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<div class="title">multi_segment_segmenter.cc</div> </div>
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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">#include &quot;packager/media/formats/mp4/multi_segment_segmenter.h&quot;</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;</div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="preprocessor">#include &quot;packager/base/strings/string_number_conversions.h&quot;</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="preprocessor">#include &quot;packager/base/strings/string_util.h&quot;</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="preprocessor">#include &quot;packager/media/base/buffer_writer.h&quot;</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="preprocessor">#include &quot;packager/media/base/media_stream.h&quot;</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="preprocessor">#include &quot;packager/media/base/muxer_options.h&quot;</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="preprocessor">#include &quot;packager/media/base/muxer_util.h&quot;</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="preprocessor">#include &quot;packager/media/event/muxer_listener.h&quot;</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="preprocessor">#include &quot;packager/media/file/file.h&quot;</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="preprocessor">#include &quot;packager/media/formats/mp4/box_definitions.h&quot;</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;</div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;<span class="keyword">namespace </span>edash_packager {</div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="keyword">namespace </span>media {</div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="keyword">namespace </span>mp4 {</div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;</div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;MultiSegmentSegmenter::MultiSegmentSegmenter(<span class="keyword">const</span> MuxerOptions&amp; options,</div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160; scoped_ptr&lt;FileType&gt; ftyp,</div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160; scoped_ptr&lt;Movie&gt; moov)</div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160; : Segmenter(options, ftyp.Pass(), moov.Pass()),</div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160; styp_(new SegmentType),</div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160; num_segments_(0) {</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160; <span class="comment">// Use the same brands for styp as ftyp.</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160; styp_-&gt;major_brand = Segmenter::ftyp()-&gt;major_brand;</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160; styp_-&gt;compatible_brands = Segmenter::ftyp()-&gt;compatible_brands;</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160;}</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160;</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160;MultiSegmentSegmenter::~MultiSegmentSegmenter() {}</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160;</div>
<div class="line"><a name="l00036"></a><span class="lineno"><a class="line" href="../../dc/d7a/classedash__packager_1_1media_1_1mp4_1_1MultiSegmentSegmenter.html#a88be93ad6cce209ceaf086ab98009516"> 36</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="../../dc/d7a/classedash__packager_1_1media_1_1mp4_1_1MultiSegmentSegmenter.html#a88be93ad6cce209ceaf086ab98009516">MultiSegmentSegmenter::GetInitRange</a>(<span class="keywordtype">size_t</span>* offset, <span class="keywordtype">size_t</span>* size) {</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; DLOG(INFO) &lt;&lt; <span class="stringliteral">&quot;MultiSegmentSegmenter outputs init segment: &quot;</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160; &lt;&lt; options().<a class="code" href="../../de/d57/structedash__packager_1_1media_1_1MuxerOptions.html#addd401a47b287f3c18cbdc4bfa1a6963">output_file_name</a>;</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160;}</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160;</div>
<div class="line"><a name="l00042"></a><span class="lineno"><a class="line" href="../../dc/d7a/classedash__packager_1_1media_1_1mp4_1_1MultiSegmentSegmenter.html#a789a8b0449e433076dfc0c2344d32280"> 42</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="../../dc/d7a/classedash__packager_1_1media_1_1mp4_1_1MultiSegmentSegmenter.html#a789a8b0449e433076dfc0c2344d32280">MultiSegmentSegmenter::GetIndexRange</a>(<span class="keywordtype">size_t</span>* offset, <span class="keywordtype">size_t</span>* size) {</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; DLOG(INFO) &lt;&lt; <span class="stringliteral">&quot;MultiSegmentSegmenter does not have index range.&quot;</span>;</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160;}</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160;</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160;<a class="code" href="../../d2/d90/classedash__packager_1_1media_1_1Status.html">Status</a> MultiSegmentSegmenter::DoInitialize() {</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; DCHECK(ftyp());</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160; DCHECK(moov());</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; <span class="comment">// Generate the output file with init segment.