/src/libde265/libde265/vui.cc

Source
/*
 * H.265 video codec.
 * Copyright (c) 2013-2014 struktur AG, Dirk Farin <farin@struktur.de>
 *
 * This file is part of libde265.
 *
 * libde265 is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of
 * the License, or (at your option) any later version.
 *
 * libde265 is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with libde265.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "vui.h"
#include "decctx.h"

#include <assert.h>
#include <stdlib.h>
#include <string.h>

#define READ_VLC(variable, vlctype)   \
  if ((vlc = br->get_ ## vlctype()) == UVLC_ERROR) {   \
    errqueue->add_warning(DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE, false);  \
    return DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE; \
  } \
  (variable) = vlc;


#define NUM_SAR_PRESETS 17

static uint16_t sar_presets[NUM_SAR_PRESETS+1][2] = {
  { 0,0 },
  { 1,1 },
  { 12,11 },
  { 10,11 },
  { 16,11 },
  { 40,33 },
  { 24,11 },
  { 20,11 },
  { 32,11 },
  { 80,33 },
  { 18,11 },
  { 15,11 },
  { 64,33 },
  { 160,99 },
  { 4,3 },
  { 3,2 },
  { 2,1 }
};

#define EXTENDED_SAR 255


const char* get_video_format_name(enum VideoFormat format)
{
  switch (format) {
  case VideoFormat_Component: return "component";
  case VideoFormat_PAL:       return "PAL";
  case VideoFormat_NTSC:      return "NTSC";
  case VideoFormat_SECAM:     return "SECAM";
  case VideoFormat_MAC:       return "MAC";
  default:                    return "unspecified";
  }
}


video_usability_information::video_usability_information() = default;


de265_error video_usability_information::hrd_parameters(error_queue* errqueue, bitreader* br, const seq_parameter_set* sps)
{
  uint32_t vlc;

  nal_hrd_parameters_present_flag = br->get_bits(1);
  vcl_hrd_parameters_present_flag = br->get_bits(1);

  if (nal_hrd_parameters_present_flag || vcl_hrd_parameters_present_flag)
  {
    sub_pic_hrd_params_present_flag = br->get_bits(1);
    if (sub_pic_hrd_params_present_flag)
    {
      tick_divisor_minus2 = br->get_bits(8);
      du_cpb_removal_delay_increment_length_minus1 = br->get_bits(5);
      sub_pic_cpb_params_in_pic_timing_sei_flag = br->get_bits(1);
      dpb_output_delay_du_length_minus1 = br->get_bits(5);
    }
    bit_rate_scale = br->get_bits(4);
    cpb_size_scale = br->get_bits(4);


    if (sub_pic_hrd_params_present_flag)
    {
      cpb_size_du_scale = br->get_bits(4);
    }
    initial_cpb_removal_delay_length_minus1 = br->get_bits(5);
    au_cpb_removal_delay_length_minus1 = br->get_bits(5);
    dpb_output_delay_length_minus1 = br->get_bits(5);
  }
  int  i, nalOrVcl;

  for (i = 0; i < sps->sps_max_sub_layers; i++)
  {
    fixed_pic_rate_general_flag[i] = br->get_bits(1);
    if (!fixed_pic_rate_general_flag[i])
    {
      fixed_pic_rate_within_cvs_flag[i] = br->get_bits(1);
    }
    else
    {
      fixed_pic_rate_within_cvs_flag[i] = true;
    }

    low_delay_hrd_flag[i] = 0;// Inferred to be 0 when not present
    cpb_cnt_minus1[i] = 0;    // Inferred to be 0 when not present

    if (fixed_pic_rate_within_cvs_flag[i])
    {
      READ_VLC(elemental_duration_in_tc_minus1[i], uvlc);
    }
    else
    {
      low_delay_hrd_flag[i] = br->get_bits(1);
    }
    if (!low_delay_hrd_flag[i])
    {
      READ_VLC(cpb_cnt_minus1[i], uvlc);
      if (cpb_cnt_minus1[i] > 31) {
  return DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE;
      }
    }

    for (nalOrVcl = 0; nalOrVcl < 2; nalOrVcl++)
    {
      if (((nalOrVcl == 0) && nal_hrd_parameters_present_flag) ||
        ((nalOrVcl == 1) && vcl_hrd_parameters_present_flag))
      {
        for (uint32_t j = 0; j <= cpb_cnt_minus1[i]; j++)
        {
          READ_VLC(bit_rate_value_minus1[i][j][nalOrVcl], uvlc);
          READ_VLC(cpb_size_value_minus1[i][j][nalOrVcl], uvlc);

          if (sub_pic_hrd_params_present_flag)
          {
            READ_VLC(cpb_size_du_value_minus1[i][j][nalOrVcl], uvlc);
            READ_VLC(bit_rate_du_value_minus1[i][j][nalOrVcl], uvlc);
          }
          cbr_flag[i][j][nalOrVcl] = br->get_bits(1);
        }
      }
    }
  }
  return DE265_OK;
}

de265_error video_usability_information::read(error_queue* errqueue, bitreader* br,
                                              const seq_parameter_set* sps)
{
  uint32_t vlc;


