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<div class="title">mp2t_media_parser.cc</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Copyright 2014 The Chromium Authors. All rights reserved.</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// Use of this source code is governed by a BSD-style license that can be</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// found in the LICENSE file.</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> </div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="preprocessor">#include "packager/media/formats/mp2t/mp2t_media_parser.h"</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/base/bind.h"</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#include "packager/base/memory/scoped_ptr.h"</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#include "packager/base/stl_util.h"</span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include "packager/media/base/media_sample.h"</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include "packager/media/base/stream_info.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/formats/mp2t/es_parser.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/formats/mp2t/es_parser_adts.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/formats/mp2t/es_parser_h264.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/formats/mp2t/mp2t_common.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.h"</span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include "packager/media/formats/mp2t/ts_section.h"</span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include "packager/media/formats/mp2t/ts_section_pat.h"</span></div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include "packager/media/formats/mp2t/ts_section_pes.h"</span></div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include "packager/media/formats/mp2t/ts_section_pmt.h"</span></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>edash_packager {</div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="keyword">namespace </span>media {</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="keyword">namespace </span>mp2t {</div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="keyword">enum</span> StreamType {</div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <span class="comment">// ISO-13818.1 / ITU H.222 Table 2.34 "Stream type assignments"</span></div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  kStreamTypeMpeg1Audio = 0x3,</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  kStreamTypeAAC = 0xf,</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  kStreamTypeAVC = 0x1b,</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> };</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="keyword">class </span>PidState {</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keyword">enum</span> PidType {</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  kPidPat,</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  kPidPmt,</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  kPidAudioPes,</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  kPidVideoPes,</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  };</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  PidState(<span class="keywordtype">int</span> pid, PidType pid_type,</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  scoped_ptr<TsSection> section_parser);</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="comment">// Extract the content of the TS packet and parse it.</span></div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="comment">// Return true if successful.</span></div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordtype">bool</span> PushTsPacket(<span class="keyword">const</span> TsPacket& ts_packet);</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="comment">// Flush the PID state (possibly emitting some pending frames)</span></div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="comment">// and reset its state.</span></div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordtype">void</span> Flush();</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="comment">// Enable/disable the PID.</span></div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="comment">// Disabling a PID will reset its state and ignore any further incoming TS</span></div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="comment">// packets.</span></div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordtype">void</span> Enable();</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordtype">void</span> Disable();</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keywordtype">bool</span> IsEnabled() <span class="keyword">const</span>;</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> </div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  PidType pid_type()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> pid_type_; }</div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  scoped_refptr<StreamInfo>& config() { <span class="keywordflow">return</span> config_; }</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordtype">void</span> set_config(<span class="keyword">const</span> scoped_refptr<StreamInfo>& config) { config_ = config; }</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> </div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  SampleQueue& sample_queue() { <span class="keywordflow">return</span> sample_queue_; }</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>  <span class="keyword">private</span>:</div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordtype">void</span> ResetState();</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> </div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordtype">int</span> pid_;</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  PidType pid_type_;</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  