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<li class="navelem"><a class="el" href="../../dir_3f8eec2fc361645de4b1ec14c19fffc7.html">packager</a></li><li class="navelem"><a class="el" href="../../dir_f99dae54fe7170f791f339b952d5067a.html">media</a></li><li class="navelem"><a class="el" href="../../dir_375ba2cfd8fd5b05c50b92d996b9d386.html">formats</a></li><li class="navelem"><a class="el" href="../../dir_ae142483ff91a68c468a97c037f98d4d.html">mp4</a></li> </ul>
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<div class="title">fragmenter.cc</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 Google Inc. All rights reserved.</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">//</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Use of this source code is governed by a BSD-style</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// license that can be found in the LICENSE file or at</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// https://developers.google.com/open-source/licenses/bsd</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> </div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#include "packager/media/formats/mp4/fragmenter.h"</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> </div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#include <algorithm></span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include <limits></span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> </div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include "packager/media/base/audio_stream_info.h"</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include "packager/media/base/buffer_writer.h"</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "packager/media/base/media_sample.h"</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include "packager/media/formats/mp4/box_definitions.h"</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include "packager/media/formats/mp4/key_frame_info.h"</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="keyword">namespace </span><a class="code" href="../../d8/daf/namespaceshaka.html">shaka</a> {</div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="keyword">namespace </span>media {</div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="keyword">namespace </span>mp4 {</div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="keyword">namespace </span>{</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="keyword">const</span> int64_t kInvalidTime = std::numeric_limits<int64_t>::max();</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> uint64_t GetSeekPreroll(<span class="keyword">const</span> StreamInfo& stream_info) {</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <span class="keywordflow">if</span> (stream_info.stream_type() != kStreamAudio)</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <span class="keyword">const</span> AudioStreamInfo& audio_stream_info =</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <span class="keyword">static_cast<</span><span class="keyword">const </span>AudioStreamInfo&<span class="keyword">></span>(stream_info);</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <span class="keywordflow">return</span> audio_stream_info.seek_preroll_ns();</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> }</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="keywordtype">void</span> NewSampleEncryptionEntry(<span class="keyword">const</span> DecryptConfig& decrypt_config,</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="keywordtype">bool</span> use_constant_iv,</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  TrackFragment* traf) {</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  SampleEncryption& sample_encryption = traf->sample_encryption;</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  SampleEncryptionEntry sample_encryption_entry;</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keywordflow">if</span> (!use_constant_iv)</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  sample_encryption_entry.initialization_vector = decrypt_config.iv();</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  sample_encryption_entry.subsamples = decrypt_config.subsamples();</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  sample_encryption.sample_encryption_entries.push_back(</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  sample_encryption_entry);</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  traf->auxiliary_size.sample_info_sizes.push_back(</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  sample_encryption_entry.ComputeSize());</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> }</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> } <span class="comment">// namespace</span></div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div><div class="line"><a name="l00049"></a><span class="lineno"><a class="line" href="../../db/d95/classshaka_1_1media_1_1mp4_1_1Fragmenter.html#a9ce106b464eba1449408ea74dc0e0628"> 49</a></span> <a class="code" href="../../db/d95/classshaka_1_1media_1_1mp4_1_1Fragmenter.html#a9ce106b464eba1449408ea74dc0e0628">Fragmenter::Fragmenter</a>(std::shared_ptr<const StreamInfo> stream_info,</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <a class="code" href="../../df/d7b/structshaka_1_1media_1_1mp4_1_1TrackFragment.html">TrackFragment</a>* traf)</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  : stream_info_(<a class="code" href="../../d8/dcc/namespacestd.html">std</a>::move(stream_info)),</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  use_decoding_timestamp_in_timeline_(false),</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  traf_(traf),</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  seek_preroll_(GetSeekPreroll(*stream_info_)),</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  fragment_initialized_(false),</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  fragment_finalized_(false),</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  