame_only_constraint_flag
		208	if (get_bits(gb, 16) != 0) // XXX_reserved_zero_44bits[0..15]
		209	return -1;
		210	if (get_bits(gb, 16) != 0) // XXX_reserved_zero_44bits[16..31]
		211	return -1;
		212	if (get_bits(gb, 12) != 0) // XXX_reserved_zero_44bits[32..43]
		213	return -1;
		214
		215	ptl->general_level_idc = get_bits(gb, 8);
		216	for (i = 0; i < max_num_sub_layers - 1; i++) {
		217	ptl->sub_layer_profile_present_flag[i] = get_bits1(gb);
		218	ptl->sub_layer_level_present_flag[i] = get_bits1(gb);
		219	}
		220	if (max_num_sub_layers - 1 > 0)
		221	for (i = max_num_sub_layers - 1; i < 8; i++)
		222	skip_bits(gb, 2); // reserved_zero_2bits[i]
		223	for (i = 0; i < max_num_sub_layers - 1; i++) {
		224	if (ptl->sub_layer_profile_present_flag[i]) {
		225	ptl->sub_layer_profile_space[i] = get_bits(gb, 2);
		226	ptl->sub_layer_tier_flag[i] = get_bits(gb, 1);
		227	ptl->sub_layer_profile_idc[i] = get_bits(gb, 5);
		228	for (j = 0; j < 32; j++)
		229	ptl->sub_layer_profile_compatibility_flags[i][j] = get_bits1(gb);
		230	skip_bits1(gb);// sub_layer_progressive_source_flag
		231	skip_bits1(gb);// sub_layer_interlaced_source_flag
		232	skip_bits1(gb);// sub_layer_non_packed_constraint_flag
		233	skip_bits1(gb);// sub_layer_frame_only_constraint_flag
		234
		235	if (get_bits(gb, 16) != 0) // sub_layer_reserved_zero_44bits[0..15]
		236	return -1;
		237	if (get_bits(gb, 16) != 0) // sub_layer_reserved_zero_44bits[16..31]
		238	return -1;
		239	if (get_bits(gb, 12) != 0) // sub_layer_reserved_zero_44bits[32..43]
		240	return -1;
		241	}
		242	if (ptl->sub_layer_level_present_flag[i])
		243	ptl->sub_layer_level_idc[i] = get_bits(gb, 8);
		244	}
		245	return 0;
		246	}
		247
		248	static void decode_sublayer_hrd(HEVCContext *s, int nb_cpb, int subpic_params_present)
		249	{
		250	GetBitContext *gb = &s->HEVClc->gb;
		251	int i;
		252
		253	for (i = 0; i < nb_cpb; i++) {
		254	get_ue_golomb_long(gb); // bit_rate_value_minus1
		255	get_ue_golomb_long(gb); // cpb_size_value_minus1
		256
		257	if (subpic_params_present) {
		258	get_ue_golomb_long(gb); // cpb_size_du_value_minus1
		259	get_ue_golomb_long(gb); // bit_rate_du_value_minus1
		260	}
		261	skip_bits1(gb); // cbr_flag
		262	}
		263	}
		264
		265	static void decode_hrd(HEVCContext *s, int common_inf_present, int max_sublayers)
		266	{
		267	GetBitContext *gb = &s->HEVClc->gb;
		268	int nal_params_present = 0, vcl_params_present = 0;
		269	int subpic_params_present = 0;
		270	int i;
		271
		272	if (common_inf_present) {
		273	nal_params_present = get_bits1(gb);
		274	vcl_params_present = get_bits1(gb);
		275
		276	if (nal_params_present \|\| vcl_params_present) {
		277	subpic_params_present = get_bits1(gb);
		278
		279	if (subpic_params_present) {
		280	skip_bits(gb, 8); // tick_divisor_minus2
		281	skip_bits(gb, 5); // du_cpb_removal_delay_increment_length_minus1
		282	skip_bits(gb, 1); // sub_pic_cpb_params_in_pic_timing_sei_flag
		283	skip_bits(gb, 5); // dpb_output_delay_du_length_minus1
		284	}
		285
		286	skip_bits(gb, 4); // bit_rate_scale
		287	skip_bits(gb, 4); // cpb_size_scale
		288
		289	if (subpic_params_present)
		290	skip_bits(gb, 4); // cpb_size_du_scale
		291
		292	skip_bits(gb, 5); // initial_cpb_removal_delay_length_minus1
		293	skip_bits(gb, 5); // au_cpb_removal_delay_length_minus1
		294	skip_bits(gb, 5); // dpb_output_delay_length_minus1
		295	}
		296	}
		297
		298	for (i = 0; i < max_sublayers; i++) {
		299	int low_delay = 0;
		300	int nb_cpb = 1;
		301	int fixed_rate = get_bits1(gb);
		302
		303	if (!fixed_rate)
		304	fixed_rate = get_bits1(gb);
		305
		306	if (fixed_rate)
		307	get_ue_golomb_long(gb); // elemental_duration_in_tc_minus1
		308	else
		309	low_delay = get_bits1(gb);
		310
		311	if (!low_delay)
		312	nb_cpb = get_ue_golomb_long(gb) + 1;
		313
		314	if (nal_params_present)
		315	decode_sublayer_hrd(s, nb_cpb, subpic_params_present);
		316	if (vcl_params_present)
		317	decode_sublayer_hrd(s, nb_cpb, subpic_params_present);
		318	}
		319	}
		320
		321	int ff_hevc_decode_nal_vps(HEVCContext *s)
		322	{
		323	int i,j;
		324	GetBitContext *gb = &s->HEVClc->gb;
		325	int vps_id = 0;
		326	VPS *vps;
		327
		328	av_log(s->avctx, AV_LOG_DEBUG, "Decoding VPS\n");
		329
		330	vps = av_mallocz(sizeof(*vps));
		331	if (!vps)
		332	return AVERROR(ENOMEM);
		333
		334	vps_id = get_bits(gb, 4);
		335	if (vps_id >= MAX_VPS_COUNT) {
		336	av_log(s->avctx, AV_LOG_ERROR, "VPS id out of range: %d\n", vps_id);
		337	goto err;
		338	}
		339
		340	if (get_bits(gb, 2) != 3) { // vps_reserved_three_2bits
		341	av_log(s->avctx, AV_LOG_ERROR, "vps_reserved_three_2bits is not three\n");
		342	goto err;
		343	}
		344
		345	vps->vps_max_layers = get_bits(gb, 6) + 1;
		346	vps->vps_max_sub_layers = get_bits(gb, 3) + 1;
		347	vps->vps_temporal_id_nesting_flag = get_bits1(gb);
		348
		349	if (get_bits(gb, 16) != 0xffff) { // vps_reserved_ffff_16bits
		350	av_log(s->avctx, AV_LOG_ERROR, "vps_reserved_ffff_16bits is not 0xffff\n");
		351	goto err;
		352	}
		353
		354	if (vps->vps_max_sub_layers > MAX_SUB_LAYERS) {
		355	av_log(s->avctx, AV_LOG_ERROR, "vps_max_sub_layers out of range: %d\n",
		356	vps->vps_max_sub_layers);
		357	goto err;
		358	}
		359
		360	if (decode_profile_tier_level(s->HEVClc, &vps->ptl, vps->vps_max_sub_layers) < 0) {
		361	av_log(s->avctx, AV_LOG_ERROR, "Error decoding profile tier level.\n");
		362	goto err;
		363	}
		364	vps->vps_sub_layer_ordering_info_present_flag = get_bits1(gb);
		365
