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    114. 

  114. <div class="title">Transform Functions</div>  </div>
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  120. <tr class="memitem:group___complex_f_f_t"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___complex_f_f_t.html">Complex FFT Functions</a></td></tr>
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  122. <tr class="memitem:group___radix8___c_f_f_t___c_i_f_f_t"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___radix8___c_f_f_t___c_i_f_f_t.html">Radix-8 Complex FFT Functions</a></td></tr>
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  123. <tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
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  124. <tr class="memitem:group___d_c_t4___i_d_c_t4"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___d_c_t4___i_d_c_t4.html">DCT Type IV Functions</a></td></tr>
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  125. <tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
    126. 

  126. <tr class="memitem:group___fast"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___fast.html">Real FFT Functions</a></td></tr>
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  127. <tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
    128. 

  128. <tr class="memitem:group___c_f_f_t___c_i_f_f_t"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___c_f_f_t___c_i_f_f_t.html">Complex FFT Tables</a></td></tr>
    129. 

  129. <tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
    130. 

  130. <tr class="memitem:group___real_f_f_t"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___real_f_f_t.html">RealFFT</a></td></tr>
    131. 

  131. <tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
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  132. </table><table class="memberdecls">
    133. 

  133. <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
    134. 

  134. Functions</h2></td></tr>
    135. 

  135. <tr class="memitem:gae239ddf995d1607115f9e84d5c069b9c"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__group_transforms.html#gae239ddf995d1607115f9e84d5c069b9c">arm_radix4_butterfly_f32</a> (<a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pSrc, uint16_t fftLen, <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pCoef, uint16_t twidCoefModifier)</td></tr>
    136. 

  136. <tr class="separator:gae239ddf995d1607115f9e84d5c069b9c"><td class="memSeparator" colspan="2">&#160;</td></tr>
    137. 

  137. <tr class="memitem:ga6cfdb6bdc66b13732ef2351caf98fdbb"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__group_transforms.html#ga6cfdb6bdc66b13732ef2351caf98fdbb">arm_split_rfft_f32</a> (<a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pSrc, uint32_t fftLen, <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pATable, <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pBTable, <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pDst, uint32_t modifier)</td></tr>
    138. 

  138. <tr class="memdesc:ga6cfdb6bdc66b13732ef2351caf98fdbb"><td class="mdescLeft">&#160;</td><td class="mdescRight">Core Real FFT process.  <a href="#ga6cfdb6bdc66b13732ef2351caf98fdbb"></a><br/></td></tr>
    139. 

  139. <tr class="separator:ga6cfdb6bdc66b13732ef2351caf98fdbb"><td class="memSeparator" colspan="2">&#160;</td></tr>
    140. 

  140. </table>
    141. 

  141. <a name="details" id="details"></a><h2 class="groupheader">Description</h2>
    142. 

  142. <h2 class="groupheader">Function Documentation</h2>
    143. 

  143. <a class="anchor" id="gae239ddf995d1607115f9e84d5c069b9c"></a>
    144. 

  144. <div class="memitem">
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  145. <div class="memproto">
    146. 

  146.       <table class="memname">
    147. 

  147.         <tr>
    148. 

  148.           <td class="memname">void arm_radix4_butterfly_f32 </td>
    149. 

  149.           <td>(</td>
    150. 

  150.           <td class="paramtype"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *&#160;</td>
    151. 

  151.           <td class="paramname"><em>pSrc</em>, </td>
    152. 

  152.         </tr>
    153. 

  153.         <tr>
    154. 

  154.           <td class="paramkey"></td>
    155. 

  155.           <td></td>
    156. 

  156.           <td class="paramtype">uint16_t&#160;</td>
    157. 

  157.           <td class="paramname"><em>fftLen</em>, </td>
    158. 

  158.         </tr>
    159. 

  159.         <tr>
    160. 

  160.           <td class="paramkey"></td>
    161. 

  161.           <td></td>
    162. 

  162.           <td class="paramtype"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *&#160;</td>
    163. 

  163.           <td class="paramname"><em>pCoef</em>, </td>
    164. 

  164.         </tr>
    165. 

  165.         <tr>
    166. 

  166.           <td class="paramkey"></td>
    167. 

  167.           <td></td>
    168. 

  168.           <td class="paramtype">uint16_t&#160;</td>
    169. 

  169.           <td class="paramname"><em>twidCoefModifier</em>&#160;</td>
    170. 

  170.         </tr>
    171. 

  171.         <tr>
    172. 

  172.           <td></td>
    173. 

  173.           <td>)</td>
    174. 

  174.           <td></td><td></td>
    175. 

  175.         </tr>
    176. 

