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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/mp4_muxer.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> </div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include "packager/base/time/clock.h"</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include "packager/base/time/time.h"</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include "packager/file/file.h"</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "packager/media/base/aes_encryptor.h"</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include "packager/media/base/audio_stream_info.h"</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include "packager/media/base/fourccs.h"</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include "packager/media/base/key_source.h"</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include "packager/media/base/media_sample.h"</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include "packager/media/base/text_stream_info.h"</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include "packager/media/base/video_stream_info.h"</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include "packager/media/codecs/es_descriptor.h"</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include "packager/media/event/muxer_listener.h"</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include "packager/media/formats/mp4/box_definitions.h"</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include "packager/media/formats/mp4/multi_segment_segmenter.h"</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include "packager/media/formats/mp4/single_segment_segmenter.h"</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include "packager/status_macros.h"</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="keyword">namespace </span><a class="code" href="../../d8/daf/namespaceshaka.html">shaka</a> {</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="keyword">namespace </span>media {</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">namespace </span>mp4 {</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> <span class="keyword">namespace </span>{</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment">// Sets the range start and end value from offset and size.</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment">// |start| and |end| are for byte-range-spec specified in RFC2616.</span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="keywordtype">void</span> SetStartAndEndFromOffsetAndSize(<span class="keywordtype">size_t</span> offset,</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keywordtype">size_t</span> size,</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  Range* range) {</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  DCHECK(range);</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  range->start = <span class="keyword">static_cast<</span>uint32_t<span class="keyword">></span>(offset);</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="comment">// Note that ranges are inclusive. So we need - 1.</span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  range->end = range->start + <span class="keyword">static_cast<</span>uint32_t<span class="keyword">></span>(size) - 1;</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> }</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> FourCC CodecToFourCC(Codec codec, H26xStreamFormat h26x_stream_format) {</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordflow">switch</span> (codec) {</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordflow">case</span> kCodecAV1:</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordflow">return</span> FOURCC_av01;</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordflow">case</span> kCodecH264:</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keywordflow">return</span> h26x_stream_format ==</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  H26xStreamFormat::kNalUnitStreamWithParameterSetNalus</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  ? FOURCC_avc3</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  : FOURCC_avc1;</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordflow">case</span> kCodecH265:</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordflow">return</span> h26x_stream_format ==</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  H26xStreamFormat::kNalUnitStreamWithParameterSetNalus</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  ? FOURCC_hev1</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  : FOURCC_hvc1;</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordflow">case</span> kCodecVP8:</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keywordflow">return</span> FOURCC_vp08;</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordflow">case</span> kCodecVP9:</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordflow">return</span> FOURCC_vp09;</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordflow">case</span> kCodecAAC:</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keywordflow">return</span> FOURCC_mp4a;</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">case</span> kCodecAC3:</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordflow">return</span> FOURCC_ac_3;</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordflow">case</span> kCodecDTSC:</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordflow">return</span> FOURCC_dtsc;</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordflow">case</span> kCodecDTSH:</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordflow">return</span> FOURCC_dtsh;</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordflow">case</span> kCodecDTSL:</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordflow">return</span> FOURCC_dtsl;</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordflow">case</span> kCodecDTSE:</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordflow">return</span> FOURCC_dtse;</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordflow">case</span> kCodecDTSM:</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordflow">return</span> FOURCC_dtsm;</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordflow">case</span> kCodecEAC3:</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keywordflow">return</span> FOURCC_ec_3;</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keywordflow">case</span> kCodecFlac:</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keywordflow">return</span> FOURCC_fLaC;</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keywordflow">case</span> kCodecOpus:</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keywordflow">return</span> FOURCC_Opus;</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordflow">default</span>:</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordflow">return</span> FOURCC_NULL;</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  }</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> }</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="keywordtype">void</span> GenerateSinf(FourCC old_type,</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keyword">const</span> EncryptionConfig& encryption_config,</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  ProtectionSchemeInfo* sinf) {</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  sinf->format.format = old_type;</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>  DCHECK_NE(encryption_config.protection_scheme, FOURCC_NULL);</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  sinf->type.type = encryption_config.protection_scheme;</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="comment">// The version of cenc implemented here. CENC 4.</span></div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> kCencSchemeVersion = 0x00010000;</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  sinf->type.version = kCencSchemeVersion;</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>  <span class="keyword">auto</span>& track_encryption = sinf->info.track_encryption;</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  track_encryption.default_is_protected = 1;</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>  track_encryption.default_crypt_byte_block =</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  encryption_config.crypt_byte_block;</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  track_encryption.default_skip_byte_block = encryption_config.skip_byte_block;</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordflow">switch</span> (encryption_config.protection_scheme) {</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordflow">case</span> FOURCC_cenc:</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordflow">case</span> FOURCC_cbc1:</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  DCHECK_EQ(track_encryption.default_crypt_byte_block, 0u);</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  DCHECK_EQ(track_encryption.default_skip_byte_block, 0u);</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="comment">// CENCv3 10.1 ‘cenc’ AES-CTR scheme and 10.2 ‘cbc1’ AES-CBC scheme:</span></div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="comment">// The version of the Track Encryption Box (‘tenc’) SHALL be 0.</span></div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  track_encryption.version = 0;</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keywordflow">case</span> FOURCC_cbcs:</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordflow">case</span> FOURCC_cens:</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="comment">// CENCv3 10.3 ‘cens’ AES-CTR subsample pattern encryption scheme and</span></div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="comment">// 10.4 ‘cbcs’ AES-CBC subsample pattern encryption scheme:</span></div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="comment">// The version of the Track Encryption Box (‘tenc’) SHALL be 1.