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<div class="title">h264_parser.h</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Copyright 2014 The Chromium Authors. All rights reserved.</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// Use of this source code is governed by a BSD-style license that can be</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// found in the LICENSE file.</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// This file contains an implementation of an H264 Annex-B video stream parser.</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> </div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#ifndef MEDIA_FILTERS_H264_PARSER_H_</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor"></span><span class="preprocessor">#define MEDIA_FILTERS_H264_PARSER_H_</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor"></span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include <stdint.h></span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include <stdlib.h></span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> </div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include <map></span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> </div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include "packager/media/filters/h264_bit_reader.h"</span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="keyword">namespace </span>edash_packager {</div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="keyword">namespace </span>media {</div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment">// On success, |coded_width| and |coded_height| contains coded resolution after</span></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">// cropping; |pixel_width:pixel_height| contains pixel aspect ratio, 1:1 is</span></div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment">// assigned if it is not present in SPS.</span></div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="keyword">struct </span>H264SPS;</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="keywordtype">bool</span> ExtractResolutionFromSps(<span class="keyword">const</span> H264SPS& sps,</div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  uint32_t* coded_width,</div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  uint32_t* coded_height,</div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  uint32_t* pixel_width,</div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  uint32_t* pixel_height);</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment">// For explanations of each struct and its members, see H.264 specification</span></div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment">// at http://www.itu.int/rec/T-REC-H.264.</span></div>
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<div class="line"><a name="l00032"></a><span class="lineno"><a class="line" href="../../dd/d41/structedash__packager_1_1media_1_1H264NALU.html"> 32</a></span> <span class="keyword">struct </span><a class="code" href="../../dd/d41/structedash__packager_1_1media_1_1H264NALU.html">H264NALU</a> {</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <a class="code" href="../../dd/d41/structedash__packager_1_1media_1_1H264NALU.html">H264NALU</a>();</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keyword">enum</span> Type {</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  kUnspecified = 0,</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  kNonIDRSlice = 1,</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  kIDRSlice = 5,</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  kSEIMessage = 6,</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  kSPS = 7,</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  kPPS = 8,</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  kAUD = 9,</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  kEOSeq = 10,</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  kEOStream = 11,</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  kCodedSliceExtension = 20,</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  };</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="comment">// After (without) start code; we don't own the underlying memory</span></div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="comment">// and a shallow copy should be made when copying this struct.</span></div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keyword">const</span> uint8_t* data;</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  off_t size; <span class="comment">// From after start code to start code of next NALU (or EOS).</span></div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keywordtype">int</span> nal_ref_idc;</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordtype">int</span> nal_unit_type;</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> };</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="keyword">enum</span> {</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  kH264ScalingList4x4Length = 16,</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  kH264ScalingList8x8Length = 64,</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> };</div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div>
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<div class="line"><a name="l00062"></a><span class="lineno"><a class="line" href="../../d8/db0/structedash__packager_1_1media_1_1H264SPS.html"> 62</a></span> <span class="keyword">struct </span><a class="code" href="../../d8/db0/structedash__packager_1_1media_1_1H264SPS.html">H264SPS</a> {</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <a class="code" href="../../d8/db0/structedash__packager_1_1media_1_1H264SPS.html">H264SPS</a>();</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> </div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordtype">int</span> profile_idc;</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordtype">bool</span> constraint_set0_flag;</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordtype">bool</span> constraint_set1_flag;</div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordtype">bool</span> constraint_set2_flag;</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordtype">bool</span> constraint_set3_flag;</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordtype">bool</span> constraint_set4_flag;</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordtype">bool</span> constraint_set5_flag;</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordtype">int</span> level_idc;</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordtype">int</span> seq_parameter_set_id;</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordtype">int</span> chroma_format_idc;</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordtype">bool</span> separate_colour_plane_flag;</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordtype">int</span> bit_depth_luma_minus8;</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keywordtype">int</span> bit_depth_chroma_minus8;</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keywordtype">bool</span> qpprime_y_zero_transform