  // --- sample aspect ratio (SAR) ---

  aspect_ratio_info_present_flag = br->get_bits(1);
  if (aspect_ratio_info_present_flag) {
    int aspect_ratio_idc = br->get_bits(8);
    if (aspect_ratio_idc <= NUM_SAR_PRESETS) {
      sar_width = sar_presets[aspect_ratio_idc][0];
      sar_height = sar_presets[aspect_ratio_idc][1];
    }
    else if (aspect_ratio_idc == EXTENDED_SAR) {
      sar_width = br->get_bits(16);
      sar_height = br->get_bits(16);
    }
    else {
      sar_width = 0;
      sar_height = 0;
    }
  }
  else {
    sar_width = 0;
    sar_height = 0;
  }


  // --- overscan ---

  overscan_info_present_flag = br->get_bits(1);
  if (overscan_info_present_flag) {
    overscan_appropriate_flag = br->get_bits(1);
  }


  // --- video signal type ---

  { // defaults
    video_format = VideoFormat_Unspecified;
    video_full_range_flag = false;
    colour_primaries = 2;
    transfer_characteristics = 2;
    matrix_coeffs = 2;
  }

  video_signal_type_present_flag = br->get_bits(1);
  if (video_signal_type_present_flag) {
    int video_format_idc = br->get_bits(3);
    if (video_format_idc > 5) {
      video_format_idc = VideoFormat_Unspecified;
    }
    video_format = (VideoFormat)video_format_idc;

    video_full_range_flag = br->get_bits(1);

    colour_description_present_flag = br->get_bits(1);
    if (colour_description_present_flag) {
      colour_primaries = br->get_bits(8);
      if (colour_primaries == 0 ||
        colour_primaries == 3 ||
        colour_primaries >= 11) {
        colour_primaries = 2;
      }

      transfer_characteristics = br->get_bits(8);
      if (transfer_characteristics == 0 ||
        transfer_characteristics == 3 ||
        transfer_characteristics >= 18) {
        transfer_characteristics = 2;
      }

      matrix_coeffs = br->get_bits(8);
      
      if (matrix_coeffs >= 11) {
        matrix_coeffs = 2;
      }
    }
  }


  // --- chroma / interlaced ---

  chroma_loc_info_present_flag = br->get_bits(1);
  if (chroma_loc_info_present_flag) {
    if ((vlc = br->get_uvlc()) == UVLC_ERROR || vlc > 5) {
      errqueue->add_warning(DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE, false);
      return DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE;
    }
    chroma_sample_loc_type_top_field = vlc;

    if ((vlc = br->get_uvlc()) == UVLC_ERROR || vlc > 5) {
      errqueue->add_warning(DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE, false);
      return DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE;
    }
    chroma_sample_loc_type_bottom_field = vlc;
  }
  else {
    chroma_sample_loc_type_top_field = 0;
    chroma_sample_loc_type_bottom_field = 0;
  }

  neutral_chroma_indication_flag = br->get_bits(1);
  field_seq_flag = br->get_bits(1);
  frame_field_info_present_flag = br->get_bits(1);


  // --- default display window ---

  default_display_window_flag = br->get_bits(1);
  if (default_display_window_flag) {
    READ_VLC(def_disp_win_left_offset, uvlc);
    READ_VLC(def_disp_win_right_offset, uvlc);
    READ_VLC(def_disp_win_top_offset, uvlc);
    READ_VLC(def_disp_win_bottom_offset, uvlc);
  }
  else {
    def_disp_win_left_offset = 0;
    def_disp_win_right_offset = 0;
    def_disp_win_top_offset = 0;
    def_disp_win_bottom_offset = 0;
  }


  // --- timing ---

  vui_timing_info_present_flag = br->get_bits(1);
  if (vui_timing_info_present_flag) {
    vui_num_units_in_tick = br->get_bits(32);
    vui_time_scale = br->get_bits(32);

    vui_poc_proportional_to_timing_flag = br->get_bits(1);
    if (vui_poc_proportional_to_timing_flag) {
      if ((vlc = br->get_uvlc()) == UVLC_ERROR) {
        errqueue->add_warning(DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE, false);
        return DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE;
      }

      vui_num_ticks_poc_diff_one = vlc + 1;
    }

    // --- hrd parameters ---

    vui_hrd_parameters_present_flag = br->get_bits(1);
    if (vui_hrd_parameters_present_flag) {
      de265_error err;
      err = hrd_parameters(errqueue, br, sps);
      if (err) {
  return err;
      }
    }
  }

