48 lines
1.5 KiB
C
48 lines
1.5 KiB
C
/*
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* Project 25 IMBE Encoder/Decoder Fixed-Point implementation
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* Developed by Pavel Yazev E-mail: pyazev@gmail.com
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* Version 1.0 (c) Copyright 2009
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*
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* This is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3, or (at your option)
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* any later version.
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*
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* The software is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this; see the file COPYING. If not, write to the Free
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* Software Foundation, Inc., 51 Franklin Street, Boston, MA
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* 02110-1301, USA.
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*/
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#ifndef _PE_LPF
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#define _PE_LPF
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//-----------------------------------------------------------------------------
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// PURPOSE:
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// Low-pass filter for pitch estimator
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//
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//
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// INPUT:
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// *sigin - pointer to input signal buffer
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// *sigout - pointer to output signal buffer
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// *mem - pointer to filter's memory element
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// len - number of input signal samples
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//
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// OUTPUT:
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// None
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//
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// RETURN:
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// Saved filter state in mem
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//
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//-----------------------------------------------------------------------------
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void pe_lpf(Word16 *sigin, Word16 *sigout, Word16 *mem, Word16 len);
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#endif
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