_bypass_flag;</div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keywordtype">bool</span> seq_scaling_matrix_present_flag;</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keywordtype">int</span> scaling_list4x4[6][kH264ScalingList4x4Length];</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordtype">int</span> scaling_list8x8[6][kH264ScalingList8x8Length];</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> </div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordtype">int</span> log2_max_frame_num_minus4;</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordtype">int</span> pic_order_cnt_type;</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordtype">int</span> log2_max_pic_order_cnt_lsb_minus4;</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordtype">bool</span> delta_pic_order_always_zero_flag;</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordtype">int</span> offset_for_non_ref_pic;</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordtype">int</span> offset_for_top_to_bottom_field;</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keywordtype">int</span> num_ref_frames_in_pic_order_cnt_cycle;</div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keywordtype">int</span> expected_delta_per_pic_order_cnt_cycle; <span class="comment">// calculated</span></div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keywordtype">int</span> offset_for_ref_frame[255];</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordtype">int</span> max_num_ref_frames;</div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordtype">bool</span> gaps_in_frame_num_value_allowed_flag;</div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordtype">int</span> pic_width_in_mbs_minus1;</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keywordtype">int</span> pic_height_in_map_units_minus1;</div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keywordtype">bool</span> frame_mbs_only_flag;</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keywordtype">bool</span> mb_adaptive_frame_field_flag;</div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keywordtype">bool</span> direct_8x8_inference_flag;</div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordtype">bool</span> frame_cropping_flag;</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keywordtype">int</span> frame_crop_left_offset;</div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keywordtype">int</span> frame_crop_right_offset;</div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordtype">int</span> frame_crop_top_offset;</div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordtype">int</span> frame_crop_bottom_offset;</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> </div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordtype">bool</span> vui_parameters_present_flag;</div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordtype">int</span> sar_width; <span class="comment">// Set to 0 when not specified.</span></div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keywordtype">int</span> sar_height; <span class="comment">// Set to 0 when not specified.</span></div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keywordtype">bool</span> bitstream_restriction_flag;</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordtype">int</span> max_num_reorder_frames;</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordtype">int</span> max_dec_frame_buffering;</div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> </div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keywordtype">int</span> chroma_array_type;</div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> };</div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> </div>
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<div class="line"><a name="l00117"></a><span class="lineno"><a class="line" href="../../dd/dcf/structedash__packager_1_1media_1_1H264PPS.html"> 117</a></span> <span class="keyword">struct </span><a class="code" href="../../dd/dcf/structedash__packager_1_1media_1_1H264PPS.html">H264PPS</a> {</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <a class="code" href="../../dd/dcf/structedash__packager_1_1media_1_1H264PPS.html">H264PPS</a>();</div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span> </div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordtype">int</span> pic_parameter_set_id;</div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keywordtype">int</span> seq_parameter_set_id;</div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keywordtype">bool</span> entropy_coding_mode_flag;</div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keywordtype">bool</span> bottom_field_pic_order_in_frame_present_flag;</div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordtype">int</span> num_slice_groups_minus1;</div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordtype">int</span> num_ref_idx_l0_default_active_minus1;</div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keywordtype">int</span> num_ref_idx_l1_default_active_minus1;</div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordtype">bool</span> weighted_pred_flag;</div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordtype">int</span> weighted_bipred_idc;</div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordtype">int</span> pic_init_qp_minus26;</div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordtype">int</span> pic_init_qs_minus26;</div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordtype">int</span> chroma_qp_index_offset;</div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordtype">bool</span> deblocking_filter_control_present_flag;</div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keywordtype">bool</span> constrained_intra_pred_flag;</div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keywordtype">bool</span> redundant_pic_cnt_present_flag;</div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keywordtype">bool</span> transform_8x8_mode_flag;</div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> </div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keywordtype">bool</span> pic_scaling_matrix_present_flag;</div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keywordtype">int</span> scaling_list4x4[6][kH264ScalingList4x4Length];</div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordtype">int</span> scaling_list8x8[6][kH264ScalingList8x8Length];</div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> </div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keywordtype">int</span> second_chroma_qp_index_offset;</div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> };</div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> </div>
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<div class="line"><a name="l00144"></a><span class="lineno"><a class="line" href="../../d9/d76/structedash__packager_1_1media_1_1H264ModificationOfPicNum.html"> 144</a></span> <span class="keyword">struct </span><a class="code" href="../../d9/d76/structedash__packager_1_1media_1_1H264ModificationOfPicNum.html">H264ModificationOfPicNum</a> {</div>
