coder_8h_source.html
1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 2 <html xmlns="http://www.w3.org/1999/xhtml"> 3 <head> 4 <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> 5 <meta http-equiv="X-UA-Compatible" content="IE=9"/> 6 <meta name="generator" content="Doxygen 1.8.14"/> 7 <meta name="viewport" content="width=device-width, initial-scale=1"/> 8 <title>Adafruit mp3: src/coder.h Source File</title> 9 <link href="tabs.css" rel="stylesheet" type="text/css"/> 10 <script type="text/javascript" src="jquery.js"></script> 11 <script type="text/javascript" src="dynsections.js"></script> 12 <link href="search/search.css" rel="stylesheet" type="text/css"/> 13 <script type="text/javascript" src="search/searchdata.js"></script> 14 <script type="text/javascript" src="search/search.js"></script> 15 <link href="doxygen.css" rel="stylesheet" type="text/css" /> 16 </head> 17 <body> 18 <div id="top"><!-- do not remove this div, it is closed by doxygen! --> 19 <div id="titlearea"> 20 <table cellspacing="0" cellpadding="0"> 21 <tbody> 22 <tr style="height: 56px;"> 23 <td id="projectalign" style="padding-left: 0.5em;"> 24 <div id="projectname">Adafruit mp3 25 </div> 26 </td> 27 </tr> 28 </tbody> 29 </table> 30 </div> 31 <!-- end header part --> 32 <!-- Generated by Doxygen 1.8.14 --> 33 <script type="text/javascript"> 34 /* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */ 35 var searchBox = new SearchBox("searchBox", "search",false,'Search'); 36 /* @license-end */ 37 </script> 38 <script type="text/javascript" src="menudata.js"></script> 39 <script type="text/javascript" src="menu.js"></script> 40 <script type="text/javascript"> 41 /* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */ 42 $(function() { 43 initMenu('',true,false,'search.php','Search'); 44 $(document).ready(function() { init_search(); }); 45 }); 46 /* @license-end */</script> 47 <div id="main-nav"></div> 48 <!-- window showing the filter options --> 49 <div id="MSearchSelectWindow" 50 onmouseover="return searchBox.OnSearchSelectShow()" 51 onmouseout="return searchBox.OnSearchSelectHide()" 52 onkeydown="return searchBox.OnSearchSelectKey(event)"> 53 </div> 54 55 <!-- iframe showing the search results (closed by default) --> 56 <div id="MSearchResultsWindow"> 57 <iframe src="javascript:void(0)" frameborder="0" 58 name="MSearchResults" id="MSearchResults"> 59 </iframe> 60 </div> 61 62 <div id="nav-path" class="navpath"> 63 <ul> 64 <li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li> </ul> 65 </div> 66 </div><!-- top --> 67 <div class="header"> 68 <div class="headertitle"> 69 <div class="title">coder.h</div> </div> 70 </div><!--header--> 71 <div class="contents"> 72 <div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/* ***** BEGIN LICENSE BLOCK ***** </span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Version: RCSL 1.0/RPSL 1.0 </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"> * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved. </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"> * The contents of this file, and the files included with this file, are </span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * subject to the current version of the RealNetworks Public Source License </span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * Version 1.0 (the "RPSL") available at </span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * http://www.helixcommunity.org/content/rpsl unless you have licensed </span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * the file under the RealNetworks Community Source License Version 1.0 </span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl, </span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * in which case the RCSL will apply. You may also obtain the license terms </span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * directly from RealNetworks. You may not use this file except in </span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * compliance with the RPSL or, if you have a valid RCSL with RealNetworks </span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * applicable to this file, the RCSL. Please see the applicable RPSL or </span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * RCSL for the rights, obligations and limitations governing use of the </span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * contents of the file. </span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * </span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * This file is part of the Helix DNA Technology. RealNetworks is the </span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * developer of the Original Code and owns the copyrights in the portions </span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> * it created. </span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> * </span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> * This file, and the files included with this file, is distributed and made </span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"> * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER </span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"> * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES, </span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS </span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. </span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment"> * </span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment"> * Technology Compatibility Kit Test Suite(s) Location: </span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment"> * http://www.helixcommunity.org/content/tck </span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment"> * </span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment"> * Contributor(s): </span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment"> * </span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment"> * ***** END LICENSE BLOCK ***** */</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">/**************************************************************************************</span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment"> * Fixed-point MP3 decoder</span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment"> * Jon Recker (jrecker@real.com), Ken Cooke (kenc@real.com)</span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment"> * June 2003</span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment"> *</span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment"> * coder.h - private, implementation-specific header file</span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment"> **************************************************************************************/</span></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor">#ifndef _CODER_H</span></div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="preprocessor">#define _CODER_H</span></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="preprocessor">#include "mp3common.h"</span></div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="preprocessor">#if defined(ASSERT)</span></div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="preprocessor">#undef ASSERT</span></div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="preprocessor">#if defined(_WIN32) && defined(_M_IX86) && (defined (_DEBUG) || defined (REL_ENABLE_ASSERTS))</span></div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="preprocessor">#define ASSERT(x) if (!(x)) __asm int 3;</span></div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="preprocessor">#define ASSERT(x) </span><span class="comment">/* do nothing */</span><span class="preprocessor"></span></div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> </div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="preprocessor">#ifndef MAX</span></div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="preprocessor">#define MAX(a,b) ((a) > (b) ? (a) : (b))</span></div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="preprocessor">#endif</span></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="preprocessor">#ifndef MIN</span></div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="preprocessor">#define MIN(a,b) ((a) < (b) ? (a) : (b))</span></div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="preprocessor">#endif</span></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">/* clip to range [-2^n, 2^n - 1] */</span></div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="preprocessor">#define CLIP_2N(y, n) { \</span></div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="preprocessor"> int sign = (y) >> 31; \</span></div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="preprocessor"> if (sign != (y) >> (n)) { \</span></div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="preprocessor"> (y) = sign ^ ((1 << (n)) - 1); \</span></div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="preprocessor">}</span></div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> </div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="preprocessor">#define SIBYTES_MPEG1_MONO 17</span></div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="preprocessor">#define SIBYTES_MPEG1_STEREO 32</span></div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="preprocessor">#define SIBYTES_MPEG2_MONO 9</span></div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="preprocessor">#define SIBYTES_MPEG2_STEREO 17</span></div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span> </div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="comment">/* number of fraction bits for pow43Tab (see comments there) */</span></div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="preprocessor">#define POW43_FRACBITS_LOW 22</span></div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="preprocessor">#define POW43_FRACBITS_HIGH 12</span></div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> </div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="preprocessor">#define DQ_FRACBITS_OUT 25 </span><span class="comment">/* number of fraction bits in output of dequant */</span><span class="preprocessor"></span></div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="preprocessor">#define IMDCT_SCALE 2 </span><span class="comment">/* additional scaling (by sqrt(2)) for fast IMDCT36 */</span><span class="preprocessor"></span></div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span> </div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="preprocessor">#define HUFF_PAIRTABS 32</span></div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="preprocessor">#define BLOCK_SIZE 18</span></div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="preprocessor">#define NBANDS 32</span></div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="preprocessor">#define MAX_REORDER_SAMPS ((192-126)*3) </span><span class="comment">/* largest critical band for short blocks (see sfBandTable) */</span><span class="preprocessor"></span></div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="preprocessor">#define VBUF_LENGTH (17 * 2 * NBANDS) </span><span class="comment">/* for double-sized vbuf FIFO */</span><span