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<a href="vda_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * VDA HW acceleration</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * copyright (c) 2011 Sebastien Zwickert</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * This file is part of FFmpeg.</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * FFmpeg is free software; you can redistribute it and/or</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * modify it under the terms of the GNU Lesser General Public</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * License as published by the Free Software Foundation; either</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * version 2.1 of the License, or (at your option) any later version.</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * FFmpeg is distributed in the hope that it will be useful,</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * Lesser General Public License for more details.</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * You should have received a copy of the GNU Lesser General Public</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * License along with FFmpeg; if not, write to the Free Software</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#ifndef AVCODEC_VDA_H</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor"></span><span class="preprocessor">#define AVCODEC_VDA_H</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor"></span><span class="comment"></span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment">/**</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> * @file</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment"> * @ingroup lavc_codec_hwaccel_vda</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment"> * Public libavcodec VDA header.</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> </div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include "<a class="code" href="avcodec_8h.html">libavcodec/avcodec.h</a>"</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#include <stdint.h></span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment">// emmintrin.h is unable to compile with -std=c99 -Werror=missing-prototypes</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment">// http://openradar.appspot.com/8026390</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#undef __GNUC_STDC_INLINE__</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00040"></a><span class="lineno"><a class="line" href="vda_8h.html#a63024b9f4f18a0420b1e71b49205d3ca"> 40</a></span> <span class="preprocessor">#define Picture QuickdrawPicture</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor"></span><span class="preprocessor">#include <VideoDecodeAcceleration/VDADecoder.h></span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor">#undef Picture</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor">#include "<a class="code" href="libavcodec_2version_8h.html">libavcodec/version.h</a>"</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment">// extra flags not defined in VDADecoder.h</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="keyword">enum</span> {</div>
<div class="line"><a name="l00048"></a><span class="lineno"><a class="line" href="vda_8h.html#adc29c2ff13d900c2f185ee95427fb06ca6a3d93ff5334fd34c1a863298cbc598b"> 48</a></span>  <a class="code" href="vda_8h.html#adc29c2ff13d900c2f185ee95427fb06ca6a3d93ff5334fd34c1a863298cbc598b">kVDADecodeInfo_Asynchronous</a> = 1UL << 0,</div>
<div class="line"><a name="l00049"></a><span class="lineno"><a class="line" href="vda_8h.html#adc29c2ff13d900c2f185ee95427fb06ca03ffb3954e167c29e46c07251920ecbf"> 49</a></span>  <a class="code" href="vda_8h.html#adc29c2ff13d900c2f185ee95427fb06ca03ffb3954e167c29e46c07251920ecbf">kVDADecodeInfo_FrameDropped</a> = 1UL << 1</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> };</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="comment"></span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="comment">/**</span></div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="comment"> * @defgroup lavc_codec_hwaccel_vda VDA</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="comment"> * @ingroup lavc_codec_hwaccel</span></div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment"> * @{</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="comment"></span></div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="comment">/**</span></div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="comment"> * This structure is used to provide the necessary configurations and data</span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="comment"> * to the VDA FFmpeg HWAccel implementation.</span></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="comment"> * The application must make it available as AVCodecContext.hwaccel_context.