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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">// Copyright 2014 The Chromium Authors. All rights reserved.</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment">// Use of this source code is governed by a BSD-style license that can be</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment">// found in the LICENSE file.</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;</div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="preprocessor">#include &quot;packager/media/formats/wvm/wvm_media_parser.h&quot;</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;</div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="preprocessor">#include &lt;map&gt;</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="preprocessor">#include &lt;sstream&gt;</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="preprocessor">#include &lt;vector&gt;</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;</div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="preprocessor">#include &quot;packager/base/strings/string_number_conversions.h&quot;</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="preprocessor">#include &quot;packager/media/base/aes_decryptor.h&quot;</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="preprocessor">#include &quot;packager/media/base/audio_stream_info.h&quot;</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="preprocessor">#include &quot;packager/media/base/key_source.h&quot;</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="preprocessor">#include &quot;packager/media/base/media_sample.h&quot;</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="preprocessor">#include &quot;packager/media/base/status.h&quot;</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="preprocessor">#include &quot;packager/media/base/video_stream_info.h&quot;</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="preprocessor">#include &quot;packager/media/codecs/aac_audio_specific_config.h&quot;</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;<span class="preprocessor">#include &quot;packager/media/codecs/avc_decoder_configuration_record.h&quot;</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="preprocessor">#include &quot;packager/media/codecs/es_descriptor.h&quot;</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="preprocessor">#include &quot;packager/media/formats/mp2t/adts_header.h&quot;</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;</div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="preprocessor">#define HAS_HEADER_EXTENSION(x) ((x != 0xBC) &amp;&amp; (x != 0xBE) &amp;&amp; (x != 0xBF) \</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="preprocessor"> &amp;&amp; (x != 0xF0) &amp;&amp; (x != 0xF2) &amp;&amp; (x != 0xF8) \</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;<span class="preprocessor"> &amp;&amp; (x != 0xFF))</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160;<span class="keyword">namespace </span>{</div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;<span class="keyword">const</span> uint32_t kMpeg2ClockRate = 90000;</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;<span class="keyword">const</span> uint32_t kPesOptPts = 0x80;</div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;<span class="keyword">const</span> uint32_t kPesOptDts = 0x40;</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160;<span class="keyword">const</span> uint32_t kPesOptAlign = 0x04;</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160;<span class="keyword">const</span> uint32_t kPsmStreamId = 0xBC;</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160;<span class="keyword">const</span> uint32_t kPaddingStreamId = 0xBE;</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160;<span class="keyword">const</span> uint32_t kIndexMagic = 0x49444d69;</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160;<span class="keyword">const</span> uint32_t kIndexStreamId = 0xBF; <span class="comment">// private_stream_2</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160;<span class="keyword">const</span> uint32_t kIndexVersion4HeaderSize = 12;</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160;<span class="keyword">const</span> uint32_t kEcmStreamId = 0xF0;</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160;<span class="keyword">const</span> uint32_t kV2MetadataStreamId = 0xF1; <span class="comment">// EMM_stream</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160;<span class="keyword">const</span> uint32_t kScramblingBitsMask = 0x30;</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160;<span class="keyword">const</span> uint32_t kStartCode1 = 0x00;</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160;<span class="keyword">const</span> uint32_t kStartCode2 = 0x00;</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160;<span class="keyword">const</span> uint32_t kStartCode3 = 0x01;</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160;<span class="keyword">const</span> uint32_t kStartCode4Pack = 0xBA;</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160;<span class="keyword">const</span> uint32_t kStartCode4System = 0xBB;</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160;<span class="keyword">const</span> uint32_t kStartCode4ProgramEnd = 0xB9;</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160;<span class="keyword">const</span> uint32_t kPesStreamIdVideoMask = 0xF0;</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160;<span class="keyword">const</span> uint32_t kPesStreamIdVideo = 0xE0;</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160;<span class="keyword">const</span> uint32_t kPesStreamIdAudioMask = 0xE0;</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160;<span class="keyword">const</span> uint32_t kPesStreamIdAudio = 0xC0;</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160;<span class="keyword">const</span> uint32_t kVersion4 = 4;</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160;<span class="keyword">const</span> <span class="keywordtype">size_t</span> kAdtsHeaderMinSize = 7;</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160;<span class="keyword">const</span> uint8_t kAacSampleSizeBits = 16;</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160;<span class="comment">// Applies to all video streams.</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160;<span class="keyword">const</span> uint8_t kNaluLengthSize = 4; <span class="comment">// unit is bytes.</span></div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160;<span class="comment">// Placeholder sampling frequency for all audio streams, which</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160;<span class="comment">// will be overwritten after filter parsing.</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160;<span class="keyword">const</span> uint32_t kDefaultSamplingFrequency = 100;</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160;<span class="keyword">const</span> uint16_t kEcmSizeBytes = 80;</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160;<span class="keyword">const</span> uint32_t kInitializationVectorSizeBytes = 16;</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160;<span class="comment">// ECM fields for processing.</span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160;<span class="keyword">const</span> uint32_t kEcmContentKeySizeBytes = 16;</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160;<span class="keyword">const</span> uint32_t kEcmDCPFlagsSizeBytes = 3;</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160;<span class="keyword">const</span> uint32_t kEcmCCIFlagsSizeBytes = 1;</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160;<span class="keyword">const</span> uint32_t kEcmFlagsSizeBytes =</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; kEcmCCIFlagsSizeBytes + kEcmDCPFlagsSizeBytes;</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160;<span class="keyword">const</span> uint32_t kEcmPaddingSizeBytes = 12;</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160;<span class="keyword">const</span> uint32_t kAssetKeySizeBytes = 16;</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160;<span class="comment">// Default audio and video PES stream IDs.</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160;<span class="keyword">const</span> uint8_t kDefaultAudioStreamId = kPesStreamIdAudio;</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160;<span class="keyword">const</span> uint8_t kDefaultVideoStreamId = kPesStreamIdVideo;</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160;</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160;<span class="keyword">enum</span> Type {</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; Type_void = 0,</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; Type_uint8 = 1,</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; Type_int8 = 2,</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; Type_uint16 = 3,</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160; Type_int16 = 4,</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; Type_uint32 = 5,</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; Type_int32 = 6,</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; Type_uint64 = 7,</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; Type_int64 = 8,</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; Type_string = 9,</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; Type_BinaryData = 10</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160;};</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160;} <span class="comment">// namespace</span></div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160;</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160;<span class="keyword">namespace </span>shaka {</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160;<span class="keyword">namespace </span>media {</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160;<span class="keyword">namespace </span>wvm {</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160;</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160;WvmMediaParser::WvmMediaParser()</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; : is_initialized_(false),</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; parse_state_(StartCode1),</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; skip_bytes_(0),</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; metadata_is_complete_(false),</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; current_program_id_(0),</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; pes_stream_id_(0),</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; prev_pes_stream_id_(0),</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; pes_packet_bytes_(0),</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; pes_flags_1_(0),</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; pes_flags_2_(0),</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; prev_pes_flags_1_(0),</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; pes_header_data_bytes_(0),</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; timestamp_(0),</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; pts_(0),</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; dts_(0),</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; index_program_id_(0),</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; media_sample_(NULL),</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; crypto_unit_start_pos_(0),</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; stream_id_count_(0),</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; decryption_key_source_(NULL) {</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160;}</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160;</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160;WvmMediaParser::~WvmMediaParser() {}</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160;</div>
<div class="line"><a name="l00116"></a><span class="lineno"><a class="line" href="../../dc/d18/classshaka_1_1media_1_1wvm_1_1WvmMediaParser.html#a6f931f1702724a9b19c3078a7832bc77"> 116</a></span>&#160;<span class="keywordtype">void</span> WvmMediaParser::Init(<span class="keyword">const</span> InitCB&amp; init_cb,</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; <span class="keyword">const</span> NewSampleCB&amp; new_sample_cb,</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; <a class="code" href="../../d1/d1f/classshaka_1_1media_1_1KeySource.html">KeySource</a>* decryption_key_source) {</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; DCHECK(!is_initialized_);</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; DCHECK(!init_cb.is_null());</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; DCHECK(!new_sample_cb.is_null());</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; decryption_key_source_ = decryption_key_source;</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; init_cb_ = init_cb;</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160; new_sample_cb_ = new_sample_cb;</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160;}</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160;</div>
<div class="line"><a name="l00127"></a><span class="lineno"><a class="line" href="../../dc/d18/classshaka_1_1media_1_1wvm_1_1WvmMediaParser.html#a246702aa75891cbe396ca7cc11e13eeb"> 127</a></span>&#160;<span class="keywordtype">bool</span> WvmMediaParser::Parse(<span class="keyword">const</span> uint8_t* buf, <span class="keywordtype">int</span> size) {</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; <span class="keywordtype">size_t</span> num_bytes = 0;</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160; <span class="keywordtype">size_t</span> prev_size = 0;</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160; <span class="keyword">const</span> uint8_t* read_ptr = buf;</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160; <span class="keyword">const</span> uint8_t* end = read_ptr + size;</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160;</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160; <span class="keywordflow">while</span> (read_ptr &lt; end) {</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; <span class="keywordflow">switch</span> (parse_state_) {</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; <span class="keywordflow">case</span> StartCode1:</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160; <span class="keywordflow">if</span> (*read_ptr == kStartCode1) {</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160; parse_state_ = StartCode2;</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160; }</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160; <span class="keywordflow">case</span> StartCode2:</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160; <span class="keywordflow">if</span> (*read_ptr == kStartCode2) {</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160; parse_state_ = StartCode3;</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160; parse_state_ = StartCode1;</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160; }</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160; <span class="keywordflow">case</span> StartCode3:</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160; <span class="keywordflow">if</span> (*read_ptr == kStartCode3) {</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160; parse_state_ = StartCode4;</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160; parse_state_ = StartCode1;</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160; }</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160; <span class="keywordflow">case</span> StartCode4:</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160; <span class="keywordflow">switch</span> (*read_ptr) {</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; <span class="keywordflow">case</span> kStartCode4Pack:</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160; parse_state_ = PackHeader1;</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160; <span class="keywordflow">case</span> kStartCode4System:</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160; parse_state_ = SystemHeader1;</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160; <span class="keywordflow">case</span> kStartCode4ProgramEnd:</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160; parse_state_ = ProgramEnd;</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160; <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160; parse_state_ = PesStreamId;</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160; <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160; }</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160; <span