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<div class="title">tracks_builder.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 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">#include "packager/media/formats/webm/tracks_builder.h"</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/base/logging.h"</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#include "packager/media/formats/webm/webm_constants.h"</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> </div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="keyword">namespace </span>shaka {</div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="keyword">namespace </span>media {</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="comment">// Returns size of an integer, formatted using Matroska serialization.</span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="keyword">static</span> <span class="keywordtype">int</span> GetUIntMkvSize(uint64_t value) {</div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>  <span class="keywordflow">if</span> (value < 0x07FULL)</div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>  <span class="keywordflow">return</span> 1;</div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>  <span class="keywordflow">if</span> (value < 0x03FFFULL)</div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  <span class="keywordflow">return</span> 2;</div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  <span class="keywordflow">if</span> (value < 0x01FFFFFULL)</div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  <span class="keywordflow">return</span> 3;</div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  <span class="keywordflow">if</span> (value < 0x0FFFFFFFULL)</div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  <span class="keywordflow">return</span> 4;</div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  <span class="keywordflow">if</span> (value < 0x07FFFFFFFFULL)</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  <span class="keywordflow">return</span> 5;</div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  <span class="keywordflow">if</span> (value < 0x03FFFFFFFFFFULL)</div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <span class="keywordflow">return</span> 6;</div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <span class="keywordflow">if</span> (value < 0x01FFFFFFFFFFFFULL)</div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <span class="keywordflow">return</span> 7;</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <span class="keywordflow">return</span> 8;</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="l00031"></a><span class="lineno"> 31</span> </div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment">// Returns the minimium size required to serialize an integer value.</span></div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="keyword">static</span> <span class="keywordtype">int</span> GetUIntSize(uint64_t value) {</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="keywordflow">if</span> (value < 0x0100ULL)</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keywordflow">return</span> 1;</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keywordflow">if</span> (value < 0x010000ULL)</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keywordflow">return</span> 2;</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keywordflow">if</span> (value < 0x01000000ULL)</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordflow">return</span> 3;</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keywordflow">if</span> (value < 0x0100000000ULL)</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keywordflow">return</span> 4;</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keywordflow">if</span> (value < 0x010000000000ULL)</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keywordflow">return</span> 5;</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keywordflow">if</span> (value < 0x01000000000000ULL)</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordflow">return</span> 6;</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordflow">if</span> (value < 0x0100000000000000ULL)</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordflow">return</span> 7;</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordflow">return</span> 8;</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</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"> 51</span> <span class="keyword">static</span> <span class="keywordtype">int</span> MasterElementSize(<span class="keywordtype">int</span> element_id, <span class="keywordtype">int</span> payload_size) {</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordflow">return</span> GetUIntSize(element_id) + GetUIntMkvSize(payload_size) + payload_size;</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> </div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="keyword">static</span> <span class="keywordtype">int</span> UIntElementSize(<span class="keywordtype">int</span> element_id, uint64_t value) {</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordflow">return</span> GetUIntSize(element_id) + 1 + GetUIntSize(value);</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> </div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="keyword">static</span> <span class="keywordtype">int</span> DoubleElementSize(<span class="keywordtype">int</span> element_id) {</div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keywordflow">return</span> GetUIntSize(element_id) + 1 + 8;</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="l00063"></a><span class="lineno"> 63</span> <span class="keyword">static</span> <span class="keywordtype">int</span> StringElementSize(<span class="keywordtype">int</span> element_id, <span class="keyword">const</span> std::string& value) {</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keywordflow">return</span> GetUIntSize(element_id) + GetUIntMkvSize(value.length()) +</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  static_cast<int>(value.length());</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="keyword">static</span> <span class="keywordtype">void</span> SerializeInt(uint8_t** buf_ptr,</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordtype">int</span>* buf_size_ptr,</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  int64_t value,</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordtype">int</span> size) {</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  uint8_t*& buf = *buf_ptr;</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordtype">int</span>& buf_size = *buf_size_ptr;</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> idx = 1; idx <= size; ++idx) {</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  *buf++ = <span class="keyword">static_cast<</span>uint8_t<span class="keyword">></span>(value >> ((size - idx) * 8));</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  --buf_size;</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  }</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="keyword">static</span> <span class="keywordtype">void</span> SerializeDouble(uint8_t** buf_ptr,</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keywordtype">int</span>* buf_size_ptr,</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordtype">double</span> value) {</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="comment">// Use a union to convert |value| to native endian integer bit pattern.