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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">// Copyright 2016 Google Inc. All rights reserved.</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment">// Use of this source code is governed by a BSD-style</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment">// license that can be found in the LICENSE file or at</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment">// https://developers.google.com/open-source/licenses/bsd</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;</div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="preprocessor">#include &quot;packager/media/formats/mp2t/ts_writer.h&quot;</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;</div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="preprocessor">#include &lt;algorithm&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/logging.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/audio_stream_info.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/buffer_writer.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/stream_info.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/video_stream_info.h&quot;</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="preprocessor">#include &quot;packager/media/formats/mp2t/ts_packet_writer_util.h&quot;</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;</div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="keyword">namespace </span>shaka {</div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;<span class="keyword">namespace </span>media {</div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="keyword">namespace </span>mp2t {</div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;</div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;<span class="keyword">namespace </span>{</div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;</div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="comment">// For all the pointer fields in the following PAT and PMTs, they are not really</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;<span class="comment">// part of PAT or PMT but it&#39;s there so that TsPacket can point to a memory</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;<span class="comment">// location that starts from pointer field.</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160;<span class="keyword">const</span> uint8_t kProgramAssociationTableId = 0x00;</div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;<span class="comment">// This PAT can be used for both encrypted and clear.</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;<span class="keyword">const</span> uint8_t kPat[] = {</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160; 0x00, <span class="comment">// pointer field</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160; kProgramAssociationTableId,</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160; 0xB0, <span class="comment">// The last 2 &#39;00&#39; assumes that this PAT is not very long.</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160; 0x0D, <span class="comment">// Length of the rest of this array.</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; 0x00, 0x00, <span class="comment">// Transport stream ID is 0.</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160; 0xC1, <span class="comment">// version number 0, current next indicator 1.</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; 0x00, <span class="comment">// section number</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160; 0x00, <span class="comment">// last section number</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160; <span class="comment">// program number -&gt; PMT PID mapping.</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; 0x00, 0x01, <span class="comment">// program number is 1.</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; 0xE0, <span class="comment">// first 3 bits is reserved.</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160; ProgramMapTableWriter::kPmtPid,</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; <span class="comment">// CRC32.</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; 0xF9, 0x62, 0xF5, 0x8B,</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160;};</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160;</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160;<span class="keyword">const</span> <span class="keywordtype">bool</span> kHasPcr = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160;<span class="keyword">const</span> <span class="keywordtype">bool</span> kPayloadUnitStartIndicator = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160;</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160;<span class="comment">// This is the size of the first few fields in a TS packet, i.e. TS packet size</span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160;<span class="comment">// without adaptation field or the payload.