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op25-legacy/imbe_vocoder/src/lib/decode.cc

61 lines
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C++

/*
* Project 25 IMBE Encoder/Decoder Fixed-Point implementation
* Developed by Pavel Yazev E-mail: pyazev@gmail.com
* Version 1.0 (c) Copyright 2009
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, or (at your option)
* any later version.
*
* The software 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 General Public License
* along with this; see the file COPYING. If not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Boston, MA
* 02110-1301, USA.
*/
#include "typedef.h"
#include "globals.h"
#include "imbe.h"
#include "ch_decode.h"
#include "sa_decode.h"
#include "sa_enh.h"
#include "v_synt.h"
#include "uv_synt.h"
#include "basic_op.h"
#include "aux_sub.h"
#include "encode.h"
#include "dsp_sub.h"
#include "op25_imbe_vocoder.h"
void op25_imbe_vocoder::decode_init(void)
{
v_synt_init();
uv_synt_init();
sa_decode_init();
}
void op25_imbe_vocoder::decode(IMBE_PARAM *imbe_param, Word16 *frame_vector, Word16 *snd)
{
Word16 snd_tmp[FRAME];
Word16 j;
decode_frame_vector(imbe_param, frame_vector);
v_uv_decode(imbe_param);
sa_decode(imbe_param);
sa_enh(imbe_param);
v_synt(imbe_param, snd);
uv_synt(imbe_param, snd_tmp);
for(j = 0; j < FRAME; j++)
snd[j] = add(snd[j], snd_tmp[j]);
}