</span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00065"></a><span class="lineno"><a class="line" href="structvda__context.html"> 65</a></span> <span class="keyword">struct </span><a class="code" href="structvda__context.html">vda_context</a> {<span class="comment"></span></div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="comment"> /**</span></div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="comment"> * VDA decoder object.</span></div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="comment"> * - encoding: unused</span></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="comment"> * - decoding: Set/Unset by libavcodec.</span></div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00072"></a><span class="lineno"><a class="line" href="structvda__context.html#a760651dcebd505fd9a4cdea29db99ebf"> 72</a></span>  VDADecoder <a class="code" href="structvda__context.html#a760651dcebd505fd9a4cdea29db99ebf">decoder</a>;</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="comment"></span></div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="comment"> /**</span></div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="comment"> * The Core Video pixel buffer that contains the current image data.</span></div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="comment"> * encoding: unused</span></div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="comment"> * decoding: Set by libavcodec. Unset by user.</span></div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00080"></a><span class="lineno"><a class="line" href="structvda__context.html#af7d84ca967ed9591e45c036e7c579a6f"> 80</a></span>  CVPixelBufferRef <a class="code" href="structvda__context.html#af7d84ca967ed9591e45c036e7c579a6f">cv_buffer</a>;</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="comment"></span></div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="comment"> /**</span></div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="comment"> * Use the hardware decoder in synchronous mode.</span></div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="comment"> * encoding: unused</span></div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="comment"> * decoding: Set by user.</span></div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00088"></a><span class="lineno"><a class="line" href="structvda__context.html#a76a944387b0dfe2b1b690ff4ad9f646a"> 88</a></span>  <span class="keywordtype">int</span> <a class="code" href="structvda__context.html#a76a944387b0dfe2b1b690ff4ad9f646a">use_sync_decoding</a>;</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="comment"></span></div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="comment"> /**</span></div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="comment"> * The frame width.</span></div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="comment"> * - encoding: unused</span></div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="comment"> * - decoding: Set/Unset by user.</span></div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00096"></a><span class="lineno"><a class="line" href="structvda__context.html#a1f8c3055063a3492f0066766930fbce9"> 96</a></span>  <span class="keywordtype">int</span> <a class="code" href="structvda__context.html#a1f8c3055063a3492f0066766930fbce9">width</a>;</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="comment"></span></div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="comment"> /**</span></div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="comment"> * The frame height.</span></div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="comment"> * - encoding: unused</span></div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="comment"> * - decoding: Set/Unset by user.</span></div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00104"></a><span class="lineno"><a class="line" href="structvda__context.html#aa404ef10a896b154cd41829be525d0e3"> 104</a></span>  <span class="keywordtype">int</span> <a class="code" href="structvda__context.html#aa404ef10a896b154cd41829be525d0e3">height</a>;</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="comment"></span></div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="comment"> /**</span></div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="comment"> * The frame format.</span></div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span> <span class="comment"> * - encoding: unused</span></div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="comment"> * - decoding: Set/Unset by user.