scoped_ptr<TsSection> section_parser_;</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> </div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordtype">bool</span> enable_;</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordtype">int</span> continuity_counter_;</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  scoped_refptr<StreamInfo> config_;</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  SampleQueue sample_queue_;</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> };</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> </div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> PidState::PidState(<span class="keywordtype">int</span> pid, PidType pid_type,</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  scoped_ptr<TsSection> section_parser)</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  : pid_(pid),</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  pid_type_(pid_type),</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  section_parser_(section_parser.Pass()),</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  enable_(false),</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  continuity_counter_(-1) {</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  DCHECK(section_parser_);</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> PidState::PushTsPacket(<span class="keyword">const</span> TsPacket& ts_packet) {</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  DCHECK_EQ(ts_packet.pid(), pid_);</div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> </div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="comment">// The current PID is not part of the PID filter,</span></div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="comment">// just discard the incoming TS packet.</span></div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordflow">if</span> (!enable_)</div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keywordtype">int</span> expected_continuity_counter = (continuity_counter_ + 1) % 16;</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keywordflow">if</span> (continuity_counter_ >= 0 &&</div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  ts_packet.continuity_counter() != expected_continuity_counter) {</div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  DVLOG(1) << <span class="stringliteral">"TS discontinuity detected for pid: "</span> << pid_;</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="comment">// TODO(tinskip): Handle discontinuity better.</span></div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  }</div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> </div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordtype">bool</span> status = section_parser_->Parse(</div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  ts_packet.payload_unit_start_indicator(),</div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  ts_packet.payload(),</div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  ts_packet.payload_size());</div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> </div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="comment">// At the minimum, when parsing failed, auto reset the section parser.</span></div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="comment">// Components that use the Mp2tMediaParser can take further action if needed.</span></div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keywordflow">if</span> (!status) {</div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  DVLOG(1) << <span class="stringliteral">"Parsing failed for pid = "</span> << pid_;</div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  ResetState();</div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  }</div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> </div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keywordflow">return</span> status;</div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span> }</div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> </div>
|
|
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> <span class="keywordtype">void</span> PidState::Flush() {</div>
|
|
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  section_parser_->Flush();</div>
|
|
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  ResetState();</div>
|
|
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> }</div>
|
|
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> </div>
|
|
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="keywordtype">void</span> PidState::Enable() {</div>
|
|
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  enable_ = <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> }</div>
|
|
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> </div>
|
|
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> <span class="keywordtype">void</span> PidState::Disable() {</div>
|
|
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordflow">if</span> (!enable_)</div>
|
|
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordflow">return</span>;</div>
|
|
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> </div>
|
|
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  ResetState();</div>
|
|
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  enable_ = <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> }</div>
|
|
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> </div>
|
|
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> <span class="keywordtype">bool</span> PidState::IsEnabled()<span class="keyword"> const </span>{</div>
|
|
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordflow">return</span> enable_;</div>
|
|
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> }</div>
|
|
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span> </div>
|
|
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> <span class="keywordtype">void</span> PidState::ResetState() {</div>