</span></div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  track_encryption.version = 1;</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keywordflow">default</span>:</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  NOTREACHED() << <span class="stringliteral">"Unexpected protection scheme "</span></div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  << encryption_config.protection_scheme;</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  }</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> </div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  track_encryption.default_per_sample_iv_size =</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  encryption_config.per_sample_iv_size;</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  track_encryption.default_constant_iv = encryption_config.constant_iv;</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  track_encryption.default_kid = encryption_config.key_id;</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span> }</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span> </div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span> <span class="comment">// The roll distance is expressed in sample units and always takes negative</span></div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span> <span class="comment">// values.</span></div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span> int16_t GetRollDistance(uint64_t seek_preroll_ns, uint32_t sampling_frequency) {</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> kNanosecondsPerSecond = 1000000000;</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> preroll_in_samples =</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  seek_preroll_ns / kNanosecondsPerSecond * sampling_frequency;</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="comment">// Round to closest integer.</span></div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keywordflow">return</span> -<span class="keyword">static_cast<</span>int16_t<span class="keyword">></span>(preroll_in_samples + 0.5);</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span> }</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span> </div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span> } <span class="comment">// namespace</span></div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span> </div><div class="line"><a name="l00145"></a><span class="lineno"><a class="line" href="../../db/d30/classshaka_1_1media_1_1mp4_1_1MP4Muxer.html#a5b6a878865250e3e17268c011a361497"> 145</a></span> <a class="code" href="../../db/d30/classshaka_1_1media_1_1mp4_1_1MP4Muxer.html#a5b6a878865250e3e17268c011a361497">MP4Muxer::MP4Muxer</a>(<span class="keyword">const</span> <a class="code" href="../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html">MuxerOptions</a>& options) : <a class="code" href="../../df/d46/classshaka_1_1media_1_1Muxer.html">Muxer</a>(options) {}</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span> MP4Muxer::~MP4Muxer() {}</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span> </div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span> <a class="code" href="../../d2/d20/classshaka_1_1Status.html">Status</a> MP4Muxer::InitializeMuxer() {</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="comment">// Muxer will be delay-initialized after seeing the first sample.</span></div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  to_be_initialized_ = <span class="keyword">true</span>;</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keywordflow">return</span> Status::OK;</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> <a class="code" href="../../d2/d20/classshaka_1_1Status.html">Status</a> MP4Muxer::Finalize() {</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="comment">// This happens on streams that are not initialized, i.e. not going through</span></div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="comment">// DelayInitializeMuxer, which can only happen if there are no samples from</span></div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="comment">// the stream.</span></div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordflow">if</span> (!segmenter_) {</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  DCHECK(to_be_initialized_);</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  LOG(INFO) << <span class="stringliteral">"Skip stream '"</span> << options().<a class="code" href="../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html#a5397ee8759a663aea68261600e528d82">output_file_name</a></div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  << <span class="stringliteral">"' which does not contain any sample."</span>;</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordflow">return</span> Status::OK;</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  }</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span> </div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <a class="code" href="../../d2/d20/classshaka_1_1Status.html">Status</a> segmenter_finalized = segmenter_->Finalize();</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span> </div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keywordflow">if</span> (!segmenter_finalized.ok())</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordflow">return</span> segmenter_finalized;</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>  FireOnMediaEndEvent();</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  LOG(INFO) << <span class="stringliteral">"MP4 file '"</span> << options().<a class="code" href="../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html#a5397ee8759a663aea68261600e528d82">output_file_name</a> << <span class="stringliteral">"' finalized."</span>;</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keywordflow">return</span> Status::OK;</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> </div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span> <a class="code" href="../../d2/d20/classshaka_1_1Status.html">Status</a> MP4Muxer::AddSample(<span class="keywordtype">size_t</span> stream_id, <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="l00176"></a><span class="lineno"> 176</span>  <span class="keywordflow">if</span> (to_be_initialized_) {</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  RETURN_IF_ERROR(UpdateEditListOffsetFromSample(sample));</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  RETURN_IF_ERROR(DelayInitializeMuxer());</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  to_be_initialized_ = <span class="keyword">false</span>;</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  }</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  DCHECK(segmenter_);</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keywordflow">return</span> segmenter_->AddSample(stream_id, sample);</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> </div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span> <a class="code" href="../../d2/d20/classshaka_1_1Status.html">Status</a> MP4Muxer::FinalizeSegment(<span class="keywordtype">size_t</span> stream_id,</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keyword">const</span> <a class="code" href="../../d0/dc0/structshaka_1_1media_1_1SegmentInfo.html">SegmentInfo</a>& segment_info) {</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  DCHECK(segmenter_);</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  VLOG(3) << <span class="stringliteral">"Finalizing "</span> << (segment_info.is_subsegment ? <span class="stringliteral">"sub"</span> : <span class="stringliteral">""</span>)</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  << <span class="stringliteral">"segment "</span> << segment_info.start_timestamp << <span class="stringliteral">" duration "</span></div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  << segment_info.duration;</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="keywordflow">return</span> segmenter_->FinalizeSegment(stream_id, segment_info);</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span> }</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span> </div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span> <a class="code" href="../../d2/d20/classshaka_1_1Status.html">Status</a> MP4Muxer::DelayInitializeMuxer() {</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  DCHECK(!streams().empty());</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>  std::unique_ptr<FileType> ftyp(<span class="keyword">new</span> <a class="code" href="../../d5/d03/structshaka_1_1media_1_1mp4_1_1FileType.html">FileType</a>);</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  std::unique_ptr<Movie> moov(<span class="keyword">new</span> <a class="code" href="../../d0/d9a/structshaka_1_1media_1_1mp4_1_1Movie.html">Movie</a>);</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span> </div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  ftyp->major_brand = FOURCC_isom;</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  ftyp->compatible_brands.push_back(FOURCC_iso8);</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  ftyp->compatible_brands.push_back(FOURCC_mp41);</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  ftyp->compatible_brands.push_back(FOURCC_dash);</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span> </div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keywordflow">if</span> (streams().size() == 1) {</div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  FourCC codec_fourcc = FOURCC_NULL;</div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="keywordflow">if</span> (streams()[0]->stream_type() == kStreamVideo) {</div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  codec_fourcc =</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  CodecToFourCC(streams()[0]->codec(),</div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  static_cast<const VideoStreamInfo*>(streams()[0].<span class="keyword">get</span>())</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  ->h26x_stream_format());</div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordflow">if</span> (codec_fourcc != FOURCC_NULL)</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  ftyp->compatible_brands.push_back(codec_fourcc);</div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  }</div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span> </div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  <span class="comment">// CMAF allows only one track/stream per file.</span></div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="comment">// CMAF requires single initialization switching for AVC3/HEV1, which is not</span></div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="comment">// supported yet.