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<div class="title">webm_cluster_parser.h</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">#ifndef MEDIA_FORMATS_WEBM_WEBM_CLUSTER_PARSER_H_</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="preprocessor"></span><span class="preprocessor">#define MEDIA_FORMATS_WEBM_WEBM_CLUSTER_PARSER_H_</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor"></span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#include <deque></span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#include <map></span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include <set></span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include <string></span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> </div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include "packager/base/memory/scoped_ptr.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/media_parser.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/media_sample.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/webm/webm_parser.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/webm/webm_tracks_parser.h"</span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="keyword">namespace </span>edash_packager {</div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="keyword">namespace </span>media {</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"><a class="line" href="../../db/da0/classedash__packager_1_1media_1_1WebMClusterParser.html"> 22</a></span> <span class="keyword">class </span><a class="code" href="../../db/da0/classedash__packager_1_1media_1_1WebMClusterParser.html">WebMClusterParser</a> : <span class="keyword">public</span> <a class="code" href="../../de/da5/classedash__packager_1_1media_1_1WebMParserClient.html">WebMParserClient</a> {</div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <span class="keyword">enum</span> {</div>
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<div class="line"><a name="l00028"></a><span class="lineno"><a class="line" href="../../db/da0/classedash__packager_1_1media_1_1WebMClusterParser.html#a9a9e4f3a5a1360d947528a553397779eadcde56d3670a152494df7b401c6db1dd"> 28</a></span>  <a class="code" href="../../db/da0/classedash__packager_1_1media_1_1WebMClusterParser.html#a9a9e4f3a5a1360d947528a553397779eadcde56d3670a152494df7b401c6db1dd">kDefaultAudioBufferDurationInMs</a> = 23,</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div>
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<div class="line"><a name="l00032"></a><span class="lineno"><a class="line" href="../../db/da0/classedash__packager_1_1media_1_1WebMClusterParser.html#a9a9e4f3a5a1360d947528a553397779ea32a5cc2c19fb1598071109cad939311a"> 32</a></span>  <a class="code" href="../../db/da0/classedash__packager_1_1media_1_1WebMClusterParser.html#a9a9e4f3a5a1360d947528a553397779ea32a5cc2c19fb1598071109cad939311a">kDefaultVideoBufferDurationInMs</a> = 63</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  };</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div>
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<div class="line"><a name="l00039"></a><span class="lineno"><a class="line" href="../../db/da0/classedash__packager_1_1media_1_1WebMClusterParser.html#ab08c27583d9585af4a71d81bcb4f6772"> 39</a></span>  <span class="keyword">static</span> <span class="keyword">const</span> uint16_t <a class="code" href="../../db/da0/classedash__packager_1_1media_1_1WebMClusterParser.html#ab08c27583d9585af4a71d81bcb4f6772">kOpusFrameDurationsMu</a>[];</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>  <span class="keyword">private</span>:</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="comment">// Helper class that manages per-track state.</span></div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keyword">class </span>Track {</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  Track(<span class="keywordtype">int</span> track_num,</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordtype">bool</span> is_video,</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  int64_t default_duration,</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keyword">const</span> <a class="code" href="../../dc/d48/classedash__packager_1_1media_1_1MediaParser.html#a1628c19a91f1b8ae123f7350936bfe32">MediaParser::NewSampleCB</a>& new_sample_cb);</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  ~Track();</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordtype">int</span> track_num()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> track_num_; }</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">// If |last_added_buffer_missing_duration_| is set, updates its duration</span></div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="comment">// relative to |buffer|'s timestamp, and emits it and unsets</span></div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="comment">// |last_added_buffer_missing_duration_|. Otherwise, if |buffer| is missing</span></div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="comment">// duration, saves |buffer| into |last_added_buffer_missing_duration_|.</span></div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordtype">bool</span> EmitBuffer(<span class="keyword">const</span> scoped_refptr<MediaSample>& buffer);</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="comment">// If |last_added_buffer_missing_duration_| is set, updates its duration to</span></div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="comment">// be non-kNoTimestamp value of |estimated_next_frame_duration_| or a</span></div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="comment">// hard-coded default, then emits it and unsets</span></div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="comment">// |last_added_buffer_missing_duration_|. (This method helps stream parser</span></div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="comment">// emit all buffers in a media segment before signaling end of segment.)</span></div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keywordtype">void</span> ApplyDurationEstimateIfNeeded();</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> </div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="comment">// Clears all buffer state, including any possibly held-aside buffer that</span></div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="comment">// was missing duration.