|
|
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  section_parser_->Reset();</div>
|
|
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  continuity_counter_ = -1;</div>
|
|
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span> }</div>
|
|
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> </div>
|
|
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> Mp2tMediaParser::Mp2tMediaParser()</div>
|
|
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  : sbr_in_mimetype_(false),</div>
|
|
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  is_initialized_(false) {</div>
|
|
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> }</div>
|
|
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> </div>
|
|
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span> Mp2tMediaParser::~Mp2tMediaParser() {</div>
|
|
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  STLDeleteValues(&pids_);</div>
|
|
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span> }</div>
|
|
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> </div>
|
|
<div class="line"><a name="l00156"></a><span class="lineno"><a class="line" href="../../dc/dab/classedash__packager_1_1media_1_1mp2t_1_1Mp2tMediaParser.html#abfcd1be5f00d8091feb044e7199966f5"> 156</a></span> <span class="keywordtype">void</span> <a class="code" href="../../dc/dab/classedash__packager_1_1media_1_1mp2t_1_1Mp2tMediaParser.html#abfcd1be5f00d8091feb044e7199966f5">Mp2tMediaParser::Init</a>(</div>
|
|
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keyword">const</span> InitCB& init_cb,</div>
|
|
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keyword">const</span> NewSampleCB& new_sample_cb,</div>
|
|
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <a class="code" href="../../d9/d8b/classedash__packager_1_1media_1_1KeySource.html">KeySource</a>* decryption_key_source) {</div>
|
|
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  DCHECK(!is_initialized_);</div>
|
|
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  DCHECK(init_cb_.is_null());</div>
|
|
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  DCHECK(!init_cb.is_null());</div>
|
|
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  DCHECK(!new_sample_cb.is_null());</div>
|
|
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> </div>
|
|
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  init_cb_ = init_cb;</div>
|
|
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  new_sample_cb_ = new_sample_cb;</div>
|
|
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> }</div>
|
|
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> </div>
|
|
<div class="line"><a name="l00169"></a><span class="lineno"><a class="line" href="../../dc/dab/classedash__packager_1_1media_1_1mp2t_1_1Mp2tMediaParser.html#a12cf8261396cfa4753967d7f0acb2587"> 169</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../dc/dab/classedash__packager_1_1media_1_1mp2t_1_1Mp2tMediaParser.html#a12cf8261396cfa4753967d7f0acb2587">Mp2tMediaParser::Flush</a>() {</div>
|
|
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  DVLOG(1) << <span class="stringliteral">"Mp2tMediaParser::Flush"</span>;</div>
|
|
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> </div>
|
|
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="comment">// Flush the buffers and reset the pids.</span></div>
|
|
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="keywordflow">for</span> (std::map<int, PidState*>::iterator it = pids_.begin();</div>
|
|
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  it != pids_.end(); ++it) {</div>
|
|
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  DVLOG(1) << <span class="stringliteral">"Flushing PID: "</span> << it->first;</div>
|
|
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  PidState* pid_state = it->second;</div>
|
|
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  pid_state->Flush();</div>
|
|
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  }</div>
|
|
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keywordtype">bool</span> result = EmitRemainingSamples();</div>
|
|
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  STLDeleteValues(&pids_);</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>  <span class="comment">// Remove any bytes left in the TS buffer.</span></div>
|
|
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="comment">// (i.e. any partial TS packet => less than 188 bytes).</span></div>
|
|
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  ts_byte_queue_.<a class="code" href="../../d8/d2e/classedash__packager_1_1media_1_1ByteQueue.html#a452485879d303d5c8654e1b184bc1235">Reset</a>();</div>
|
|
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keywordflow">return</span> result;</div>
|
|
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> }</div>
|
|
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span> </div>
|
|
<div class="line"><a name="l00188"></a><span class="lineno"><a class="line" href="../../dc/dab/classedash__packager_1_1media_1_1mp2t_1_1Mp2tMediaParser.html#afaf26651a1ae06523f0243e0f73f565b"> 188</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../dc/dab/classedash__packager_1_1media_1_1mp2t_1_1Mp2tMediaParser.html#afaf26651a1ae06523f0243e0f73f565b">Mp2tMediaParser::Parse</a>(<span class="keyword">const</span> uint8_t* buf, <span class="keywordtype">int</span> size) {</div>
|
|
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  DVLOG(1) << <span class="stringliteral">"Mp2tMediaParser::Parse size="</span> << size;</div>
|
|
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span> </div>
|
|
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="comment">// Add the data to the parser state.</span></div>
|
|
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  ts_byte_queue_.<a class="code" href="../../d8/d2e/classedash__packager_1_1media_1_1ByteQueue.html#afa47d3dc54862cee101d4be8746de6eb">Push</a>(buf, size);</div>