</span></div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="keywordflow">if</span> (codec_fourcc != FOURCC_avc3 && codec_fourcc != FOURCC_hev1)</div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  ftyp->compatible_brands.push_back(FOURCC_cmfc);</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> </div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  moov->header.creation_time = IsoTimeNow();</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  moov->header.modification_time = IsoTimeNow();</div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  moov->header.next_track_id = <span class="keyword">static_cast<</span>uint32_t<span class="keyword">></span>(streams().size()) + 1;</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>  moov->tracks.resize(streams().size());</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  moov->extends.tracks.resize(streams().size());</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="comment">// Initialize tracks.</span></div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="keywordflow">for</span> (uint32_t i = 0; i < streams().size(); ++i) {</div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="keyword">const</span> <a class="code" href="../../d5/db1/classshaka_1_1media_1_1StreamInfo.html">StreamInfo</a>* stream = streams()[i].get();</div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <a class="code" href="../../d3/db5/structshaka_1_1media_1_1mp4_1_1Track.html">Track</a>& trak = moov->tracks[i];</div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  trak.header.track_id = i + 1;</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>  <a class="code" href="../../de/d29/structshaka_1_1media_1_1mp4_1_1TrackExtends.html">TrackExtends</a>& trex = moov->extends.tracks[i];</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  trex.track_id = trak.header.track_id;</div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  trex.default_sample_description_index = 1;</div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span> </div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="keywordtype">bool</span> generate_trak_result = <span class="keyword">false</span>;</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="keywordflow">switch</span> (stream->stream_type()) {</div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="keywordflow">case</span> kStreamVideo:</div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  generate_trak_result = GenerateVideoTrak(</div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  static_cast<const VideoStreamInfo*>(stream), &trak, i + 1);</div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="keywordflow">case</span> kStreamAudio:</div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  generate_trak_result = GenerateAudioTrak(</div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  static_cast<const AudioStreamInfo*>(stream), &trak, i + 1);</div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="keywordflow">case</span> kStreamText:</div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  generate_trak_result = GenerateTextTrak(</div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  static_cast<const TextStreamInfo*>(stream), &trak, i + 1);</div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="keywordflow">default</span>:</div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  NOTIMPLEMENTED() << <span class="stringliteral">"Not implemented for stream type: "</span></div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  << stream->stream_type();</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>  <span class="keywordflow">if</span> (!generate_trak_result)</div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <span class="keywordflow">return</span> <a class="code" href="../../d2/d20/classshaka_1_1Status.html">Status</a>(error::MUXER_FAILURE, <span class="stringliteral">"Failed to generate trak."</span>);</div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span> </div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="comment">// Generate EditList if needed. See UpdateEditListOffsetFromSample() for</span></div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <span class="comment">// more information.</span></div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  <span class="keywordflow">if</span> (edit_list_offset_.value() > 0) {</div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  <a class="code" href="../../d4/d18/structshaka_1_1media_1_1mp4_1_1EditListEntry.html">EditListEntry</a> entry;</div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  entry.media_time = edit_list_offset_.value();</div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  entry.media_rate_integer = 1;</div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  trak.edit.list.edits.push_back(entry);</div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  }</div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span> </div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="keywordflow">if</span> (stream->is_encrypted() && options().<a class="code" href="../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html#aa616f5958ea9df2d70f3fe42ff47ff43">mp4_params</a>.<a class="code" href="../../d0/d43/structshaka_1_1Mp4OutputParams.html#abdff0b6ab552e27e275d8d23cc2f60b1">include_pssh_in_stream</a>) {</div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  moov->pssh.clear();</div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  <span class="keyword">const</span> <span class="keyword">auto</span>& key_system_info = stream->encryption_config().key_system_info;</div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <a class="code" href="../../d0/d86/structshaka_1_1media_1_1ProtectionSystemSpecificInfo.html">ProtectionSystemSpecificInfo</a>& system : key_system_info) {</div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <span class="keywordflow">if</span> (system.psshs.empty())</div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  <span class="keywordflow">continue</span>;</div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  <a class="code" href="../../d0/d3c/structshaka_1_1media_1_1mp4_1_1ProtectionSystemSpecificHeader.html">ProtectionSystemSpecificHeader</a> pssh;</div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  pssh.raw_box = system.psshs;</div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  moov->pssh.push_back(pssh);</div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  }</div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  }</div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  }</div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span> </div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <span class="keywordflow">if</span> (options().segment_template.empty()) {</div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  segmenter_.reset(<span class="keyword">new</span> <a class="code" href="../../d0/dab/classshaka_1_1media_1_1mp4_1_1SingleSegmentSegmenter.html">SingleSegmentSegmenter</a>(options(), std::move(ftyp),</div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  std::move(moov)));</div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  segmenter_.reset(</div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  <span class="keyword">new</span> <a class="code" href="../../d8/db7/classshaka_1_1media_1_1mp4_1_1MultiSegmentSegmenter.html">MultiSegmentSegmenter</a>(options(), std::move(ftyp), std::move(moov)));</div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  }</div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span> </div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <span class="keyword">const</span> <a class="code" href="../../d2/d20/classshaka_1_1Status.html">Status</a> segmenter_initialized =</div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  segmenter_->Initialize(streams(), muxer_listener(), progress_listener());</div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  <span class="keywordflow">if</span> (!segmenter_initialized.ok())</div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  <span class="keywordflow">return</span> segmenter_initialized;</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>  FireOnMediaStartEvent();</div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <span class="keywordflow">return</span> Status::OK;</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> </div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span> <a class="code" href="../../d2/d20/classshaka_1_1Status.html">Status</a> MP4Muxer::UpdateEditListOffsetFromSample(<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="l00301"></a><span class="lineno"> 301</span>  <span class="keywordflow">if</span> (edit_list_offset_)</div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  <span class="keywordflow">return</span> Status::OK;</div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span> </div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  <span class="keyword">const</span> int64_t pts = sample.pts();</div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  <span class="keyword">const</span> int64_t dts = sample.dts();</div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  <span class="comment">// An EditList entry is inserted if one of the below conditions occur [4]:</span></div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  <span class="comment">// (1) pts > dts for the first sample. Due to Chrome's dts bug [1], dts is</span></div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <span class="comment">// used in buffered range API, while pts is used elsewhere (players,</span></div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <span class="comment">// manifests, and Chrome's own appendWindow check etc.), this</span></div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  <span class="comment">// inconsistency creates various problems, including possible stalls</span></div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <span class="comment">// during playback. Since Chrome adjusts pts only when seeing EditList</span></div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  <span class="comment">// [2], we can insert an EditList with the time equal to difference of pts</span></div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  <span class="comment">// and dts to make aligned buffered ranges using pts and dts. This</span></div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <span class="comment">// effectively workarounds the dts bug. It is also recommended by ISO-BMFF</span></div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="comment">// specification [3].