class="keywordflow">case</span> PackHeader1:</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160; parse_state_ = PackHeader2;</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160; <span class="keywordflow">case</span> PackHeader2:</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160; parse_state_ = PackHeader3;</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>&#160; <span class="keywordflow">case</span> PackHeader3:</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>&#160; parse_state_ = PackHeader4;</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160; <span class="keywordflow">case</span> PackHeader4:</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160; parse_state_ = PackHeader5;</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160; <span class="keywordflow">case</span> PackHeader5:</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>&#160; parse_state_ = PackHeader6;</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160; <span class="keywordflow">case</span> PackHeader6:</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160; parse_state_ = PackHeader7;</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>&#160; <span class="keywordflow">case</span> PackHeader7:</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160; parse_state_ = PackHeader8;</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>&#160; <span class="keywordflow">case</span> PackHeader8:</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>&#160; parse_state_ = PackHeader9;</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>&#160; <span class="keywordflow">case</span> PackHeader9:</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>&#160; parse_state_ = PackHeader10;</div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>&#160; <span class="keywordflow">case</span> PackHeader10:</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>&#160; skip_bytes_ = *read_ptr &amp; 0x07;</div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>&#160; parse_state_ = PackHeaderStuffingSkip;</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>&#160; <span class="keywordflow">case</span> SystemHeader1:</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>&#160; skip_bytes_ = *read_ptr;</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>&#160; skip_bytes_ &lt;&lt;= 8;</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>&#160; parse_state_ = SystemHeader2;</div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>&#160; <span class="keywordflow">case</span> SystemHeader2:</div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>&#160; skip_bytes_ |= *read_ptr;</div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>&#160; parse_state_ = SystemHeaderSkip;</div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>&#160; <span class="keywordflow">case</span> PackHeaderStuffingSkip:</div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>&#160; <span class="keywordflow">if</span> (end &gt;= skip_bytes_ + read_ptr) {</div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>&#160; read_ptr += skip_bytes_;</div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>&#160; skip_bytes_ = 0;</div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>&#160; parse_state_ = StartCode1;</div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>&#160; skip_bytes_ -= (end - read_ptr);</div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>&#160; read_ptr = end;</div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>&#160; }</div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>&#160; <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>&#160; <span class="keywordflow">case</span> SystemHeaderSkip:</div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>&#160; <span class="keywordflow">if</span> (end &gt;= skip_bytes_ + read_ptr) {</div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>&#160; read_ptr += skip_bytes_;</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>&#160; skip_bytes_ = 0;</div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>&#160; parse_state_ = StartCode1;</div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>&#160; uint32_t remaining_size = end - read_ptr;</div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>&#160; skip_bytes_ -= remaining_size;</div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>&#160; read_ptr = end;</div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>&#160; }</div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>&#160; <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>&#160; <span class="keywordflow">case</span> PesStreamId:</div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>&#160; pes_stream_id_ = *read_ptr;</div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>&#160; <span class="keywordflow">if</span> (!metadata_is_complete_ &amp;&amp;</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>&#160; (pes_stream_id_ != kPsmStreamId) &amp;&amp;</div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>&#160; (pes_stream_id_ != kIndexStreamId) &amp;&amp;</div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>&#160; (pes_stream_id_ != kEcmStreamId) &amp;&amp;</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>&#160; (pes_stream_id_ != kV2MetadataStreamId) &amp;&amp;</div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>&#160; (pes_stream_id_ != kPaddingStreamId)) {</div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>&#160; metadata_is_complete_ = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>&#160; }</div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>&#160; parse_state_ = PesPacketLength1;</div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>&#160; <span class="keywordflow">case</span> PesPacketLength1:</div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>&#160; pes_packet_bytes_ = *read_ptr;</div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>&#160; pes_packet_bytes_ &lt;&lt;= 8;</div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>&#160; parse_state_ = PesPacketLength2;</div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>&#160; <span class="keywordflow">case</span> PesPacketLength2:</div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>&#160; pes_packet_bytes_ |= *read_ptr;</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>&#160; <span class="keywordflow">if</span> (HAS_HEADER_EXTENSION(pes_stream_id_)) {</div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>&#160; parse_state_ = PesExtension1;</div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>&#160; pes_flags_1_ = pes_flags_2_ = 0;</div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>&#160; pes_header_data_bytes_ = 0;</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>&#160; parse_state_ = PesPayload;</div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>&#160; }</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>&#160; <span class="keywordflow">case</span> PesExtension1:</div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>&#160; prev_pes_flags_1_ = pes_flags_1_;</div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>&#160; pes_flags_1_ = *read_ptr;</div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>&#160; --pes_packet_bytes_;</div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>&#160; parse_state_ = PesExtension2;</div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>&#160; <span class="keywordflow">case</span> PesExtension2:</div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>&#160; pes_flags_2_ = *read_ptr;</div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>&#160; --pes_packet_bytes_;</div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>&#160; parse_state_ = PesExtension3;</div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>&#160; <span class="keywordflow">case</span> PesExtension3:</div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>&#160; pes_header_data_bytes_ = *read_ptr;</div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>&#160; --pes_packet_bytes_;</div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>&#160; <span class="keywordflow">if</span> (pes_flags_2_ &amp; kPesOptPts) {</div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>&#160; parse_state_ = Pts1;</div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>&#160; parse_state_ = PesHeaderData;</div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>&#160; }</div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>&#160; <span class="keywordflow">case</span> Pts1:</div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>&#160; timestamp_ = (*read_ptr &amp; 0x0E);</div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>&#160; --pes_header_data_bytes_;</div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>&#160; --pes_packet_bytes_;</div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>&#160; parse_state_ = Pts2;</div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>&#160; <span class="keywordflow">case</span> Pts2:</div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>&#160; timestamp_ &lt;&lt;= 7;</div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>&#160; timestamp_ |= *read_ptr;</div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>&#160; --pes_header_data_bytes_;</div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>&#160; --pes_packet_bytes_;</div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>&#160; parse_state_ = Pts3;</div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>&#160; <span class="keywordflow">case</span> Pts3:</div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>&#160; timestamp_ &lt;&lt;= 7;</div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>&#160; timestamp_ |= *read_ptr &gt;&gt; 1;</div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>&#160; --pes_header_data_bytes_;</div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>&#160; --pes_packet_bytes_;</div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>&#160; parse_state_ = Pts4;</div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>&#160; <span class="keywordflow">case</span> Pts4:</div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>&#160; timestamp_ &lt;&lt;= 8;</div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>&#160; timestamp_ |= *read_ptr;</div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>&#160; --pes_header_data_bytes_;</div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>&#160; --pes_packet_bytes_;</div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>&#160; parse_state_ = Pts5;</div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>&#160; <span class="keywordflow">case</span> Pts5:</div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>&#160; timestamp_ &lt;&lt;= 7;</div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>&#160; timestamp_ |= *read_ptr &gt;&gt; 1;</div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>&#160; pts_ = timestamp_;</div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>&#160; --pes_header_data_bytes_;</div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>&#160; --pes_packet_bytes_;</div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>&#160; <span class="keywordflow">if</span> (pes_flags_2_ &amp; kPesOptDts) {</div>
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>&#160; parse_state_ = Dts1;</div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>&#160; dts_ = pts_;</div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>&#160; parse_state_ = PesHeaderData;</div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>&#160; }</div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>&#160; <span class="keywordflow">case</span> Dts1:</div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>&#160; timestamp_ = (*read_ptr &amp; 0x0E);</div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>&#160; --pes_header_data_bytes_;</div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>&#160; --pes_packet_bytes_;</div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>&#160; parse_state_ = Dts2;</div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>&#160; <span class="keywordflow">case</span> Dts2:</div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>&#160; timestamp_ &lt;&lt;= 7;</div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>&#160; timestamp_ |= *read_ptr;</div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>&#160; --pes_header_data_bytes_;</div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>&#160; --pes_packet_bytes_;</div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>&#160; parse_state_ = Dts3;</div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>&#160; <span class="keywordflow">case</span> Dts3:</div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>&#160; timestamp_ &lt;&lt;= 7;</div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>&#160; timestamp_ |= *read_ptr &gt;&gt; 1;</div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>&#160; --pes_header_data_bytes_;</div>
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>&#160; --pes_packet_bytes_;</div>
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>&#160; parse_state_ = Dts4;</div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>&#160; <span class="keywordflow">case</span> Dts4:</div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>&#160; timestamp_ &lt;&lt;= 8;</div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>&#160; timestamp_ |= *read_ptr;</div>
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>&#160; --pes_header_data_bytes_;</div>
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>&#160; --pes_packet_bytes_;</div>
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>&#160; parse_state_ = Dts5;</div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>&#160; <span class="keywordflow">case</span> Dts5:</div>
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>&#160; timestamp_ &lt;&lt;= 7;</div>
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>&#160; timestamp_ |= *read_ptr &gt;&gt; 1;</div>
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>&#160; dts_ = timestamp_;</div>
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>&#160; --pes_header_data_bytes_;</div>
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>&#160; --pes_packet_bytes_;</div>
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>&#160; parse_state_ = PesHeaderData;</div>
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>&#160; <span class="keywordflow">case</span> PesHeaderData:</div>
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>&#160; num_bytes = end - read_ptr;</div>
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>&#160; <span class="keywordflow">if</span> (num_bytes &gt;= pes_header_data_bytes_) {</div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>&#160; num_bytes = pes_header_data_bytes_;</div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>&#160; parse_state_ = PesPayload;</div>
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>&#160; }</div>
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>&#160; pes_header_data_bytes_ -= num_bytes;</div>
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>&#160; pes_packet_bytes_ -= num_bytes;</div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>&#160; read_ptr += num_bytes;</div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>&#160; <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>&#160; <span class="keywordflow">case</span> PesPayload:</div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>&#160; <span class="keywordflow">switch</span> (pes_stream_id_) {</div>
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>&#160; <span class="keywordflow">case</span> kPsmStreamId:</div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>&#160; psm_data_.clear();</div>
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>&#160; parse_state_ = PsmPayload;</div>
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>&#160; <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>&#160; <span class="keywordflow">case</span> kPaddingStreamId:</div>
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>&#160; parse_state_ = Padding;</div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>&#160; <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>&#160; <span class="keywordflow">case</span> kEcmStreamId:</div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>&#160; ecm_.clear();</div>
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>&#160; parse_state_ = EcmPayload;</div>
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>&#160; <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>&#160; <span class="keywordflow">case</span> kIndexStreamId:</div>
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>&#160; parse_state_ = IndexPayload;</div>