|
|
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> </div>
|
|
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keywordflow">while</span> (<span class="keyword">true</span>) {</div>
|
|
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <span class="keyword">const</span> uint8_t* ts_buffer;</div>
|
|
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="keywordtype">int</span> ts_buffer_size;</div>
|
|
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  ts_byte_queue_.<a class="code" href="../../d8/d2e/classedash__packager_1_1media_1_1ByteQueue.html#a8253df160751462f3b75290a7c525e56">Peek</a>(&ts_buffer, &ts_buffer_size);</div>
|
|
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="keywordflow">if</span> (ts_buffer_size < TsPacket::kPacketSize)</div>
|
|
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span> </div>
|
|
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="comment">// Synchronization.</span></div>
|
|
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keywordtype">int</span> skipped_bytes = TsPacket::Sync(ts_buffer, ts_buffer_size);</div>
|
|
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keywordflow">if</span> (skipped_bytes > 0) {</div>
|
|
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  DVLOG(1) << <span class="stringliteral">"Packet not aligned on a TS syncword:"</span></div>
|
|
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  << <span class="stringliteral">" skipped_bytes="</span> << skipped_bytes;</div>
|
|
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  ts_byte_queue_.<a class="code" href="../../d8/d2e/classedash__packager_1_1media_1_1ByteQueue.html#acac5c7874703c86ba77a50d3be0671d2">Pop</a>(skipped_bytes);</div>
|
|
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="keywordflow">continue</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>  <span class="comment">// Parse the TS header, skipping 1 byte if the header is invalid.</span></div>
|
|
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  scoped_ptr<TsPacket> ts_packet(TsPacket::Parse(ts_buffer, ts_buffer_size));</div>
|
|
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordflow">if</span> (!ts_packet) {</div>
|
|
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  DVLOG(1) << <span class="stringliteral">"Error: invalid TS packet"</span>;</div>
|
|
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  ts_byte_queue_.<a class="code" href="../../d8/d2e/classedash__packager_1_1media_1_1ByteQueue.html#acac5c7874703c86ba77a50d3be0671d2">Pop</a>(1);</div>
|
|
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keywordflow">continue</span>;</div>
|
|
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  }</div>
|
|
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  DVLOG(LOG_LEVEL_TS)</div>
|
|
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  << <span class="stringliteral">"Processing PID="</span> << ts_packet->pid()</div>
|
|
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  << <span class="stringliteral">" start_unit="</span> << ts_packet->payload_unit_start_indicator();</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>  <span class="comment">// Parse the section.</span></div>
|
|
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  std::map<int, PidState*>::iterator it = pids_.find(ts_packet->pid());</div>
|
|
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keywordflow">if</span> (it == pids_.end() &&</div>
|
|
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  ts_packet->pid() == TsSection::kPidPat) {</div>
|
|
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="comment">// Create the PAT state here if needed.</span></div>
|
|
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  scoped_ptr<TsSection> pat_section_parser(</div>
|
|
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="keyword">new</span> <a class="code" href="../../dd/d0e/classedash__packager_1_1media_1_1mp2t_1_1TsSectionPat.html">TsSectionPat</a>(</div>
|
|
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  base::Bind(&Mp2tMediaParser::RegisterPmt,</div>
|
|
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  base::Unretained(<span class="keyword">this</span>))));</div>
|
|
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  scoped_ptr<PidState> pat_pid_state(</div>
|
|
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="keyword">new</span> PidState(ts_packet->pid(), PidState::kPidPat,</div>
|
|
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  pat_section_parser.Pass()));</div>
|
|
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  pat_pid_state->Enable();</div>
|
|
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  it = pids_.insert(</div>
|
|
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  std::pair<int, PidState*>(ts_packet->pid(),</div>
|
|
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  pat_pid_state.release())).first;</div>
|
|
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  }</div>
|
|
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span> </div>
|
|
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="keywordflow">if</span> (it != pids_.end()) {</div>
|
|
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="keywordflow">if</span> (!it->second->PushTsPacket(*ts_packet))</div>
|
|
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  DVLOG(LOG_LEVEL_TS) << <span class="stringliteral">"Ignoring TS packet for pid: "</span> << ts_packet->pid();</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">// Go to the next packet.</span></div>
|
|
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  ts_byte_queue_.<a class="code" href="../../d8/d2e/classedash__packager_1_1media_1_1ByteQueue.html#acac5c7874703c86ba77a50d3be0671d2">Pop</a>(TsPacket::kPacketSize);</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>
|
|
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="comment">// Emit the A/V buffers that kept accumulating during TS parsing.</span></div>