  // --- bitstream restriction ---

  bitstream_restriction_flag = br->get_bits(1);
  if (bitstream_restriction_flag) {
    tiles_fixed_structure_flag = br->get_bits(1);
    motion_vectors_over_pic_boundaries_flag = br->get_bits(1);
    restricted_ref_pic_lists_flag = br->get_bits(1);

    if ((vlc = br->get_uvlc()) == UVLC_ERROR || vlc > 4095) {
      errqueue->add_warning(DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE, false);
      return DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE;
    }
    min_spatial_segmentation_idc = vlc;

    if ((vlc = br->get_uvlc()) == UVLC_ERROR || vlc > 16) {
      errqueue->add_warning(DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE, false);
      return DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE;
    }
    max_bytes_per_pic_denom = vlc;

    if ((vlc = br->get_uvlc()) == UVLC_ERROR || vlc > 16) {
      errqueue->add_warning(DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE, false);
      return DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE;
    }
    max_bits_per_min_cu_denom = vlc;

    if ((vlc = br->get_uvlc()) == UVLC_ERROR || vlc > 15) {
      errqueue->add_warning(DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE, false);
      return DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE;
    }
    log2_max_mv_length_horizontal = vlc;

    if ((vlc = br->get_uvlc()) == UVLC_ERROR || vlc > 15) {
      errqueue->add_warning(DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE, false);
      return DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE;
    }
    log2_max_mv_length_vertical = vlc;
  }
  else {
    tiles_fixed_structure_flag = false;
    motion_vectors_over_pic_boundaries_flag = true;
    restricted_ref_pic_lists_flag = false; // NOTE: default not specified in standard 2014/10

    min_spatial_segmentation_idc = 0;
    max_bytes_per_pic_denom   = 2;
    max_bits_per_min_cu_denom = 1;
    log2_max_mv_length_horizontal = 15;
    log2_max_mv_length_vertical   = 15;
  }

  //vui_read = true;

  return DE265_OK;
}


void video_usability_information::dump(int fd) const
{
  //#if (_MSC_VER >= 1500)
  //#define LOG0(t) loginfo(LogHeaders, t)
  //#define LOG1(t,d) loginfo(LogHeaders, t,d)
  //#define LOG2(t,d1,d2) loginfo(LogHeaders, t,d1,d2)
  //#define LOG3(t,d1,d2,d3) loginfo(LogHeaders, t,d1,d2,d3)

  FILE* fh;
  if (fd==1) fh=stdout;
  else if (fd==2) fh=stderr;
  else { return; }

#define LOG0(t) log2fh(fh, t)
#define LOG1(t,d) log2fh(fh, t,d)
#define LOG2(t,d1,d2) log2fh(fh, t,d1,d2)
#define LOG3(t,d1,d2,d3) log2fh(fh, t,d1,d2,d3)

  LOG0("----------------- VUI -----------------\n");
  LOG2("sample aspect ratio        : %d:%d\n", sar_width,sar_height);
  LOG1("overscan_info_present_flag : %d\n", overscan_info_present_flag);
  LOG1("overscan_appropriate_flag  : %d\n", overscan_appropriate_flag);

  LOG1("video_signal_type_present_flag: %d\n", video_signal_type_present_flag);
  if (video_signal_type_present_flag) {
    LOG1("  video_format                : %s\n", get_video_format_name(video_format));
    LOG1("  video_full_range_flag       : %d\n", video_full_range_flag);
    LOG1("  colour_description_present_flag : %d\n", colour_description_present_flag);
    LOG1("  colour_primaries            : %d\n", colour_primaries);
    LOG1("  transfer_characteristics    : %d\n", transfer_characteristics);
    LOG1("  matrix_coeffs               : %d\n", matrix_coeffs);
  }

  LOG1("chroma_loc_info_present_flag: %d\n", chroma_loc_info_present_flag);
  if (chroma_loc_info_present_flag) {
    LOG1("  chroma_sample_loc_type_top_field   : %d\n", chroma_sample_loc_type_top_field);
    LOG1("  chroma_sample_loc_type_bottom_field: %d\n", chroma_sample_loc_type_bottom_field);
  }

  LOG1("neutral_chroma_indication_flag: %d\n", neutral_chroma_indication_flag);
  LOG1("field_seq_flag                : %d\n", field_seq_flag);
  LOG1("frame_field_info_present_flag : %d\n", frame_field_info_present_flag);