</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160;<span class="keyword">const</span> <span class="keywordtype">int</span> kTsPacketHeaderSize = 4;</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160;<span class="keyword">const</span> <span class="keywordtype">int</span> kTsPacketSize = 188;</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160;<span class="keyword">const</span> <span class="keywordtype">int</span> kTsPacketMaximumPayloadSize =</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; kTsPacketSize - kTsPacketHeaderSize;</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160;</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160;<span class="keyword">const</span> <span class="keywordtype">size_t</span> kMaxPesPacketLengthValue = 0xFFFF;</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160;</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160;<span class="keywordtype">void</span> WritePatToBuffer(<span class="keyword">const</span> uint8_t* pat,</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; <span class="keywordtype">int</span> pat_size,</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; ContinuityCounter* continuity_counter,</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; BufferWriter* writer) {</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; <span class="keyword">const</span> <span class="keywordtype">int</span> kPatPid = 0;</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; WritePayloadToBufferWriter(pat, pat_size, kPayloadUnitStartIndicator, kPatPid,</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; !kHasPcr, 0, continuity_counter, writer);</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160;}</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160;</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160;<span class="comment">// The only difference between writing PTS or DTS is the leading bits.</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160;<span class="keywordtype">void</span> WritePtsOrDts(uint8_t leading_bits,</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; uint64_t pts_or_dts,</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; BufferWriter* writer) {</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; <span class="comment">// First byte has 3 MSB of PTS.</span></div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; uint8_t first_byte =</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; leading_bits &lt;&lt; 4 | (((pts_or_dts &gt;&gt; 30) &amp; 0x07) &lt;&lt; 1) | 1;</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; <span class="comment">// Second byte has the next 8 bits of pts.</span></div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; uint8_t second_byte = (pts_or_dts &gt;&gt; 22) &amp; 0xFF;</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160; <span class="comment">// Third byte has the next 7 bits of pts followed by a marker bit.</span></div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; uint8_t third_byte = (((pts_or_dts &gt;&gt; 15) &amp; 0x7F) &lt;&lt; 1) | 1;</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; <span class="comment">// Fourth byte has the next 8 bits of pts.</span></div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; uint8_t fourth_byte = ((pts_or_dts &gt;&gt; 7) &amp; 0xFF);</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; <span class="comment">// Fifth byte has the last 7 bits of pts followed by a marker bit.</span></div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; uint8_t fifth_byte = ((pts_or_dts &amp; 0x7F) &lt;&lt; 1) | 1;</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; writer-&gt;AppendInt(first_byte);</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; writer-&gt;AppendInt(second_byte);</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; writer-&gt;AppendInt(third_byte);</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; writer-&gt;AppendInt(fourth_byte);</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; writer-&gt;AppendInt(fifth_byte);</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160;}</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160;</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160;<span class="keywordtype">bool</span> WritePesToFile(<span class="keyword">const</span> PesPacket&amp; pes,</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160; ContinuityCounter* continuity_counter,</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; File* file) {</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; <span class="comment">// The size of the length field.</span></div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; <span class="keyword">const</span> <span class="keywordtype">int</span> kAdaptationFieldLengthSize = 1;</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; <span class="comment">// The size of the flags field.</span></div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; <span class="keyword">const</span> <span class="keywordtype">int</span> kAdaptationFieldHeaderSize = 1;</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; <span class="keyword">const</span> <span class="keywordtype">int</span> kPcrFieldSize = 6;</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; <span class="keyword">const</span> <span class="keywordtype">int</span> kTsPacketMaxPayloadWithPcr =</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; kTsPacketMaximumPayloadSize - kAdaptationFieldLengthSize -</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; kAdaptationFieldHeaderSize - kPcrFieldSize;</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; <span class="keyword">const</span> uint64_t pcr_base = pes.has_dts() ? pes.dts() : pes.pts();</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; <span class="keyword">const</span> <span class="keywordtype">int</span> pid = ProgramMapTableWriter::kElementaryPid;</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160;</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; <span class="comment">// This writer will hold part of PES packet after PES_packet_length field.