fragment_duration_(0),</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  earliest_presentation_time_(kInvalidTime),</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  first_sap_time_(kInvalidTime) {</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  DCHECK(stream_info_);</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  DCHECK(traf);</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> }</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> </div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> Fragmenter::~Fragmenter() {}</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> </div><div class="line"><a name="l00066"></a><span class="lineno"><a class="line" href="../../db/d95/classshaka_1_1media_1_1mp4_1_1Fragmenter.html#a993d83a58a8407d46279b3490723c5ca"> 66</a></span> <a class="code" href="../../d2/d20/classshaka_1_1Status.html">Status</a> <a class="code" href="../../db/d95/classshaka_1_1media_1_1mp4_1_1Fragmenter.html#a993d83a58a8407d46279b3490723c5ca">Fragmenter::AddSample</a>(<span class="keyword">const</span> <a class="code" href="../../d7/d6d/classshaka_1_1media_1_1MediaSample.html">MediaSample</a>& sample) {</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordflow">if</span> (sample.duration() == 0) {</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  LOG(WARNING) << <span class="stringliteral">"Unexpected sample with zero duration @ dts "</span></div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  << sample.dts();</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  }</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordflow">if</span> (!fragment_initialized_) {</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <a class="code" href="../../d2/d20/classshaka_1_1Status.html">Status</a> status = <a class="code" href="../../db/d95/classshaka_1_1media_1_1mp4_1_1Fragmenter.html#aa702c2af5ea5096d94f2943076a21e4a">InitializeFragment</a>(sample.dts());</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordflow">if</span> (!status.ok())</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordflow">return</span> status;</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  }</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> </div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keywordflow">if</span> (sample.side_data_size() > 0)</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  LOG(WARNING) << <span class="stringliteral">"MP4 samples do not support side data. Side data ignored."</span>;</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="comment">// Fill in sample parameters. It will be optimized later.</span></div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  traf_->runs[0].sample_sizes.push_back(</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  static_cast<uint32_t>(sample.data_size()));</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  traf_->runs[0].sample_durations.push_back(sample.duration());</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  traf_->runs[0].sample_flags.push_back(</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  sample.is_key_frame() ? 0 : TrackFragmentHeader::kNonKeySampleMask);</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> </div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">if</span> (sample.decrypt_config()) {</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  NewSampleEncryptionEntry(</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  *sample.decrypt_config(),</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  !stream_info_->encryption_config().constant_iv.empty(), traf_);</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  }</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span> </div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordflow">if</span> (stream_info_->stream_type() == StreamType::kStreamVideo &&</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  sample.is_key_frame()) {</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  key_frame_infos_.push_back({<span class="keyword">static_cast<</span>uint64_t<span class="keyword">></span>(sample.pts()),</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  data_->Size(), sample.data_size()});</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  }</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  data_->AppendArray(sample.data(), sample.data_size());</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  fragment_duration_ += sample.duration();</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span> </div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keyword">const</span> int64_t pts = sample.pts();</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keyword">const</span> int64_t dts = sample.dts();</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span> </div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keyword">const</span> int64_t timestamp = use_decoding_timestamp_in_timeline_ ? dts : pts;</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="comment">// Set |earliest_presentation_time_| to |timestamp| if |timestamp| is smaller</span></div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="comment">// or if it is not yet initialized (kInvalidTime > timestamp is always true).