73 lines
2.4 KiB
C
73 lines
2.4 KiB
C
/*---------------------------------------------------------------------------*\
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FILE........: codec2.h
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AUTHOR......: David Rowe
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DATE CREATED: 21 August 2010
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Codec 2 fully quantised encoder and decoder functions. If you want use
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Codec 2, these are the functions you need to call.
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\*---------------------------------------------------------------------------*/
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/*
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Copyright (C) 2010 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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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef __CODEC2__
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#define __CODEC2__
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/* set up the calling convention for DLL function import/export for
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WIN32 cross compiling */
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#ifdef __CODEC2_WIN32__
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#ifdef __CODEC2_BUILDING_DLL__
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#define CODEC2_WIN32SUPPORT __declspec(dllexport) __stdcall
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#else
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#define CODEC2_WIN32SUPPORT __declspec(dllimport) __stdcall
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#endif
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#else
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#define CODEC2_WIN32SUPPORT
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#endif
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#define CODEC2_MODE_3200 0
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#define CODEC2_MODE_2400 1
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#define CODEC2_MODE_1400 2
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#define CODEC2_MODE_1200 3
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struct CODEC2;
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struct CODEC2 * CODEC2_WIN32SUPPORT codec2_create(int mode);
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void CODEC2_WIN32SUPPORT codec2_destroy(struct CODEC2 *codec2_state);
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void CODEC2_WIN32SUPPORT codec2_encode(struct CODEC2 *codec2_state, unsigned char * bits, short speech_in[]);
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void CODEC2_WIN32SUPPORT codec2_decode(struct CODEC2 *codec2_state, short speech_out[], const unsigned char *bits);
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int CODEC2_WIN32SUPPORT codec2_samples_per_frame(struct CODEC2 *codec2_state);
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int CODEC2_WIN32SUPPORT codec2_bits_per_frame(struct CODEC2 *codec2_state);
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void CODEC2_WIN32SUPPORT codec2_set_lpc_post_filter(struct CODEC2 *codec2_state, int enable, int bass_boost, float beta, float gamma);
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int CODEC2_WIN32SUPPORT codec2_get_spare_bit_index(struct CODEC2 *codec2_state);
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int CODEC2_WIN32SUPPORT codec2_rebuild_spare_bit(struct CODEC2 *codec2_state, int unpacked_bits[]);
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#endif
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#ifdef __cplusplus
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}
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#endif
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