</span></div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00112"></a><span class="lineno"><a class="line" href="structvda__context.html#a0ea444e176f930513b19de5e0468ab0f"> 112</a></span>  <span class="keywordtype">int</span> <a class="code" href="structvda__context.html#a0ea444e176f930513b19de5e0468ab0f">format</a>;</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="comment"></span></div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="comment"> /**</span></div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="comment"> * The pixel format for output image buffers.</span></div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="comment"> * - encoding: unused</span></div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> <span class="comment"> * - decoding: Set/Unset by user.</span></div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00120"></a><span class="lineno"><a class="line" href="structvda__context.html#aceddeda581e0e4757ca20bff6fa75883"> 120</a></span>  OSType <a class="code" href="structvda__context.html#aceddeda581e0e4757ca20bff6fa75883">cv_pix_fmt_type</a>;</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> <span class="comment"></span></div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="comment"> /**</span></div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="comment"> * unused</span></div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00125"></a><span class="lineno"><a class="line" href="structvda__context.html#a46bbc8f32ea0b46e98e04bfa3a15a141"> 125</a></span>  uint8_t *<a class="code" href="structvda__context.html#a46bbc8f32ea0b46e98e04bfa3a15a141">priv_bitstream</a>;</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="comment"></span></div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="comment"> /**</span></div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="comment"> * unused</span></div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00130"></a><span class="lineno"><a class="line" href="structvda__context.html#a625ea817b807502f9fbf764c882b1bf7"> 130</a></span>  <span class="keywordtype">int</span> <a class="code" href="structvda__context.html#a625ea817b807502f9fbf764c882b1bf7">priv_bitstream_size</a>;</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span> <span class="comment"></span></div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span> <span class="comment"> /**</span></div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> <span class="comment"> * unused</span></div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00135"></a><span class="lineno"><a class="line" href="structvda__context.html#a4c3ea7e9a9286d2579f41915337fe229"> 135</a></span>  <span class="keywordtype">int</span> <a class="code" href="structvda__context.html#a4c3ea7e9a9286d2579f41915337fe229">priv_allocated_size</a>;</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> <span class="comment"></span></div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="comment"> /**</span></div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> <span class="comment"> * Use av_buffer to manage buffer.</span></div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="comment"> * When the flag is set, the CVPixelBuffers returned by the decoder will</span></div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="comment"> * be released automatically, so you have to retain them if necessary.</span></div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span> <span class="comment"> * Not setting this flag may cause memory leak.</span></div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> <span class="comment"> * encoding: unused</span></div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span> <span class="comment"> * decoding: Set by user.</span></div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00146"></a><span class="lineno"><a class="line" href="structvda__context.html#a59cd6ad473ff9041df27a7fd92dd6b5d"> 146</a></span>  <span class="keywordtype">int</span> <a class="code" href="structvda__context.html#a59cd6ad473ff9041df27a7fd92dd6b5d">use_ref_buffer</a>;</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> };</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span> <span class="comment"></span></div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span> <span class="comment">/** Create the video decoder. */</span></div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> <span class="keywordtype">int</span> <a class="code" href="group__lavc__codec__hwaccel__vda.html#gac1efc3b9787748648228c97845fc4c52">ff_vda_create_decoder</a>(<span class="keyword">struct</span> <a class="code" href="structvda__context.html">vda_context</a> *vda_ctx,</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  uint8_t *extradata,</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keywordtype">int</span> extradata_size);</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span> <span class="comment"></span></div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span> <span