</span></div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keyword">union </span>{</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordtype">double</span> src;</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  int64_t dst;</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  } tmp;</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  tmp.src = value;</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">// Write the bytes from native endian |tmp.dst| to big-endian form in |buf|.</span></div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  SerializeInt(buf_ptr, buf_size_ptr, tmp.dst, 8);</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"> 95</span> <span class="keyword">static</span> <span class="keywordtype">void</span> WriteElementId(uint8_t** buf, <span class="keywordtype">int</span>* buf_size, <span class="keywordtype">int</span> element_id) {</div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  SerializeInt(buf, buf_size, element_id, GetUIntSize(element_id));</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> }</div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> </div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="keyword">static</span> <span class="keywordtype">void</span> WriteUInt(uint8_t** buf, <span class="keywordtype">int</span>* buf_size, uint64_t value) {</div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> size = GetUIntMkvSize(value);</div>
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|
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  value |= (1ULL << (size * 7)); <span class="comment">// Matroska formatting</span></div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  SerializeInt(buf, buf_size, value, size);</div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> }</div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> </div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="keyword">static</span> <span class="keywordtype">void</span> WriteMasterElement(uint8_t** buf,</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordtype">int</span>* buf_size,</div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordtype">int</span> element_id,</div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordtype">int</span> payload_size) {</div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  WriteElementId(buf, buf_size, element_id);</div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  WriteUInt(buf, buf_size, payload_size);</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span> }</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span> </div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="keyword">static</span> <span class="keywordtype">void</span> WriteUIntElement(uint8_t** buf,</div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keywordtype">int</span>* buf_size,</div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keywordtype">int</span> element_id,</div>
|
|
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  uint64_t value) {</div>
|
|
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  WriteElementId(buf, buf_size, element_id);</div>
|
|
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> </div>
|
|
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> size = GetUIntSize(value);</div>
|
|
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  WriteUInt(buf, buf_size, size);</div>
|
|
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> </div>
|
|
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  SerializeInt(buf, buf_size, value, size);</div>
|
|
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> }</div>
|
|
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> </div>
|
|
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="keyword">static</span> <span class="keywordtype">void</span> WriteDoubleElement(uint8_t** buf,</div>
|
|
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keywordtype">int</span>* buf_size,</div>
|
|
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordtype">int</span> element_id,</div>
|
|
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordtype">double</span> value) {</div>
|
|
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  WriteElementId(buf, buf_size, element_id);</div>
|
|
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  WriteUInt(buf, buf_size, 8);</div>
|
|
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  SerializeDouble(buf, buf_size, value);</div>
|
|
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span> }</div>
|
|
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> </div>
|
|
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> <span class="keyword">static</span> <span class="keywordtype">void</span> WriteStringElement(uint8_t** buf_ptr,</div>
|
|
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keywordtype">int</span>* buf_size_ptr,</div>
|
|
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordtype">int</span> element_id,</div>
|
|
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keyword">const</span> std::string& value) {</div>
|
|
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  uint8_t*& buf = *buf_ptr;</div>
|
|
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordtype">int</span>& buf_size = *buf_size_ptr;</div>
|
|
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> </div>
|
|
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  WriteElementId(&buf, &buf_size, element_id);</div>
|
|
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> </div>
|
|
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keyword">const</span> uint64_t size = value.length();</div>
|
|
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  WriteUInt(&buf, &buf_size, size);</div>
|
|
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span> </div>
|
|
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  memcpy(buf, value.data(), size);</div>
