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<div class="title">ts_writer.cc</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Copyright 2016 Google Inc. All rights reserved.</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Use of this source code is governed by a BSD-style</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// license that can be found in the LICENSE file or at</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// https://developers.google.com/open-source/licenses/bsd</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> </div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#include "packager/media/formats/mp2t/ts_writer.h"</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> </div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#include <algorithm></span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include "packager/base/logging.h"</span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include "packager/media/base/audio_stream_info.h"</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include "packager/media/base/buffer_writer.h"</span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "packager/media/base/stream_info.h"</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include "packager/media/base/video_stream_info.h"</span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include "packager/media/formats/mp2t/ts_packet_writer_util.h"</span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="keyword">namespace </span>shaka {</div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="keyword">namespace </span>media {</div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="keyword">namespace </span>mp2t {</div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="keyword">namespace </span>{</div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> </div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment">// For all the pointer fields in the following PAT and PMTs, they are not really</span></div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment">// part of PAT or PMT but it's there so that TsPacket can point to a memory</span></div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment">// location that starts from pointer field.</span></div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="keyword">const</span> uint8_t kProgramAssociationTableId = 0x00;</div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment">// This PAT can be used for both encrypted and clear.</span></div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">const</span> uint8_t kPat[] = {</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  0x00, <span class="comment">// pointer field</span></div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  kProgramAssociationTableId,</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  0xB0, <span class="comment">// The last 2 '00' assumes that this PAT is not very long.</span></div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  0x0D, <span class="comment">// Length of the rest of this array.</span></div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  0x00, 0x00, <span class="comment">// Transport stream ID is 0.</span></div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  0xC1, <span class="comment">// version number 0, current next indicator 1.</span></div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  0x00, <span class="comment">// section number</span></div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  0x00, <span class="comment">// last section number</span></div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="comment">// program number -> PMT PID mapping.</span></div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  0x00, 0x01, <span class="comment">// program number is 1.</span></div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  0xE0, <span class="comment">// first 3 bits is reserved.</span></div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  ProgramMapTableWriter::kPmtPid,</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="comment">// CRC32.</span></div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  0xF9, 0x62, 0xF5, 0x8B,</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> };</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> kHasPcr = <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> kPayloadUnitStartIndicator = <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> </div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="comment">// This is the size of the first few fields in a TS packet, i.e. TS packet size</span></div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="comment">// without adaptation field or the payload.</span></div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="keyword">const</span> <span class="keywordtype">int</span> kTsPacketHeaderSize = 4;</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="keyword">const</span> <span class="keywordtype">int</span> kTsPacketSize = 188;</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="keyword">const</span> <span class="keywordtype">int</span> kTsPacketMaximumPayloadSize =</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  kTsPacketSize - kTsPacketHeaderSize;</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="keyword">const</span> <span class="keywordtype">size_t</span> kMaxPesPacketLengthValue = 0xFFFF;</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> </div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="keywordtype">void</span> WritePatToBuffer(<span class="keyword">const</span> uint8_t* pat,</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keywordtype">int</span> pat_size,</div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  ContinuityCounter* continuity_counter,</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  BufferWriter* writer) {</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> kPatPid = 0;</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  WritePayloadToBufferWriter(pat, pat_size, kPayloadUnitStartIndicator, kPatPid,</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  !kHasPcr, 0, continuity_counter, writer);</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> }</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="comment">// The only difference between writing PTS or DTS is the leading bits.