class="comment">/** Destroy the video decoder. */</span></div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> <span class="keywordtype">int</span> <a class="code" href="group__lavc__codec__hwaccel__vda.html#ga032d202aa5c1eea108b6305670bc3322">ff_vda_destroy_decoder</a>(<span class="keyword">struct</span> <a class="code" href="structvda__context.html">vda_context</a> *vda_ctx);</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span> <span class="comment"></span></div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span> <span class="comment">/**</span></div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span> <span class="comment"> * This struct holds all the information that needs to be passed</span></div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span> <span class="comment"> * between the caller and libavcodec for initializing VDA decoding.</span></div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span> <span class="comment"> * Its size is not a part of the public ABI, it must be allocated with</span></div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span> <span class="comment"> * av_vda_alloc_context() and freed with av_free().</span></div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00163"></a><span class="lineno"><a class="line" href="structAVVDAContext.html"> 163</a></span> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="structAVVDAContext.html">AVVDAContext</a> {<span class="comment"></span></div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> <span class="comment"> /**</span></div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> <span class="comment"> * VDA decoder object. Created and freed by the caller.</span></div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00167"></a><span class="lineno"><a class="line" href="structAVVDAContext.html#a49170ce635bd3e9920c7b16e1cfc2949"> 167</a></span>  VDADecoder <a class="code" href="structAVVDAContext.html#a49170ce635bd3e9920c7b16e1cfc2949">decoder</a>;</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> <span class="comment"></span></div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> <span class="comment"> /**</span></div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span> <span class="comment"> * The output callback that must be passed to VDADecoderCreate.</span></div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> <span class="comment"> * Set by av_vda_alloc_context().</span></div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00173"></a><span class="lineno"><a class="line" href="structAVVDAContext.html#ada9b5570a8479ed382a2055eafffebe4"> 173</a></span>  VDADecoderOutputCallback <a class="code" href="structAVVDAContext.html#ada9b5570a8479ed382a2055eafffebe4">output_callback</a>;</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span> <span class="comment"></span></div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span> <span class="comment"> /**</span></div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span> <span class="comment"> * CVPixelBuffer Format Type that VDA will use for decoded frames; set by</span></div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span> <span class="comment"> * the caller.</span></div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00179"></a><span class="lineno"><a class="line" href="structAVVDAContext.html#aa2b792a9af32234b5c10f114ae777698"> 179</a></span>  OSType <a class="code" href="structAVVDAContext.html#aa2b792a9af32234b5c10f114ae777698">cv_pix_fmt_type</a>;</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span> } <a class="code" href="structAVVDAContext.html">AVVDAContext</a>;</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span> <span class="comment"></span></div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span> <span class="comment">/**</span></div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span> <span class="comment"> * Allocate and initialize a VDA context.</span></div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span> <span class="comment"> * This function should be called from the get_format() callback when the caller</span></div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> <span class="comment"> * selects the AV_PIX_FMT_VDA format. The caller must then create the decoder</span></div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span> <span class="comment"> * object (using the output callback provided by libavcodec) that will be used</span></div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span> <span class="comment"> * for VDA-accelerated decoding.</span></div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span> <span class="comment"> * When decoding with VDA is finished, the caller must destroy the decoder</span></div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span> <span class="comment"> * object and free the VDA context using av_free().