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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">// Copyright 2014 Google Inc. All rights reserved.</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment">// Use of this source code is governed by a BSD-style</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment">// license that can be found in the LICENSE file or at</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment">// https://developers.google.com/open-source/licenses/bsd</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;</div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="preprocessor">#ifndef MEDIA_BASE_VIDEO_STREAM_INFO_H_</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define MEDIA_BASE_VIDEO_STREAM_INFO_H_</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="preprocessor">#include &quot;packager/media/base/stream_info.h&quot;</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;</div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="keyword">namespace </span>shaka {</div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="keyword">namespace </span>media {</div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;</div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="keyword">enum class</span> H26xStreamFormat {</div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160; kUnSpecified,</div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160; kAnnexbByteStream,</div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160; kNalUnitStreamWithParameterSetNalus,</div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160; kNalUnitStreamWithoutParameterSetNalus,</div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;};</div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;</div>
<div class="line"><a name="l00023"></a><span class="lineno"><a class="line" href="../../d6/db1/classshaka_1_1media_1_1VideoStreamInfo.html"> 23</a></span>&#160;<span class="keyword">class </span><a class="code" href="../../d6/db1/classshaka_1_1media_1_1VideoStreamInfo.html">VideoStreamInfo</a> : <span class="keyword">public</span> <a class="code" href="../../d5/db1/classshaka_1_1media_1_1StreamInfo.html">StreamInfo</a> {</div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160; <span class="keyword">public</span>:</div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160; <a class="code" href="../../d6/db1/classshaka_1_1media_1_1VideoStreamInfo.html">VideoStreamInfo</a>() = <span class="keywordflow">default</span>;</div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;</div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160; <a class="code" href="../../d6/db1/classshaka_1_1media_1_1VideoStreamInfo.html">VideoStreamInfo</a>(<span class="keywordtype">int</span> track_id,</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160; uint32_t time_scale,</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160; uint64_t duration,</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160; Codec codec,</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160; H26xStreamFormat h26x_stream_format,</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; <span class="keyword">const</span> std::string&amp; codec_string,</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160; <span class="keyword">const</span> uint8_t* codec_config,</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; <span class="keywordtype">size_t</span> codec_config_size,</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160; uint16_t width,</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160; uint16_t height,</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; uint32_t <a class="code" href="../../d6/db1/classshaka_1_1media_1_1VideoStreamInfo.html#af5f655f36865a3af28bd0c7328e9a91e">pixel_width</a>,</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; uint32_t <a class="code" href="../../d6/db1/classshaka_1_1media_1_1VideoStreamInfo.html#ae420a97a606ef54be16beb49e42cd135">pixel_height</a>,</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160; uint32_t trick_play_factor,</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; uint8_t nalu_length_size,</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; <span class="keyword">const</span> std::string&amp; language,</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; <span class="keywordtype">bool</span> is_encrypted);</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160;</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; ~<a class="code" href="../../d6/db1/classshaka_1_1media_1_1VideoStreamInfo.html">VideoStreamInfo</a>() <span class="keyword">override</span>;</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160;</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="../../d6/db1/classshaka_1_1media_1_1VideoStreamInfo.html#a8978ca2bc2dd63c2e25e77cdcf676162">IsValidConfig</a>() <span class="keyword">const override</span>;</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; std::string <a class="code" href="../../d6/db1/classshaka_1_1media_1_1VideoStreamInfo.html#a9cac8e75d76f1192a48d1dcf61435537">ToString</a>() <span class="keyword">const override</span>;</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160;</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; H26xStreamFormat h26x_stream_format()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> h26x_stream_format_; }</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; uint16_t width()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> width_; }</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; uint16_t height()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> height_; }</div>