</span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; <a class="code" href="../../de/d19/classedash__packager_1_1media_1_1File.html">File</a>* file = <a class="code" href="../../de/d19/classedash__packager_1_1media_1_1File.html#a0933ccd7df76fcf8fbcfe12c15dbf6c5">File::Open</a>(options().output_file_name.c_str(), <span class="stringliteral">&quot;w&quot;</span>);</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; <span class="keywordflow">if</span> (file == NULL) {</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; <span class="keywordflow">return</span> <a class="code" href="../../d2/d90/classedash__packager_1_1media_1_1Status.html">Status</a>(error::FILE_FAILURE,</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; <span class="stringliteral">&quot;Cannot open file for write &quot;</span> + options().output_file_name);</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; }</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; scoped_ptr&lt;BufferWriter&gt; buffer(<span class="keyword">new</span> <a class="code" href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html">BufferWriter</a>);</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; ftyp()-&gt;<a class="code" href="../../d7/d8a/structedash__packager_1_1media_1_1mp4_1_1Box.html#aa7a756828b5514fcd3eaf16d86c413c0">Write</a>(buffer.get());</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; moov()-&gt;<a class="code" href="../../d7/d8a/structedash__packager_1_1media_1_1mp4_1_1Box.html#aa7a756828b5514fcd3eaf16d86c413c0">Write</a>(buffer.get());</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; <a class="code" href="../../d2/d90/classedash__packager_1_1media_1_1Status.html">Status</a> status = buffer-&gt;WriteToFile(file);</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; <span class="keywordflow">if</span> (!file-&gt;<a class="code" href="../../de/d19/classedash__packager_1_1media_1_1File.html#a42290da768cd34316d2f4c5fc3976b38">Close</a>()) {</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; LOG(WARNING) &lt;&lt; <span class="stringliteral">&quot;Failed to close the file properly: &quot;</span></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; &lt;&lt; options().<a class="code" href="../../de/d57/structedash__packager_1_1media_1_1MuxerOptions.html#addd401a47b287f3c18cbdc4bfa1a6963">output_file_name</a>;</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="keywordflow">return</span> status;</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160;}</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;Status MultiSegmentSegmenter::DoFinalize() {</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; <a class="code" href="../../dc/de1/classedash__packager_1_1media_1_1mp4_1_1Segmenter.html#a4e58a007d4daafe1b49a70d39e52e339">SetComplete</a>();</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; <span class="keywordflow">return</span> Status::OK;</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160;}</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160;</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160;Status MultiSegmentSegmenter::DoFinalizeSegment() {</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; DCHECK(sidx());</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; <span class="comment">// earliest_presentation_time is the earliest presentation time of any</span></div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; <span class="comment">// access unit in the reference stream in the first subsegment.</span></div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; <span class="comment">// It will be re-calculated later when subsegments are finalized.</span></div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160; sidx()-&gt;earliest_presentation_time =</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; sidx()-&gt;references[0].earliest_presentation_time;</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160;</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; <span class="keywordflow">if</span> (options().num_subsegments_per_sidx &lt;= 0)</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; <span class="keywordflow">return</span> WriteSegment();</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; <span class="comment">// sidx() contains pre-generated segment references with one reference per</span></div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; <span class="comment">// fragment. Calculate |num_fragments_per_subsegment| and combine</span></div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; <span class="comment">// pre-generated references into final subsegment references.</span></div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; uint32_t num_fragments = sidx()-&gt;references.size();</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; uint32_t num_fragments_per_subsegment =</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; (num_fragments - 1) / options().<a class="code" href="../../de/d57/structedash__packager_1_1media_1_1MuxerOptions.html#a93714f081569ea56ed626eb057c1761f">num_subsegments_per_sidx</a> + 1;</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; <span class="keywordflow">if</span> (num_fragments_per_subsegment &lt;= 1)</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160; <span class="keywordflow">return</span> WriteSegment();</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160;</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; uint32_t frag_index = 0;</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; uint32_t subseg_index = 0;</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; std::vector&lt;SegmentReference&gt;&amp; refs = sidx()-&gt;references;</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; uint64_t first_sap_time =</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; refs[0].sap_delta_time + refs[0].earliest_presentation_time;</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; <span class="keywordflow">for</span> (uint32_t i = 1; i &lt; num_fragments; ++i) {</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; refs[subseg_index].referenced_size += refs[i].referenced_size;</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; refs[subseg_index].subsegment_duration += refs[i].subsegment_duration;</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; refs[subseg_index].earliest_presentation_time =</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; std::min(refs[subseg_index].earliest_presentation_time,</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; refs[i].earliest_presentation_time);</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; <span class="keywordflow">if</span> (refs[subseg_index].sap_type == SegmentReference::TypeUnknown &amp;&amp;</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; refs[i].sap_type != SegmentReference::TypeUnknown) {</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; refs[subseg_index].sap_type = refs[i].sap_type;</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; first_sap_time =</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; refs[i].sap_delta_time + refs[i].earliest_presentation_time;</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; }</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; <span class="keywordflow">if</span> (++frag_index &gt;= num_fragments_per_subsegment) {</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; <span class="comment">// Calculate sap delta time w.r.t. sidx_-&gt;earliest_presentation_time.</span></div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; <span class="keywordflow">if</span> (refs[subseg_index].sap_type != SegmentReference::TypeUnknown) {</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; refs[subseg_index].sap_delta_time =</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; first_sap_time - refs[subseg_index].earliest_presentation_time;</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; }</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; <span class="keywordflow">if</span> (++i &gt;= num_fragments)</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; refs[++subseg_index] = refs[i];</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; first_sap_time =</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; refs[i].sap_delta_time + refs[i].earliest_presentation_time;</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; frag_index = 1;</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; }</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; }</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160;</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160; refs.resize(options().num_subsegments_per_sidx);</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160;</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160; <span class="comment">// earliest_presentation_time is the earliest presentation time of any</span></div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; <span class="comment">// access unit in the reference stream in the first subsegment.</span></div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; sidx()-&gt;earliest_presentation_time = refs[0].earliest_presentation_time;</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160;</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160; <span class="keywordflow">return</span> WriteSegment();</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160;}</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160;</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160;Status MultiSegmentSegmenter::WriteSegment() {</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; DCHECK(sidx());</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; DCHECK(fragment_buffer());</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160; DCHECK(styp_);</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160;</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160; scoped_ptr&lt;BufferWriter&gt; buffer(<span class="keyword">new</span> BufferWriter());</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160; File* file;</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160; std::string file_name;</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160; <span class="keywordflow">if</span> (options().segment_template.empty()) {</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160; <span class="comment">// Append the segment to output file if segment template is not specified.</span></div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; file_name = options().<a class="code" href="../../de/d57/structedash__packager_1_1media_1_1MuxerOptions.html#addd401a47b287f3c18cbdc4bfa1a6963">output_file_name</a>.c_str();</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160; file = <a class="code" href="../../de/d19/classedash__packager_1_1media_1_1File.html#a0933ccd7df76fcf8fbcfe12c15dbf6c5">File::Open</a>(file_name.c_str(), <span class="stringliteral">&quot;a&quot;</span>);</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160; <span class="keywordflow">if</span> (file == NULL) {</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160; <span class="keywordflow">return</span> Status(</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160; error::FILE_FAILURE,</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160; <span class="stringliteral">&quot;Cannot open file for append &quot;</span> + options().output_file_name);</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160; }</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160; file = <a class="code" href="../../de/d19/classedash__packager_1_1media_1_1File.html#a0933ccd7df76fcf8fbcfe12c15dbf6c5">File::Open</a>(GetSegmentName(options().segment_template,</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160; sidx()-&gt;earliest_presentation_time,</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160; num_segments_++,</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160; options().bandwidth).c_str(),</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160; <span class="stringliteral">&quot;w&quot;</span>);</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; <span class="keywordflow">if</span> (file == NULL) {</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160; <span class="keywordflow">return</span> Status(error::FILE_FAILURE,</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160; <span class="stringliteral">&quot;Cannot open file for write &quot;</span> + file_name);</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160; }</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160; styp_-&gt;Write(buffer.get());</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160; }</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160;</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160; <span class="comment">// If num_subsegments_per_sidx is negative, no SIDX box is generated.