</span></div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> <span class="comment"> * @return the newly allocated context or NULL on failure</span></div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span> <a class="code" href="structAVVDAContext.html">AVVDAContext</a> *<a class="code" href="group__lavc__codec__hwaccel__vda.html#ga406d1f99d8c74fbeb2bb6992817d02b3">av_vda_alloc_context</a>(<span class="keywordtype">void</span>);</div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span> <span class="comment"></span></div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span> <span class="comment">/**</span></div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span> <span class="comment"> * This is a convenience function that creates and sets up the VDA context using</span></div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span> <span class="comment"> * an internal implementation.</span></div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span> <span class="comment"> * @param avctx the corresponding codec context</span></div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span> <span class="comment"> * @return >= 0 on success, a negative AVERROR code on failure</span></div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span> <span class="keywordtype">int</span> <a class="code" href="group__lavc__codec__hwaccel__vda.html#ga50f5cd66fd40a76ffb1d419475c04cd4">av_vda_default_init</a>(<a class="code" href="structAVCodecContext.html">AVCodecContext</a> *avctx);</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span> <span class="comment"></span></div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span> <span class="comment">/**</span></div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span> <span class="comment"> * This is a convenience function that creates and sets up the VDA context using</span></div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span> <span class="comment"> * an internal implementation.</span></div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span> <span class="comment"> * @param avctx the corresponding codec context</span></div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span> <span class="comment"> * @param vdactx the VDA context to use</span></div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span> <span class="comment"> * @return >= 0 on success, a negative AVERROR code on failure</span></div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> <span class="keywordtype">int</span> <a class="code" href="group__lavc__codec__hwaccel__vda.html#ga6df74ab297f8ed873d7d06f75736fb6e">av_vda_default_init2</a>(<a class="code" href="structAVCodecContext.html">AVCodecContext</a> *avctx, <a class="code" href="structAVVDAContext.html">AVVDAContext</a> *vdactx);</div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span> <span class="comment"></span></div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span> <span class="comment">/**</span></div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span> <span class="comment"> * This function must be called to free the VDA context initialized with</span></div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span> <span class="comment"> * av_vda_default_init().</span></div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span> <span class="comment"> * @param avctx the corresponding codec context</span></div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span> <span class="keywordtype">void</span> <a class="code" href="group__lavc__codec__hwaccel__vda.html#ga322e94626395443ebb900e4034ec5096">av_vda_default_free</a>(<a class="code" href="structAVCodecContext.html">AVCodecContext</a> *avctx);</div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span> <span class="comment"></span></div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> <span class="comment">/**</span></div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span> <span class="comment"> * @}</span></div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span> </div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span> <span class="preprocessor">#endif </span><span class="comment">/* AVCODEC_VDA_H */</span><span class="preprocessor"></span></div>
<div class="ttc" id="group__lavc__codec__hwaccel__vda_html_ga6df74ab297f8ed873d7d06f75736fb6e"><div class="ttname"><a href="group__lavc__codec__hwaccel__vda.html#ga6df74ab297f8ed873d7d06f75736fb6e">av_vda_default_init2</a></div><div class="ttdeci">int av_vda_default_init2(AVCodecContext *avctx, AVVDAContext *vdactx)</div><div class="ttdoc">This is a convenience function that creates and sets up the VDA context using an internal implementat...</div></div>