</span></div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keywordflow">if</span> (earliest_presentation_time_ > timestamp)</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  earliest_presentation_time_ = timestamp;</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span> </div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  traf_->runs[0].sample_composition_time_offsets.push_back(pts - dts);</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keywordflow">if</span> (pts != dts)</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  traf_->runs[0].flags |= TrackFragmentRun::kSampleCompTimeOffsetsPresentMask;</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span> </div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordflow">if</span> (sample.is_key_frame()) {</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keywordflow">if</span> (first_sap_time_ == kInvalidTime)</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  first_sap_time_ = pts;</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  }</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordflow">return</span> Status::OK;</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span> }</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span> </div><div class="line"><a name="l00123"></a><span class="lineno"><a class="line" href="../../db/d95/classshaka_1_1media_1_1mp4_1_1Fragmenter.html#aa702c2af5ea5096d94f2943076a21e4a"> 123</a></span> <a class="code" href="../../d2/d20/classshaka_1_1Status.html">Status</a> <a class="code" href="../../db/d95/classshaka_1_1media_1_1mp4_1_1Fragmenter.html#aa702c2af5ea5096d94f2943076a21e4a">Fragmenter::InitializeFragment</a>(int64_t first_sample_dts) {</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  fragment_initialized_ = <span class="keyword">true</span>;</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  fragment_finalized_ = <span class="keyword">false</span>;</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  traf_->decode_time.decode_time = first_sample_dts;</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  traf_->runs.clear();</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  traf_->runs.resize(1);</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  traf_->runs[0].flags = TrackFragmentRun::kDataOffsetPresentMask;</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  traf_->auxiliary_size.sample_info_sizes.clear();</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  traf_->auxiliary_offset.offsets.clear();</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  traf_->sample_encryption.sample_encryption_entries.clear();</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  traf_->sample_group_descriptions.clear();</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  traf_->sample_to_groups.clear();</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  traf_->header.sample_description_index = 1; <span class="comment">// 1-based.</span></div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  traf_->header.flags = TrackFragmentHeader::kDefaultBaseIsMoofMask |</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  TrackFragmentHeader::kSampleDescriptionIndexPresentMask;</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span> </div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  fragment_duration_ = 0;</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  earliest_presentation_time_ = kInvalidTime;</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  first_sap_time_ = kInvalidTime;</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  data_.reset(<span class="keyword">new</span> <a class="code" href="../../dc/d41/classshaka_1_1media_1_1BufferWriter.html">BufferWriter</a>());</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  key_frame_infos_.clear();</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keywordflow">return</span> Status::OK;</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span> }</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span> </div><div class="line"><a name="l00147"></a><span class="lineno"><a class="line" href="../../db/d95/classshaka_1_1media_1_1mp4_1_1Fragmenter.html#ae943e13eb86d54cffb7174d4513e4541"> 147</a></span> <a class="code" href="../../d2/d20/classshaka_1_1Status.html">Status</a> <a class="code" href="../../db/d95/classshaka_1_1media_1_1mp4_1_1Fragmenter.html#ae943e13eb86d54cffb7174d4513e4541">Fragmenter::FinalizeFragment</a>() {</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordflow">if</span> (stream_info_->is_encrypted()) {</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <a class="code" href="../../d2/d20/classshaka_1_1Status.html">Status</a> status = FinalizeFragmentForEncryption();</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keywordflow">if</span> (!status.ok())</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keywordflow">return</span> status;</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  }</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span> </div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordflow">if</span> (first_fragment_) {</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keywordflow">if</span> (allow_adjust_earliest_presentation_time_) {</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="comment">// Chrome (as of v66 https://crbug.com/398141) does not like negative</span></div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="comment">// values for adjusted dts = dts + Period@start (0 for first Period)</span></div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="comment">// - presentationTimeOffset</span></div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="comment">// Since |earliest_presentation_time| of the first fragment will be used</span></div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="comment">// to set presentationTimeOffset, the adjusted dts can become negative for</span></div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="comment">// the frames in the first segment in the first Period. To avoid seeing</span></div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="comment">// that, |earliest_presentation_time| is adjusted so it is not larger than</span></div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="comment">// the dts.</span></div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keyword">const</span> int64_t dts = traf_->decode_time.decode_time;</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="keywordflow">if</span> (earliest_presentation_time_ > dts) {</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keyword">const</span> uint64_t delta = earliest_presentation_time_ - dts;</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  earliest_presentation_time_ = dts;</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  fragment_duration_ += delta;</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  }</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  }</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  first_fragment_ = <span class="keyword">false</span>;</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  }</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span> </div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="comment">// Optimize trun box.