class="preprocessor"></span></div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> </div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="comment">/* additional external symbols to name-mangle for static linking */</span></div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="preprocessor">#define SetBitstreamPointer STATNAME(SetBitstreamPointer)</span></div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="preprocessor">#define GetBits STATNAME(GetBits)</span></div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="preprocessor">#define CalcBitsUsed STATNAME(CalcBitsUsed)</span></div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="preprocessor">#define DequantChannel STATNAME(DequantChannel)</span></div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="preprocessor">#define MidSideProc STATNAME(MidSideProc)</span></div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="preprocessor">#define IntensityProcMPEG1 STATNAME(IntensityProcMPEG1)</span></div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="preprocessor">#define IntensityProcMPEG2 STATNAME(IntensityProcMPEG2)</span></div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="preprocessor">#define PolyphaseMono STATNAME(PolyphaseMono)</span></div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="preprocessor">#define PolyphaseStereo STATNAME(PolyphaseStereo)</span></div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="preprocessor">#define FDCT32 STATNAME(FDCT32)</span></div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span> </div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="preprocessor">#define ISFMpeg1 STATNAME(ISFMpeg1)</span></div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="preprocessor">#define ISFMpeg2 STATNAME(ISFMpeg2)</span></div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="preprocessor">#define ISFIIP STATNAME(ISFIIP)</span></div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="preprocessor">#define uniqueIDTab STATNAME(uniqueIDTab)</span></div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="preprocessor">#define coef32 STATNAME(coef32)</span></div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span> <span class="preprocessor">#define polyCoef STATNAME(polyCoef)</span></div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="preprocessor">#define csa STATNAME(csa)</span></div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="preprocessor">#define imdctWin STATNAME(imdctWin)</span></div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span> </div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="preprocessor">#define huffTable STATNAME(huffTable)</span></div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="preprocessor">#define huffTabOffset STATNAME(huffTabOffset)</span></div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="preprocessor">#define huffTabLookup STATNAME(huffTabLookup)</span></div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="preprocessor">#define quadTable STATNAME(quadTable)</span></div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="preprocessor">#define quadTabOffset STATNAME(quadTabOffset)</span></div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span> <span class="preprocessor">#define quadTabMaxBits STATNAME(quadTabMaxBits)</span></div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span> </div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span> <span class="comment">/* map these to the corresponding 2-bit values in the frame header */</span></div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span> <span class="keyword">typedef</span> <span class="keyword">enum</span> {</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  Stereo = 0x00, <span class="comment">/* two independent channels, but L and R frames might have different # of bits */</span></div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  Joint = 0x01, <span class="comment">/* coupled channels - layer III: mix of M-S and intensity, Layers I/II: intensity and direct coding only */</span></div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  Dual = 0x02, <span class="comment">/* two independent channels, L and R always have exactly 1/2 the total bitrate */</span></div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  Mono = 0x03 <span class="comment">/* one channel */</span></div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> } StereoMode;</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> </div><div class="line"><a name="l00128"></a><span class="lineno"><a class="line" href="struct__BitStreamInfo.html"> 128</a></span> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="struct__BitStreamInfo.html">_BitStreamInfo</a> {</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *bytePtr;</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> iCache;</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordtype">int</span> cachedBits;</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordtype">int</span> nBytes;</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span> } <a class="code" href="struct__BitStreamInfo.html">BitStreamInfo</a>;</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div><div class="line"><a name="l00135"></a><span class="lineno"><a class="line" href="struct__FrameHeader.html"> 135</a></span> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="struct__FrameHeader.html">_FrameHeader</a> {</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  MPEGVersion ver; <span class="comment">/* version ID */</span></div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keywordtype">int</span> layer; <span class="comment">/* layer index (1, 2, or 