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<div class="title">intfloat.h</div> </div>
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<a href="intfloat_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"> * Copyright (c) 2011 Mans Rullgard</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"> * This file is part of FFmpeg.</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"> * FFmpeg is free software; you can redistribute it and/or</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * modify it under the terms of the GNU Lesser General Public</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * License as published by the Free Software Foundation; either</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * version 2.1 of the License, or (at your option) any later version.</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * FFmpeg is distributed in the hope that it will be useful,</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * Lesser General Public License for more details.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * You should have received a copy of the GNU Lesser General Public</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * License along with FFmpeg; if not, write to the Free Software</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#ifndef AVUTIL_INTFLOAT_H</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor"></span><span class="preprocessor">#define AVUTIL_INTFLOAT_H</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <stdint.h></span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include "<a class="code" href="attributes_8h.html">attributes.h</a>"</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div>
<div class="line"><a name="l00027"></a><span class="lineno"><a class="line" href="unionav__intfloat32.html"> 27</a></span> <span class="keyword">union </span><a class="code" href="unionav__intfloat32.html">av_intfloat32</a> {</div>
<div class="line"><a name="l00028"></a><span class="lineno"><a class="line" href="unionav__intfloat32.html#af159360aa1af6aa0a8fe034e0a0e3ef3"> 28</a></span>  uint32_t <a class="code" href="unionav__intfloat32.html#af159360aa1af6aa0a8fe034e0a0e3ef3">i</a>;</div>
<div class="line"><a name="l00029"></a><span class="lineno"><a class="line" href="unionav__intfloat32.html#ab73a5849af5822a9ca6b0cf37af75cc8"> 29</a></span>  <span class="keywordtype">float</span> <a class="code" href="unionav__intfloat32.html#ab73a5849af5822a9ca6b0cf37af75cc8">f</a>;</div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</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"><a class="line" href="unionav__intfloat64.html"> 32</a></span> <span class="keyword">union </span><a class="code" href="unionav__intfloat64.html">av_intfloat64</a> {</div>
<div class="line"><a name="l00033"></a><span class="lineno"><a class="line" href="unionav__intfloat64.html#aa87d447f2b6de18cde7e7686a59dd0f3"> 33</a></span>  uint64_t <a class="code" href="unionav__intfloat64.html#aa87d447f2b6de18cde7e7686a59dd0f3">i</a>;</div>
<div class="line"><a name="l00034"></a><span class="lineno"><a class="line" href="unionav__intfloat64.html#a3c64372dfad0215930e8f18cd09a8aab"> 34</a></span>  <span class="keywordtype">double</span> <a class="code" href="unionav__intfloat64.html#a3c64372dfad0215930e8f18cd09a8aab">f</a>;</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"></span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment">/**</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment"> * Reinterpret a 32-bit integer as a float.</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"><a class="line" href="intfloat_8h.html#a2dc216ec0441d07d650e42d7bdb94b00"> 40</a></span> <span class="keyword">static</span> <a class="code" href="attributes_8h.html#a28f50f4c125959216885f01d56dbe866">av_always_inline</a> <span class="keywordtype">float</span> <a class="code" href="intfloat_8h.html#a2dc216ec0441d07d650e42d7bdb94b00">av_int2float</a>(uint32_t i)</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> {</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keyword">union </span><a class="code" href="unionav__intfloat32.html">av_intfloat32</a> v;</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  v.