1 files changed, 47 insertions, 0 deletions
diff --git a/src/interp.h b/src/interp.h
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+/*---------------------------------------------------------------------------*\
+
+  FILE........: interp.h
+  AUTHOR......: David Rowe
+  DATE CREATED: 9/10/09
+
+  Interpolation of 20ms frames to 10ms frames.
+
+\*---------------------------------------------------------------------------*/
+
+/*
+  Copyright (C) 2009 David Rowe
+
+  All rights reserved.
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU Lesser General Public License version 2.1, as
+  published by the Free Software Foundation.  This program is
+  distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+  License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with this program; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __INTERP__
+#define __INTERP__
+
+#include "defines.h"
+#include "kiss_fft.h"
+
+void interpolate(MODEL *interp, MODEL *prev, MODEL *next);
+void interpolate_lsp(kiss_fft_cfg fft_dec_cfg, MODEL *interp, MODEL *prev,
+                     MODEL *next, float *prev_lsps, float prev_e,
+                     float *next_lsps, float next_e, float *ak_interp,
+                     float *lsps_interp, float Wo_min);
+void interp_Wo(MODEL *interp, MODEL *prev, MODEL *next, float Wo_min);
+void interp_Wo2(MODEL *interp, MODEL *prev, MODEL *next, float weight,
+                float Wo_min);
+float interp_energy(float prev, float next);
+float interp_energy2(float prev, float next, float weight);
+void interpolate_lsp_ver2(float interp[], float prev[], float next[],
+                          float weight, int order);
+
+#endif