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<div class="title">es_descriptor.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 (c) 2012 The Chromium Authors. All rights reserved.</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// Use of this source code is governed by a BSD-style license that can be</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// found in the LICENSE file.</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> </div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="preprocessor">#ifndef MEDIA_CODECS_ES_DESCRIPTOR_H_</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="preprocessor"></span><span class="preprocessor">#define MEDIA_CODECS_ES_DESCRIPTOR_H_</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor"></span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#include <stddef.h></span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#include <stdint.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 <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="keyword">namespace </span>shaka {</div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="keyword">namespace </span>media {</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">class </span>BitReader;</div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="keyword">class </span>BufferWriter;</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="comment">// The following values are extracted from ISO 14496 Part 1 Table 5 -</span></div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment">// objectTypeIndication Values. Only values currently in use are included.</span></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="keyword">enum</span> ObjectType {</div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  kForbidden = 0,</div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  kISO_14496_3 = 0x40, <span class="comment">// MPEG4 AAC</span></div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  kISO_13818_7_AAC_LC = 0x67, <span class="comment">// MPEG2 AAC-LC</span></div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  kDTSC = 0xA9, <span class="comment">// DTS Coherent Acoustics audio</span></div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  kDTSE = 0xAC, <span class="comment">// DTS Express low bit rate audio</span></div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  kDTSH = 0xAA, <span class="comment">// DTS-HD High Resolution Audio</span></div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  kDTSL = 0xAB, <span class="comment">// DTS-HD Master Audio</span></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="l00034"></a><span class="lineno"><a class="line" href="../../d5/d13/classshaka_1_1media_1_1ESDescriptor.html"> 34</a></span> <span class="keyword">class </span><a class="code" href="../../d5/d13/classshaka_1_1media_1_1ESDescriptor.html">ESDescriptor</a> {</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <a class="code" href="../../d5/d13/classshaka_1_1media_1_1ESDescriptor.html">ESDescriptor</a>();</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  ~<a class="code" href="../../d5/d13/classshaka_1_1media_1_1ESDescriptor.html">ESDescriptor</a>();</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordtype">bool</span> Parse(<span class="keyword">const</span> std::vector<uint8_t>& data);</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keywordtype">void</span> Write(<a class="code" href="../../dc/d41/classshaka_1_1media_1_1BufferWriter.html">BufferWriter</a>* writer) <span class="keyword">const</span>;</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keywordtype">size_t</span> ComputeSize() <span class="keyword">const</span>;</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  uint16_t esid()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> esid_; }</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keywordtype">void</span> set_esid(uint16_t esid) { esid_ = esid; }</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  uint32_t max_bitrate()<span class="keyword"> const </span>{<span class="keywordflow">return</span> max_bitrate_; }</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordtype">void</span> set_max_bitrate(uint32_t max_bitrate) { max_bitrate_ = max_bitrate; }</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>  uint32_t avg_bitrate()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> avg_bitrate_; }</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keywordtype">void</span> set_avg_bitrate(uint32_t avg_bitrate) { avg_bitrate_ = avg_bitrate; }</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>  ObjectType object_type()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> object_type_; }</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keywordtype">void</span> set_object_type(ObjectType object_type) { object_type_ = object_type; }</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>  <span class="keyword">const</span> std::vector<uint8_t>& decoder_specific_info()<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordflow">return</span> decoder_specific_info_;</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_decoder_specific_info(</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keyword">const</span> std::vector<uint8_t>& decoder_specific_info) {</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  decoder_specific_info_ = decoder_specific_info;</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="l00064"></a><span class="lineno"><a class="line" href="../../d5/d13/classshaka_1_1media_1_1ESDescriptor.html#a47592ec424dc9dd2beb5cc0f505e6681"> 64</a></span>  <span class="keywordtype">bool</span> <a class="code" href="../../d5/d13/classshaka_1_1media_1_1ESDescriptor.html#a47592ec424dc9dd2beb5cc0f505e6681">IsAAC</a>()<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> object_type_ == kISO_14496_3 || object_type_ == kISO_13818_7_AAC_LC;</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">bool</span> IsDTS()<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordflow">return</span> object_type_ == kDTSC || object_type_ == kDTSE ||</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  object_type_ == kDTSH || object_type_ == kDTSL;</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="l00073"></a><span class="lineno"> 73</span>  <span class="keyword">private</span>:</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keyword">enum</span> Tag {</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  kESDescrTag = 0x03,</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  kDecoderConfigDescrTag = 0x04,</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  kDecoderSpecificInfoTag = 0x05,</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  kSLConfigTag = 0x06,</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</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>  <span class="keywordtype">bool</span> ParseDecoderConfigDescriptor(BitReader* reader);</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keywordtype">bool</span> ParseDecoderSpecificInfo(BitReader* reader);</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> </div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  uint16_t esid_; <span class="comment">// Elementary Stream ID.</span></div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  ObjectType object_type_;</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  uint32_t max_bitrate_;</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  uint32_t avg_bitrate_;</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  std::vector<uint8_t> decoder_specific_info_;</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 shaka</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_CODECS_ES_DESCRIPTOR_H_</span></div>
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<div class="ttc" id="classshaka_1_1media_1_1BufferWriter_html"><div class="ttname"><a href="../../dc/d41/classshaka_1_1media_1_1BufferWriter.html">shaka::media::BufferWriter</a></div><div class="ttdef"><b>Definition:</b> <a href="../../dd/dd2/buffer__writer_8h_source.html#l00022">buffer_writer.h:22</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1ESDescriptor_html_a47592ec424dc9dd2beb5cc0f505e6681"><div class="ttname"><a href="../../d5/d13/classshaka_1_1media_1_1ESDescriptor.html#a47592ec424dc9dd2beb5cc0f505e6681">shaka::media::ESDescriptor::IsAAC</a></div><div class="ttdeci">bool IsAAC() const </div><div class="ttdef"><b>Definition:</b> <a href="../../da/dcb/es__descriptor_8h_source.html#l00064">es_descriptor.h:64</a></div></div>
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<div class="ttc" id="classshaka_1_1media_1_1ESDescriptor_html"><div class="ttname"><a href="../../d5/d13/classshaka_1_1media_1_1ESDescriptor.html">shaka::media::ESDescriptor</a></div><div class="ttdef"><b>Definition:</b> <a href="../../da/dcb/es__descriptor_8h_source.html#l00034">es_descriptor.h:34</a></div></div>
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