<div class="line"><a name="l00060"></a><span class="lineno"><a class="line" href="../../d6/db1/classshaka_1_1media_1_1VideoStreamInfo.html#af5f655f36865a3af28bd0c7328e9a91e"> 60</a></span>&#160; uint32_t <a class="code" href="../../d6/db1/classshaka_1_1media_1_1VideoStreamInfo.html#af5f655f36865a3af28bd0c7328e9a91e">pixel_width</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> pixel_width_; }</div>
<div class="line"><a name="l00063"></a><span class="lineno"><a class="line" href="../../d6/db1/classshaka_1_1media_1_1VideoStreamInfo.html#ae420a97a606ef54be16beb49e42cd135"> 63</a></span>&#160; uint32_t <a class="code" href="../../d6/db1/classshaka_1_1media_1_1VideoStreamInfo.html#ae420a97a606ef54be16beb49e42cd135">pixel_height</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> pixel_height_; }</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; uint8_t nalu_length_size()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> nalu_length_size_; }</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; uint32_t trick_play_factor()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> trick_play_factor_; }</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; uint32_t playback_rate()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> playback_rate_; }</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; <span class="keyword">const</span> std::vector&lt;uint8_t&gt;&amp; eme_init_data()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> eme_init_data_; }</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160;</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; <span class="keywordtype">void</span> set_width(uint32_t width) { width_ = width; }</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; <span class="keywordtype">void</span> set_height(uint32_t height) { height_ = height; }</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; <span class="keywordtype">void</span> set_pixel_width(uint32_t pixel_width) { pixel_width_ = <a class="code" href="../../d6/db1/classshaka_1_1media_1_1VideoStreamInfo.html#af5f655f36865a3af28bd0c7328e9a91e">pixel_width</a>; }</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; <span class="keywordtype">void</span> set_pixel_height(uint32_t pixel_height) { pixel_height_ = <a class="code" href="../../d6/db1/classshaka_1_1media_1_1VideoStreamInfo.html#ae420a97a606ef54be16beb49e42cd135">pixel_height</a>; }</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; <span class="keywordtype">void</span> set_trick_play_factor(uint32_t trick_play_factor) {</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; trick_play_factor_ = trick_play_factor;</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; }</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; <span class="keywordtype">void</span> set_playback_rate(uint32_t playback_rate) {</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160; playback_rate_ = playback_rate;</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; }</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; <span class="keywordtype">void</span> set_eme_init_data(<span class="keyword">const</span> uint8_t* eme_init_data,</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; <span class="keywordtype">size_t</span> eme_init_data_size) {</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; eme_init_data_.assign(eme_init_data, eme_init_data + eme_init_data_size);</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; }</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160;</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; <span class="keyword">private</span>:</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; H26xStreamFormat h26x_stream_format_;</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; uint16_t width_;</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; uint16_t height_;</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160;</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; <span class="comment">// pixel_width_:pixel_height_ is the sample aspect ratio.</span></div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160; <span class="comment">// 0 means unknown.</span></div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160; uint32_t pixel_width_;</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; uint32_t pixel_height_;</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; uint32_t trick_play_factor_ = 0; <span class="comment">// Non-zero for trick-play streams.</span></div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160;</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; <span class="comment">// Playback rate is the attribute for trick play stream, which signals the</span></div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; <span class="comment">// playout capabilities</span></div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; <span class="comment">// (http://dashif.org/wp-content/uploads/2016/12/DASH-IF-IOP-v4.0-clean.pdf,</span></div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; <span class="comment">// page 18, line 1). It is the ratio of main frame rate to the trick play</span></div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; <span class="comment">// frame rate. If the time scale and frame duration are not modified after</span></div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; <span class="comment">// trick play handler processing, the playback_rate equals to the number of</span></div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; <span class="comment">// frames between consecutive key frames selected for trick play stream. For</span></div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; <span class="comment">// example, if the video stream has GOP size of 10 and the trick play factor</span></div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; <span class="comment">// is 3, the key frames are in this trick play stream are [frame_0, frame_30,</span></div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; <span class="comment">// frame_60, ...]