		366	i = vps->vps_sub_layer_ordering_info_present_flag ? 0 : vps->vps_max_sub_layers - 1;
		367	for (; i < vps->vps_max_sub_layers; i++) {
		368	vps->vps_max_dec_pic_buffering[i] = get_ue_golomb_long(gb) + 1;
		369	vps->vps_num_reorder_pics[i] = get_ue_golomb_long(gb);
		370	vps->vps_max_latency_increase[i] = get_ue_golomb_long(gb) - 1;
		371
		372	if (vps->vps_max_dec_pic_buffering[i] > MAX_DPB_SIZE) {
		373	av_log(s->avctx, AV_LOG_ERROR, "vps_max_dec_pic_buffering_minus1 out of range: %d\n",
		374	vps->vps_max_dec_pic_buffering[i] - 1);
		375	goto err;
		376	}
		377	if (vps->vps_num_reorder_pics[i] > vps->vps_max_dec_pic_buffering[i] - 1) {
		378	av_log(s->avctx, AV_LOG_ERROR, "vps_max_num_reorder_pics out of range: %d\n",
		379	vps->vps_num_reorder_pics[i]);
		380	goto err;
		381	}
		382	}
		383
		384	vps->vps_max_layer_id = get_bits(gb, 6);
		385	vps->vps_num_layer_sets = get_ue_golomb_long(gb) + 1;
		386	for (i = 1; i < vps->vps_num_layer_sets; i++)
		387	for (j = 0; j <= vps->vps_max_layer_id; j++)
		388	skip_bits(gb, 1); // layer_id_included_flag[i][j]
		389
		390	vps->vps_timing_info_present_flag = get_bits1(gb);
		391	if (vps->vps_timing_info_present_flag) {
		392	vps->vps_num_units_in_tick = get_bits_long(gb, 32);
		393	vps->vps_time_scale = get_bits_long(gb, 32);
		394	vps->vps_poc_proportional_to_timing_flag = get_bits1(gb);
		395	if (vps->vps_poc_proportional_to_timing_flag)
		396	vps->vps_num_ticks_poc_diff_one = get_ue_golomb_long(gb) + 1;
		397	vps->vps_num_hrd_parameters = get_ue_golomb_long(gb);
		398	for (i = 0; i < vps->vps_num_hrd_parameters; i++) {
		399	int common_inf_present = 1;
		400
		401	get_ue_golomb_long(gb); // hrd_layer_set_idx
		402	if (i)
		403	common_inf_present = get_bits1(gb);
		404	decode_hrd(s, common_inf_present, vps->vps_max_sub_layers);
		405	}
		406	}
		407	get_bits1(gb); /* vps_extension_flag */
		408
		409	av_free(s->vps_list[vps_id]);
		410	s->vps_list[vps_id] = vps;
		411	return 0;
		412
		413	err:
		414	av_free(vps);
		415	return AVERROR_INVALIDDATA;
		416	}
		417
		418	static void decode_vui(HEVCContext s, HEVCSPS sps)
		419	{
		420	VUI *vui = &sps->vui;
		421	GetBitContext *gb = &s->HEVClc->gb;
		422	int sar_present;
		423
		424	av_log(s->avctx, AV_LOG_DEBUG, "Decoding VUI\n");
		425
		426	sar_present = get_bits1(gb);
		427	if (sar_present) {
		428	uint8_t sar_idx = get_bits(gb, 8);
		429	if (sar_idx < FF_ARRAY_ELEMS(vui_sar))
		430	vui->sar = vui_sar[sar_idx];
		431	else if (sar_idx == 255) {
		432	vui->sar.num = get_bits(gb, 16);
		433	vui->sar.den = get_bits(gb, 16);
		434	} else
		435	av_log(s->avctx, AV_LOG_WARNING, "Unknown SAR index: %u.\n",
		436	sar_idx);
		437	}
		438
		439	vui->overscan_info_present_flag = get_bits1(gb);
		440	if (vui->overscan_info_present_flag)
		441	vui->overscan_appropriate_flag = get_bits1(gb);
		442
		443	vui->video_signal_type_present_flag = get_bits1(gb);
		444	if (vui->video_signal_type_present_flag) {
		445	vui->video_format = get_bits(gb, 3);
		446	vui->video_full_range_flag = get_bits1(gb);
		447	vui->colour_description_present_flag = get_bits1(gb);
		448	if (vui->colour_description_present_flag) {
		449	vui->colour_primaries = get_bits(gb, 8);
		450	vui->transfer_characteristic = get_bits(gb, 8);
		451	vui->matrix_coeffs = get_bits(gb, 8);
		452	}
		453	}
		454
		455	vui->chroma_loc_info_present_flag = get_bits1(gb);
		456	if (vui->chroma_loc_info_present_flag) {
		457	vui->chroma_sample_loc_type_top_field = get_ue_golomb_long(gb);
		458	vui->chroma_sample_loc_type_bottom_field = get_ue_golomb_long(gb);
		459	}
		460
		461	vui->neutra_chroma_indication_flag = get_bits1(gb);
		462	vui->field_seq_flag = get_bits1(gb);
		463	vui->frame_field_info_present_flag = get_bits1(gb);
		464
		465	vui->default_display_window_flag = get_bits1(gb);
		466	if (vui->default_display_window_flag) {
		467	//TODO: * 2 is only valid for 420
		468	vui->def_disp_win.left_offset = get_ue_golomb_long(gb) * 2;
		469	vui->def_disp_win.right_offset = get_ue_golomb_long(gb) * 2;
		470	vui->def_disp_win.top_offset = get_ue_golomb_long(gb) * 2;
		471	vui->def_disp_win.bottom_offset = get_ue_golomb_long(gb) * 2;
		472
		473	if (s->strict_def_disp_win &&
		474	s->avctx->flags2 & CODEC_FLAG2_IGNORE_CROP) {
		475	av_log(s->avctx, AV_LOG_DEBUG,
		476	"discarding vui default display window, "
		477	"original values are l:%u r:%u t:%u b:%u\n",
		478	vui->def_disp_win.left_offset,
		479	vui->def_disp_win.right_offset,
		480	vui->def_disp_win.top_offset,
		481	vui->def_disp_win.bottom_offset);
		482
		483	vui->def_disp_win.left_offset =
		484	vui->def_disp_win.right_offset =
		485	vui->def_disp_win.top_offset =
		486	vui->def_disp_win.bottom_offset = 0;
		487	}
		488	}
		489
		490	vui->vui_timing_info_present_flag = get_bits1(gb);
		491	if (vui->vui_timing_info_present_flag) {
		492	vui->vui_num_units_in_tick = get_bits(gb, 32);
		493	vui->vui_time_scale = get_bits(gb, 32);
		494	vui->vui_poc_proportional_to_timing_flag = get_bits1(gb);
		495	if (vui->vui_poc_proportional_to_timing_flag)
		496	vui->vui_num_ticks_poc_diff_one_minus1 = get_ue_golomb_long(gb);
		497	vui->vui_hrd_parameters_present_flag = get_bits1(gb);
		498	if (vui->vui_hrd_parameters_present_flag)
		499	decode_hrd(s, 1, sps->max_sub_layers);
		500	}
		501
		502	vui->bitstream_restriction_flag = get_bits1(gb);
		503	if (vui->bitstream_restriction_flag) {
		504	vui->tiles_fixed_structure_flag = get_bits1(gb);
		505	vui->motion_vectors_over_pic_boundaries_flag = get_bits1(gb);