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keywordtype">int</span> modification_of_pic_nums_idc;</div>
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<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keyword">union </span>{</div>
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordtype">int</span> abs_diff_pic_num_minus1;</div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordtype">int</span> long_term_pic_num;</div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  };</div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> };</div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> </div>
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<div class="line"><a name="l00152"></a><span class="lineno"><a class="line" href="../../d3/dbc/structedash__packager_1_1media_1_1H264WeightingFactors.html"> 152</a></span> <span class="keyword">struct </span><a class="code" href="../../d3/dbc/structedash__packager_1_1media_1_1H264WeightingFactors.html">H264WeightingFactors</a> {</div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keywordtype">bool</span> luma_weight_flag;</div>
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<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordtype">bool</span> chroma_weight_flag;</div>
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<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keywordtype">int</span> luma_weight[32];</div>
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<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keywordtype">int</span> luma_offset[32];</div>
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<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keywordtype">int</span> chroma_weight[32][2];</div>
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<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordtype">int</span> chroma_offset[32][2];</div>
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<div class="line"><a name="l00159"></a><span class="lineno"> 159</span> };</div>
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<div class="line"><a name="l00160"></a><span class="lineno"> 160</span> </div>
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<div class="line"><a name="l00161"></a><span class="lineno"><a class="line" href="../../d2/d50/structedash__packager_1_1media_1_1H264DecRefPicMarking.html"> 161</a></span> <span class="keyword">struct </span><a class="code" href="../../d2/d50/structedash__packager_1_1media_1_1H264DecRefPicMarking.html">H264DecRefPicMarking</a> {</div>
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<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordtype">int</span> memory_mgmnt_control_operation;</div>
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<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordtype">int</span> difference_of_pic_nums_minus1;</div>
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<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordtype">int</span> long_term_pic_num;</div>
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<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="keywordtype">int</span> long_term_frame_idx;</div>
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<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keywordtype">int</span> max_long_term_frame_idx_plus1;</div>
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<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> };</div>
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<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> </div>
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<div class="line"><a name="l00169"></a><span class="lineno"><a class="line" href="../../de/d8d/structedash__packager_1_1media_1_1H264SliceHeader.html"> 169</a></span> <span class="keyword">struct </span><a class="code" href="../../de/d8d/structedash__packager_1_1media_1_1H264SliceHeader.html">H264SliceHeader</a> {</div>
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<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <a class="code" href="../../de/d8d/structedash__packager_1_1media_1_1H264SliceHeader.html">H264SliceHeader</a>();</div>
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<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> </div>
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<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keyword">enum</span> {</div>
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<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  kRefListSize = 32,</div>
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<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  kRefListModSize = kRefListSize</div>
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<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  };</div>
|
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<div class="line"><a name="l00176"></a><span class="lineno"> 176</span> </div>
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<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="keyword">enum</span> Type {</div>
|
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<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  kPSlice = 0,</div>
|
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<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  kBSlice = 1,</div>
|
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<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  kISlice = 2,</div>
|
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<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  kSPSlice = 3,</div>
|
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<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  kSISlice = 4,</div>
|
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<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  };</div>
|
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<div class="line"><a name="l00184"></a><span class="lineno"> 184</span> </div>
|
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<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keywordtype">bool</span> IsPSlice() <span class="keyword">const</span>;</div>
|
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<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordtype">bool</span> IsBSlice() <span class="keyword">const</span>;</div>
|
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<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keywordtype">bool</span> IsISlice() <span class="keyword">const</span>;</div>
|
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<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keywordtype">bool</span> IsSPSlice() <span class="keyword">const</span>;</div>
|
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<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="keywordtype">bool</span> IsSISlice() <span class="keyword">const</span>;</div>
|
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<div class="line"><a name="l00190"></a><span class="lineno"> 190</span> </div>
|