</span></div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  traf_->runs[0].sample_count =</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keyword">static_cast<</span>uint32_t<span class="keyword">></span>(traf_->runs[0].sample_sizes.size());</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="keywordflow">if</span> (<a class="code" href="../../db/d95/classshaka_1_1media_1_1mp4_1_1Fragmenter.html#a208b7b8dd83e73c4206469695a3216d4">OptimizeSampleEntries</a>(&traf_->runs[0].sample_durations,</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  &traf_->header.default_sample_duration)) {</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  traf_->header.flags |=</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  TrackFragmentHeader::kDefaultSampleDurationPresentMask;</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  traf_->runs[0].flags |= TrackFragmentRun::kSampleDurationPresentMask;</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  }</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="keywordflow">if</span> (<a class="code" href="../../db/d95/classshaka_1_1media_1_1mp4_1_1Fragmenter.html#a208b7b8dd83e73c4206469695a3216d4">OptimizeSampleEntries</a>(&traf_->runs[0].sample_sizes,</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  &traf_->header.default_sample_size)) {</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  traf_->header.flags |= TrackFragmentHeader::kDefaultSampleSizePresentMask;</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  traf_->runs[0].flags |= TrackFragmentRun::kSampleSizePresentMask;</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  }</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordflow">if</span> (<a class="code" href="../../db/d95/classshaka_1_1media_1_1mp4_1_1Fragmenter.html#a208b7b8dd83e73c4206469695a3216d4">OptimizeSampleEntries</a>(&traf_->runs[0].sample_flags,</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  &traf_->header.default_sample_flags)) {</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  traf_->header.flags |= TrackFragmentHeader::kDefaultSampleFlagsPresentMask;</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  traf_->runs[0].flags |= TrackFragmentRun::kSampleFlagsPresentMask;</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</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="comment">// Add SampleToGroup boxes. A SampleToGroup box with grouping type of 'roll'</span></div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="comment">// needs to be added if there is seek preroll, referencing sample group</span></div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="comment">// description in track level; Also need to add SampleToGroup boxes</span></div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="comment">// correponding to every SampleGroupDescription boxes, referencing sample</span></div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="comment">// group description in fragment level.</span></div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  DCHECK_EQ(traf_->sample_to_groups.size(), 0u);</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keywordflow">if</span> (seek_preroll_ > 0) {</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  traf_->sample_to_groups.resize(traf_->sample_to_groups.size() + 1);</div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <a class="code" href="../../d0/d7c/structshaka_1_1media_1_1mp4_1_1SampleToGroup.html">SampleToGroup</a>& sample_to_group = traf_->sample_to_groups.back();</div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  sample_to_group.grouping_type = FOURCC_roll;</div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span> </div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  sample_to_group.entries.resize(1);</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <a class="code" href="../../d7/de0/structshaka_1_1media_1_1mp4_1_1SampleToGroupEntry.html">SampleToGroupEntry</a>& sample_to_group_entry = sample_to_group.entries.back();</div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  sample_to_group_entry.sample_count = traf_->runs[0].sample_count;</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  sample_to_group_entry.group_description_index =</div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  SampleToGroupEntry::kTrackGroupDescriptionIndexBase + 1;</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  }</div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>& sample_group_description :</div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  traf_->sample_group_descriptions) {</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  traf_->sample_to_groups.resize(traf_->sample_to_groups.size() + 1);</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <a class="code" href="../../d0/d7c/structshaka_1_1media_1_1mp4_1_1SampleToGroup.html">SampleToGroup</a>& sample_to_group = traf_->sample_to_groups.back();</div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  sample_to_group.grouping_type = sample_group_description.grouping_type;</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span> </div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  sample_to_group.entries.resize(1);</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <a class="code" href="../../d7/de0/structshaka_1_1media_1_1mp4_1_1SampleToGroupEntry.html">SampleToGroupEntry</a>& sample_to_group_entry = sample_to_group.entries.back();</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  sample_to_group_entry.sample_count = traf_->runs[0].sample_count;</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  