</span></div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="keywordtype">void</span> WritePtsOrDts(uint8_t leading_bits,</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  uint64_t pts_or_dts,</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  BufferWriter* writer) {</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="comment">// First byte has 3 MSB of PTS.</span></div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  uint8_t first_byte =</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  leading_bits << 4 | (((pts_or_dts >> 30) & 0x07) << 1) | 1;</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="comment">// Second byte has the next 8 bits of pts.</span></div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  uint8_t second_byte = (pts_or_dts >> 22) & 0xFF;</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="comment">// Third byte has the next 7 bits of pts followed by a marker bit.</span></div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  uint8_t third_byte = (((pts_or_dts >> 15) & 0x7F) << 1) | 1;</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="comment">// Fourth byte has the next 8 bits of pts.</span></div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  uint8_t fourth_byte = ((pts_or_dts >> 7) & 0xFF);</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="comment">// Fifth byte has the last 7 bits of pts followed by a marker bit.</span></div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  uint8_t fifth_byte = ((pts_or_dts & 0x7F) << 1) | 1;</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  writer->AppendInt(first_byte);</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  writer->AppendInt(second_byte);</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  writer->AppendInt(third_byte);</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  writer->AppendInt(fourth_byte);</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  writer->AppendInt(fifth_byte);</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> }</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> </div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="keywordtype">bool</span> WritePesToFile(<span class="keyword">const</span> PesPacket& pes,</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  ContinuityCounter* continuity_counter,</div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  File* file) {</div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="comment">// The size of the length field.</span></div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> kAdaptationFieldLengthSize = 1;</div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="comment">// The size of the flags field.</span></div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> kAdaptationFieldHeaderSize = 1;</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> kPcrFieldSize = 6;</div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> kTsPacketMaxPayloadWithPcr =</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  kTsPacketMaximumPayloadSize - kAdaptationFieldLengthSize -</div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  kAdaptationFieldHeaderSize - kPcrFieldSize;</div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keyword">const</span> uint64_t pcr_base = pes.has_dts() ? pes.dts() : pes.pts();</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> pid = ProgramMapTableWriter::kElementaryPid;</div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> </div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="comment">// This writer will hold part of PES packet after PES_packet_length field.</span></div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  BufferWriter pes_header_writer;</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="comment">// The first bit must be '10' for PES with video or audio stream id. The other</span></div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="comment">// flags (bits) don't matter so they are 0.</span></div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  pes_header_writer.AppendInt(static_cast<uint8_t>(0x80));</div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  pes_header_writer.AppendInt(</div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  static_cast<uint8_t>(static_cast<int>(pes.has_pts()) << 7 |</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  static_cast<int>(pes.has_dts()) << 6</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="comment">// Other fields are all 0.</span></div>
|
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  ));</div>
|
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  uint8_t pes_header_data_length = 0;</div>
|
|
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keywordflow">if</span> (pes.has_pts())</div>
|
|
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  pes_header_data_length += 5;</div>
|
|
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keywordflow">if</span> (pes.has_dts())</div>
|
|
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  pes_header_data_length += 5;</div>
|
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  pes_header_writer.AppendInt(pes_header_data_length);</div>
|
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> </div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keywordflow">if</span> (pes.has_pts() && pes.has_dts()) {</div>
|
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  WritePtsOrDts(0x03, pes.pts(), &pes_header_writer);</div>
|
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  WritePtsOrDts(0x01, pes.dts(), &pes_header_writer);</div>
