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<div class="title">stream_descriptor.cc</div> </div>
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<div class="contents">
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Copyright 2014 Google Inc. All rights reserved.</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Use of this source code is governed by a BSD-style</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// license that can be found in the LICENSE file or at</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// https://developers.google.com/open-source/licenses/bsd</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> </div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#include "packager/app/stream_descriptor.h"</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> </div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#include "packager/app/packager_util.h"</span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include "packager/base/logging.h"</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include "packager/base/strings/string_number_conversions.h"</span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include "packager/base/strings/string_split.h"</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include "packager/mpd/base/language_utils.h"</span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> </div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="keyword">namespace </span>edash_packager {</div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="keyword">namespace </span>media {</div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="keyword">namespace </span>{</div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="keyword">enum</span> FieldType {</div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  kUnknownField = 0,</div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  kStreamSelectorField,</div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  kInputField,</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  kOutputField,</div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  kSegmentTemplateField,</div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  kBandwidthField,</div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  kLanguageField,</div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  kOutputFormatField,</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="l00030"></a><span class="lineno"> 30</span> </div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="keyword">struct </span>FieldNameToTypeMapping {</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keyword">const</span> <span class="keywordtype">char</span>* field_name;</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  FieldType field_type;</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="l00035"></a><span class="lineno"> 35</span> </div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="keyword">const</span> FieldNameToTypeMapping kFieldNameTypeMappings[] = {</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  { <span class="stringliteral">"stream_selector"</span>, kStreamSelectorField },</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  { <span class="stringliteral">"stream"</span>, kStreamSelectorField },</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  { <span class="stringliteral">"input"</span>, kInputField },</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  { <span class="stringliteral">"in"</span>, kInputField },</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  { <span class="stringliteral">"output"</span>, kOutputField },</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  { <span class="stringliteral">"out"</span>, kOutputField },</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  { <span class="stringliteral">"init_segment"</span>, kOutputField },</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  { <span class="stringliteral">"segment_template"</span>, kSegmentTemplateField },</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  { <span class="stringliteral">"template"</span>, kSegmentTemplateField },</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  { <span class="stringliteral">"bandwidth"</span>, kBandwidthField },</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  { <span class="stringliteral">"bw"</span>, kBandwidthField },</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  { <span class="stringliteral">"bitrate"</span>, kBandwidthField },</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  { <span class="stringliteral">"language"</span>, kLanguageField },</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  { <span class="stringliteral">"lang"</span>, kLanguageField },</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  { <span class="stringliteral">"output_format"</span>, kOutputFormatField },</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  { <span class="stringliteral">"format"</span>, kOutputFormatField },</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> };</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> </div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> FieldType GetFieldType(<span class="keyword">const</span> std::string& field_name) {</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> idx = 0; idx < arraysize(kFieldNameTypeMappings); ++idx) {</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordflow">if</span> (field_name == kFieldNameTypeMappings[idx].field_name)</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keywordflow">return</span> kFieldNameTypeMappings[idx].field_type;</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  }</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keywordflow">return</span> kUnknownField;</div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> }</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> } <span class="comment">// anonymous namespace</span></div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> </div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> StreamDescriptor::StreamDescriptor()</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  : bandwidth(0), output_format(CONTAINER_UNKNOWN) {}</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> StreamDescriptor::~StreamDescriptor() {}</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> </div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="keywordtype">bool</span> InsertStreamDescriptor(<span class="keyword">const</span> std::string& descriptor_string,</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  StreamDescriptorList* descriptor_list) {</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  StreamDescriptor descriptor;</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> </div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="comment">// Split descriptor string into name/value pairs.