</span></div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; BufferWriter pes_header_writer;</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; <span class="comment">// The first bit must be &#39;10&#39; for PES with video or audio stream id. The other</span></div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; <span class="comment">// flags (bits) don&#39;t matter so they are 0.</span></div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; pes_header_writer.AppendInt(static_cast&lt;uint8_t&gt;(0x80));</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; pes_header_writer.AppendInt(</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; static_cast&lt;uint8_t&gt;(static_cast&lt;int&gt;(pes.has_pts()) &lt;&lt; 7 |</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; static_cast&lt;int&gt;(pes.has_dts()) &lt;&lt; 6</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; <span class="comment">// Other fields are all 0.</span></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; uint8_t pes_header_data_length = 0;</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; <span class="keywordflow">if</span> (pes.has_pts())</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; pes_header_data_length += 5;</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; <span class="keywordflow">if</span> (pes.has_dts())</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; pes_header_data_length += 5;</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; pes_header_writer.AppendInt(pes_header_data_length);</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160;</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; <span class="keywordflow">if</span> (pes.has_pts() &amp;&amp; pes.has_dts()) {</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; WritePtsOrDts(0x03, pes.pts(), &amp;pes_header_writer);</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; WritePtsOrDts(0x01, pes.dts(), &amp;pes_header_writer);</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (pes.has_pts()) {</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160; WritePtsOrDts(0x02, pes.pts(), &amp;pes_header_writer);</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"> 127</span>&#160;</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; <span class="comment">// Put the first TS packet&#39;s payload into a buffer. This contains the PES</span></div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160; <span class="comment">// packet&#39;s header.</span></div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160; BufferWriter first_ts_packet_buffer(kTsPacketSize);</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160; first_ts_packet_buffer.AppendNBytes(static_cast&lt;uint64_t&gt;(0x000001), 3);</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160; first_ts_packet_buffer.AppendInt(pes.stream_id());</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160; <span class="keyword">const</span> <span class="keywordtype">size_t</span> pes_packet_length = pes.data().size() + pes_header_writer.Size();</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; first_ts_packet_buffer.AppendInt(static_cast&lt;uint16_t&gt;(</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; pes_packet_length &gt; kMaxPesPacketLengthValue ? 0 : pes_packet_length));</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160; first_ts_packet_buffer.AppendBuffer(pes_header_writer);</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160;</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160; <span class="keyword">const</span> <span class="keywordtype">size_t</span> available_payload =</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160; kTsPacketMaxPayloadWithPcr - first_ts_packet_buffer.Size();</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160; <span class="keyword">const</span> <span class="keywordtype">size_t</span> bytes_consumed = std::min(pes.data().size(), available_payload);</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160; first_ts_packet_buffer.AppendArray(pes.data().data(), bytes_consumed);</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160;</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; BufferWriter output_writer;</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160; WritePayloadToBufferWriter(first_ts_packet_buffer.Buffer(),</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160; first_ts_packet_buffer.Size(),</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160; kPayloadUnitStartIndicator, pid, kHasPcr, pcr_base,</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160; continuity_counter, &amp;output_writer);</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160;</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160; <span class="keyword">const</span> <span class="keywordtype">size_t</span> remaining_pes_data_size = pes.data().size() - bytes_consumed;</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; <span class="keywordflow">if</span> (remaining_pes_data_size &gt; 0) {</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160; WritePayloadToBufferWriter(pes.data().data() + bytes_consumed,</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160; remaining_pes_data_size,</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160; !kPayloadUnitStartIndicator, pid, !kHasPcr, 0,</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160; continuity_counter, &amp;output_writer);</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160; }</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; <span class="keywordflow">return</span> output_writer.WriteToFile(file).ok();</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160;}</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160;</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160;} <span class="comment">// namespace</span></div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160;</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160;TsWriter::TsWriter() {}</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160;TsWriter::~TsWriter() {}</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160;</div>