sample_to_group_entry.group_description_index =</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  SampleToGroupEntry::kTrackFragmentGroupDescriptionIndexBase + 1;</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> </div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  fragment_finalized_ = <span class="keyword">true</span>;</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  fragment_initialized_ = <span class="keyword">false</span>;</div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="keywordflow">return</span> Status::OK;</div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span> }</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span> </div><div class="line"><a name="l00232"></a><span class="lineno"><a class="line" href="../../db/d95/classshaka_1_1media_1_1mp4_1_1Fragmenter.html#abbce724853d98b2ae1f92b504a24ce54"> 232</a></span> <span class="keywordtype">void</span> <a class="code" href="../../db/d95/classshaka_1_1media_1_1mp4_1_1Fragmenter.html#abbce724853d98b2ae1f92b504a24ce54">Fragmenter::GenerateSegmentReference</a>(<a class="code" href="../../dd/d9b/structshaka_1_1media_1_1mp4_1_1SegmentReference.html">SegmentReference</a>* reference)<span class="keyword"> const </span>{</div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="comment">// NOTE: Daisy chain is not supported currently.</span></div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  reference->reference_type = <span class="keyword">false</span>;</div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  reference->subsegment_duration = fragment_duration_;</div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  reference->starts_with_sap = StartsWithSAP();</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="keywordflow">if</span> (kInvalidTime == first_sap_time_) {</div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  reference->sap_type = SegmentReference::TypeUnknown;</div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  reference->sap_delta_time = 0;</div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  reference->sap_type = SegmentReference::Type1;</div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  reference->sap_delta_time = first_sap_time_ - earliest_presentation_time_;</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>  reference->earliest_presentation_time = earliest_presentation_time_;</div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span> }</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span> </div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span> <a class="code" href="../../d2/d20/classshaka_1_1Status.html">Status</a> Fragmenter::FinalizeFragmentForEncryption() {</div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <a class="code" href="../../d4/dad/structshaka_1_1media_1_1mp4_1_1SampleEncryption.html">SampleEncryption</a>& sample_encryption = traf_->sample_encryption;</div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <span class="keywordflow">if</span> (sample_encryption.sample_encryption_entries.empty()) {</div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="comment">// This fragment is not encrypted.</span></div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="comment">// There are two sample description entries, an encrypted entry and a clear</span></div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <span class="comment">// entry, are generated. The 1-based clear entry index is always 2.</span></div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <span class="keyword">const</span> uint32_t kClearSampleDescriptionIndex = 2;</div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  traf_->header.sample_description_index = kClearSampleDescriptionIndex;</div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="keywordflow">return</span> Status::OK;</div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  }</div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  <span class="keywordflow">if</span> (sample_encryption.sample_encryption_entries.size() !=</div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  traf_->runs[0].sample_sizes.size()) {</div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  LOG(ERROR) << <span class="stringliteral">"Partially encrypted segment is not supported"</span>;</div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  <span class="keywordflow">return</span> <a class="code" href="../../d2/d20/classshaka_1_1Status.html">Status</a>(error::MUXER_FAILURE,</div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="stringliteral">"Partially encrypted segment is not supported."</span>);</div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  }</div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span> </div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  <span class="keyword">const</span> <a class="code" href="../../d6/dcb/structshaka_1_1media_1_1mp4_1_1SampleEncryptionEntry.html">SampleEncryptionEntry</a>& sample_encryption_entry =</div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  sample_encryption.sample_encryption_entries.front();</div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> use_subsample_encryption =</div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  !sample_encryption_entry.subsamples.empty();</div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  <span class="keywordflow">if</span> (use_subsample_encryption)</div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  traf_->sample_encryption.flags |= SampleEncryption::kUseSubsampleEncryption;</div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  traf_->sample_encryption.iv_size = <span class="keyword">static_cast<</span>uint8_t<span class="keyword">></span>(</div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  sample_encryption_entry.initialization_vector.size());</div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span> </div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  <span class="comment">// The offset will be adjusted in Segmenter after knowing moof size.