</span></div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordtype">void</span> <a class="code" href="../../db/da0/classedash__packager_1_1media_1_1WebMClusterParser.html#afd772eabfa31927d47dacfb219fca3ad">Reset</a>();</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>  int64_t default_duration()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> default_duration_; }</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keyword">private</span>:</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="comment">// Helper that sanity-checks |buffer| duration, updates</span></div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="comment">// |estimated_next_frame_duration_|, and emits |buffer|.</span></div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="comment">// Returns false if |buffer| failed sanity check and therefore was not</span></div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="comment">// emitted. Returns true otherwise.</span></div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordtype">bool</span> EmitBufferHelp(<span class="keyword">const</span> scoped_refptr<MediaSample>& buffer);</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>  <span class="comment">// Helper that calculates the buffer duration to use in</span></div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="comment">// ApplyDurationEstimateIfNeeded().</span></div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  int64_t GetDurationEstimate();</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> </div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="comment">// Counts the number of estimated durations used in this track. Used to</span></div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="comment">// prevent log spam for LOG()s about estimated duration.</span></div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordtype">int</span> num_duration_estimates_ = 0;</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> </div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordtype">int</span> track_num_;</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordtype">bool</span> is_video_;</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="comment">// Parsed track buffers, each with duration and in (decode) timestamp order,</span></div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="comment">// that have not yet been emitted. Note that up to one additional buffer</span></div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="comment">// missing duration may be tracked by |last_added_buffer_missing_duration_|.</span></div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  scoped_refptr<MediaSample> last_added_buffer_missing_duration_;</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> </div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="comment">// If kNoTimestamp, then |estimated_next_frame_duration_| will be used.</span></div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  int64_t default_duration_;</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="comment">// If kNoTimestamp, then a default value will be used. This estimate is the</span></div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="comment">// maximum duration seen so far for this track, and is used only if</span></div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="comment">// |default_duration_| is kNoTimestamp.</span></div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  int64_t estimated_next_frame_duration_;</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> </div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <a class="code" href="../../dc/d48/classedash__packager_1_1media_1_1MediaParser.html#a1628c19a91f1b8ae123f7350936bfe32">MediaParser::NewSampleCB</a> new_sample_cb_;</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="keyword">typedef</span> std::map<int, Track> TextTrackMap;</div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <a class="code" href="../../db/da0/classedash__packager_1_1media_1_1WebMClusterParser.html">WebMClusterParser</a>(int64_t timecode_scale,</div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  scoped_refptr<AudioStreamInfo> audio_stream_info,</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  scoped_refptr<VideoStreamInfo> video_stream_info,</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  int64_t audio_default_duration,</div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  int64_t video_default_duration,</div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keyword">const</span> WebMTracksParser::TextTracks& text_tracks,</div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keyword">const</span> std::set<int64_t>& ignored_tracks,</div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keyword">const</span> std::string& audio_encryption_key_id,</div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keyword">const</span> std::string& video_encryption_key_id,</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keyword">const</span> <a class="code" href="../../dc/d48/classedash__packager_1_1media_1_1MediaParser.html#a1628c19a91f1b8ae123f7350936bfe32">MediaParser::NewSampleCB</a>& new_sample_cb,</div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keyword">const</span> <a class="code" href="../../dc/d48/classedash__packager_1_1media_1_1MediaParser.html#af5c74c8723a5306faddcdfdcadb4ab4a">MediaParser::InitCB</a>& init_cb);</div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  ~<a class="code" href="../../db/da0/classedash__packager_1_1media_1_1WebMClusterParser.html">WebMClusterParser</a>() <span class="keyword">override</span>;</div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> </div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keywordtype">void</span> <a class="code" href="../../db/da0/classedash__packager_1_1media_1_1WebMClusterParser.html#afd772eabfa31927d47dacfb219fca3ad">Reset</a>();</div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> </div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordtype">void</span> <a class="code" href="../../db/da0/classedash__packager_1_1media_1_1WebMClusterParser.html#a005136b36fdc7cb760aedf9863633890">Flush</a>();</div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> </div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keywordtype">int</span> <a class="code" href="../../db/da0/classedash__packager_1_1media_1_1WebMClusterParser.html#a060661d4a0bfc01543fa025fb4b09a7d">Parse</a>(<span class="keyword">const</span> uint8_t* buf, <span class="keywordtype">int</span> size);</div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  int64_t cluster_start_time()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> cluster_start_time_; }</div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> </div>