|
|
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  } <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>  WritePtsOrDts(0x02, pes.pts(), &pes_header_writer);</div>
|
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  }</div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> </div>
|
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="comment">// Put the first TS packet's payload into a buffer. This contains the PES</span></div>
|
|
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="comment">// packet's header.</span></div>
|
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  BufferWriter first_ts_packet_buffer(kTsPacketSize);</div>
|
|
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  first_ts_packet_buffer.AppendNBytes(static_cast<uint64_t>(0x000001), 3);</div>
|
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  first_ts_packet_buffer.AppendInt(pes.stream_id());</div>
|
|
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <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>  first_ts_packet_buffer.AppendInt(static_cast<uint16_t>(</div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  pes_packet_length > kMaxPesPacketLengthValue ? 0 : pes_packet_length));</div>
|
|
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  first_ts_packet_buffer.AppendBuffer(pes_header_writer);</div>
|
|
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> </div>
|
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> available_payload =</div>
|
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  kTsPacketMaxPayloadWithPcr - first_ts_packet_buffer.Size();</div>
|
|
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> bytes_consumed =</div>
|
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  std::min(static_cast<int>(pes.data().size()), available_payload);</div>
|
|
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  first_ts_packet_buffer.AppendArray(pes.data().data(), bytes_consumed);</div>
|
|
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> </div>
|
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  BufferWriter output_writer;</div>
|
|
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  WritePayloadToBufferWriter(first_ts_packet_buffer.Buffer(),</div>
|
|
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  first_ts_packet_buffer.Size(),</div>
|
|
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  kPayloadUnitStartIndicator, pid, kHasPcr, pcr_base,</div>
|
|
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  continuity_counter, &output_writer);</div>
|
|
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span> </div>
|
|
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <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="l00151"></a><span class="lineno"> 151</span>  <span class="keywordflow">if</span> (remaining_pes_data_size > 0) {</div>
|
|
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  WritePayloadToBufferWriter(pes.data().data() + bytes_consumed,</div>
|
|
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  remaining_pes_data_size,</div>
|
|
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  !kPayloadUnitStartIndicator, pid, !kHasPcr, 0,</div>
|
|
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  continuity_counter, &output_writer);</div>
|
|
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  }</div>
|
|
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keywordflow">return</span> output_writer.WriteToFile(file).ok();</div>
|
|
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span> }</div>
|
|
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span> </div>
|
|
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span> } <span class="comment">// namespace</span></div>
|
|
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span> </div>
|
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<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> TsWriter::TsWriter() {}</div>
|
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<div class="line"><a name="l00163"></a><span class="lineno"> 163</span> TsWriter::~TsWriter() {}</div>
|
|
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> </div>
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|
<div class="line"><a name="l00165"></a><span class="lineno"><a class="line" href="../../de/d64/classshaka_1_1media_1_1mp2t_1_1TsWriter.html#a6bee605be771538f78633e2ecfc979c6"> 165</a></span> <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>& stream_info) {</div>
|
|
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keyword">const</span> StreamType stream_type = stream_info.stream_type();</div>
|
|
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keywordflow">if</span> (stream_type != StreamType::kStreamVideo &&</div>
|
|
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  stream_type != StreamType::kStreamAudio) {</div>
|
|
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  LOG(ERROR) << <span class="stringliteral">"TsWriter cannot handle stream type "</span> << stream_type</div>
|
|
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  << <span class="stringliteral">" yet."</span>;</div>
|
|
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  }</div>
|
|
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span> </div>
|
|
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keywordflow">if</span> (stream_info.stream_type() == StreamType::kStreamVideo) {</div>
|
|
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keyword">const</span> <a class="code" href="../../d6/db1/classshaka_1_1media_1_1VideoStreamInfo.html">VideoStreamInfo</a>& video_stream_info =</div>
|
|
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keyword">static_cast<</span><span class="keyword">const </span><a class="code" href="../../d6/db1/classshaka_1_1media_1_1VideoStreamInfo.html">VideoStreamInfo</a>&<span class="keyword">></span>(stream_info);</div>
|
|