3) */</span></div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keywordtype">int</span> crc; <span class="comment">/* CRC flag: 0 = disabled, 1 = enabled */</span></div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordtype">int</span> brIdx; <span class="comment">/* bitrate index (0 - 15) */</span></div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keywordtype">int</span> srIdx; <span class="comment">/* sample rate index (0 - 2) */</span></div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keywordtype">int</span> paddingBit; <span class="comment">/* padding flag: 0 = no padding, 1 = single pad byte */</span></div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="keywordtype">int</span> privateBit; <span class="comment">/* unused */</span></div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  StereoMode sMode; <span class="comment">/* mono/stereo mode */</span></div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keywordtype">int</span> modeExt; <span class="comment">/* used to decipher joint stereo mode */</span></div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keywordtype">int</span> copyFlag; <span class="comment">/* copyright flag: 0 = no, 1 = yes */</span></div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordtype">int</span> origFlag; <span class="comment">/* original flag: 0 = copy, 1 = original */</span></div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordtype">int</span> emphasis; <span class="comment">/* deemphasis mode */</span></div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordtype">int</span> CRCWord; <span class="comment">/* CRC word (16 bits, 0 if crc not enabled) */</span></div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span> </div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keyword">const</span> <a class="code" href="struct__SFBandTable.html">SFBandTable</a> *sfBand;</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span> } <a class="code" href="struct__FrameHeader.html">FrameHeader</a>;</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span> </div><div class="line"><a name="l00153"></a><span class="lineno"><a class="line" href="struct__SideInfoSub.html"> 153</a></span> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="struct__SideInfoSub.html">_SideInfoSub</a> {</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordtype">int</span> part23Length; <span class="comment">/* number of bits in main data */</span> </div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keywordtype">int</span> nBigvals; <span class="comment">/* 2x this = first set of Huffman cw's (maximum amplitude can be > 1) */</span></div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keywordtype">int</span> globalGain; <span class="comment">/* overall gain for dequantizer */</span></div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keywordtype">int</span> sfCompress; <span class="comment">/* unpacked to figure out number of bits in scale factors */</span></div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordtype">int</span> winSwitchFlag; <span class="comment">/* window switching flag */</span></div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keywordtype">int</span> blockType; <span class="comment">/* block type */</span></div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keywordtype">int</span> mixedBlock; <span class="comment">/* 0 = regular block (all short or long), 1 = mixed block */</span></div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keywordtype">int</span> tableSelect[3]; <span class="comment">/* index of Huffman tables for the big values regions */</span></div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordtype">int</span> subBlockGain[3]; <span class="comment">/* subblock gain offset, relative to global gain */</span></div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordtype">int</span> region0Count; <span class="comment">/* 1+region0Count = num scale factor bands in first region of bigvals */</span></div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordtype">int</span> region1Count; <span class="comment">/* 1+region1Count = num scale factor bands in second region of bigvals */</span></div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="keywordtype">int</span> preFlag; <span class="comment">/* for optional high frequency boost */</span></div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keywordtype">int</span> sfactScale; <span class="comment">/* scaling of the scalefactors */</span></div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keywordtype">int</span> count1TableSelect; <span class="comment">/* index of Huffman table for quad codewords */</span></div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span> } <a class="code" href="struct__SideInfoSub.html">SideInfoSub</a>;</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span> </div><div class="line"><a name="l00170"></a><span class="lineno"><a class="line" href="struct__SideInfo.html"> 170</a></span> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="struct__SideInfo.html">_SideInfo</a> {</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keywordtype">int</span> mainDataBegin;</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keywordtype">int</span> privateBits;</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="keywordtype">int</span> scfsi[MAX_NCHAN][MAX_SCFBD]; <span class="comment">/* 4 scalefactor bands per channel */</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"> 175</span>  <a class="code" href="struct__SideInfoSub.html">SideInfoSub</a> sis[MAX_NGRAN][MAX_NCHAN];</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span> } <a