		506	vui->restricted_ref_pic_lists_flag = get_bits1(gb);
		507	vui->min_spatial_segmentation_idc = get_ue_golomb_long(gb);
		508	vui->max_bytes_per_pic_denom = get_ue_golomb_long(gb);
		509	vui->max_bits_per_min_cu_denom = get_ue_golomb_long(gb);
		510	vui->log2_max_mv_length_horizontal = get_ue_golomb_long(gb);
		511	vui->log2_max_mv_length_vertical = get_ue_golomb_long(gb);
		512	}
		513	}
		514
		515	static void set_default_scaling_list_data(ScalingList *sl)
		516	{
		517	int matrixId;
		518
		519	for (matrixId = 0; matrixId < 6; matrixId++) {
		520	// 4x4 default is 16
		521	memset(sl->sl[0][matrixId], 16, 16);
		522	sl->sl_dc[0][matrixId] = 16; // default for 16x16
		523	sl->sl_dc[1][matrixId] = 16; // default for 32x32
		524	}
		525	memcpy(sl->sl[1][0], default_scaling_list_intra, 64);
		526	memcpy(sl->sl[1][1], default_scaling_list_intra, 64);
		527	memcpy(sl->sl[1][2], default_scaling_list_intra, 64);
		528	memcpy(sl->sl[1][3], default_scaling_list_inter, 64);
		529	memcpy(sl->sl[1][4], default_scaling_list_inter, 64);
		530	memcpy(sl->sl[1][5], default_scaling_list_inter, 64);
		531	memcpy(sl->sl[2][0], default_scaling_list_intra, 64);
		532	memcpy(sl->sl[2][1], default_scaling_list_intra, 64);
		533	memcpy(sl->sl[2][2], default_scaling_list_intra, 64);
		534	memcpy(sl->sl[2][3], default_scaling_list_inter, 64);
		535	memcpy(sl->sl[2][4], default_scaling_list_inter, 64);
		536	memcpy(sl->sl[2][5], default_scaling_list_inter, 64);
		537	memcpy(sl->sl[3][0], default_scaling_list_intra, 64);
		538	memcpy(sl->sl[3][1], default_scaling_list_inter, 64);
		539	}
		540
		541	static int scaling_list_data(HEVCContext s, ScalingList sl)
		542	{
		543	GetBitContext *gb = &s->HEVClc->gb;
		544	uint8_t scaling_list_pred_mode_flag[4][6];
		545	int32_t scaling_list_dc_coef[2][6];
		546
		547	int size_id, matrix_id, i, pos, delta;
		548	for (size_id = 0; size_id < 4; size_id++)
		549	for (matrix_id = 0; matrix_id < ((size_id == 3) ? 2 : 6); matrix_id++) {
		550	scaling_list_pred_mode_flag[size_id][matrix_id] = get_bits1(gb);
		551	if (!scaling_list_pred_mode_flag[size_id][matrix_id]) {
		552	delta = get_ue_golomb_long(gb);
		553	// Only need to handle non-zero delta. Zero means default, which should already be in the arrays.
		554	if (delta) {
		555	// Copy from previous array.
		556	if (matrix_id - delta < 0) {
		557	av_log(s->avctx, AV_LOG_ERROR,
		558	"Invalid delta in scaling list data: %d.\n", delta);
		559	return AVERROR_INVALIDDATA;
		560	}
		561
		562	memcpy(sl->sl[size_id][matrix_id],
		563	sl->sl[size_id][matrix_id - delta],
		564	size_id > 0 ? 64 : 16);
		565	if (size_id > 1)
		566	sl->sl_dc[size_id - 2][matrix_id] = sl->sl_dc[size_id - 2][matrix_id - delta];
		567	}
		568	} else {
		569	int next_coef;
		570	int coef_num;
		571	int32_t scaling_list_delta_coef;
		572
		573	next_coef = 8;
		574	coef_num = FFMIN(64, (1 << (4 + (size_id << 1))));
		575	if (size_id > 1) {
		576	scaling_list_dc_coef[size_id - 2][matrix_id] = get_se_golomb(gb) + 8;
		577	next_coef = scaling_list_dc_coef[size_id - 2][matrix_id];
		578	sl->sl_dc[size_id - 2][matrix_id] = next_coef;
		579	}
		580	for (i = 0; i < coef_num; i++) {
		581	if (size_id == 0)
		582	pos = 4 * ff_hevc_diag_scan4x4_y[i] + ff_hevc_diag_scan4x4_x[i];
		583	else
		584	pos = 8 * ff_hevc_diag_scan8x8_y[i] + ff_hevc_diag_scan8x8_x[i];
		585
		586	scaling_list_delta_coef = get_se_golomb(gb);
		587	next_coef = (next_coef + scaling_list_delta_coef + 256 ) % 256;
		588	sl->sl[size_id][matrix_id][pos] = next_coef;
		589	}
		590	}
		591	}
		592
		593	return 0;
		594	}
		595
		596	int ff_hevc_decode_nal_sps(HEVCContext *s)
		597	{
		598	const AVPixFmtDescriptor *desc;
		599	GetBitContext *gb = &s->HEVClc->gb;
		600	int ret = 0;
		601	int sps_id = 0;
		602	int log2_diff_max_min_transform_block_size;
		603	int bit_depth_chroma, start, vui_present, sublayer_ordering_info;
		604	int i;
		605
		606	HEVCSPS *sps;
		607	AVBufferRef sps_buf = av_buffer_allocz(sizeof(sps));
		608
		609	if (!sps_buf)
		610	return AVERROR(ENOMEM);
		611	sps = (HEVCSPS*)sps_buf->data;
		612
		613	av_log(s->avctx, AV_LOG_DEBUG, "Decoding SPS\n");
		614
		615	// Coded parameters
		616
		617	sps->vps_id = get_bits(gb, 4);
		618	if (sps->vps_id >= MAX_VPS_COUNT) {
		619	av_log(s->avctx, AV_LOG_ERROR, "VPS id out of range: %d\n", sps->vps_id);
		620	ret = AVERROR_INVALIDDATA;
		621	goto err;
		622	}
		623
		624	sps->max_sub_layers = get_bits(gb, 3) + 1;
		625	if (sps->max_sub_layers > MAX_SUB_LAYERS) {
		626	av_log(s->avctx, AV_LOG_ERROR, "sps_max_sub_layers out of range: %d\n",
		627	sps->max_sub_layers);
		628	ret = AVERROR_INVALIDDATA;
		629	goto err;
		630	}
		631
		632	skip_bits1(gb); // temporal_id_nesting_flag
		633	if (decode_profile_tier_level(s->HEVClc, &sps->ptl, sps->max_sub_layers) < 0) {
		634	av_log(s->avctx, AV_LOG_ERROR, "error decoding profile tier level\n");
		635	ret = AVERROR_INVALIDDATA;
		636	goto err;
		637	}
		638	sps_id = get_ue_golomb_long(gb);
		639	if (sps_id >= MAX_SPS_COUNT) {
		640	av_log(s->avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", sps_id);
		641	ret = AVERROR_INVALIDDATA;
		642	goto err;
		643	}
		644
		645	sps->chroma_format_idc = get_ue_golomb_long(gb);
		646	if (sps->chroma_format_idc != 1) {
		647	avpriv_report_missing_feature(s->avctx, "chroma_format_idc != 1\n");
		648	ret = AVERROR_INVALIDDATA;
		649	goto err;
		650	}
		651
		652	if (sps->chroma_format_idc == 3)
		653	sps->separate_colour_plane_flag = get_bits1(gb);
		654