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span>&#160; <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>&#160; <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>&#160; <span class="keywordflow">if</span> (!DemuxNextPes(<span class="keyword">false</span>)) {</div>
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>&#160; }</div>
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>&#160; parse_state_ = EsPayload;</div>
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>&#160; }</div>
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>&#160; <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>&#160; <span class="keywordflow">case</span> PsmPayload:</div>
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>&#160; num_bytes = end - read_ptr;</div>
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>&#160; <span class="keywordflow">if</span> (num_bytes &gt;= pes_packet_bytes_) {</div>
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>&#160; num_bytes = pes_packet_bytes_;</div>
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span>&#160; parse_state_ = StartCode1;</div>
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>&#160; }</div>
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>&#160; <span class="keywordflow">if</span> (num_bytes &gt; 0) {</div>
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>&#160; pes_packet_bytes_ -= num_bytes;</div>
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span>&#160; prev_size = psm_data_.size();</div>
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>&#160; psm_data_.resize(prev_size + num_bytes);</div>
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span>&#160; memcpy(&amp;psm_data_[prev_size], read_ptr, num_bytes);</div>
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>&#160; }</div>
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span>&#160; read_ptr += num_bytes;</div>
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>&#160; <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span>&#160; <span class="keywordflow">case</span> EcmPayload:</div>
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>&#160; num_bytes = end - read_ptr;</div>
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span>&#160; <span class="keywordflow">if</span> (num_bytes &gt;= pes_packet_bytes_) {</div>
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span>&#160; num_bytes = pes_packet_bytes_;</div>
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span>&#160; parse_state_ = StartCode1;</div>
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span>&#160; }</div>
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>&#160; <span class="keywordflow">if</span> (num_bytes &gt; 0) {</div>
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span>&#160; pes_packet_bytes_ -= num_bytes;</div>
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>&#160; prev_size = ecm_.size();</div>
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span>&#160; ecm_.resize(prev_size + num_bytes);</div>
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span>&#160; memcpy(&amp;ecm_[prev_size], read_ptr, num_bytes);</div>
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>&#160; }</div>
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>&#160; <span class="keywordflow">if</span> ((pes_packet_bytes_ == 0) &amp;&amp; !ecm_.empty()) {</div>
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>&#160; <span class="keywordflow">if</span> (!ProcessEcm()) {</div>
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span>&#160; <span class="keywordflow">return</span>(<span class="keyword">false</span>);</div>
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span>&#160; }</div>
<div class="line"><a name="l00416"></a><span class="lineno"> 416</span>&#160; }</div>
<div class="line"><a name="l00417"></a><span class="lineno"> 417</span>&#160; read_ptr += num_bytes;</div>
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span>&#160; <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00419"></a><span class="lineno"> 419</span>&#160; <span class="keywordflow">case</span> IndexPayload:</div>
<div class="line"><a name="l00420"></a><span class="lineno"> 420</span>&#160; num_bytes = end - read_ptr;</div>
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>&#160; <span class="keywordflow">if</span> (num_bytes &gt;= pes_packet_bytes_) {</div>
<div class="line"><a name="l00422"></a><span class="lineno"> 422</span>&#160; num_bytes = pes_packet_bytes_;</div>
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span>&#160; parse_state_ = StartCode1;</div>
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span>&#160; }</div>
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span>&#160; <span class="keywordflow">if</span> (num_bytes &gt; 0) {</div>
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span>&#160; pes_packet_bytes_ -= num_bytes;</div>
<div class="line"><a name="l00427"></a><span class="lineno"> 427</span>&#160; prev_size = index_data_.size();</div>
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span>&#160; index_data_.resize(prev_size + num_bytes);</div>
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>&#160; memcpy(&amp;index_data_[prev_size], read_ptr, num_bytes);</div>
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span>&#160; }</div>
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span>&#160; <span class="keywordflow">if</span> (pes_packet_bytes_ == 0 &amp;&amp; !index_data_.empty()) {</div>
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>&#160; <span class="keywordflow">if</span> (!metadata_is_complete_) {</div>
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>&#160; <span class="keywordflow">if</span> (!ParseIndexEntry()) {</div>
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span>&#160; }</div>
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span>&#160; }</div>
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>&#160; }</div>
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span>&#160; read_ptr += num_bytes;</div>
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span>&#160; <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>&#160; <span class="keywordflow">case</span> EsPayload:</div>
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span>&#160; num_bytes = end - read_ptr;</div>
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span>&#160; <span class="keywordflow">if</span> (num_bytes &gt;= pes_packet_bytes_) {</div>
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>&#160; num_bytes = pes_packet_bytes_;</div>
<div class="line"><a name="l00444"></a><span class="lineno"> 444</span>&#160; parse_state_ = StartCode1;</div>
<div class="line"><a name="l00445"></a><span class="lineno"> 445</span>&#160; }</div>
<div class="line"><a name="l00446"></a><span class="lineno"> 446</span>&#160; pes_packet_bytes_ -= num_bytes;</div>
<div class="line"><a name="l00447"></a><span class="lineno"> 447</span>&#160; <span class="keywordflow">if</span> (pes_stream_id_ != kV2MetadataStreamId) {</div>
<div class="line"><a name="l00448"></a><span class="lineno"> 448</span>&#160; sample_data_.resize(sample_data_.size() + num_bytes);</div>
<div class="line"><a name="l00449"></a><span class="lineno"> 449</span>&#160; memcpy(&amp;sample_data_[sample_data_.size() - num_bytes], read_ptr,</div>
<div class="line"><a name="l00450"></a><span class="lineno"> 450</span>&#160; num_bytes);</div>
<div class="line"><a name="l00451"></a><span class="lineno"> 451</span>&#160; }</div>
<div class="line"><a name="l00452"></a><span class="lineno"> 452</span>&#160; prev_pes_stream_id_ = pes_stream_id_;</div>
<div class="line"><a name="l00453"></a><span class="lineno"> 453</span>&#160; read_ptr += num_bytes;</div>
<div class="line"><a name="l00454"></a><span class="lineno"> 454</span>&#160; <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00455"></a><span class="lineno"> 455</span>&#160; <span class="keywordflow">case</span> Padding:</div>
<div class="line"><a name="l00456"></a><span class="lineno"> 456</span>&#160; num_bytes = end - read_ptr;</div>
<div class="line"><a name="l00457"></a><span class="lineno"> 457</span>&#160; <span class="keywordflow">if</span> (num_bytes &gt;= pes_packet_bytes_) {</div>
<div class="line"><a name="l00458"></a><span class="lineno"> 458</span>&#160; num_bytes = pes_packet_bytes_;</div>
<div class="line"><a name="l00459"></a><span class="lineno"> 459</span>&#160; parse_state_ = StartCode1;</div>
<div class="line"><a name="l00460"></a><span class="lineno"> 460</span>&#160; }</div>
<div class="line"><a name="l00461"></a><span class="lineno"> 461</span>&#160; pes_packet_bytes_ -= num_bytes;</div>
<div class="line"><a name="l00462"></a><span class="lineno"> 462</span>&#160; read_ptr += num_bytes;</div>
<div class="line"><a name="l00463"></a><span class="lineno"> 463</span>&#160; <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00464"></a><span class="lineno"> 464</span>&#160; <span class="keywordflow">case</span> ProgramEnd:</div>
<div class="line"><a name="l00465"></a><span class="lineno"> 465</span>&#160; parse_state_ = StartCode1;</div>
<div class="line"><a name="l00466"></a><span class="lineno"> 466</span>&#160; metadata_is_complete_ = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00467"></a><span class="lineno"> 467</span>&#160; <span class="keywordflow">if</span> (!DemuxNextPes(<span class="keyword">true</span>)) {</div>
<div class="line"><a name="l00468"></a><span class="lineno"> 468</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00469"></a><span class="lineno"> 469</span>&#160; }</div>
<div class="line"><a name="l00470"></a><span class="lineno"> 470</span>&#160; <span class="keywordflow">if</span> (!Flush()) {</div>
<div class="line"><a name="l00471"></a><span class="lineno"> 471</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00472"></a><span class="lineno"> 472</span>&#160; }</div>
<div class="line"><a name="l00473"></a><span class="lineno"> 473</span>&#160; <span class="comment">// Reset.</span></div>
<div class="line"><a name="l00474"></a><span class="lineno"> 474</span>&#160; dts_ = pts_ = 0;</div>
<div class="line"><a name="l00475"></a><span class="lineno"> 475</span>&#160; parse_state_ = StartCode1;</div>
<div class="line"><a name="l00476"></a><span class="lineno"> 476</span>&#160; prev_media_sample_data_.Reset();</div>
<div class="line"><a name="l00477"></a><span class="lineno"> 477</span>&#160; current_program_id_++;</div>
<div class="line"><a name="l00478"></a><span class="lineno"> 478</span>&#160; ecm_.clear();</div>
<div class="line"><a name="l00479"></a><span class="lineno"> 479</span>&#160; index_data_.clear();</div>
<div class="line"><a name="l00480"></a><span class="lineno"> 480</span>&#160; psm_data_.clear();</div>
<div class="line"><a name="l00481"></a><span class="lineno"> 481</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00482"></a><span class="lineno"> 482</span>&#160; <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00483"></a><span class="lineno"> 483</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00484"></a><span class="lineno"> 484</span>&#160; }</div>
<div class="line"><a name="l00485"></a><span class="lineno"> 485</span>&#160; ++read_ptr;</div>
<div class="line"><a name="l00486"></a><span class="lineno"> 486</span>&#160; }</div>
<div class="line"><a name="l00487"></a><span class="lineno"> 487</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00488"></a><span class="lineno"> 488</span>&#160;}</div>
<div class="line"><a name="l00489"></a><span class="lineno"> 489</span>&#160;</div>
<div class="line"><a name="l00490"></a><span class="lineno"> 490</span>&#160;<span class="keywordtype">bool</span> WvmMediaParser::EmitLastSample(</div>
<div class="line"><a name="l00491"></a><span class="lineno"> 491</span>&#160; uint32_t stream_id,</div>
<div class="line"><a name="l00492"></a><span class="lineno"> 492</span>&#160; <span class="keyword">const</span> std::shared_ptr&lt;MediaSample&gt;&amp; new_sample) {</div>
<div class="line"><a name="l00493"></a><span class="lineno"> 493</span>&#160; std::string key = base::UintToString(current_program_id_)</div>
<div class="line"><a name="l00494"></a><span class="lineno"> 494</span>&#160; .append(<span class="stringliteral">&quot;:&quot;</span>)</div>
<div class="line"><a name="l00495"></a><span class="lineno"> 495</span>&#160; .append(base::UintToString(stream_id));</div>
<div class="line"><a name="l00496"></a><span class="lineno"> 496</span>&#160; std::map&lt;std::string, uint32_t&gt;::iterator it =</div>
<div class="line"><a name="l00497"></a><span class="lineno"> 497</span>&#160; program_demux_stream_map_.find(key);</div>
<div class="line"><a name="l00498"></a><span class="lineno"> 498</span>&#160; <span class="keywordflow">if</span> (it == program_demux_stream_map_.end())</div>
<div class="line"><a name="l00499"></a><span class="lineno"> 499</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00500"></a><span class="lineno"> 500</span>&#160; <span class="keywordflow">return</span> EmitSample(stream_id, (*it).second, new_sample, <span class="keyword">true</span>);</div>
<div class="line"><a name="l00501"></a><span class="lineno"> 501</span>&#160;}</div>
<div class="line"><a name="l00502"></a><span class="lineno"> 502</span>&#160;</div>
<div class="line"><a name="l00503"></a><span class="lineno"> 503</span>&#160;<span class="keywordtype">bool</span> WvmMediaParser::EmitPendingSamples() {</div>
<div class="line"><a name="l00504"></a><span class="lineno"> 504</span>&#160; <span class="comment">// Emit queued samples which were built when not initialized.</span></div>
<div class="line"><a name="l00505"></a><span class="lineno"> 505</span>&#160; <span class="keywordflow">while</span> (!media_sample_queue_.empty()) {</div>
<div class="line"><a name="l00506"></a><span class="lineno"> 506</span>&#160; DemuxStreamIdMediaSample&amp; demux_stream_media_sample =</div>
<div class="line"><a name="l00507"></a><span class="lineno"> 507</span>&#160; media_sample_queue_.front();</div>
<div class="line"><a name="l00508"></a><span class="lineno"> 508</span>&#160; <span class="keywordflow">if</span> (!EmitSample(demux_stream_media_sample.parsed_audio_or_video_stream_id,</div>
<div class="line"><a name="l00509"></a><span class="lineno"> 509</span>&#160; demux_stream_media_sample.demux_stream_id,</div>
<div class="line"><a name="l00510"></a><span class="lineno"> 510</span>&#160; demux_stream_media_sample.media_sample,</div>
<div class="line"><a name="l00511"></a><span class="lineno"> 511</span>&#160; <span class="keyword">false</span>)) {</div>
<div class="line"><a name="l00512"></a><span class="lineno"> 512</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00513"></a><span class="lineno"> 513</span>&#160; }</div>
<div class="line"><a name="l00514"></a><span class="lineno"> 514</span>&#160; media_sample_queue_.pop_front();</div>
<div class="line"><a name="l00515"></a><span class="lineno"> 515</span>&#160; }</div>
<div class="line"><a name="l00516"></a><span class="lineno"> 516</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00517"></a><span class="lineno"> 517</span>&#160;}</div>
<div class="line"><a name="l00518"></a><span class="lineno"> 518</span>&#160;</div>
<div class="line"><a name="l00519"></a><span class="lineno"><a class="line" href="../../dc/d18/classshaka_1_1media_1_1wvm_1_1WvmMediaParser.html#ac5680e3bd6cdb07fd65af3f39fce999a"> 519</a></span>&#160;<span class="keywordtype">bool</span> WvmMediaParser::Flush() {</div>
<div class="line"><a name="l00520"></a><span class="lineno"> 520</span>&#160; <span class="comment">// Flush the last audio and video sample for current program.</span></div>
<div class="line"><a name="l00521"></a><span class="lineno"> 521</span>&#160; <span class="comment">// Reset the streamID when successfully emitted.</span></div>
<div class="line"><a name="l00522"></a><span class="lineno"> 522</span>&#160; <span class="keywordflow">if</span> (prev_media_sample_data_.audio_sample != NULL) {</div>
<div class="line"><a name="l00523"></a><span class="lineno"> 523</span>&#160; <span class="keywordflow">if</span> (!EmitLastSample(prev_pes_stream_id_,</div>
<div class="line"><a name="l00524"></a><span class="lineno"> 524</span>&#160; prev_media_sample_data_.audio_sample)) {</div>
<div class="line"><a name="l00525"></a><span class="lineno"> 525</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Did not emit last sample for audio stream with ID = &quot;</span></div>
<div class="line"><a name="l00526"></a><span class="lineno"> 526</span>&#160; &lt;&lt; prev_pes_stream_id_;</div>
<div class="line"><a name="l00527"></a><span class="lineno"> 527</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00528"></a><span class="lineno"> 528</span>&#160; }</div>
<div class="line"><a name="l00529"></a><span class="lineno"> 529</span>&#160; }</div>
