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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Copyright 2020 Google LLC. All rights reserved.</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Use of this source code is governed by a BSD-style</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// license that can be found in the LICENSE file or at</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// https://developers.google.com/open-source/licenses/bsd</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>  </div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#include "packager/media/formats/dvb/dvb_image.h"</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>  </div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#include <algorithm></span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include <cstring></span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include <tuple></span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>  </div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include "packager/base/logging.h"</span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>  </div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="keyword">namespace </span><a class="code" href="../../d8/daf/namespaceshaka.html">shaka</a> {</div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="keyword">namespace </span>media {</div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>  </div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="keyword">namespace </span>{</div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  </div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment">// See ETSI EN 300 743 Section 9.1.</span></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> constexpr <span class="keyword">const</span> uint8_t k4To2ReductionMap[] = {</div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  0x0, 0x1, 0x1, 0x1, 0x1, 0x1, 0x1, 0x1,</div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  0x2, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3,</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> };</div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  </div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment">// The only time when A==0 is when it is transparent. This means we can use</span></div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment">// other values internally for special values.</span></div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> constexpr <span class="keyword">const</span> RgbaColor kNoColor{145, 92, 47, 0};</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> <span class="comment">// DVB uses transparency, but libpng uses alpha, so we need to reverse the T</span></div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment">// value so we can pass the value to libpng.</span></div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#define COLOR(r, g, b, t) \</span></div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor"> RgbaColor { \</span></div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor"> static_cast<uint8_t>(255 * (r) / 100), \</span></div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor"> static_cast<uint8_t>(255 * (g) / 100), \</span></div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor"> static_cast<uint8_t>(255 * (b) / 100), \</span></div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor"> static_cast<uint8_t>(255 * (100 - t) / 100) \</span></div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor"> }</span></div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment">// Default color maps see ETSI EN 300 743 Section 10.</span></div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> constexpr <span class="keyword">const</span> RgbaColor k2BitDefaultColors[] = {</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  COLOR(0, 0, 0, 100), <span class="comment">// 0 = 0b00</span></div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  COLOR(100, 100, 100, 0), <span class="comment">// 1 = 0b01</span></div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  COLOR(0, 0, 0, 0), <span class="comment">// 2 = 0b10</span></div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  COLOR(50, 50, 50, 0), <span class="comment">// 3 = 0b11</span></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> <span class="comment">// Default color maps see ETSI EN 300 743 Section 10.