<div class="line"><a name="l00164"></a><span class="lineno"><a class="line" href="../../de/d64/classshaka_1_1media_1_1mp2t_1_1TsWriter.html#a6bee605be771538f78633e2ecfc979c6"> 164</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="../../de/d64/classshaka_1_1media_1_1mp2t_1_1TsWriter.html#a6bee605be771538f78633e2ecfc979c6">TsWriter::Initialize</a>(<span class="keyword">const</span> <a class="code" href="../../d5/db1/classshaka_1_1media_1_1StreamInfo.html">StreamInfo</a>&amp; stream_info) {</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160; <span class="keyword">const</span> StreamType stream_type = stream_info.stream_type();</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160; <span class="keywordflow">if</span> (stream_type != StreamType::kStreamVideo &amp;&amp;</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160; stream_type != StreamType::kStreamAudio) {</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;TsWriter cannot handle stream type &quot;</span> &lt;&lt; stream_type</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160; &lt;&lt; <span class="stringliteral">&quot; yet.&quot;</span>;</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160; }</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160;</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160; <span class="keywordflow">if</span> (stream_info.stream_type() == StreamType::kStreamVideo) {</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160; <span class="keyword">const</span> <a class="code" href="../../d6/db1/classshaka_1_1media_1_1VideoStreamInfo.html">VideoStreamInfo</a>&amp; video_stream_info =</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160; <span class="keyword">static_cast&lt;</span><span class="keyword">const </span><a class="code" href="../../d6/db1/classshaka_1_1media_1_1VideoStreamInfo.html">VideoStreamInfo</a>&amp;<span class="keyword">&gt;</span>(stream_info);</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>&#160; <span class="keywordflow">if</span> (video_stream_info.codec() != Codec::kCodecH264) {</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;TsWriter cannot handle video codec &quot;</span></div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>&#160; &lt;&lt; video_stream_info.codec() &lt;&lt; <span class="stringliteral">&quot; yet.&quot;</span>;</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160; }</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160; pmt_writer_.reset(<span class="keyword">new</span> <a class="code" href="../../de/d27/classshaka_1_1media_1_1mp2t_1_1H264ProgramMapTableWriter.html">H264ProgramMapTableWriter</a>(&amp;pmt_continuity_counter_));</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>&#160; DCHECK_EQ(stream_type, StreamType::kStreamAudio);</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>&#160; <span class="keyword">const</span> <a class="code" href="../../da/d4e/classshaka_1_1media_1_1AudioStreamInfo.html">AudioStreamInfo</a>&amp; audio_stream_info =</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160; <span class="keyword">static_cast&lt;</span><span class="keyword">const </span><a class="code" href="../../da/d4e/classshaka_1_1media_1_1AudioStreamInfo.html">AudioStreamInfo</a>&amp;<span class="keyword">&gt;</span>(stream_info);</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160; <span class="keywordflow">if</span> (audio_stream_info.codec() != Codec::kCodecAAC) {</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;TsWriter cannot handle audio codec &quot;</span></div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>&#160; &lt;&lt; audio_stream_info.codec() &lt;&lt; <span class="stringliteral">&quot; yet.&quot;</span>;</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>&#160; }</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>&#160; pmt_writer_.reset(<span class="keyword">new</span> <a class="code" href="../../d4/dc8/classshaka_1_1media_1_1mp2t_1_1AacProgramMapTableWriter.html">AacProgramMapTableWriter</a>(</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>&#160; audio_stream_info.codec_config(), &amp;pmt_continuity_counter_));</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>&#160; }</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>&#160;</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>&#160;}</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>&#160;</div>
<div class="line"><a name="l00198"></a><span class="lineno"><a class="line" href="../../de/d64/classshaka_1_1media_1_1mp2t_1_1TsWriter.html#a9ba30b9cc1e4ae2992735709ae987c64"> 198</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="../../de/d64/classshaka_1_1media_1_1mp2t_1_1TsWriter.html#a9ba30b9cc1e4ae2992735709ae987c64">TsWriter::NewSegment</a>(<span class="keyword">const</span> std::string&amp; file_name) {</div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>&#160; <span class="keywordflow">if</span> (current_file_) {</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;File &quot;</span> &lt;&lt; current_file_-&gt;file_name() &lt;&lt; <span class="stringliteral">&quot; still open.