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authorerdgeist@erdgeist.org <erdgeist@bauklotz.fritz.box>2019-07-04 23:26:09 +0200
committererdgeist@erdgeist.org <erdgeist@bauklotz.fritz.box>2019-07-04 23:26:09 +0200
commitf02dfce6e6c34b3d8a7b8a0e784b506178e331fa (patch)
tree45556e6104242d4702689760433d7321ae74ec17 /interp.h
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1/*---------------------------------------------------------------------------*\
2
3 FILE........: interp.h
4 AUTHOR......: David Rowe
5 DATE CREATED: 9/10/09
6
7 Interpolation of 20ms frames to 10ms frames.
8
9\*---------------------------------------------------------------------------*/
10
11/*
12 Copyright (C) 2009 David Rowe
13
14 All rights reserved.
15
16 This program is free software; you can redistribute it and/or modify
17 it under the terms of the GNU Lesser General Public License version 2.1, as
18 published by the Free Software Foundation. This program is
19 distributed in the hope that it will be useful, but WITHOUT ANY
20 WARRANTY; without even the implied warranty of MERCHANTABILITY or
21 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
22 License for more details.
23
24 You should have received a copy of the GNU Lesser General Public License
25 along with this program; if not, see <http://www.gnu.org/licenses/>.
26*/
27
28#ifndef __INTERP__
29#define __INTERP__
30
31#include "kiss_fft.h"
32
33void interpolate(MODEL *interp, MODEL *prev, MODEL *next);
34void interpolate_lsp(kiss_fft_cfg fft_dec_cfg,
35 MODEL *interp, MODEL *prev, MODEL *next,
36 float *prev_lsps, float prev_e,
37 float *next_lsps, float next_e,
38 float *ak_interp, float *lsps_interp, float Wo_min);
39void interp_Wo(MODEL *interp, MODEL *prev, MODEL *next, float Wo_min);
40void interp_Wo2(MODEL *interp, MODEL *prev, MODEL *next, float weight, float Wo_min);
41float interp_energy(float prev, float next);
42float interp_energy2(float prev, float next, float weight);
43void interpolate_lsp_ver2(float interp[], float prev[], float next[], float weight, int order);
44
45#endif