</span></div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> constexpr <span class="keyword">const</span> RgbaColor k4BitDefaultColors[] = {</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  COLOR(0, 0, 0, 100), <span class="comment">// 0 = 0b0000</span></div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  COLOR(100, 0, 0, 0), <span class="comment">// 1 = 0b0001</span></div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  COLOR(0, 100, 0, 0), <span class="comment">// 2 = 0b0010</span></div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  COLOR(100, 100, 0, 0), <span class="comment">// 3 = 0b0011</span></div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  COLOR(0, 0, 100, 0), <span class="comment">// 4 = 0b0100</span></div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  COLOR(100, 0, 100, 0), <span class="comment">// 5 = 0b0101</span></div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  COLOR(0, 100, 100, 0), <span class="comment">// 6 = 0b0110</span></div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  COLOR(100, 100, 100, 0), <span class="comment">// 7 = 0b0111</span></div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  </div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  COLOR(0, 0, 0, 0), <span class="comment">// 8 = 0b1000</span></div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  COLOR(50, 0, 0, 0), <span class="comment">// 9 = 0b1001</span></div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  COLOR(0, 50, 0, 0), <span class="comment">// 10 = 0b1010</span></div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  COLOR(50, 50, 0, 0), <span class="comment">// 11 = 0b1011</span></div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  COLOR(0, 0, 50, 0), <span class="comment">// 12 = 0b1100</span></div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  COLOR(50, 0, 50, 0), <span class="comment">// 13 = 0b1101</span></div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  COLOR(0, 50, 50, 0), <span class="comment">// 14 = 0b1110</span></div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  COLOR(50, 50, 50, 0), <span class="comment">// 15 = 0b1111</span></div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> };</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  </div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="preprocessor">#define GET_BIT(n) ((entry_id >> (8 - (n))) & 0x1)</span></div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="comment">// Default color maps see ETSI EN 300 743 Section 10.</span></div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> RgbaColor Get8BitDefaultColor(uint8_t entry_id) {</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  uint8_t r, g, b, t;</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordflow">if</span> (entry_id == 0) {</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordflow">return</span> COLOR(0, 0, 0, 100);</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> ((entry_id & 0xf8) == 0) {</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  r = 100 * GET_BIT(8);</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  g = 100 * GET_BIT(7);</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  b = 100 * GET_BIT(6);</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  t = 75;</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!GET_BIT(1)) {</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  r = (33 * GET_BIT(8)) + (67 * GET_BIT(4));</div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  g = (33 * GET_BIT(7)) + (67 * GET_BIT(3));</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  b = (33 * GET_BIT(6)) + (67 * GET_BIT(2));</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  t = GET_BIT(5) ? 50 : 0;</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  r = (17 * GET_BIT(8)) + (33 * GET_BIT(4)) + (GET_BIT(5) ? 0 : 50);</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  g = (17 * GET_BIT(7)) + (33 * GET_BIT(3)) + (GET_BIT(5) ? 0 : 50);</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  b = (17 * GET_BIT(6)) + (33 * GET_BIT(2)) + (GET_BIT(5) ? 0 : 50);</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  t = 0;</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  }</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordflow">return</span> COLOR(r, g, b, t);</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="preprocessor">#undef GET_BIT</span></div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="preprocessor">#undef COLOR</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="comment">// namespace</span></div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  </div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> DvbImageColorSpace::DvbImageColorSpace() {</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span>& item : color_map_2_)</div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  item = kNoColor;</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span>& item : color_map_4_)</div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  item = kNoColor;</div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span>& item : color_map_8_)</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  item = kNoColor;</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> DvbImageColorSpace::~DvbImageColorSpace() {}</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  </div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> RgbaColor DvbImageColorSpace::GetColor(BitDepth bit_depth,</div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  uint8_t entry_id)<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keyword">auto</span> color = GetColorRaw(bit_depth, entry_id);</div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keywordflow">if</span> (color != kNoColor)</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordflow">return</span> color;</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="comment">// If we don't have the exact bit-depth, try mapping to another bit-depth.