		655	sps->width = get_ue_golomb_long(gb);
		656	sps->height = get_ue_golomb_long(gb);
		657	if ((ret = av_image_check_size(sps->width,
		658	sps->height, 0, s->avctx)) < 0)
		659	goto err;
		660
		661	if (get_bits1(gb)) { // pic_conformance_flag
		662	//TODO: * 2 is only valid for 420
		663	sps->pic_conf_win.left_offset = get_ue_golomb_long(gb) * 2;
		664	sps->pic_conf_win.right_offset = get_ue_golomb_long(gb) * 2;
		665	sps->pic_conf_win.top_offset = get_ue_golomb_long(gb) * 2;
		666	sps->pic_conf_win.bottom_offset = get_ue_golomb_long(gb) * 2;
		667
		668	if (s->avctx->flags2 & CODEC_FLAG2_IGNORE_CROP) {
		669	av_log(s->avctx, AV_LOG_DEBUG,
		670	"discarding sps conformance window, "
		671	"original values are l:%u r:%u t:%u b:%u\n",
		672	sps->pic_conf_win.left_offset,
		673	sps->pic_conf_win.right_offset,
		674	sps->pic_conf_win.top_offset,
		675	sps->pic_conf_win.bottom_offset);
		676
		677	sps->pic_conf_win.left_offset =
		678	sps->pic_conf_win.right_offset =
		679	sps->pic_conf_win.top_offset =
		680	sps->pic_conf_win.bottom_offset = 0;
		681	}
		682	sps->output_window = sps->pic_conf_win;
		683	}
		684
		685	sps->bit_depth = get_ue_golomb_long(gb) + 8;
		686	bit_depth_chroma = get_ue_golomb_long(gb) + 8;
		687	if (bit_depth_chroma != sps->bit_depth) {
		688	av_log(s->avctx, AV_LOG_ERROR,
		689	"Luma bit depth (%d) is different from chroma bit depth (%d), this is unsupported.\n",
		690	sps->bit_depth, bit_depth_chroma);
		691	ret = AVERROR_INVALIDDATA;
		692	goto err;
		693	}
		694
		695	if (sps->chroma_format_idc == 1) {
		696	switch (sps->bit_depth) {
		697	case 8: sps->pix_fmt = AV_PIX_FMT_YUV420P; break;
		698	case 9: sps->pix_fmt = AV_PIX_FMT_YUV420P9; break;
		699	case 10: sps->pix_fmt = AV_PIX_FMT_YUV420P10; break;
		700	default:
		701	av_log(s->avctx, AV_LOG_ERROR, "Unsupported bit depth: %d\n",
		702	sps->bit_depth);
		703	ret = AVERROR_PATCHWELCOME;
		704	goto err;
		705	}
		706	} else {
		707	av_log(s->avctx, AV_LOG_ERROR, "non-4:2:0 support is currently unspecified.\n");
		708	return AVERROR_PATCHWELCOME;
		709	}
		710
		711	desc = av_pix_fmt_desc_get(sps->pix_fmt);
		712	if (!desc) {
		713	ret = AVERROR(EINVAL);
		714	goto err;
		715	}
		716
		717	sps->hshift[0] = sps->vshift[0] = 0;
		718	sps->hshift[2] = sps->hshift[1] = desc->log2_chroma_w;
		719	sps->vshift[2] = sps->vshift[1] = desc->log2_chroma_h;
		720
		721	sps->pixel_shift = sps->bit_depth > 8;
		722
		723	sps->log2_max_poc_lsb = get_ue_golomb_long(gb) + 4;
		724	if (sps->log2_max_poc_lsb > 16) {
		725	av_log(s->avctx, AV_LOG_ERROR, "log2_max_pic_order_cnt_lsb_minus4 out range: %d\n",
		726	sps->log2_max_poc_lsb - 4);
		727	ret = AVERROR_INVALIDDATA;
		728	goto err;
		729	}
		730
		731	sublayer_ordering_info = get_bits1(gb);
		732	start = sublayer_ordering_info ? 0 : sps->max_sub_layers - 1;
		733	for (i = start; i < sps->max_sub_layers; i++) {
		734	sps->temporal_layer[i].max_dec_pic_buffering = get_ue_golomb_long(gb) + 1;
		735	sps->temporal_layer[i].num_reorder_pics = get_ue_golomb_long(gb);
		736	sps->temporal_layer[i].max_latency_increase = get_ue_golomb_long(gb) - 1;
		737	if (sps->temporal_layer[i].max_dec_pic_buffering > MAX_DPB_SIZE) {
		738	av_log(s->avctx, AV_LOG_ERROR, "sps_max_dec_pic_buffering_minus1 out of range: %d\n",
		739	sps->temporal_layer[i].max_dec_pic_buffering - 1);
		740	ret = AVERROR_INVALIDDATA;
		741	goto err;
		742	}
		743	if (sps->temporal_layer[i].num_reorder_pics > sps->temporal_layer[i].max_dec_pic_buffering - 1) {
		744	av_log(s->avctx, AV_LOG_ERROR, "sps_max_num_reorder_pics out of range: %d\n",
		745	sps->temporal_layer[i].num_reorder_pics);
		746	ret = AVERROR_INVALIDDATA;
		747	goto err;
		748	}
		749	}
		750
		751	if (!sublayer_ordering_info) {
		752	for (i = 0; i < start; i++){
		753	sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[start].max_dec_pic_buffering;
		754	sps->temporal_layer[i].num_reorder_pics = sps->temporal_layer[start].num_reorder_pics;
		755	sps->temporal_layer[i].max_latency_increase = sps->temporal_layer[start].max_latency_increase;
		756	}
		757	}
		758
		759	sps->log2_min_cb_size = get_ue_golomb_long(gb) + 3;
		760	sps->log2_diff_max_min_coding_block_size = get_ue_golomb_long(gb);
		761	sps->log2_min_tb_size = get_ue_golomb_long(gb) + 2;
		762	log2_diff_max_min_transform_block_size = get_ue_golomb_long(gb);
		763	sps->log2_max_trafo_size = log2_diff_max_min_transform_block_size + sps->log2_min_tb_size;
		764
		765	if (sps->log2_min_tb_size >= sps->log2_min_cb_size) {
		766	av_log(s->avctx, AV_LOG_ERROR, "Invalid value for log2_min_tb_size");
		767	ret = AVERROR_INVALIDDATA;
		768	goto err;
		769	}
		770	sps->max_transform_hierarchy_depth_inter = get_ue_golomb_long(gb);
		771	sps->max_transform_hierarchy_depth_intra = get_ue_golomb_long(gb);
		772
		773	sps->scaling_list_enable_flag = get_bits1(gb);
		774	if (sps->scaling_list_enable_flag) {
		775	set_default_scaling_list_data(&sps->scaling_list);
		776
		777	if (get_bits1(gb)) {
		778	ret = scaling_list_data(s, &sps->scaling_list);
		779	if (ret < 0)
		780	goto err;
		781	}
		782	}
		783
		784	sps->amp_enabled_flag = get_bits1(gb);
		785	sps->sao_enabled = get_bits1(gb);
		786
		787	sps->pcm_enabled_flag = get_bits1(gb);
		788	if (sps->pcm_enabled_flag) {
		789	sps->pcm.bit_depth = get_bits(gb, 4) + 1;
		790	sps->pcm.bit_depth_chroma = get_bits(gb, 4) + 1;
		791	sps->pcm.log2_min_pcm_cb_size = get_ue_golomb_long(gb) + 3;
		792	sps->pcm.log2_max_pcm_cb_size = sps->pcm.log2_min_pcm_cb_size +