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<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="keywordtype">bool</span> idr_pic_flag; <span class="comment">// from NAL header</span></div>
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|
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="keywordtype">int</span> nal_ref_idc; <span class="comment">// from NAL header</span></div>
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|
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keyword">const</span> uint8_t* nalu_data; <span class="comment">// from NAL header</span></div>
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|
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  off_t nalu_size; <span class="comment">// from NAL header</span></div>
|
|
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  off_t header_bit_size; <span class="comment">// calculated</span></div>
|
|
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span> </div>
|
|
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keywordtype">int</span> first_mb_in_slice;</div>
|
|
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="keywordtype">int</span> slice_type;</div>
|
|
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="keywordtype">int</span> pic_parameter_set_id;</div>
|
|
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keywordtype">int</span> colour_plane_id;</div>
|
|
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keywordtype">int</span> frame_num;</div>
|
|
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keywordtype">bool</span> field_pic_flag;</div>
|
|
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keywordtype">bool</span> bottom_field_flag;</div>
|
|
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="keywordtype">int</span> idr_pic_id;</div>
|
|
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keywordtype">int</span> pic_order_cnt_lsb;</div>
|
|
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keywordtype">int</span> delta_pic_order_cnt_bottom;</div>
|
|
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="keywordtype">int</span> delta_pic_order_cnt[2];</div>
|
|
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="keywordtype">int</span> redundant_pic_cnt;</div>
|
|
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="keywordtype">bool</span> direct_spatial_mv_pred_flag;</div>
|
|
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span> </div>
|
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<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="keywordtype">bool</span> num_ref_idx_active_override_flag;</div>
|
|
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordtype">int</span> num_ref_idx_l0_active_minus1;</div>
|
|
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="keywordtype">int</span> num_ref_idx_l1_active_minus1;</div>
|
|
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keywordtype">bool</span> ref_pic_list_modification_flag_l0;</div>
|
|
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keywordtype">bool</span> ref_pic_list_modification_flag_l1;</div>
|
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<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  <a class="code" href="../../d9/d76/structedash__packager_1_1media_1_1H264ModificationOfPicNum.html">H264ModificationOfPicNum</a> ref_list_l0_modifications[kRefListModSize];</div>
|
|
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <a class="code" href="../../d9/d76/structedash__packager_1_1media_1_1H264ModificationOfPicNum.html">H264ModificationOfPicNum</a> ref_list_l1_modifications[kRefListModSize];</div>
|
|
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span> </div>
|
|
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="keywordtype">int</span> luma_log2_weight_denom;</div>
|
|
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keywordtype">int</span> chroma_log2_weight_denom;</div>
|
|
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> </div>
|
|
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keywordtype">bool</span> luma_weight_l0_flag;</div>
|
|
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keywordtype">bool</span> chroma_weight_l0_flag;</div>
|
|
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <a class="code" href="../../d3/dbc/structedash__packager_1_1media_1_1H264WeightingFactors.html">H264WeightingFactors</a> pred_weight_table_l0;</div>
|
|
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span> </div>
|
|
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <span class="keywordtype">bool</span> luma_weight_l1_flag;</div>
|
|
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="keywordtype">bool</span> chroma_weight_l1_flag;</div>
|
|
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <a class="code" href="../../d3/dbc/structedash__packager_1_1media_1_1H264WeightingFactors.html">H264WeightingFactors</a> pred_weight_table_l1;</div>
|
|
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span> </div>
|
|
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="keywordtype">bool</span> no_output_of_prior_pics_flag;</div>
|
|
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="keywordtype">bool</span> long_term_reference_flag;</div>
|
|
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span> </div>
|
|
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="keywordtype">bool</span> adaptive_ref_pic_marking_mode_flag;</div>
|
|
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <a class="code" href="../../d2/d50/structedash__packager_1_1media_1_1H264DecRefPicMarking.html">H264DecRefPicMarking</a> ref_pic_marking[kRefListSize];</div>
|
|
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span> </div>
|
|
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="keywordtype">int</span> cabac_init_idc;</div>
|
|
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="keywordtype">int</span> slice_qp_delta;</div>
|
|
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="keywordtype">bool</span> sp_for_switch_flag;</div>
|
|
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="keywordtype">int</span> slice_qs_delta;</div>
|
|
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="keywordtype">int</span> disable_deblocking_filter_idc;</div>
|
|
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="keywordtype">int</span> slice_alpha_c0_offset_div2;</div>
|
|
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="keywordtype">int</span> slice_beta_offset_div2;</div>
|
|
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span> };</div>
|
|
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span> </div>
|
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<div class="line"><a name="l00245"></a><span class="lineno"><a class="line" href="../../d4/dca/structedash__packager_1_1media_1_1H264SEIRecoveryPoint.html"> 245</a></span> <span class="keyword">struct </span><a class="code" href="../../d4/dca/structedash__packager_1_1media_1_1H264SEIRecoveryPoint.html">H264SEIRecoveryPoint</a> {</div>
|
|
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="keywordtype">int</span> recovery_frame_cnt;</div>
|
|
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="keywordtype">bool</span> exact_match_flag;</div>
|
|