</span></div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="comment">// (2) pts == dts and with pts < 0. This happens for some audio codecs where a</span></div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="comment">// negative presentation timestamp signals that the sample is not supposed</span></div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <span class="comment">// to be shown, i.e. for audio priming. EditList is needed to encode</span></div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="comment">// negative timestamps.</span></div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="comment">// [1] https://crbug.com/718641, fixed but behind MseBufferByPts, still not</span></div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  <span class="comment">// enabled as of M67.</span></div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <span class="comment">// [2] This is actually a bug, see https://crbug.com/354518. It looks like</span></div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="comment">// Chrome is planning to enable the fix for [1] before addressing this</span></div><div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="comment">// bug, so we are safe.</span></div><div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <span class="comment">// [3] ISO 14496-12:2015 8.6.6.1</span></div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="comment">// It is recommended that such an edit be used to establish a presentation</span></div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <span class="comment">// time of 0 for the first presented sample, when composition offsets are</span></div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  <span class="comment">// used.</span></div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  <span class="comment">// [4] ISO 23009-19:2018 7.5.13</span></div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <span class="comment">// In two cases, an EditBox containing a single EditListBox with the</span></div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <span class="comment">// following constraints may be present in the CMAF header of a CMAF track</span></div><div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  <span class="comment">// to adjust the presentation time of all media samples in the CMAF track.</span></div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <span class="comment">// a) The first case is a video CMAF track file using v0 TrackRunBoxes</span></div><div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  <span class="comment">// with positive composition offsets to reorder video media samples.</span></div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  <span class="comment">// b) The second case is an audio CMAF track where each media sample's</span></div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <span class="comment">// presentation time does not equal its composition time.</span></div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="keyword">const</span> int64_t pts_dts_offset = pts - dts;</div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  <span class="keywordflow">if</span> (pts_dts_offset > 0) {</div><div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  <span class="keywordflow">if</span> (pts < 0) {</div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  LOG(ERROR) << <span class="stringliteral">"Negative presentation timestamp ("</span> << pts</div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  << <span class="stringliteral">") is not supported when there is an offset between "</span></div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  <span class="stringliteral">"presentation timestamp and decoding timestamp ("</span></div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  << dts << <span class="stringliteral">")."</span>;</div><div class="line"><a name="l00344"></a><span class="lineno"> 344</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="l00345"></a><span class="lineno"> 345</span>  <span class="stringliteral">"Unsupported negative pts when there is an offset between "</span></div><div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  <span class="stringliteral">"pts and dts."</span>);</div><div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  }</div><div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  edit_list_offset_ = pts_dts_offset;</div><div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  <span class="keywordflow">return</span> Status::OK;</div><div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  }</div><div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  <span class="keywordflow">if</span> (pts_dts_offset < 0) {</div><div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  LOG(ERROR) << <span class="stringliteral">"presentation timestamp ("</span> << pts</div><div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  << <span class="stringliteral">") is not supposed to be greater than decoding timestamp ("</span></div><div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  << dts << <span class="stringliteral">")."</span>;</div><div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  <span class="keywordflow">return</span> <a class="code" href="../../d2/d20/classshaka_1_1Status.html">Status</a>(error::MUXER_FAILURE, <span class="stringliteral">"Not expecting pts < dts."</span>);</div><div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  }</div><div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  edit_list_offset_ = std::max(-sample.pts(), <span class="keyword">static_cast<</span>int64_t<span class="keyword">></span>(0));</div><div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  <span class="keywordflow">return</span> Status::OK;</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> </div><div class="line"><a name="l00361"></a><span class="lineno"> 361</span> <span class="keywordtype">void</span> MP4Muxer::InitializeTrak(<span class="keyword">const</span> <a class="code" href="../../d5/db1/classshaka_1_1media_1_1StreamInfo.html">StreamInfo</a>* info, <a class="code" href="../../d3/db5/structshaka_1_1media_1_1mp4_1_1Track.html">Track</a>* trak) {</div><div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  int64_t now = IsoTimeNow();</div><div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  trak->header.creation_time = now;</div><div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  trak->header.modification_time = now;</div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  trak->header.duration = 0;</div><div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  trak->media.header.creation_time = now;</div><div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  trak->media.header.modification_time = now;</div><div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  trak->media.header.timescale = info->time_scale();</div><div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  trak->media.header.duration = 0;</div><div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  <span class="keywordflow">if</span> (!info->language().empty()) {</div><div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  <span class="comment">// Strip off the subtag, if any.</span></div><div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  std::string main_language = info->language();</div><div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  <span class="keywordtype">size_t</span> dash = main_language.find(<span class="charliteral">'-'</span>);</div><div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  <span class="keywordflow">if</span> (dash != std::string::npos) {</div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  main_language.erase(dash);</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> </div><div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  <span class="comment">// ISO-639-2/T main language code should be 3 characters.</span></div><div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  <span class="keywordflow">if</span> (main_language.size() != 3) {</div><div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  LOG(WARNING) << <span class="stringliteral">"'"</span> << main_language << <span class="stringliteral">"' is not a valid ISO-639-2 "</span></div><div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  << <span class="stringliteral">"language code, ignoring."</span>;</div><div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  trak->media.header.language.code = main_language;</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>  }</div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span> }</div><div class="line"><a name="l00387"></a><span class="lineno"> 387</span> </div><div class="line"><a name="l00388"></a><span class="lineno"> 388</span> <span class="keywordtype">bool</span> MP4Muxer::GenerateVideoTrak(<span class="keyword">const</span> <a class="code" href="../../d6/db1/classshaka_1_1media_1_1VideoStreamInfo.html">VideoStreamInfo</a>* video_info,</div><div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  <a class="code" href="../../d3/db5/structshaka_1_1media_1_1mp4_1_1Track.html">Track</a>* trak,</div><div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  uint32_t track_id) {</div><div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  InitializeTrak(video_info, trak);</div><div class="line"><a name="l00392"></a><span class="lineno"> 392</span> </div><div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  <span class="comment">// width and height specify the track's visual presentation size as</span></div><div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  <span class="comment">// fixed-point 16.16 values.</span></div><div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  uint32_t pixel_width = video_info-><a class="code" href="../../d6/db1/classshaka_1_1media_1_1VideoStreamInfo.html#ac0356f4786e3cc2699c13a253c5f3cb5">pixel_width</a>();</div><div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  uint32_t pixel_height = video_info-><a class="code" href="../../d6/db1/classshaka_1_1media_1_1VideoStreamInfo.html#a40b2e26c533904ff890f4ea8086d7f71">pixel_height</a>();</div><div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  <span class="keywordflow">if</span> (pixel_width == 0 || pixel_height == 0) {</div><div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  LOG(WARNING) << <span class="stringliteral">"pixel width/height are not set. Assuming 1:1."