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="keywordflow">if</span> (video_stream_info.codec() != Codec::kCodecH264) {</div>
|
|
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  LOG(ERROR) << <span class="stringliteral">"TsWriter cannot handle video codec "</span></div>
|
|
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  << video_stream_info.codec() << <span class="stringliteral">" yet."</span>;</div>
|
|
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  }</div>
|
|
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  pmt_writer_.reset(<span class="keyword">new</span> <a class="code" href="../../de/d27/classshaka_1_1media_1_1mp2t_1_1H264ProgramMapTableWriter.html">H264ProgramMapTableWriter</a>(&pmt_continuity_counter_));</div>
|
|
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  DCHECK_EQ(stream_type, StreamType::kStreamAudio);</div>
|
|
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keyword">const</span> <a class="code" href="../../da/d4e/classshaka_1_1media_1_1AudioStreamInfo.html">AudioStreamInfo</a>& audio_stream_info =</div>
|
|
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keyword">static_cast<</span><span class="keyword">const </span><a class="code" href="../../da/d4e/classshaka_1_1media_1_1AudioStreamInfo.html">AudioStreamInfo</a>&<span class="keyword">></span>(stream_info);</div>
|
|
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keywordflow">if</span> (audio_stream_info.codec() != Codec::kCodecAAC) {</div>
|
|
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  LOG(ERROR) << <span class="stringliteral">"TsWriter cannot handle audio codec "</span></div>
|
|
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  << audio_stream_info.codec() << <span class="stringliteral">" yet."</span>;</div>
|
|
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  }</div>
|
|
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  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="l00193"></a><span class="lineno"> 193</span>  audio_stream_info.codec_config(), &pmt_continuity_counter_));</div>
|
|
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  }</div>
|
|
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span> </div>
|
|
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span> }</div>
|
|
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span> </div>
|
|
<div class="line"><a name="l00199"></a><span class="lineno"><a class="line" href="../../de/d64/classshaka_1_1media_1_1mp2t_1_1TsWriter.html#a9ba30b9cc1e4ae2992735709ae987c64"> 199</a></span> <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& file_name) {</div>
|
|
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keywordflow">if</span> (current_file_) {</div>
|
|
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  LOG(ERROR) << <span class="stringliteral">"File "</span> << current_file_->file_name() << <span class="stringliteral">" still open."</span>;</div>
|
|
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  }</div>
|
|
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  current_file_.reset(<a class="code" href="../../d3/d61/classshaka_1_1media_1_1File.html#aad6b77e734bb22d077ece029c9e735a4">File::Open</a>(file_name.c_str(), <span class="stringliteral">"w"</span>));</div>
|
|
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keywordflow">if</span> (!current_file_) {</div>
|
|
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  LOG(ERROR) << <span class="stringliteral">"Failed to open file "</span> << file_name;</div>
|
|
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  }</div>
|
|
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span> </div>
|
|
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <a class="code" href="../../dc/d41/classshaka_1_1media_1_1BufferWriter.html">BufferWriter</a> psi;</div>
|
|
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  WritePatToBuffer(kPat, arraysize(kPat), &pat_continuity_counter_, &psi);</div>
|
|
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordflow">if</span> (encrypted_) {</div>
|
|
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="keywordflow">if</span> (!pmt_writer_->EncryptedSegmentPmt(&psi)) {</div>
|
|
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  }</div>
|
|
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="keywordflow">if</span> (!pmt_writer_->ClearSegmentPmt(&psi)) {</div>
|
|
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  }</div>
|
|
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  }</div>
|
|
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> </div>
|
|
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="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="l00223"></a><span class="lineno"> 223</span>  LOG(ERROR) << <span class="stringliteral">"Failed to write PSI to file."</span>;</div>
|
|
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  }</div>
|
|
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> </div>
|
|
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span> }</div>
|
|
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span> </div>
|
|
<div class="line"><a name="l00230"></a><span class="lineno"><a class="line" href="../../de/d64/classshaka_1_1media_1_1mp2t_1_1TsWriter.html#afc47f61bce7cd4f8f6a6ea0ec2c96d4c"> 230</a></span> <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="l00231"></a><span class="lineno"> 231</span>  encrypted_ = <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span> }</div>
|
|
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span> </div>
|
|
<div class="line"><a name="l00234"></a><span class="lineno"><a class="line" href="../../de/d64/classshaka_1_1media_1_1mp2t_1_1TsWriter.html#ae9979f940d7a07127709576aa1f766a1"> 234</a></span> <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="l00235"></a><span class="lineno"> 235</span>  <span class="keywordflow">return</span> current_file_.release()->Close();</div>
|
|
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span> }</div>