</span></div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="comment">// See ETSI EN 300 743 Section 9.</span></div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  RgbaColor default_color, alt1, alt2;</div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordflow">switch</span> (bit_depth) {</div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keywordflow">case</span> BitDepth::k2Bit:</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  DCHECK_LT(entry_id, 4u);</div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  alt1 = GetColorRaw(BitDepth::k4Bit, bit_depth_2_to_4_[entry_id]);</div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  alt2 = GetColorRaw(BitDepth::k8Bit, bit_depth_2_to_8_[entry_id]);</div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  default_color = k2BitDefaultColors[entry_id];</div>
|
|
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keywordflow">case</span> BitDepth::k4Bit:</div>
|
|
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  DCHECK_LT(entry_id, 16u);</div>
|
|
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  alt1 = GetColorRaw(BitDepth::k8Bit, bit_depth_4_to_8_[entry_id]);</div>
|
|
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  alt2 = GetColorRaw(BitDepth::k2Bit, k4To2ReductionMap[entry_id]);</div>
|
|
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  default_color = k4BitDefaultColors[entry_id];</div>
|
|
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordflow">case</span> BitDepth::k8Bit:</div>
|
|
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="comment">// 8-to-4-bit reduction is just take the low bits.</span></div>
|
|
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  alt1 = GetColorRaw(BitDepth::k4Bit, entry_id & 0xf);</div>
|
|
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  alt2 = GetColorRaw(BitDepth::k2Bit, k4To2ReductionMap[entry_id & 0xf]);</div>
|
|
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  default_color = Get8BitDefaultColor(entry_id);</div>
|
|
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keywordflow">default</span>:</div>
|
|
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="comment">// Windows can't detect that all enums are handled and doesn't like</span></div>
|
|
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="comment">// NOTREACHED.</span></div>
|
|
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keywordflow">return</span> kNoColor;</div>
|
|
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  }</div>
|
|
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  </div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keywordflow">if</span> (alt1 != kNoColor)</div>
|
|
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="keywordflow">return</span> alt1;</div>
|
|
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keywordflow">if</span> (alt2 != kNoColor)</div>
|
|
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keywordflow">return</span> alt2;</div>
|
|
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keywordflow">return</span> default_color;</div>
|
|
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> }</div>
|
|
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  </div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span> <span class="keywordtype">void</span> DvbImageColorSpace::SetColor(BitDepth bit_depth,</div>
|
|
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  uint8_t entry_id,</div>
|
|
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  RgbaColor color) {</div>
|
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  DCHECK(color != kNoColor);</div>
|
|
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keywordflow">switch</span> (bit_depth) {</div>
|
|
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keywordflow">case</span> BitDepth::k2Bit:</div>
|
|
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  DCHECK_LT(entry_id, 4u);</div>
|
|
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  color_map_2_[entry_id] = color;</div>
|
|
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keywordflow">case</span> BitDepth::k4Bit:</div>
|
|
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  DCHECK_LT(entry_id, 16u);</div>
|
|
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  color_map_4_[entry_id] = color;</div>
|
|
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keywordflow">case</span> BitDepth::k8Bit:</div>
|
|
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  color_map_8_[entry_id] = color;</div>
|
|
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  }</div>
|
|
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> }</div>
|
|
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  </div>
|
|
