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<div class="title">audio_stream_info.cc</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Copyright 2014 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/media/base/audio_stream_info.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 <inttypes.h></span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include "packager/base/logging.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_number_conversions.h"</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include "packager/base/strings/stringprintf.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/limits.h"</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="keyword">namespace </span>shaka {</div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="keyword">namespace </span>media {</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>{</div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> std::string AudioCodecToString(Codec codec) {</div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  <span class="keywordflow">switch</span> (codec) {</div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  <span class="keywordflow">case</span> kCodecAAC:</div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  <span class="keywordflow">return</span> <span class="stringliteral">"AAC"</span>;</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  <span class="keywordflow">case</span> kCodecAC3:</div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  <span class="keywordflow">return</span> <span class="stringliteral">"AC3"</span>;</div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <span class="keywordflow">case</span> kCodecDTSC:</div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <span class="keywordflow">return</span> <span class="stringliteral">"DTSC"</span>;</div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <span class="keywordflow">case</span> kCodecDTSE:</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <span class="keywordflow">return</span> <span class="stringliteral">"DTSE"</span>;</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <span class="keywordflow">case</span> kCodecDTSH:</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <span class="keywordflow">return</span> <span class="stringliteral">"DTSH"</span>;</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keywordflow">case</span> kCodecDTSL:</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keywordflow">return</span> <span class="stringliteral">"DTSL"</span>;</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="keywordflow">case</span> kCodecDTSM:</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keywordflow">return</span> <span class="stringliteral">"DTS-"</span>;</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keywordflow">case</span> kCodecDTSP:</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keywordflow">return</span> <span class="stringliteral">"DTS+"</span>;</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keywordflow">case</span> kCodecEAC3:</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordflow">return</span> <span class="stringliteral">"EAC3"</span>;</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keywordflow">case</span> kCodecOpus:</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keywordflow">return</span> <span class="stringliteral">"Opus"</span>;</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keywordflow">case</span> kCodecVorbis:</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keywordflow">return</span> <span class="stringliteral">"Vorbis"</span>;</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keywordflow">default</span>:</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  NOTIMPLEMENTED() << <span class="stringliteral">"Unknown Audio Codec: "</span> << codec;</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordflow">return</span> <span class="stringliteral">"UnknownCodec"</span>;</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  }</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> }</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> } <span class="comment">// namespace</span></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"><a class="line" href="../../da/d4e/classshaka_1_1media_1_1AudioStreamInfo.html#a1333ea7b15790da37addb60ba49131b4"> 51</a></span> <a class="code" href="../../da/d4e/classshaka_1_1media_1_1AudioStreamInfo.html#a1333ea7b15790da37addb60ba49131b4">AudioStreamInfo::AudioStreamInfo</a>(</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordtype">int</span> track_id, uint32_t time_scale, uint64_t duration, Codec codec,</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keyword">const</span> std::string& codec_string, <span class="keyword">const</span> uint8_t* codec_config,</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordtype">size_t</span> codec_config_size, uint8_t sample_bits, uint8_t num_channels,</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  uint32_t sampling_frequency, uint64_t seek_preroll_ns,</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  uint64_t codec_delay_ns, uint32_t max_bitrate, uint32_t avg_bitrate,</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keyword">const</span> std::string& language, <span class="keywordtype">bool</span> is_encrypted)</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  : <a class="code" href="../../d5/db1/classshaka_1_1media_1_1StreamInfo.html">StreamInfo</a>(kStreamAudio, track_id, time_scale, duration, codec,</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  