</span></div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; <span class="keywordflow">if</span> (options().<a class="code" href="../../de/d57/structedash__packager_1_1media_1_1MuxerOptions.html#a93714f081569ea56ed626eb057c1761f">num_subsegments_per_sidx</a> &gt;= 0)</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160; sidx()-&gt;<a class="code" href="../../d7/d8a/structedash__packager_1_1media_1_1mp4_1_1Box.html#aa7a756828b5514fcd3eaf16d86c413c0">Write</a>(buffer.get());</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160;</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160; <span class="keyword">const</span> <span class="keywordtype">size_t</span> segment_size = buffer-&gt;Size() + fragment_buffer()-&gt;Size();</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160; DCHECK_NE(segment_size, 0u);</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160;</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160; Status status = buffer-&gt;WriteToFile(file);</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160; <span class="keywordflow">if</span> (status.ok())</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160; status = fragment_buffer()-&gt;<a class="code" href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html#aa83fe945386e5a75d3c377904fdddce2">WriteToFile</a>(file);</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160;</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160; <span class="keywordflow">if</span> (!file-&gt;Close())</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160; LOG(WARNING) &lt;&lt; <span class="stringliteral">&quot;Failed to close the file properly: &quot;</span> &lt;&lt; file_name;</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>&#160;</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>&#160; <span class="keywordflow">if</span> (!status.ok())</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>&#160; <span class="keywordflow">return</span> status;</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160;</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160; uint64_t segment_duration = 0;</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160; <span class="comment">// ISO/IEC 23009-1:2012: the value shall be identical to sum of the the</span></div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160; <span class="comment">// values of all Subsegment_duration fields in the first sidx box.</span></div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i &lt; sidx()-&gt;references.size(); ++i)</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>&#160; segment_duration += sidx()-&gt;references[i].subsegment_duration;</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160;</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160; <a class="code" href="../../dc/de1/classedash__packager_1_1media_1_1mp4_1_1Segmenter.html#a287d51571c92704274550d9f1d246cf9">UpdateProgress</a>(segment_duration);</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>&#160; <span class="keywordflow">if</span> (muxer_listener()) {</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>&#160; muxer_listener()-&gt;<a class="code" href="../../df/de7/classedash__packager_1_1media_1_1MuxerListener.html#a5626ff553138db438c561db2ca0d05f2">OnSampleDurationReady</a>(<a class="code" href="../../dc/de1/classedash__packager_1_1media_1_1mp4_1_1Segmenter.html#ac2883a5eb0bd7abb50bc3968ac417901">sample_duration</a>());</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160; muxer_listener()-&gt;OnNewSegment(</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>&#160; sidx()-&gt;earliest_presentation_time, segment_duration, segment_size);</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>&#160; }</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>&#160;</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>&#160; <span class="keywordflow">return</span> Status::OK;</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>&#160;}</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>&#160;</div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>&#160;} <span class="comment">// namespace mp4</span></div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>&#160;} <span class="comment">// namespace media</span></div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>&#160;} <span class="comment">// namespace edash_packager</span></div>