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="keywordtype">bool</span> broken_link_flag;</div>
|
|
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <span class="keywordtype">int</span> changing_slice_group_idc;</div>
|
|
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span> };</div>
|
|
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span> </div>
|
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<div class="line"><a name="l00252"></a><span class="lineno"><a class="line" href="../../d4/d93/structedash__packager_1_1media_1_1H264SEIMessage.html"> 252</a></span> <span class="keyword">struct </span><a class="code" href="../../d4/d93/structedash__packager_1_1media_1_1H264SEIMessage.html">H264SEIMessage</a> {</div>
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<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <a class="code" href="../../d4/d93/structedash__packager_1_1media_1_1H264SEIMessage.html">H264SEIMessage</a>();</div>
|
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<div class="line"><a name="l00254"></a><span class="lineno"> 254</span> </div>
|
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<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="keyword">enum</span> Type {</div>
|
|
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  kSEIRecoveryPoint = 6,</div>
|
|
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  };</div>
|
|
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span> </div>
|
|
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <span class="keywordtype">int</span> type;</div>
|
|
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  <span class="keywordtype">int</span> payload_size;</div>
|
|
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="keyword">union </span>{</div>
|
|
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <span class="comment">// Placeholder; in future more supported types will contribute to more</span></div>
|
|
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  <span class="comment">// union members here.</span></div>
|
|
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  <a class="code" href="../../d4/dca/structedash__packager_1_1media_1_1H264SEIRecoveryPoint.html">H264SEIRecoveryPoint</a> recovery_point;</div>
|
|
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  };</div>
|
|
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span> };</div>
|
|
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span> </div>
|
|
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span> <span class="comment">// Class to parse an Annex-B H.264 stream,</span></div>
|
|
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span> <span class="comment">// as specified in chapters 7 and Annex B of the H.264 spec.</span></div>
|
|
<div class="line"><a name="l00270"></a><span class="lineno"><a class="line" href="../../d6/da3/classedash__packager_1_1media_1_1H264Parser.html"> 270</a></span> <span class="keyword">class </span><a class="code" href="../../d6/da3/classedash__packager_1_1media_1_1H264Parser.html">H264Parser</a> {</div>
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|
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <span class="keyword">public</span>:</div>
|
|
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  <span class="keyword">enum</span> Result {</div>
|
|
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  kOk,</div>
|
|
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  kInvalidStream, <span class="comment">// error in stream</span></div>
|
|
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  kUnsupportedStream, <span class="comment">// stream not supported by the parser</span></div>
|
|
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  kEOStream, <span class="comment">// end of stream</span></div>
|
|
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  };</div>
|
|
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span> </div>
|
|
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <span class="comment">// Find offset from start of data to next NALU start code</span></div>
|
|
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <span class="comment">// and size of found start code (3 or 4 bytes).</span></div>
|
|
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  <span class="comment">// If no start code is found, offset is pointing to the first unprocessed byte</span></div>
|
|
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <span class="comment">// (i.e. the first byte that was not considered as a possible start of a start</span></div>
|
|
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <span class="comment">// code) and |*start_code_size| is set to 0.</span></div>
|
|
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="comment">// Preconditions:</span></div>
|
|
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <span class="comment">// - |data_size| >= 0</span></div>
|
|
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  <span class="comment">// Postconditions:</span></div>
|
|
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <span class="comment">// - |*offset| is between 0 and |data_size| included.</span></div>
|
|
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  <span class="comment">// It is strictly less than |data_size| if |data_size| > 0.</span></div>
|
|
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="comment">// - |*start_code_size| is either 0, 3 or 4.</span></div>
|
|
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="keyword">static</span> <span class="keywordtype">bool</span> FindStartCode(<span class="keyword">const</span> uint8_t* data,</div>
|
|
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  off_t data_size,</div>
|
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<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  off_t* offset,</div>
|
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<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  off_t* start_code_size);</div>
|
|
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span> </div>
|
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<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  <a class="code" href="../../d6/da3/classedash__packager_1_1media_1_1H264Parser.html">H264Parser</a>();</div>
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|
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  ~<a class="code" href="../../d6/da3/classedash__packager_1_1media_1_1H264Parser.html">H264Parser</a>();</div>
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|
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span> </div>
|
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<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  <span class="keywordtype">void</span> Reset();</div>
|
|
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  <span class="comment">// Set current stream pointer to |stream| of |stream_size| in bytes,</span></div>
|
|
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  <span class="comment">// |stream| owned by caller.</span></div>
|
|
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  <span class="keywordtype">void</span> SetStream(<span class="keyword">const</span> uint8_t* stream, off_t stream_size);</div>