</span></div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  base::StringPairs pairs;</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordflow">if</span> (!base::SplitStringIntoKeyValuePairs(descriptor_string,</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="charliteral">'='</span>,</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="charliteral">','</span>,</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  &pairs)) {</div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  LOG(ERROR) << <span class="stringliteral">"Invalid stream descriptors name/value pairs."</span>;</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</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="keywordflow">for</span> (base::StringPairs::const_iterator iter = pairs.begin();</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  iter != pairs.end(); ++iter) {</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordflow">switch</span> (GetFieldType(iter->first)) {</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordflow">case</span> kStreamSelectorField:</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  descriptor.stream_selector = iter->second;</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">break</span>;</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordflow">case</span> kInputField:</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  descriptor.input = iter->second;</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keywordflow">break</span>;</div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keywordflow">case</span> kOutputField:</div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  descriptor.output = iter->second;</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordflow">break</span>;</div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordflow">case</span> kSegmentTemplateField:</div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  descriptor.segment_template = iter->second;</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keywordflow">break</span>;</div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keywordflow">case</span> kBandwidthField: {</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keywordtype">unsigned</span> bw;</div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keywordflow">if</span> (!base::StringToUint(iter->second, &bw)) {</div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  LOG(ERROR) << <span class="stringliteral">"Non-numeric bandwidth specified."</span>;</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  }</div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  descriptor.bandwidth = bw;</div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordflow">break</span>;</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  }</div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordflow">case</span> kLanguageField: {</div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  std::string language = <a class="code" href="../../db/d09/namespaceedash__packager.html#a1082a6ff7615e61946ce7d6616f21dde">LanguageToISO_639_2</a>(iter->second);</div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keywordflow">if</span> (language == <span class="stringliteral">"und"</span>) {</div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  LOG(ERROR) << <span class="stringliteral">"Unknown/invalid language specified: "</span> << iter->second;</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  }</div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  DCHECK_EQ(3u, language.size());</div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  descriptor.language = language;</div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keywordflow">break</span>;</div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  }</div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keywordflow">case</span> kOutputFormatField: {</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  MediaContainerName output_format =</div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  DetermineContainerFromFormatName(iter->second);</div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordflow">if</span> (output_format == CONTAINER_UNKNOWN) {</div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  LOG(ERROR) << <span class="stringliteral">"Unrecognized output format "</span> << iter->second;</div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  }</div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  descriptor.output_format = output_format;</div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordflow">break</span>;</div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  }</div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordflow">default</span>:</div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  LOG(ERROR) << <span class="stringliteral">"Unknown field in stream descriptor (\""</span> << iter->first</div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  << <span class="stringliteral">"\")."</span>;</div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordflow">break</span>;</div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  }</div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  }</div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="comment">// Validate and insert the descriptor</span></div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keywordflow">if</span> (descriptor.input.empty()) {</div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  LOG(ERROR) << <span class="stringliteral">"Stream input not specified."</span>;</div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  }</div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordflow">if</span> (!FLAGS_dump_stream_info && descriptor.stream_selector.empty()) {</div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  LOG(ERROR) << <span class="stringliteral">"Stream stream_selector not specified."</span>;</div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  }</div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keywordflow">if</span> (!FLAGS_dump_stream_info && descriptor.output.empty()) {</div>
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  LOG(ERROR) << <span class="stringliteral">"Stream output not specified."</span>;</div>
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keywordflow">return</span> <span class="keyword">false</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>  descriptor_list->insert(descriptor);</div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span> }</div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> </div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> } <span class="comment">// namespace media</span></div>
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span> } <span class="comment">// namespace edash_packager</span></div>
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<div class="ttc" id="namespaceedash__packager_html_a1082a6ff7615e61946ce7d6616f21dde"><div class="ttname"><a href="../../db/d09/namespaceedash__packager.html#a1082a6ff7615e61946ce7d6616f21dde">edash_packager::LanguageToISO_639_2</a></div><div class="ttdeci">std::string LanguageToISO_639_2(const std::string &language)</div><div class="ttdef"><b>Definition:</b> <a href="../../d1/d72/language__utils_8cc_source.html#l00096">language_utils.cc:96</a></div></div>
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</a> 1.8.6
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