|
|
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  buf += size;</div>
|
|
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  buf_size -= size;</div>
|
|
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span> }</div>
|
|
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> </div>
|
|
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> TracksBuilder::TracksBuilder(<span class="keywordtype">bool</span> allow_invalid_values)</div>
|
|
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  : allow_invalid_values_(allow_invalid_values) {}</div>
|
|
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span> TracksBuilder::TracksBuilder()</div>
|
|
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  : allow_invalid_values_(false) {}</div>
|
|
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> TracksBuilder::~TracksBuilder() {}</div>
|
|
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span> </div>
|
|
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span> <span class="keywordtype">void</span> TracksBuilder::AddVideoTrack(<span class="keywordtype">int</span> track_num,</div>
|
|
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  uint64_t track_uid,</div>
|
|
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keyword">const</span> std::string& codec_id,</div>
|
|
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keyword">const</span> std::string& name,</div>
|
|
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keyword">const</span> std::string& language,</div>
|
|
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordtype">int</span> default_duration,</div>
|
|
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordtype">int</span> video_pixel_width,</div>
|
|
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordtype">int</span> video_pixel_height) {</div>
|
|
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  AddTrackInternal(track_num, kWebMTrackTypeVideo, track_uid, codec_id, name,</div>
|
|
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  language, default_duration, video_pixel_width,</div>
|
|
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  video_pixel_height, -1, -1);</div>
|
|
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> }</div>
|
|
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> </div>
|
|
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span> <span class="keywordtype">void</span> TracksBuilder::AddAudioTrack(<span class="keywordtype">int</span> track_num,</div>
|
|
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  uint64_t track_uid,</div>
|
|
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keyword">const</span> std::string& codec_id,</div>
|
|
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="keyword">const</span> std::string& name,</div>
|
|
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keyword">const</span> std::string& language,</div>
|
|
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keywordtype">int</span> default_duration,</div>
|
|
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keywordtype">int</span> audio_channels,</div>
|
|
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="keywordtype">double</span> audio_sampling_frequency) {</div>
|
|
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  AddTrackInternal(track_num, kWebMTrackTypeAudio, track_uid, codec_id, name,</div>
|
|
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  language, default_duration, -1, -1, audio_channels,</div>
|
|
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  audio_sampling_frequency);</div>
|
|
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span> }</div>
|
|
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span> </div>
|
|
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span> <span class="keywordtype">void</span> TracksBuilder::AddTextTrack(<span class="keywordtype">int</span> track_num,</div>
|
|
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  uint64_t track_uid,</div>
|
|
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keyword">const</span> std::string& codec_id,</div>
|
|
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keyword">const</span> std::string& name,</div>
|
|
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keyword">const</span> std::string& language) {</div>
|
|
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  AddTrackInternal(track_num, kWebMTrackTypeSubtitlesOrCaptions, track_uid,</div>
|
|
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  codec_id, name, language, -1, -1, -1, -1, -1);</div>
|
|
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span> }</div>
|
|
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span> </div>
|
|
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span> std::vector<uint8_t> TracksBuilder::Finish() {</div>
|
|
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="comment">// Allocate the storage</span></div>
|
|
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  std::vector<uint8_t> buffer;</div>
|
|
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  buffer.resize(GetTracksSize());</div>
|
|
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span> </div>
|
|
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="comment">// Populate the storage with a tracks header</span></div>
|
|
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  WriteTracks(&buffer[0], static_cast<int>(buffer.size()));</div>
|
|
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span> </div>
|
|
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keywordflow">return</span> buffer;</div>
|
|
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span> }</div>
|
|
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span> </div>
|
|
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span> <span class="keywordtype">void</span> TracksBuilder::AddTrackInternal(<span class="keywordtype">int</span> track_num,</div>
|
|
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="keywordtype">int</span> track_type,</div>
|
|
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  uint64_t track_uid,</div>
|
|
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keyword">const</span> std::string& codec_id,</div>
|
|
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="keyword">const</span> std::string& name,</div>
|
|
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="keyword">const</span> std::string& language,</div>
|
|
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="keywordtype">int</span> default_duration,</div>
|
|
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="keywordtype">int</span> video_pixel_width,</div>
|
|