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<div class="line"><a name="l00138"></a><span class="lineno"><a class="line" href="../../db/da0/classedash__packager_1_1media_1_1WebMClusterParser.html#ae62be1971c352525906d6fad2ee831bd"> 138</a></span>  <span class="keywordtype">bool</span> <a class="code" href="../../db/da0/classedash__packager_1_1media_1_1WebMClusterParser.html#ae62be1971c352525906d6fad2ee831bd">cluster_ended</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> cluster_ended_; }</div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span> </div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keyword">private</span>:</div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="comment">// WebMParserClient methods.</span></div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <a class="code" href="../../de/da5/classedash__packager_1_1media_1_1WebMParserClient.html">WebMParserClient</a>* OnListStart(<span class="keywordtype">int</span> <span class="keywordtype">id</span>) <span class="keyword">override</span>;</div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keywordtype">bool</span> OnListEnd(<span class="keywordtype">int</span> <span class="keywordtype">id</span>) <span class="keyword">override</span>;</div>
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keywordtype">bool</span> OnUInt(<span class="keywordtype">int</span> <span class="keywordtype">id</span>, int64_t val) <span class="keyword">override</span>;</div>
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keywordtype">bool</span> OnBinary(<span class="keywordtype">int</span> <span class="keywordtype">id</span>, <span class="keyword">const</span> uint8_t* data, <span class="keywordtype">int</span> size) <span class="keyword">override</span>;</div>
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<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> </div>
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordtype">bool</span> ParseBlock(<span class="keywordtype">bool</span> is_simple_block,</div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keyword">const</span> uint8_t* buf,</div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keywordtype">int</span> size,</div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keyword">const</span> uint8_t* additional,</div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keywordtype">int</span> additional_size,</div>
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keywordtype">int</span> duration,</div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  int64_t discard_padding);</div>
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<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordtype">bool</span> OnBlock(<span class="keywordtype">bool</span> is_simple_block,</div>
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<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keywordtype">int</span> track_num,</div>
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<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keywordtype">int</span> timecode,</div>
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<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keywordtype">int</span> duration,</div>
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<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordtype">int</span> flags,</div>
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<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keyword">const</span> uint8_t* data,</div>
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<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keywordtype">int</span> size,</div>
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<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keyword">const</span> uint8_t* additional,</div>
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<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordtype">int</span> additional_size,</div>
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<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  int64_t discard_padding);</div>
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<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"> 165</span>  <span class="comment">// Resets the Track objects associated with each text track.</span></div>
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<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keywordtype">void</span> ResetTextTracks();</div>
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<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> </div>
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<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="comment">// Search for the indicated track_num among the text tracks. Returns NULL</span></div>
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<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="comment">// if that track num is not a text track.</span></div>
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<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  Track* FindTextTrack(<span class="keywordtype">int</span> track_num);</div>
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<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> </div>
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<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="comment">// Attempts to read the duration from the encoded audio data, returning as</span></div>
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<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="comment">// kNoTimestamp if duration cannot be retrieved.</span></div>
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<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="comment">// Avoid calling if encrypted; may produce unexpected output. See</span></div>
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<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="comment">// implementation for supported codecs.</span></div>
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<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  int64_t TryGetEncodedAudioDuration(<span class="keyword">const</span> uint8_t* data, <span class="keywordtype">int</span> size);</div>
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<div class="line"><a name="l00177"></a><span class="lineno"> 177</span> </div>
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<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="comment">// Reads Opus packet header to determine packet duration. Duration returned</span></div>
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|
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="comment">// as kNoTimestamp upon failure to read duration from packet.</span></div>
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<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  int64_t ReadOpusDuration(<span class="keyword">const</span> uint8_t* data, <span class="keywordtype">int</span> size);</div>