|
|
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span> </div>
|
|
<div class="line"><a name="l00238"></a><span class="lineno"><a class="line" href="../../de/d64/classshaka_1_1media_1_1mp2t_1_1TsWriter.html#a19a7699df7ac129aedfdff074a8a18a3"> 238</a></span> <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<PesPacket> pes_packet) {</div>
|
|
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  DCHECK(current_file_);</div>
|
|
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="keywordflow">if</span> (!WritePesToFile(*pes_packet, &elementary_stream_continuity_counter_,</div>
|
|
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  current_file_.get())) {</div>
|
|
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  LOG(ERROR) << <span class="stringliteral">"Failed to write pes to file."</span>;</div>
|
|
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  }</div>
|
|
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span> </div>
|
|
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="comment">// No need to keep pes_packet around so not passing it anywhere.</span></div>
|
|
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span> }</div>
|
|
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span> </div>
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<div class="line"><a name="l00250"></a><span class="lineno"><a class="line" href="../../de/d64/classshaka_1_1media_1_1mp2t_1_1TsWriter.html#a6eeeadf8e60dc09378b5df7c62eb2bf0"> 250</a></span> <span class="keywordtype">void</span> <a class="code" href="../../de/d64/classshaka_1_1media_1_1mp2t_1_1TsWriter.html#a6eeeadf8e60dc09378b5df7c62eb2bf0">TsWriter::SetProgramMapTableWriterForTesting</a>(</div>
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<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  std::unique_ptr<ProgramMapTableWriter> table_writer) {</div>
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<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  pmt_writer_ = std::move(table_writer);</div>
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<div class="line"><a name="l00253"></a><span class="lineno"> 253</span> }</div>
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<div class="line"><a name="l00254"></a><span class="lineno"> 254</span> </div>
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<div class="line"><a name="l00255"></a><span class="lineno"> 255</span> } <span class="comment">// namespace mp2t</span></div>
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<div class="line"><a name="l00256"></a><span class="lineno"> 256</span> } <span class="comment">// namespace media</span></div>
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<div class="line"><a name="l00257"></a><span class="lineno"> 257</span> } <span class="comment">// namespace shaka</span></div>
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<div class="ttc" id="classshaka_1_1media_1_1File_html_aad6b77e734bb22d077ece029c9e735a4"><div class="ttname"><a href="../../d3/d61/classshaka_1_1media_1_1File.html#aad6b77e734bb22d077ece029c9e735a4">shaka::media::File::Open</a></div><div class="ttdeci">virtual bool Open()=0</div><div class="ttdoc">Internal open. Should not be used directly. </div></div>
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<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#l00053">stream_info.h:53</a></div></div>
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<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>
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<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 &file_name)</div><div class="ttdef"><b>Definition:</b> <a href="../../de/d13/ts__writer_8cc_source.html#l00199">ts_writer.cc:199</a></div></div>
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<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< PesPacket > pes_packet)</div><div class="ttdef"><b>Definition:</b> <a href="../../de/d13/ts__writer_8cc_source.html#l00238">ts_writer.cc:238</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1BufferWriter_html"><div class="ttname"><a href="../../dc/d41/classshaka_1_1media_1_1BufferWriter.html">shaka::media::BufferWriter</a></div><div class="ttdef"><b>Definition:</b> <a href="../../dd/dd2/buffer__writer_8h_source.html#l00022">buffer_writer.h:22</a></div></div>
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<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>
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<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< ProgramMapTableWriter > 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#l00250">ts_writer.cc:250</a></div></div>
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<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#l00234">ts_writer.cc:234</a></div></div>
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<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 &stream_info)</div><div class="ttdef"><b>Definition:</b> <a href="../../de/d13/ts__writer_8cc_source.html#l00165">ts_writer.cc:165</a></div></div>
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<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#l00016">video_stream_info.h:16</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1AudioStreamInfo_html"><div class="ttname"><a href="../../da/d4e/classshaka_1_1media_1_1AudioStreamInfo.html">shaka::media::AudioStreamInfo</a></div><div class="ttdoc">Holds audio stream information. </div><div class="ttdef"><b>Definition:</b> <a href="../../df/d32/audio__stream__info_8h_source.html#l00018">audio_stream_info.h:18</a></div></div>
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<div class="ttc" id="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>
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<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#l00230">ts_writer.cc:230</a></div></div>
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