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="keywordtype">int</span> video_pixel_height,</div>
|
|
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordtype">int</span> audio_channels,</div>
|
|
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="keywordtype">double</span> audio_sampling_frequency) {</div>
|
|
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  tracks_.push_back(Track(track_num, track_type, track_uid, codec_id, name,</div>
|
|
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  language, default_duration, video_pixel_width,</div>
|
|
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  video_pixel_height, audio_channels,</div>
|
|
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  audio_sampling_frequency, allow_invalid_values_));</div>
|
|
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span> }</div>
|
|
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span> </div>
|
|
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span> <span class="keywordtype">int</span> TracksBuilder::GetTracksSize()<span class="keyword"> const </span>{</div>
|
|
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <span class="keywordflow">return</span> MasterElementSize(kWebMIdTracks, GetTracksPayloadSize());</div>
|
|
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span> }</div>
|
|
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span> </div>
|
|
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span> <span class="keywordtype">int</span> TracksBuilder::GetTracksPayloadSize()<span class="keyword"> const </span>{</div>
|
|
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keywordtype">int</span> payload_size = 0;</div>
|
|
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> </div>
|
|
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="keywordflow">for</span> (TrackList::const_iterator itr = tracks_.begin();</div>
|
|
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  itr != tracks_.end(); ++itr) {</div>
|
|
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  payload_size += itr->GetSize();</div>
|
|
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  }</div>
|
|
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span> </div>
|
|
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="keywordflow">return</span> payload_size;</div>
|
|
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span> }</div>
|
|
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span> </div>
|
|
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span> <span class="keywordtype">void</span> TracksBuilder::WriteTracks(uint8_t* buf, <span class="keywordtype">int</span> buf_size)<span class="keyword"> const </span>{</div>
|
|
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  WriteMasterElement(&buf, &buf_size, kWebMIdTracks, GetTracksPayloadSize());</div>
|
|
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span> </div>
|
|
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="keywordflow">for</span> (TrackList::const_iterator itr = tracks_.begin();</div>
|
|
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  itr != tracks_.end(); ++itr) {</div>
|
|
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  itr->Write(&buf, &buf_size);</div>
|
|
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  }</div>
|
|
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span> }</div>
|
|
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span> </div>
|
|
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span> TracksBuilder::Track::Track(<span class="keywordtype">int</span> track_num,</div>
|
|
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="keywordtype">int</span> track_type,</div>
|
|
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  uint64_t track_uid,</div>
|
|
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="keyword">const</span> std::string& codec_id,</div>
|
|
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="keyword">const</span> std::string& name,</div>
|
|
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <span class="keyword">const</span> std::string& language,</div>
|
|
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="keywordtype">int</span> default_duration,</div>
|
|
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="keywordtype">int</span> video_pixel_width,</div>
|
|
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <span class="keywordtype">int</span> video_pixel_height,</div>
|
|
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <span class="keywordtype">int</span> audio_channels,</div>
|
|
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="keywordtype">double</span> audio_sampling_frequency,</div>
|
|
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="keywordtype">bool</span> allow_invalid_values)</div>
|
|
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  : track_num_(track_num),</div>
|
|
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  track_type_(track_type),</div>
|
|
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  track_uid_(track_uid),</div>
|
|
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  codec_id_(codec_id),</div>
|
|
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  name_(name),</div>
|
|
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  language_(language),</div>
|
|
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  default_duration_(default_duration),</div>
|
|
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  video_pixel_width_(video_pixel_width),</div>
|
|
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  video_pixel_height_(video_pixel_height),</div>
|
|
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  audio_channels_(audio_channels),</div>
|
|
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  audio_sampling_frequency_(audio_sampling_frequency) {</div>
|
|
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  <span class="keywordflow">if</span> (!allow_invalid_values) {</div>
|
|
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  CHECK_GT(track_num_, 0);</div>
|
|
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  CHECK_GT(track_type_, 0);</div>
|
|
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  CHECK_LT(track_type_, 255);</div>
|
|
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  CHECK_GT(track_uid_, 0);</div>
|
|
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  <span class="keywordflow">if</span> (track_type != kWebMTrackTypeVideo &&</div>
|
|
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  track_type != kWebMTrackTypeAudio) {</div>
|
|
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  CHECK_EQ(default_duration_, -1);</div>
|
|