</span>;</div><div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  pixel_width = 1;</div><div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  pixel_height = 1;</div><div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  }</div><div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> sample_aspect_ratio =</div><div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  <span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(pixel_width) / pixel_height;</div><div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  trak->header.width = video_info->width() * sample_aspect_ratio * 0x10000;</div><div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  trak->header.height = video_info->height() * 0x10000;</div><div class="line"><a name="l00406"></a><span class="lineno"> 406</span> </div><div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  <a class="code" href="../../d0/d73/structshaka_1_1media_1_1mp4_1_1VideoSampleEntry.html">VideoSampleEntry</a> video;</div><div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  video.format =</div><div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  CodecToFourCC(video_info->codec(), video_info->h26x_stream_format());</div><div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  video.width = video_info->width();</div><div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  video.height = video_info->height();</div><div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  video.codec_configuration.data = video_info->codec_config();</div><div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  <span class="keywordflow">if</span> (pixel_width != 1 || pixel_height != 1) {</div><div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  video.pixel_aspect.h_spacing = pixel_width;</div><div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  video.pixel_aspect.v_spacing = pixel_height;</div><div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  }</div><div class="line"><a name="l00417"></a><span class="lineno"> 417</span> </div><div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  <a class="code" href="../../da/df5/structshaka_1_1media_1_1mp4_1_1SampleDescription.html">SampleDescription</a>& sample_description =</div><div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  trak->media.information.sample_table.description;</div><div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  sample_description.type = kVideo;</div><div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  sample_description.video_entries.push_back(video);</div><div class="line"><a name="l00422"></a><span class="lineno"> 422</span> </div><div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  <span class="keywordflow">if</span> (video_info->is_encrypted()) {</div><div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  <span class="keywordflow">if</span> (video_info->has_clear_lead()) {</div><div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  <span class="comment">// Add a second entry for clear content.</span></div><div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  sample_description.video_entries.push_back(video);</div><div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  }</div><div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  <span class="comment">// Convert the first entry to an encrypted entry.</span></div><div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  <a class="code" href="../../d0/d73/structshaka_1_1media_1_1mp4_1_1VideoSampleEntry.html">VideoSampleEntry</a>& entry = sample_description.video_entries[0];</div><div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  GenerateSinf(entry.format, video_info->encryption_config(), &entry.sinf);</div><div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  entry.format = FOURCC_encv;</div><div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  }</div><div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00434"></a><span class="lineno"> 434</span> }</div><div class="line"><a name="l00435"></a><span class="lineno"> 435</span> </div><div class="line"><a name="l00436"></a><span class="lineno"> 436</span> <span class="keywordtype">bool</span> MP4Muxer::GenerateAudioTrak(<span class="keyword">const</span> <a class="code" href="../../da/d4e/classshaka_1_1media_1_1AudioStreamInfo.html">AudioStreamInfo</a>* audio_info,</div><div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  <a class="code" href="../../d3/db5/structshaka_1_1media_1_1mp4_1_1Track.html">Track</a>* trak,</div><div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  uint32_t track_id) {</div><div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  InitializeTrak(audio_info, trak);</div><div class="line"><a name="l00440"></a><span class="lineno"> 440</span> </div><div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  trak->header.volume = 0x100;</div><div class="line"><a name="l00442"></a><span class="lineno"> 442</span> </div><div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  <a class="code" href="../../d8/d5b/structshaka_1_1media_1_1mp4_1_1AudioSampleEntry.html">AudioSampleEntry</a> audio;</div><div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  audio.format =</div><div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  CodecToFourCC(audio_info->codec(), H26xStreamFormat::kUnSpecified);</div><div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  <span class="keywordflow">switch</span>(audio_info->codec()){</div><div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  <span class="keywordflow">case</span> kCodecAAC:</div><div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  audio.esds.es_descriptor.set_object_type(</div><div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  ObjectType::kISO_14496_3); <span class="comment">// MPEG4 AAC.</span></div><div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  audio.esds.es_descriptor.set_esid(track_id);</div><div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  audio.esds.es_descriptor.set_decoder_specific_info(</div><div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  audio_info->codec_config());</div><div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  audio.esds.es_descriptor.set_max_bitrate(audio_info->max_bitrate());</div><div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  audio.esds.es_descriptor.set_avg_bitrate(audio_info->avg_bitrate());</div><div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  <span class="keywordflow">case</span> kCodecDTSC:</div><div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  <span class="keywordflow">case</span> kCodecDTSH:</div><div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  <span class="keywordflow">case</span> kCodecDTSL:</div><div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  <span class="keywordflow">case</span> kCodecDTSE:</div><div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  <span class="keywordflow">case</span> kCodecDTSM:</div><div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  audio.ddts.extra_data = audio_info->codec_config();</div><div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  audio.ddts.max_bitrate = audio_info->max_bitrate();</div><div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  audio.ddts.avg_bitrate = audio_info->avg_bitrate();</div><div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  audio.ddts.sampling_frequency = audio_info->sampling_frequency();</div><div class="line"><a name="l00465"></a><span class="lineno"> 465</span>  audio.ddts.pcm_sample_depth = audio_info->sample_bits();</div><div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  <span class="keywordflow">case</span> kCodecAC3:</div><div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  audio.dac3.data = audio_info->codec_config();</div><div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  <span class="keywordflow">case</span> kCodecEAC3:</div><div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  audio.dec3.data = audio_info->codec_config();</div><div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  <span class="keywordflow">case</span> kCodecFlac:</div><div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  audio.dfla.data = audio_info->codec_config();</div><div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  <span class="keywordflow">case</span> kCodecOpus:</div><div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  audio.dops.opus_identification_header = audio_info->codec_config();</div><div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  <span class="keywordflow">default</span>:</div><div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  NOTIMPLEMENTED() << <span class="stringliteral">" Unsupported audio codec "</span> << audio_info->codec();</div><div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  }</div><div class="line"><a name="l00483"></a><span class="lineno"> 483</span> </div><div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  <span class="keywordflow">if</span> (audio_info->codec() == kCodecAC3 || audio_info->codec() == kCodecEAC3) {</div><div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  <span class="comment">// AC3 and EC3 does not fill in actual channel count and sample size in</span></div><div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  <span class="comment">// sample description entry. Instead, two constants are used.</span></div><div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  audio.channelcount = 2;</div><div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  audio.samplesize = 16;</div><div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  audio.channelcount = audio_info->num_channels();</div><div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  audio.samplesize = audio_info->sample_bits();</div><div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  }</div><div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  audio.samplerate = audio_info->sampling_frequency();</div><div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  <a class="code" href="../../d1/dee/structshaka_1_1media_1_1mp4_1_1SampleTable.html">SampleTable</a>& sample_table = trak->media.information.sample_table;</div><div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  <a class="code" href="../../da/df5/structshaka_1_1media_1_1mp4_1_1SampleDescription.html">SampleDescription</a>& sample_description = sample_table.description;</div><div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  sample_description.type = kAudio;</div><div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  sample_description.audio_entries.push_back(audio);</div><div class="line"><a name="l00498"></a><span class="lineno"> 498</span> </div><div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  <span class="keywordflow">if</span> (audio_info->is_encrypted()) {</div><div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  <span class="keywordflow">if</span> (audio_info->has_clear_lead()) {</div><div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  <span class="comment">// Add a second entry for clear content.