Chris@69: /* Copyright (c) 2009-2010 Xiph.Org Foundation
Chris@69:    Written by Jean-Marc Valin */
Chris@69: /*
Chris@69:    Redistribution and use in source and binary forms, with or without
Chris@69:    modification, are permitted provided that the following conditions
Chris@69:    are met:
Chris@69: 
Chris@69:    - Redistributions of source code must retain the above copyright
Chris@69:    notice, this list of conditions and the following disclaimer.
Chris@69: 
Chris@69:    - Redistributions in binary form must reproduce the above copyright
Chris@69:    notice, this list of conditions and the following disclaimer in the
Chris@69:    documentation and/or other materials provided with the distribution.
Chris@69: 
Chris@69:    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
Chris@69:    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
Chris@69:    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
Chris@69:    A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
Chris@69:    OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
Chris@69:    EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
Chris@69:    PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
Chris@69:    PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
Chris@69:    LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
Chris@69:    NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
Chris@69:    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Chris@69: */
Chris@69: 
Chris@69: #ifndef PLC_H
Chris@69: #define PLC_H
Chris@69: 
Chris@69: #include "arch.h"
Chris@69: #include "cpu_support.h"
Chris@69: 
Chris@69: #if defined(OPUS_X86_MAY_HAVE_SSE4_1)
Chris@69: #include "x86/celt_lpc_sse.h"
Chris@69: #endif
Chris@69: 
Chris@69: #define LPC_ORDER 24
Chris@69: 
Chris@69: void _celt_lpc(opus_val16 *_lpc, const opus_val32 *ac, int p);
Chris@69: 
Chris@69: void celt_fir_c(
Chris@69:          const opus_val16 *x,
Chris@69:          const opus_val16 *num,
Chris@69:          opus_val16 *y,
Chris@69:          int N,
Chris@69:          int ord,
Chris@69:          int arch);
Chris@69: 
Chris@69: #if !defined(OVERRIDE_CELT_FIR)
Chris@69: #define celt_fir(x, num, y, N, ord, arch) \
Chris@69:     (celt_fir_c(x, num, y, N, ord, arch))
Chris@69: #endif
Chris@69: 
Chris@69: void celt_iir(const opus_val32 *x,
Chris@69:          const opus_val16 *den,
Chris@69:          opus_val32 *y,
Chris@69:          int N,
Chris@69:          int ord,
Chris@69:          opus_val16 *mem,
Chris@69:          int arch);
Chris@69: 
Chris@69: int _celt_autocorr(const opus_val16 *x, opus_val32 *ac,
Chris@69:          const opus_val16 *window, int overlap, int lag, int n, int arch);
Chris@69: 
Chris@69: #endif /* PLC_H */