		793	get_ue_golomb_long(gb);
		794	if (sps->pcm.bit_depth > sps->bit_depth) {
		795	av_log(s->avctx, AV_LOG_ERROR,
		796	"PCM bit depth (%d) is greater than normal bit depth (%d)\n",
		797	sps->pcm.bit_depth, sps->bit_depth);
		798	ret = AVERROR_INVALIDDATA;
		799	goto err;
		800	}
		801
		802	sps->pcm.loop_filter_disable_flag = get_bits1(gb);
		803	}
		804
		805	sps->nb_st_rps = get_ue_golomb_long(gb);
		806	if (sps->nb_st_rps > MAX_SHORT_TERM_RPS_COUNT) {
		807	av_log(s->avctx, AV_LOG_ERROR, "Too many short term RPS: %d.\n",
		808	sps->nb_st_rps);
		809	ret = AVERROR_INVALIDDATA;
		810	goto err;
		811	}
		812	for (i = 0; i < sps->nb_st_rps; i++) {
		813	if ((ret = ff_hevc_decode_short_term_rps(s, &sps->st_rps[i],
		814	sps, 0)) < 0)
		815	goto err;
		816	}
		817
		818	sps->long_term_ref_pics_present_flag = get_bits1(gb);
		819	if (sps->long_term_ref_pics_present_flag) {
		820	sps->num_long_term_ref_pics_sps = get_ue_golomb_long(gb);
		821	for (i = 0; i < sps->num_long_term_ref_pics_sps; i++) {
		822	sps->lt_ref_pic_poc_lsb_sps[i] = get_bits(gb, sps->log2_max_poc_lsb);
		823	sps->used_by_curr_pic_lt_sps_flag[i] = get_bits1(gb);
		824	}
		825	}
		826
		827	sps->sps_temporal_mvp_enabled_flag = get_bits1(gb);
		828	sps->sps_strong_intra_smoothing_enable_flag = get_bits1(gb);
		829	sps->vui.sar = (AVRational){0, 1};
		830	vui_present = get_bits1(gb);
		831	if (vui_present)
		832	decode_vui(s, sps);
		833	skip_bits1(gb); // sps_extension_flag
		834
		835	if (s->strict_def_disp_win) {
		836	sps->output_window.left_offset += sps->vui.def_disp_win.left_offset;
		837	sps->output_window.right_offset += sps->vui.def_disp_win.right_offset;
		838	sps->output_window.top_offset += sps->vui.def_disp_win.top_offset;
		839	sps->output_window.bottom_offset += sps->vui.def_disp_win.bottom_offset;
		840	}
		841	if (sps->output_window.left_offset & (0x1F >> (sps->pixel_shift)) &&
		842	!(s->avctx->flags & CODEC_FLAG_UNALIGNED)) {
		843	sps->output_window.left_offset &= ~(0x1F >> (sps->pixel_shift));
		844	av_log(s->avctx, AV_LOG_WARNING, "Reducing left output window to %d "
		845	"chroma samples to preserve alignment.\n",
		846	sps->output_window.left_offset);
		847	}
		848	sps->output_width = sps->width -
		849	(sps->output_window.left_offset + sps->output_window.right_offset);
		850	sps->output_height = sps->height -
		851	(sps->output_window.top_offset + sps->output_window.bottom_offset);
		852	if (sps->output_width <= 0 \|\| sps->output_height <= 0) {
		853	av_log(s->avctx, AV_LOG_WARNING, "Invalid visible frame dimensions: %dx%d.\n",
		854	sps->output_width, sps->output_height);
		855	if (s->avctx->err_recognition & AV_EF_EXPLODE) {
		856	ret = AVERROR_INVALIDDATA;
		857	goto err;
		858	}
		859	av_log(s->avctx, AV_LOG_WARNING, "Displaying the whole video surface.\n");
		860	sps->pic_conf_win.left_offset =
		861	sps->pic_conf_win.right_offset =
		862	sps->pic_conf_win.top_offset =
		863	sps->pic_conf_win.bottom_offset = 0;
		864	sps->output_width = sps->width;
		865	sps->output_height = sps->height;
		866	}
		867
		868	// Inferred parameters
		869	sps->log2_ctb_size = sps->log2_min_cb_size
		870	+ sps->log2_diff_max_min_coding_block_size;
		871	sps->log2_min_pu_size = sps->log2_min_cb_size - 1;
		872
		873	sps->ctb_width = (sps->width + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
		874	sps->ctb_height = (sps->height + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
		875	sps->ctb_size = sps->ctb_width * sps->ctb_height;
		876
		877	sps->min_cb_width = sps->width >> sps->log2_min_cb_size;
		878	sps->min_cb_height = sps->height >> sps->log2_min_cb_size;
		879	sps->min_tb_width = sps->width >> sps->log2_min_tb_size;
		880	sps->min_tb_height = sps->height >> sps->log2_min_tb_size;
		881	sps->min_pu_width = sps->width >> sps->log2_min_pu_size;
		882	sps->min_pu_height = sps->height >> sps->log2_min_pu_size;
		883
		884	sps->qp_bd_offset = 6 * (sps->bit_depth - 8);
		885
		886	if (sps->width & ((1 << sps->log2_min_cb_size) - 1) \|\|
		887	sps->height & ((1 << sps->log2_min_cb_size) - 1)) {
		888	av_log(s->avctx, AV_LOG_ERROR, "Invalid coded frame dimensions.\n");
		889	goto err;
		890	}
		891
		892	if (sps->log2_ctb_size > MAX_LOG2_CTB_SIZE) {
		893	av_log(s->avctx, AV_LOG_ERROR, "CTB size out of range: 2^%d\n", sps->log2_ctb_size);
		894	goto err;
		895	}
		896	if (sps->max_transform_hierarchy_depth_inter > sps->log2_ctb_size - sps->log2_min_tb_size) {
		897	av_log(s->avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_inter out of range: %d\n",
		898	sps->max_transform_hierarchy_depth_inter);
		899	goto err;
		900	}
		901	if (sps->max_transform_hierarchy_depth_intra > sps->log2_ctb_size - sps->log2_min_tb_size) {
		902	av_log(s->avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_intra out of range: %d\n",
		903	sps->max_transform_hierarchy_depth_intra);
		904	goto err;
		905	}
		906	if (sps->log2_max_trafo_size > FFMIN(sps->log2_ctb_size, 5)) {
		907	av_log(s->avctx, AV_LOG_ERROR, "max transform block size out of range: %d\n",
		908	sps->log2_max_trafo_size);
		909	goto err;
		910	}
		911
		912	if (s->avctx->debug & FF_DEBUG_BITSTREAM) {
		913	av_log(s->avctx, AV_LOG_DEBUG, "Parsed SPS: id %d; coded wxh: %dx%d; "
		914	"cropped wxh: %dx%d; pix_fmt: %s.\n",
		915	sps_id, sps->width, sps->height,
		916	sps->output_width, sps->output_height,
		917	av_get_pix_fmt_name(sps->pix_fmt));
		918	}
		919
		920	/* check if this is a repeat of an already parsed SPS, then keep the
		921	* original one.
