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<li class="navelem"><a class="el" href="../../dir_39dc0668bd5a501998f94e8b4e546c71.html">media</a></li><li class="navelem"><a class="el" href="../../dir_c6ada2450b25ab5438a4dba6c9b890af.html">base</a></li> </ul>
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<div class="title">audio_stream_info.h</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Copyright 2014 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">#ifndef MEDIA_BASE_AUDIO_STREAM_INFO_H_</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor"></span><span class="preprocessor">#define MEDIA_BASE_AUDIO_STREAM_INFO_H_</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor"></span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include <vector></span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> </div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include "packager/media/base/stream_info.h"</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> </div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="keyword">namespace </span>edash_packager {</div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="keyword">namespace </span>media {</div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="keyword">enum</span> AudioCodec {</div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  kUnknownAudioCodec = 0,</div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  kCodecAAC,</div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  kCodecMP3,</div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  kCodecPCM,</div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  kCodecVorbis,</div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  kCodecFLAC,</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  kCodecAMR_NB,</div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  kCodecAMR_WB,</div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  kCodecPCM_MULAW,</div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  kCodecGSM_MS,</div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  kCodecPCM_S16BE,</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  kCodecPCM_S24BE,</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  kCodecOpus,</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  kCodecEAC3,</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  kNumAudioCodec</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="l00037"></a><span class="lineno"><a class="line" href="../../da/d27/classedash__packager_1_1media_1_1AudioStreamInfo.html"> 37</a></span> <span class="keyword">class </span><a class="code" href="../../da/d27/classedash__packager_1_1media_1_1AudioStreamInfo.html">AudioStreamInfo</a> : <span class="keyword">public</span> <a class="code" href="../../d6/d06/classedash__packager_1_1media_1_1StreamInfo.html">StreamInfo</a> {</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <a class="code" href="../../da/d27/classedash__packager_1_1media_1_1AudioStreamInfo.html#a014cdf015863a200c10cb72c3ec042ab">AudioStreamInfo</a>(<span class="keywordtype">int</span> track_id,</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  uint32_t time_scale,</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  uint64_t duration,</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  AudioCodec codec,</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keyword">const</span> std::string& codec_string,</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keyword">const</span> std::string& language,</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  uint8_t sample_bits,</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  uint8_t num_channels,</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  uint32_t sampling_frequency,</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keyword">const</span> uint8_t* extra_data,</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keywordtype">size_t</span> extra_data_size,</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordtype">bool</span> is_encrypted);</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordtype">bool</span> <a class="code" href="../../da/d27/classedash__packager_1_1media_1_1AudioStreamInfo.html#a98bbb5085d1dee09bd79b72d1efe590c">IsValidConfig</a>() <span class="keyword">const override</span>;</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  std::string <a class="code" href="../../da/d27/classedash__packager_1_1media_1_1AudioStreamInfo.html#a614479ac0820d6491845aa1a4bb85ba4">ToString</a>() <span class="keyword">const override</span>;</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> </div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  AudioCodec codec()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> codec_; }</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  uint8_t sample_bits()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> sample_bits_; }</div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  uint8_t sample_bytes()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> sample_bits_ / 8; }</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  uint8_t num_channels()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> num_channels_; }</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  uint32_t sampling_frequency()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> sampling_frequency_; }</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  uint32_t bytes_per_frame()<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">return</span> <span class="keyword">static_cast<</span>uint32_t<span class="keyword">></span>(num_channels_) * sample_bits_ / 8;</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  }</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>  <span class="keywordtype">void</span> set_sampling_frequency(<span class="keyword">const</span> uint32_t sampling_frequency) {</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  sampling_frequency_ = sampling_frequency;</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"> 71</span> </div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keyword">static</span> std::string <a class="code" href="../../da/d27/classedash__packager_1_1media_1_1AudioStreamInfo.html#aa62e486f463c867b8e2f41ebb4ecea34">GetCodecString</a>(AudioCodec codec,</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  uint8_t audio_object_type);</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"> 78</span>  <span class="keyword">private</span>:</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  ~<a class="code" href="../../da/d27/classedash__packager_1_1media_1_1AudioStreamInfo.html">AudioStreamInfo</a>() <span class="keyword">override</span>;</div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  AudioCodec codec_;</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  uint8_t sample_bits_;</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  uint8_t num_channels_;</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  uint32_t sampling_frequency_;</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> </div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="comment">// Not using DISALLOW_COPY_AND_ASSIGN here intentionally to allow the compiler</span></div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="comment">// generated copy constructor and assignment operator. Since the extra data is</span></div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="comment">// typically small, the performance impact is minimal.</span></div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> };</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> </div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> } <span class="comment">// namespace media</span></div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> } <span class="comment">// namespace edash_packager</span></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> <span class="preprocessor">#endif // MEDIA_BASE_AUDIO_STREAM_INFO_H_</span></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1AudioStreamInfo_html"><div class="ttname"><a href="../../da/d27/classedash__packager_1_1media_1_1AudioStreamInfo.html">edash_packager::media::AudioStreamInfo</a></div><div class="ttdoc">Holds audio stream information. </div><div class="ttdef"><b>Definition:</b> <a href="../../df/d32/audio__stream__info_8h_source.html#l00037">audio_stream_info.h:37</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1AudioStreamInfo_html_a614479ac0820d6491845aa1a4bb85ba4"><div class="ttname"><a href="../../da/d27/classedash__packager_1_1media_1_1AudioStreamInfo.html#a614479ac0820d6491845aa1a4bb85ba4">edash_packager::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#l00090">audio_stream_info.cc:90</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1StreamInfo_html"><div class="ttname"><a href="../../d6/d06/classedash__packager_1_1media_1_1StreamInfo.html">edash_packager::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#l00026">stream_info.h:26</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1AudioStreamInfo_html_a014cdf015863a200c10cb72c3ec042ab"><div class="ttname"><a href="../../da/d27/classedash__packager_1_1media_1_1AudioStreamInfo.html#a014cdf015863a200c10cb72c3ec042ab">edash_packager::media::AudioStreamInfo::AudioStreamInfo</a></div><div class="ttdeci">AudioStreamInfo(int track_id, uint32_t time_scale, uint64_t duration, AudioCodec codec, const std::string &codec_string, const std::string &language, uint8_t sample_bits, uint8_t num_channels, uint32_t sampling_frequency, const uint8_t *extra_data, size_t extra_data_size, 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#l00053">audio_stream_info.cc:53</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1AudioStreamInfo_html_a98bbb5085d1dee09bd79b72d1efe590c"><div class="ttname"><a href="../../da/d27/classedash__packager_1_1media_1_1AudioStreamInfo.html#a98bbb5085d1dee09bd79b72d1efe590c">edash_packager::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#l00082">audio_stream_info.cc:82</a></div></div>
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<div class="ttc" id="classedash__packager_1_1media_1_1AudioStreamInfo_html_aa62e486f463c867b8e2f41ebb4ecea34"><div class="ttname"><a href="../../da/d27/classedash__packager_1_1media_1_1AudioStreamInfo.html#aa62e486f463c867b8e2f41ebb4ecea34">edash_packager::media::AudioStreamInfo::GetCodecString</a></div><div class="ttdeci">static std::string GetCodecString(AudioCodec codec, uint8_t audio_object_type)</div><div class="ttdef"><b>Definition:</b> <a href="../../da/d04/audio__stream__info_8cc_source.html#l00098">audio_stream_info.cc:98</a></div></div>
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