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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/*****************************************************************************/</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment">/* BroadVoice(R)16 (BV16) Floating-Point ANSI-C Source Code                  */</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment">/* Revision Date: August 19, 2009                                            */</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment">/* Version 1.0                                                               */</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment">/*****************************************************************************/</span></div><div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;</div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment">/*****************************************************************************/</span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment">/* Copyright 2000-2009 Broadcom Corporation                                  */</span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment">/*                                                                           */</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment">/* This software is provided under the GNU Lesser General Public License,    */</span></div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment">/* version 2.1, as published by the Free Software Foundation (&quot;LGPL&quot;).       */</span></div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment">/* This program is distributed in the hope that it will be useful, but       */</span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment">/* WITHOUT ANY SUPPORT OR WARRANTY; without even the implied warranty of     */</span></div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment">/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the LGPL for     */</span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment">/* more details.  A copy of the LGPL is available at                         */</span></div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment">/* http://www.broadcom.com/licenses/LGPLv2.1.php,                            */</span></div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="comment">/* or by writing to the Free Software Foundation, Inc.,                      */</span></div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="comment">/* 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.                 */</span></div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="comment">/*****************************************************************************/</span></div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;</div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;</div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="comment">/*****************************************************************************</span></div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="comment">  bv16externs.c : BV16 Fixed-Point externs</span></div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="comment">  $Log: bv16externs.h,v $</span></div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="comment">  Revision 1.1.1.1  2009/11/19 12:10:48  steveu</span></div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="comment">  Start from Broadcom&#39;s code</span></div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="comment">  Revision 1.1.1.1  2009/11/17 14:06:02  steveu</span></div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="comment">  start</span></div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="comment">******************************************************************************/</span></div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;</div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;<span class="preprocessor">#include &quot;typedef.h&quot;</span></div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<span class="preprocessor">#include &quot;bv16cnst.h&quot;</span></div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;<span class="preprocessor">#include &quot;bvcommon.h&quot;</span></div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;</div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;<span class="comment">/* POINTERS */</span></div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;<span class="keyword">extern</span> <span class="keyword">const</span> Float bv16_winl[WINSZ];</div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;<span class="keyword">extern</span> <span class="keyword">const</span> Float bv16_sstwin[1 + LPCO];</div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;<span class="keyword">extern</span> <span class="keyword">const</span> Float bv16_gfsz[];</div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;<span class="keyword">extern</span> <span class="keyword">const</span> Float bv16_gfsp[];</div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;<span class="keyword">extern</span> <span class="keyword">const</span> <span class="keywordtype">int</span> bv16_idxord[];</div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;<span class="keyword">extern</span> <span class="keyword">const</span> Float bv16_hpfa[];</div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;<span class="keyword">extern</span> <span class="keyword">const</span> Float bv16_hpfb[];</div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;<span class="keyword">extern</span> <span class="keyword">const</span> Float bv16_adf[];</div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;<span class="keyword">extern</span> <span class="keyword">const</span> Float bv16_bdf[];</div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;<span class="keyword">extern</span> <span class="keyword">const</span> Float bv16_x[];</div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;<span class="keyword">extern</span> <span class="keyword">const</span> Float bv16_x2[];</div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;<span class="keyword">extern</span> <span class="keyword">const</span> Float bv16_MPTH[];</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;<span class="comment">/* LSP Quantization */</span></div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;<span class="keyword">extern</span> <span class="keyword">const</span> Float bv16_lspecb1[LSPECBSZ1*LPCO];</div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;<span class="keyword">extern</span> <span class="keyword">const</span> Float bv16_lspecb2[LSPECBSZ2*LPCO];</div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;<span class="keyword">extern</span> <span class="keyword">const</span> Float bv16_lspmean[LPCO];</div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;<span class="keyword">extern</span> <span class="keyword">const</span> Float bv16_lspp[LSPPORDER*LPCO];</div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;</div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;<span class="comment">/* Pitch Predictor Codebook */</span></div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;<span class="keyword">extern</span> <span class="keyword">const</span> Float bv16_pp9cb[PPCBSZ*9];</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;<span class="comment">/* Log-Gain Quantization */</span></div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;<span class="keyword">extern</span> <span class="keyword">const</span> Float bv16_lgpecb[LGPECBSZ];</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;<span class="keyword">extern</span> <span class="keyword">const</span> Float bv16_lgp[LGPORDER];</div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;<span class="keyword">extern</span> <span class="keyword">const</span> Float bv16_lgmean;</div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;</div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;<span class="comment">/* Log-Gain Limitation */</span></div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;<span class="keyword">extern</span> <span class="keyword">const</span> Float bv16_lgclimit[];</div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;<span class="comment">/* Excitation Codebook */</span></div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;<span class="keyword">extern</span> <span class="keyword">const</span> Float bv16_cccb[CBSZ*VDIM];</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;</div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;<span class="keyword">extern</span> <span class="keyword">const</span> Float bv16_lgpecb_nh[];</div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;</div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;<span class="comment">/* Function Prototypes */</span></div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;<span class="keyword">extern</span> Float estlevel(Float lg,</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;                      Float *level,</div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;                      Float *lmax,</div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;                      Float *lmin,</div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;                      Float *lmean,</div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;                      