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<div class="line"><a name="l00181"></a><span class="lineno"> 181</span> </div>
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<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="comment">// Tracks the number of LOGs made in process of reading encoded duration.</span></div>
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<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="comment">// Useful to prevent log spam.</span></div>
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<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="keywordtype">int</span> num_duration_errors_ = 0;</div>
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<div class="line"><a name="l00185"></a><span class="lineno"> 185</span> </div>
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<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordtype">double</span> timecode_multiplier_; <span class="comment">// Multiplier used to convert timecodes into</span></div>
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<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="comment">// microseconds.</span></div>
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<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  scoped_refptr<AudioStreamInfo> audio_stream_info_;</div>
|
|
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  scoped_refptr<VideoStreamInfo> video_stream_info_;</div>
|
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<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  std::set<int64_t> ignored_tracks_;</div>
|
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<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  std::string audio_encryption_key_id_;</div>
|
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<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  std::string video_encryption_key_id_;</div>
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<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> </div>
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<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <a class="code" href="../../d6/dd6/classedash__packager_1_1media_1_1WebMListParser.html">WebMListParser</a> parser_;</div>
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<div class="line"><a name="l00195"></a><span class="lineno"> 195</span> </div>
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<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="comment">// Indicates whether init_cb has been executed. |init_cb| is executed when we</span></div>
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<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="comment">// have codec configuration of video stream, which is extracted from the first</span></div>
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<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="comment">// video sample.</span></div>
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<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="keywordtype">bool</span> initialized_;</div>
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<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <a class="code" href="../../dc/d48/classedash__packager_1_1media_1_1MediaParser.html#af5c74c8723a5306faddcdfdcadb4ab4a">MediaParser::InitCB</a> init_cb_;</div>
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<div class="line"><a name="l00201"></a><span class="lineno"> 201</span> </div>
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<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  int64_t last_block_timecode_ = -1;</div>
|
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<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  scoped_ptr<uint8_t[]> block_data_;</div>
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<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="keywordtype">int</span> block_data_size_ = -1;</div>
|
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<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  int64_t block_duration_ = -1;</div>
|
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<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  int64_t block_add_id_ = -1;</div>
|
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<div class="line"><a name="l00207"></a><span class="lineno"> 207</span> </div>
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<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  scoped_ptr<uint8_t[]> block_additional_data_;</div>
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<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="comment">// Must be 0 if |block_additional_data_| is null. Must be > 0 if</span></div>
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<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="comment">// |block_additional_data_| is NOT null.</span></div>
|
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<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="keywordtype">int</span> block_additional_data_size_ = 0;</div>
|
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<div class="line"><a name="l00212"></a><span class="lineno"> 212</span> </div>
|
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<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  int64_t discard_padding_ = -1;</div>
|
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<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keywordtype">bool</span> discard_padding_set_ = <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00215"></a><span class="lineno"> 215</span> </div>
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<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  int64_t cluster_timecode_ = -1;</div>
|
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<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  int64_t cluster_start_time_;</div>
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<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="keywordtype">bool</span> cluster_ended_ = <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00219"></a><span class="lineno"> 219</span> </div>
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<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  Track audio_;</div>
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<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  Track video_;</div>
|
|
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  TextTrackMap text_track_map_;</div>
|
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<div class="line"><a name="l00223"></a><span class="lineno"> 223</span> </div>