class="code" href="struct__SideInfo.html">SideInfo</a>;</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span> </div><div class="line"><a name="l00178"></a><span class="lineno"><a class="line" href="structCriticalBandInfo.html"> 178</a></span> <span class="keyword">typedef</span> <span class="keyword">struct </span>{</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keywordtype">int</span> cbType; <span class="comment">/* pure long = 0, pure short = 1, mixed = 2 */</span></div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keywordtype">int</span> cbEndS[3]; <span class="comment">/* number nonzero short cb's, per subbblock */</span></div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keywordtype">int</span> cbEndSMax; <span class="comment">/* max of cbEndS[] */</span></div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keywordtype">int</span> cbEndL; <span class="comment">/* number nonzero long cb's */</span></div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span> } <a class="code" href="structCriticalBandInfo.html">CriticalBandInfo</a>;</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span> </div><div class="line"><a name="l00185"></a><span class="lineno"><a class="line" href="struct__DequantInfo.html"> 185</a></span> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="struct__DequantInfo.html">_DequantInfo</a> {</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordtype">int</span> workBuf[MAX_REORDER_SAMPS]; <span class="comment">/* workbuf for reordering short blocks */</span></div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <a class="code" href="structCriticalBandInfo.html">CriticalBandInfo</a> cbi[MAX_NCHAN]; <span class="comment">/* filled in dequantizer, used in joint stereo reconstruction */</span></div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span> } <a class="code" href="struct__DequantInfo.html">DequantInfo</a>;</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span> </div><div class="line"><a name="l00190"></a><span class="lineno"><a class="line" href="struct__HuffmanInfo.html"> 190</a></span> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="struct__HuffmanInfo.html">_HuffmanInfo</a> {</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="keywordtype">int</span> huffDecBuf[MAX_NCHAN][MAX_NSAMP]; <span class="comment">/* used both for decoded Huffman values and dequantized coefficients */</span></div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="keywordtype">int</span> nonZeroBound[MAX_NCHAN]; <span class="comment">/* number of coeffs in huffDecBuf[ch] which can be > 0 */</span></div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keywordtype">int</span> gb[MAX_NCHAN]; <span class="comment">/* minimum number of guard bits in huffDecBuf[ch] */</span></div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span> } <a class="code" href="struct__HuffmanInfo.html">HuffmanInfo</a>;</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span> </div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span> <span class="keyword">typedef</span> <span class="keyword">enum</span> _HuffTabType {</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  noBits,</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  oneShot,</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  loopNoLinbits,</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  loopLinbits,</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  quadA,</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  quadB,</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  invalidTab</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span> } HuffTabType;</div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span> </div><div class="line"><a name="l00206"></a><span class="lineno"><a class="line" href="struct__HuffTabLookup.html"> 206</a></span> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="struct__HuffTabLookup.html">_HuffTabLookup</a> {</div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="keywordtype">int</span> linBits;</div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  HuffTabType tabType;</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span> } <a class="code" href="struct__HuffTabLookup.html">HuffTabLookup</a>;</div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span> </div><div class="line"><a name="l00211"></a><span class="lineno"><a class="line" href="struct__IMDCTInfo.html"> 211</a></span> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="struct__IMDCTInfo.html">_IMDCTInfo</a> {</div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordtype">int</span> outBuf[MAX_NCHAN][BLOCK_SIZE][NBANDS]; <span class="comment">/* output of IMDCT */</span> </div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="keywordtype">int</span> overBuf[MAX_NCHAN][MAX_NSAMP / 2]; <span class="comment">/* overlap-add buffer (by symmetry, only need 1/2 size) */</span></div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keywordtype">int</span> numPrevIMDCT[MAX_NCHAN]; <span class="comment">/* how many IMDCT's calculated in this channel on prev. granule */</span></div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keywordtype">int</span> prevType[MAX_NCHAN];</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  <span class="keywordtype">int</span> prevWinSwitch[MAX_NCHAN];</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="keywordtype">int</span> gb[MAX_NCHAN];</div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span> } <a class="code" href="struct__IMDCTInfo.html">IMDCTInfo</a>;</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span> </div><div