&quot;</span>;</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>&#160; }</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>&#160; current_file_.reset(File::Open(file_name.c_str(), <span class="stringliteral">&quot;w&quot;</span>));</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>&#160; <span class="keywordflow">if</span> (!current_file_) {</div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Failed to open file &quot;</span> &lt;&lt; file_name;</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>&#160; }</div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>&#160;</div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>&#160; <a class="code" href="../../dc/d41/classshaka_1_1media_1_1BufferWriter.html">BufferWriter</a> psi;</div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>&#160; WritePatToBuffer(kPat, arraysize(kPat), &amp;pat_continuity_counter_, &amp;psi);</div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>&#160; <span class="keywordflow">if</span> (encrypted_) {</div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>&#160; <span class="keywordflow">if</span> (!pmt_writer_-&gt;EncryptedSegmentPmt(&amp;psi)) {</div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>&#160; }</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; <span class="keywordflow">if</span> (!pmt_writer_-&gt;ClearSegmentPmt(&amp;psi)) {</div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</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; }</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>&#160;</div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>&#160; <span class="keywordflow">if</span> (!psi.<a class="code" href="../../dc/d41/classshaka_1_1media_1_1BufferWriter.html#a868dba843fcf923dd140fdda859a3a6d">WriteToFile</a>(current_file_.get()).ok()) {</div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Failed to write PSI to file.&quot;</span>;</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>&#160; }</div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>&#160;</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>&#160;}</div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>&#160;</div>
<div class="line"><a name="l00229"></a><span class="lineno"><a class="line" href="../../de/d64/classshaka_1_1media_1_1mp2t_1_1TsWriter.html#afc47f61bce7cd4f8f6a6ea0ec2c96d4c"> 229</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="../../de/d64/classshaka_1_1media_1_1mp2t_1_1TsWriter.html#afc47f61bce7cd4f8f6a6ea0ec2c96d4c">TsWriter::SignalEncrypted</a>() {</div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>&#160; encrypted_ = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>&#160;}</div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>&#160;</div>
<div class="line"><a name="l00233"></a><span class="lineno"><a class="line" href="../../de/d64/classshaka_1_1media_1_1mp2t_1_1TsWriter.html#ae9979f940d7a07127709576aa1f766a1"> 233</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="../../de/d64/classshaka_1_1media_1_1mp2t_1_1TsWriter.html#ae9979f940d7a07127709576aa1f766a1">TsWriter::FinalizeSegment</a>() {</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>&#160; <span class="keywordflow">return</span> current_file_.release()-&gt;Close();</div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>&#160;}</div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>&#160;</div>
<div class="line"><a name="l00237"></a><span class="lineno"><a class="line" href="../../de/d64/classshaka_1_1media_1_1mp2t_1_1TsWriter.html#a19a7699df7ac129aedfdff074a8a18a3"> 237</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="../../de/d64/classshaka_1_1media_1_1mp2t_1_1TsWriter.html#a19a7699df7ac129aedfdff074a8a18a3">TsWriter::AddPesPacket</a>(std::unique_ptr&lt;PesPacket&gt; pes_packet) {</div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>&#160; DCHECK(current_file_);</div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>&#160; <span class="keywordflow">if</span> (!WritePesToFile(*pes_packet, &amp;elementary_stream_continuity_counter_,</div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>&#160; current_file_.get())) {</div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>&#160; LOG(ERROR) &lt;&lt; <span class="stringliteral">&quot;Failed to write pes to file.&quot;</span>;</div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>&#160; }</div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>&#160;</div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>&#160; <span class="comment">// No need to keep pes_packet around so not passing it anywhere.</span></div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>&#160;}</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>&#160;</div>
<div class="line"><a name="l00249"></a><span class="lineno"><a class="line" href="../../de/d64/classshaka_1_1media_1_1mp2t_1_1TsWriter.html#a6eeeadf8e60dc09378b5df7c62eb2bf0"> 249</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="../../de/d64/classshaka_1_1media_1_1mp2t_1_1TsWriter.html#a6eeeadf8e60dc09378b5df7c62eb2bf0">TsWriter::SetProgramMapTableWriterForTesting</a>(</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>&#160; std::unique_ptr&lt;ProgramMapTableWriter&gt; table_writer) {</div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>&#160; pmt_writer_ = std::move(table_writer);</div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>&#160;}</div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>&#160;</div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>&#160;} <span class="comment">// namespace mp2t</span></div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>&#160;} <span class="comment">// namespace media</span></div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>&#160;} <span class="comment">// namespace shaka</span></div>