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<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  DISALLOW_IMPLICIT_CONSTRUCTORS(<a class="code" href="../../db/da0/classedash__packager_1_1media_1_1WebMClusterParser.html">WebMClusterParser</a>);</div>
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<div class="line"><a name="l00225"></a><span class="lineno"> 225</span> };</div>
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<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="comment">// namespace media</span></div>
|
|
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span> } <span class="comment">// namespace edash_packager</span></div>
|
|
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span> </div>
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<div class="line"><a name="l00230"></a><span class="lineno"> 230</span> <span class="preprocessor">#endif // MEDIA_FORMATS_WEBM_WEBM_CLUSTER_PARSER_H_</span></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1WebMParserClient_html"><div class="ttname"><a href="../../de/da5/classedash__packager_1_1media_1_1WebMParserClient.html">edash_packager::media::WebMParserClient</a></div><div class="ttdef"><b>Definition:</b> <a href="../../dd/d46/webm__parser_8h_source.html#l00030">webm_parser.h:30</a></div></div>
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|
<div class="ttc" id="classedash__packager_1_1media_1_1WebMClusterParser_html_afd772eabfa31927d47dacfb219fca3ad"><div class="ttname"><a href="../../db/da0/classedash__packager_1_1media_1_1WebMClusterParser.html#afd772eabfa31927d47dacfb219fca3ad">edash_packager::media::WebMClusterParser::Reset</a></div><div class="ttdeci">void Reset()</div><div class="ttdoc">Resets the parser state so it can accept a new cluster. </div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d8f/webm__cluster__parser_8cc_source.html#l00121">webm_cluster_parser.cc:121</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1WebMClusterParser_html_a9a9e4f3a5a1360d947528a553397779ea32a5cc2c19fb1598071109cad939311a"><div class="ttname"><a href="../../db/da0/classedash__packager_1_1media_1_1WebMClusterParser.html#a9a9e4f3a5a1360d947528a553397779ea32a5cc2c19fb1598071109cad939311a">edash_packager::media::WebMClusterParser::kDefaultVideoBufferDurationInMs</a></div><div class="ttdef"><b>Definition:</b> <a href="../../dc/d3c/webm__cluster__parser_8h_source.html#l00032">webm_cluster_parser.h:32</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1WebMClusterParser_html_a060661d4a0bfc01543fa025fb4b09a7d"><div class="ttname"><a href="../../db/da0/classedash__packager_1_1media_1_1WebMClusterParser.html#a060661d4a0bfc01543fa025fb4b09a7d">edash_packager::media::WebMClusterParser::Parse</a></div><div class="ttdeci">int Parse(const uint8_t *buf, int size)</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d8f/webm__cluster__parser_8cc_source.html#l00139">webm_cluster_parser.cc:139</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1MediaParser_html_a1628c19a91f1b8ae123f7350936bfe32"><div class="ttname"><a href="../../dc/d48/classedash__packager_1_1media_1_1MediaParser.html#a1628c19a91f1b8ae123f7350936bfe32">edash_packager::media::MediaParser::NewSampleCB</a></div><div class="ttdeci">base::Callback< bool(uint32_t track_id, const scoped_refptr< MediaSample > &media_sample)> NewSampleCB</div><div class="ttdef"><b>Definition:</b> <a href="../../d7/d12/media__parser_8h_source.html#l00043">media_parser.h:43</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1MediaParser_html_af5c74c8723a5306faddcdfdcadb4ab4a"><div class="ttname"><a href="../../dc/d48/classedash__packager_1_1media_1_1MediaParser.html#af5c74c8723a5306faddcdfdcadb4ab4a">edash_packager::media::MediaParser::InitCB</a></div><div class="ttdeci">base::Callback< void(const std::vector< scoped_refptr< StreamInfo > > &stream_info)> InitCB</div><div class="ttdef"><b>Definition:</b> <a href="../../d7/d12/media__parser_8h_source.html#l00034">media_parser.h:34</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1WebMClusterParser_html_ae62be1971c352525906d6fad2ee831bd"><div class="ttname"><a href="../../db/da0/classedash__packager_1_1media_1_1WebMClusterParser.html#ae62be1971c352525906d6fad2ee831bd">edash_packager::media::WebMClusterParser::cluster_ended</a></div><div class="ttdeci">bool cluster_ended() const </div><div class="ttdef"><b>Definition:</b> <a href="../../dc/d3c/webm__cluster__parser_8h_source.html#l00138">webm_cluster_parser.h:138</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1WebMClusterParser_html_a9a9e4f3a5a1360d947528a553397779eadcde56d3670a152494df7b401c6db1dd"><div class="ttname"><a href="../../db/da0/classedash__packager_1_1media_1_1WebMClusterParser.html#a9a9e4f3a5a1360d947528a553397779eadcde56d3670a152494df7b401c6db1dd">edash_packager::media::WebMClusterParser::kDefaultAudioBufferDurationInMs</a></div><div class="ttdoc">Common 1k samples @44.1kHz. </div><div class="ttdef"><b>Definition:</b> <a href="../../dc/d3c/webm__cluster__parser_8h_source.html#l00028">webm_cluster_parser.h:28</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1WebMClusterParser_html"><div class="ttname"><a href="../../db/da0/classedash__packager_1_1media_1_1WebMClusterParser.html">edash_packager::media::WebMClusterParser</a></div><div class="ttdef"><b>Definition:</b> <a href="../../dc/d3c/webm__cluster__parser_8h_source.html#l00022">webm_cluster_parser.h:22</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1WebMListParser_html"><div class="ttname"><a href="../../d6/dd6/classedash__packager_1_1media_1_1WebMListParser.html">edash_packager::media::WebMListParser</a></div><div class="ttdef"><b>Definition:</b> <a href="../../dd/d46/webm__parser_8h_source.html#l00054">webm_parser.h:54</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1WebMClusterParser_html_a005136b36fdc7cb760aedf9863633890"><div class="ttname"><a href="../../db/da0/classedash__packager_1_1media_1_1WebMClusterParser.html#a005136b36fdc7cb760aedf9863633890">edash_packager::media::WebMClusterParser::Flush</a></div><div class="ttdeci">void Flush()</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d8f/webm__cluster__parser_8cc_source.html#l00132">webm_cluster_parser.cc:132</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1WebMClusterParser_html_ab08c27583d9585af4a71d81bcb4f6772"><div class="ttname"><a href="../../db/da0/classedash__packager_1_1media_1_1WebMClusterParser.html#ab08c27583d9585af4a71d81bcb4f6772">edash_packager::media::WebMClusterParser::kOpusFrameDurationsMu</a></div><div class="ttdeci">static const uint16_t kOpusFrameDurationsMu[]</div><div class="ttdef"><b>Definition:</b> <a href="../../dc/d3c/webm__cluster__parser_8h_source.html#l00039">webm_cluster_parser.h:39</a></div></div>
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