</span></div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  traf_->auxiliary_offset.offsets.push_back(0);</div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span> </div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  <span class="comment">// Optimize saiz box.</span></div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  <a class="code" href="../../dd/d13/structshaka_1_1media_1_1mp4_1_1SampleAuxiliaryInformationSize.html">SampleAuxiliaryInformationSize</a>& saiz = traf_->auxiliary_size;</div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  saiz.sample_count = <span class="keyword">static_cast<</span>uint32_t<span class="keyword">></span>(saiz.sample_info_sizes.size());</div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  DCHECK_EQ(saiz.sample_info_sizes.size(),</div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  traf_->sample_encryption.sample_encryption_entries.size());</div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  <span class="keywordflow">if</span> (!<a class="code" href="../../db/d95/classshaka_1_1media_1_1mp4_1_1Fragmenter.html#a208b7b8dd83e73c4206469695a3216d4">OptimizeSampleEntries</a>(&saiz.sample_info_sizes,</div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  &saiz.default_sample_info_size)) {</div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  saiz.default_sample_info_size = 0;</div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  }</div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span> </div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  <span class="comment">// It should only happen with full sample encryption + constant iv, i.e.</span></div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <span class="comment">// 'cbcs' applying to audio.</span></div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  <span class="keywordflow">if</span> (saiz.default_sample_info_size == 0 && saiz.sample_info_sizes.empty()) {</div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  DCHECK(!use_subsample_encryption);</div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="comment">// ISO/IEC 23001-7:2016(E) The sample auxiliary information would then be</span></div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <span class="comment">// empty and should be omitted. Clear saiz and saio boxes so they are not</span></div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <span class="comment">// written.</span></div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  saiz.sample_count = 0;</div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  traf_->auxiliary_offset.offsets.clear();</div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  }</div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  <span class="keywordflow">return</span> Status::OK;</div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span> }</div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span> </div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span> <span class="keywordtype">bool</span> Fragmenter::StartsWithSAP()<span class="keyword"> const </span>{</div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  DCHECK(!traf_->runs.empty());</div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  uint32_t start_sample_flag;</div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  <span class="keywordflow">if</span> (traf_->runs[0].flags & TrackFragmentRun::kSampleFlagsPresentMask) {</div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  DCHECK(!traf_->runs[0].sample_flags.empty());</div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  start_sample_flag = traf_->runs[0].sample_flags[0];</div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  DCHECK(traf_->header.flags &</div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  TrackFragmentHeader::kDefaultSampleFlagsPresentMask);</div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  start_sample_flag = traf_->header.default_sample_flags;</div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  }</div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  <span class="keywordflow">return</span> (start_sample_flag & TrackFragmentHeader::kNonKeySampleMask) == 0;</div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span> }</div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span> </div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span> } <span class="comment">// namespace mp4</span></div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span> } <span class="comment">// namespace media</span></div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span> } <span class="comment">// namespace shaka</span></div><div class="ttc" id="structshaka_1_1media_1_1mp4_1_1SampleToGroupEntry_html"><div class="ttname"><a href="../../d7/de0/structshaka_1_1media_1_1mp4_1_1SampleToGroupEntry.html">shaka::media::mp4::SampleToGroupEntry</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d7b/box__definitions_8h_source.html#l00525">box_definitions.h:525</a></div></div>
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<div class="ttc" id="structshaka_1_1media_1_1mp4_1_1SegmentReference_html"><div class="ttname"><a href="../../dd/d9b/structshaka_1_1media_1_1mp4_1_1SegmentReference.html">shaka::media::mp4::SegmentReference</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d7b/box__definitions_8h_source.html#l00753">box_definitions.h:753</a></div></div>
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<div class="ttc" id="structshaka_1_1media_1_1mp4_1_1TrackFragment_html"><div class="ttname"><a href="../../df/d7b/structshaka_1_1media_1_1mp4_1_1TrackFragment.html">shaka::media::mp4::TrackFragment</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d7b/box__definitions_8h_source.html#l00731">box_definitions.h:731</a></div></div>
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<div class="ttc" id="namespacestd_html"><div class="ttname"><a href="../../d8/dcc/namespacestd.html">std</a></div><div class="ttdoc">STL namespace. </div></div>