|
|
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="keywordflow">return</span> EmitRemainingSamples();</div>
|
|
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span> }</div>
|
|
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span> </div>
|
|
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span> <span class="keywordtype">void</span> Mp2tMediaParser::RegisterPmt(<span class="keywordtype">int</span> program_number, <span class="keywordtype">int</span> pmt_pid) {</div>
|
|
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  DVLOG(1) << <span class="stringliteral">"RegisterPmt:"</span></div>
|
|
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  << <span class="stringliteral">" program_number="</span> << program_number</div>
|
|
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  << <span class="stringliteral">" pmt_pid="</span> << pmt_pid;</div>
|
|
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span> </div>
|
|
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <span class="comment">// Only one TS program is allowed. Ignore the incoming program map table,</span></div>
|
|
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  <span class="comment">// if there is already one registered.</span></div>
|
|
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="keywordflow">for</span> (std::map<int, PidState*>::iterator it = pids_.begin();</div>
|
|
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  it != pids_.end(); ++it) {</div>
|
|
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  PidState* pid_state = it->second;</div>
|
|
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  <span class="keywordflow">if</span> (pid_state->pid_type() == PidState::kPidPmt) {</div>
|
|
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  DVLOG_IF(1, pmt_pid != it->first) << <span class="stringliteral">"More than one program is defined"</span>;</div>
|
|
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  <span class="keywordflow">return</span>;</div>
|
|
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  }</div>
|
|
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  }</div>
|
|
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span> </div>
|
|
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="comment">// Create the PMT state here if needed.</span></div>
|
|
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  DVLOG(1) << <span class="stringliteral">"Create a new PMT parser"</span>;</div>
|
|
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  scoped_ptr<TsSection> pmt_section_parser(</div>
|
|
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  <span class="keyword">new</span> TsSectionPmt(</div>
|
|
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  base::Bind(&Mp2tMediaParser::RegisterPes,</div>
|
|
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  base::Unretained(<span class="keyword">this</span>), pmt_pid)));</div>
|
|
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  scoped_ptr<PidState> pmt_pid_state(</div>
|
|
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  <span class="keyword">new</span> PidState(pmt_pid, PidState::kPidPmt, pmt_section_parser.Pass()));</div>
|
|
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  pmt_pid_state->Enable();</div>
|
|
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  pids_.insert(std::pair<int, PidState*>(pmt_pid, pmt_pid_state.release()));</div>
|
|
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span> }</div>
|
|
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span> </div>
|
|
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span> <span class="keywordtype">void</span> Mp2tMediaParser::RegisterPes(<span class="keywordtype">int</span> pmt_pid,</div>
|
|
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <span class="keywordtype">int</span> pes_pid,</div>
|
|
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="keywordtype">int</span> stream_type) {</div>
|
|
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  DVLOG(1) << <span class="stringliteral">"RegisterPes:"</span></div>
|
|
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  << <span class="stringliteral">" pes_pid="</span> << pes_pid</div>
|
|
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  << <span class="stringliteral">" stream_type="</span> << std::hex << stream_type << std::dec;</div>
|
|
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  std::map<int, PidState*>::iterator it = pids_.find(pes_pid);</div>
|
|
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="keywordflow">if</span> (it != pids_.end())</div>
|
|
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="keywordflow">return</span>;</div>
|
|
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span> </div>
|
|
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <span class="comment">// Create a stream parser corresponding to the stream type.</span></div>
|
|
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  <span class="keywordtype">bool</span> is_audio = <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  scoped_ptr<EsParser> es_parser;</div>
|
|
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  <span class="keywordflow">if</span> (stream_type == kStreamTypeAVC) {</div>
|
|
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  es_parser.reset(</div>
|
|
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <span class="keyword">new</span> EsParserH264(</div>
|
|
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  pes_pid,</div>
|
|
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  base::Bind(&Mp2tMediaParser::OnNewStreamInfo,</div>
|
|
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  base::Unretained(<span class="keyword">this</span>)),</div>
|
|
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  base::Bind(&Mp2tMediaParser::OnEmitSample,</div>
|
|