		922	* otherwise drop all PPSes that depend on it */
		923	if (s->sps_list[sps_id] &&
		924	!memcmp(s->sps_list[sps_id]->data, sps_buf->data, sps_buf->size)) {
		925	av_buffer_unref(&sps_buf);
		926	} else {
		927	for (i = 0; i < FF_ARRAY_ELEMS(s->pps_list); i++) {
		928	if (s->pps_list[i] && ((HEVCPPS*)s->pps_list[i]->data)->sps_id == sps_id)
		929	av_buffer_unref(&s->pps_list[i]);
		930	}
		931	av_buffer_unref(&s->sps_list[sps_id]);
		932	s->sps_list[sps_id] = sps_buf;
		933	}
		934
		935	return 0;
		936	err:
		937
		938	av_buffer_unref(&sps_buf);
		939	return ret;
		940	}
		941
		942	static void hevc_pps_free(void opaque, uint8_t data)
		943	{
		944	HEVCPPS pps = (HEVCPPS)data;
		945
		946	av_freep(&pps->column_width);
		947	av_freep(&pps->row_height);
		948	av_freep(&pps->col_bd);
		949	av_freep(&pps->row_bd);
		950	av_freep(&pps->col_idxX);
		951	av_freep(&pps->ctb_addr_rs_to_ts);
		952	av_freep(&pps->ctb_addr_ts_to_rs);
		953	av_freep(&pps->tile_pos_rs);
		954	av_freep(&pps->tile_id);
		955	av_freep(&pps->min_cb_addr_zs);
		956	av_freep(&pps->min_tb_addr_zs);
		957
		958	av_freep(&pps);
		959	}
		960
		961	int ff_hevc_decode_nal_pps(HEVCContext *s)
		962	{
		963	GetBitContext *gb = &s->HEVClc->gb;
		964	HEVCSPS *sps = NULL;
		965	int pic_area_in_ctbs, pic_area_in_min_cbs, pic_area_in_min_tbs;
		966	int log2_diff_ctb_min_tb_size;
		967	int i, j, x, y, ctb_addr_rs, tile_id;
		968	int ret = 0;
		969	int pps_id = 0;
		970
		971	AVBufferRef *pps_buf;
		972	HEVCPPS pps = av_mallocz(sizeof(pps));
		973
		974	if (!pps)
		975	return AVERROR(ENOMEM);
		976
		977	pps_buf = av_buffer_create((uint8_t)pps, sizeof(pps), hevc_pps_free, NULL, 0);
		978	if (!pps_buf) {
		979	av_freep(&pps);
		980	return AVERROR(ENOMEM);
		981	}
		982
		983	av_log(s->avctx, AV_LOG_DEBUG, "Decoding PPS\n");
		984
		985	// Default values
		986	pps->loop_filter_across_tiles_enabled_flag = 1;
		987	pps->num_tile_columns = 1;
		988	pps->num_tile_rows = 1;
		989	pps->uniform_spacing_flag = 1;
		990	pps->disable_dbf = 0;
		991	pps->beta_offset = 0;
		992	pps->tc_offset = 0;
		993
		994	// Coded parameters
		995	pps_id = get_ue_golomb_long(gb);
		996	if (pps_id >= MAX_PPS_COUNT) {
		997	av_log(s->avctx, AV_LOG_ERROR, "PPS id out of range: %d\n", pps_id);
		998	ret = AVERROR_INVALIDDATA;
		999	goto err;
		1000	}
		1001	pps->sps_id = get_ue_golomb_long(gb);
		1002	if (pps->sps_id >= MAX_SPS_COUNT) {
		1003	av_log(s->avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", pps->sps_id);
		1004	ret = AVERROR_INVALIDDATA;
		1005	goto err;
		1006	}
		1007	if (!s->sps_list[pps->sps_id]) {
		1008	av_log(s->avctx, AV_LOG_ERROR, "SPS does not exist \n");
		1009	ret = AVERROR_INVALIDDATA;
		1010	goto err;
		1011	}
		1012	sps = (HEVCSPS*)s->sps_list[pps->sps_id]->data;
		1013
		1014	pps->dependent_slice_segments_enabled_flag = get_bits1(gb);
		1015	pps->output_flag_present_flag = get_bits1(gb);
		1016	pps->num_extra_slice_header_bits = get_bits(gb, 3);
		1017
		1018	pps->sign_data_hiding_flag = get_bits1(gb);
		1019
		1020	pps->cabac_init_present_flag = get_bits1(gb);
		1021
		1022	pps->num_ref_idx_l0_default_active = get_ue_golomb_long(gb) + 1;
		1023	pps->num_ref_idx_l1_default_active = get_ue_golomb_long(gb) + 1;
		1024
		1025	pps->pic_init_qp_minus26 = get_se_golomb(gb);
		1026
		1027	pps->constrained_intra_pred_flag = get_bits1(gb);
		1028	pps->transform_skip_enabled_flag = get_bits1(gb);
		1029
		1030	pps->cu_qp_delta_enabled_flag = get_bits1(gb);
		1031	pps->diff_cu_qp_delta_depth = 0;
		1032	if (pps->cu_qp_delta_enabled_flag)
		1033	pps->diff_cu_qp_delta_depth = get_ue_golomb_long(gb);
		1034
		1035	pps->cb_qp_offset = get_se_golomb(gb);
		1036	if (pps->cb_qp_offset < -12 \|\| pps->cb_qp_offset > 12) {
		1037	av_log(s->avctx, AV_LOG_ERROR, "pps_cb_qp_offset out of range: %d\n",
		1038	pps->cb_qp_offset);
		1039	ret = AVERROR_INVALIDDATA;
		1040	goto err;
		1041	}
		1042	pps->cr_qp_offset = get_se_golomb(gb);
		1043	if (pps->cr_qp_offset < -12 \|\| pps->cr_qp_offset > 12) {
		1044	av_log(s->avctx, AV_LOG_ERROR, "pps_cr_qp_offset out of range: %d\n",
		1045	pps->cr_qp_offset);
		1046	ret = AVERROR_INVALIDDATA;
		1047	goto err;
		1048	}
		1049	pps->pic_slice_level_chroma_qp_offsets_present_flag = get_bits1(gb);
		1050
		1051	pps->weighted_pred_flag = get_bits1(gb);
		1052	pps->weighted_bipred_flag = get_bits1(gb);
		1053
		1054	pps->transquant_bypass_enable_flag = get_bits1(gb);
		1055	pps->tiles_enabled_flag = get_bits1(gb);
		1056	pps->entropy_coding_sync_enabled_flag = get_bits1(gb);
		1057
		1058	if (pps->tiles_enabled_flag) {
		1059	pps->num_tile_columns = get_ue_golomb_long(gb) + 1;
		1060	pps->num_tile_rows = get_ue_golomb_long(gb) + 1;