  176.       </table>
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  177. </div><div class="memdoc">
    178. 

  178. 

  179. <p>Referenced by <a class="el" href="group___complex_f_f_t.html#ga521f670cd9c571bc61aff9bec89f4c26">arm_cfft_radix4_f32()</a>, and <a class="el" href="group___real_f_f_t.html#ga3df1766d230532bc068fc4ed69d0fcdc">arm_rfft_f32()</a>.</p>
    180. 

  180. 

  181. </div>
    182. 

  182. </div>
    183. 

  183. <a class="anchor" id="ga6cfdb6bdc66b13732ef2351caf98fdbb"></a>
    184. 

  184. <div class="memitem">
    185. 

  185. <div class="memproto">
    186. 

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

  187.         <tr>
    188. 

  188.           <td class="memname">void arm_split_rfft_f32 </td>
    189. 

  189.           <td>(</td>
    190. 

  190.           <td class="paramtype"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *&#160;</td>
    191. 

  191.           <td class="paramname"><em>pSrc</em>, </td>
    192. 

  192.         </tr>
    193. 

  193.         <tr>
    194. 

  194.           <td class="paramkey"></td>
    195. 

  195.           <td></td>
    196. 

  196.           <td class="paramtype">uint32_t&#160;</td>
    197. 

  197.           <td class="paramname"><em>fftLen</em>, </td>
    198. 

  198.         </tr>
    199. 

  199.         <tr>
    200. 

  200.           <td class="paramkey"></td>
    201. 

  201.           <td></td>
    202. 

  202.           <td class="paramtype"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *&#160;</td>
    203. 

  203.           <td class="paramname"><em>pATable</em>, </td>
    204. 

  204.         </tr>
    205. 

  205.         <tr>
    206. 

  206.           <td class="paramkey"></td>
    207. 

  207.           <td></td>
    208. 

  208.           <td class="paramtype"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *&#160;</td>
    209. 

  209.           <td class="paramname"><em>pBTable</em>, </td>
    210. 

  210.         </tr>
    211. 

  211.         <tr>
    212. 

  212.           <td class="paramkey"></td>
    213. 

  213.           <td></td>
    214. 

  214.           <td class="paramtype"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *&#160;</td>
    215. 

  215.           <td class="paramname"><em>pDst</em>, </td>
    216. 

  216.         </tr>
    217. 

  217.         <tr>
    218. 

  218.           <td class="paramkey"></td>
    219. 

  219.           <td></td>
    220. 

  220.           <td class="paramtype">uint32_t&#160;</td>
    221. 

  221.           <td class="paramname"><em>modifier</em>&#160;</td>
    222. 

  222.         </tr>
    223. 

  223.         <tr>
    224. 

  224.           <td></td>
    225. 

  225.           <td>)</td>
    226. 

  226.           <td></td><td></td>
    227. 

  227.         </tr>
    228. 

  228.       </table>
    229. 

  229. </div><div class="memdoc">
    230. 

  230. <p>end of RealFFT group </p>
    231. 

  231. <dl class="params"><dt>Parameters</dt><dd>
    232. 

  232.   <table class="params">
    233. 

  233.     <tr><td class="paramdir">[in]</td><td class="paramname">*pSrc</td><td>points to the input buffer. </td></tr>
    234. 

  234.     <tr><td class="paramdir">[in]</td><td class="paramname">fftLen</td><td>length of FFT. </td></tr>
    235. 

  235.     <tr><td class="paramdir">[in]</td><td class="paramname">*pATable</td><td>points to the twiddle Coef A buffer. </td></tr>
    236. 

  236.     <tr><td class="paramdir">[in]</td><td class="paramname">*pBTable</td><td>points to the twiddle Coef B buffer. </td></tr>
    237. 

  237.     <tr><td class="paramdir">[out]</td><td class="paramname">*pDst</td><td>points to the output buffer. </td></tr>
    238. 

  238.     <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>
    239. 

  239.   </table>
    240. 

  240.   </dd>
    241. 

  241. </dl>
    242. 

  242. <dl class="section return"><dt>Returns</dt><dd>none. </dd></dl>
    243. 

  243. 

  244. <p>Referenced by <a class="el" href="group___real_f_f_t.html#ga3df1766d230532bc068fc4ed69d0fcdc">arm_rfft_f32()</a>.</p>
    245. 

  245. 

  246. </div>
    247. 

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    248. 

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    249. 

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    250. 

  250. <!-- start footer part -->
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    252. 

  252.   <ul>
    253. 

  253.     <li class="footer">Generated on Tue Sep 23 2014 18:52:44 for CMSIS-DSP by ARM Ltd. All rights reserved.
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