<a class="code" href="unionav__intfloat32.html#af159360aa1af6aa0a8fe034e0a0e3ef3">i</a> = <a class="code" href="unionav__intfloat32.html#af159360aa1af6aa0a8fe034e0a0e3ef3">i</a>;</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keywordflow">return</span> v.<a class="code" href="unionav__intfloat32.html#ab73a5849af5822a9ca6b0cf37af75cc8">f</a>;</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"></span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment">/**</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment"> * Reinterpret a float as a 32-bit integer.</span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00050"></a><span class="lineno"><a class="line" href="intfloat_8h.html#a1219ed71d83c37c34558df54778e8b46"> 50</a></span> <span class="keyword">static</span> <a class="code" href="attributes_8h.html#a28f50f4c125959216885f01d56dbe866">av_always_inline</a> uint32_t <a class="code" href="intfloat_8h.html#a1219ed71d83c37c34558df54778e8b46">av_float2int</a>(<span class="keywordtype">float</span> <a class="code" href="unionav__intfloat32.html#ab73a5849af5822a9ca6b0cf37af75cc8">f</a>)</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> {</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keyword">union </span><a class="code" href="unionav__intfloat32.html">av_intfloat32</a> v;</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  v.<a class="code" href="unionav__intfloat32.html#ab73a5849af5822a9ca6b0cf37af75cc8">f</a> = <a class="code" href="unionav__intfloat32.html#ab73a5849af5822a9ca6b0cf37af75cc8">f</a>;</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordflow">return</span> v.<a class="code" href="unionav__intfloat32.html#af159360aa1af6aa0a8fe034e0a0e3ef3">i</a>;</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</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"> * Reinterpret a 64-bit integer as a double.</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"><a class="line" href="intfloat_8h.html#af4532dd95ee81d7dd271fd1bffade817"> 60</a></span> <span class="keyword">static</span> <a class="code" href="attributes_8h.html#a28f50f4c125959216885f01d56dbe866">av_always_inline</a> <span class="keywordtype">double</span> <a class="code" href="intfloat_8h.html#af4532dd95ee81d7dd271fd1bffade817">av_int2double</a>(uint64_t <a class="code" href="unionav__intfloat32.html#af159360aa1af6aa0a8fe034e0a0e3ef3">i</a>)</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> {</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keyword">union </span><a class="code" href="unionav__intfloat64.html">av_intfloat64</a> v;</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  v.<a class="code" href="unionav__intfloat64.html#aa87d447f2b6de18cde7e7686a59dd0f3">i</a> = <a class="code" href="unionav__intfloat64.html#aa87d447f2b6de18cde7e7686a59dd0f3">i</a>;</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keywordflow">return</span> v.<a class="code" href="unionav__intfloat64.html#a3c64372dfad0215930e8f18cd09a8aab">f</a>;</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</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">/**</span></div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="comment"> * Reinterpret a double as a 64-bit integer.</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00070"></a><span class="lineno"><a class="line" href="intfloat_8h.html#ae3b5f3db537273543dfcce45816ba02a"> 70</a></span> <span class="keyword">static</span> <a class="code" href="attributes_8h.html#a28f50f4c125959216885f01d56dbe866">av_always_inline</a> uint64_t <a class="code" href="intfloat_8h.html#ae3b5f3db537273543dfcce45816ba02a">av_double2int</a>(<span class="keywordtype">double</span> <a class="code" href="unionav__intfloat64.html#a3c64372dfad0215930e8f18cd09a8aab">f</a>)</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> {</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keyword">union </span><a class="code" href="unionav__intfloat64.html">av_intfloat64</a> v;</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  v.<a class="code" href="unionav__intfloat64.html#a3c64372dfad0215930e8f18cd09a8aab">f</a> = <a class="code" href="unionav__intfloat64.html#a3c64372dfad0215930e8f18cd09a8aab">f</a>;</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordflow">return</span> v.<a class="code" href="unionav__intfloat64.html#aa87d447f2b6de18cde7e7686a59dd0f3">i</a>;</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> }</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> </div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="preprocessor">#endif </span><span class="comment">/* AVUTIL_INTFLOAT_H */</span><span class="preprocessor"></span></div>