<div class="ttc" id="group__lavc__codec__hwaccel__vda_html_ga322e94626395443ebb900e4034ec5096"><div class="ttname"><a href="group__lavc__codec__hwaccel__vda.html#ga322e94626395443ebb900e4034ec5096">av_vda_default_free</a></div><div class="ttdeci">void av_vda_default_free(AVCodecContext *avctx)</div><div class="ttdoc">This function must be called to free the VDA context initialized with av_vda_default_init(). </div></div>
<div class="ttc" id="structvda__context_html_a0ea444e176f930513b19de5e0468ab0f"><div class="ttname"><a href="structvda__context.html#a0ea444e176f930513b19de5e0468ab0f">vda_context::format</a></div><div class="ttdeci">int format</div><div class="ttdoc">The frame format. </div><div class="ttdef"><b>Definition:</b> <a href="vda_8h_source.html#l00112">vda.h:112</a></div></div>
<div class="ttc" id="vda_8h_html_adc29c2ff13d900c2f185ee95427fb06ca03ffb3954e167c29e46c07251920ecbf"><div class="ttname"><a href="vda_8h.html#adc29c2ff13d900c2f185ee95427fb06ca03ffb3954e167c29e46c07251920ecbf">kVDADecodeInfo_FrameDropped</a></div><div class="ttdef"><b>Definition:</b> <a href="vda_8h_source.html#l00049">vda.h:49</a></div></div>
<div class="ttc" id="structvda__context_html_aceddeda581e0e4757ca20bff6fa75883"><div class="ttname"><a href="structvda__context.html#aceddeda581e0e4757ca20bff6fa75883">vda_context::cv_pix_fmt_type</a></div><div class="ttdeci">OSType cv_pix_fmt_type</div><div class="ttdoc">The pixel format for output image buffers. </div><div class="ttdef"><b>Definition:</b> <a href="vda_8h_source.html#l00120">vda.h:120</a></div></div>
<div class="ttc" id="structAVVDAContext_html"><div class="ttname"><a href="structAVVDAContext.html">AVVDAContext</a></div><div class="ttdoc">This struct holds all the information that needs to be passed between the caller and libavcodec for i...</div><div class="ttdef"><b>Definition:</b> <a href="vda_8h_source.html#l00163">vda.h:163</a></div></div>
<div class="ttc" id="structvda__context_html_a59cd6ad473ff9041df27a7fd92dd6b5d"><div class="ttname"><a href="structvda__context.html#a59cd6ad473ff9041df27a7fd92dd6b5d">vda_context::use_ref_buffer</a></div><div class="ttdeci">int use_ref_buffer</div><div class="ttdoc">Use av_buffer to manage buffer. </div><div class="ttdef"><b>Definition:</b> <a href="vda_8h_source.html#l00146">vda.h:146</a></div></div>
<div class="ttc" id="structAVVDAContext_html_aa2b792a9af32234b5c10f114ae777698"><div class="ttname"><a href="structAVVDAContext.html#aa2b792a9af32234b5c10f114ae777698">AVVDAContext::cv_pix_fmt_type</a></div><div class="ttdeci">OSType cv_pix_fmt_type</div><div class="ttdoc">CVPixelBuffer Format Type that VDA will use for decoded frames; set by the caller. </div><div class="ttdef"><b>Definition:</b> <a href="vda_8h_source.html#l00179">vda.h:179</a></div></div>
<div class="ttc" id="structvda__context_html_a1f8c3055063a3492f0066766930fbce9"><div class="ttname"><a href="structvda__context.html#a1f8c3055063a3492f0066766930fbce9">vda_context::width</a></div><div class="ttdeci">int width</div><div class="ttdoc">The frame width. </div><div class="ttdef"><b>Definition:</b> <a href="vda_8h_source.html#l00096">vda.h:96</a></div></div>
<div class="ttc" id="group__lavc__codec__hwaccel__vda_html_ga50f5cd66fd40a76ffb1d419475c04cd4"><div class="ttname"><a href="group__lavc__codec__hwaccel__vda.html#ga50f5cd66fd40a76ffb1d419475c04cd4">av_vda_default_init</a></div><div class="ttdeci">int av_vda_default_init(AVCodecContext *avctx)</div><div class="ttdoc">This is a convenience function that creates and sets up the VDA context using an internal implementat...</div></div>
<div class="ttc" id="structvda__context_html_af7d84ca967ed9591e45c036e7c579a6f"><div class="ttname"><a href="structvda__context.html#af7d84ca967ed9591e45c036e7c579a6f">vda_context::cv_buffer</a></div><div class="ttdeci">CVPixelBufferRef cv_buffer</div><div class="ttdoc">The Core Video pixel buffer that contains the current image data. </div><div class="ttdef"><b>Definition:</b> <a href="vda_8h_source.html#l00080">vda.h:80</a></div></div>
<div class="ttc" id="libavcodec_2version_8h_html"><div class="ttname"><a href="libavcodec_2version_8h.html">version.h</a></div><div class="ttdoc">Libavcodec version macros. </div></div>
<div class="ttc" id="structvda__context_html_a760651dcebd505fd9a4cdea29db99ebf"><div class="ttname"><a href="structvda__context.html#a760651dcebd505fd9a4cdea29db99ebf">vda_context::decoder</a></div><div class="ttdeci">VDADecoder decoder</div><div class="ttdoc">VDA decoder object. </div><div class="ttdef"><b>Definition:</b> <a href="vda_8h_source.html#l00072">vda.h:72</a></div></div>
<div class="ttc" id="structvda__context_html"><div class="ttname"><a href="structvda__context.html">vda_context</a></div><div class="ttdoc">This structure is used to provide the necessary configurations and data to the VDA FFmpeg HWAccel imp...</div><div class="ttdef"><b>Definition:</b> <a href="vda_8h_source.html#l00065">vda.h:65</a></div></div>