		1061	if (pps->num_tile_columns == 0 \|\|
		1062	pps->num_tile_columns >= sps->width) {
		1063	av_log(s->avctx, AV_LOG_ERROR, "num_tile_columns_minus1 out of range: %d\n",
		1064	pps->num_tile_columns - 1);
		1065	ret = AVERROR_INVALIDDATA;
		1066	goto err;
		1067	}
		1068	if (pps->num_tile_rows == 0 \|\|
		1069	pps->num_tile_rows >= sps->height) {
		1070	av_log(s->avctx, AV_LOG_ERROR, "num_tile_rows_minus1 out of range: %d\n",
		1071	pps->num_tile_rows - 1);
		1072	ret = AVERROR_INVALIDDATA;
		1073	goto err;
		1074	}
		1075
		1076	pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width));
		1077	pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height));
		1078	if (!pps->column_width \|\| !pps->row_height) {
		1079	ret = AVERROR(ENOMEM);
		1080	goto err;
		1081	}
		1082
		1083	pps->uniform_spacing_flag = get_bits1(gb);
		1084	if (!pps->uniform_spacing_flag) {
		1085	int sum = 0;
		1086	for (i = 0; i < pps->num_tile_columns - 1; i++) {
		1087	pps->column_width[i] = get_ue_golomb_long(gb) + 1;
		1088	sum += pps->column_width[i];
		1089	}
		1090	if (sum >= sps->ctb_width) {
		1091	av_log(s->avctx, AV_LOG_ERROR, "Invalid tile widths.\n");
		1092	ret = AVERROR_INVALIDDATA;
		1093	goto err;
		1094	}
		1095	pps->column_width[pps->num_tile_columns - 1] = sps->ctb_width - sum;
		1096
		1097	sum = 0;
		1098	for (i = 0; i < pps->num_tile_rows - 1; i++) {
		1099	pps->row_height[i] = get_ue_golomb_long(gb) + 1;
		1100	sum += pps->row_height[i];
		1101	}
		1102	if (sum >= sps->ctb_height) {
		1103	av_log(s->avctx, AV_LOG_ERROR, "Invalid tile heights.\n");
		1104	ret = AVERROR_INVALIDDATA;
		1105	goto err;
		1106	}
		1107	pps->row_height[pps->num_tile_rows - 1] = sps->ctb_height - sum;
		1108	}
		1109	pps->loop_filter_across_tiles_enabled_flag = get_bits1(gb);
		1110	}
		1111
		1112	pps->seq_loop_filter_across_slices_enabled_flag = get_bits1(gb);
		1113
		1114	pps->deblocking_filter_control_present_flag = get_bits1(gb);
		1115	if (pps->deblocking_filter_control_present_flag) {
		1116	pps->deblocking_filter_override_enabled_flag = get_bits1(gb);
		1117	pps->disable_dbf = get_bits1(gb);
		1118	if (!pps->disable_dbf) {
		1119	pps->beta_offset = get_se_golomb(gb) * 2;
		1120	pps->tc_offset = get_se_golomb(gb) * 2;
		1121	if (pps->beta_offset/2 < -6 \|\| pps->beta_offset/2 > 6) {
		1122	av_log(s->avctx, AV_LOG_ERROR, "pps_beta_offset_div2 out of range: %d\n",
		1123	pps->beta_offset/2);
		1124	ret = AVERROR_INVALIDDATA;
		1125	goto err;
		1126	}
		1127	if (pps->tc_offset/2 < -6 \|\| pps->tc_offset/2 > 6) {
		1128	av_log(s->avctx, AV_LOG_ERROR, "pps_tc_offset_div2 out of range: %d\n",
		1129	pps->tc_offset/2);
		1130	ret = AVERROR_INVALIDDATA;
		1131	goto err;
		1132	}
		1133	}
		1134	}
		1135
		1136	pps->pps_scaling_list_data_present_flag = get_bits1(gb);
		1137	if (pps->pps_scaling_list_data_present_flag) {
		1138	set_default_scaling_list_data(&pps->scaling_list);
		1139	ret = scaling_list_data(s, &pps->scaling_list);
		1140	if (ret < 0)
		1141	goto err;
		1142	}
		1143	pps->lists_modification_present_flag = get_bits1(gb);
		1144	pps->log2_parallel_merge_level = get_ue_golomb_long(gb) + 2;
		1145	if (pps->log2_parallel_merge_level > sps->log2_ctb_size) {
		1146	av_log(s->avctx, AV_LOG_ERROR, "log2_parallel_merge_level_minus2 out of range: %d\n",
		1147	pps->log2_parallel_merge_level - 2);
		1148	ret = AVERROR_INVALIDDATA;
		1149	goto err;
		1150	}
		1151
		1152	pps->slice_header_extension_present_flag = get_bits1(gb);
		1153	pps->pps_extension_flag = get_bits1(gb);
		1154
		1155	// Inferred parameters
		1156	pps->col_bd = av_malloc_array(pps->num_tile_columns + 1, sizeof(*pps->col_bd));
		1157	pps->row_bd = av_malloc_array(pps->num_tile_rows + 1, sizeof(*pps->row_bd));
		1158	pps->col_idxX = av_malloc_array(sps->ctb_width, sizeof(*pps->col_idxX));
		1159	if (!pps->col_bd \|\| !pps->row_bd \|\| !pps->col_idxX) {
		1160	ret = AVERROR(ENOMEM);
		1161	goto err;
		1162	}
		1163
		1164	if (pps->uniform_spacing_flag) {
		1165	if (!pps->column_width) {
		1166	pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width));
		1167	pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height));
		1168	}
		1169	if (!pps->column_width \|\| !pps->row_height) {
		1170	ret = AVERROR(ENOMEM);
		1171	goto err;
		1172	}
		1173
		1174	for (i = 0; i < pps->num_tile_columns; i++) {
		1175	pps->column_width[i] = ((i + 1) * sps->ctb_width) / pps->num_tile_columns -
		1176	(i * sps->ctb_width) / pps->num_tile_columns;
		1177	}
		1178
		1179	for (i = 0; i < pps->num_tile_rows; i++) {
		1180	pps->row_height[i] = ((i + 1) * sps->ctb_height) / pps->num_tile_rows -
		1181	(i * sps->ctb_height) / pps->num_tile_rows;
		1182	}
		1183	}