<div class="line"><a name="l00530"></a><span class="lineno"> 530</span>&#160; <span class="keywordflow">if</span> (prev_media_sample_data_.video_sample != NULL) {</div>
<div class="line"><a name="l00531"></a><span class="lineno"> 531</span>&#160; <span class="keywordflow">if</span> (!EmitLastSample(prev_pes_stream_id_,</div>
<div class="line"><a name="l00532"></a><span class="lineno"> 532</span>&#160; prev_media_sample_data_.video_sample)) {</div>
<div class="line"><a name="l00533"></a><span class="lineno"> 533</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Did not emit last sample for video stream with ID = &quot;</span></div>
<div class="line"><a name="l00534"></a><span class="lineno"> 534</span>&#160; &lt;&lt; prev_pes_stream_id_;</div>
<div class="line"><a name="l00535"></a><span class="lineno"> 535</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00536"></a><span class="lineno"> 536</span>&#160; }</div>
<div class="line"><a name="l00537"></a><span class="lineno"> 537</span>&#160; }</div>
<div class="line"><a name="l00538"></a><span class="lineno"> 538</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00539"></a><span class="lineno"> 539</span>&#160;}</div>
<div class="line"><a name="l00540"></a><span class="lineno"> 540</span>&#160;</div>
<div class="line"><a name="l00541"></a><span class="lineno"> 541</span>&#160;<span class="keywordtype">bool</span> WvmMediaParser::ParseIndexEntry() {</div>
<div class="line"><a name="l00542"></a><span class="lineno"> 542</span>&#160; <span class="comment">// Do not parse index entry at the beginning of any track *after* the first</span></div>
<div class="line"><a name="l00543"></a><span class="lineno"> 543</span>&#160; <span class="comment">// track.</span></div>
<div class="line"><a name="l00544"></a><span class="lineno"> 544</span>&#160; <span class="keywordflow">if</span> (current_program_id_ &gt; 0) {</div>
<div class="line"><a name="l00545"></a><span class="lineno"> 545</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00546"></a><span class="lineno"> 546</span>&#160; }</div>
<div class="line"><a name="l00547"></a><span class="lineno"> 547</span>&#160; uint32_t index_size = 0;</div>
<div class="line"><a name="l00548"></a><span class="lineno"> 548</span>&#160; <span class="keywordflow">if</span> (index_data_.size() &lt; kIndexVersion4HeaderSize) {</div>
<div class="line"><a name="l00549"></a><span class="lineno"> 549</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00550"></a><span class="lineno"> 550</span>&#160; }</div>
<div class="line"><a name="l00551"></a><span class="lineno"> 551</span>&#160;</div>
<div class="line"><a name="l00552"></a><span class="lineno"> 552</span>&#160; <span class="keyword">const</span> uint8_t* read_ptr = index_data_.data();</div>
<div class="line"><a name="l00553"></a><span class="lineno"> 553</span>&#160; <span class="keywordflow">if</span> (ntohlFromBuffer(read_ptr) != kIndexMagic) {</div>
<div class="line"><a name="l00554"></a><span class="lineno"> 554</span>&#160; index_data_.clear();</div>
<div class="line"><a name="l00555"></a><span class="lineno"> 555</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00556"></a><span class="lineno"> 556</span>&#160; }</div>
<div class="line"><a name="l00557"></a><span class="lineno"> 557</span>&#160; read_ptr += 4;</div>
<div class="line"><a name="l00558"></a><span class="lineno"> 558</span>&#160;</div>
<div class="line"><a name="l00559"></a><span class="lineno"> 559</span>&#160; uint32_t version = ntohlFromBuffer(read_ptr);</div>
<div class="line"><a name="l00560"></a><span class="lineno"> 560</span>&#160; read_ptr += 4;</div>
<div class="line"><a name="l00561"></a><span class="lineno"> 561</span>&#160; <span class="keywordflow">if</span> (version == kVersion4) {</div>
<div class="line"><a name="l00562"></a><span class="lineno"> 562</span>&#160; index_size = kIndexVersion4HeaderSize + ntohlFromBuffer(read_ptr);</div>
<div class="line"><a name="l00563"></a><span class="lineno"> 563</span>&#160; <span class="keywordflow">if</span> (index_data_.size() &lt; index_size) {</div>
<div class="line"><a name="l00564"></a><span class="lineno"> 564</span>&#160; <span class="comment">// We do not yet have the full index. Keep accumulating index data.</span></div>
<div class="line"><a name="l00565"></a><span class="lineno"> 565</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00566"></a><span class="lineno"> 566</span>&#160; }</div>
<div class="line"><a name="l00567"></a><span class="lineno"> 567</span>&#160; read_ptr += <span class="keyword">sizeof</span>(uint32_t);</div>
<div class="line"><a name="l00568"></a><span class="lineno"> 568</span>&#160;</div>
<div class="line"><a name="l00569"></a><span class="lineno"> 569</span>&#160; <span class="comment">// Index metadata</span></div>
<div class="line"><a name="l00570"></a><span class="lineno"> 570</span>&#160; uint32_t index_metadata_max_size = index_size - kIndexVersion4HeaderSize;</div>
<div class="line"><a name="l00571"></a><span class="lineno"> 571</span>&#160; <span class="keywordflow">if</span> (index_metadata_max_size &lt; <span class="keyword">sizeof</span>(uint8_t)) {</div>
<div class="line"><a name="l00572"></a><span class="lineno"> 572</span>&#160; index_data_.clear();</div>
<div class="line"><a name="l00573"></a><span class="lineno"> 573</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00574"></a><span class="lineno"> 574</span>&#160; }</div>
<div class="line"><a name="l00575"></a><span class="lineno"> 575</span>&#160;</div>
<div class="line"><a name="l00576"></a><span class="lineno"> 576</span>&#160; uint64_t track_duration = 0;</div>
<div class="line"><a name="l00577"></a><span class="lineno"> 577</span>&#160; int16_t trick_play_rate = 0;</div>
<div class="line"><a name="l00578"></a><span class="lineno"> 578</span>&#160; uint32_t sampling_frequency = kDefaultSamplingFrequency;</div>
<div class="line"><a name="l00579"></a><span class="lineno"> 579</span>&#160; uint32_t time_scale = kMpeg2ClockRate;</div>
<div class="line"><a name="l00580"></a><span class="lineno"> 580</span>&#160; uint16_t video_width = 0;</div>
<div class="line"><a name="l00581"></a><span class="lineno"> 581</span>&#160; uint16_t video_height = 0;</div>
<div class="line"><a name="l00582"></a><span class="lineno"> 582</span>&#160; uint32_t pixel_width = 0;</div>
<div class="line"><a name="l00583"></a><span class="lineno"> 583</span>&#160; uint32_t pixel_height = 0;</div>
<div class="line"><a name="l00584"></a><span class="lineno"> 584</span>&#160; uint8_t nalu_length_size = kNaluLengthSize;</div>
<div class="line"><a name="l00585"></a><span class="lineno"> 585</span>&#160; uint8_t num_channels = 0;</div>
<div class="line"><a name="l00586"></a><span class="lineno"> 586</span>&#160; <span class="keywordtype">int</span> audio_pes_stream_id = 0;</div>
<div class="line"><a name="l00587"></a><span class="lineno"> 587</span>&#160; <span class="keywordtype">int</span> video_pes_stream_id = 0;</div>
<div class="line"><a name="l00588"></a><span class="lineno"> 588</span>&#160; <span class="keywordtype">bool</span> has_video = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00589"></a><span class="lineno"> 589</span>&#160; <span class="keywordtype">bool</span> has_audio = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00590"></a><span class="lineno"> 590</span>&#160; std::vector&lt;uint8_t&gt; audio_codec_config;</div>
<div class="line"><a name="l00591"></a><span class="lineno"> 591</span>&#160; std::vector&lt;uint8_t&gt; video_codec_config;</div>
<div class="line"><a name="l00592"></a><span class="lineno"> 592</span>&#160; uint8_t num_index_entries = *read_ptr;</div>
<div class="line"><a name="l00593"></a><span class="lineno"> 593</span>&#160; ++read_ptr;</div>
<div class="line"><a name="l00594"></a><span class="lineno"> 594</span>&#160; --index_metadata_max_size;</div>
<div class="line"><a name="l00595"></a><span class="lineno"> 595</span>&#160;</div>
<div class="line"><a name="l00596"></a><span class="lineno"> 596</span>&#160; <span class="keywordflow">for</span> (uint8_t idx = 0; idx &lt; num_index_entries; ++idx) {</div>
<div class="line"><a name="l00597"></a><span class="lineno"> 597</span>&#160; <span class="keywordflow">if</span> (index_metadata_max_size &lt; (2 * <span class="keyword">sizeof</span>(uint8_t)) + <span class="keyword">sizeof</span>(uint32_t)) {</div>
<div class="line"><a name="l00598"></a><span class="lineno"> 598</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00599"></a><span class="lineno"> 599</span>&#160; }</div>
<div class="line"><a name="l00600"></a><span class="lineno"> 600</span>&#160; uint8_t tag = *read_ptr;</div>
<div class="line"><a name="l00601"></a><span class="lineno"> 601</span>&#160; ++read_ptr;</div>
<div class="line"><a name="l00602"></a><span class="lineno"> 602</span>&#160; uint8_t type = *read_ptr;</div>
<div class="line"><a name="l00603"></a><span class="lineno"> 603</span>&#160; ++read_ptr;</div>
<div class="line"><a name="l00604"></a><span class="lineno"> 604</span>&#160; uint32_t length = ntohlFromBuffer(read_ptr);</div>
<div class="line"><a name="l00605"></a><span class="lineno"> 605</span>&#160; read_ptr += <span class="keyword">sizeof</span>(uint32_t);</div>
<div class="line"><a name="l00606"></a><span class="lineno"> 606</span>&#160; index_metadata_max_size -= (2 * <span class="keyword">sizeof</span>(uint8_t)) + <span class="keyword">sizeof</span>(uint32_t);</div>
<div class="line"><a name="l00607"></a><span class="lineno"> 607</span>&#160; <span class="keywordflow">if</span> (index_metadata_max_size &lt; length) {</div>
<div class="line"><a name="l00608"></a><span class="lineno"> 608</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00609"></a><span class="lineno"> 609</span>&#160; }</div>
<div class="line"><a name="l00610"></a><span class="lineno"> 610</span>&#160; int64_t value = 0;</div>
<div class="line"><a name="l00611"></a><span class="lineno"> 611</span>&#160; Tag tagtype = Unset;</div>
<div class="line"><a name="l00612"></a><span class="lineno"> 612</span>&#160; std::vector&lt;uint8_t&gt; binary_data;</div>
<div class="line"><a name="l00613"></a><span class="lineno"> 613</span>&#160; <span class="keywordflow">switch</span> (Type(type)) {</div>
<div class="line"><a name="l00614"></a><span class="lineno"> 614</span>&#160; <span class="keywordflow">case</span> Type_uint8:</div>
<div class="line"><a name="l00615"></a><span class="lineno"> 615</span>&#160; <span class="keywordflow">if</span> (length == <span class="keyword">sizeof</span>(uint8_t)) {</div>
<div class="line"><a name="l00616"></a><span class="lineno"> 616</span>&#160; tagtype = GetTag(tag, length, read_ptr, &amp;value);</div>
<div class="line"><a name="l00617"></a><span class="lineno"> 617</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00618"></a><span class="lineno"> 618</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00619"></a><span class="lineno"> 619</span>&#160; }</div>
<div class="line"><a name="l00620"></a><span class="lineno"> 620</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00621"></a><span class="lineno"> 621</span>&#160; <span class="keywordflow">case</span> Type_int8:</div>
<div class="line"><a name="l00622"></a><span class="lineno"> 622</span>&#160; <span class="keywordflow">if</span> (length == <span class="keyword">sizeof</span>(int8_t)) {</div>
<div class="line"><a name="l00623"></a><span class="lineno"> 623</span>&#160; tagtype = GetTag(tag, length, read_ptr, &amp;value);</div>
<div class="line"><a name="l00624"></a><span class="lineno"> 624</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00625"></a><span class="lineno"> 625</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00626"></a><span class="lineno"> 626</span>&#160; }</div>
<div class="line"><a name="l00627"></a><span class="lineno"> 627</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00628"></a><span class="lineno"> 628</span>&#160; <span class="keywordflow">case</span> Type_uint16:</div>
<div class="line"><a name="l00629"></a><span class="lineno"> 629</span>&#160; <span class="keywordflow">if</span> (length == <span class="keyword">sizeof</span>(uint16_t)) {</div>
<div class="line"><a name="l00630"></a><span class="lineno"> 630</span>&#160; tagtype = GetTag(tag, length, read_ptr, &amp;value);</div>
<div class="line"><a name="l00631"></a><span class="lineno"> 631</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00632"></a><span class="lineno"> 632</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00633"></a><span class="lineno"> 633</span>&#160; }</div>
<div class="line"><a name="l00634"></a><span class="lineno"> 634</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00635"></a><span class="lineno"> 635</span>&#160; <span class="keywordflow">case</span> Type_int16:</div>
<div class="line"><a name="l00636"></a><span class="lineno"> 636</span>&#160; <span class="keywordflow">if</span> (length == <span class="keyword">sizeof</span>(int16_t)) {</div>
<div class="line"><a name="l00637"></a><span class="lineno"> 637</span>&#160; tagtype = GetTag(tag, length, read_ptr, &amp;value);</div>
<div class="line"><a name="l00638"></a><span class="lineno"> 638</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00639"></a><span class="lineno"> 639</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00640"></a><span class="lineno"> 640</span>&#160; }</div>
<div class="line"><a name="l00641"></a><span class="lineno"> 641</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00642"></a><span class="lineno"> 642</span>&#160; <span class="keywordflow">case</span> Type_uint32:</div>
<div class="line"><a name="l00643"></a><span class="lineno"> 643</span>&#160; <span class="keywordflow">if</span> (length == <span class="keyword">sizeof</span>(uint32_t)) {</div>
<div class="line"><a name="l00644"></a><span class="lineno"> 644</span>&#160; tagtype = GetTag(tag, length, read_ptr, &amp;value);</div>
<div class="line"><a name="l00645"></a><span class="lineno"> 645</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00646"></a><span class="lineno"> 646</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00647"></a><span class="lineno"> 647</span>&#160; }</div>
<div class="line"><a name="l00648"></a><span class="lineno"> 648</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00649"></a><span class="lineno"> 649</span>&#160; <span class="keywordflow">case</span> Type_int32:</div>
<div class="line"><a name="l00650"></a><span class="lineno"> 650</span>&#160; <span class="keywordflow">if</span> (length == <span class="keyword">sizeof</span>(int32_t)) {</div>
<div class="line"><a name="l00651"></a><span class="lineno"> 651</span>&#160; tagtype = GetTag(tag, length, read_ptr, &amp;value);</div>
<div class="line"><a name="l00652"></a><span class="lineno"> 652</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00653"></a><span class="lineno"> 653</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00654"></a><span class="lineno"> 654</span>&#160; }</div>
<div class="line"><a name="l00655"></a><span class="lineno"> 655</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00656"></a><span class="lineno"> 656</span>&#160; <span class="keywordflow">case</span> Type_uint64:</div>
<div class="line"><a name="l00657"></a><span class="lineno"> 657</span>&#160; <span class="keywordflow">if</span> (length == <span class="keyword">sizeof</span>(uint64_t)) {</div>
<div class="line"><a name="l00658"></a><span class="lineno"> 658</span>&#160; tagtype = GetTag(tag, length, read_ptr, &amp;value);</div>
<div class="line"><a name="l00659"></a><span class="lineno"> 659</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00660"></a><span class="lineno"> 660</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00661"></a><span class="lineno"> 661</span>&#160; }</div>
<div class="line"><a name="l00662"></a><span class="lineno"> 662</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00663"></a><span class="lineno"> 663</span>&#160; <span class="keywordflow">case</span> Type_int64:</div>
<div class="line"><a name="l00664"></a><span class="lineno"> 664</span>&#160; <span class="keywordflow">if</span> (length == <span class="keyword">sizeof</span>(int64_t)) {</div>
<div class="line"><a name="l00665"></a><span class="lineno"> 665</span>&#160; tagtype = GetTag(tag, length, read_ptr, &amp;value);</div>
<div class="line"><a name="l00666"></a><span class="lineno"> 666</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00667"></a><span class="lineno"> 667</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00668"></a><span class="lineno"> 668</span>&#160; }</div>
<div class="line"><a name="l00669"></a><span class="lineno"> 669</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00670"></a><span class="lineno"> 670</span>&#160; <span class="keywordflow">case</span> Type_string:</div>
