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1 /* Copyright (c) 2009-2010 Xiph.Org Foundation
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2 Written by Jean-Marc Valin */
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3 /*
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4 Redistribution and use in source and binary forms, with or without
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5 modification, are permitted provided that the following conditions
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6 are met:
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7
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8 - Redistributions of source code must retain the above copyright
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9 notice, this list of conditions and the following disclaimer.
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10
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11 - Redistributions in binary form must reproduce the above copyright
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12 notice, this list of conditions and the following disclaimer in the
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13 documentation and/or other materials provided with the distribution.
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14
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15 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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16 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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17 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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18 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
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19 OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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20 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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21 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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22 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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23 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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24 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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25 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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26 */
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27
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28 #ifndef PLC_H
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29 #define PLC_H
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30
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31 #include "arch.h"
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32 #include "cpu_support.h"
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33
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34 #if defined(OPUS_X86_MAY_HAVE_SSE4_1)
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35 #include "x86/celt_lpc_sse.h"
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36 #endif
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37
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38 #define LPC_ORDER 24
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39
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40 void _celt_lpc(opus_val16 *_lpc, const opus_val32 *ac, int p);
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41
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42 void celt_fir_c(
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43 const opus_val16 *x,
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44 const opus_val16 *num,
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45 opus_val16 *y,
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46 int N,
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47 int ord,
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48 int arch);
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49
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50 #if !defined(OVERRIDE_CELT_FIR)
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51 #define celt_fir(x, num, y, N, ord, arch) \
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52 (celt_fir_c(x, num, y, N, ord, arch))
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53 #endif
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54
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55 void celt_iir(const opus_val32 *x,
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56 const opus_val16 *den,
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57 opus_val32 *y,
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58 int N,
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59 int ord,
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60 opus_val16 *mem,
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61 int arch);
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62
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63 int _celt_autocorr(const opus_val16 *x, opus_val32 *ac,
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64 const opus_val16 *window, int overlap, int lag, int n, int arch);
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65
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66 #endif /* PLC_H */
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