<div class="line"><a name="l00167"></a><span class="lineno"><a class="line" href="../../d8/db4/classshaka_1_1media_1_1DvbImageColorSpace.html#afc8aacea2caeed42592db778482d9db7"> 167</a></span> <span class="keywordtype">void</span> <a class="code" href="../../d8/db4/classshaka_1_1media_1_1DvbImageColorSpace.html#afc8aacea2caeed42592db778482d9db7">DvbImageColorSpace::Set2To4BitDepthMap</a>(<span class="keyword">const</span> uint8_t* map) {</div>
|
|
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  memcpy(bit_depth_2_to_4_, map, <span class="keyword">sizeof</span>(bit_depth_2_to_4_));</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>  </div>
|
|
<div class="line"><a name="l00171"></a><span class="lineno"><a class="line" href="../../d8/db4/classshaka_1_1media_1_1DvbImageColorSpace.html#a8731ee55d7b47980541b78783477c01c"> 171</a></span> <span class="keywordtype">void</span> <a class="code" href="../../d8/db4/classshaka_1_1media_1_1DvbImageColorSpace.html#a8731ee55d7b47980541b78783477c01c">DvbImageColorSpace::Set2To8BitDepthMap</a>(<span class="keyword">const</span> uint8_t* map) {</div>
|
|
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  memcpy(bit_depth_2_to_8_, map, <span class="keyword">sizeof</span>(bit_depth_2_to_8_));</div>
|
|
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span> }</div>
|
|
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  </div>
|
|
<div class="line"><a name="l00175"></a><span class="lineno"><a class="line" href="../../d8/db4/classshaka_1_1media_1_1DvbImageColorSpace.html#a49ca0b16ffc9d5cc6e3c8daa03bea8c7"> 175</a></span> <span class="keywordtype">void</span> <a class="code" href="../../d8/db4/classshaka_1_1media_1_1DvbImageColorSpace.html#a49ca0b16ffc9d5cc6e3c8daa03bea8c7">DvbImageColorSpace::Set4To8BitDepthMap</a>(<span class="keyword">const</span> uint8_t* map) {</div>
|
|
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  memcpy(bit_depth_4_to_8_, map, <span class="keyword">sizeof</span>(bit_depth_4_to_8_));</div>
|
|
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span> }</div>
|
|
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  </div>
|
|
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span> <a class="code" href="../../d4/dfa/structshaka_1_1media_1_1RgbaColor.html">RgbaColor</a> DvbImageColorSpace::GetColorRaw(BitDepth bit_depth,</div>
|
|
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  uint8_t entry_id)<span class="keyword"> const </span>{</div>
|
|
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keywordflow">switch</span> (bit_depth) {</div>
|
|
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keywordflow">case</span> BitDepth::k2Bit:</div>
|
|
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keywordflow">return</span> color_map_2_[entry_id];</div>
|
|
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="keywordflow">case</span> BitDepth::k4Bit:</div>
|
|
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keywordflow">return</span> color_map_4_[entry_id];</div>
|
|
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordflow">case</span> BitDepth::k8Bit:</div>
|
|
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keywordflow">return</span> color_map_8_[entry_id];</div>
|
|
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  }</div>
|
|
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="comment">// Not reached, but Windows doesn't like NOTREACHED.</span></div>
|
|
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordflow">return</span> kNoColor;</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>  </div>
|
|
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> DvbImageBuilder::DvbImageBuilder(<span class="keyword">const</span> DvbImageColorSpace* color_space,</div>
|
|
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keyword">const</span> RgbaColor& default_color,</div>
|
|
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  uint16_t max_width,</div>
|
|
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  uint16_t max_height)</div>
|
|
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  : pixels_(new RgbaColor[max_width * max_height]),</div>
|
|
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  color_space_(color_space),</div>
|
|
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  top_pos_{0, 0},</div>
|
|
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  bottom_pos_{0, 1}, <span class="comment">// Skip top row for bottom row.</span></div>
|
|
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  max_width_(max_width),</div>
|
|
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  max_height_(max_height),</div>
|
|
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  width_(0) {</div>
|
|
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < static_cast<size_t>(max_width) * max_height; i++)</div>
|
|
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  pixels_[i] = default_color;</div>
|
|
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span> }</div>
|
|
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  </div>
|
|
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span> DvbImageBuilder::~DvbImageBuilder() {}</div>
|
|
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  </div>
|
|
