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  51. <a href="#func-members">Functions</a>  </div>
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    53. 

  53. <h1>arm_rfft_q15.c File Reference</h1>  </div>
    54. 

  54. </div>
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  55. <div class="contents">
    56. 

  56. <code>#include &quot;<a class="el" href="arm__math_8h_source.html">arm_math.h</a>&quot;</code><br/>
    57. 

  57. 

  58. <p><a href="arm__rfft__q15_8c_source.html">Go to the source code of this file.</a></p>
    59. 

  59. <table class="memberdecls">
    60. 

  60. <tr><td colspan="2"><h2><a name="func-members"></a>
    61. 

  61. Functions</h2></td></tr>
    62. 

  62. <tr><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="arm__rfft__q15_8c.html#a7c2a21793586f9a69c42140665550e09">arm_split_rfft_q15</a> (<a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pSrc, uint32_t fftLen, <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pATable, <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pBTable, <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pDst, uint32_t modifier)</td></tr>
    63. 

  63. <tr><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="arm__rfft__q15_8c.html#aa72a531dd15a53570dddaf01b62158f4">arm_split_rifft_q15</a> (<a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pSrc, uint32_t fftLen, <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pATable, <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pBTable, <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pDst, uint32_t modifier)</td></tr>
    64. 

  64. <tr><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___r_f_f_t___r_i_f_f_t.html#ga00e615f5db21736ad5b27fb6146f3fc5">arm_rfft_q15</a> (const <a class="el" href="structarm__rfft__instance__q15.html">arm_rfft_instance_q15</a> *S, <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pSrc, <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pDst)</td></tr>
    65. 

  65. </table>
    66. 

  66. <hr/><h2>Function Documentation</h2>
    67. 

  67. <a class="anchor" id="a7c2a21793586f9a69c42140665550e09"></a><!-- doxytag: member="arm_rfft_q15.c::arm_split_rfft_q15" ref="a7c2a21793586f9a69c42140665550e09" args="(q15_t *pSrc, uint32_t fftLen, q15_t *pATable, q15_t *pBTable, q15_t *pDst, uint32_t modifier)" -->
    68. 

  68. <div class="memitem">
    69. 

  69. <div class="memproto">
    70. 

  70.       <table class="memname">
    71. 

  71.         <tr>
    72. 

  72.           <td class="memname">void arm_split_rfft_q15 </td>
    73. 

  73.           <td>(</td>
    74. 

  74.           <td class="paramtype"><a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *&#160;</td>
    75. 

  75.           <td class="paramname"> <em>pSrc</em>, </td>
    76. 

  76.         </tr>
    77. 

  77.         <tr>
    78. 

  78.           <td class="paramkey"></td>
    79. 

  79.           <td></td>
    80. 

  80.           <td class="paramtype">uint32_t&#160;</td>
    81. 

  81.           <td class="paramname"> <em>fftLen</em>, </td>
    82. 

  82.         </tr>
    83. 

  83.         <tr>
    84. 

  84.           <td class="paramkey"></td>
    85. 

  85.           <td></td>
    86. 

  86.           <td class="paramtype"><a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *&#160;</td>
    87. 

  87.           <td class="paramname"> <em>pATable</em>, </td>
    88. 

  88.         </tr>
    89. 

  89.         <tr>
    90. 

  90.           <td class="paramkey"></td>
    91. 

  91.           <td></td>
    92. 

  92.           <td class="paramtype"><a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *&#160;</td>
    93. 

  93.           <td class="paramname"> <em>pBTable</em>, </td>
    94. 

  94.         </tr>
    95. 

  95.         <tr>
    96. 

  96.           <td class="paramkey"></td>
    97. 

  97.           <td></td>
    98. 

  98.           <td class="paramtype"><a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *&#160;</td>
    99. 

  99.           <td class="paramname"> <em>pDst</em>, </td>
    100. 

  100.         </tr>
    101. 

  101.         <tr>
    102. 

  102.           <td class="paramkey"></td>
    103. 

  103.           <td></td>
    104. 

  104.           <td class="paramtype">uint32_t&#160;</td>
    105. 

  105.           <td class="paramname"> <em>modifier</em>&#160;</td>
    106. 

  106.         </tr>
    107. 

  107.         <tr>
    108. 

  108.           <td></td>
    109. 

  109.           <td>)</td>
    110. 

  110.           <td></td><td></td>
    111. 

  111.         </tr>
    112. 

  112.       </table>
    113. 

  113. </div>
    114. 

  114. <div class="memdoc">
    115. 

  115. 

  116. <p>Core Real FFT process. </p>
    117. 

  117. <p>end of RFFT_RIFFT group </p>
    118. 

  118. <dl><dt><b>Parameters:</b></dt><dd>
    119. 

  119.   <table class="params">
    120. 

  120.     <tr><td class="paramname">*pSrc</td><td>points to the input buffer. </td></tr>
    121. 

  121.     <tr><td class="paramname">fftLen</td><td>length of FFT. </td></tr>
    122. 

  122.     <tr><td class="paramname">*pATable</td><td>points to the A twiddle Coef buffer. </td></tr>
    123. 

  123.     <tr><td class="paramname">*pBTable</td><td>points to the B twiddle Coef buffer. </td></tr>
    124. 