class="line"><a name="l00220"></a><span class="lineno"><a class="line" href="struct__BlockCount.html"> 220</a></span> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="struct__BlockCount.html">_BlockCount</a> {</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <span class="keywordtype">int</span> nBlocksLong;</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keywordtype">int</span> nBlocksTotal;</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keywordtype">int</span> nBlocksPrev; </div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="keywordtype">int</span> prevType;</div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keywordtype">int</span> prevWinSwitch;</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <span class="keywordtype">int</span> currWinSwitch;</div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="keywordtype">int</span> gbIn;</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <span class="keywordtype">int</span> gbOut;</div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span> } <a class="code" href="struct__BlockCount.html">BlockCount</a>;</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> <span class="comment">/* max bits in scalefactors = 5, so use char's to save space */</span></div><div class="line"><a name="l00232"></a><span class="lineno"><a class="line" href="struct__ScaleFactorInfoSub.html"> 232</a></span> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="struct__ScaleFactorInfoSub.html">_ScaleFactorInfoSub</a> {</div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="keywordtype">char</span> l[23]; <span class="comment">/* [band] */</span></div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="keywordtype">char</span> s[13][3]; <span class="comment">/* [band][window] */</span></div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span> } <a class="code" href="struct__ScaleFactorInfoSub.html">ScaleFactorInfoSub</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> <span class="comment">/* used in MPEG 2, 2.5 intensity (joint) stereo only */</span></div><div class="line"><a name="l00238"></a><span class="lineno"><a class="line" href="struct__ScaleFactorJS.html"> 238</a></span> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="struct__ScaleFactorJS.html">_ScaleFactorJS</a> {</div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="keywordtype">int</span> intensityScale; </div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="keywordtype">int</span> slen[4];</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="keywordtype">int</span> nr[4];</div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span> } <a class="code" href="struct__ScaleFactorJS.html">ScaleFactorJS</a>;</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="struct__ScaleFactorInfo.html"> 244</a></span> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="struct__ScaleFactorInfo.html">_ScaleFactorInfo</a> {</div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <a class="code" href="struct__ScaleFactorInfoSub.html">ScaleFactorInfoSub</a> sfis[MAX_NGRAN][MAX_NCHAN];</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <a class="code" href="struct__ScaleFactorJS.html">ScaleFactorJS</a> sfjs;</div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span> } <a class="code" href="struct__ScaleFactorInfo.html">ScaleFactorInfo</a>;</div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span> </div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span> <span class="comment">/* NOTE - could get by with smaller vbuf if memory is more important than speed</span></div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span> <span class="comment"> * (in Subband, instead of replicating each block in FDCT32 you would do a memmove on the</span></div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span> <span class="comment"> * last 15 blocks to shift them down one, a hardware style FIFO)</span></div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span> <span class="comment"> */</span> </div><div class="line"><a name="l00253"></a><span class="lineno"><a class="line" href="struct__SubbandInfo.html"> 253</a></span> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="struct__SubbandInfo.html">_SubbandInfo</a> {</div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="keywordtype">int</span> vbuf[MAX_NCHAN * VBUF_LENGTH]; <span class="comment">/* vbuf for fast DCT-based synthesis PQMF - double size for speed (no modulo indexing) */</span></div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="keywordtype">int</span> vindex; <span class="comment">/* internal index for tracking position in vbuf */</span></div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span> } <a class="code" href="struct__SubbandInfo.html">SubbandInfo</a>;</div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span> </div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span> <span class="comment">/* bitstream.c */</span></div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span> <span class="keywordtype">void</span> SetBitstreamPointer(<a class="code" href="struct__BitStreamInfo.html">BitStreamInfo</a> *bsi, <span class="keywordtype">int</span> nBytes, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *buf);</div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> GetBits(<a class="code" href="struct__BitStreamInfo.html">BitStreamInfo</a> *bsi, <span class="keywordtype">int</span> nBits);</div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span> <span class="keywordtype">int</span> CalcBitsUsed(<a