. Then the playback_rate is 30.</span></div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; <span class="comment">// Non-zero for trick-play streams.</span></div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; uint32_t playback_rate_ = 0;</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160;</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; <span class="comment">// Specifies the size of the NAL unit length field. Can be 1, 2 or 4 bytes, or</span></div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; <span class="comment">// 0 if the stream is not a NAL structured video stream or if it is an AnnexB</span></div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; <span class="comment">// byte stream.</span></div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; uint8_t nalu_length_size_;</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160;</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; <span class="comment">// Container-specific data used by CDM to generate a license request:</span></div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; <span class="comment">// https://w3c.github.io/encrypted-media/#initialization-data.</span></div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; std::vector&lt;uint8_t&gt; eme_init_data_;</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160;</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; <span class="comment">// Not using DISALLOW_COPY_AND_ASSIGN here intentionally to allow the compiler</span></div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; <span class="comment">// generated copy constructor and assignment operator. Since the extra data is</span></div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; <span class="comment">// typically small, the performance impact is minimal.</span></div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160;};</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160;</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160;} <span class="comment">// namespace media</span></div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160;} <span class="comment">// namespace shaka</span></div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160;</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160;<span class="preprocessor">#endif // MEDIA_BASE_VIDEO_STREAM_INFO_H_</span></div>
<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#l00057">stream_info.h:57</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1VideoStreamInfo_html_a8978ca2bc2dd63c2e25e77cdcf676162"><div class="ttname"><a href="../../d6/db1/classshaka_1_1media_1_1VideoStreamInfo.html#a8978ca2bc2dd63c2e25e77cdcf676162">shaka::media::VideoStreamInfo::IsValidConfig</a></div><div class="ttdeci">bool IsValidConfig() const override</div><div class="ttdef"><b>Definition:</b> <a href="../../dd/d19/video__stream__info_8cc_source.html#l00075">video_stream_info.cc:75</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1VideoStreamInfo_html_ae420a97a606ef54be16beb49e42cd135"><div class="ttname"><a href="../../d6/db1/classshaka_1_1media_1_1VideoStreamInfo.html#ae420a97a606ef54be16beb49e42cd135">shaka::media::VideoStreamInfo::pixel_height</a></div><div class="ttdeci">uint32_t pixel_height() const </div><div class="ttdef"><b>Definition:</b> <a href="../../d7/d87/video__stream__info_8h_source.html#l00063">video_stream_info.h:63</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1VideoStreamInfo_html_af5f655f36865a3af28bd0c7328e9a91e"><div class="ttname"><a href="../../d6/db1/classshaka_1_1media_1_1VideoStreamInfo.html#af5f655f36865a3af28bd0c7328e9a91e">shaka::media::VideoStreamInfo::pixel_width</a></div><div class="ttdeci">uint32_t pixel_width() const </div><div class="ttdef"><b>Definition:</b> <a href="../../d7/d87/video__stream__info_8h_source.html#l00060">video_stream_info.h:60</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1VideoStreamInfo_html"><div class="ttname"><a href="../../d6/db1/classshaka_1_1media_1_1VideoStreamInfo.html">shaka::media::VideoStreamInfo</a></div><div class="ttdoc">Holds video stream information. </div><div class="ttdef"><b>Definition:</b> <a href="../../d7/d87/video__stream__info_8h_source.html#l00023">video_stream_info.h:23</a></div></div>
<div class="ttc" id="classshaka_1_1media_1_1VideoStreamInfo_html_a9cac8e75d76f1192a48d1dcf61435537"><div class="ttname"><a href="../../d6/db1/classshaka_1_1media_1_1VideoStreamInfo.html#a9cac8e75d76f1192a48d1dcf61435537">shaka::media::VideoStreamInfo::ToString</a></div><div class="ttdeci">std::string ToString() const override</div><div class="ttdef"><b>Definition:</b> <a href="../../dd/d19/video__stream__info_8cc_source.html#l00082">video_stream_info.cc:82</a></div></div>
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