  LOG1("default_display_window_flag   : %d\n", default_display_window_flag);
  LOG1("  def_disp_win_left_offset    : %d\n", def_disp_win_left_offset);
  LOG1("  def_disp_win_right_offset   : %d\n", def_disp_win_right_offset);
  LOG1("  def_disp_win_top_offset     : %d\n", def_disp_win_top_offset);
  LOG1("  def_disp_win_bottom_offset  : %d\n", def_disp_win_bottom_offset);

  LOG1("vui_timing_info_present_flag  : %d\n", vui_timing_info_present_flag);
  if (vui_timing_info_present_flag) {
    LOG1("  vui_num_units_in_tick       : %d\n", vui_num_units_in_tick);
    LOG1("  vui_time_scale              : %d\n", vui_time_scale);
  }

  LOG1("vui_poc_proportional_to_timing_flag : %d\n", vui_poc_proportional_to_timing_flag);
  LOG1("vui_num_ticks_poc_diff_one          : %d\n", vui_num_ticks_poc_diff_one);

  LOG1("vui_hrd_parameters_present_flag : %d\n", vui_hrd_parameters_present_flag);
  if (vui_hrd_parameters_present_flag) {
    //hrd_parameters vui_hrd_parameters;
  }


  // --- bitstream restriction ---

  LOG1("bitstream_restriction_flag         : %d\n", bitstream_restriction_flag);
  if (bitstream_restriction_flag) {
    LOG1("  tiles_fixed_structure_flag       : %d\n", tiles_fixed_structure_flag);
    LOG1("  motion_vectors_over_pic_boundaries_flag : %d\n", motion_vectors_over_pic_boundaries_flag);
    LOG1("  restricted_ref_pic_lists_flag    : %d\n", restricted_ref_pic_lists_flag);
    LOG1("  min_spatial_segmentation_idc     : %d\n", min_spatial_segmentation_idc);
    LOG1("  max_bytes_per_pic_denom          : %d\n", max_bytes_per_pic_denom);
    LOG1("  max_bits_per_min_cu_denom        : %d\n", max_bits_per_min_cu_denom);
    LOG1("  log2_max_mv_length_horizontal    : %d\n", log2_max_mv_length_horizontal);
    LOG1("  log2_max_mv_length_vertical      : %d\n", log2_max_mv_length_vertical);
  }

