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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">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_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_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 <string></span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include <vector></span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> </div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include "packager/base/memory/ref_counted.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>shaka {</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">enum</span> StreamType {</div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  kStreamUnknown = 0,</div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  kStreamAudio,</div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  kStreamVideo,</div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  kStreamText,</div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> };</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div>
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<div class="line"><a name="l00026"></a><span class="lineno"><a class="line" href="../../d5/db1/classshaka_1_1media_1_1StreamInfo.html"> 26</a></span> <span class="keyword">class </span><a class="code" href="../../d5/db1/classshaka_1_1media_1_1StreamInfo.html">StreamInfo</a> : <span class="keyword">public</span> base::RefCountedThreadSafe<StreamInfo> {</div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <a class="code" href="../../d5/db1/classshaka_1_1media_1_1StreamInfo.html">StreamInfo</a>(StreamType stream_type,</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <span class="keywordtype">int</span> track_id,</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  uint32_t time_scale,</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  uint64_t duration,</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keyword">const</span> std::string& codec_string,</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keyword">const</span> std::string& language,</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="keyword">const</span> uint8_t* extra_data,</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keywordtype">size_t</span> extra_data_size,</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keywordtype">bool</span> is_encrypted);</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> </div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code" href="../../d5/db1/classshaka_1_1media_1_1StreamInfo.html#a6e5c5ade77b7bcf0b7822de568695dc8">IsValidConfig</a>() <span class="keyword">const</span> = 0;</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keyword">virtual</span> std::string <a class="code" href="../../d5/db1/classshaka_1_1media_1_1StreamInfo.html#aa11d2fe5509ebfdc038aa3f2cdbbe00d">ToString</a>() <span class="keyword">const</span>;</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  StreamType stream_type()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> stream_type_; }</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  uint32_t track_id()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> track_id_; }</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  uint32_t time_scale()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> time_scale_; }</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  uint64_t duration()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> duration_; }</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keyword">const</span> std::string& codec_string()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> codec_string_; }</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keyword">const</span> std::string& language()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> language_; }</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordtype">bool</span> is_encrypted()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> is_encrypted_; }</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>  <span class="keyword">const</span> std::vector<uint8_t>& extra_data()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> extra_data_; }</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordtype">void</span> set_duration(<span class="keywordtype">int</span> duration) { duration_ = duration; }</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> </div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keywordtype">void</span> set_extra_data(<span class="keyword">const</span> std::vector<uint8_t>& data) { extra_data_ = data; }</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="keywordtype">void</span> set_codec_string(<span class="keyword">const</span> std::string& codec_string) {</div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  codec_string_ = codec_string;</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> </div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keywordtype">void</span> set_language(<span class="keyword">const</span> std::string& language) { language_ = language; }</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> </div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keyword">protected</span>:</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keyword">friend</span> <span class="keyword">class </span>base::RefCountedThreadSafe<StreamInfo>;</div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keyword">virtual</span> ~StreamInfo();</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="keyword">private</span>:</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="comment">// Whether the stream is Audio or Video.</span></div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  StreamType stream_type_;</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  uint32_t track_id_;</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="comment">// The actual time is calculated as time / time_scale_ in seconds.</span></div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  uint32_t time_scale_;</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="comment">// Duration base on time_scale.</span></div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  uint64_t duration_;</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  std::string codec_string_;</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  std::string language_;</div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="comment">// Whether the stream is potentially encrypted.</span></div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="comment">// Note that in a potentially encrypted stream, individual buffers</span></div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="comment">// can be encrypted or not encrypted.</span></div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordtype">bool</span> is_encrypted_;</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="comment">// Optional byte data required for some audio/video decoders such as Vorbis</span></div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="comment">// codebooks.</span></div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  std::vector<uint8_t> extra_data_;</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="comment">// Not using DISALLOW_COPY_AND_ASSIGN here intentionally to allow the compiler</span></div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</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="l00090"></a><span class="lineno"> 90</span>  <span class="comment">// typically small, the performance impact is minimal.</span></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> </div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> } <span class="comment">// namespace media</span></div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> } <span class="comment">// namespace shaka</span></div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="preprocessor">#endif // MEDIA_BASE_STREAM_INFO_H_</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#l00026">stream_info.h:26</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1StreamInfo_html_a6e5c5ade77b7bcf0b7822de568695dc8"><div class="ttname"><a href="../../d5/db1/classshaka_1_1media_1_1StreamInfo.html#a6e5c5ade77b7bcf0b7822de568695dc8">shaka::media::StreamInfo::IsValidConfig</a></div><div class="ttdeci">virtual bool IsValidConfig() const =0</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#l00040">stream_info.cc:40</a></div></div>
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