| /* $Id$ */ |
| /* |
| * Copyright (C) 2008-2011 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__ */ |
| |