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/* $Id$ */
/*
* Copyright (C) 2008-2009 Teluu Inc. (http://www.teluu.com)
* Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org>
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* 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 General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* Based on implementation found in Carnegie Mellon Speech Group Software
* depository (ftp://ftp.cs.cmu.edu/project/fgdata/index.html). No copyright
* was claimed in the original source codes.
*/
#ifndef __PJMEDIA_CODEC_G722_ENC_H__
#define __PJMEDIA_CODEC_G722_ENC_H__
#include <pjmedia-codec/types.h>
/* Encoder state */
typedef struct g722_enc_t {
/* PCM low band */
int slow;
int detlow;
int spl;
int szl;
int rlt [3];
int al [3];
int apl [3];
int plt [3];
int dlt [7];
int bl [7];
int bpl [7];
int sgl [7];
int nbl;
/* PCM high band*/
int shigh;
int dethigh;
int sph;
int szh;
int rh [3];
int ah [3];
int aph [3];
int ph [3];
int dh [7];
int bh [7];
int bph [7];
int sgh [7];
int nbh;
/* QMF signal history */
int x[24];
} g722_enc_t;
PJ_DECL(pj_status_t) g722_enc_init(g722_enc_t *enc);
PJ_DECL(pj_status_t) g722_enc_encode(g722_enc_t *enc,
pj_int16_t in[],
pj_size_t nsamples,
void *out,
pj_size_t *out_size);
PJ_DECL(pj_status_t) g722_enc_deinit(g722_enc_t *enc);
#endif /* __PJMEDIA_CODEC_G722_ENC_H__ */
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