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  CHECK(default_duration_ == -1 || default_duration_ > 0);</div>
|
|
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  }</div>
|
|
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span> </div>
|
|
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <span class="keywordflow">if</span> (track_type == kWebMTrackTypeVideo) {</div>
|
|
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  CHECK_GT(video_pixel_width_, 0);</div>
|
|
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  CHECK_GT(video_pixel_height_, 0);</div>
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|
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  CHECK_EQ(video_pixel_width_, -1);</div>
|
|
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  CHECK_EQ(video_pixel_height_, -1);</div>
|
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<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  }</div>
|
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<div class="line"><a name="l00286"></a><span class="lineno"> 286</span> </div>
|
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<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <span class="keywordflow">if</span> (track_type == kWebMTrackTypeAudio) {</div>
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|
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  CHECK_GT(audio_channels_, 0);</div>
|
|
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  CHECK_GT(audio_sampling_frequency_, 0.0);</div>
|
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<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  CHECK_EQ(audio_channels_, -1);</div>
|
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<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  CHECK_EQ(audio_sampling_frequency_, -1.0);</div>
|
|
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  }</div>
|
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<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  }</div>
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<div class="line"><a name="l00295"></a><span class="lineno"> 295</span> }</div>
|
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<div class="line"><a name="l00296"></a><span class="lineno"> 296</span> </div>
|
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<div class="line"><a name="l00297"></a><span class="lineno"> 297</span> <span class="keywordtype">int</span> TracksBuilder::Track::GetSize()<span class="keyword"> const </span>{</div>
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|
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  <span class="keywordflow">return</span> MasterElementSize(kWebMIdTrackEntry, GetPayloadSize());</div>
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|
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span> }</div>
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<div class="line"><a name="l00300"></a><span class="lineno"> 300</span> </div>
|
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<div class="line"><a name="l00301"></a><span class="lineno"> 301</span> <span class="keywordtype">int</span> TracksBuilder::Track::GetVideoPayloadSize()<span class="keyword"> const </span>{</div>
|
|
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  <span class="keywordtype">int</span> payload_size = 0;</div>
|
|
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span> </div>
|
|
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  <span class="keywordflow">if</span> (video_pixel_width_ >= 0)</div>
|
|
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  payload_size += UIntElementSize(kWebMIdPixelWidth, video_pixel_width_);</div>
|
|
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  <span class="keywordflow">if</span> (video_pixel_height_ >= 0)</div>
|
|
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  payload_size += UIntElementSize(kWebMIdPixelHeight, video_pixel_height_);</div>
|
|
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span> </div>
|
|
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <span class="keywordflow">return</span> payload_size;</div>
|
|
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span> }</div>
|
|
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span> </div>
|
|
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span> <span class="keywordtype">int</span> TracksBuilder::Track::GetAudioPayloadSize()<span class="keyword"> const </span>{</div>
|
|
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  <span class="keywordtype">int</span> payload_size = 0;</div>
|
|
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span> </div>
|
|
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="keywordflow">if</span> (audio_channels_ >= 0)</div>
|
|
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  payload_size += UIntElementSize(kWebMIdChannels, audio_channels_);</div>
|
|
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="keywordflow">if</span> (audio_sampling_frequency_ >= 0)</div>
|
|
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  payload_size += DoubleElementSize(kWebMIdSamplingFrequency);</div>
|
|
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span> </div>
|
|
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="keywordflow">return</span> payload_size;</div>
|
|
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span> }</div>
|
|
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span> </div>
|
|
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span> <span class="keywordtype">int</span> TracksBuilder::Track::GetPayloadSize()<span class="keyword"> const </span>{</div>
|
|
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="keywordtype">int</span> size = 0;</div>
|
|
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span> </div>
|
|
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  size += UIntElementSize(kWebMIdTrackNumber, track_num_);</div>
|
|
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  size += UIntElementSize(kWebMIdTrackType, track_type_);</div>
|
|
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  size += UIntElementSize(kWebMIdTrackUID, track_uid_);</div>
|
|
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span> </div>
|
|
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <span class="keywordflow">if</span> (default_duration_ >= 0)</div>
|
|
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  size += UIntElementSize(kWebMIdDefaultDuration, default_duration_);</div>
|
|
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span> </div>
|
|
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <span class="keywordflow">if</span> (!codec_id_.empty())</div>
|
|