<div class="line"><a name="l00671"></a><span class="lineno"> 671</span>&#160; <span class="keywordflow">case</span> Type_BinaryData:</div>
<div class="line"><a name="l00672"></a><span class="lineno"> 672</span>&#160; binary_data.assign(read_ptr, read_ptr + length);</div>
<div class="line"><a name="l00673"></a><span class="lineno"> 673</span>&#160; tagtype = Tag(tag);</div>
<div class="line"><a name="l00674"></a><span class="lineno"> 674</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00675"></a><span class="lineno"> 675</span>&#160; <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00676"></a><span class="lineno"> 676</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00677"></a><span class="lineno"> 677</span>&#160; }</div>
<div class="line"><a name="l00678"></a><span class="lineno"> 678</span>&#160;</div>
<div class="line"><a name="l00679"></a><span class="lineno"> 679</span>&#160; <span class="keywordflow">switch</span> (tagtype) {</div>
<div class="line"><a name="l00680"></a><span class="lineno"> 680</span>&#160; <span class="keywordflow">case</span> TrackDuration:</div>
<div class="line"><a name="l00681"></a><span class="lineno"> 681</span>&#160; track_duration = value;</div>
<div class="line"><a name="l00682"></a><span class="lineno"> 682</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00683"></a><span class="lineno"> 683</span>&#160; <span class="keywordflow">case</span> TrackTrickPlayRate:</div>
<div class="line"><a name="l00684"></a><span class="lineno"> 684</span>&#160; trick_play_rate = value;</div>
<div class="line"><a name="l00685"></a><span class="lineno"> 685</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00686"></a><span class="lineno"> 686</span>&#160; <span class="keywordflow">case</span> VideoStreamId:</div>
<div class="line"><a name="l00687"></a><span class="lineno"> 687</span>&#160; video_pes_stream_id = value;</div>
<div class="line"><a name="l00688"></a><span class="lineno"> 688</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00689"></a><span class="lineno"> 689</span>&#160; <span class="keywordflow">case</span> AudioStreamId:</div>
<div class="line"><a name="l00690"></a><span class="lineno"> 690</span>&#160; audio_pes_stream_id = value;</div>
<div class="line"><a name="l00691"></a><span class="lineno"> 691</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00692"></a><span class="lineno"> 692</span>&#160; <span class="keywordflow">case</span> VideoWidth:</div>
<div class="line"><a name="l00693"></a><span class="lineno"> 693</span>&#160; video_width = (uint16_t)value;</div>
<div class="line"><a name="l00694"></a><span class="lineno"> 694</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00695"></a><span class="lineno"> 695</span>&#160; <span class="keywordflow">case</span> VideoHeight:</div>
<div class="line"><a name="l00696"></a><span class="lineno"> 696</span>&#160; video_height = (uint16_t)value;</div>
<div class="line"><a name="l00697"></a><span class="lineno"> 697</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00698"></a><span class="lineno"> 698</span>&#160; <span class="keywordflow">case</span> AudioNumChannels:</div>
<div class="line"><a name="l00699"></a><span class="lineno"> 699</span>&#160; num_channels = (uint8_t)value;</div>
<div class="line"><a name="l00700"></a><span class="lineno"> 700</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00701"></a><span class="lineno"> 701</span>&#160; <span class="keywordflow">case</span> VideoType:</div>
<div class="line"><a name="l00702"></a><span class="lineno"> 702</span>&#160; has_video = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00703"></a><span class="lineno"> 703</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00704"></a><span class="lineno"> 704</span>&#160; <span class="keywordflow">case</span> AudioType:</div>
<div class="line"><a name="l00705"></a><span class="lineno"> 705</span>&#160; has_audio = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00706"></a><span class="lineno"> 706</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00707"></a><span class="lineno"> 707</span>&#160; <span class="keywordflow">case</span> VideoPixelWidth:</div>
<div class="line"><a name="l00708"></a><span class="lineno"> 708</span>&#160; pixel_width = <span class="keyword">static_cast&lt;</span>uint32_t<span class="keyword">&gt;</span>(value);</div>
<div class="line"><a name="l00709"></a><span class="lineno"> 709</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00710"></a><span class="lineno"> 710</span>&#160; <span class="keywordflow">case</span> VideoPixelHeight:</div>
<div class="line"><a name="l00711"></a><span class="lineno"> 711</span>&#160; pixel_height = <span class="keyword">static_cast&lt;</span>uint32_t<span class="keyword">&gt;</span>(value);</div>
<div class="line"><a name="l00712"></a><span class="lineno"> 712</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00713"></a><span class="lineno"> 713</span>&#160; <span class="keywordflow">case</span> Audio_EsDescriptor: {</div>
<div class="line"><a name="l00714"></a><span class="lineno"> 714</span>&#160; ESDescriptor descriptor;</div>
<div class="line"><a name="l00715"></a><span class="lineno"> 715</span>&#160; <span class="keywordflow">if</span> (!descriptor.Parse(binary_data)) {</div>
<div class="line"><a name="l00716"></a><span class="lineno"> 716</span>&#160; LOG(ERROR) &lt;&lt;</div>
<div class="line"><a name="l00717"></a><span class="lineno"> 717</span>&#160; <span class="stringliteral">&quot;Could not extract AudioSpecificConfig from ES_Descriptor&quot;</span>;</div>
<div class="line"><a name="l00718"></a><span class="lineno"> 718</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00719"></a><span class="lineno"> 719</span>&#160; }</div>
<div class="line"><a name="l00720"></a><span class="lineno"> 720</span>&#160; audio_codec_config = descriptor.decoder_specific_info();</div>
<div class="line"><a name="l00721"></a><span class="lineno"> 721</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00722"></a><span class="lineno"> 722</span>&#160; }</div>
<div class="line"><a name="l00723"></a><span class="lineno"> 723</span>&#160; <span class="keywordflow">case</span> Audio_EC3SpecificData:</div>
<div class="line"><a name="l00724"></a><span class="lineno"> 724</span>&#160; <span class="keywordflow">case</span> Audio_DtsSpecificData:</div>
<div class="line"><a name="l00725"></a><span class="lineno"> 725</span>&#160; <span class="keywordflow">case</span> Audio_AC3SpecificData:</div>
<div class="line"><a name="l00726"></a><span class="lineno"> 726</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Audio type not supported.&quot;</span>;</div>
<div class="line"><a name="l00727"></a><span class="lineno"> 727</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00728"></a><span class="lineno"> 728</span>&#160; <span class="keywordflow">case</span> Video_AVCDecoderConfigurationRecord:</div>
<div class="line"><a name="l00729"></a><span class="lineno"> 729</span>&#160; video_codec_config = binary_data;</div>
<div class="line"><a name="l00730"></a><span class="lineno"> 730</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00731"></a><span class="lineno"> 731</span>&#160; <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00732"></a><span class="lineno"> 732</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00733"></a><span class="lineno"> 733</span>&#160; }</div>
<div class="line"><a name="l00734"></a><span class="lineno"> 734</span>&#160;</div>
<div class="line"><a name="l00735"></a><span class="lineno"> 735</span>&#160; read_ptr += length;</div>
<div class="line"><a name="l00736"></a><span class="lineno"> 736</span>&#160; index_metadata_max_size -= length;</div>
<div class="line"><a name="l00737"></a><span class="lineno"> 737</span>&#160; }</div>
<div class="line"><a name="l00738"></a><span class="lineno"> 738</span>&#160; <span class="comment">// End Index metadata</span></div>
<div class="line"><a name="l00739"></a><span class="lineno"> 739</span>&#160; index_size = read_ptr - index_data_.data();</div>
<div class="line"><a name="l00740"></a><span class="lineno"> 740</span>&#160;</div>
<div class="line"><a name="l00741"></a><span class="lineno"> 741</span>&#160; <span class="keywordflow">if</span> (has_video) {</div>
<div class="line"><a name="l00742"></a><span class="lineno"> 742</span>&#160; Codec video_codec = kCodecH264;</div>
<div class="line"><a name="l00743"></a><span class="lineno"> 743</span>&#160; stream_infos_.emplace_back(<span class="keyword">new</span> VideoStreamInfo(</div>
<div class="line"><a name="l00744"></a><span class="lineno"> 744</span>&#160; stream_id_count_, time_scale, track_duration, video_codec,</div>
<div class="line"><a name="l00745"></a><span class="lineno"> 745</span>&#160; std::string(), video_codec_config.data(), video_codec_config.size(),</div>
<div class="line"><a name="l00746"></a><span class="lineno"> 746</span>&#160; video_width, video_height, pixel_width, pixel_height, trick_play_rate,</div>
<div class="line"><a name="l00747"></a><span class="lineno"> 747</span>&#160; nalu_length_size, std::string(), <span class="keyword">true</span>));</div>
<div class="line"><a name="l00748"></a><span class="lineno"> 748</span>&#160; program_demux_stream_map_[base::UintToString(index_program_id_) + <span class="stringliteral">&quot;:&quot;</span> +</div>
<div class="line"><a name="l00749"></a><span class="lineno"> 749</span>&#160; base::UintToString(</div>
<div class="line"><a name="l00750"></a><span class="lineno"> 750</span>&#160; video_pes_stream_id</div>
<div class="line"><a name="l00751"></a><span class="lineno"> 751</span>&#160; ? video_pes_stream_id</div>
<div class="line"><a name="l00752"></a><span class="lineno"> 752</span>&#160; : kDefaultVideoStreamId)] =</div>
<div class="line"><a name="l00753"></a><span class="lineno"> 753</span>&#160; stream_id_count_++;</div>
<div class="line"><a name="l00754"></a><span class="lineno"> 754</span>&#160; }</div>
<div class="line"><a name="l00755"></a><span class="lineno"> 755</span>&#160; <span class="keywordflow">if</span> (has_audio) {</div>
<div class="line"><a name="l00756"></a><span class="lineno"> 756</span>&#160; <span class="keyword">const</span> Codec audio_codec = kCodecAAC;</div>
<div class="line"><a name="l00757"></a><span class="lineno"> 757</span>&#160; <span class="comment">// TODO(beil): Pass in max and average bitrate in wvm container.</span></div>
<div class="line"><a name="l00758"></a><span class="lineno"> 758</span>&#160; stream_infos_.emplace_back(<span class="keyword">new</span> AudioStreamInfo(</div>
<div class="line"><a name="l00759"></a><span class="lineno"> 759</span>&#160; stream_id_count_, time_scale, track_duration, audio_codec,</div>
<div class="line"><a name="l00760"></a><span class="lineno"> 760</span>&#160; std::string(), audio_codec_config.data(), audio_codec_config.size(),</div>
<div class="line"><a name="l00761"></a><span class="lineno"> 761</span>&#160; kAacSampleSizeBits, num_channels, sampling_frequency,</div>
<div class="line"><a name="l00762"></a><span class="lineno"> 762</span>&#160; 0 <span class="comment">/* seek preroll */</span>, 0 <span class="comment">/* codec delay */</span>, 0 <span class="comment">/* max bitrate */</span>,</div>
<div class="line"><a name="l00763"></a><span class="lineno"> 763</span>&#160; 0 <span class="comment">/* avg bitrate */</span>, std::string(), <span class="keyword">true</span>));</div>
<div class="line"><a name="l00764"></a><span class="lineno"> 764</span>&#160; program_demux_stream_map_[base::UintToString(index_program_id_) + <span class="stringliteral">&quot;:&quot;</span> +</div>
<div class="line"><a name="l00765"></a><span class="lineno"> 765</span>&#160; base::UintToString(</div>
<div class="line"><a name="l00766"></a><span class="lineno"> 766</span>&#160; audio_pes_stream_id</div>
<div class="line"><a name="l00767"></a><span class="lineno"> 767</span>&#160; ? audio_pes_stream_id</div>
<div class="line"><a name="l00768"></a><span class="lineno"> 768</span>&#160; : kDefaultAudioStreamId)] =</div>
<div class="line"><a name="l00769"></a><span class="lineno"> 769</span>&#160; stream_id_count_++;</div>
<div class="line"><a name="l00770"></a><span class="lineno"> 770</span>&#160; }</div>
<div class="line"><a name="l00771"></a><span class="lineno"> 771</span>&#160; }</div>
<div class="line"><a name="l00772"></a><span class="lineno"> 772</span>&#160;</div>
<div class="line"><a name="l00773"></a><span class="lineno"> 773</span>&#160; index_program_id_++;</div>
<div class="line"><a name="l00774"></a><span class="lineno"> 774</span>&#160; index_data_.clear();</div>
<div class="line"><a name="l00775"></a><span class="lineno"> 775</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00776"></a><span class="lineno"> 776</span>&#160;}</div>
<div class="line"><a name="l00777"></a><span class="lineno"> 777</span>&#160;</div>
<div class="line"><a name="l00778"></a><span class="lineno"> 778</span>&#160;<span class="keywordtype">bool</span> WvmMediaParser::DemuxNextPes(<span class="keywordtype">bool</span> is_program_end) {</div>
<div class="line"><a name="l00779"></a><span class="lineno"> 779</span>&#160; <span class="keywordtype">bool</span> output_encrypted_sample = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00780"></a><span class="lineno"> 780</span>&#160; <span class="keywordflow">if</span> (!sample_data_.empty() &amp;&amp; (prev_pes_flags_1_ &amp; kScramblingBitsMask)) {</div>
<div class="line"><a name="l00781"></a><span class="lineno"> 781</span>&#160; <span class="comment">// Decrypt crypto unit.</span></div>
<div class="line"><a name="l00782"></a><span class="lineno"> 782</span>&#160; <span class="keywordflow">if</span> (!content_decryptor_) {</div>
<div class="line"><a name="l00783"></a><span class="lineno"> 783</span>&#160; output_encrypted_sample = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00784"></a><span class="lineno"> 784</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00785"></a><span class="lineno"> 785</span>&#160; content_decryptor_-&gt;Crypt(&amp;sample_data_[crypto_unit_start_pos_],</div>
<div class="line"><a name="l00786"></a><span class="lineno"> 786</span>&#160; sample_data_.size() - crypto_unit_start_pos_,</div>
<div class="line"><a name="l00787"></a><span class="lineno"> 787</span>&#160; &amp;sample_data_[crypto_unit_start_pos_]);</div>
<div class="line"><a name="l00788"></a><span class="lineno"> 788</span>&#160; }</div>
<div class="line"><a name="l00789"></a><span class="lineno"> 789</span>&#160; }</div>
<div class="line"><a name="l00790"></a><span class="lineno"> 790</span>&#160; <span class="comment">// Demux media sample if we are at program end or if we are not at a</span></div>
<div class="line"><a name="l00791"></a><span class="lineno"> 791</span>&#160; <span class="comment">// continuation PES.</span></div>
<div class="line"><a name="l00792"></a><span class="lineno"> 792</span>&#160; <span class="keywordflow">if</span> ((pes_flags_2_ &amp; kPesOptPts) || is_program_end) {</div>
<div class="line"><a name="l00793"></a><span class="lineno"> 793</span>&#160; <span class="keywordflow">if</span> (!sample_data_.empty()) {</div>
<div class="line"><a name="l00794"></a><span class="lineno"> 794</span>&#160; <span class="keywordflow">if</span> (!Output(output_encrypted_sample)) {</div>
<div class="line"><a name="l00795"></a><span class="lineno"> 795</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00796"></a><span class="lineno"> 796</span>&#160; }</div>
<div class="line"><a name="l00797"></a><span class="lineno"> 797</span>&#160; }</div>
<div class="line"><a name="l00798"></a><span class="lineno"> 798</span>&#160; StartMediaSampleDemux();</div>
<div class="line"><a name="l00799"></a><span class="lineno"> 799</span>&#160; }</div>
<div class="line"><a name="l00800"></a><span class="lineno"> 800</span>&#160;</div>
<div class="line"><a name="l00801"></a><span class="lineno"> 801</span>&#160; crypto_unit_start_pos_ = sample_data_.size();</div>
<div class="line"><a name="l00802"></a><span class="lineno"> 802</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00803"></a><span class="lineno"> 803</span>&#160;}</div>
<div class="line"><a name="l00804"></a><span class="lineno"> 804</span>&#160;</div>
<div class="line"><a name="l00805"></a><span class="lineno"> 805</span>&#160;<span class="keywordtype">void</span> WvmMediaParser::StartMediaSampleDemux() {</div>
<div class="line"><a name="l00806"></a><span class="lineno"> 806</span>&#160; <span class="keywordtype">bool</span> is_key_frame = ((pes_flags_1_ &amp; kPesOptAlign) != 0);</div>
<div class="line"><a name="l00807"></a><span class="lineno"> 807</span>&#160; media_sample_ = <a class="code" href="../../d7/d6d/classshaka_1_1media_1_1MediaSample.html#a4a7f8d79f9ec3cd3df9a395eef71f0c6">MediaSample::CreateEmptyMediaSample</a>();</div>
<div class="line"><a name="l00808"></a><span class="lineno"> 808</span>&#160; media_sample_-&gt;set_dts(dts_);</div>