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|
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span> </div>
|
|
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <span class="comment">// Read the stream to find the next NALU, identify it and return</span></div>
|
|
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  <span class="comment">// that information in |*nalu|. This advances the stream to the beginning</span></div>
|
|
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  <span class="comment">// of this NALU, but not past it, so subsequent calls to NALU-specific</span></div>
|
|
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  <span class="comment">// parsing functions (ParseSPS, etc.) will parse this NALU.</span></div>
|
|
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  <span class="comment">// If the caller wishes to skip the current NALU, it can call this function</span></div>
|
|
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <span class="comment">// again, instead of any NALU-type specific parse functions below.</span></div>
|
|
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  Result AdvanceToNextNALU(<a class="code" href="../../dd/d41/structedash__packager_1_1media_1_1H264NALU.html">H264NALU</a>* nalu);</div>
|
|
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span> </div>
|
|
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <span class="comment">// NALU-specific parsing functions.</span></div>
|
|
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  <span class="comment">// These should be called after AdvanceToNextNALU().</span></div>
|
|
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span> </div>
|
|
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <span class="comment">// SPSes and PPSes are owned by the parser class and the memory for their</span></div>
|
|
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="comment">// structures is managed here, not by the caller, as they are reused</span></div>
|
|
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="comment">// across NALUs.</span></div>
|
|
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="comment">//</span></div>
|
|
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <span class="comment">// Parse an SPS/PPS NALU and save their data in the parser, returning id</span></div>
|
|
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="comment">// of the parsed structure in |*pps_id|/|*sps_id|.</span></div>
|
|
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="comment">// To get a pointer to a given SPS/PPS structure, use GetSPS()/GetPPS(),</span></div>
|
|
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  <span class="comment">// passing the returned |*sps_id|/|*pps_id| as parameter.</span></div>
|
|
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <span class="comment">// methods with a scoped_ptr and adding an AtEOS() function to check for EOS</span></div>
|
|
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="comment">// if Parse*() return NULL.</span></div>
|
|
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  Result ParseSPS(<span class="keywordtype">int</span>* sps_id);</div>
|
|
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  Result ParsePPS(<span class="keywordtype">int</span>* pps_id);</div>
|
|
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span> </div>
|
|
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <span class="comment">// Samme as ParseSPS but instead uses |sps_data|.</span></div>
|
|
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  Result ParseSPSFromArray(<span class="keyword">const</span> uint8_t* sps_data,</div>
|
|
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  <span class="keywordtype">size_t</span> sps_data_size,</div>
|
|
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <span class="keywordtype">int</span>* sps_id);</div>
|
|
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span> </div>
|
|
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  <span class="comment">// Return a pointer to SPS/PPS with given |sps_id|/|pps_id| or NULL if not</span></div>
|
|
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <span class="comment">// present.</span></div>
|
|
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  <span class="keyword">const</span> <a class="code" href="../../d8/db0/structedash__packager_1_1media_1_1H264SPS.html">H264SPS</a>* GetSPS(<span class="keywordtype">int</span> sps_id);</div>
|
|
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  <span class="keyword">const</span> <a class="code" href="../../dd/dcf/structedash__packager_1_1media_1_1H264PPS.html">H264PPS</a>* GetPPS(<span class="keywordtype">int</span> pps_id);</div>
|
|
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span> </div>
|
|
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="comment">// Slice headers and SEI messages are not used across NALUs by the parser</span></div>
|
|
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  <span class="comment">// and can be discarded after current NALU, so the parser does not store</span></div>
|
|
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  <span class="comment">// them, nor does it manage their memory.</span></div>
|
|
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <span class="comment">// The caller has to provide and manage it instead.</span></div>
|
|
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span> </div>
|
|
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  <span class="comment">// Parse a slice header, returning it in |*shdr|. |*nalu| must be set to</span></div>
|
|
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  <span class="comment">// the NALU returned from AdvanceToNextNALU() and corresponding to |*shdr|.</span></div>
|
|
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  Result ParseSliceHeader(<span class="keyword">const</span> <a class="code" href="../../dd/d41/structedash__packager_1_1media_1_1H264NALU.html">H264NALU</a>& nalu, <a class="code" href="../../de/d8d/structedash__packager_1_1media_1_1H264SliceHeader.html">H264SliceHeader</a>* shdr);</div>
|
|
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span> </div>
|
|
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  <span class="comment">// Parse a SEI message, returning it in |*sei_msg|, provided and managed</span></div>
|
|
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <span class="comment">// by the caller.</span></div>
|
|
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  Result ParseSEI(<a class="code" href="../../d4/d93/structedash__packager_1_1media_1_1H264SEIMessage.html">H264SEIMessage</a>* sei_msg);</div>
|
|
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span> </div>
|
|
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <span class="keyword">private</span>:</div>
|
|
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  <span class="comment">// Move the stream pointer to the beginning of the next NALU,</span></div>
|
|
