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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">// Copyright 2014 Google Inc. All rights reserved.</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment">// Use of this source code is governed by a BSD-style</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment">// license that can be found in the LICENSE file or at</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment">// https://developers.google.com/open-source/licenses/bsd</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;</div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="preprocessor">#ifndef PACKAGER_MEDIA_FORMATS_MP4_MP4_MEDIA_PARSER_H_</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="preprocessor">#define PACKAGER_MEDIA_FORMATS_MP4_MP4_MEDIA_PARSER_H_</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;</div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="preprocessor">#include &lt;stdint.h&gt;</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;</div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="preprocessor">#include &lt;map&gt;</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="preprocessor">#include &lt;memory&gt;</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="preprocessor">#include &lt;vector&gt;</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;</div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="preprocessor">#include &quot;packager/base/callback_forward.h&quot;</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="preprocessor">#include &quot;packager/media/base/decryptor_source.h&quot;</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="preprocessor">#include &quot;packager/media/base/media_parser.h&quot;</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;<span class="preprocessor">#include &quot;packager/media/base/offset_byte_queue.h&quot;</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;</div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="keyword">namespace </span><a class="code" href="../../d8/daf/namespaceshaka.html">shaka</a> {</div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;<span class="keyword">namespace </span>media {</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="keyword">namespace </span>mp4 {</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;<span class="keyword">class </span>BoxReader;</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;<span class="keyword">class </span>TrackRunIterator;</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160;<span class="keyword">struct </span>Movie;</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;<span class="keyword">struct </span>ProtectionSystemSpecificHeader;</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;</div><div class="line"><a name="l00030"></a><span class="lineno"><a class="line" href="../../d7/dd5/classshaka_1_1media_1_1mp4_1_1MP4MediaParser.html"> 30</a></span>&#160;<span class="keyword">class </span><a class="code" href="../../d7/dd5/classshaka_1_1media_1_1mp4_1_1MP4MediaParser.html">MP4MediaParser</a> : <span class="keyword">public</span> <a class="code" href="../../d3/d0a/classshaka_1_1media_1_1MediaParser.html">MediaParser</a> {</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160; <span class="keyword">public</span>:</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160; <a class="code" href="../../d7/dd5/classshaka_1_1media_1_1mp4_1_1MP4MediaParser.html">MP4MediaParser</a>();</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160; ~<a class="code" href="../../d7/dd5/classshaka_1_1media_1_1mp4_1_1MP4MediaParser.html">MP4MediaParser</a>() <span class="keyword">override</span>;</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160;</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; <span class="keywordtype">void</span> <a class="code" href="../../d7/dd5/classshaka_1_1media_1_1mp4_1_1MP4MediaParser.html#acc87b9752a7f6e8c739109acbc02b69d">Init</a>(<span class="keyword">const</span> <a class="code" href="../../d3/d0a/classshaka_1_1media_1_1MediaParser.html#aef5795d2b3df2526c6e8afe1e4d072bf">InitCB</a>&amp; init_cb,</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160; <span class="keyword">const</span> <a class="code" href="../../d3/d0a/classshaka_1_1media_1_1MediaParser.html#a3a1f87fb3ed95a9cbd2b6873326a1a4c">NewSampleCB</a>&amp; new_sample_cb,</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160; <a class="code" href="../../d1/d1f/classshaka_1_1media_1_1KeySource.html">KeySource</a>* decryption_key_source) <span class="keyword">override</span>;</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d7/dd5/classshaka_1_1media_1_1mp4_1_1MP4MediaParser.html#a6f26e0d76aeda601fa87190901de27ea">Flush</a>() <span class="keyword">override</span> WARN_UNUSED_RESULT;</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d7/dd5/classshaka_1_1media_1_1mp4_1_1MP4MediaParser.html#a4105cdbe5ece03071a17c06fb27699b0">Parse</a>(<span class="keyword">const</span> uint8_t* buf, <span class="keywordtype">int</span> size) <span class="keyword">override</span> WARN_UNUSED_RESULT;</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160;</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d7/dd5/classshaka_1_1media_1_1mp4_1_1MP4MediaParser.html#af0ec1b44528a2997c0d548bee47862cf">LoadMoov</a>(<span class="keyword">const</span> std::string&amp; file_path);</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160;</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; <span class="keyword">private</span>:</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; <span class="keyword">enum</span> State {</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; kWaitingForInit,</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; kParsingBoxes,</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; kEmittingSamples,</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; kError</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; };</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160;</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; <span class="keywordtype">bool</span> ParseBox(<span class="keywordtype">bool</span>* err);</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; <span class="keywordtype">bool</span> ParseMoov(<a class="code" href="../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html">mp4::BoxReader</a>* reader);</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; <span class="keywordtype">bool</span> ParseMoof(<a class="code" href="../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html">mp4::BoxReader</a>* reader);</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160;</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; <span class="keywordtype">bool</span> FetchKeysIfNecessary(</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; <span class="keyword">const</span> std::vector&lt;ProtectionSystemSpecificHeader&gt;&amp; headers);</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160;</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; <span class="comment">// To retain proper framing, each &#39;mdat&#39; box must be read; to limit memory</span></div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; <span class="comment">// usage, the box&#39;s data needs to be discarded incrementally as frames are</span></div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; <span class="comment">// extracted from the stream. This function discards data from the stream up</span></div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; <span class="comment">// to |offset|, updating the |mdat_tail_| value so that framing can be</span></div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; <span class="comment">// retained after all &#39;mdat&#39; information has been read.</span></div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; <span class="comment">// Returns &#39;true&#39; on success, &#39;false&#39; if there was an error.</span></div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; <span class="keywordtype">bool</span> ReadAndDiscardMDATsUntil(<span class="keyword">const</span> int64_t offset);</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160;</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; <span class="keywordtype">void</span> ChangeState(State new_state);</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160;</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160; <span class="keywordtype">bool</span> EmitConfigs();</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160;</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; <span class="keywordtype">bool</span> EnqueueSample(<span class="keywordtype">bool</span>* err);</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160;</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; <span class="keywordtype">void</span> Reset();</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160;</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; State state_;</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; <a class="code" href="../../d3/d0a/classshaka_1_1media_1_1MediaParser.html#aef5795d2b3df2526c6e8afe1e4d072bf">InitCB</a> init_cb_;</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; <a class="code" href="../../d3/d0a/classshaka_1_1media_1_1MediaParser.html#a3a1f87fb3ed95a9cbd2b6873326a1a4c">NewSampleCB</a> new_sample_cb_;</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; <a class="code" href="../../d1/d1f/classshaka_1_1media_1_1KeySource.html">KeySource</a>* decryption_key_source_;</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; std::unique_ptr&lt;DecryptorSource&gt; decryptor_source_;</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160;</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; <a class="code" href="../../d9/df9/classshaka_1_1media_1_1OffsetByteQueue.html">OffsetByteQueue</a> queue_;</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160;</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160; <span class="comment">// These two parameters are only valid in the |kEmittingSegments| state.</span></div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; <span class="comment">//</span></div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; <span class="comment">// |moof_head_| is the offset of the start of the most recently parsed moof</span></div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; <span class="comment">// block. All byte offsets in sample information are relative to this offset,</span></div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; <span class="comment">// as mandated by the Media Source spec.</span></div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; int64_t moof_head_;</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; <span class="comment">// |mdat_tail_| is the stream offset of the end of the current &#39;mdat&#39; box.</span></div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; <span class="comment">// Valid iff it is greater than the head of the queue.