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  size += StringElementSize(kWebMIdCodecID, codec_id_);</div>
|
|
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span> </div>
|
|
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <span class="keywordflow">if</span> (!name_.empty())</div>
|
|
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  size += StringElementSize(kWebMIdName, name_);</div>
|
|
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span> </div>
|
|
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  <span class="keywordflow">if</span> (!language_.empty())</div>
|
|
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  size += StringElementSize(kWebMIdLanguage, language_);</div>
|
|
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span> </div>
|
|
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  <span class="keywordflow">if</span> (GetVideoPayloadSize() > 0) {</div>
|
|
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  size += MasterElementSize(kWebMIdVideo, GetVideoPayloadSize());</div>
|
|
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  }</div>
|
|
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span> </div>
|
|
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  <span class="keywordflow">if</span> (GetAudioPayloadSize() > 0) {</div>
|
|
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  size += MasterElementSize(kWebMIdAudio, GetAudioPayloadSize());</div>
|
|
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  }</div>
|
|
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span> </div>
|
|
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <span class="keywordflow">return</span> size;</div>
|
|
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span> }</div>
|
|
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span> </div>
|
|
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span> <span class="keywordtype">void</span> TracksBuilder::Track::Write(uint8_t** buf, <span class="keywordtype">int</span>* buf_size)<span class="keyword"> const </span>{</div>
|
|
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  WriteMasterElement(buf, buf_size, kWebMIdTrackEntry, GetPayloadSize());</div>
|
|
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span> </div>
|
|
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  WriteUIntElement(buf, buf_size, kWebMIdTrackNumber, track_num_);</div>
|
|
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  WriteUIntElement(buf, buf_size, kWebMIdTrackType, track_type_);</div>
|
|
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  WriteUIntElement(buf, buf_size, kWebMIdTrackUID, track_uid_);</div>
|
|
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span> </div>
|
|
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <span class="keywordflow">if</span> (default_duration_ >= 0)</div>
|
|
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  WriteUIntElement(buf, buf_size, kWebMIdDefaultDuration, default_duration_);</div>
|
|
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span> </div>
|
|
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  <span class="keywordflow">if</span> (!codec_id_.empty())</div>
|
|
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  WriteStringElement(buf, buf_size, kWebMIdCodecID, codec_id_);</div>
|
|
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span> </div>
|
|
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  <span class="keywordflow">if</span> (!name_.empty())</div>
|
|
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  WriteStringElement(buf, buf_size, kWebMIdName, name_);</div>
|
|
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span> </div>
|
|
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <span class="keywordflow">if</span> (!language_.empty())</div>
|
|
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  WriteStringElement(buf, buf_size, kWebMIdLanguage, language_);</div>
|
|
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span> </div>
|
|
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  <span class="keywordflow">if</span> (GetVideoPayloadSize() > 0) {</div>
|
|
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  WriteMasterElement(buf, buf_size, kWebMIdVideo, GetVideoPayloadSize());</div>
|
|
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span> </div>
|
|
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  <span class="keywordflow">if</span> (video_pixel_width_ >= 0)</div>
|
|
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  WriteUIntElement(buf, buf_size, kWebMIdPixelWidth, video_pixel_width_);</div>
|
|
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span> </div>
|
|
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  <span class="keywordflow">if</span> (video_pixel_height_ >= 0)</div>
|
|
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  WriteUIntElement(buf, buf_size, kWebMIdPixelHeight, video_pixel_height_);</div>
|
|
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  }</div>
|
|
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span> </div>
|
|
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  <span class="keywordflow">if</span> (GetAudioPayloadSize() > 0) {</div>
|
|
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  WriteMasterElement(buf, buf_size, kWebMIdAudio, GetAudioPayloadSize());</div>
|
|
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span> </div>
|
|
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  <span class="keywordflow">if</span> (audio_channels_ >= 0)</div>
|
|
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  WriteUIntElement(buf, buf_size, kWebMIdChannels, audio_channels_);</div>
|
|
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span> </div>
|
|
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  <span class="keywordflow">if</span> (audio_sampling_frequency_ >= 0) {</div>
|
|
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  WriteDoubleElement(buf, buf_size, kWebMIdSamplingFrequency,</div>
|
|
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  audio_sampling_frequency_);</div>
|
|
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  }</div>
|
|
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  }</div>
|
|
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span> }</div>
|
|
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span> </div>
|
|
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span> } <span class="comment">// namespace media</span></div>
|
|
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span> } <span class="comment">// namespace shaka</span></div>
|
|
</div><!-- fragment --></div><!-- contents -->
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