<div class="ttc" id="structedash__packager_1_1media_1_1MuxerOptions_html_addd401a47b287f3c18cbdc4bfa1a6963"><div class="ttname"><a href="../../de/d57/structedash__packager_1_1media_1_1MuxerOptions.html#addd401a47b287f3c18cbdc4bfa1a6963">edash_packager::media::MuxerOptions::output_file_name</a></div><div class="ttdeci">std::string output_file_name</div><div class="ttdef"><b>Definition:</b> <a href="../../d0/d0e/muxer__options_8h_source.html#l00055">muxer_options.h:55</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1File_html_a42290da768cd34316d2f4c5fc3976b38"><div class="ttname"><a href="../../de/d19/classedash__packager_1_1media_1_1File.html#a42290da768cd34316d2f4c5fc3976b38">edash_packager::media::File::Close</a></div><div class="ttdeci">virtual bool Close()=0</div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1File_html"><div class="ttname"><a href="../../de/d19/classedash__packager_1_1media_1_1File.html">edash_packager::media::File</a></div><div class="ttdoc">Define an abstract file interface. </div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d4d/file_8h_source.html#l00022">file.h:22</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1File_html_a0933ccd7df76fcf8fbcfe12c15dbf6c5"><div class="ttname"><a href="../../de/d19/classedash__packager_1_1media_1_1File.html#a0933ccd7df76fcf8fbcfe12c15dbf6c5">edash_packager::media::File::Open</a></div><div class="ttdeci">virtual bool Open()=0</div><div class="ttdoc">Internal open. Should not be used directly. </div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1Status_html"><div class="ttname"><a href="../../d2/d90/classedash__packager_1_1media_1_1Status.html">edash_packager::media::Status</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d1/d13/status_8h_source.html#l00076">status.h:76</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1mp4_1_1MultiSegmentSegmenter_html_a789a8b0449e433076dfc0c2344d32280"><div class="ttname"><a href="../../dc/d7a/classedash__packager_1_1media_1_1mp4_1_1MultiSegmentSegmenter.html#a789a8b0449e433076dfc0c2344d32280">edash_packager::media::mp4::MultiSegmentSegmenter::GetIndexRange</a></div><div class="ttdeci">bool GetIndexRange(size_t *offset, size_t *size) override</div><div class="ttdef"><b>Definition:</b> <a href="../../d1/df1/multi__segment__segmenter_8cc_source.html#l00042">multi_segment_segmenter.cc:42</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1BufferWriter_html_aa83fe945386e5a75d3c377904fdddce2"><div class="ttname"><a href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html#aa83fe945386e5a75d3c377904fdddce2">edash_packager::media::BufferWriter::WriteToFile</a></div><div class="ttdeci">Status WriteToFile(File *file)</div><div class="ttdef"><b>Definition:</b> <a href="../../dd/dd3/buffer__writer_8cc_source.html#l00065">buffer_writer.cc:65</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1mp4_1_1Segmenter_html_ac2883a5eb0bd7abb50bc3968ac417901"><div class="ttname"><a href="../../dc/de1/classedash__packager_1_1media_1_1mp4_1_1Segmenter.html#ac2883a5eb0bd7abb50bc3968ac417901">edash_packager::media::mp4::Segmenter::sample_duration</a></div><div class="ttdeci">uint32_t sample_duration() const </div><div class="ttdef"><b>Definition:</b> <a href="../../d4/dd4/segmenter_8h_source.html#l00101">segmenter.h:101</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1mp4_1_1Segmenter_html_a287d51571c92704274550d9f1d246cf9"><div class="ttname"><a href="../../dc/de1/classedash__packager_1_1media_1_1mp4_1_1Segmenter.html#a287d51571c92704274550d9f1d246cf9">edash_packager::media::mp4::Segmenter::UpdateProgress</a></div><div class="ttdeci">void UpdateProgress(uint64_t progress)</div><div class="ttdoc">Update segmentation progress using ProgressListener. </div><div class="ttdef"><b>Definition:</b> <a href="../../d1/d08/segmenter_8cc_source.html#l00333">segmenter.cc:333</a></div></div>
<div class="ttc" id="structedash__packager_1_1media_1_1MuxerOptions_html_a93714f081569ea56ed626eb057c1761f"><div class="ttname"><a href="../../de/d57/structedash__packager_1_1media_1_1MuxerOptions.html#a93714f081569ea56ed626eb057c1761f">edash_packager::media::MuxerOptions::num_subsegments_per_sidx</a></div><div class="ttdeci">int num_subsegments_per_sidx</div><div class="ttdef"><b>Definition:</b> <a href="../../d0/d0e/muxer__options_8h_source.html#l00050">muxer_options.h:50</a></div></div>
<div class="ttc" id="structedash__packager_1_1media_1_1mp4_1_1Box_html_aa7a756828b5514fcd3eaf16d86c413c0"><div class="ttname"><a href="../../d7/d8a/structedash__packager_1_1media_1_1mp4_1_1Box.html#aa7a756828b5514fcd3eaf16d86c413c0">edash_packager::media::mp4::Box::Write</a></div><div class="ttdeci">void Write(BufferWriter *writer)</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d4d/box_8cc_source.html#l00025">box.cc:25</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1mp4_1_1Segmenter_html_a4e58a007d4daafe1b49a70d39e52e339"><div class="ttname"><a href="../../dc/de1/classedash__packager_1_1media_1_1mp4_1_1Segmenter.html#a4e58a007d4daafe1b49a70d39e52e339">edash_packager::media::mp4::Segmenter::SetComplete</a></div><div class="ttdeci">void SetComplete()</div><div class="ttdoc">Set progress to 100%. </div><div class="ttdef"><b>Definition:</b> <a href="../../d1/d08/segmenter_8cc_source.html#l00349">segmenter.cc:349</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1mp4_1_1MultiSegmentSegmenter_html_a88be93ad6cce209ceaf086ab98009516"><div class="ttname"><a href="../../dc/d7a/classedash__packager_1_1media_1_1mp4_1_1MultiSegmentSegmenter.html#a88be93ad6cce209ceaf086ab98009516">edash_packager::media::mp4::MultiSegmentSegmenter::GetInitRange</a></div><div class="ttdeci">bool GetInitRange(size_t *offset, size_t *size) override</div><div class="ttdef"><b>Definition:</b> <a href="../../d1/df1/multi__segment__segmenter_8cc_source.html#l00036">multi_segment_segmenter.cc:36</a></div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1MuxerListener_html_a5626ff553138db438c561db2ca0d05f2"><div class="ttname"><a href="../../df/de7/classedash__packager_1_1media_1_1MuxerListener.html#a5626ff553138db438c561db2ca0d05f2">edash_packager::media::MuxerListener::OnSampleDurationReady</a></div><div class="ttdeci">virtual void OnSampleDurationReady(uint32_t sample_duration)=0</div></div>
<div class="ttc" id="classedash__packager_1_1media_1_1BufferWriter_html"><div class="ttname"><a href="../../df/dde/classedash__packager_1_1media_1_1BufferWriter.html">edash_packager::media::BufferWriter</a></div><div class="ttdef"><b>Definition:</b> <a href="../../dd/dd2/buffer__writer_8h_source.html#l00022">buffer_writer.h:22</a></div></div>
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