cannam@154: /* Copyright (c) 2009-2010 Xiph.Org Foundation
cannam@154:    Written by Jean-Marc Valin */
cannam@154: /*
cannam@154:    Redistribution and use in source and binary forms, with or without
cannam@154:    modification, are permitted provided that the following conditions
cannam@154:    are met:
cannam@154: 
cannam@154:    - Redistributions of source code must retain the above copyright
cannam@154:    notice, this list of conditions and the following disclaimer.
cannam@154: 
cannam@154:    - Redistributions in binary form must reproduce the above copyright
cannam@154:    notice, this list of conditions and the following disclaimer in the
cannam@154:    documentation and/or other materials provided with the distribution.
cannam@154: 
cannam@154:    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
cannam@154:    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
cannam@154:    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
cannam@154:    A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
cannam@154:    OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
cannam@154:    EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
cannam@154:    PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
cannam@154:    PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
cannam@154:    LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
cannam@154:    NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
cannam@154:    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
cannam@154: */
cannam@154: 
cannam@154: #ifndef PLC_H
cannam@154: #define PLC_H
cannam@154: 
cannam@154: #include "arch.h"
cannam@154: #include "cpu_support.h"
cannam@154: 
cannam@154: #if defined(OPUS_X86_MAY_HAVE_SSE4_1)
cannam@154: #include "x86/celt_lpc_sse.h"
cannam@154: #endif
cannam@154: 
cannam@154: #define LPC_ORDER 24
cannam@154: 
cannam@154: void _celt_lpc(opus_val16 *_lpc, const opus_val32 *ac, int p);
cannam@154: 
cannam@154: void celt_fir_c(
cannam@154:          const opus_val16 *x,
cannam@154:          const opus_val16 *num,
cannam@154:          opus_val16 *y,
cannam@154:          int N,
cannam@154:          int ord,
cannam@154:          int arch);
cannam@154: 
cannam@154: #if !defined(OVERRIDE_CELT_FIR)
cannam@154: #define celt_fir(x, num, y, N, ord, arch) \
cannam@154:     (celt_fir_c(x, num, y, N, ord, arch))
cannam@154: #endif
cannam@154: 
cannam@154: void celt_iir(const opus_val32 *x,
cannam@154:          const opus_val16 *den,
cannam@154:          opus_val32 *y,
cannam@154:          int N,
cannam@154:          int ord,
cannam@154:          opus_val16 *mem,
cannam@154:          int arch);
cannam@154: 
cannam@154: int _celt_autocorr(const opus_val16 *x, opus_val32 *ac,
cannam@154:          const opus_val16 *window, int overlap, int lag, int n, int arch);
cannam@154: 
cannam@154: #endif /* PLC_H */