diff options
Diffstat (limited to 'pjmedia/src/pjmedia-codec/g722/g722_enc.h')
| -rw-r--r-- | pjmedia/src/pjmedia-codec/g722/g722_enc.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/pjmedia/src/pjmedia-codec/g722/g722_enc.h b/pjmedia/src/pjmedia-codec/g722/g722_enc.h new file mode 100644 index 0000000..96f9af6 --- /dev/null +++ b/pjmedia/src/pjmedia-codec/g722/g722_enc.h @@ -0,0 +1,78 @@ +/* $Id: g722_enc.h 3553 2011-05-05 06:14:19Z nanang $ */ +/* + * 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__ */ + |