class="code" href="struct__BitStreamInfo.html">BitStreamInfo</a> *bsi, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *startBuf, <span class="keywordtype">int</span> startOffset);</div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span> </div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span> <span class="comment">/* dequant.c, dqchan.c, stproc.c */</span></div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span> <span class="keywordtype">int</span> DequantChannel(<span class="keywordtype">int</span> *sampleBuf, <span class="keywordtype">int</span> *workBuf, <span class="keywordtype">int</span> *nonZeroBound, <a class="code" href="struct__FrameHeader.html">FrameHeader</a> *fh, <a class="code" href="struct__SideInfoSub.html">SideInfoSub</a> *sis, </div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  <a class="code" href="struct__ScaleFactorInfoSub.html">ScaleFactorInfoSub</a> *sfis, <a class="code" href="structCriticalBandInfo.html">CriticalBandInfo</a> *cbi);</div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span> <span class="keywordtype">void</span> MidSideProc(<span class="keywordtype">int</span> x[MAX_NCHAN][MAX_NSAMP], <span class="keywordtype">int</span> nSamps, <span class="keywordtype">int</span> mOut[2]);</div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span> <span class="keywordtype">void</span> IntensityProcMPEG1(<span class="keywordtype">int</span> x[MAX_NCHAN][MAX_NSAMP], <span class="keywordtype">int</span> nSamps, <a class="code" href="struct__FrameHeader.html">FrameHeader</a> *fh, <a class="code" href="struct__ScaleFactorInfoSub.html">ScaleFactorInfoSub</a> *sfis, </div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  <a class="code" href="structCriticalBandInfo.html">CriticalBandInfo</a> *cbi, <span class="keywordtype">int</span> midSideFlag, <span class="keywordtype">int</span> mixFlag, <span class="keywordtype">int</span> mOut[2]);</div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span> <span class="keywordtype">void</span> IntensityProcMPEG2(<span class="keywordtype">int</span> x[MAX_NCHAN][MAX_NSAMP], <span class="keywordtype">int</span> nSamps, <a class="code" href="struct__FrameHeader.html">FrameHeader</a> *fh, <a class="code" href="struct__ScaleFactorInfoSub.html">ScaleFactorInfoSub</a> *sfis, </div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <a class="code" href="structCriticalBandInfo.html">CriticalBandInfo</a> *cbi, <a class="code" href="struct__ScaleFactorJS.html">ScaleFactorJS</a> *sfjs, <span class="keywordtype">int</span> midSideFlag, <span class="keywordtype">int</span> mixFlag, <span class="keywordtype">int</span> mOut[2]);</div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span> </div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span> <span class="comment">/* dct32.c */</span></div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span> <span class="comment">// about 1 ms faster in RAM, but very large</span></div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span> <span class="keywordtype">void</span> FDCT32(<span class="keywordtype">int</span> *x, <span class="keywordtype">int</span> *d, <span class="keywordtype">int</span> offset, <span class="keywordtype">int</span> oddBlock, <span class="keywordtype">int</span> gb);<span class="comment">// __attribute__ ((section (".data")));</span></div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span> </div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span> <span class="comment">/* hufftabs.c */</span></div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span> <span class="keyword">extern</span> <span class="keyword">const</span> <a class="code" href="struct__HuffTabLookup.html">HuffTabLookup</a> huffTabLookup[HUFF_PAIRTABS];</div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span> <span class="keyword">extern</span> <span class="keyword">const</span> <span class="keywordtype">int</span> huffTabOffset[HUFF_PAIRTABS];</div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span> <span class="keyword">extern</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> huffTable[];</div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span> <span class="keyword">extern</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> quadTable[64+16];</div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span> <span class="keyword">extern</span> <span class="keyword">const</span> <span class="keywordtype">int</span> quadTabOffset[2];</div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span> <span class="keyword">extern</span> <span class="keyword">const</span> <span class="keywordtype">int</span> quadTabMaxBits[2];</div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span> </div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span> <span class="comment">/* polyphase.c (or asmpoly.s)</span></div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span> <span class="comment"> * some platforms require a C++ compile of all source files,</span></div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span> <span class="comment"> * so if we're compiling C as C++ and using native assembly</span></div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span> <span class="comment"> * for these functions we need to prevent C++ name mangling.