		1184
		1185	pps->col_bd[0] = 0;
		1186	for (i = 0; i < pps->num_tile_columns; i++)
		1187	pps->col_bd[i + 1] = pps->col_bd[i] + pps->column_width[i];
		1188
		1189	pps->row_bd[0] = 0;
		1190	for (i = 0; i < pps->num_tile_rows; i++)
		1191	pps->row_bd[i + 1] = pps->row_bd[i] + pps->row_height[i];
		1192
		1193	for (i = 0, j = 0; i < sps->ctb_width; i++) {
		1194	if (i > pps->col_bd[j])
		1195	j++;
		1196	pps->col_idxX[i] = j;
		1197	}
		1198
		1199	/**
		1200	* 6.5
		1201	*/
		1202	pic_area_in_ctbs = sps->ctb_width * sps->ctb_height;
		1203	pic_area_in_min_cbs = sps->min_cb_width * sps->min_cb_height;
		1204	pic_area_in_min_tbs = sps->min_tb_width * sps->min_tb_height;
		1205
		1206	pps->ctb_addr_rs_to_ts = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_rs_to_ts));
		1207	pps->ctb_addr_ts_to_rs = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_ts_to_rs));
		1208	pps->tile_id = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->tile_id));
		1209	pps->min_cb_addr_zs = av_malloc_array(pic_area_in_min_cbs, sizeof(*pps->min_cb_addr_zs));
		1210	pps->min_tb_addr_zs = av_malloc_array(pic_area_in_min_tbs, sizeof(*pps->min_tb_addr_zs));
		1211	if (!pps->ctb_addr_rs_to_ts \|\| !pps->ctb_addr_ts_to_rs \|\|
		1212	!pps->tile_id \|\| !pps->min_cb_addr_zs \|\| !pps->min_tb_addr_zs) {
		1213	ret = AVERROR(ENOMEM);
		1214	goto err;
		1215	}
		1216
		1217	for (ctb_addr_rs = 0; ctb_addr_rs < pic_area_in_ctbs; ctb_addr_rs++) {
		1218	int tb_x = ctb_addr_rs % sps->ctb_width;
		1219	int tb_y = ctb_addr_rs / sps->ctb_width;
		1220	int tile_x = 0;
		1221	int tile_y = 0;
		1222	int val = 0;
		1223
		1224	for (i = 0; i < pps->num_tile_columns; i++) {
		1225	if (tb_x < pps->col_bd[i + 1]) {
		1226	tile_x = i;
		1227	break;
		1228	}
		1229	}
		1230
		1231	for (i = 0; i < pps->num_tile_rows; i++) {
		1232	if (tb_y < pps->row_bd[i + 1]) {
		1233	tile_y = i;
		1234	break;
		1235	}
		1236	}
		1237
		1238	for (i = 0; i < tile_x; i++ )
		1239	val += pps->row_height[tile_y] * pps->column_width[i];
		1240	for (i = 0; i < tile_y; i++ )
		1241	val += sps->ctb_width * pps->row_height[i];
		1242
		1243	val += (tb_y - pps->row_bd[tile_y]) * pps->column_width[tile_x] +
		1244	tb_x - pps->col_bd[tile_x];
		1245
		1246	pps->ctb_addr_rs_to_ts[ctb_addr_rs] = val;
		1247	pps->ctb_addr_ts_to_rs[val] = ctb_addr_rs;
		1248	}
		1249
		1250	for (j = 0, tile_id = 0; j < pps->num_tile_rows; j++)
		1251	for (i = 0; i < pps->num_tile_columns; i++, tile_id++)
		1252	for (y = pps->row_bd[j]; y < pps->row_bd[j + 1]; y++)
		1253	for (x = pps->col_bd[i]; x < pps->col_bd[i + 1]; x++)
		1254	pps->tile_id[pps->ctb_addr_rs_to_ts[y * sps->ctb_width + x]] = tile_id;
		1255
		1256	pps->tile_pos_rs = av_malloc_array(tile_id, sizeof(*pps->tile_pos_rs));
		1257	if (!pps->tile_pos_rs) {
		1258	ret = AVERROR(ENOMEM);
		1259	goto err;
		1260	}
		1261
		1262	for (j = 0; j < pps->num_tile_rows; j++)
		1263	for (i = 0; i < pps->num_tile_columns; i++)
		1264	pps->tile_pos_rs[j * pps->num_tile_columns + i] = pps->row_bd[j] * sps->ctb_width + pps->col_bd[i];
		1265
		1266	for (y = 0; y < sps->min_cb_height; y++) {
		1267	for (x = 0; x < sps->min_cb_width; x++) {
		1268	int tb_x = x >> sps->log2_diff_max_min_coding_block_size;
		1269	int tb_y = y >> sps->log2_diff_max_min_coding_block_size;
		1270	int ctb_addr_rs = sps->ctb_width * tb_y + tb_x;
		1271	int val = pps->ctb_addr_rs_to_ts[ctb_addr_rs] <<
		1272	(sps->log2_diff_max_min_coding_block_size * 2);
		1273	for (i = 0; i < sps->log2_diff_max_min_coding_block_size; i++) {
		1274	int m = 1 << i;
		1275	val += (m & x ? m * m : 0) + (m & y ? 2 * m * m : 0);
		1276	}
		1277	pps->min_cb_addr_zs[y * sps->min_cb_width + x] = val;
		1278	}
		1279	}
		1280
		1281	log2_diff_ctb_min_tb_size = sps->log2_ctb_size - sps->log2_min_tb_size;
		1282	for (y = 0; y < sps->min_tb_height; y++) {
		1283	for (x = 0; x < sps->min_tb_width; x++) {
		1284	int tb_x = x >> log2_diff_ctb_min_tb_size;
		1285	int tb_y = y >> log2_diff_ctb_min_tb_size;
		1286	int ctb_addr_rs = sps->ctb_width * tb_y + tb_x;
		1287	int val = pps->ctb_addr_rs_to_ts[ctb_addr_rs] <<
		1288	(log2_diff_ctb_min_tb_size * 2);
		1289	for (i = 0; i < log2_diff_ctb_min_tb_size; i++) {
		1290	int m = 1 << i;
		1291	val += (m & x ? m * m : 0) + (m & y ? 2 * m * m : 0);
		1292	}
		1293	pps->min_tb_addr_zs[y * sps->min_tb_width + x] = val;
		1294	}
		1295	}
		1296
		1297	av_buffer_unref(&s->pps_list[pps_id]);
		1298	s->pps_list[pps_id] = pps_buf;
		1299
		1300	return 0;
		1301
		1302	err:
		1303	av_buffer_unref(&pps_buf);
		1304	return ret;
		1305	}

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(root)/contrib/sdk/sources/ffmpeg/libavcodec/hevc_ps.c @ 4525 – Rev