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278 lines
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<p>Instance structure for the floating-point DCT4/IDCT4 function.
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="pub-attribs" name="pub-attribs"></a>
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Data Fields</h2></td></tr>
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<tr class="memitem:a37d49571fe35012087153c093705cd11"><td class="memItemLeft" align="right" valign="top">uint16_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__dct4__instance__f32.html#a37d49571fe35012087153c093705cd11">N</a></td></tr>
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<tr class="separator:a37d49571fe35012087153c093705cd11"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:afa64b1618089e35c2b55cff71cb29715"><td class="memItemLeft" align="right" valign="top">uint16_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__dct4__instance__f32.html#afa64b1618089e35c2b55cff71cb29715">Nby2</a></td></tr>
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<tr class="separator:afa64b1618089e35c2b55cff71cb29715"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a1bf2ed86ef2c3dd83af606bb3f520f2a"><td class="memItemLeft" align="right" valign="top"><a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__dct4__instance__f32.html#a1bf2ed86ef2c3dd83af606bb3f520f2a">normalize</a></td></tr>
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<tr class="separator:a1bf2ed86ef2c3dd83af606bb3f520f2a"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a8292d9775f5c5472f59915649fe3b378"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__dct4__instance__f32.html#a8292d9775f5c5472f59915649fe3b378">pTwiddle</a></td></tr>
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<tr class="separator:a8292d9775f5c5472f59915649fe3b378"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a6978f973c110508f6086347c87eaea7a"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__dct4__instance__f32.html#a6978f973c110508f6086347c87eaea7a">pCosFactor</a></td></tr>
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<tr class="memitem:ad4cd7c85eea3f7c5fff4630bbd979e6a"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structarm__rfft__instance__f32.html">arm_rfft_instance_f32</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__dct4__instance__f32.html#ad4cd7c85eea3f7c5fff4630bbd979e6a">pRfft</a></td></tr>
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<tr class="memitem:ab7bd4d374a1780dea50efd3e7ac220be"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structarm__cfft__radix4__instance__f32.html">arm_cfft_radix4_instance_f32</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__dct4__instance__f32.html#ab7bd4d374a1780dea50efd3e7ac220be">pCfft</a></td></tr>
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</table>
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<h2 class="groupheader">Field Documentation</h2>
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<a id="a37d49571fe35012087153c093705cd11" name="a37d49571fe35012087153c093705cd11"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a37d49571fe35012087153c093705cd11">◆ </a></span>N</h2>
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<td class="memname">uint16_t N</td>
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</div><div class="memdoc">
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<p >length of the DCT4. </p>
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</div>
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<a id="afa64b1618089e35c2b55cff71cb29715" name="afa64b1618089e35c2b55cff71cb29715"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#afa64b1618089e35c2b55cff71cb29715">◆ </a></span>Nby2</h2>
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<td class="memname">uint16_t Nby2</td>
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</div><div class="memdoc">
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<p >half of the length of the DCT4. </p>
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</div>
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<a id="a1bf2ed86ef2c3dd83af606bb3f520f2a" name="a1bf2ed86ef2c3dd83af606bb3f520f2a"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a1bf2ed86ef2c3dd83af606bb3f520f2a">◆ </a></span>normalize</h2>
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<td class="memname"><a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> normalize</td>
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<p >normalizing factor. </p>
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<a id="ab7bd4d374a1780dea50efd3e7ac220be" name="ab7bd4d374a1780dea50efd3e7ac220be"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ab7bd4d374a1780dea50efd3e7ac220be">◆ </a></span>pCfft</h2>
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<td class="memname"><a class="el" href="structarm__cfft__radix4__instance__f32.html">arm_cfft_radix4_instance_f32</a>* pCfft</td>
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</div><div class="memdoc">
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<p >points to the complex FFT instance. </p>
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<a id="a6978f973c110508f6086347c87eaea7a" name="a6978f973c110508f6086347c87eaea7a"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a6978f973c110508f6086347c87eaea7a">◆ </a></span>pCosFactor</h2>
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<td class="memname">const <a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a>* pCosFactor</td>
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</div><div class="memdoc">
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<p >points to the cosFactor table. </p>
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<a id="ad4cd7c85eea3f7c5fff4630bbd979e6a" name="ad4cd7c85eea3f7c5fff4630bbd979e6a"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ad4cd7c85eea3f7c5fff4630bbd979e6a">◆ </a></span>pRfft</h2>
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<td class="memname"><a class="el" href="structarm__rfft__instance__f32.html">arm_rfft_instance_f32</a>* pRfft</td>
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<p >points to the real FFT instance. </p>
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<a id="a8292d9775f5c5472f59915649fe3b378" name="a8292d9775f5c5472f59915649fe3b378"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a8292d9775f5c5472f59915649fe3b378">◆ </a></span>pTwiddle</h2>
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<td class="memname">const <a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a>* pTwiddle</td>
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</div><div class="memdoc">
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<p >points to the twiddle factor table. </p>
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