codec_string, codec_config, codec_config_size, language,</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  is_encrypted),</div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  sample_bits_(sample_bits),</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  num_channels_(num_channels),</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  sampling_frequency_(sampling_frequency),</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  seek_preroll_ns_(seek_preroll_ns),</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  codec_delay_ns_(codec_delay_ns),</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  max_bitrate_(max_bitrate),</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  avg_bitrate_(avg_bitrate) {}</div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> </div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> AudioStreamInfo::~AudioStreamInfo() {}</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> </div>
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<div class="line"><a name="l00071"></a><span class="lineno"><a class="line" href="../../da/d4e/classshaka_1_1media_1_1AudioStreamInfo.html#a3c50d026e8deadac46741143d4b5ddb9"> 71</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../da/d4e/classshaka_1_1media_1_1AudioStreamInfo.html#a3c50d026e8deadac46741143d4b5ddb9">AudioStreamInfo::IsValidConfig</a>()<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordflow">return</span> codec() != kUnknownCodec && num_channels_ != 0 &&</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  num_channels_ <= limits::kMaxChannels && sample_bits_ > 0 &&</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  sample_bits_ <= limits::kMaxBitsPerSample && sampling_frequency_ > 0 &&</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  sampling_frequency_ <= limits::kMaxSampleRate;</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> }</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> </div>
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<div class="line"><a name="l00078"></a><span class="lineno"><a class="line" href="../../da/d4e/classshaka_1_1media_1_1AudioStreamInfo.html#a7f94e51abcf522ff70e2456a8c8595df"> 78</a></span> std::string <a class="code" href="../../da/d4e/classshaka_1_1media_1_1AudioStreamInfo.html#a7f94e51abcf522ff70e2456a8c8595df">AudioStreamInfo::ToString</a>()<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  std::string str = base::StringPrintf(</div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="stringliteral">"%s codec: %s\n sample_bits: %d\n num_channels: %d\n "</span></div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="stringliteral">"sampling_frequency: %d\n language: %s\n"</span>,</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <a class="code" href="../../d5/db1/classshaka_1_1media_1_1StreamInfo.html#aa11d2fe5509ebfdc038aa3f2cdbbe00d">StreamInfo::ToString</a>().c_str(), AudioCodecToString(codec()).c_str(),</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  sample_bits_, num_channels_, sampling_frequency_, language().c_str());</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordflow">if</span> (seek_preroll_ns_ != 0) {</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  base::StringAppendF(&str, <span class="stringliteral">" seek_preroll_ns: %"</span> PRIu64 <span class="stringliteral">"\n"</span>,</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  seek_preroll_ns_);</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  }</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">if</span> (codec_delay_ns_ != 0) {</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  base::StringAppendF(&str, <span class="stringliteral">" codec_delay_ns: %"</span> PRIu64 <span class="stringliteral">"\n"</span>,</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  codec_delay_ns_);</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  }</div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keywordflow">return</span> str;</div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> }</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"><a class="line" href="../../da/d4e/classshaka_1_1media_1_1AudioStreamInfo.html#aee79e7aa61b741bb96f451c6de1c9d42"> 95</a></span> std::string <a class="code" href="../../da/d4e/classshaka_1_1media_1_1AudioStreamInfo.html#aee79e7aa61b741bb96f451c6de1c9d42">AudioStreamInfo::GetCodecString</a>(Codec codec,</div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  uint8_t audio_object_type) {</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keywordflow">switch</span> (codec) {</div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keywordflow">case</span> kCodecVorbis:</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keywordflow">return</span> <span class="stringliteral">"vorbis"</span>;</div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keywordflow">case</span> kCodecOpus:</div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordflow">return</span> <span class="stringliteral">"opus"</span>;</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keywordflow">case</span> kCodecAAC:</div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keywordflow">return</span> <span class="stringliteral">"mp4a.40."