#undef LOG0
#undef LOG1
#undef LOG2
#undef LOG3
  //#endif
}

Coverage Report

Created: 2026-07-20 07:19

Line	Count	Source
1		/*
2		* H.265 video codec.
3		* Copyright (c) 2013-2014 struktur AG, Dirk Farin <farin@struktur.de>
4		*
5		* This file is part of libde265.
6		*
7		* libde265 is free software: you can redistribute it and/or modify
8		* it under the terms of the GNU Lesser General Public License as
9		* published by the Free Software Foundation, either version 3 of
10		* the License, or (at your option) any later version.
11		*
12		* libde265 is distributed in the hope that it will be useful,
13		* but WITHOUT ANY WARRANTY; without even the implied warranty of
14		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15		* GNU Lesser General Public License for more details.
16		*
17		* You should have received a copy of the GNU Lesser General Public License
18		* along with libde265. If not, see <http://www.gnu.org/licenses/>.
19		*/
20
21		#include "vui.h"
22		#include "decctx.h"
23
24		#include <assert.h>
25		#include <stdlib.h>
26		#include <string.h>
27
28		#define READ_VLC(variable, vlctype) \
29	19.3k	if ((vlc = br->get_ ## vlctype()) == UVLC_ERROR) { \
30	78	errqueue->add_warning(DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE, false); \
31	78	return DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE; \
32	78	} \
33	19.3k	(variable) = vlc;
34
35
36	3.57k	#define NUM_SAR_PRESETS 17
37
38		static uint16_t sar_presets[NUM_SAR_PRESETS+1][2] = {
39		{ 0,0 },
40		{ 1,1 },
41		{ 12,11 },
42		{ 10,11 },
43		{ 16,11 },
44		{ 40,33 },
45		{ 24,11 },
46		{ 20,11 },
47		{ 32,11 },
48		{ 80,33 },
49		{ 18,11 },
50		{ 15,11 },
51		{ 64,33 },
52		{ 160,99 },
53		{ 4,3 },
54		{ 3,2 },
55		{ 2,1 }
56		};
57
58	3.56k	#define EXTENDED_SAR 255
59
60
61		const char* get_video_format_name(enum VideoFormat format)
62	0	{
63	0	switch (format) {
64	0	case VideoFormat_Component: return "component";
65	0	case VideoFormat_PAL: return "PAL";
66	0	case VideoFormat_NTSC: return "NTSC";
67	0	case VideoFormat_SECAM: return "SECAM";
68	0	case VideoFormat_MAC: return "MAC";
69	0	default: return "unspecified";
70	0	}
71	0	}
72
73
74	7.11k	video_usability_information::video_usability_information() = default;
75
76
77		de265_error video_usability_information::hrd_parameters(error_queue* errqueue, bitreader* br, const seq_parameter_set* sps)
78	127	{
79	127	uint32_t vlc;
80
81	127	nal_hrd_parameters_present_flag = br->get_bits(1);
82	127	vcl_hrd_parameters_present_flag = br->get_bits(1);
83
84	127	if (nal_hrd_parameters_present_flag \|\| vcl_hrd_parameters_present_flag)
85	109	{
86	109	sub_pic_hrd_params_present_flag = br->get_bits(1);
87	109	if (sub_pic_hrd_params_present_flag)
88	81	{
89	81	tick_divisor_minus2 = br->get_bits(8);
90	81	du_cpb_removal_delay_increment_length_minus1 = br->get_bits(5);
91	81	sub_pic_cpb_params_in_pic_timing_sei_flag = br->get_bits(1);
92	81	dpb_output_delay_du_length_minus1 = br->get_bits(5);
93	81	}
94	109	bit_rate_scale = br->get_bits(4);
95	109	cpb_size_scale = br->get_bits(4);
96
97
98	109	if (sub_pic_hrd_params_present_flag)
99	81	{
100	81	cpb_size_du_scale = br->get_bits(4);
101	81	}
102	109	initial_cpb_removal_delay_length_minus1 = br->get_bits(5);
103	109	au_cpb_removal_delay_length_minus1 = br->get_bits(5);
104	109	dpb_output_delay_length_minus1 = br->get_bits(5);
105	109	}
106	127	int i, nalOrVcl;
107
108	209	for (i = 0; i < sps->sps_max_sub_layers; i++)
109	163	{
110	163	fixed_pic_rate_general_flag[i] = br->get_bits(1);
111	163	if (!fixed_pic_rate_general_flag[i])
112	137	{
113	137	fixed_pic_rate_within_cvs_flag[i] = br->get_bits(1);
114	137	}
115	26	else
116	26	{
117	26	fixed_pic_rate_within_cvs_flag[i] = true;
118	26	}
119
120	163	low_delay_hrd_flag[i] = 0;// Inferred to be 0 when not present
121	163	cpb_cnt_minus1[i] = 0; // Inferred to be 0 when not present
122
123	163	if (fixed_pic_rate_within_cvs_flag[i])
124	50	{
125	50	READ_VLC(elemental_duration_in_tc_minus1[i], uvlc);
126	46	}
127	113	else
128	113	{
129	113	low_delay_hrd_flag[i] = br->get_bits(1);