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  <span class="comment">// i.e. pointing at the next start code.</span></div>
|
|
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  <span class="comment">// Return true if a NALU has been found.</span></div>
|
|
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  <span class="comment">// If a NALU is found:</span></div>
|
|
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  <span class="comment">// - its size in bytes is returned in |*nalu_size| and includes</span></div>
|
|
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  <span class="comment">// the start code as well as the trailing zero bits.</span></div>
|
|
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  <span class="comment">// - the size in bytes of the start code is returned in |*start_code_size|.</span></div>
|
|
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  <span class="keywordtype">bool</span> LocateNALU(off_t* nalu_size, off_t* start_code_size);</div>
|
|
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span> </div>
|
|
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <span class="comment">// Exp-Golomb code parsing as specified in chapter 9.1 of the spec.</span></div>
|
|
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  <span class="comment">// Read one unsigned exp-Golomb code from the stream and return in |*val|.</span></div>
|
|
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  Result ReadUE(<span class="keywordtype">int</span>* val);</div>
|
|
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span> </div>
|
|
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  <span class="comment">// Read one signed exp-Golomb code from the stream and return in |*val|.</span></div>
|
|
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  Result ReadSE(<span class="keywordtype">int</span>* val);</div>
|
|
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span> </div>
|
|
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  <span class="comment">// Parse scaling lists (see spec).</span></div>
|
|
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  Result ParseScalingList(<span class="keywordtype">int</span> size, <span class="keywordtype">int</span>* scaling_list, <span class="keywordtype">bool</span>* use_default);</div>
|
|
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  Result ParseSPSScalingLists(<a class="code" href="../../d8/db0/structedash__packager_1_1media_1_1H264SPS.html">H264SPS</a>* sps);</div>
|
|
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  Result ParsePPSScalingLists(<span class="keyword">const</span> <a class="code" href="../../d8/db0/structedash__packager_1_1media_1_1H264SPS.html">H264SPS</a>& sps, <a class="code" href="../../dd/dcf/structedash__packager_1_1media_1_1H264PPS.html">H264PPS</a>* pps);</div>
|
|
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span> </div>
|
|
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  <span class="comment">// Parse optional VUI parameters in SPS (see spec).</span></div>
|
|
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  Result ParseVUIParameters(<a class="code" href="../../d8/db0/structedash__packager_1_1media_1_1H264SPS.html">H264SPS</a>* sps);</div>
|
|
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  <span class="comment">// Set |hrd_parameters_present| to true only if they are present.</span></div>
|
|
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  Result ParseAndIgnoreHRDParameters(<span class="keywordtype">bool</span>* hrd_parameters_present);</div>
|
|
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span> </div>
|
|
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  <span class="comment">// Parse reference picture lists' modifications (see spec).</span></div>
|
|
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  Result ParseRefPicListModifications(<a class="code" href="../../de/d8d/structedash__packager_1_1media_1_1H264SliceHeader.html">H264SliceHeader</a>* shdr);</div>
|
|
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  Result ParseRefPicListModification(<span class="keywordtype">int</span> num_ref_idx_active_minus1,</div>
|
|
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  <a class="code" href="../../d9/d76/structedash__packager_1_1media_1_1H264ModificationOfPicNum.html">H264ModificationOfPicNum</a>* ref_list_mods);</div>
|
|
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span> </div>
|
|
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  <span class="comment">// Parse prediction weight table (see spec).</span></div>
|
|
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  Result ParsePredWeightTable(<span class="keyword">const</span> <a class="code" href="../../d8/db0/structedash__packager_1_1media_1_1H264SPS.html">H264SPS</a>& sps, <a class="code" href="../../de/d8d/structedash__packager_1_1media_1_1H264SliceHeader.html">H264SliceHeader</a>* shdr);</div>
|
|
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span> </div>
|
|
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  <span class="comment">// Parse weighting factors (see spec).</span></div>
|
|
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  Result ParseWeightingFactors(<span class="keywordtype">int</span> num_ref_idx_active_minus1,</div>
|
|
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  <span class="keywordtype">int</span> chroma_array_type,</div>
|
|
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  <span class="keywordtype">int</span> luma_log2_weight_denom,</div>
|
|
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  <span class="keywordtype">int</span> chroma_log2_weight_denom,</div>
|
|
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  <a class="code" href="../../d3/dbc/structedash__packager_1_1media_1_1H264WeightingFactors.html">H264WeightingFactors</a>* w_facts);</div>
|
|
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span> </div>
|
|
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  <span class="comment">// Parse decoded reference picture marking information (see spec).</span></div>
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<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  Result ParseDecRefPicMarking(<a class="code" href="../../de/d8d/structedash__packager_1_1media_1_1H264SliceHeader.html">H264SliceHeader</a>* shdr);</div>
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<div class="line"><a name="l00394"></a><span class="lineno"> 394</span> </div>
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<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  <span class="comment">// Pointer to the current NALU in the stream.</span></div>
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<div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  <span class="keyword">const</span> uint8_t* stream_;</div>
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<div class="line"><a name="l00397"></a><span class="lineno"> 397</span> </div>
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<div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  <span class="comment">// Bytes left in the stream after the current NALU.</span></div>