</span></div><div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  sample_description.audio_entries.push_back(audio);</div><div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  }</div><div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  <span class="comment">// Convert the first entry to an encrypted entry.</span></div><div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  <a class="code" href="../../d8/d5b/structshaka_1_1media_1_1mp4_1_1AudioSampleEntry.html">AudioSampleEntry</a>& entry = sample_description.audio_entries[0];</div><div class="line"><a name="l00506"></a><span class="lineno"> 506</span>  GenerateSinf(entry.format, audio_info->encryption_config(), &entry.sinf);</div><div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  entry.format = FOURCC_enca;</div><div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  }</div><div class="line"><a name="l00509"></a><span class="lineno"> 509</span> </div><div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  <span class="keywordflow">if</span> (audio_info->seek_preroll_ns() > 0) {</div><div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  sample_table.sample_group_descriptions.resize(1);</div><div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  <a class="code" href="../../d7/d01/structshaka_1_1media_1_1mp4_1_1SampleGroupDescription.html">SampleGroupDescription</a>& sample_group_description =</div><div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  sample_table.sample_group_descriptions.back();</div><div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  sample_group_description.grouping_type = FOURCC_roll;</div><div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  sample_group_description.audio_roll_recovery_entries.resize(1);</div><div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  sample_group_description.audio_roll_recovery_entries[0].roll_distance =</div><div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  GetRollDistance(audio_info->seek_preroll_ns(), audio.samplerate);</div><div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  <span class="comment">// sample to group box is not allowed in the init segment per CMAF</span></div><div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  <span class="comment">// specification. It is put in the fragment instead.</span></div><div class="line"><a name="l00520"></a><span class="lineno"> 520</span>  }</div><div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00522"></a><span class="lineno"> 522</span> }</div><div class="line"><a name="l00523"></a><span class="lineno"> 523</span> </div><div class="line"><a name="l00524"></a><span class="lineno"> 524</span> <span class="keywordtype">bool</span> MP4Muxer::GenerateTextTrak(<span class="keyword">const</span> <a class="code" href="../../db/dab/classshaka_1_1media_1_1TextStreamInfo.html">TextStreamInfo</a>* text_info,</div><div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  <a class="code" href="../../d3/db5/structshaka_1_1media_1_1mp4_1_1Track.html">Track</a>* trak,</div><div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  uint32_t track_id) {</div><div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  InitializeTrak(text_info, trak);</div><div class="line"><a name="l00528"></a><span class="lineno"> 528</span> </div><div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  <span class="keywordflow">if</span> (text_info->codec_string() == <span class="stringliteral">"wvtt"</span>) {</div><div class="line"><a name="l00530"></a><span class="lineno"> 530</span>  <span class="comment">// Handle WebVTT.</span></div><div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  <a class="code" href="../../d7/dc3/structshaka_1_1media_1_1mp4_1_1TextSampleEntry.html">TextSampleEntry</a> webvtt;</div><div class="line"><a name="l00532"></a><span class="lineno"> 532</span>  webvtt.format = FOURCC_wvtt;</div><div class="line"><a name="l00533"></a><span class="lineno"> 533</span> </div><div class="line"><a name="l00534"></a><span class="lineno"> 534</span>  <span class="comment">// 14496-30:2014 7.5 Web Video Text Tracks Sample entry format.</span></div><div class="line"><a name="l00535"></a><span class="lineno"> 535</span>  <span class="comment">// In the sample entry, a WebVTT configuration box must occur, carrying</span></div><div class="line"><a name="l00536"></a><span class="lineno"> 536</span>  <span class="comment">// exactly the lines of the WebVTT file header, i.e. all text lines up to</span></div><div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  <span class="comment">// but excluding the 'two or more line terminators' that end the header.</span></div><div class="line"><a name="l00538"></a><span class="lineno"> 538</span>  webvtt.config.config = <span class="stringliteral">"WEBVTT"</span>;</div><div class="line"><a name="l00539"></a><span class="lineno"> 539</span>  <span class="comment">// The spec does not define a way to carry STYLE and REGION information in</span></div><div class="line"><a name="l00540"></a><span class="lineno"> 540</span>  <span class="comment">// the mp4 container.</span></div><div class="line"><a name="l00541"></a><span class="lineno"> 541</span>  <span class="keywordflow">if</span> (!text_info->codec_config().empty()) {</div><div class="line"><a name="l00542"></a><span class="lineno"> 542</span>  LOG(INFO) << <span class="stringliteral">"Skipping possible style / region configuration as the spec "</span></div><div class="line"><a name="l00543"></a><span class="lineno"> 543</span>  <span class="stringliteral">"does not define a way to carry them inside ISO-BMFF files."</span>;</div><div class="line"><a name="l00544"></a><span class="lineno"> 544</span>  }</div><div class="line"><a name="l00545"></a><span class="lineno"> 545</span> </div><div class="line"><a name="l00546"></a><span class="lineno"> 546</span>  <span class="comment">// TODO(rkuroiwa): This should be the source file URI(s). Putting bogus</span></div><div class="line"><a name="l00547"></a><span class="lineno"> 547</span>  <span class="comment">// string for now so that the box will be there for samples with overlapping</span></div><div class="line"><a name="l00548"></a><span class="lineno"> 548</span>  <span class="comment">// cues.</span></div><div class="line"><a name="l00549"></a><span class="lineno"> 549</span>  webvtt.label.source_label = <span class="stringliteral">"source_label"</span>;</div><div class="line"><a name="l00550"></a><span class="lineno"> 550</span>  <a class="code" href="../../da/df5/structshaka_1_1media_1_1mp4_1_1SampleDescription.html">SampleDescription</a>& sample_description =</div><div class="line"><a name="l00551"></a><span class="lineno"> 551</span>  trak->media.information.sample_table.description;</div><div class="line"><a name="l00552"></a><span class="lineno"> 552</span>  sample_description.type = kText;</div><div class="line"><a name="l00553"></a><span class="lineno"> 553</span>  sample_description.text_entries.push_back(webvtt);</div><div class="line"><a name="l00554"></a><span class="lineno"> 554</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  }</div><div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  NOTIMPLEMENTED() << text_info->codec_string()</div><div class="line"><a name="l00557"></a><span class="lineno"> 557</span>  << <span class="stringliteral">" handling not implemented yet."</span>;</div><div class="line"><a name="l00558"></a><span class="lineno"> 558</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00559"></a><span class="lineno"> 559</span> }</div><div class="line"><a name="l00560"></a><span class="lineno"> 560</span> </div><div class="line"><a name="l00561"></a><span class="lineno"> 561</span> base::Optional<Range> MP4Muxer::GetInitRangeStartAndEnd() {</div><div class="line"><a name="l00562"></a><span class="lineno"> 562</span>  <span class="keywordtype">size_t</span> range_offset = 0;</div><div class="line"><a name="l00563"></a><span class="lineno"> 563</span>  <span class="keywordtype">size_t</span> range_size = 0;</div><div class="line"><a name="l00564"></a><span class="lineno"> 564</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> has_range = segmenter_->GetInitRange(&range_offset, &range_size);</div><div class="line"><a name="l00565"></a><span class="lineno"> 565</span> </div><div class="line"><a name="l00566"></a><span class="lineno"> 566</span>  <span class="keywordflow">if</span> (!has_range)</div><div class="line"><a name="l00567"></a><span class="lineno"> 567</span>  <span class="keywordflow">return</span> base::nullopt;</div><div class="line"><a name="l00568"></a><span class="lineno"> 568</span> </div><div class="line"><a name="l00569"></a><span class="lineno"> 569</span>  <a class="code" href="../../d9/de0/structshaka_1_1media_1_1Range.html">Range</a> range;</div><div class="line"><a name="l00570"></a><span class="lineno"> 570</span>  SetStartAndEndFromOffsetAndSize(range_offset, range_size, &range);</div><div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  <span class="keywordflow">return</span> range;</div><div class="line"><a name="l00572"></a><span class="lineno"> 572</span> }</div><div class="line"><a name="l00573"></a><span class="lineno"> 573</span> </div><div class="line"><a name="l00574"></a><span class="lineno"> 574</span> base::Optional<Range> MP4Muxer::GetIndexRangeStartAndEnd() {</div><div class="line"><a name="l00575"></a><span class="lineno"> 575</span>  <span class="keywordtype">size_t</span> range_offset = 0;</div><div class="line"><a name="l00576"></a><span class="lineno"> 576</span>  <span class="keywordtype">size_t</span> range_size = 0;</div><div class="line"><a name="l00577"></a><span class="lineno"> 577</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> has_range = segmenter_->GetIndexRange(&range_offset, &range_size);</div><div class="line"><a name="l00578"></a><span class="lineno"> 578</span> </div><div class="line"><a name="l00579"></a><span class="lineno"> 579</span>  <span class="keywordflow">if</span> (!has_range)</div><div class="line"><a name="l00580"></a><span class="lineno"> 580</span>  <span class="keywordflow">return</span> base::nullopt;</div><div class="line"><a name="l00581"></a><span class="lineno"> 581</span> </div><div class="line"><a name="l00582"></a><span class="lineno"> 582</span>  <a class="code" href="../../d9/de0/structshaka_1_1media_1_1Range.html">Range</a> range;</div><div class="line"><a name="l00583"></a><span class="lineno"> 583</span>  SetStartAndEndFromOffsetAndSize(range_offset, range_size, &range);</div><div class="line"><a name="l00584"></a><span class="lineno"> 584</span>  <span class="keywordflow">return</span> range;</div><div class="line"><a name="l00585"></a><span class="lineno"> 585</span> }</div><div class="line"><a name="l00586"></a><span class="lineno"> 586</span> </div><div class="line"><a name="l00587"></a><span class="lineno"> 587</span> <span class="keywordtype">void</span> MP4Muxer::FireOnMediaStartEvent() {</div><div class="line"><a name="l00588"></a><span class="lineno"> 588</span>  <span class="keywordflow">if</span> (!muxer_listener())</div><div class="line"><a name="l00589"></a><span class="lineno"> 589</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00590"></a><span class="lineno"> 590</span> </div><div class="line"><a name="l00591"></a><span class="lineno"> 591</span>  <span class="keywordflow">if</span> (streams().size() > 1) {</div><div class="line"><a name="l00592"></a><span class="lineno"> 592</span>  LOG(ERROR) << <span class="stringliteral">"MuxerListener cannot take more than 1 stream."</span>;</div><div class="line"><a name="l00593"></a><span class="lineno"> 593</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00594"></a><span class="lineno"> 594</span>  }</div><div class="line"><a name="l00595"></a><span class="lineno"> 595</span>  DCHECK(!streams().empty()) << <span class="stringliteral">"Media started without a stream."</span>;</div><div class="line"><a name="l00596"></a><span class="lineno"> 596</span> </div><div class="line"><a name="l00597"></a><span class="lineno"> 597</span>  <span class="keyword">const</span> uint32_t timescale = segmenter_->GetReferenceTimeScale();</div><div class="line"><a name="l00598"></a><span class="lineno"> 598</span>  muxer_listener()-><a class="code" href="../../dd/d7a/classshaka_1_1media_1_1MuxerListener.html#a31536ec385a7ec22f323a42b872b499a">OnMediaStart</a>(options(), *streams().front(), timescale,</div><div class="line"><a name="l00599"></a><span class="lineno"> 599</span>  MuxerListener::kContainerMp4);</div><div class="line"><a name="l00600"></a><span class="lineno"> 600</span> }</div><div class="line"><a name="l00601"></a><span class="lineno"> 601</span> </div><div class="line"><a name="l00602"></a><span class="lineno"> 602</span> <span class="keywordtype">void</span> MP4Muxer::FireOnMediaEndEvent() {</div><div class="line"><a name="l00603"></a><span class="lineno"> 603</span>  <span class="keywordflow">if</span> (!muxer_listener())</div><div class="line"><a name="l00604"></a><span class="lineno"> 604</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00605"></a><span class="lineno"> 605</span> </div><div class="line"><a name="l00606"></a><span class="lineno"> 606</span>  <a class="code" href="../../d1/d03/structshaka_1_1media_1_1MuxerListener_1_1MediaRanges.html">MuxerListener::MediaRanges</a> media_range;</div><div class="line"><a name="l00607"></a><span class="lineno"> 607</span>  media_range.<a class="code" href="../../d1/d03/structshaka_1_1media_1_1MuxerListener_1_1MediaRanges.html#a6070da9ce7fab251c82b25a4020373c0">init_range</a> = GetInitRangeStartAndEnd();</div><div class="line"><a name="l00608"></a><span class="lineno"> 608</span>  media_range.<a class="code" href="../../d1/d03/structshaka_1_1media_1_1MuxerListener_1_1MediaRanges.html#aa15231fb064efc4b56800df24b074b29">index_range</a> = GetIndexRangeStartAndEnd();</div><div class="line"><a name="l00609"></a><span class="lineno"> 609</span>  media_range.<a class="code" href="../../d1/d03/structshaka_1_1media_1_1MuxerListener_1_1MediaRanges.html#a836626da601a9f6ea54502c7e5bdd7c9">subsegment_ranges</a> = segmenter_->GetSegmentRanges();</div><div class="line"><a name="l00610"></a><span class="lineno"> 610</span> </div><div class="line"><a name="l00611"></a><span class="lineno"> 611</span>  <span class="keyword">const</span> <span class="keywordtype">float</span> duration_seconds = <span class="keyword">static_cast<</span><span class="keywordtype">float</span><span class="keyword">></span>(segmenter_->GetDuration());</div><div class="line"><a name="l00612"></a><span class="lineno"> 612</span>  muxer_listener()-><a class="code" href="../../dd/d7a/classshaka_1_1media_1_1MuxerListener.html#a11d4301cd53ab421f524bfa143eac21a">OnMediaEnd</a>(media_range, duration_seconds);</div><div class="line"><a name="l00613"></a><span class="lineno"> 613</span> }</div><div class="line"><a name="l00614"></a><span class="lineno"> 614</span> </div><div class="line"><a name="l00615"></a><span class="lineno"> 615</span> uint64_t MP4Muxer::IsoTimeNow() {</div><div class="line"><a name="l00616"></a><span class="lineno"> 616</span>  <span class="comment">// Time in seconds from Jan. 1, 1904 to epoch time, i.e. Jan. 1, 1970.</span></div><div class="line"><a name="l00617"></a><span class="lineno"> 617</span>  <span class="keyword">const</span> uint64_t kIsomTimeOffset = 2082844800l;</div><div class="line"><a name="l00618"></a><span class="lineno"> 618</span>  <span class="keywordflow">return</span> kIsomTimeOffset +</div><div class="line"><a name="l00619"></a><span class="lineno"> 619</span>  (clock() ? clock()->Now() : base::Time::Now()).ToDoubleT();</div><div class="line"><a name="l00620"></a><span class="lineno"> 620</span> }</div><div class="line"><a name="l00621"></a><span class="lineno"> 621</span> </div><div class="line"><a name="l00622"></a><span class="lineno"> 622</span> } <span class="comment">// namespace mp4</span></div><div class="line"><a name="l00623"></a><span class="lineno"> 623</span> } <span class="comment">// namespace media</span></div><div class="line"><a name="l00624"></a><span class="lineno"> 624</span> } <span class="comment">// namespace shaka</span></div><div class="ttc" id="structshaka_1_1media_1_1MuxerListener_1_1MediaRanges_html_a6070da9ce7fab251c82b25a4020373c0"><div class="ttname"><a href="../../d1/d03/structshaka_1_1media_1_1MuxerListener_1_1MediaRanges.html#a6070da9ce7fab251c82b25a4020373c0">shaka::media::MuxerListener::MediaRanges::init_range</a></div><div class="ttdeci">base::Optional< Range > init_range</div><div class="ttdoc">Range of the initialization section of a segment. </div><div class="ttdef"><b>Definition:</b> <a href="../../de/dfa/muxer__listener_8h_source.html#l00048">muxer_listener.h:48</a></div></div>
|
||
<div class="ttc" id="classshaka_1_1media_1_1StreamInfo_html"><div class="ttname"><a href="../../d5/db1/classshaka_1_1media_1_1StreamInfo.html">shaka::media::StreamInfo</a></div><div class="ttdoc">Abstract class holds stream information. </div><div class="ttdef"><b>Definition:</b> <a href="../../d8/daa/stream__info_8h_source.html#l00061">stream_info.h:61</a></div></div>
|
||
<div class="ttc" id="structshaka_1_1media_1_1mp4_1_1FileType_html"><div class="ttname"><a href="../../d5/d03/structshaka_1_1media_1_1mp4_1_1FileType.html">shaka::media::mp4::FileType</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d7b/box__definitions_8h_source.html#l00046">box_definitions.h:46</a></div></div>
|
||
<div class="ttc" id="structshaka_1_1media_1_1SegmentInfo_html"><div class="ttname"><a href="../../d0/dc0/structshaka_1_1media_1_1SegmentInfo.html">shaka::media::SegmentInfo</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d93/media__handler_8h_source.html#l00055">media_handler.h:55</a></div></div>
|
||
<div class="ttc" id="structshaka_1_1media_1_1MuxerListener_1_1MediaRanges_html_aa15231fb064efc4b56800df24b074b29"><div class="ttname"><a href="../../d1/d03/structshaka_1_1media_1_1MuxerListener_1_1MediaRanges.html#aa15231fb064efc4b56800df24b074b29">shaka::media::MuxerListener::MediaRanges::index_range</a></div><div class="ttdeci">base::Optional< Range > index_range</div><div class="ttdoc">Range of the index section of a segment. </div><div class="ttdef"><b>Definition:</b> <a href="../../de/dfa/muxer__listener_8h_source.html#l00050">muxer_listener.h:50</a></div></div>
|
||
<div class="ttc" id="structshaka_1_1media_1_1mp4_1_1AudioSampleEntry_html"><div class="ttname"><a href="../../d8/d5b/structshaka_1_1media_1_1mp4_1_1AudioSampleEntry.html">shaka::media::mp4::AudioSampleEntry</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d7b/box__definitions_8h_source.html#l00345">box_definitions.h:345</a></div></div>
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||
<div class="ttc" id="structshaka_1_1media_1_1MuxerOptions_html_a5397ee8759a663aea68261600e528d82"><div class="ttname"><a href="../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html#a5397ee8759a663aea68261600e528d82">shaka::media::MuxerOptions::output_file_name</a></div><div class="ttdeci">std::string output_file_name</div><div class="ttdef"><b>Definition:</b> <a href="../../d0/d0e/muxer__options_8h_source.html#l00034">muxer_options.h:34</a></div></div>
|
||
<div class="ttc" id="structshaka_1_1media_1_1MuxerListener_1_1MediaRanges_html_a836626da601a9f6ea54502c7e5bdd7c9"><div class="ttname"><a href="../../d1/d03/structshaka_1_1media_1_1MuxerListener_1_1MediaRanges.html#a836626da601a9f6ea54502c7e5bdd7c9">shaka::media::MuxerListener::MediaRanges::subsegment_ranges</a></div><div class="ttdeci">std::vector< Range > subsegment_ranges</div><div class="ttdef"><b>Definition:</b> <a href="../../de/dfa/muxer__listener_8h_source.html#l00054">muxer_listener.h:54</a></div></div>
|
||
<div class="ttc" id="structshaka_1_1media_1_1mp4_1_1TextSampleEntry_html"><div class="ttname"><a href="../../d7/dc3/structshaka_1_1media_1_1mp4_1_1TextSampleEntry.html">shaka::media::mp4::TextSampleEntry</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d7b/box__definitions_8h_source.html#l00383">box_definitions.h:383</a></div></div>
|
||