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span> <span class="keywordtype">bool</span> DvbImageBuilder::AddPixel(BitDepth bit_depth,</div>
|
|
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  uint8_t byte_code,</div>
|
|
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordtype">bool</span> is_top_rows) {</div>
|
|
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="keyword">auto</span>& pos = is_top_rows ? top_pos_ : bottom_pos_;</div>
|
|
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keywordflow">if</span> (pos.x >= max_width_ || pos.y >= max_height_) {</div>
|
|
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  LOG(ERROR) << <span class="stringliteral">"DVB-sub image cannot fit in region/window"</span>;</div>
|
|
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  }</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>  pixels_[pos.y * max_width_ + pos.x++] =</div>
|
|
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  color_space_->GetColor(bit_depth, byte_code);</div>
|
|
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <span class="keywordflow">if</span> (pos.x > width_)</div>
|
|
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  width_ = pos.x;</div>
|
|
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span> }</div>
|
|
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  </div>
|
|
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> <span class="keywordtype">void</span> DvbImageBuilder::NewRow(<span class="keywordtype">bool</span> is_top_rows) {</div>
|
|
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="keyword">auto</span>& pos = is_top_rows ? top_pos_ : bottom_pos_;</div>
|
|
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  pos.x = 0;</div>
|
|
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  pos.y += 2; <span class="comment">// Skip other row.</span></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"><a class="line" href="../../d9/d28/classshaka_1_1media_1_1DvbImageBuilder.html#a54dd37c2291b7b988f636527330b0d53"> 232</a></span> <span class="keywordtype">void</span> <a class="code" href="../../d9/d28/classshaka_1_1media_1_1DvbImageBuilder.html#a54dd37c2291b7b988f636527330b0d53">DvbImageBuilder::MirrorToBottomRows</a>() {</div>
|
|
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> line = 0; line < max_height_ - 1u; line += 2) {</div>
|
|
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  std::memcpy(&pixels_[(line + 1) * max_width_], &pixels_[line * max_width_],</div>
|
|
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  max_width_ * <span class="keyword">sizeof</span>(<a class="code" href="../../d4/dfa/structshaka_1_1media_1_1RgbaColor.html">RgbaColor</a>));</div>
|
|
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  }</div>
|
|
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  bottom_pos_ = top_pos_;</div>
|
|
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="keywordflow">if</span> (max_height_ % 2 == 0)</div>
|
|
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  bottom_pos_.y++;</div>
|
|
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="keywordflow">else</span></div>
|
|
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  bottom_pos_.y--; <span class="comment">// Odd-height images don't end in odd-row, so move back.</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"><a class="line" href="../../d9/d28/classshaka_1_1media_1_1DvbImageBuilder.html#a4e952ceca8ca59c293936039df49c1ef"> 244</a></span> <span class="keywordtype">bool</span> <a class="code" href="../../d9/d28/classshaka_1_1media_1_1DvbImageBuilder.html#a4e952ceca8ca59c293936039df49c1ef">DvbImageBuilder::GetPixels</a>(<span class="keyword">const</span> <a class="code" href="../../d4/dfa/structshaka_1_1media_1_1RgbaColor.html">RgbaColor</a>** pixels,</div>
|
|
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  uint16_t* width,</div>
|
|
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  uint16_t* height)<span class="keyword"> const </span>{</div>
|
|
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="keywordtype">size_t</span> max_y, min_y;</div>
|
|
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  std::tie(min_y, max_y) = std::minmax(top_pos_.y, bottom_pos_.y);</div>
|
|
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <span class="keywordflow">if</span> (max_y == 1 || max_y != min_y + 1) {</div>
|
|
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="comment">// 1. We should have at least one row.</span></div>
|
|
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="comment">// 2. Both top-rows and bottom-rows should have the same number of rows.</span></div>
|
|
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  LOG(ERROR) << <span class="stringliteral">"Incomplete DVB-sub image"</span>;</div>
|
|
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  }</div>
|
|
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  </div>
|
|
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  *width = width_;</div>
|
|
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  <span class="comment">// We skipped the other row in NewRow, so rollback.</span></div>
|
|
