1*a58d3d2aSXin Li /* Copyright (c) 2009-2010 Xiph.Org Foundation 2*a58d3d2aSXin Li Written by Jean-Marc Valin */ 3*a58d3d2aSXin Li /* 4*a58d3d2aSXin Li Redistribution and use in source and binary forms, with or without 5*a58d3d2aSXin Li modification, are permitted provided that the following conditions 6*a58d3d2aSXin Li are met: 7*a58d3d2aSXin Li 8*a58d3d2aSXin Li - Redistributions of source code must retain the above copyright 9*a58d3d2aSXin Li notice, this list of conditions and the following disclaimer. 10*a58d3d2aSXin Li 11*a58d3d2aSXin Li - Redistributions in binary form must reproduce the above copyright 12*a58d3d2aSXin Li notice, this list of conditions and the following disclaimer in the 13*a58d3d2aSXin Li documentation and/or other materials provided with the distribution. 14*a58d3d2aSXin Li 15*a58d3d2aSXin Li THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16*a58d3d2aSXin Li ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17*a58d3d2aSXin Li LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 18*a58d3d2aSXin Li A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER 19*a58d3d2aSXin Li OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 20*a58d3d2aSXin Li EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21*a58d3d2aSXin Li PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 22*a58d3d2aSXin Li PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 23*a58d3d2aSXin Li LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 24*a58d3d2aSXin Li NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 25*a58d3d2aSXin Li SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26*a58d3d2aSXin Li */ 27*a58d3d2aSXin Li 28*a58d3d2aSXin Li #ifndef PLC_H 29*a58d3d2aSXin Li #define PLC_H 30*a58d3d2aSXin Li 31*a58d3d2aSXin Li #include "arch.h" 32*a58d3d2aSXin Li #include "cpu_support.h" 33*a58d3d2aSXin Li 34*a58d3d2aSXin Li #if defined(OPUS_X86_MAY_HAVE_SSE4_1) 35*a58d3d2aSXin Li #include "x86/celt_lpc_sse.h" 36*a58d3d2aSXin Li #endif 37*a58d3d2aSXin Li 38*a58d3d2aSXin Li #define CELT_LPC_ORDER 24 39*a58d3d2aSXin Li 40*a58d3d2aSXin Li void _celt_lpc(opus_val16 *_lpc, const opus_val32 *ac, int p); 41*a58d3d2aSXin Li 42*a58d3d2aSXin Li void celt_fir_c( 43*a58d3d2aSXin Li const opus_val16 *x, 44*a58d3d2aSXin Li const opus_val16 *num, 45*a58d3d2aSXin Li opus_val16 *y, 46*a58d3d2aSXin Li int N, 47*a58d3d2aSXin Li int ord, 48*a58d3d2aSXin Li int arch); 49*a58d3d2aSXin Li 50*a58d3d2aSXin Li #if !defined(OVERRIDE_CELT_FIR) 51*a58d3d2aSXin Li #define celt_fir(x, num, y, N, ord, arch) \ 52*a58d3d2aSXin Li (celt_fir_c(x, num, y, N, ord, arch)) 53*a58d3d2aSXin Li #endif 54*a58d3d2aSXin Li 55*a58d3d2aSXin Li void celt_iir(const opus_val32 *x, 56*a58d3d2aSXin Li const opus_val16 *den, 57*a58d3d2aSXin Li opus_val32 *y, 58*a58d3d2aSXin Li int N, 59*a58d3d2aSXin Li int ord, 60*a58d3d2aSXin Li opus_val16 *mem, 61*a58d3d2aSXin Li int arch); 62*a58d3d2aSXin Li 63*a58d3d2aSXin Li int _celt_autocorr(const opus_val16 *x, opus_val32 *ac, 64*a58d3d2aSXin Li const opus_val16 *window, int overlap, int lag, int n, int arch); 65*a58d3d2aSXin Li 66*a58d3d2aSXin Li #endif /* PLC_H */ 67