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  base::Unretained(<span class="keyword">this</span>))));</div>
|
|
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (stream_type == kStreamTypeAAC) {</div>
|
|
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  es_parser.reset(</div>
|
|
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  <span class="keyword">new</span> EsParserAdts(</div>
|
|
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  pes_pid,</div>
|
|
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  base::Bind(&Mp2tMediaParser::OnNewStreamInfo,</div>
|
|
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  base::Unretained(<span class="keyword">this</span>)),</div>
|
|
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  base::Bind(&Mp2tMediaParser::OnEmitSample,</div>
|
|
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  base::Unretained(<span class="keyword">this</span>)),</div>
|
|
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  sbr_in_mimetype_));</div>
|
|
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  is_audio = <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <span class="keywordflow">return</span>;</div>
|
|
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  }</div>
|
|
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span> </div>
|
|
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="comment">// Create the PES state here.</span></div>
|
|
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  DVLOG(1) << <span class="stringliteral">"Create a new PES state"</span>;</div>
|
|
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  scoped_ptr<TsSection> pes_section_parser(</div>
|
|
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="keyword">new</span> TsSectionPes(es_parser.Pass()));</div>
|
|
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  PidState::PidType pid_type =</div>
|
|
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  is_audio ? PidState::kPidAudioPes : PidState::kPidVideoPes;</div>
|
|
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  scoped_ptr<PidState> pes_pid_state(</div>
|
|
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="keyword">new</span> PidState(pes_pid, pid_type, pes_section_parser.Pass()));</div>
|
|
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  pes_pid_state->Enable();</div>
|
|
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  pids_.insert(std::pair<int, PidState*>(pes_pid, pes_pid_state.release()));</div>
|
|
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span> }</div>
|
|
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span> </div>
|
|
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span> <span class="keywordtype">void</span> Mp2tMediaParser::OnNewStreamInfo(</div>
|
|
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <span class="keyword">const</span> scoped_refptr<StreamInfo>& new_stream_info) {</div>
|
|
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  DCHECK(new_stream_info);</div>
|
|
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  DVLOG(1) << <span class="stringliteral">"OnVideoConfigChanged for pid="</span> << new_stream_info->track_id();</div>
|
|
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span> </div>
|
|
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  PidMap::iterator pid_state = pids_.find(new_stream_info->track_id());</div>
|
|
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  <span class="keywordflow">if</span> (pid_state == pids_.end()) {</div>
|
|
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  LOG(ERROR) << <span class="stringliteral">"PID State for new stream not found (pid = "</span></div>
|
|
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  << new_stream_info->track_id() << <span class="stringliteral">")."</span>;</div>
|
|
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  <span class="keywordflow">return</span>;</div>
|
|
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  }</div>
|
|
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span> </div>
|
|
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  <span class="comment">// Set the stream configuration information for the PID.</span></div>
|
|
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  pid_state->second->set_config(new_stream_info);</div>
|
|
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span> </div>
|
|
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  <span class="comment">// Finish initialization if all streams have configs.</span></div>
|
|
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  FinishInitializationIfNeeded();</div>
|
|
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span> }</div>
|
|
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span> </div>
|
|
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span> <span class="keywordtype">bool</span> Mp2tMediaParser::FinishInitializationIfNeeded() {</div>
|
|
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  <span class="comment">// Nothing to be done if already initialized.</span></div>
|
|
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <span class="keywordflow">if</span> (is_initialized_)</div>
|
|
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span> </div>
|
|
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  <span class="comment">// Wait for more data to come to finish initialization.</span></div>
|
|
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  <span class="keywordflow">if</span> (pids_.empty())</div>
|
|
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span> </div>
|
|
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  std::vector<scoped_refptr<StreamInfo> > all_stream_info;</div>
|
|
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  uint32_t num_es(0);</div>
|
|
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <span class="keywordflow">for</span> (PidMap::const_iterator iter = pids_.begin(); iter != pids_.end();</div>