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<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  off_t bytes_left_;</div>
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<div class="line"><a name="l00400"></a><span class="lineno"> 400</span> </div>
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<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  <a class="code" href="../../d4/d55/classedash__packager_1_1media_1_1H264BitReader.html">H264BitReader</a> br_;</div>
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<div class="line"><a name="l00402"></a><span class="lineno"> 402</span> </div>
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<div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  <span class="comment">// PPSes and SPSes stored for future reference.</span></div>
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<div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  <span class="keyword">typedef</span> std::map<int, H264SPS*> SPSById;</div>
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<div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  <span class="keyword">typedef</span> std::map<int, H264PPS*> PPSById;</div>
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<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  SPSById active_SPSes_;</div>
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<div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  PPSById active_PPSes_;</div>
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<div class="line"><a name="l00408"></a><span class="lineno"> 408</span> </div>
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<div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  DISALLOW_COPY_AND_ASSIGN(<a class="code" href="../../d6/da3/classedash__packager_1_1media_1_1H264Parser.html">H264Parser</a>);</div>
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<div class="line"><a name="l00410"></a><span class="lineno"> 410</span> };</div>
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<div class="line"><a name="l00411"></a><span class="lineno"> 411</span> </div>
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<div class="line"><a name="l00412"></a><span class="lineno"> 412</span> } <span class="comment">// namespace media</span></div>
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<div class="line"><a name="l00413"></a><span class="lineno"> 413</span> } <span class="comment">// namespace edash_packager</span></div>
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<div class="line"><a name="l00414"></a><span class="lineno"> 414</span> </div>
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<div class="line"><a name="l00415"></a><span class="lineno"> 415</span> <span class="preprocessor">#endif // MEDIA_FILTERS_H264_PARSER_H_</span></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1H264BitReader_html"><div class="ttname"><a href="../../d4/d55/classedash__packager_1_1media_1_1H264BitReader.html">edash_packager::media::H264BitReader</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d9/d91/h264__bit__reader_8h_source.html#l00022">h264_bit_reader.h:22</a></div></div>
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<div class="ttc" id="structedash__packager_1_1media_1_1H264SliceHeader_html"><div class="ttname"><a href="../../de/d8d/structedash__packager_1_1media_1_1H264SliceHeader.html">edash_packager::media::H264SliceHeader</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d6/d9b/h264__parser_8h_source.html#l00169">h264_parser.h:169</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1H264Parser_html"><div class="ttname"><a href="../../d6/da3/classedash__packager_1_1media_1_1H264Parser.html">edash_packager::media::H264Parser</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d6/d9b/h264__parser_8h_source.html#l00270">h264_parser.h:270</a></div></div>
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<div class="ttc" id="structedash__packager_1_1media_1_1H264NALU_html"><div class="ttname"><a href="../../dd/d41/structedash__packager_1_1media_1_1H264NALU.html">edash_packager::media::H264NALU</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d6/d9b/h264__parser_8h_source.html#l00032">h264_parser.h:32</a></div></div>
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<div class="ttc" id="structedash__packager_1_1media_1_1H264ModificationOfPicNum_html"><div class="ttname"><a href="../../d9/d76/structedash__packager_1_1media_1_1H264ModificationOfPicNum.html">edash_packager::media::H264ModificationOfPicNum</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d6/d9b/h264__parser_8h_source.html#l00144">h264_parser.h:144</a></div></div>
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<div class="ttc" id="structedash__packager_1_1media_1_1H264DecRefPicMarking_html"><div class="ttname"><a href="../../d2/d50/structedash__packager_1_1media_1_1H264DecRefPicMarking.html">edash_packager::media::H264DecRefPicMarking</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d6/d9b/h264__parser_8h_source.html#l00161">h264_parser.h:161</a></div></div>
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<div class="ttc" id="structedash__packager_1_1media_1_1H264SEIRecoveryPoint_html"><div class="ttname"><a href="../../d4/dca/structedash__packager_1_1media_1_1H264SEIRecoveryPoint.html">edash_packager::media::H264SEIRecoveryPoint</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d6/d9b/h264__parser_8h_source.html#l00245">h264_parser.h:245</a></div></div>
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<div class="ttc" id="structedash__packager_1_1media_1_1H264SEIMessage_html"><div class="ttname"><a href="../../d4/d93/structedash__packager_1_1media_1_1H264SEIMessage.html">edash_packager::media::H264SEIMessage</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d6/d9b/h264__parser_8h_source.html#l00252">h264_parser.h:252</a></div></div>
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<div class="ttc" id="structedash__packager_1_1media_1_1H264WeightingFactors_html"><div class="ttname"><a href="../../d3/dbc/structedash__packager_1_1media_1_1H264WeightingFactors.html">edash_packager::media::H264WeightingFactors</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d6/d9b/h264__parser_8h_source.html#l00152">h264_parser.h:152</a></div></div>
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<div class="ttc" id="structedash__packager_1_1media_1_1H264SPS_html"><div class="ttname"><a href="../../d8/db0/structedash__packager_1_1media_1_1H264SPS.html">edash_packager::media::H264SPS</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d6/d9b/h264__parser_8h_source.html#l00062">h264_parser.h:62</a></div></div>
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<div class="ttc" id="structedash__packager_1_1media_1_1H264PPS_html"><div class="ttname"><a href="../../dd/dcf/structedash__packager_1_1media_1_1H264PPS.html">edash_packager::media::H264PPS</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d6/d9b/h264__parser_8h_source.html#l00117">h264_parser.h:117</a></div></div>
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</a> 1.8.6
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