<div class="line"><a name="l00809"></a><span class="lineno"> 809</span>&#160; media_sample_-&gt;set_pts(pts_);</div>
<div class="line"><a name="l00810"></a><span class="lineno"> 810</span>&#160; media_sample_-&gt;set_is_key_frame(is_key_frame);</div>
<div class="line"><a name="l00811"></a><span class="lineno"> 811</span>&#160;</div>
<div class="line"><a name="l00812"></a><span class="lineno"> 812</span>&#160; sample_data_.clear();</div>
<div class="line"><a name="l00813"></a><span class="lineno"> 813</span>&#160;}</div>
<div class="line"><a name="l00814"></a><span class="lineno"> 814</span>&#160;</div>
<div class="line"><a name="l00815"></a><span class="lineno"> 815</span>&#160;<span class="keywordtype">bool</span> WvmMediaParser::Output(<span class="keywordtype">bool</span> output_encrypted_sample) {</div>
<div class="line"><a name="l00816"></a><span class="lineno"> 816</span>&#160; <span class="keywordflow">if</span> (output_encrypted_sample) {</div>
<div class="line"><a name="l00817"></a><span class="lineno"> 817</span>&#160; media_sample_-&gt;set_data(sample_data_.data(), sample_data_.size());</div>
<div class="line"><a name="l00818"></a><span class="lineno"> 818</span>&#160; media_sample_-&gt;set_is_encrypted(<span class="keyword">true</span>);</div>
<div class="line"><a name="l00819"></a><span class="lineno"> 819</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00820"></a><span class="lineno"> 820</span>&#160; <span class="keywordflow">if</span> ((prev_pes_stream_id_ &amp; kPesStreamIdVideoMask) == kPesStreamIdVideo) {</div>
<div class="line"><a name="l00821"></a><span class="lineno"> 821</span>&#160; <span class="comment">// Convert video stream to unit stream and get config.</span></div>
<div class="line"><a name="l00822"></a><span class="lineno"> 822</span>&#160; std::vector&lt;uint8_t&gt; nal_unit_stream;</div>
<div class="line"><a name="l00823"></a><span class="lineno"> 823</span>&#160; <span class="keywordflow">if</span> (!byte_to_unit_stream_converter_.ConvertByteStreamToNalUnitStream(</div>
<div class="line"><a name="l00824"></a><span class="lineno"> 824</span>&#160; sample_data_.data(), sample_data_.size(), &amp;nal_unit_stream)) {</div>
<div class="line"><a name="l00825"></a><span class="lineno"> 825</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Could not convert h.264 byte stream sample&quot;</span>;</div>
<div class="line"><a name="l00826"></a><span class="lineno"> 826</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00827"></a><span class="lineno"> 827</span>&#160; }</div>
<div class="line"><a name="l00828"></a><span class="lineno"> 828</span>&#160; media_sample_-&gt;set_data(nal_unit_stream.data(), nal_unit_stream.size());</div>
<div class="line"><a name="l00829"></a><span class="lineno"> 829</span>&#160; <span class="keywordflow">if</span> (!is_initialized_) {</div>
<div class="line"><a name="l00830"></a><span class="lineno"> 830</span>&#160; <span class="comment">// Set extra data for video stream from AVC Decoder Config Record.</span></div>
<div class="line"><a name="l00831"></a><span class="lineno"> 831</span>&#160; <span class="comment">// Also, set codec string from the AVC Decoder Config Record.</span></div>
<div class="line"><a name="l00832"></a><span class="lineno"> 832</span>&#160; std::vector&lt;uint8_t&gt; decoder_config_record;</div>
<div class="line"><a name="l00833"></a><span class="lineno"> 833</span>&#160; byte_to_unit_stream_converter_.GetDecoderConfigurationRecord(</div>
<div class="line"><a name="l00834"></a><span class="lineno"> 834</span>&#160; &amp;decoder_config_record);</div>
<div class="line"><a name="l00835"></a><span class="lineno"> 835</span>&#160; <span class="keywordflow">for</span> (uint32_t i = 0; i &lt; stream_infos_.size(); i++) {</div>
<div class="line"><a name="l00836"></a><span class="lineno"> 836</span>&#160; <span class="keywordflow">if</span> (stream_infos_[i]-&gt;stream_type() == kStreamVideo &amp;&amp;</div>
<div class="line"><a name="l00837"></a><span class="lineno"> 837</span>&#160; stream_infos_[i]-&gt;codec_string().empty()) {</div>
<div class="line"><a name="l00838"></a><span class="lineno"> 838</span>&#160; <span class="keyword">const</span> std::vector&lt;uint8_t&gt;* stream_config;</div>
<div class="line"><a name="l00839"></a><span class="lineno"> 839</span>&#160; <span class="keywordflow">if</span> (stream_infos_[i]-&gt;codec_config().empty()) {</div>
<div class="line"><a name="l00840"></a><span class="lineno"> 840</span>&#160; <span class="comment">// Decoder config record not available for stream. Use the one</span></div>
<div class="line"><a name="l00841"></a><span class="lineno"> 841</span>&#160; <span class="comment">// computed from the first video stream.</span></div>
<div class="line"><a name="l00842"></a><span class="lineno"> 842</span>&#160; stream_infos_[i]-&gt;set_codec_config(decoder_config_record);</div>
<div class="line"><a name="l00843"></a><span class="lineno"> 843</span>&#160; stream_config = &amp;decoder_config_record;</div>
<div class="line"><a name="l00844"></a><span class="lineno"> 844</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00845"></a><span class="lineno"> 845</span>&#160; <span class="comment">// Use stream-specific config record.</span></div>
<div class="line"><a name="l00846"></a><span class="lineno"> 846</span>&#160; stream_config = &amp;stream_infos_[i]-&gt;codec_config();</div>
<div class="line"><a name="l00847"></a><span class="lineno"> 847</span>&#160; }</div>
<div class="line"><a name="l00848"></a><span class="lineno"> 848</span>&#160; DCHECK(stream_config);</div>
<div class="line"><a name="l00849"></a><span class="lineno"> 849</span>&#160;</div>
<div class="line"><a name="l00850"></a><span class="lineno"> 850</span>&#160; VideoStreamInfo* video_stream_info =</div>
<div class="line"><a name="l00851"></a><span class="lineno"> 851</span>&#160; <span class="keyword">reinterpret_cast&lt;</span>VideoStreamInfo*<span class="keyword">&gt;</span>(stream_infos_[i].get());</div>
<div class="line"><a name="l00852"></a><span class="lineno"> 852</span>&#160; AVCDecoderConfigurationRecord avc_config;</div>
<div class="line"><a name="l00853"></a><span class="lineno"> 853</span>&#160; <span class="keywordflow">if</span> (!avc_config.Parse(*stream_config)) {</div>
<div class="line"><a name="l00854"></a><span class="lineno"> 854</span>&#160; LOG(WARNING) &lt;&lt; <span class="stringliteral">&quot;Failed to parse AVCDecoderConfigurationRecord. &quot;</span></div>
<div class="line"><a name="l00855"></a><span class="lineno"> 855</span>&#160; <span class="stringliteral">&quot;Using computed configuration record instead.&quot;</span>;</div>
<div class="line"><a name="l00856"></a><span class="lineno"> 856</span>&#160; video_stream_info-&gt;set_codec_config(decoder_config_record);</div>
<div class="line"><a name="l00857"></a><span class="lineno"> 857</span>&#160; <span class="keywordflow">if</span> (!avc_config.Parse(decoder_config_record)) {</div>
<div class="line"><a name="l00858"></a><span class="lineno"> 858</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Failed to parse AVCDecoderConfigurationRecord.&quot;</span>;</div>
<div class="line"><a name="l00859"></a><span class="lineno"> 859</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00860"></a><span class="lineno"> 860</span>&#160; }</div>
<div class="line"><a name="l00861"></a><span class="lineno"> 861</span>&#160; }</div>
<div class="line"><a name="l00862"></a><span class="lineno"> 862</span>&#160; video_stream_info-&gt;set_codec_string(avc_config.GetCodecString());</div>
<div class="line"><a name="l00863"></a><span class="lineno"> 863</span>&#160;</div>
<div class="line"><a name="l00864"></a><span class="lineno"> 864</span>&#160; <span class="keywordflow">if</span> (avc_config.pixel_width() != video_stream_info-&gt;pixel_width() ||</div>
<div class="line"><a name="l00865"></a><span class="lineno"> 865</span>&#160; avc_config.pixel_height() !=</div>
<div class="line"><a name="l00866"></a><span class="lineno"> 866</span>&#160; video_stream_info-&gt;pixel_height()) {</div>
<div class="line"><a name="l00867"></a><span class="lineno"> 867</span>&#160; LOG_IF(WARNING, video_stream_info-&gt;pixel_width() != 0 ||</div>
<div class="line"><a name="l00868"></a><span class="lineno"> 868</span>&#160; video_stream_info-&gt;pixel_height() != 0)</div>
<div class="line"><a name="l00869"></a><span class="lineno"> 869</span>&#160; &lt;&lt; <span class="stringliteral">&quot;Pixel aspect ratio in WVM metadata (&quot;</span></div>
<div class="line"><a name="l00870"></a><span class="lineno"> 870</span>&#160; &lt;&lt; video_stream_info-&gt;pixel_width() &lt;&lt; <span class="stringliteral">&quot;,&quot;</span></div>
<div class="line"><a name="l00871"></a><span class="lineno"> 871</span>&#160; &lt;&lt; video_stream_info-&gt;pixel_height()</div>
<div class="line"><a name="l00872"></a><span class="lineno"> 872</span>&#160; &lt;&lt; <span class="stringliteral">&quot;) does not match with SAR in &quot;</span></div>
<div class="line"><a name="l00873"></a><span class="lineno"> 873</span>&#160; <span class="stringliteral">&quot;AVCDecoderConfigurationRecord (&quot;</span></div>
<div class="line"><a name="l00874"></a><span class="lineno"> 874</span>&#160; &lt;&lt; avc_config.pixel_width() &lt;&lt; <span class="stringliteral">&quot;,&quot;</span></div>
<div class="line"><a name="l00875"></a><span class="lineno"> 875</span>&#160; &lt;&lt; avc_config.pixel_height()</div>
<div class="line"><a name="l00876"></a><span class="lineno"> 876</span>&#160; &lt;&lt; <span class="stringliteral">&quot;). Use AVCDecoderConfigurationRecord.&quot;</span>;</div>
<div class="line"><a name="l00877"></a><span class="lineno"> 877</span>&#160; video_stream_info-&gt;set_pixel_width(avc_config.pixel_width());</div>
<div class="line"><a name="l00878"></a><span class="lineno"> 878</span>&#160; video_stream_info-&gt;set_pixel_height(avc_config.pixel_height());</div>
<div class="line"><a name="l00879"></a><span class="lineno"> 879</span>&#160; }</div>
<div class="line"><a name="l00880"></a><span class="lineno"> 880</span>&#160; <span class="keywordflow">if</span> (avc_config.coded_width() != video_stream_info-&gt;width() ||</div>
<div class="line"><a name="l00881"></a><span class="lineno"> 881</span>&#160; avc_config.coded_height() != video_stream_info-&gt;height()) {</div>
<div class="line"><a name="l00882"></a><span class="lineno"> 882</span>&#160; LOG(WARNING) &lt;&lt; <span class="stringliteral">&quot;Resolution in WVM metadata (&quot;</span></div>
<div class="line"><a name="l00883"></a><span class="lineno"> 883</span>&#160; &lt;&lt; video_stream_info-&gt;width() &lt;&lt; <span class="stringliteral">&quot;,&quot;</span></div>
<div class="line"><a name="l00884"></a><span class="lineno"> 884</span>&#160; &lt;&lt; video_stream_info-&gt;height()</div>
<div class="line"><a name="l00885"></a><span class="lineno"> 885</span>&#160; &lt;&lt; <span class="stringliteral">&quot;) does not match with resolution in &quot;</span></div>
<div class="line"><a name="l00886"></a><span class="lineno"> 886</span>&#160; <span class="stringliteral">&quot;AVCDecoderConfigurationRecord (&quot;</span></div>
<div class="line"><a name="l00887"></a><span class="lineno"> 887</span>&#160; &lt;&lt; avc_config.coded_width() &lt;&lt; <span class="stringliteral">&quot;,&quot;</span></div>
<div class="line"><a name="l00888"></a><span class="lineno"> 888</span>&#160; &lt;&lt; avc_config.coded_height()</div>
<div class="line"><a name="l00889"></a><span class="lineno"> 889</span>&#160; &lt;&lt; <span class="stringliteral">&quot;). Use AVCDecoderConfigurationRecord.&quot;</span>;</div>
<div class="line"><a name="l00890"></a><span class="lineno"> 890</span>&#160; video_stream_info-&gt;set_width(avc_config.coded_width());</div>
<div class="line"><a name="l00891"></a><span class="lineno"> 891</span>&#160; video_stream_info-&gt;set_height(avc_config.coded_height());</div>
<div class="line"><a name="l00892"></a><span class="lineno"> 892</span>&#160; }</div>
<div class="line"><a name="l00893"></a><span class="lineno"> 893</span>&#160; }</div>
<div class="line"><a name="l00894"></a><span class="lineno"> 894</span>&#160; }</div>
<div class="line"><a name="l00895"></a><span class="lineno"> 895</span>&#160; }</div>
<div class="line"><a name="l00896"></a><span class="lineno"> 896</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span> ((prev_pes_stream_id_ &amp; kPesStreamIdAudioMask) ==</div>
<div class="line"><a name="l00897"></a><span class="lineno"> 897</span>&#160; kPesStreamIdAudio) {</div>
<div class="line"><a name="l00898"></a><span class="lineno"> 898</span>&#160; <span class="comment">// Set data on the audio stream.</span></div>
<div class="line"><a name="l00899"></a><span class="lineno"> 899</span>&#160; <span class="keywordtype">int</span> frame_size = <span class="keyword">static_cast&lt;</span><span class="keywordtype">int</span><span class="keyword">&gt;</span>(<a class="code" href="../../d3/d0c/classshaka_1_1media_1_1mp2t_1_1AdtsHeader.html#a149fb9c7fa2718d719008af2dce8157f">mp2t::AdtsHeader::GetAdtsFrameSize</a>(</div>
<div class="line"><a name="l00900"></a><span class="lineno"> 900</span>&#160; sample_data_.data(), kAdtsHeaderMinSize));</div>
<div class="line"><a name="l00901"></a><span class="lineno"> 901</span>&#160; mp2t::AdtsHeader adts_header;</div>
<div class="line"><a name="l00902"></a><span class="lineno"> 902</span>&#160; <span class="keyword">const</span> uint8_t* frame_ptr = sample_data_.data();</div>
<div class="line"><a name="l00903"></a><span class="lineno"> 903</span>&#160; <span class="keywordflow">if</span> (!adts_header.Parse(frame_ptr, frame_size)) {</div>
<div class="line"><a name="l00904"></a><span class="lineno"> 904</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Could not parse ADTS header&quot;</span>;</div>
<div class="line"><a name="l00905"></a><span class="lineno"> 905</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00906"></a><span class="lineno"> 906</span>&#160; }</div>
<div class="line"><a name="l00907"></a><span class="lineno"> 907</span>&#160; <span class="keywordtype">size_t</span> header_size = adts_header.GetAdtsHeaderSize(frame_ptr,</div>
<div class="line"><a name="l00908"></a><span class="lineno"> 908</span>&#160; frame_size);</div>
<div class="line"><a name="l00909"></a><span class="lineno"> 909</span>&#160; media_sample_-&gt;set_data(frame_ptr + header_size,</div>
<div class="line"><a name="l00910"></a><span class="lineno"> 910</span>&#160; frame_size - header_size);</div>
<div class="line"><a name="l00911"></a><span class="lineno"> 911</span>&#160; <span class="keywordflow">if</span> (!is_initialized_) {</div>
<div class="line"><a name="l00912"></a><span class="lineno"> 912</span>&#160; <span class="keywordflow">for</span> (uint32_t i = 0; i &lt; stream_infos_.size(); i++) {</div>
<div class="line"><a name="l00913"></a><span class="lineno"> 913</span>&#160; <span class="keywordflow">if</span> (stream_infos_[i]-&gt;stream_type() == kStreamAudio &amp;&amp;</div>
<div class="line"><a name="l00914"></a><span class="lineno"> 914</span>&#160; stream_infos_[i]-&gt;codec_string().empty()) {</div>
<div class="line"><a name="l00915"></a><span class="lineno"> 915</span>&#160; AudioStreamInfo* audio_stream_info =</div>
<div class="line"><a name="l00916"></a><span class="lineno"> 916</span>&#160; <span class="keyword">reinterpret_cast&lt;</span>AudioStreamInfo*<span class="keyword">&gt;</span>(stream_infos_[i].get());</div>
<div class="line"><a name="l00917"></a><span class="lineno"> 917</span>&#160; <span class="keywordflow">if</span> (audio_stream_info-&gt;codec_config().empty()) {</div>
<div class="line"><a name="l00918"></a><span class="lineno"> 918</span>&#160; <span class="comment">// Set AudioStreamInfo fields using information from the ADTS</span></div>
<div class="line"><a name="l00919"></a><span class="lineno"> 919</span>&#160; <span class="comment">// header.</span></div>
<div class="line"><a name="l00920"></a><span class="lineno"> 920</span>&#160; audio_stream_info-&gt;set_sampling_frequency(</div>
<div class="line"><a name="l00921"></a><span class="lineno"> 921</span>&#160; adts_header.GetSamplingFrequency());</div>
<div class="line"><a name="l00922"></a><span class="lineno"> 922</span>&#160; std::vector&lt;uint8_t&gt; audio_specific_config;</div>
<div class="line"><a name="l00923"></a><span class="lineno"> 923</span>&#160; <span class="keywordflow">if</span> (!adts_header.GetAudioSpecificConfig(&amp;audio_specific_config)) {</div>
<div class="line"><a name="l00924"></a><span class="lineno"> 924</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Could not compute AACaudiospecificconfig&quot;</span>;</div>
<div class="line"><a name="l00925"></a><span class="lineno"> 925</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00926"></a><span class="lineno"> 926</span>&#160; }</div>