<div class="ttc" id="structAVVDAContext_html_a49170ce635bd3e9920c7b16e1cfc2949"><div class="ttname"><a href="structAVVDAContext.html#a49170ce635bd3e9920c7b16e1cfc2949">AVVDAContext::decoder</a></div><div class="ttdeci">VDADecoder decoder</div><div class="ttdoc">VDA decoder object. </div><div class="ttdef"><b>Definition:</b> <a href="vda_8h_source.html#l00167">vda.h:167</a></div></div>
<div class="ttc" id="avcodec_8h_html"><div class="ttname"><a href="avcodec_8h.html">avcodec.h</a></div><div class="ttdoc">Libavcodec external API header. </div></div>
<div class="ttc" id="structAVVDAContext_html_ada9b5570a8479ed382a2055eafffebe4"><div class="ttname"><a href="structAVVDAContext.html#ada9b5570a8479ed382a2055eafffebe4">AVVDAContext::output_callback</a></div><div class="ttdeci">VDADecoderOutputCallback output_callback</div><div class="ttdoc">The output callback that must be passed to VDADecoderCreate. </div><div class="ttdef"><b>Definition:</b> <a href="vda_8h_source.html#l00173">vda.h:173</a></div></div>
<div class="ttc" id="group__lavc__codec__hwaccel__vda_html_ga032d202aa5c1eea108b6305670bc3322"><div class="ttname"><a href="group__lavc__codec__hwaccel__vda.html#ga032d202aa5c1eea108b6305670bc3322">ff_vda_destroy_decoder</a></div><div class="ttdeci">int ff_vda_destroy_decoder(struct vda_context *vda_ctx)</div><div class="ttdoc">Destroy the video decoder. </div></div>
<div class="ttc" id="structAVCodecContext_html"><div class="ttname"><a href="structAVCodecContext.html">AVCodecContext</a></div><div class="ttdoc">main external API structure. </div><div class="ttdef"><b>Definition:</b> <a href="avcodec_8h_source.html#l01532">avcodec.h:1532</a></div></div>
<div class="ttc" id="vda_8h_html_adc29c2ff13d900c2f185ee95427fb06ca6a3d93ff5334fd34c1a863298cbc598b"><div class="ttname"><a href="vda_8h.html#adc29c2ff13d900c2f185ee95427fb06ca6a3d93ff5334fd34c1a863298cbc598b">kVDADecodeInfo_Asynchronous</a></div><div class="ttdef"><b>Definition:</b> <a href="vda_8h_source.html#l00048">vda.h:48</a></div></div>
<div class="ttc" id="structvda__context_html_a76a944387b0dfe2b1b690ff4ad9f646a"><div class="ttname"><a href="structvda__context.html#a76a944387b0dfe2b1b690ff4ad9f646a">vda_context::use_sync_decoding</a></div><div class="ttdeci">int use_sync_decoding</div><div class="ttdoc">Use the hardware decoder in synchronous mode. </div><div class="ttdef"><b>Definition:</b> <a href="vda_8h_source.html#l00088">vda.h:88</a></div></div>
<div class="ttc" id="structvda__context_html_a46bbc8f32ea0b46e98e04bfa3a15a141"><div class="ttname"><a href="structvda__context.html#a46bbc8f32ea0b46e98e04bfa3a15a141">vda_context::priv_bitstream</a></div><div class="ttdeci">uint8_t * priv_bitstream</div><div class="ttdoc">unused </div><div class="ttdef"><b>Definition:</b> <a href="vda_8h_source.html#l00125">vda.h:125</a></div></div>
<div class="ttc" id="group__lavc__codec__hwaccel__vda_html_gac1efc3b9787748648228c97845fc4c52"><div class="ttname"><a href="group__lavc__codec__hwaccel__vda.html#gac1efc3b9787748648228c97845fc4c52">ff_vda_create_decoder</a></div><div class="ttdeci">int ff_vda_create_decoder(struct vda_context *vda_ctx, uint8_t *extradata, int extradata_size)</div><div class="ttdoc">Create the video decoder. </div></div>
<div class="ttc" id="structvda__context_html_a4c3ea7e9a9286d2579f41915337fe229"><div class="ttname"><a href="structvda__context.html#a4c3ea7e9a9286d2579f41915337fe229">vda_context::priv_allocated_size</a></div><div class="ttdeci">int priv_allocated_size</div><div class="ttdoc">unused </div><div class="ttdef"><b>Definition:</b> <a href="vda_8h_source.html#l00135">vda.h:135</a></div></div>
<div class="ttc" id="group__lavc__codec__hwaccel__vda_html_ga406d1f99d8c74fbeb2bb6992817d02b3"><div class="ttname"><a href="group__lavc__codec__hwaccel__vda.html#ga406d1f99d8c74fbeb2bb6992817d02b3">av_vda_alloc_context</a></div><div class="ttdeci">AVVDAContext * av_vda_alloc_context(void)</div><div class="ttdoc">Allocate and initialize a VDA context. </div></div>
<div class="ttc" id="structvda__context_html_aa404ef10a896b154cd41829be525d0e3"><div class="ttname"><a href="structvda__context.html#aa404ef10a896b154cd41829be525d0e3">vda_context::height</a></div><div class="ttdeci">int height</div><div class="ttdoc">The frame height. </div><div class="ttdef"><b>Definition:</b> <a href="vda_8h_source.html#l00104">vda.h:104</a></div></div>
<div class="ttc" id="structvda__context_html_a625ea817b807502f9fbf764c882b1bf7"><div class="ttname"><a href="structvda__context.html#a625ea817b807502f9fbf764c882b1bf7">vda_context::priv_bitstream_size</a></div><div class="ttdeci">int priv_bitstream_size</div><div class="ttdoc">unused </div><div class="ttdef"><b>Definition:</b> <a href="vda_8h_source.html#l00130">vda.h:130</a></div></div>
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