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  *height = <span class="keyword">static_cast<</span>uint16_t<span class="keyword">></span>(max_y - 1);</div>
|
|
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  *pixels = pixels_.get();</div>
|
|
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  <span class="keywordflow">if</span> (*height > max_height_) {</div>
|
|
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  LOG(ERROR) << <span class="stringliteral">"DVB-sub image cannot fit in region/window"</span>;</div>
|
|
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  }</div>
|
|
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  </div>
|
|
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00266"></a><span class="lineno"> 266</span> }</div>
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<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  </div>
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<div class="line"><a name="l00268"></a><span class="lineno"> 268</span> } <span class="comment">// namespace media</span></div>
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<div class="line"><a name="l00269"></a><span class="lineno"> 269</span> } <span class="comment">// namespace shaka</span></div>
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</div><!-- fragment --></div><!-- contents -->
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<div class="ttc" id="anamespaceshaka_html"><div class="ttname"><a href="../../d8/daf/namespaceshaka.html">shaka</a></div><div class="ttdoc">All the methods that are virtual are virtual for mocking.</div><div class="ttdef"><b>Definition:</b> <a href="../../d4/d15/gflags__hex__bytes_8cc_source.html#l00011">gflags_hex_bytes.cc:11</a></div></div>
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<div class="ttc" id="aclassshaka_1_1media_1_1DvbImageColorSpace_html_a49ca0b16ffc9d5cc6e3c8daa03bea8c7"><div class="ttname"><a href="../../d8/db4/classshaka_1_1media_1_1DvbImageColorSpace.html#a49ca0b16ffc9d5cc6e3c8daa03bea8c7">shaka::media::DvbImageColorSpace::Set4To8BitDepthMap</a></div><div class="ttdeci">void Set4To8BitDepthMap(const uint8_t *map)</div><div class="ttdoc">Must pass a 16-element array; elements are copied over.</div><div class="ttdef"><b>Definition:</b> <a href="../../d8/dcb/dvb__image_8cc_source.html#l00175">dvb_image.cc:175</a></div></div>
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<div class="ttc" id="astructshaka_1_1media_1_1RgbaColor_html"><div class="ttname"><a href="../../d4/dfa/structshaka_1_1media_1_1RgbaColor.html">shaka::media::RgbaColor</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d2/de1/dvb__image_8h_source.html#l00016">dvb_image.h:16</a></div></div>
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<div class="ttc" id="aclassshaka_1_1media_1_1DvbImageBuilder_html_a54dd37c2291b7b988f636527330b0d53"><div class="ttname"><a href="../../d9/d28/classshaka_1_1media_1_1DvbImageBuilder.html#a54dd37c2291b7b988f636527330b0d53">shaka::media::DvbImageBuilder::MirrorToBottomRows</a></div><div class="ttdeci">void MirrorToBottomRows()</div><div class="ttdoc">Copies the top-rows to the bottom rows.</div><div class="ttdef"><b>Definition:</b> <a href="../../d8/dcb/dvb__image_8cc_source.html#l00232">dvb_image.cc:232</a></div></div>
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<div class="ttc" id="aclassshaka_1_1media_1_1DvbImageColorSpace_html_afc8aacea2caeed42592db778482d9db7"><div class="ttname"><a href="../../d8/db4/classshaka_1_1media_1_1DvbImageColorSpace.html#afc8aacea2caeed42592db778482d9db7">shaka::media::DvbImageColorSpace::Set2To4BitDepthMap</a></div><div class="ttdeci">void Set2To4BitDepthMap(const uint8_t *map)</div><div class="ttdoc">Must pass a 4-element array; elements are copied over.</div><div class="ttdef"><b>Definition:</b> <a href="../../d8/dcb/dvb__image_8cc_source.html#l00167">dvb_image.cc:167</a></div></div>
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<div class="ttc" id="aclassshaka_1_1media_1_1DvbImageColorSpace_html_a8731ee55d7b47980541b78783477c01c"><div class="ttname"><a href="../../d8/db4/classshaka_1_1media_1_1DvbImageColorSpace.html#a8731ee55d7b47980541b78783477c01c">shaka::media::DvbImageColorSpace::Set2To8BitDepthMap</a></div><div class="ttdeci">void Set2To8BitDepthMap(const uint8_t *map)</div><div class="ttdoc">Must pass a 4-element array; elements are copied over.</div><div class="ttdef"><b>Definition:</b> <a href="../../d8/dcb/dvb__image_8cc_source.html#l00171">dvb_image.cc:171</a></div></div>
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<div class="ttc" id="aclassshaka_1_1media_1_1DvbImageBuilder_html_a4e952ceca8ca59c293936039df49c1ef"><div class="ttname"><a href="../../d9/d28/classshaka_1_1media_1_1DvbImageBuilder.html#a4e952ceca8ca59c293936039df49c1ef">shaka::media::DvbImageBuilder::GetPixels</a></div><div class="ttdeci">bool GetPixels(const RgbaColor **pixels, uint16_t *width, uint16_t *height) const</div><div class="ttdef"><b>Definition:</b> <a href="../../d8/dcb/dvb__image_8cc_source.html#l00244">dvb_image.cc:244</a></div></div>
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