</span></div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span> <span class="comment"> */</span></div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span> <span class="preprocessor">#ifdef __cplusplus</span></div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span> <span class="keyword">extern</span> <span class="stringliteral">"C"</span> {</div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span> <span class="keywordtype">void</span> PolyphaseMono(<span class="keywordtype">short</span> *pcm, <span class="keywordtype">int</span> *vbuf, <span class="keyword">const</span> <span class="keywordtype">int</span> *coefBase);</div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span> <span class="keywordtype">void</span> PolyphaseStereo(<span class="keywordtype">short</span> *pcm, <span class="keywordtype">int</span> *vbuf, <span class="keyword">const</span> <span class="keywordtype">int</span> *coefBase);</div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span> <span class="preprocessor">#ifdef __cplusplus</span></div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span> }</div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span> </div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span> <span class="comment">/* trigtabs.c */</span></div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span> <span class="keyword">extern</span> <span class="keyword">const</span> <span class="keywordtype">int</span> imdctWin[4][36];</div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span> <span class="keyword">extern</span> <span class="keyword">const</span> <span class="keywordtype">int</span> ISFMpeg1[2][7];</div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span> <span class="keyword">extern</span> <span class="keyword">const</span> <span class="keywordtype">int</span> ISFMpeg2[2][2][16];</div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span> <span class="keyword">extern</span> <span class="keyword">const</span> <span class="keywordtype">int</span> ISFIIP[2][2];</div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span> <span class="keyword">extern</span> <span class="keyword">const</span> <span class="keywordtype">int</span> csa[8][2];</div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span> <span class="keyword">extern</span> <span class="keyword">const</span> <span class="keywordtype">int</span> coef32[31];</div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span> <span class="keyword">extern</span> <span class="keyword">const</span> <span class="keywordtype">int</span> polyCoef[264];</div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span> </div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span> <span class="preprocessor">#endif </span><span class="comment">/* _CODER_H */</span><span class="preprocessor"></span></div><div class="ttc" id="struct__DequantInfo_html"><div class="ttname"><a href="struct__DequantInfo.html">_DequantInfo</a></div><div class="ttdef"><b>Definition:</b> coder.h:185</div></div> 73 <div class="ttc" id="struct__SFBandTable_html"><div class="ttname"><a href="struct__SFBandTable.html">_SFBandTable</a></div><div class="ttdef"><b>Definition:</b> mp3common.h:97</div></div> 74 <div class="ttc" id="struct__ScaleFactorInfo_html"><div class="ttname"><a href="struct__ScaleFactorInfo.html">_ScaleFactorInfo</a></div><div class="ttdef"><b>Definition:</b> coder.h:244</div></div> 75 <div class="ttc" id="struct__ScaleFactorInfoSub_html"><div class="ttname"><a href="struct__ScaleFactorInfoSub.html">_ScaleFactorInfoSub</a></div><div class="ttdef"><b>Definition:</b> coder.h:232</div></div> 76 <div class="ttc" id="struct__ScaleFactorJS_html"><div class="ttname"><a href="struct__ScaleFactorJS.html">_ScaleFactorJS</a></div><div class="ttdef"><b>Definition:</b> coder.h:238</div></div> 77 <div class="ttc" id="struct__SideInfoSub_html"><div class="ttname"><a href="struct__SideInfoSub.html">_SideInfoSub</a></div><div class="ttdef"><b>Definition:</b> coder.h:153</div></div> 78 <div class="ttc" id="struct__BlockCount_html"><div class="ttname"><a href="struct__BlockCount.html">_BlockCount</a></div><div class="ttdef"><b>Definition:</b> coder.h:220</div></div> 79 <div class="ttc" id="structCriticalBandInfo_html"><div class="ttname"><a href="structCriticalBandInfo.html">CriticalBandInfo</a></div><div class="ttdef"><b>Definition:</b> coder.h:178</div></div> 80 <div class="ttc" id="struct__HuffTabLookup_html"><div class="ttname"><a href="struct__HuffTabLookup.html">_HuffTabLookup</a></div><div class="ttdef"><b>Definition:</b> coder.h:206</div></div> 81 <div class="ttc" id="struct__FrameHeader_html"><div class="ttname"><a href="struct__FrameHeader.html">_FrameHeader</a></div><div class="ttdef"><b>Definition:</b> coder.h:135</div></div> 82 <div class="ttc" id="struct__SideInfo_html"><div class="ttname"><a href="struct__SideInfo.html">_SideInfo</a></div><div class="ttdef"><b>Definition:</b> coder.h:170</div></div> 83 <div class="ttc" id="struct__SubbandInfo_html"><div class="ttname"><a href="struct__SubbandInfo.html">_SubbandInfo</a></div><div class="ttdef"><b>Definition:</b> coder.h:253</div></div> 84 <div class="ttc" id="struct__IMDCTInfo_html"><div class="ttname"><a href="struct__IMDCTInfo.html">_IMDCTInfo</a></div><div class="ttdef"><b>Definition:</b> coder.h:211</div></div> 85 <div class="ttc" id="struct__BitStreamInfo_html"><div class="ttname"><a href="struct__BitStreamInfo.html">_BitStreamInfo</a></div><div class="ttdef"><b>Definition:</b> coder.h:128</div></div> 86 <div class="ttc" id="struct__HuffmanInfo_html"><div class="ttname"><a href="struct__HuffmanInfo.html">_HuffmanInfo</a></div><div class="ttdef"><b>Definition:</b> coder.h:190</div></div> 87 </div><!-- fragment --></div><!-- contents --> 88 <!-- start footer part --> 89 <hr class="footer"/><address class="footer"><small> 90 Generated by  <a href="http://www.doxygen.org/index.html"> 91 <img class="footer" src="doxygen.png" alt="doxygen"/> 92 </a> 1.8.14 93 </small></address> 94 </body> 95 </html>