<div class="line"><a name="l00927"></a><span class="lineno"> 927</span>&#160; audio_stream_info-&gt;set_codec_config(audio_specific_config);</div>
<div class="line"><a name="l00928"></a><span class="lineno"> 928</span>&#160; audio_stream_info-&gt;set_codec_string(</div>
<div class="line"><a name="l00929"></a><span class="lineno"> 929</span>&#160; <a class="code" href="../../da/d4e/classshaka_1_1media_1_1AudioStreamInfo.html#aee79e7aa61b741bb96f451c6de1c9d42">AudioStreamInfo::GetCodecString</a>(</div>
<div class="line"><a name="l00930"></a><span class="lineno"> 930</span>&#160; kCodecAAC, adts_header.GetObjectType()));</div>
<div class="line"><a name="l00931"></a><span class="lineno"> 931</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00932"></a><span class="lineno"> 932</span>&#160; <span class="comment">// Set AudioStreamInfo fields using information from the</span></div>
<div class="line"><a name="l00933"></a><span class="lineno"> 933</span>&#160; <span class="comment">// AACAudioSpecificConfig record.</span></div>
<div class="line"><a name="l00934"></a><span class="lineno"> 934</span>&#160; AACAudioSpecificConfig aac_config;</div>
<div class="line"><a name="l00935"></a><span class="lineno"> 935</span>&#160; <span class="keywordflow">if</span> (!aac_config.Parse(stream_infos_[i]-&gt;codec_config())) {</div>
<div class="line"><a name="l00936"></a><span class="lineno"> 936</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Could not parse AACAudioSpecificconfig&quot;</span>;</div>
<div class="line"><a name="l00937"></a><span class="lineno"> 937</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00938"></a><span class="lineno"> 938</span>&#160; }</div>
<div class="line"><a name="l00939"></a><span class="lineno"> 939</span>&#160; audio_stream_info-&gt;set_sampling_frequency(aac_config.frequency());</div>
<div class="line"><a name="l00940"></a><span class="lineno"> 940</span>&#160; audio_stream_info-&gt;set_codec_string(</div>
<div class="line"><a name="l00941"></a><span class="lineno"> 941</span>&#160; <a class="code" href="../../da/d4e/classshaka_1_1media_1_1AudioStreamInfo.html#aee79e7aa61b741bb96f451c6de1c9d42">AudioStreamInfo::GetCodecString</a>(</div>
<div class="line"><a name="l00942"></a><span class="lineno"> 942</span>&#160; kCodecAAC, aac_config.audio_object_type()));</div>
<div class="line"><a name="l00943"></a><span class="lineno"> 943</span>&#160; }</div>
<div class="line"><a name="l00944"></a><span class="lineno"> 944</span>&#160; }</div>
<div class="line"><a name="l00945"></a><span class="lineno"> 945</span>&#160; }</div>
<div class="line"><a name="l00946"></a><span class="lineno"> 946</span>&#160; }</div>
<div class="line"><a name="l00947"></a><span class="lineno"> 947</span>&#160; }</div>
<div class="line"><a name="l00948"></a><span class="lineno"> 948</span>&#160; }</div>
<div class="line"><a name="l00949"></a><span class="lineno"> 949</span>&#160;</div>
<div class="line"><a name="l00950"></a><span class="lineno"> 950</span>&#160; <span class="keywordflow">if</span> (!is_initialized_) {</div>
<div class="line"><a name="l00951"></a><span class="lineno"> 951</span>&#160; <span class="keywordtype">bool</span> all_streams_have_config = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00952"></a><span class="lineno"> 952</span>&#160; <span class="comment">// Check if all collected stream infos have codec_config set.</span></div>
<div class="line"><a name="l00953"></a><span class="lineno"> 953</span>&#160; <span class="keywordflow">for</span> (uint32_t i = 0; i &lt; stream_infos_.size(); i++) {</div>
<div class="line"><a name="l00954"></a><span class="lineno"> 954</span>&#160; <span class="keywordflow">if</span> (stream_infos_[i]-&gt;codec_string().empty()) {</div>
<div class="line"><a name="l00955"></a><span class="lineno"> 955</span>&#160; all_streams_have_config = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00956"></a><span class="lineno"> 956</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00957"></a><span class="lineno"> 957</span>&#160; }</div>
<div class="line"><a name="l00958"></a><span class="lineno"> 958</span>&#160; }</div>
<div class="line"><a name="l00959"></a><span class="lineno"> 959</span>&#160; <span class="keywordflow">if</span> (all_streams_have_config) {</div>
<div class="line"><a name="l00960"></a><span class="lineno"> 960</span>&#160; init_cb_.Run(stream_infos_);</div>
<div class="line"><a name="l00961"></a><span class="lineno"> 961</span>&#160; is_initialized_ = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00962"></a><span class="lineno"> 962</span>&#160; }</div>
<div class="line"><a name="l00963"></a><span class="lineno"> 963</span>&#160; }</div>
<div class="line"><a name="l00964"></a><span class="lineno"> 964</span>&#160;</div>
<div class="line"><a name="l00965"></a><span class="lineno"> 965</span>&#160; DCHECK_GT(media_sample_-&gt;data_size(), 0UL);</div>
<div class="line"><a name="l00966"></a><span class="lineno"> 966</span>&#160; std::string key = base::UintToString(current_program_id_).append(<span class="stringliteral">&quot;:&quot;</span>)</div>
<div class="line"><a name="l00967"></a><span class="lineno"> 967</span>&#160; .append(base::UintToString(prev_pes_stream_id_));</div>
<div class="line"><a name="l00968"></a><span class="lineno"> 968</span>&#160; std::map&lt;std::string, uint32_t&gt;::iterator it =</div>
<div class="line"><a name="l00969"></a><span class="lineno"> 969</span>&#160; program_demux_stream_map_.find(key);</div>
<div class="line"><a name="l00970"></a><span class="lineno"> 970</span>&#160; <span class="keywordflow">if</span> (it == program_demux_stream_map_.end()) {</div>
<div class="line"><a name="l00971"></a><span class="lineno"> 971</span>&#160; <span class="comment">// TODO(ramjic): Log error message here and in other error cases through</span></div>
<div class="line"><a name="l00972"></a><span class="lineno"> 972</span>&#160; <span class="comment">// this method.</span></div>
<div class="line"><a name="l00973"></a><span class="lineno"> 973</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00974"></a><span class="lineno"> 974</span>&#160; }</div>
<div class="line"><a name="l00975"></a><span class="lineno"> 975</span>&#160; DemuxStreamIdMediaSample demux_stream_media_sample;</div>
<div class="line"><a name="l00976"></a><span class="lineno"> 976</span>&#160; demux_stream_media_sample.parsed_audio_or_video_stream_id =</div>
<div class="line"><a name="l00977"></a><span class="lineno"> 977</span>&#160; prev_pes_stream_id_;</div>
<div class="line"><a name="l00978"></a><span class="lineno"> 978</span>&#160; demux_stream_media_sample.demux_stream_id = (*it).second;</div>
<div class="line"><a name="l00979"></a><span class="lineno"> 979</span>&#160; demux_stream_media_sample.media_sample = media_sample_;</div>
<div class="line"><a name="l00980"></a><span class="lineno"> 980</span>&#160; <span class="comment">// Check if sample can be emitted.</span></div>
<div class="line"><a name="l00981"></a><span class="lineno"> 981</span>&#160; <span class="keywordflow">if</span> (!is_initialized_) {</div>
<div class="line"><a name="l00982"></a><span class="lineno"> 982</span>&#160; media_sample_queue_.push_back(demux_stream_media_sample);</div>
<div class="line"><a name="l00983"></a><span class="lineno"> 983</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00984"></a><span class="lineno"> 984</span>&#160; <span class="comment">// flush the sample queue and emit all queued samples.</span></div>
<div class="line"><a name="l00985"></a><span class="lineno"> 985</span>&#160; <span class="keywordflow">while</span> (!media_sample_queue_.empty()) {</div>
<div class="line"><a name="l00986"></a><span class="lineno"> 986</span>&#160; <span class="keywordflow">if</span> (!EmitPendingSamples())</div>
<div class="line"><a name="l00987"></a><span class="lineno"> 987</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00988"></a><span class="lineno"> 988</span>&#160; }</div>
<div class="line"><a name="l00989"></a><span class="lineno"> 989</span>&#160; <span class="comment">// Emit current sample.</span></div>
<div class="line"><a name="l00990"></a><span class="lineno"> 990</span>&#160; <span class="keywordflow">if</span> (!EmitSample(prev_pes_stream_id_, (*it).second, media_sample_, <span class="keyword">false</span>))</div>
<div class="line"><a name="l00991"></a><span class="lineno"> 991</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00992"></a><span class="lineno"> 992</span>&#160; }</div>
<div class="line"><a name="l00993"></a><span class="lineno"> 993</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00994"></a><span class="lineno"> 994</span>&#160;}</div>
<div class="line"><a name="l00995"></a><span class="lineno"> 995</span>&#160;</div>
<div class="line"><a name="l00996"></a><span class="lineno"> 996</span>&#160;<span class="keywordtype">bool</span> WvmMediaParser::EmitSample(uint32_t parsed_audio_or_video_stream_id,</div>
<div class="line"><a name="l00997"></a><span class="lineno"> 997</span>&#160; uint32_t stream_id,</div>
<div class="line"><a name="l00998"></a><span class="lineno"> 998</span>&#160; <span class="keyword">const</span> std::shared_ptr&lt;MediaSample&gt;&amp; new_sample,</div>
<div class="line"><a name="l00999"></a><span class="lineno"> 999</span>&#160; <span class="keywordtype">bool</span> isLastSample) {</div>
<div class="line"><a name="l01000"></a><span class="lineno"> 1000</span>&#160; DCHECK(new_sample);</div>
<div class="line"><a name="l01001"></a><span class="lineno"> 1001</span>&#160; <span class="keywordflow">if</span> (isLastSample) {</div>
<div class="line"><a name="l01002"></a><span class="lineno"> 1002</span>&#160; <span class="keywordflow">if</span> ((parsed_audio_or_video_stream_id &amp; kPesStreamIdVideoMask) ==</div>
<div class="line"><a name="l01003"></a><span class="lineno"> 1003</span>&#160; kPesStreamIdVideo) {</div>
<div class="line"><a name="l01004"></a><span class="lineno"> 1004</span>&#160; new_sample-&gt;set_duration(prev_media_sample_data_.video_sample_duration);</div>
<div class="line"><a name="l01005"></a><span class="lineno"> 1005</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span> ((parsed_audio_or_video_stream_id &amp; kPesStreamIdAudioMask) ==</div>
<div class="line"><a name="l01006"></a><span class="lineno"> 1006</span>&#160; kPesStreamIdAudio) {</div>
<div class="line"><a name="l01007"></a><span class="lineno"> 1007</span>&#160; new_sample-&gt;set_duration(prev_media_sample_data_.audio_sample_duration);</div>
<div class="line"><a name="l01008"></a><span class="lineno"> 1008</span>&#160; }</div>
<div class="line"><a name="l01009"></a><span class="lineno"> 1009</span>&#160; <span class="keywordflow">if</span> (!new_sample_cb_.Run(stream_id, new_sample)) {</div>
<div class="line"><a name="l01010"></a><span class="lineno"> 1010</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Failed to process the last sample.&quot;</span>;</div>
<div class="line"><a name="l01011"></a><span class="lineno"> 1011</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l01012"></a><span class="lineno"> 1012</span>&#160; }</div>
<div class="line"><a name="l01013"></a><span class="lineno"> 1013</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l01014"></a><span class="lineno"> 1014</span>&#160; }</div>
<div class="line"><a name="l01015"></a><span class="lineno"> 1015</span>&#160;</div>
<div class="line"><a name="l01016"></a><span class="lineno"> 1016</span>&#160; <span class="comment">// Cannot emit current sample. Compute duration first and then,</span></div>
<div class="line"><a name="l01017"></a><span class="lineno"> 1017</span>&#160; <span class="comment">// emit previous sample.</span></div>
<div class="line"><a name="l01018"></a><span class="lineno"> 1018</span>&#160; <span class="keywordflow">if</span> ((parsed_audio_or_video_stream_id &amp; kPesStreamIdVideoMask) ==</div>
<div class="line"><a name="l01019"></a><span class="lineno"> 1019</span>&#160; kPesStreamIdVideo) {</div>
<div class="line"><a name="l01020"></a><span class="lineno"> 1020</span>&#160; <span class="keywordflow">if</span> (prev_media_sample_data_.video_sample == NULL) {</div>
<div class="line"><a name="l01021"></a><span class="lineno"> 1021</span>&#160; prev_media_sample_data_.video_sample = new_sample;</div>
<div class="line"><a name="l01022"></a><span class="lineno"> 1022</span>&#160; prev_media_sample_data_.video_stream_id = stream_id;</div>
<div class="line"><a name="l01023"></a><span class="lineno"> 1023</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l01024"></a><span class="lineno"> 1024</span>&#160; }</div>
<div class="line"><a name="l01025"></a><span class="lineno"> 1025</span>&#160; prev_media_sample_data_.video_sample-&gt;set_duration(</div>
<div class="line"><a name="l01026"></a><span class="lineno"> 1026</span>&#160; new_sample-&gt;dts() - prev_media_sample_data_.video_sample-&gt;dts());</div>
<div class="line"><a name="l01027"></a><span class="lineno"> 1027</span>&#160; prev_media_sample_data_.video_sample_duration =</div>
<div class="line"><a name="l01028"></a><span class="lineno"> 1028</span>&#160; prev_media_sample_data_.video_sample-&gt;duration();</div>
<div class="line"><a name="l01029"></a><span class="lineno"> 1029</span>&#160; <span class="keywordflow">if</span> (!new_sample_cb_.Run(prev_media_sample_data_.video_stream_id,</div>
<div class="line"><a name="l01030"></a><span class="lineno"> 1030</span>&#160; prev_media_sample_data_.video_sample)) {</div>
<div class="line"><a name="l01031"></a><span class="lineno"> 1031</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Failed to process the video sample.&quot;</span>;</div>
<div class="line"><a name="l01032"></a><span class="lineno"> 1032</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l01033"></a><span class="lineno"> 1033</span>&#160; }</div>
<div class="line"><a name="l01034"></a><span class="lineno"> 1034</span>&#160; prev_media_sample_data_.video_sample = new_sample;</div>
<div class="line"><a name="l01035"></a><span class="lineno"> 1035</span>&#160; prev_media_sample_data_.video_stream_id = stream_id;</div>
<div class="line"><a name="l01036"></a><span class="lineno"> 1036</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span> ((parsed_audio_or_video_stream_id &amp; kPesStreamIdAudioMask) ==</div>
<div class="line"><a name="l01037"></a><span class="lineno"> 1037</span>&#160; kPesStreamIdAudio) {</div>
<div class="line"><a name="l01038"></a><span class="lineno"> 1038</span>&#160; <span class="keywordflow">if</span> (prev_media_sample_data_.audio_sample == NULL) {</div>
<div class="line"><a name="l01039"></a><span class="lineno"> 1039</span>&#160; prev_media_sample_data_.audio_sample = new_sample;</div>
<div class="line"><a name="l01040"></a><span class="lineno"> 1040</span>&#160; prev_media_sample_data_.audio_stream_id = stream_id;</div>
<div class="line"><a name="l01041"></a><span class="lineno"> 1041</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l01042"></a><span class="lineno"> 1042</span>&#160; }</div>
<div class="line"><a name="l01043"></a><span class="lineno"> 1043</span>&#160; prev_media_sample_data_.audio_sample-&gt;set_duration(</div>
<div class="line"><a name="l01044"></a><span class="lineno"> 1044</span>&#160; new_sample-&gt;dts() - prev_media_sample_data_.audio_sample-&gt;dts());</div>
<div class="line"><a name="l01045"></a><span class="lineno"> 1045</span>&#160; prev_media_sample_data_.audio_sample_duration =</div>
<div class="line"><a name="l01046"></a><span class="lineno"> 1046</span>&#160; prev_media_sample_data_.audio_sample-&gt;duration();</div>
<div class="line"><a name="l01047"></a><span class="lineno"> 1047</span>&#160; <span class="keywordflow">if</span> (!new_sample_cb_.Run(prev_media_sample_data_.audio_stream_id,</div>
<div class="line"><a name="l01048"></a><span class="lineno"> 1048</span>&#160; prev_media_sample_data_.audio_sample)) {</div>
<div class="line"><a name="l01049"></a><span class="lineno"> 1049</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Failed to process the audio sample.&quot;</span>;</div>
<div class="line"><a name="l01050"></a><span class="lineno"> 1050</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l01051"></a><span class="lineno"> 1051</span>&#160; }</div>
<div class="line"><a name="l01052"></a><span class="lineno"> 1052</span>&#160; prev_media_sample_data_.audio_sample = new_sample;</div>
<div class="line"><a name="l01053"></a><span class="lineno"> 1053</span>&#160; prev_media_sample_data_.audio_stream_id = stream_id;</div>
<div class="line"><a name="l01054"></a><span class="lineno"> 1054</span>&#160; }</div>
<div class="line"><a name="l01055"></a><span class="lineno"> 1055</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l01056"></a><span class="lineno"> 1056</span>&#160;}</div>