130	113	}
131	159	if (!low_delay_hrd_flag[i])
132	148	{
133	148	READ_VLC(cpb_cnt_minus1[i], uvlc);
134	138	if (cpb_cnt_minus1[i] > 31) {
135	15	return DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE;
136	15	}
137	138	}
138
139	323	for (nalOrVcl = 0; nalOrVcl < 2; nalOrVcl++)
140	241	{
141	241	if (((nalOrVcl == 0) && nal_hrd_parameters_present_flag) \|\|
142	157	((nalOrVcl == 1) && vcl_hrd_parameters_present_flag))
143	141	{
144	2.57k	for (uint32_t j = 0; j <= cpb_cnt_minus1[i]; j++)
145	2.48k	{
146	2.48k	READ_VLC(bit_rate_value_minus1[i][j][nalOrVcl], uvlc);
147	2.46k	READ_VLC(cpb_size_value_minus1[i][j][nalOrVcl], uvlc);
148
149	2.45k	if (sub_pic_hrd_params_present_flag)
150	2.25k	{
151	2.25k	READ_VLC(cpb_size_du_value_minus1[i][j][nalOrVcl], uvlc);
152	2.23k	READ_VLC(bit_rate_du_value_minus1[i][j][nalOrVcl], uvlc);
153	2.22k	}
154	2.42k	cbr_flag[i][j][nalOrVcl] = br->get_bits(1);
155	2.42k	}
156	141	}
157	241	}
158	134	}
159	46	return DE265_OK;
160	127	}
161
162		de265_error video_usability_information::read(error_queue* errqueue, bitreader* br,
163		const seq_parameter_set* sps)
164	4.11k	{
165	4.11k	uint32_t vlc;
166
167
168		// --- sample aspect ratio (SAR) ---
169
170	4.11k	aspect_ratio_info_present_flag = br->get_bits(1);
171	4.11k	if (aspect_ratio_info_present_flag) {
172	3.57k	int aspect_ratio_idc = br->get_bits(8);
173	3.57k	if (aspect_ratio_idc <= NUM_SAR_PRESETS) {
174	16	sar_width = sar_presets[aspect_ratio_idc][0];
175	16	sar_height = sar_presets[aspect_ratio_idc][1];
176	16	}
177	3.56k	else if (aspect_ratio_idc == EXTENDED_SAR) {
178	867	sar_width = br->get_bits(16);
179	867	sar_height = br->get_bits(16);
180	867	}
181	2.69k	else {
182	2.69k	sar_width = 0;
183	2.69k	sar_height = 0;
184	2.69k	}
185	3.57k	}
186	534	else {
187	534	sar_width = 0;
188	534	sar_height = 0;
189	534	}
190
191
192		// --- overscan ---
193
194	4.11k	overscan_info_present_flag = br->get_bits(1);
195	4.11k	if (overscan_info_present_flag) {
196	1.09k	overscan_appropriate_flag = br->get_bits(1);
197	1.09k	}
198
199
200		// --- video signal type ---
201
202	4.11k	{ // defaults
203	4.11k	video_format = VideoFormat_Unspecified;
204	4.11k	video_full_range_flag = false;
205	4.11k	colour_primaries = 2;
206	4.11k	transfer_characteristics = 2;
207	4.11k	matrix_coeffs = 2;
208	4.11k	}
209
210	4.11k	video_signal_type_present_flag = br->get_bits(1);
211	4.11k	if (video_signal_type_present_flag) {
212	3.23k	int video_format_idc = br->get_bits(3);
213	3.23k	if (video_format_idc > 5) {
214	1.67k	video_format_idc = VideoFormat_Unspecified;
215	1.67k	}
216	3.23k	video_format = (VideoFormat)video_format_idc;
217
218	3.23k	video_full_range_flag = br->get_bits(1);
219
220	3.23k	colour_description_present_flag = br->get_bits(1);
221	3.23k	if (colour_description_present_flag) {
222	2.94k	colour_primaries = br->get_bits(8);
223	2.94k	if (colour_primaries == 0 \|\|
224	2.89k	colour_primaries == 3 \|\|
225	2.83k	colour_primaries >= 11) {
226	2.72k	colour_primaries = 2;
227	2.72k	}
228
229	2.94k	transfer_characteristics = br->get_bits(8);
230	2.94k	if (transfer_characteristics == 0 \|\|
231	2.85k	transfer_characteristics == 3 \|\|
232	2.84k	transfer_characteristics >= 18) {
233	2.73k	transfer_characteristics = 2;
234	2.73k	}
235
236	2.94k	matrix_coeffs = br->get_bits(8);
237
238	2.94k	if (matrix_coeffs >= 11) {
239	2.45k	matrix_coeffs = 2;
240	2.45k	}
241	2.94k	}
242	3.23k	}
243
244
245		// --- chroma / interlaced ---
246
247	4.11k	chroma_loc_info_present_flag = br->get_bits(1);
248	4.11k	if (chroma_loc_info_present_flag) {
249	1.77k	if ((vlc = br->get_uvlc()) == UVLC_ERROR \|\| vlc > 5) {
250	21	errqueue->add_warning(DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE, false);
251	21	return DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE;
252	21	}
253	1.75k	chroma_sample_loc_type_top_field = vlc;
254
255	1.75k	if ((vlc = br->get_uvlc()) == UVLC_ERROR \|\| vlc > 5) {
256	12	errqueue->add_warning(DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE, false);