</span></div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; int64_t mdat_tail_;</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160;</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; std::unique_ptr&lt;Movie&gt; moov_;</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; std::unique_ptr&lt;TrackRunIterator&gt; runs_;</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160;</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; DISALLOW_COPY_AND_ASSIGN(<a class="code" href="../../d7/dd5/classshaka_1_1media_1_1mp4_1_1MP4MediaParser.html">MP4MediaParser</a>);</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160;};</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160;</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160;} <span class="comment">// namespace mp4</span></div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160;} <span class="comment">// namespace media</span></div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160;} <span class="comment">// namespace shaka</span></div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160;</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160;<span class="preprocessor">#endif // PACKAGER_MEDIA_FORMATS_MP4_MP4_MEDIA_PARSER_H_</span></div><div class="ttc" id="classshaka_1_1media_1_1MediaParser_html"><div class="ttname"><a href="../../d3/d0a/classshaka_1_1media_1_1MediaParser.html">shaka::media::MediaParser</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d7/d12/media__parser_8h_source.html#l00024">media_parser.h:24</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1MP4MediaParser_html_a6f26e0d76aeda601fa87190901de27ea"><div class="ttname"><a href="../../d7/dd5/classshaka_1_1media_1_1mp4_1_1MP4MediaParser.html#a6f26e0d76aeda601fa87190901de27ea">shaka::media::mp4::MP4MediaParser::Flush</a></div><div class="ttdeci">bool Flush() override WARN_UNUSED_RESULT</div><div class="ttdef"><b>Definition:</b> <a href="../../d7/def/mp4__media__parser_8cc_source.html#l00152">mp4_media_parser.cc:152</a></div></div>
<div class="ttc" id="namespaceshaka_html"><div class="ttname"><a href="../../d8/daf/namespaceshaka.html">shaka</a></div><div class="ttdoc">All the methods that are virtual are virtual for mocking. </div><div class="ttdef"><b>Definition:</b> <a href="../../d4/d15/gflags__hex__bytes_8cc_source.html#l00011">gflags_hex_bytes.cc:11</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1MediaParser_html_aef5795d2b3df2526c6e8afe1e4d072bf"><div class="ttname"><a href="../../d3/d0a/classshaka_1_1media_1_1MediaParser.html#aef5795d2b3df2526c6e8afe1e4d072bf">shaka::media::MediaParser::InitCB</a></div><div class="ttdeci">base::Callback&lt; void(const std::vector&lt; std::shared_ptr&lt; StreamInfo &gt; &gt; &amp;stream_info)&gt; 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>
<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1MP4MediaParser_html_a4105cdbe5ece03071a17c06fb27699b0"><div class="ttname"><a href="../../d7/dd5/classshaka_1_1media_1_1mp4_1_1MP4MediaParser.html#a4105cdbe5ece03071a17c06fb27699b0">shaka::media::mp4::MP4MediaParser::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="../../d7/def/mp4__media__parser_8cc_source.html#l00159">mp4_media_parser.cc:159</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1OffsetByteQueue_html"><div class="ttname"><a href="../../d9/df9/classshaka_1_1media_1_1OffsetByteQueue.html">shaka::media::OffsetByteQueue</a></div><div class="ttdef"><b>Definition:</b> <a href="../../de/d34/offset__byte__queue_8h_source.html#l00019">offset_byte_queue.h:19</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1MediaParser_html_a3a1f87fb3ed95a9cbd2b6873326a1a4c"><div class="ttname"><a href="../../d3/d0a/classshaka_1_1media_1_1MediaParser.html#a3a1f87fb3ed95a9cbd2b6873326a1a4c">shaka::media::MediaParser::NewSampleCB</a></div><div class="ttdeci">base::Callback&lt; bool(uint32_t track_id, const std::shared_ptr&lt; MediaSample &gt; &amp;media_sample)&gt; 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>
<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1BoxReader_html"><div class="ttname"><a href="../../d1/dee/classshaka_1_1media_1_1mp4_1_1BoxReader.html">shaka::media::mp4::BoxReader</a></div><div class="ttdoc">Class for reading MP4 boxes. </div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d92/box__reader_8h_source.html#l00025">box_reader.h:25</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1MP4MediaParser_html_af0ec1b44528a2997c0d548bee47862cf"><div class="ttname"><a href="../../d7/dd5/classshaka_1_1media_1_1mp4_1_1MP4MediaParser.html#af0ec1b44528a2997c0d548bee47862cf">shaka::media::mp4::MP4MediaParser::LoadMoov</a></div><div class="ttdeci">bool LoadMoov(const std::string &amp;file_path)</div><div class="ttdef"><b>Definition:</b> <a href="../../d7/def/mp4__media__parser_8cc_source.html#l00193">mp4_media_parser.cc:193</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1KeySource_html"><div class="ttname"><a href="../../d1/d1f/classshaka_1_1media_1_1KeySource.html">shaka::media::KeySource</a></div><div class="ttdoc">KeySource is responsible for encryption key acquisition. </div><div class="ttdef"><b>Definition:</b> <a href="../../dc/d3f/key__source_8h_source.html#l00048">key_source.h:48</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1MP4MediaParser_html_acc87b9752a7f6e8c739109acbc02b69d"><div class="ttname"><a href="../../d7/dd5/classshaka_1_1media_1_1mp4_1_1MP4MediaParser.html#acc87b9752a7f6e8c739109acbc02b69d">shaka::media::mp4::MP4MediaParser::Init</a></div><div class="ttdeci">void Init(const InitCB &amp;init_cb, const NewSampleCB &amp;new_sample_cb, KeySource *decryption_key_source) override</div><div class="ttdef"><b>Definition:</b> <a href="../../d7/def/mp4__media__parser_8cc_source.html#l00129">mp4_media_parser.cc:129</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1mp4_1_1MP4MediaParser_html"><div class="ttname"><a href="../../d7/dd5/classshaka_1_1media_1_1mp4_1_1MP4MediaParser.html">shaka::media::mp4::MP4MediaParser</a></div><div class="ttdef"><b>Definition:</b> <a href="../../de/d7b/mp4__media__parser_8h_source.html#l00030">mp4_media_parser.h:30</a></div></div>
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