Float *x1,</div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;                      int16_t ngfae,</div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;                      int16_t nggalgc,</div><div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;                      Float *estl_alpha_min);</div><div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;</div><div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;<span class="keyword">extern</span> <span class="keywordtype">void</span> excdec_w_LT_synth(</div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;        Float *ltsym, <span class="comment">/* long-term synthesis filter memory at decoder*/</span></div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;        int16_t *idx,   <span class="comment">/* excitation codebook index array for current subframe */</span></div><div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;        Float gainq,  <span class="comment">/* quantized linear gains for sub-subframes */</span></div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;        Float *b,     <span class="comment">/* coefficient of 3-tap pitch predictor */</span></div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;        int16_t pp,     <span class="comment">/* pitch period */</span></div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;        <span class="keyword">const</span> Float *cb,    <span class="comment">/* scalar quantizer codebook */</span></div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;        Float *EE);</div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;</div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;<span class="keyword">extern</span> Float gaindec(Float *lgq,</div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;                     int16_t gidx,</div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;                     Float *lgpm,</div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;                     Float *prevlg,             <span class="comment">/* previous log gains (last two frames) */</span></div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;                     Float level,</div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;                     int16_t *nggalgc,</div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;                     Float *lg_el);</div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;</div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;<span class="keyword">extern</span> Float gaindec_fe(Float lgq_last,</div><div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;                        Float *lgpm);</div><div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;</div><div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;<span class="keywordtype">void</span> gainplc(Float E,</div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;             Float *lgeqm,</div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;             Float *lgqm);</div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;</div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;<span class="keyword">extern</span> <span class="keywordtype">void</span> lspdec(</div><div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;        Float *lspq,</div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;        int16_t *lspidx,</div><div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;        Float *lsppm,</div><div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;        Float *lspq_last);</div><div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;</div><div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;<span class="keyword">extern</span> <span class="keywordtype">void</span> lspplc(</div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;        Float *lspq,</div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;        Float *lsppm);</div><div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;</div><div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;<span class="keyword">extern</span> <span class="keywordtype">int</span> coarsepitch(</div><div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;        Float *xw,</div><div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;        Float *xwd,</div><div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;        Float *dfm,</div><div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;        <span class="keywordtype">int</span>     cpplast);</div><div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;</div><div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;<span class="keyword">extern</span> <span class="keywordtype">int</span> refinepitch(</div><div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;        Float *x,</div><div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;        <span class="keywordtype">int</span> cpp,</div><div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;        Float *ppt);</div><div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;</div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;<span class="keyword">extern</span> <span class="keywordtype">int</span> pitchtapquan(</div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;        Float *x,</div><div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;        <span class="keywordtype">int</span>     pp,</div><div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;        Float *b,</div><div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;        Float *re);</div><div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;</div><div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;<span class="keyword">extern</span> <span class="keywordtype">void</span> excquan(</div><div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;        int16_t *idx,   <span class="comment">/* quantizer codebook index for uq[] vector */</span></div><div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;        Float *s,     <span class="comment">/* input speech signal vector */</span></div><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;        Float *aq,    <span class="comment">/* short-term predictor coefficient array */</span></div><div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;        Float *fsz,   <span class="comment">/* short-term noise feedback filter - numerator */</span></div><div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;        Float *fsp,   <span class="comment">/* short-term noise feedback filter - denominator */</span></div><div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;        Float *b,     <span class="comment">/* coefficient of 3-tap pitch predictor */</span></div><div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;        Float beta,   <span class="comment">/* coefficient of 1-tap LT noise feedback filter */</span></div><div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;        Float *stsym,  <span class="comment">/* filter memory before filtering of current vector */</span></div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;        Float *ltsym, <span class="comment">/* long-term synthesis filter memory */</span></div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;        Float *ltnfm, <span class="comment">/* long-term noise feedback filter memory */</span></div><div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;        Float *stnfz,</div><div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;        Float *stnfp,</div><div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;        Float *cb,    <span class="comment">/* scalar quantizer codebook */</span></div><div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;        <span class="keywordtype">int</span> pp);    <span class="comment">/* pitch period (# of 8 kHz samples) */</span></div><div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;</div><div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;<span class="keyword">extern</span> <span class="keywordtype">int</span> gainquan(</div><div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;        Float *gainq,</div><div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;        Float lg,</div><div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;        Float *lgpm,</div><div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;        Float *prevlg,</div><div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;        Float level);</div><div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;</div><div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;<span class="keyword">extern</span> <span class="keywordtype">void</span> lspquan(</div><div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;        Float *lspq,</div><div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;        int16_t *lspidx,</div><div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;        Float *lsp,</div><div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;        Float *lsppm);</div><div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;</div><div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;<span class="keyword">extern</span> <span class="keywordtype">void</span> bv16_pp3dec(int16_t idx, Float *b);</div></div><!-- fragment --></div><!-- contents -->
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