  124.     <tr><td class="paramname">*pDst</td><td>points to the output buffer. </td></tr>
    125. 

  125.     <tr><td class="paramname">modifier</td><td>twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. </td></tr>
    126. 

  126.   </table>
    127. 

  127.   </dd>
    128. 

  128. </dl>
    129. 

  129. <dl class="return"><dt><b>Returns:</b></dt><dd>none. The function implements a Real FFT </dd></dl>
    130. 

  130. 

  131. <p>Definition at line <a class="el" href="arm__rfft__q15_8c_source.html#l00143">143</a> of file <a class="el" href="arm__rfft__q15_8c_source.html">arm_rfft_q15.c</a>.</p>
    132. 

  132. 

  133. </div>
    134. 

  134. </div>
    135. 

  135. <a class="anchor" id="aa72a531dd15a53570dddaf01b62158f4"></a><!-- doxytag: member="arm_rfft_q15.c::arm_split_rifft_q15" ref="aa72a531dd15a53570dddaf01b62158f4" args="(q15_t *pSrc, uint32_t fftLen, q15_t *pATable, q15_t *pBTable, q15_t *pDst, uint32_t modifier)" -->
    136. 

  136. <div class="memitem">
    137. 

  137. <div class="memproto">
    138. 

  138.       <table class="memname">
    139. 

  139.         <tr>
    140. 

  140.           <td class="memname">void arm_split_rifft_q15 </td>
    141. 

  141.           <td>(</td>
    142. 

  142.           <td class="paramtype"><a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *&#160;</td>
    143. 

  143.           <td class="paramname"> <em>pSrc</em>, </td>
    144. 

  144.         </tr>
    145. 

  145.         <tr>
    146. 

  146.           <td class="paramkey"></td>
    147. 

  147.           <td></td>
    148. 

  148.           <td class="paramtype">uint32_t&#160;</td>
    149. 

  149.           <td class="paramname"> <em>fftLen</em>, </td>
    150. 

  150.         </tr>
    151. 

  151.         <tr>
    152. 

  152.           <td class="paramkey"></td>
    153. 

  153.           <td></td>
    154. 

  154.           <td class="paramtype"><a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *&#160;</td>
    155. 

  155.           <td class="paramname"> <em>pATable</em>, </td>
    156. 

  156.         </tr>
    157. 

  157.         <tr>
    158. 

  158.           <td class="paramkey"></td>
    159. 

  159.           <td></td>
    160. 

  160.           <td class="paramtype"><a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *&#160;</td>
    161. 

  161.           <td class="paramname"> <em>pBTable</em>, </td>
    162. 

  162.         </tr>
    163. 

  163.         <tr>
    164. 

  164.           <td class="paramkey"></td>
    165. 

  165.           <td></td>
    166. 

  166.           <td class="paramtype"><a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *&#160;</td>
    167. 

  167.           <td class="paramname"> <em>pDst</em>, </td>
    168. 

  168.         </tr>
    169. 

  169.         <tr>
    170. 

  170.           <td class="paramkey"></td>
    171. 

  171.           <td></td>
    172. 

  172.           <td class="paramtype">uint32_t&#160;</td>
    173. 

  173.           <td class="paramname"> <em>modifier</em>&#160;</td>
    174. 

  174.         </tr>
    175. 

  175.         <tr>
    176. 

  176.           <td></td>
    177. 

  177.           <td>)</td>
    178. 

  178.           <td></td><td></td>
    179. 

  179.         </tr>
    180. 

  180.       </table>
    181. 

  181. </div>
    182. 

  182. <div class="memdoc">
    183. 

  183. 

  184. <p>Core Real IFFT process. </p>
    185. 

  185. <dl><dt><b>Parameters:</b></dt><dd>
    186. 

  186.   <table class="params">
    187. 

  187.     <tr><td class="paramdir">[in]</td><td class="paramname">*pSrc</td><td>points to the input buffer. </td></tr>
    188. 

  188.     <tr><td class="paramdir">[in]</td><td class="paramname">fftLen</td><td>length of FFT. </td></tr>
    189. 

  189.     <tr><td class="paramdir">[in]</td><td class="paramname">*pATable</td><td>points to the twiddle Coef A buffer. </td></tr>
    190. 

  190.     <tr><td class="paramdir">[in]</td><td class="paramname">*pBTable</td><td>points to the twiddle Coef B buffer. </td></tr>
    191. 

  191.     <tr><td class="paramdir">[out]</td><td class="paramname">*pDst</td><td>points to the output buffer. </td></tr>
    192. 

  192.     <tr><td class="paramdir">[in]</td><td class="paramname">modifier</td><td>twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. </td></tr>
    193. 

  193.   </table>
    194. 

  194.   </dd>
    195. 

  195. </dl>
    196. 

  196. <dl class="return"><dt><b>Returns:</b></dt><dd>none. The function implements a Real IFFT </dd></dl>
    197. 

  197. 

  198. <p>Definition at line <a class="el" href="arm__rfft__q15_8c_source.html#l00312">312</a> of file <a class="el" href="arm__rfft__q15_8c_source.html">arm_rfft_q15.c</a>.</p>
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