44 lines
1.4 KiB
C
44 lines
1.4 KiB
C
/*---------------------------------------------------------------------------*\
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FILE........: interp.h
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AUTHOR......: David Rowe
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DATE CREATED: 9/10/09
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Interpolation of 20ms frames to 10ms frames.
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\*---------------------------------------------------------------------------*/
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/*
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Copyright (C) 2009 David Rowe
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All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License version 2.1, as
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published by the Free Software Foundation. This program is
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distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __INTERP__
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#define __INTERP__
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#include "kiss_fft.h"
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void interpolate(MODEL *interp, MODEL *prev, MODEL *next);
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void interpolate_lsp(kiss_fft_cfg fft_dec_cfg,
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MODEL *interp, MODEL *prev, MODEL *next,
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float *prev_lsps, float prev_e,
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float *next_lsps, float next_e,
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float *ak_interp, float *lsps_interp);
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void interp_Wo(MODEL *interp, MODEL *prev, MODEL *next);
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float interp_energy(float prev, float next);
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void interpolate_lsp_ver2(float interp[], float prev[], float next[], float weight);
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#endif
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