</span> + base::UintToString(audio_object_type);</div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordflow">case</span> kCodecDTSC:</div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordflow">return</span> <span class="stringliteral">"dtsc"</span>;</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordflow">case</span> kCodecDTSH:</div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordflow">return</span> <span class="stringliteral">"dtsh"</span>;</div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordflow">case</span> kCodecDTSL:</div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keywordflow">return</span> <span class="stringliteral">"dtsl"</span>;</div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keywordflow">case</span> kCodecDTSE:</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordflow">return</span> <span class="stringliteral">"dtse"</span>;</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordflow">case</span> kCodecDTSP:</div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keywordflow">return</span> <span class="stringliteral">"dts+"</span>;</div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keywordflow">case</span> kCodecDTSM:</div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keywordflow">return</span> <span class="stringliteral">"dts-"</span>;</div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordflow">case</span> kCodecAC3:</div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keywordflow">return</span> <span class="stringliteral">"ac-3"</span>;</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keywordflow">case</span> kCodecEAC3:</div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordflow">return</span> <span class="stringliteral">"ec-3"</span>;</div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordflow">default</span>:</div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  NOTIMPLEMENTED() << <span class="stringliteral">"Codec: "</span> << codec;</div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keywordflow">return</span> <span class="stringliteral">"unknown"</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> }</div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> </div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> } <span class="comment">// namespace media</span></div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> } <span class="comment">// namespace shaka</span></div>
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<div class="ttc" id="classshaka_1_1media_1_1StreamInfo_html"><div class="ttname"><a href="../../d5/db1/classshaka_1_1media_1_1StreamInfo.html">shaka::media::StreamInfo</a></div><div class="ttdoc">Abstract class holds stream information. </div><div class="ttdef"><b>Definition:</b> <a href="../../d8/daa/stream__info_8h_source.html#l00053">stream_info.h:53</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1AudioStreamInfo_html_a7f94e51abcf522ff70e2456a8c8595df"><div class="ttname"><a href="../../da/d4e/classshaka_1_1media_1_1AudioStreamInfo.html#a7f94e51abcf522ff70e2456a8c8595df">shaka::media::AudioStreamInfo::ToString</a></div><div class="ttdeci">std::string ToString() const override</div><div class="ttdef"><b>Definition:</b> <a href="../../da/d04/audio__stream__info_8cc_source.html#l00078">audio_stream_info.cc:78</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1AudioStreamInfo_html_a3c50d026e8deadac46741143d4b5ddb9"><div class="ttname"><a href="../../da/d4e/classshaka_1_1media_1_1AudioStreamInfo.html#a3c50d026e8deadac46741143d4b5ddb9">shaka::media::AudioStreamInfo::IsValidConfig</a></div><div class="ttdeci">bool IsValidConfig() const override</div><div class="ttdef"><b>Definition:</b> <a href="../../da/d04/audio__stream__info_8cc_source.html#l00071">audio_stream_info.cc:71</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1AudioStreamInfo_html_aee79e7aa61b741bb96f451c6de1c9d42"><div class="ttname"><a href="../../da/d4e/classshaka_1_1media_1_1AudioStreamInfo.html#aee79e7aa61b741bb96f451c6de1c9d42">shaka::media::AudioStreamInfo::GetCodecString</a></div><div class="ttdeci">static std::string GetCodecString(Codec codec, uint8_t audio_object_type)</div><div class="ttdef"><b>Definition:</b> <a href="../../da/d04/audio__stream__info_8cc_source.html#l00095">audio_stream_info.cc:95</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1AudioStreamInfo_html_a1333ea7b15790da37addb60ba49131b4"><div class="ttname"><a href="../../da/d4e/classshaka_1_1media_1_1AudioStreamInfo.html#a1333ea7b15790da37addb60ba49131b4">shaka::media::AudioStreamInfo::AudioStreamInfo</a></div><div class="ttdeci">AudioStreamInfo(int track_id, uint32_t time_scale, uint64_t duration, Codec codec, const std::string &codec_string, const uint8_t *codec_config, size_t codec_config_size, uint8_t sample_bits, uint8_t num_channels, uint32_t sampling_frequency, uint64_t seek_preroll_ns, uint64_t codec_delay_ns, uint32_t max_bitrate, uint32_t avg_bitrate, const std::string &language, bool is_encrypted)</div><div class="ttdoc">Construct an initialized audio stream info object. </div><div class="ttdef"><b>Definition:</b> <a href="../../da/d04/audio__stream__info_8cc_source.html#l00051">audio_stream_info.cc:51</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1StreamInfo_html_aa11d2fe5509ebfdc038aa3f2cdbbe00d"><div class="ttname"><a href="../../d5/db1/classshaka_1_1media_1_1StreamInfo.html#aa11d2fe5509ebfdc038aa3f2cdbbe00d">shaka::media::StreamInfo::ToString</a></div><div class="ttdeci">virtual std::string ToString() const </div><div class="ttdef"><b>Definition:</b> <a href="../../de/dfd/stream__info_8cc_source.html#l00037">stream_info.cc:37</a></div></div>
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