257	12	return DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE;
258	12	}
259	1.73k	chroma_sample_loc_type_bottom_field = vlc;
260	1.73k	}
261	2.33k	else {
262	2.33k	chroma_sample_loc_type_top_field = 0;
263	2.33k	chroma_sample_loc_type_bottom_field = 0;
264	2.33k	}
265
266	4.07k	neutral_chroma_indication_flag = br->get_bits(1);
267	4.07k	field_seq_flag = br->get_bits(1);
268	4.07k	frame_field_info_present_flag = br->get_bits(1);
269
270
271		// --- default display window ---
272
273	4.07k	default_display_window_flag = br->get_bits(1);
274	4.07k	if (default_display_window_flag) {
275	2.42k	READ_VLC(def_disp_win_left_offset, uvlc);
276	2.41k	READ_VLC(def_disp_win_right_offset, uvlc);
277	2.41k	READ_VLC(def_disp_win_top_offset, uvlc);
278	2.41k	READ_VLC(def_disp_win_bottom_offset, uvlc);
279	2.40k	}
280	1.65k	else {
281	1.65k	def_disp_win_left_offset = 0;
282	1.65k	def_disp_win_right_offset = 0;
283	1.65k	def_disp_win_top_offset = 0;
284	1.65k	def_disp_win_bottom_offset = 0;
285	1.65k	}
286
287
288		// --- timing ---
289
290	4.06k	vui_timing_info_present_flag = br->get_bits(1);
291	4.06k	if (vui_timing_info_present_flag) {
292	2.26k	vui_num_units_in_tick = br->get_bits(32);
293	2.26k	vui_time_scale = br->get_bits(32);
294
295	2.26k	vui_poc_proportional_to_timing_flag = br->get_bits(1);
296	2.26k	if (vui_poc_proportional_to_timing_flag) {
297	71	if ((vlc = br->get_uvlc()) == UVLC_ERROR) {
298	1	errqueue->add_warning(DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE, false);
299	1	return DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE;
300	1	}
301
302	70	vui_num_ticks_poc_diff_one = vlc + 1;
303	70	}
304
305		// --- hrd parameters ---
306
307	2.26k	vui_hrd_parameters_present_flag = br->get_bits(1);
308	2.26k	if (vui_hrd_parameters_present_flag) {
309	127	de265_error err;
310	127	err = hrd_parameters(errqueue, br, sps);
311	127	if (err) {
312	81	return err;
313	81	}
314	127	}
315	2.26k	}
316
317		// --- bitstream restriction ---
318
319	3.98k	bitstream_restriction_flag = br->get_bits(1);
320	3.98k	if (bitstream_restriction_flag) {
321	312	tiles_fixed_structure_flag = br->get_bits(1);
322	312	motion_vectors_over_pic_boundaries_flag = br->get_bits(1);
323	312	restricted_ref_pic_lists_flag = br->get_bits(1);
324
325	312	if ((vlc = br->get_uvlc()) == UVLC_ERROR \|\| vlc > 4095) {
326	15	errqueue->add_warning(DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE, false);
327	15	return DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE;
328	15	}
329	297	min_spatial_segmentation_idc = vlc;
330
331	297	if ((vlc = br->get_uvlc()) == UVLC_ERROR \|\| vlc > 16) {
332	12	errqueue->add_warning(DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE, false);
333	12	return DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE;
334	12	}
335	285	max_bytes_per_pic_denom = vlc;
336
337	285	if ((vlc = br->get_uvlc()) == UVLC_ERROR \|\| vlc > 16) {
338	13	errqueue->add_warning(DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE, false);
339	13	return DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE;
340	13	}
341	272	max_bits_per_min_cu_denom = vlc;
342
343	272	if ((vlc = br->get_uvlc()) == UVLC_ERROR \|\| vlc > 15) {
344	7	errqueue->add_warning(DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE, false);
345	7	return DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE;
346	7	}
347	265	log2_max_mv_length_horizontal = vlc;
348
349	265	if ((vlc = br->get_uvlc()) == UVLC_ERROR \|\| vlc > 15) {
350	6	errqueue->add_warning(DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE, false);
351	6	return DE265_ERROR_CODED_PARAMETER_OUT_OF_RANGE;
352	6	}
353	259	log2_max_mv_length_vertical = vlc;
354	259	}
355	3.67k	else {
356	3.67k	tiles_fixed_structure_flag = false;
357	3.67k	motion_vectors_over_pic_boundaries_flag = true;
358	3.67k	restricted_ref_pic_lists_flag = false; // NOTE: default not specified in standard 2014/10
359
360	3.67k	min_spatial_segmentation_idc = 0;
361	3.67k	max_bytes_per_pic_denom = 2;
362	3.67k	max_bits_per_min_cu_denom = 1;
363	3.67k	log2_max_mv_length_horizontal = 15;