<div class="ttc" id="classshaka_1_1media_1_1StreamInfo_html"><div class="ttname"><a href="../../d5/db1/classshaka_1_1media_1_1StreamInfo.html">shaka::media::StreamInfo</a></div><div class="ttdoc">Abstract class holds stream information. </div><div class="ttdef"><b>Definition:</b> <a href="../../d8/daa/stream__info_8h_source.html#l00057">stream_info.h:57</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1mp2t_1_1AacProgramMapTableWriter_html"><div class="ttname"><a href="../../d4/dc8/classshaka_1_1media_1_1mp2t_1_1AacProgramMapTableWriter.html">shaka::media::mp2t::AacProgramMapTableWriter</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d2/dcd/program__map__table__writer_8h_source.html#l00069">program_map_table_writer.h:69</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1mp2t_1_1TsWriter_html_a9ba30b9cc1e4ae2992735709ae987c64"><div class="ttname"><a href="../../de/d64/classshaka_1_1media_1_1mp2t_1_1TsWriter.html#a9ba30b9cc1e4ae2992735709ae987c64">shaka::media::mp2t::TsWriter::NewSegment</a></div><div class="ttdeci">virtual bool NewSegment(const std::string &amp;file_name)</div><div class="ttdef"><b>Definition:</b> <a href="../../de/d13/ts__writer_8cc_source.html#l00198">ts_writer.cc:198</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1mp2t_1_1TsWriter_html_a19a7699df7ac129aedfdff074a8a18a3"><div class="ttname"><a href="../../de/d64/classshaka_1_1media_1_1mp2t_1_1TsWriter.html#a19a7699df7ac129aedfdff074a8a18a3">shaka::media::mp2t::TsWriter::AddPesPacket</a></div><div class="ttdeci">virtual bool AddPesPacket(std::unique_ptr&lt; PesPacket &gt; pes_packet)</div><div class="ttdef"><b>Definition:</b> <a href="../../de/d13/ts__writer_8cc_source.html#l00237">ts_writer.cc:237</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1BufferWriter_html"><div class="ttname"><a href="../../dc/d41/classshaka_1_1media_1_1BufferWriter.html">shaka::media::BufferWriter</a></div><div class="ttdef"><b>Definition:</b> <a href="../../dd/dd2/buffer__writer_8h_source.html#l00023">buffer_writer.h:23</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1mp2t_1_1H264ProgramMapTableWriter_html"><div class="ttname"><a href="../../de/d27/classshaka_1_1media_1_1mp2t_1_1H264ProgramMapTableWriter.html">shaka::media::mp2t::H264ProgramMapTableWriter</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d2/dcd/program__map__table__writer_8h_source.html#l00048">program_map_table_writer.h:48</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1mp2t_1_1TsWriter_html_a6eeeadf8e60dc09378b5df7c62eb2bf0"><div class="ttname"><a href="../../de/d64/classshaka_1_1media_1_1mp2t_1_1TsWriter.html#a6eeeadf8e60dc09378b5df7c62eb2bf0">shaka::media::mp2t::TsWriter::SetProgramMapTableWriterForTesting</a></div><div class="ttdeci">void SetProgramMapTableWriterForTesting(std::unique_ptr&lt; ProgramMapTableWriter &gt; table_writer)</div><div class="ttdoc">Only for testing. </div><div class="ttdef"><b>Definition:</b> <a href="../../de/d13/ts__writer_8cc_source.html#l00249">ts_writer.cc:249</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1mp2t_1_1TsWriter_html_ae9979f940d7a07127709576aa1f766a1"><div class="ttname"><a href="../../de/d64/classshaka_1_1media_1_1mp2t_1_1TsWriter.html#ae9979f940d7a07127709576aa1f766a1">shaka::media::mp2t::TsWriter::FinalizeSegment</a></div><div class="ttdeci">virtual bool FinalizeSegment()</div><div class="ttdef"><b>Definition:</b> <a href="../../de/d13/ts__writer_8cc_source.html#l00233">ts_writer.cc:233</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1mp2t_1_1TsWriter_html_a6bee605be771538f78633e2ecfc979c6"><div class="ttname"><a href="../../de/d64/classshaka_1_1media_1_1mp2t_1_1TsWriter.html#a6bee605be771538f78633e2ecfc979c6">shaka::media::mp2t::TsWriter::Initialize</a></div><div class="ttdeci">virtual bool Initialize(const StreamInfo &amp;stream_info)</div><div class="ttdef"><b>Definition:</b> <a href="../../de/d13/ts__writer_8cc_source.html#l00164">ts_writer.cc:164</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1VideoStreamInfo_html"><div class="ttname"><a href="../../d6/db1/classshaka_1_1media_1_1VideoStreamInfo.html">shaka::media::VideoStreamInfo</a></div><div class="ttdoc">Holds video stream information. </div><div class="ttdef"><b>Definition:</b> <a href="../../d7/d87/video__stream__info_8h_source.html#l00023">video_stream_info.h:23</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1AudioStreamInfo_html"><div class="ttname"><a href="../../da/d4e/classshaka_1_1media_1_1AudioStreamInfo.html">shaka::media::AudioStreamInfo</a></div><div class="ttdoc">Holds audio stream information. </div><div class="ttdef"><b>Definition:</b> <a href="../../df/d32/audio__stream__info_8h_source.html#l00018">audio_stream_info.h:18</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1BufferWriter_html_a868dba843fcf923dd140fdda859a3a6d"><div class="ttname"><a href="../../dc/d41/classshaka_1_1media_1_1BufferWriter.html#a868dba843fcf923dd140fdda859a3a6d">shaka::media::BufferWriter::WriteToFile</a></div><div class="ttdeci">Status WriteToFile(File *file)</div><div class="ttdef"><b>Definition:</b> <a href="../../dd/dd3/buffer__writer_8cc_source.html#l00066">buffer_writer.cc:66</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1mp2t_1_1TsWriter_html_afc47f61bce7cd4f8f6a6ea0ec2c96d4c"><div class="ttname"><a href="../../de/d64/classshaka_1_1media_1_1mp2t_1_1TsWriter.html#afc47f61bce7cd4f8f6a6ea0ec2c96d4c">shaka::media::mp2t::TsWriter::SignalEncrypted</a></div><div class="ttdeci">virtual void SignalEncrypted()</div><div class="ttdoc">Signals the writer that the rest of the segments are encrypted. </div><div class="ttdef"><b>Definition:</b> <a href="../../de/d13/ts__writer_8cc_source.html#l00229">ts_writer.cc:229</a></div></div>
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