|
|
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  ++iter) {</div>
|
|
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  <span class="keywordflow">if</span> (((iter->second->pid_type() == PidState::kPidAudioPes) ||</div>
|
|
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  (iter->second->pid_type() == PidState::kPidVideoPes))) {</div>
|
|
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  ++num_es;</div>
|
|
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  <span class="keywordflow">if</span> (iter->second->config())</div>
|
|
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  all_stream_info.push_back(iter->second->config());</div>
|
|
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  }</div>
|
|
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  }</div>
|
|
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <span class="keywordflow">if</span> (num_es && (all_stream_info.size() == num_es)) {</div>
|
|
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <span class="comment">// All stream configurations have been received. Initialization can</span></div>
|
|
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  <span class="comment">// be completed.</span></div>
|
|
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  init_cb_.Run(all_stream_info);</div>
|
|
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  DVLOG(1) << <span class="stringliteral">"Mpeg2TS stream parser initialization done"</span>;</div>
|
|
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  is_initialized_ = <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  }</div>
|
|
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span> }</div>
|
|
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span> </div>
|
|
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span> <span class="keywordtype">void</span> Mp2tMediaParser::OnEmitSample(</div>
|
|
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  uint32_t pes_pid,</div>
|
|
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  <span class="keyword">const</span> scoped_refptr<MediaSample>& new_sample) {</div>
|
|
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  DCHECK(new_sample);</div>
|
|
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  DVLOG(LOG_LEVEL_ES)</div>
|
|
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  << <span class="stringliteral">"OnEmitSample: "</span></div>
|
|
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  << <span class="stringliteral">" pid="</span></div>
|
|
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  << pes_pid</div>
|
|
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  << <span class="stringliteral">" size="</span></div>
|
|
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  << new_sample->data_size()</div>
|
|
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  << <span class="stringliteral">" dts="</span></div>
|
|
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  << new_sample->dts()</div>
|
|
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  << <span class="stringliteral">" pts="</span></div>
|
|
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  << new_sample->pts();</div>
|
|
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span> </div>
|
|
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  <span class="comment">// Add the sample to the appropriate PID sample queue.</span></div>
|
|
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  PidMap::iterator pid_state = pids_.find(pes_pid);</div>
|
|
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  <span class="keywordflow">if</span> (pid_state == pids_.end()) {</div>
|
|
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  LOG(ERROR) << <span class="stringliteral">"PID State for new sample not found (pid = "</span></div>
|
|
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  << pes_pid << <span class="stringliteral">")."</span>;</div>
|
|
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  <span class="keywordflow">return</span>;</div>
|
|
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  }</div>
|
|
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  pid_state->second->sample_queue().push_back(new_sample);</div>
|
|
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span> }</div>
|
|
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span> </div>
|
|
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span> <span class="keywordtype">bool</span> Mp2tMediaParser::EmitRemainingSamples() {</div>
|
|
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  DVLOG(LOG_LEVEL_ES) << <span class="stringliteral">"Mp2tMediaParser::EmitRemainingBuffers"</span>;</div>
|
|
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span> </div>
|
|
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  <span class="comment">// No buffer should be sent until fully initialized.</span></div>
|
|
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  <span class="keywordflow">if</span> (!is_initialized_)</div>
|
|
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span> </div>
|
|
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  <span class="comment">// Buffer emission.</span></div>
|
|
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  <span class="keywordflow">for</span> (PidMap::const_iterator pid_iter = pids_.begin(); pid_iter != pids_.end();</div>
|
|
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  ++pid_iter) {</div>
|
|
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  SampleQueue& sample_queue = pid_iter->second->sample_queue();</div>
|
|
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  <span class="keywordflow">for</span> (SampleQueue::iterator sample_iter = sample_queue.begin();</div>
|
|
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  sample_iter != sample_queue.end();</div>
|
|
<div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  ++sample_iter) {</div>