<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1MP4Muxer_html_a5b6a878865250e3e17268c011a361497"><div class="ttname"><a href="../../db/d30/classshaka_1_1media_1_1mp4_1_1MP4Muxer.html#a5b6a878865250e3e17268c011a361497">shaka::media::mp4::MP4Muxer::MP4Muxer</a></div><div class="ttdeci">MP4Muxer(const MuxerOptions &options)</div><div class="ttdoc">Create a MP4Muxer object from MuxerOptions. </div><div class="ttdef"><b>Definition:</b> <a href="../../da/d88/mp4__muxer_8cc_source.html#l00145">mp4_muxer.cc:145</a></div></div>
|
||
<div class="ttc" id="structshaka_1_1media_1_1mp4_1_1TrackExtends_html"><div class="ttname"><a href="../../de/d29/structshaka_1_1media_1_1mp4_1_1TrackExtends.html">shaka::media::mp4::TrackExtends</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d7b/box__definitions_8h_source.html#l00642">box_definitions.h:642</a></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>
|
||
<div class="ttc" id="structshaka_1_1media_1_1MuxerOptions_html"><div class="ttname"><a href="../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html">shaka::media::MuxerOptions</a></div><div class="ttdoc">This structure contains the list of configuration options for Muxer. </div><div class="ttdef"><b>Definition:</b> <a href="../../d0/d0e/muxer__options_8h_source.html#l00020">muxer_options.h:20</a></div></div>
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||
<div class="ttc" id="structshaka_1_1media_1_1mp4_1_1Track_html"><div class="ttname"><a href="../../d3/db5/structshaka_1_1media_1_1mp4_1_1Track.html">shaka::media::mp4::Track</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d7b/box__definitions_8h_source.html#l00627">box_definitions.h:627</a></div></div>
|
||
<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="structshaka_1_1media_1_1MuxerOptions_html_aa616f5958ea9df2d70f3fe42ff47ff43"><div class="ttname"><a href="../../d0/d27/structshaka_1_1media_1_1MuxerOptions.html#aa616f5958ea9df2d70f3fe42ff47ff43">shaka::media::MuxerOptions::mp4_params</a></div><div class="ttdeci">Mp4OutputParams mp4_params</div><div class="ttdoc">MP4 (ISO-BMFF) specific parameters. </div><div class="ttdef"><b>Definition:</b> <a href="../../d0/d0e/muxer__options_8h_source.html#l00025">muxer_options.h:25</a></div></div>
|
||
<div class="ttc" id="structshaka_1_1media_1_1mp4_1_1EditListEntry_html"><div class="ttname"><a href="../../d4/d18/structshaka_1_1media_1_1mp4_1_1EditListEntry.html">shaka::media::mp4::EditListEntry</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d7b/box__definitions_8h_source.html#l00208">box_definitions.h:208</a></div></div>
|
||
<div class="ttc" id="structshaka_1_1media_1_1mp4_1_1SampleDescription_html"><div class="ttname"><a href="../../da/df5/structshaka_1_1media_1_1mp4_1_1SampleDescription.html">shaka::media::mp4::SampleDescription</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d7b/box__definitions_8h_source.html#l00401">box_definitions.h:401</a></div></div>
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||
<div class="ttc" id="structshaka_1_1media_1_1mp4_1_1Movie_html"><div class="ttname"><a href="../../d0/d9a/structshaka_1_1media_1_1mp4_1_1Movie.html">shaka::media::mp4::Movie</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d7b/box__definitions_8h_source.html#l00659">box_definitions.h:659</a></div></div>
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||
<div class="ttc" id="structshaka_1_1media_1_1MuxerListener_1_1MediaRanges_html"><div class="ttname"><a href="../../d1/d03/structshaka_1_1media_1_1MuxerListener_1_1MediaRanges.html">shaka::media::MuxerListener::MediaRanges</a></div><div class="ttdef"><b>Definition:</b> <a href="../../de/dfa/muxer__listener_8h_source.html#l00046">muxer_listener.h:46</a></div></div>
|
||
<div class="ttc" id="classshaka_1_1media_1_1VideoStreamInfo_html_a40b2e26c533904ff890f4ea8086d7f71"><div class="ttname"><a href="../../d6/db1/classshaka_1_1media_1_1VideoStreamInfo.html#a40b2e26c533904ff890f4ea8086d7f71">shaka::media::VideoStreamInfo::pixel_height</a></div><div class="ttdeci">uint32_t pixel_height() const</div><div class="ttdef"><b>Definition:</b> <a href="../../d7/d87/video__stream__info_8h_source.html#l00064">video_stream_info.h:64</a></div></div>
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||
<div class="ttc" id="classshaka_1_1media_1_1MuxerListener_html_a11d4301cd53ab421f524bfa143eac21a"><div class="ttname"><a href="../../dd/d7a/classshaka_1_1media_1_1MuxerListener.html#a11d4301cd53ab421f524bfa143eac21a">shaka::media::MuxerListener::OnMediaEnd</a></div><div class="ttdeci">virtual void OnMediaEnd(const MediaRanges &media_ranges, float duration_seconds)=0</div></div>
|
||
<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>
|
||
<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1SingleSegmentSegmenter_html"><div class="ttname"><a href="../../d0/dab/classshaka_1_1media_1_1mp4_1_1SingleSegmentSegmenter.html">shaka::media::mp4::SingleSegmentSegmenter</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d9/d01/mp4_2single__segment__segmenter_8h_source.html#l00029">single_segment_segmenter.h:29</a></div></div>
|
||
<div class="ttc" id="classshaka_1_1media_1_1Muxer_html"><div class="ttname"><a href="../../df/d46/classshaka_1_1media_1_1Muxer.html">shaka::media::Muxer</a></div><div class="ttdef"><b>Definition:</b> <a href="../../db/df6/muxer_8h_source.html#l00030">muxer.h:30</a></div></div>
|
||
<div class="ttc" id="classshaka_1_1media_1_1MuxerListener_html_a31536ec385a7ec22f323a42b872b499a"><div class="ttname"><a href="../../dd/d7a/classshaka_1_1media_1_1MuxerListener.html#a31536ec385a7ec22f323a42b872b499a">shaka::media::MuxerListener::OnMediaStart</a></div><div class="ttdeci">virtual void OnMediaStart(const MuxerOptions &muxer_options, const StreamInfo &stream_info, uint32_t time_scale, ContainerType container_type)=0</div></div>
|
||
<div class="ttc" id="structshaka_1_1media_1_1Range_html"><div class="ttname"><a href="../../d9/de0/structshaka_1_1media_1_1Range.html">shaka::media::Range</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d1/d12/range_8h_source.html#l00019">range.h:19</a></div></div>
|
||
<div class="ttc" id="structshaka_1_1media_1_1mp4_1_1ProtectionSystemSpecificHeader_html"><div class="ttname"><a href="../../d0/d3c/structshaka_1_1media_1_1mp4_1_1ProtectionSystemSpecificHeader.html">shaka::media::mp4::ProtectionSystemSpecificHeader</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d7b/box__definitions_8h_source.html#l00058">box_definitions.h:58</a></div></div>
|
||
<div class="ttc" id="structshaka_1_1media_1_1mp4_1_1SampleGroupDescription_html"><div class="ttname"><a href="../../d7/d01/structshaka_1_1media_1_1mp4_1_1SampleGroupDescription.html">shaka::media::mp4::SampleGroupDescription</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d7b/box__definitions_8h_source.html#l00511">box_definitions.h:511</a></div></div>
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||
<div class="ttc" id="structshaka_1_1Mp4OutputParams_html_abdff0b6ab552e27e275d8d23cc2f60b1"><div class="ttname"><a href="../../d0/d43/structshaka_1_1Mp4OutputParams.html#abdff0b6ab552e27e275d8d23cc2f60b1">shaka::Mp4OutputParams::include_pssh_in_stream</a></div><div class="ttdeci">bool include_pssh_in_stream</div><div class="ttdef"><b>Definition:</b> <a href="../../d6/dbe/mp4__output__params_8h_source.html#l00018">mp4_output_params.h:18</a></div></div>
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||
<div class="ttc" id="classshaka_1_1media_1_1TextStreamInfo_html"><div class="ttname"><a href="../../db/dab/classshaka_1_1media_1_1TextStreamInfo.html">shaka::media::TextStreamInfo</a></div><div class="ttdef"><b>Definition:</b> <a href="../../da/d2a/text__stream__info_8h_source.html#l00017">text_stream_info.h:17</a></div></div>
|
||
<div class="ttc" id="classshaka_1_1media_1_1VideoStreamInfo_html_ac0356f4786e3cc2699c13a253c5f3cb5"><div class="ttname"><a href="../../d6/db1/classshaka_1_1media_1_1VideoStreamInfo.html#ac0356f4786e3cc2699c13a253c5f3cb5">shaka::media::VideoStreamInfo::pixel_width</a></div><div class="ttdeci">uint32_t pixel_width() const</div><div class="ttdef"><b>Definition:</b> <a href="../../d7/d87/video__stream__info_8h_source.html#l00061">video_stream_info.h:61</a></div></div>
|
||
<div class="ttc" id="structshaka_1_1media_1_1mp4_1_1VideoSampleEntry_html"><div class="ttname"><a href="../../d0/d73/structshaka_1_1media_1_1mp4_1_1VideoSampleEntry.html">shaka::media::mp4::VideoSampleEntry</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d7b/box__definitions_8h_source.html#l00277">box_definitions.h:277</a></div></div>
|
||
<div class="ttc" id="classshaka_1_1media_1_1VideoStreamInfo_html"><div class="ttname"><a href="../../d6/db1/classshaka_1_1media_1_1VideoStreamInfo.html">shaka::media::VideoStreamInfo</a></div><div class="ttdoc">Holds video stream information. </div><div class="ttdef"><b>Definition:</b> <a href="../../d7/d87/video__stream__info_8h_source.html#l00023">video_stream_info.h:23</a></div></div>
|
||
<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1MultiSegmentSegmenter_html"><div class="ttname"><a href="../../d8/db7/classshaka_1_1media_1_1mp4_1_1MultiSegmentSegmenter.html">shaka::media::mp4::MultiSegmentSegmenter</a></div><div class="ttdef"><b>Definition:</b> <a href="../../da/d41/mp4_2multi__segment__segmenter_8h_source.html#l00023">multi_segment_segmenter.h:23</a></div></div>
|
||
<div class="ttc" id="structshaka_1_1media_1_1mp4_1_1SampleTable_html"><div class="ttname"><a href="../../d1/dee/structshaka_1_1media_1_1mp4_1_1SampleTable.html">shaka::media::mp4::SampleTable</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d7b/box__definitions_8h_source.html#l00543">box_definitions.h:543</a></div></div>
|
||
<div class="ttc" id="classshaka_1_1media_1_1AudioStreamInfo_html"><div class="ttname"><a href="../../da/d4e/classshaka_1_1media_1_1AudioStreamInfo.html">shaka::media::AudioStreamInfo</a></div><div class="ttdoc">Holds audio stream information. </div><div class="ttdef"><b>Definition:</b> <a href="../../df/d32/audio__stream__info_8h_source.html#l00018">audio_stream_info.h:18</a></div></div>
|
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<div class="ttc" id="structshaka_1_1media_1_1ProtectionSystemSpecificInfo_html"><div class="ttname"><a href="../../d0/d86/structshaka_1_1media_1_1ProtectionSystemSpecificInfo.html">shaka::media::ProtectionSystemSpecificInfo</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d6/d59/protection__system__specific__info_8h_source.html#l00026">protection_system_specific_info.h:26</a></div></div>
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