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<div class="ttc" id="namespaceshaka_html"><div class="ttname"><a href="../../d8/daf/namespaceshaka.html">shaka</a></div><div class="ttdoc">All the methods that are virtual are virtual for mocking. </div><div class="ttdef"><b>Definition:</b> <a href="../../d4/d15/gflags__hex__bytes_8cc_source.html#l00011">gflags_hex_bytes.cc:11</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1Fragmenter_html_aa702c2af5ea5096d94f2943076a21e4a"><div class="ttname"><a href="../../db/d95/classshaka_1_1media_1_1mp4_1_1Fragmenter.html#aa702c2af5ea5096d94f2943076a21e4a">shaka::media::mp4::Fragmenter::InitializeFragment</a></div><div class="ttdeci">Status InitializeFragment(int64_t first_sample_dts)</div><div class="ttdef"><b>Definition:</b> <a href="../../d8/d9a/fragmenter_8cc_source.html#l00123">fragmenter.cc:123</a></div></div>
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<div class="ttc" id="classshaka_1_1Status_html"><div class="ttname"><a href="../../d2/d20/classshaka_1_1Status.html">shaka::Status</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d1/d13/status_8h_source.html#l00110">status.h:110</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1Fragmenter_html_abbce724853d98b2ae1f92b504a24ce54"><div class="ttname"><a href="../../db/d95/classshaka_1_1media_1_1mp4_1_1Fragmenter.html#abbce724853d98b2ae1f92b504a24ce54">shaka::media::mp4::Fragmenter::GenerateSegmentReference</a></div><div class="ttdeci">void GenerateSegmentReference(SegmentReference *reference) const</div><div class="ttdoc">Fill reference with current fragment information. </div><div class="ttdef"><b>Definition:</b> <a href="../../d8/d9a/fragmenter_8cc_source.html#l00232">fragmenter.cc:232</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1BufferWriter_html"><div class="ttname"><a href="../../dc/d41/classshaka_1_1media_1_1BufferWriter.html">shaka::media::BufferWriter</a></div><div class="ttdef"><b>Definition:</b> <a href="../../dd/dd2/buffer__writer_8h_source.html#l00023">buffer_writer.h:23</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1Fragmenter_html_a9ce106b464eba1449408ea74dc0e0628"><div class="ttname"><a href="../../db/d95/classshaka_1_1media_1_1mp4_1_1Fragmenter.html#a9ce106b464eba1449408ea74dc0e0628">shaka::media::mp4::Fragmenter::Fragmenter</a></div><div class="ttdeci">Fragmenter(std::shared_ptr< const StreamInfo > info, TrackFragment *traf)</div><div class="ttdef"><b>Definition:</b> <a href="../../d8/d9a/fragmenter_8cc_source.html#l00049">fragmenter.cc:49</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1Fragmenter_html_a993d83a58a8407d46279b3490723c5ca"><div class="ttname"><a href="../../db/d95/classshaka_1_1media_1_1mp4_1_1Fragmenter.html#a993d83a58a8407d46279b3490723c5ca">shaka::media::mp4::Fragmenter::AddSample</a></div><div class="ttdeci">Status AddSample(const MediaSample &sample)</div><div class="ttdef"><b>Definition:</b> <a href="../../d8/d9a/fragmenter_8cc_source.html#l00066">fragmenter.cc:66</a></div></div>
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<div class="ttc" id="structshaka_1_1media_1_1mp4_1_1SampleEncryptionEntry_html"><div class="ttname"><a href="../../d6/dcb/structshaka_1_1media_1_1mp4_1_1SampleEncryptionEntry.html">shaka::media::mp4::SampleEncryptionEntry</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d7b/box__definitions_8h_source.html#l00078">box_definitions.h:78</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1MediaSample_html"><div class="ttname"><a href="../../d7/d6d/classshaka_1_1media_1_1MediaSample.html">shaka::media::MediaSample</a></div><div class="ttdoc">Class to hold a media sample. </div><div class="ttdef"><b>Definition:</b> <a href="../../dd/d80/media__sample_8h_source.html#l00022">media_sample.h:22</a></div></div>
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<div class="ttc" id="structshaka_1_1media_1_1mp4_1_1SampleAuxiliaryInformationSize_html"><div class="ttname"><a href="../../dd/d13/structshaka_1_1media_1_1mp4_1_1SampleAuxiliaryInformationSize.html">shaka::media::mp4::SampleAuxiliaryInformationSize</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d7b/box__definitions_8h_source.html#l00070">box_definitions.h:70</a></div></div>
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<div class="ttc" id="structshaka_1_1media_1_1mp4_1_1SampleToGroup_html"><div class="ttname"><a href="../../d0/d7c/structshaka_1_1media_1_1mp4_1_1SampleToGroup.html">shaka::media::mp4::SampleToGroup</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d7b/box__definitions_8h_source.html#l00535">box_definitions.h:535</a></div></div>
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<div class="ttc" id="structshaka_1_1media_1_1mp4_1_1SampleEncryption_html"><div class="ttname"><a href="../../d4/dad/structshaka_1_1media_1_1mp4_1_1SampleEncryption.html">shaka::media::mp4::SampleEncryption</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d7b/box__definitions_8h_source.html#l00105">box_definitions.h:105</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1Fragmenter_html_ae943e13eb86d54cffb7174d4513e4541"><div class="ttname"><a href="../../db/d95/classshaka_1_1media_1_1mp4_1_1Fragmenter.html#ae943e13eb86d54cffb7174d4513e4541">shaka::media::mp4::Fragmenter::FinalizeFragment</a></div><div class="ttdeci">Status FinalizeFragment()</div><div class="ttdoc">Finalize and optimize the fragment. </div><div class="ttdef"><b>Definition:</b> <a href="../../d8/d9a/fragmenter_8cc_source.html#l00147">fragmenter.cc:147</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1Fragmenter_html_a208b7b8dd83e73c4206469695a3216d4"><div class="ttname"><a href="../../db/d95/classshaka_1_1media_1_1mp4_1_1Fragmenter.html#a208b7b8dd83e73c4206469695a3216d4">shaka::media::mp4::Fragmenter::OptimizeSampleEntries</a></div><div class="ttdeci">bool OptimizeSampleEntries(std::vector< T > *entries, T *default_value)</div><div class="ttdef"><b>Definition:</b> <a href="../../da/dd1/fragmenter_8h_source.html#l00121">fragmenter.h:121</a></div></div>
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