|
|
<div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  <span class="keywordflow">if</span> (!new_sample_cb_.Run(pid_iter->first, *sample_iter)) {</div>
|
|
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  <span class="comment">// Error processing sample. Propagate error condition.</span></div>
|
|
<div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  }</div>
|
|
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  }</div>
|
|
<div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  sample_queue.clear();</div>
|
|
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  }</div>
|
|
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span> </div>
|
|
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span> }</div>
|
|
<div class="line"><a name="l00427"></a><span class="lineno"> 427</span> </div>
|
|
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span> } <span class="comment">// namespace mp2t</span></div>
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<div class="line"><a name="l00429"></a><span class="lineno"> 429</span> } <span class="comment">// namespace media</span></div>
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<div class="line"><a name="l00430"></a><span class="lineno"> 430</span> } <span class="comment">// namespace edash_packager</span></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1mp2t_1_1Mp2tMediaParser_html_a12cf8261396cfa4753967d7f0acb2587"><div class="ttname"><a href="../../dc/dab/classedash__packager_1_1media_1_1mp2t_1_1Mp2tMediaParser.html#a12cf8261396cfa4753967d7f0acb2587">edash_packager::media::mp2t::Mp2tMediaParser::Flush</a></div><div class="ttdeci">bool Flush() override WARN_UNUSED_RESULT</div><div class="ttdef"><b>Definition:</b> <a href="../../d1/d74/mp2t__media__parser_8cc_source.html#l00169">mp2t_media_parser.cc:169</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1ByteQueue_html_afa47d3dc54862cee101d4be8746de6eb"><div class="ttname"><a href="../../d8/d2e/classedash__packager_1_1media_1_1ByteQueue.html#afa47d3dc54862cee101d4be8746de6eb">edash_packager::media::ByteQueue::Push</a></div><div class="ttdeci">void Push(const uint8_t *data, int size)</div><div class="ttdoc">Append new bytes to the end of the queue. </div><div class="ttdef"><b>Definition:</b> <a href="../../d7/df9/byte__queue_8cc_source.html#l00029">byte_queue.cc:29</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1ByteQueue_html_acac5c7874703c86ba77a50d3be0671d2"><div class="ttname"><a href="../../d8/d2e/classedash__packager_1_1media_1_1ByteQueue.html#acac5c7874703c86ba77a50d3be0671d2">edash_packager::media::ByteQueue::Pop</a></div><div class="ttdeci">void Pop(int count)</div><div class="ttdef"><b>Definition:</b> <a href="../../d7/df9/byte__queue_8cc_source.html#l00070">byte_queue.cc:70</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1mp2t_1_1TsSectionPat_html"><div class="ttname"><a href="../../dd/d0e/classedash__packager_1_1media_1_1mp2t_1_1TsSectionPat.html">edash_packager::media::mp2t::TsSectionPat</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d6/da0/ts__section__pat_8h_source.html#l00016">ts_section_pat.h:16</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1KeySource_html"><div class="ttname"><a href="../../d9/d8b/classedash__packager_1_1media_1_1KeySource.html">edash_packager::media::KeySource</a></div><div class="ttdoc">KeySource is responsible for encryption key acquisition. </div><div class="ttdef"><b>Definition:</b> <a href="../../dc/d3f/key__source_8h_source.html#l00029">key_source.h:29</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1mp2t_1_1Mp2tMediaParser_html_afaf26651a1ae06523f0243e0f73f565b"><div class="ttname"><a href="../../dc/dab/classedash__packager_1_1media_1_1mp2t_1_1Mp2tMediaParser.html#afaf26651a1ae06523f0243e0f73f565b">edash_packager::media::mp2t::Mp2tMediaParser::Parse</a></div><div class="ttdeci">bool Parse(const uint8_t *buf, int size) override WARN_UNUSED_RESULT</div><div class="ttdef"><b>Definition:</b> <a href="../../d1/d74/mp2t__media__parser_8cc_source.html#l00188">mp2t_media_parser.cc:188</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1ByteQueue_html_a452485879d303d5c8654e1b184bc1235"><div class="ttname"><a href="../../d8/d2e/classedash__packager_1_1media_1_1ByteQueue.html#a452485879d303d5c8654e1b184bc1235">edash_packager::media::ByteQueue::Reset</a></div><div class="ttdeci">void Reset()</div><div class="ttdoc">Reset the queue to the empty state. </div><div class="ttdef"><b>Definition:</b> <a href="../../d7/df9/byte__queue_8cc_source.html#l00024">byte_queue.cc:24</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1mp2t_1_1Mp2tMediaParser_html_abfcd1be5f00d8091feb044e7199966f5"><div class="ttname"><a href="../../dc/dab/classedash__packager_1_1media_1_1mp2t_1_1Mp2tMediaParser.html#abfcd1be5f00d8091feb044e7199966f5">edash_packager::media::mp2t::Mp2tMediaParser::Init</a></div><div class="ttdeci">void Init(const InitCB &init_cb, const NewSampleCB &new_sample_cb, KeySource *decryption_key_source) override</div><div class="ttdef"><b>Definition:</b> <a href="../../d1/d74/mp2t__media__parser_8cc_source.html#l00156">mp2t_media_parser.cc:156</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1ByteQueue_html_a8253df160751462f3b75290a7c525e56"><div class="ttname"><a href="../../d8/d2e/classedash__packager_1_1media_1_1ByteQueue.html#a8253df160751462f3b75290a7c525e56">edash_packager::media::ByteQueue::Peek</a></div><div class="ttdeci">void Peek(const uint8_t **data, int *size) const </div><div class="ttdef"><b>Definition:</b> <a href="../../d7/df9/byte__queue_8cc_source.html#l00063">byte_queue.cc:63</a></div></div>
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</div><!-- fragment --></div><!-- contents -->
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Generated on Sat Feb 27 2016 01:13:02 for DASH Media Packaging SDK by  <a href="http://www.doxygen.org/index.html">
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