<div class="ttc" id="unionav__intfloat64_html_a3c64372dfad0215930e8f18cd09a8aab"><div class="ttname"><a href="unionav__intfloat64.html#a3c64372dfad0215930e8f18cd09a8aab">av_intfloat64::f</a></div><div class="ttdeci">double f</div><div class="ttdef"><b>Definition:</b> <a href="intfloat_8h_source.html#l00034">intfloat.h:34</a></div></div>
<div class="ttc" id="intfloat_8h_html_a2dc216ec0441d07d650e42d7bdb94b00"><div class="ttname"><a href="intfloat_8h.html#a2dc216ec0441d07d650e42d7bdb94b00">av_int2float</a></div><div class="ttdeci">static av_always_inline float av_int2float(uint32_t i)</div><div class="ttdoc">Reinterpret a 32-bit integer as a float. </div><div class="ttdef"><b>Definition:</b> <a href="intfloat_8h_source.html#l00040">intfloat.h:40</a></div></div>
<div class="ttc" id="intfloat_8h_html_ae3b5f3db537273543dfcce45816ba02a"><div class="ttname"><a href="intfloat_8h.html#ae3b5f3db537273543dfcce45816ba02a">av_double2int</a></div><div class="ttdeci">static av_always_inline uint64_t av_double2int(double f)</div><div class="ttdoc">Reinterpret a double as a 64-bit integer. </div><div class="ttdef"><b>Definition:</b> <a href="intfloat_8h_source.html#l00070">intfloat.h:70</a></div></div>
<div class="ttc" id="unionav__intfloat64_html_aa87d447f2b6de18cde7e7686a59dd0f3"><div class="ttname"><a href="unionav__intfloat64.html#aa87d447f2b6de18cde7e7686a59dd0f3">av_intfloat64::i</a></div><div class="ttdeci">uint64_t i</div><div class="ttdef"><b>Definition:</b> <a href="intfloat_8h_source.html#l00033">intfloat.h:33</a></div></div>
<div class="ttc" id="attributes_8h_html"><div class="ttname"><a href="attributes_8h.html">attributes.h</a></div><div class="ttdoc">Macro definitions for various function/variable attributes. </div></div>
<div class="ttc" id="intfloat_8h_html_af4532dd95ee81d7dd271fd1bffade817"><div class="ttname"><a href="intfloat_8h.html#af4532dd95ee81d7dd271fd1bffade817">av_int2double</a></div><div class="ttdeci">static av_always_inline double av_int2double(uint64_t i)</div><div class="ttdoc">Reinterpret a 64-bit integer as a double. </div><div class="ttdef"><b>Definition:</b> <a href="intfloat_8h_source.html#l00060">intfloat.h:60</a></div></div>
<div class="ttc" id="unionav__intfloat32_html_ab73a5849af5822a9ca6b0cf37af75cc8"><div class="ttname"><a href="unionav__intfloat32.html#ab73a5849af5822a9ca6b0cf37af75cc8">av_intfloat32::f</a></div><div class="ttdeci">float f</div><div class="ttdef"><b>Definition:</b> <a href="intfloat_8h_source.html#l00029">intfloat.h:29</a></div></div>
<div class="ttc" id="unionav__intfloat64_html"><div class="ttname"><a href="unionav__intfloat64.html">av_intfloat64</a></div><div class="ttdef"><b>Definition:</b> <a href="intfloat_8h_source.html#l00032">intfloat.h:32</a></div></div>
<div class="ttc" id="unionav__intfloat32_html_af159360aa1af6aa0a8fe034e0a0e3ef3"><div class="ttname"><a href="unionav__intfloat32.html#af159360aa1af6aa0a8fe034e0a0e3ef3">av_intfloat32::i</a></div><div class="ttdeci">uint32_t i</div><div class="ttdef"><b>Definition:</b> <a href="intfloat_8h_source.html#l00028">intfloat.h:28</a></div></div>
<div class="ttc" id="unionav__intfloat32_html"><div class="ttname"><a href="unionav__intfloat32.html">av_intfloat32</a></div><div class="ttdef"><b>Definition:</b> <a href="intfloat_8h_source.html#l00027">intfloat.h:27</a></div></div>
<div class="ttc" id="intfloat_8h_html_a1219ed71d83c37c34558df54778e8b46"><div class="ttname"><a href="intfloat_8h.html#a1219ed71d83c37c34558df54778e8b46">av_float2int</a></div><div class="ttdeci">static av_always_inline uint32_t av_float2int(float f)</div><div class="ttdoc">Reinterpret a float as a 32-bit integer. </div><div class="ttdef"><b>Definition:</b> <a href="intfloat_8h_source.html#l00050">intfloat.h:50</a></div></div>
<div class="ttc" id="attributes_8h_html_a28f50f4c125959216885f01d56dbe866"><div class="ttname"><a href="attributes_8h.html#a28f50f4c125959216885f01d56dbe866">av_always_inline</a></div><div class="ttdeci">#define av_always_inline</div><div class="ttdef"><b>Definition:</b> <a href="attributes_8h_source.html#l00039">attributes.h:39</a></div></div>
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