<div class="line"><a name="l01057"></a><span class="lineno"> 1057</span>&#160;</div>
<div class="line"><a name="l01058"></a><span class="lineno"> 1058</span>&#160;<span class="keywordtype">bool</span> WvmMediaParser::GetAssetKey(<span class="keyword">const</span> uint32_t asset_id,</div>
<div class="line"><a name="l01059"></a><span class="lineno"> 1059</span>&#160; EncryptionKey* encryption_key) {</div>
<div class="line"><a name="l01060"></a><span class="lineno"> 1060</span>&#160; DCHECK(decryption_key_source_);</div>
<div class="line"><a name="l01061"></a><span class="lineno"> 1061</span>&#160; Status status = decryption_key_source_-&gt;FetchKeys(asset_id);</div>
<div class="line"><a name="l01062"></a><span class="lineno"> 1062</span>&#160; <span class="keywordflow">if</span> (!status.ok()) {</div>
<div class="line"><a name="l01063"></a><span class="lineno"> 1063</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Fetch Key(s) failed for AssetID = &quot;</span> &lt;&lt; asset_id</div>
<div class="line"><a name="l01064"></a><span class="lineno"> 1064</span>&#160; &lt;&lt; <span class="stringliteral">&quot;, error = &quot;</span> &lt;&lt; status;</div>
<div class="line"><a name="l01065"></a><span class="lineno"> 1065</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l01066"></a><span class="lineno"> 1066</span>&#160; }</div>
<div class="line"><a name="l01067"></a><span class="lineno"> 1067</span>&#160;</div>
<div class="line"><a name="l01068"></a><span class="lineno"> 1068</span>&#160; status = decryption_key_source_-&gt;GetKey(KeySource::TRACK_TYPE_HD,</div>
<div class="line"><a name="l01069"></a><span class="lineno"> 1069</span>&#160; encryption_key);</div>
<div class="line"><a name="l01070"></a><span class="lineno"> 1070</span>&#160; <span class="keywordflow">if</span> (!status.ok()) {</div>
<div class="line"><a name="l01071"></a><span class="lineno"> 1071</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Fetch Key(s) failed for AssetID = &quot;</span> &lt;&lt; asset_id</div>
<div class="line"><a name="l01072"></a><span class="lineno"> 1072</span>&#160; &lt;&lt; <span class="stringliteral">&quot;, error = &quot;</span> &lt;&lt; status;</div>
<div class="line"><a name="l01073"></a><span class="lineno"> 1073</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l01074"></a><span class="lineno"> 1074</span>&#160; }</div>
<div class="line"><a name="l01075"></a><span class="lineno"> 1075</span>&#160;</div>
<div class="line"><a name="l01076"></a><span class="lineno"> 1076</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l01077"></a><span class="lineno"> 1077</span>&#160;}</div>
<div class="line"><a name="l01078"></a><span class="lineno"> 1078</span>&#160;</div>
<div class="line"><a name="l01079"></a><span class="lineno"> 1079</span>&#160;<span class="keywordtype">bool</span> WvmMediaParser::ProcessEcm() {</div>
<div class="line"><a name="l01080"></a><span class="lineno"> 1080</span>&#160; <span class="comment">// An error will be returned later if the samples need to be decrypted.</span></div>
<div class="line"><a name="l01081"></a><span class="lineno"> 1081</span>&#160; <span class="keywordflow">if</span> (!decryption_key_source_)</div>
<div class="line"><a name="l01082"></a><span class="lineno"> 1082</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l01083"></a><span class="lineno"> 1083</span>&#160;</div>
<div class="line"><a name="l01084"></a><span class="lineno"> 1084</span>&#160; <span class="keywordflow">if</span> (current_program_id_ &gt; 0) {</div>
<div class="line"><a name="l01085"></a><span class="lineno"> 1085</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l01086"></a><span class="lineno"> 1086</span>&#160; }</div>
<div class="line"><a name="l01087"></a><span class="lineno"> 1087</span>&#160; <span class="keywordflow">if</span> (ecm_.size() != kEcmSizeBytes) {</div>
<div class="line"><a name="l01088"></a><span class="lineno"> 1088</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Unexpected ECM size = &quot;</span> &lt;&lt; ecm_.size()</div>
<div class="line"><a name="l01089"></a><span class="lineno"> 1089</span>&#160; &lt;&lt; <span class="stringliteral">&quot;, expected size = &quot;</span> &lt;&lt; kEcmSizeBytes;</div>
<div class="line"><a name="l01090"></a><span class="lineno"> 1090</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l01091"></a><span class="lineno"> 1091</span>&#160; }</div>
<div class="line"><a name="l01092"></a><span class="lineno"> 1092</span>&#160; <span class="keyword">const</span> uint8_t* ecm_data = ecm_.data();</div>
<div class="line"><a name="l01093"></a><span class="lineno"> 1093</span>&#160; DCHECK(ecm_data);</div>
<div class="line"><a name="l01094"></a><span class="lineno"> 1094</span>&#160; ecm_data += <span class="keyword">sizeof</span>(uint32_t); <span class="comment">// old version field - skip.</span></div>
<div class="line"><a name="l01095"></a><span class="lineno"> 1095</span>&#160; ecm_data += <span class="keyword">sizeof</span>(uint32_t); <span class="comment">// clear lead - skip.</span></div>
<div class="line"><a name="l01096"></a><span class="lineno"> 1096</span>&#160; ecm_data += <span class="keyword">sizeof</span>(uint32_t); <span class="comment">// system id(includes ECM version) - skip.</span></div>
<div class="line"><a name="l01097"></a><span class="lineno"> 1097</span>&#160; uint32_t asset_id = ntohlFromBuffer(ecm_data);</div>
<div class="line"><a name="l01098"></a><span class="lineno"> 1098</span>&#160; <span class="keywordflow">if</span> (asset_id == 0) {</div>
<div class="line"><a name="l01099"></a><span class="lineno"> 1099</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;AssetID in ECM is not valid.&quot;</span>;</div>
<div class="line"><a name="l01100"></a><span class="lineno"> 1100</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l01101"></a><span class="lineno"> 1101</span>&#160; }</div>
<div class="line"><a name="l01102"></a><span class="lineno"> 1102</span>&#160; ecm_data += <span class="keyword">sizeof</span>(uint32_t); <span class="comment">// asset_id.</span></div>
<div class="line"><a name="l01103"></a><span class="lineno"> 1103</span>&#160; EncryptionKey encryption_key;</div>
<div class="line"><a name="l01104"></a><span class="lineno"> 1104</span>&#160; <span class="keywordflow">if</span> (!GetAssetKey(asset_id, &amp;encryption_key)) {</div>
<div class="line"><a name="l01105"></a><span class="lineno"> 1105</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l01106"></a><span class="lineno"> 1106</span>&#160; }</div>
<div class="line"><a name="l01107"></a><span class="lineno"> 1107</span>&#160; <span class="keywordflow">if</span> (encryption_key.key.size() &lt; kAssetKeySizeBytes) {</div>
<div class="line"><a name="l01108"></a><span class="lineno"> 1108</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Asset Key size of &quot;</span> &lt;&lt; encryption_key.key.size()</div>
<div class="line"><a name="l01109"></a><span class="lineno"> 1109</span>&#160; &lt;&lt; <span class="stringliteral">&quot; for AssetID = &quot;</span> &lt;&lt; asset_id</div>
<div class="line"><a name="l01110"></a><span class="lineno"> 1110</span>&#160; &lt;&lt; <span class="stringliteral">&quot; is less than minimum asset key size.&quot;</span>;</div>
<div class="line"><a name="l01111"></a><span class="lineno"> 1111</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l01112"></a><span class="lineno"> 1112</span>&#160; }</div>
<div class="line"><a name="l01113"></a><span class="lineno"> 1113</span>&#160; <span class="comment">// Legacy WVM content may have asset keys &gt; 16 bytes.</span></div>
<div class="line"><a name="l01114"></a><span class="lineno"> 1114</span>&#160; <span class="comment">// Use only the first 16 bytes of the asset key to get</span></div>
<div class="line"><a name="l01115"></a><span class="lineno"> 1115</span>&#160; <span class="comment">// the content key.</span></div>
<div class="line"><a name="l01116"></a><span class="lineno"> 1116</span>&#160; std::vector&lt;uint8_t&gt; asset_key(</div>
<div class="line"><a name="l01117"></a><span class="lineno"> 1117</span>&#160; encryption_key.key.begin(),</div>
<div class="line"><a name="l01118"></a><span class="lineno"> 1118</span>&#160; encryption_key.key.begin() + kAssetKeySizeBytes);</div>
<div class="line"><a name="l01119"></a><span class="lineno"> 1119</span>&#160; <span class="comment">// WVM format always uses all zero IV.</span></div>
<div class="line"><a name="l01120"></a><span class="lineno"> 1120</span>&#160; std::vector&lt;uint8_t&gt; zero_iv(kInitializationVectorSizeBytes, 0);</div>
<div class="line"><a name="l01121"></a><span class="lineno"> 1121</span>&#160; AesCbcDecryptor asset_decryptor(kCtsPadding, AesCryptor::kUseConstantIv);</div>
<div class="line"><a name="l01122"></a><span class="lineno"> 1122</span>&#160; <span class="keywordflow">if</span> (!asset_decryptor.InitializeWithIv(asset_key, zero_iv)) {</div>
<div class="line"><a name="l01123"></a><span class="lineno"> 1123</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Failed to initialize asset_decryptor.&quot;</span>;</div>
<div class="line"><a name="l01124"></a><span class="lineno"> 1124</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l01125"></a><span class="lineno"> 1125</span>&#160; }</div>
<div class="line"><a name="l01126"></a><span class="lineno"> 1126</span>&#160;</div>
<div class="line"><a name="l01127"></a><span class="lineno"> 1127</span>&#160; <span class="keyword">const</span> <span class="keywordtype">size_t</span> content_key_buffer_size =</div>
<div class="line"><a name="l01128"></a><span class="lineno"> 1128</span>&#160; kEcmFlagsSizeBytes + kEcmContentKeySizeBytes +</div>
<div class="line"><a name="l01129"></a><span class="lineno"> 1129</span>&#160; kEcmPaddingSizeBytes; <span class="comment">// flags + contentKey + padding.</span></div>
<div class="line"><a name="l01130"></a><span class="lineno"> 1130</span>&#160; std::vector&lt;uint8_t&gt; content_key_buffer(content_key_buffer_size);</div>
<div class="line"><a name="l01131"></a><span class="lineno"> 1131</span>&#160; CHECK(asset_decryptor.Crypt(ecm_data, content_key_buffer_size,</div>
<div class="line"><a name="l01132"></a><span class="lineno"> 1132</span>&#160; content_key_buffer.data()));</div>
<div class="line"><a name="l01133"></a><span class="lineno"> 1133</span>&#160;</div>
<div class="line"><a name="l01134"></a><span class="lineno"> 1134</span>&#160; std::vector&lt;uint8_t&gt; decrypted_content_key_vec(</div>
<div class="line"><a name="l01135"></a><span class="lineno"> 1135</span>&#160; content_key_buffer.begin() + 4,</div>
<div class="line"><a name="l01136"></a><span class="lineno"> 1136</span>&#160; content_key_buffer.begin() + 20);</div>
<div class="line"><a name="l01137"></a><span class="lineno"> 1137</span>&#160; std::unique_ptr&lt;AesCbcDecryptor&gt; content_decryptor(</div>
<div class="line"><a name="l01138"></a><span class="lineno"> 1138</span>&#160; <span class="keyword">new</span> AesCbcDecryptor(kCtsPadding, AesCryptor::kUseConstantIv));</div>
<div class="line"><a name="l01139"></a><span class="lineno"> 1139</span>&#160; <span class="keywordflow">if</span> (!content_decryptor-&gt;InitializeWithIv(decrypted_content_key_vec,</div>
<div class="line"><a name="l01140"></a><span class="lineno"> 1140</span>&#160; zero_iv)) {</div>
<div class="line"><a name="l01141"></a><span class="lineno"> 1141</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Failed to initialize content decryptor.&quot;</span>;</div>
<div class="line"><a name="l01142"></a><span class="lineno"> 1142</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l01143"></a><span class="lineno"> 1143</span>&#160; }</div>
<div class="line"><a name="l01144"></a><span class="lineno"> 1144</span>&#160;</div>
<div class="line"><a name="l01145"></a><span class="lineno"> 1145</span>&#160; content_decryptor_ = std::move(content_decryptor);</div>
<div class="line"><a name="l01146"></a><span class="lineno"> 1146</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l01147"></a><span class="lineno"> 1147</span>&#160;}</div>
<div class="line"><a name="l01148"></a><span class="lineno"> 1148</span>&#160;</div>
<div class="line"><a name="l01149"></a><span class="lineno"> 1149</span>&#160;DemuxStreamIdMediaSample::DemuxStreamIdMediaSample() :</div>
<div class="line"><a name="l01150"></a><span class="lineno"> 1150</span>&#160; demux_stream_id(0),</div>
<div class="line"><a name="l01151"></a><span class="lineno"> 1151</span>&#160; parsed_audio_or_video_stream_id(0) {}</div>
<div class="line"><a name="l01152"></a><span class="lineno"> 1152</span>&#160;</div>
<div class="line"><a name="l01153"></a><span class="lineno"> 1153</span>&#160;DemuxStreamIdMediaSample::~DemuxStreamIdMediaSample() {}</div>
<div class="line"><a name="l01154"></a><span class="lineno"> 1154</span>&#160;</div>
<div class="line"><a name="l01155"></a><span class="lineno"> 1155</span>&#160;PrevSampleData::PrevSampleData() {</div>
<div class="line"><a name="l01156"></a><span class="lineno"> 1156</span>&#160; Reset();</div>
<div class="line"><a name="l01157"></a><span class="lineno"> 1157</span>&#160;}</div>
<div class="line"><a name="l01158"></a><span class="lineno"> 1158</span>&#160;</div>
<div class="line"><a name="l01159"></a><span class="lineno"> 1159</span>&#160;PrevSampleData::~PrevSampleData() {}</div>
<div class="line"><a name="l01160"></a><span class="lineno"> 1160</span>&#160;</div>
<div class="line"><a name="l01161"></a><span class="lineno"> 1161</span>&#160;<span class="keywordtype">void</span> PrevSampleData::Reset() {</div>
<div class="line"><a name="l01162"></a><span class="lineno"> 1162</span>&#160; audio_sample = NULL;</div>
<div class="line"><a name="l01163"></a><span class="lineno"> 1163</span>&#160; video_sample = NULL;</div>
<div class="line"><a name="l01164"></a><span class="lineno"> 1164</span>&#160; audio_stream_id = 0;</div>
<div class="line"><a name="l01165"></a><span class="lineno"> 1165</span>&#160; video_stream_id = 0;</div>
<div class="line"><a name="l01166"></a><span class="lineno"> 1166</span>&#160; audio_sample_duration = 0;</div>
<div class="line"><a name="l01167"></a><span class="lineno"> 1167</span>&#160; video_sample_duration = 0;</div>
<div class="line"><a name="l01168"></a><span class="lineno"> 1168</span>&#160;}</div>
<div class="line"><a name="l01169"></a><span class="lineno"> 1169</span>&#160;</div>
<div class="line"><a name="l01170"></a><span class="lineno"> 1170</span>&#160;} <span class="comment">// namespace wvm</span></div>
<div class="line"><a name="l01171"></a><span class="lineno"> 1171</span>&#160;} <span class="comment">// namespace media</span></div>
<div class="line"><a name="l01172"></a><span class="lineno"> 1172</span>&#160;} <span class="comment">// namespace shaka</span></div>
<div class="ttc" id="classshaka_1_1media_1_1MediaSample_html_a4a7f8d79f9ec3cd3df9a395eef71f0c6"><div class="ttname"><a href="../../d7/d6d/classshaka_1_1media_1_1MediaSample.html#a4a7f8d79f9ec3cd3df9a395eef71f0c6">shaka::media::MediaSample::CreateEmptyMediaSample</a></div><div class="ttdeci">static std::shared_ptr&lt; MediaSample &gt; CreateEmptyMediaSample()</div><div class="ttdoc">Create a MediaSample object with default members. </div><div class="ttdef"><b>Definition:</b> <a href="../../d8/d0d/media__sample_8cc_source.html#l00074">media_sample.cc:74</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1mp2t_1_1AdtsHeader_html_a149fb9c7fa2718d719008af2dce8157f"><div class="ttname"><a href="../../d3/d0c/classshaka_1_1media_1_1mp2t_1_1AdtsHeader.html#a149fb9c7fa2718d719008af2dce8157f">shaka::media::mp2t::AdtsHeader::GetAdtsFrameSize</a></div><div class="ttdeci">static size_t GetAdtsFrameSize(const uint8_t *data, size_t num_bytes)</div><div class="ttdef"><b>Definition:</b> <a href="../../de/d5b/adts__header_8cc_source.html#l00023">adts_header.cc:23</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1AudioStreamInfo_html_aee79e7aa61b741bb96f451c6de1c9d42"><div class="ttname"><a href="../../da/d4e/classshaka_1_1media_1_1AudioStreamInfo.html#aee79e7aa61b741bb96f451c6de1c9d42">shaka::media::AudioStreamInfo::GetCodecString</a></div><div class="ttdeci">static std::string GetCodecString(Codec codec, uint8_t audio_object_type)</div><div class="ttdef"><b>Definition:</b> <a href="../../da/d04/audio__stream__info_8cc_source.html#l00095">audio_stream_info.cc:95</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1KeySource_html"><div class="ttname"><a href="../../d1/d1f/classshaka_1_1media_1_1KeySource.html">shaka::media::KeySource</a></div><div class="ttdoc">KeySource is responsible for encryption key acquisition. </div><div class="ttdef"><b>Definition:</b> <a href="../../dc/d3f/key__source_8h_source.html#l00030">key_source.h:30</a></div></div>
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