364	3.67k	log2_max_mv_length_vertical = 15;
365	3.67k	}
366
367		//vui_read = true;
368
369	3.93k	return DE265_OK;
370	3.98k	}
371
372
373		void video_usability_information::dump(int fd) const
374	0	{
375		//#if (_MSC_VER >= 1500)
376		//#define LOG0(t) loginfo(LogHeaders, t)
377		//#define LOG1(t,d) loginfo(LogHeaders, t,d)
378		//#define LOG2(t,d1,d2) loginfo(LogHeaders, t,d1,d2)
379		//#define LOG3(t,d1,d2,d3) loginfo(LogHeaders, t,d1,d2,d3)
380
381	0	FILE* fh;
382	0	if (fd==1) fh=stdout;
383	0	else if (fd==2) fh=stderr;
384	0	else { return; }
385
386	0	#define LOG0(t) log2fh(fh, t)
387	0	#define LOG1(t,d) log2fh(fh, t,d)
388	0	#define LOG2(t,d1,d2) log2fh(fh, t,d1,d2)
389	0	#define LOG3(t,d1,d2,d3) log2fh(fh, t,d1,d2,d3)
390
391	0	LOG0("----------------- VUI -----------------\n");
392	0	LOG2("sample aspect ratio : %d:%d\n", sar_width,sar_height);
393	0	LOG1("overscan_info_present_flag : %d\n", overscan_info_present_flag);
394	0	LOG1("overscan_appropriate_flag : %d\n", overscan_appropriate_flag);
395
396	0	LOG1("video_signal_type_present_flag: %d\n", video_signal_type_present_flag);
397	0	if (video_signal_type_present_flag) {
398	0	LOG1(" video_format : %s\n", get_video_format_name(video_format));
399	0	LOG1(" video_full_range_flag : %d\n", video_full_range_flag);
400	0	LOG1(" colour_description_present_flag : %d\n", colour_description_present_flag);
401	0	LOG1(" colour_primaries : %d\n", colour_primaries);
402	0	LOG1(" transfer_characteristics : %d\n", transfer_characteristics);
403	0	LOG1(" matrix_coeffs : %d\n", matrix_coeffs);
404	0	}
405
406	0	LOG1("chroma_loc_info_present_flag: %d\n", chroma_loc_info_present_flag);
407	0	if (chroma_loc_info_present_flag) {
408	0	LOG1(" chroma_sample_loc_type_top_field : %d\n", chroma_sample_loc_type_top_field);
409	0	LOG1(" chroma_sample_loc_type_bottom_field: %d\n", chroma_sample_loc_type_bottom_field);
410	0	}
411
412	0	LOG1("neutral_chroma_indication_flag: %d\n", neutral_chroma_indication_flag);
413	0	LOG1("field_seq_flag : %d\n", field_seq_flag);
414	0	LOG1("frame_field_info_present_flag : %d\n", frame_field_info_present_flag);
415
416	0	LOG1("default_display_window_flag : %d\n", default_display_window_flag);
417	0	LOG1(" def_disp_win_left_offset : %d\n", def_disp_win_left_offset);
418	0	LOG1(" def_disp_win_right_offset : %d\n", def_disp_win_right_offset);
419	0	LOG1(" def_disp_win_top_offset : %d\n", def_disp_win_top_offset);
420	0	LOG1(" def_disp_win_bottom_offset : %d\n", def_disp_win_bottom_offset);
421
422	0	LOG1("vui_timing_info_present_flag : %d\n", vui_timing_info_present_flag);
423	0	if (vui_timing_info_present_flag) {
424	0	LOG1(" vui_num_units_in_tick : %d\n", vui_num_units_in_tick);
425	0	LOG1(" vui_time_scale : %d\n", vui_time_scale);
426	0	}
427
428	0	LOG1("vui_poc_proportional_to_timing_flag : %d\n", vui_poc_proportional_to_timing_flag);
429	0	LOG1("vui_num_ticks_poc_diff_one : %d\n", vui_num_ticks_poc_diff_one);
430
431	0	LOG1("vui_hrd_parameters_present_flag : %d\n", vui_hrd_parameters_present_flag);
432	0	if (vui_hrd_parameters_present_flag) {
433		//hrd_parameters vui_hrd_parameters;
434	0	}
435
436
437		// --- bitstream restriction ---
438
439	0	LOG1("bitstream_restriction_flag : %d\n", bitstream_restriction_flag);
440	0	if (bitstream_restriction_flag) {
441	0	LOG1(" tiles_fixed_structure_flag : %d\n", tiles_fixed_structure_flag);
442	0	LOG1(" motion_vectors_over_pic_boundaries_flag : %d\n", motion_vectors_over_pic_boundaries_flag);
443	0	LOG1(" restricted_ref_pic_lists_flag : %d\n", restricted_ref_pic_lists_flag);
444	0	LOG1(" min_spatial_segmentation_idc : %d\n", min_spatial_segmentation_idc);
445	0	LOG1(" max_bytes_per_pic_denom : %d\n", max_bytes_per_pic_denom);
446	0	LOG1(" max_bits_per_min_cu_denom : %d\n", max_bits_per_min_cu_denom);
447	0	LOG1(" log2_max_mv_length_horizontal : %d\n", log2_max_mv_length_horizontal);
448	0	LOG1(" log2_max_mv_length_vertical : %d\n", log2_max_mv_length_vertical);
449	0	}
450
451	0	#undef LOG0
452	0	#undef LOG1
453	0	#undef LOG2
454	0	#undef LOG3
455		//#endif
456	0	}