mirror of
https://github.com/signalwire/freeswitch.git
synced 2026-10-20 18:24:13 +00:00
swap to new ilbc library
git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@12095 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Michael Jerris committed
1 parent
d6993cb472
commit
749114b704
191 files changed
+60584
-19045
No files matched your search
@@ -0,0 +1,159 @@
|
||||
/*
|
||||
* iLBC - a library for the iLBC codec
|
||||
*
|
||||
* ilbc.h - The iLBC low bit rate speech codec.
|
||||
*
|
||||
* Adapted by Steve Underwood <steveu@coppice.org> from the reference
|
||||
* iLBC code supplied in RFC3951.
|
||||
*
|
||||
* Copyright (C) The Internet Society (2004).
|
||||
* All Rights Reserved.
|
||||
*
|
||||
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*
|
||||
* $Id: ilbc.h,v 1.1.1.1 2008/02/15 12:15:55 steveu Exp $
|
||||
*/
|
||||
|
||||
#if !defined(_ILBC_ILBC_H_)
|
||||
#define _ILBC_ILBC_H_
|
||||
|
||||
#define ILBC_BLOCK_LEN_20MS 160
|
||||
#define ILBC_BLOCK_LEN_30MS 240
|
||||
#define ILBC_BLOCK_LEN_MAX 240
|
||||
|
||||
#define ILBC_NO_OF_BYTES_20MS 38
|
||||
#define ILBC_NO_OF_BYTES_30MS 50
|
||||
#define ILBC_NO_OF_BYTES_MAX 50
|
||||
|
||||
#define ILBC_NUM_SUB_MAX 6
|
||||
|
||||
#define SUBL 40
|
||||
|
||||
#define ENH_BLOCKL 80 /* block length */
|
||||
#define ENH_NBLOCKS_TOT 8 /* ENH_NBLOCKS + ENH_NBLOCKS_EXTRA */
|
||||
#define ENH_BUFL (ENH_NBLOCKS_TOT*ENH_BLOCKL)
|
||||
|
||||
#define ILBC_LPC_FILTERORDER 10
|
||||
#define LPC_LOOKBACK 60
|
||||
|
||||
#define CB_NSTAGES 3
|
||||
|
||||
#define STATE_BITS 3
|
||||
#define BYTE_LEN 8
|
||||
#define ILBC_ULP_CLASSES 3
|
||||
|
||||
typedef struct
|
||||
{
|
||||
int lsf_bits[6][ILBC_ULP_CLASSES + 2];
|
||||
int start_bits[ILBC_ULP_CLASSES + 2];
|
||||
int startfirst_bits[ILBC_ULP_CLASSES + 2];
|
||||
int scale_bits[ILBC_ULP_CLASSES + 2];
|
||||
int state_bits[ILBC_ULP_CLASSES + 2];
|
||||
int extra_cb_index[CB_NSTAGES][ILBC_ULP_CLASSES + 2];
|
||||
int extra_cb_gain[CB_NSTAGES][ILBC_ULP_CLASSES + 2];
|
||||
int cb_index[ILBC_NUM_SUB_MAX][CB_NSTAGES][ILBC_ULP_CLASSES + 2];
|
||||
int cb_gain[ILBC_NUM_SUB_MAX][CB_NSTAGES][ILBC_ULP_CLASSES + 2];
|
||||
} ilbc_ulp_inst_t;
|
||||
|
||||
/* Type definition encoder instance */
|
||||
typedef struct
|
||||
{
|
||||
/* flag for frame size mode */
|
||||
int mode;
|
||||
|
||||
/* basic parameters for different frame sizes */
|
||||
int blockl;
|
||||
int nsub;
|
||||
int nasub;
|
||||
int no_of_bytes;
|
||||
int lpc_n;
|
||||
int state_short_len;
|
||||
const ilbc_ulp_inst_t *ULP_inst;
|
||||
|
||||
/* analysis filter state */
|
||||
float anaMem[ILBC_LPC_FILTERORDER];
|
||||
|
||||
/* old lsf parameters for interpolation */
|
||||
float lsfold[ILBC_LPC_FILTERORDER];
|
||||
float lsfdeqold[ILBC_LPC_FILTERORDER];
|
||||
|
||||
/* signal buffer for LP analysis */
|
||||
float lpc_buffer[LPC_LOOKBACK + ILBC_BLOCK_LEN_MAX];
|
||||
|
||||
/* state of input HP filter */
|
||||
float hpimem[4];
|
||||
} ilbc_encode_state_t;
|
||||
|
||||
/* Type definition decoder instance */
|
||||
typedef struct
|
||||
{
|
||||
/* Flag for frame size mode */
|
||||
int mode;
|
||||
|
||||
/* Basic parameters for different frame sizes */
|
||||
int blockl;
|
||||
int nsub;
|
||||
int nasub;
|
||||
int no_of_bytes;
|
||||
int lpc_n;
|
||||
int state_short_len;
|
||||
const ilbc_ulp_inst_t *ULP_inst;
|
||||
|
||||
/* Synthesis filter state */
|
||||
float syntMem[ILBC_LPC_FILTERORDER];
|
||||
|
||||
/* Old LSF for interpolation */
|
||||
float lsfdeqold[ILBC_LPC_FILTERORDER];
|
||||
|
||||
/* Pitch lag estimated in enhancer and used in PLC */
|
||||
int last_lag;
|
||||
|
||||
/* PLC state information */
|
||||
int prevLag, consPLICount, prevPLI, prev_enh_pl;
|
||||
float prevLpc[ILBC_LPC_FILTERORDER + 1];
|
||||
float prevResidual[ILBC_NUM_SUB_MAX*SUBL];
|
||||
float per;
|
||||
unsigned long seed;
|
||||
|
||||
/* Previous synthesis filter parameters */
|
||||
float old_syntdenum[(ILBC_LPC_FILTERORDER + 1)*ILBC_NUM_SUB_MAX];
|
||||
|
||||
/* State of output HP filter */
|
||||
float hpomem[4];
|
||||
|
||||
/* Enhancer state information */
|
||||
int use_enhancer;
|
||||
float enh_buf[ENH_BUFL];
|
||||
float enh_period[ENH_NBLOCKS_TOT];
|
||||
} ilbc_decode_state_t;
|
||||
|
||||
ilbc_encode_state_t *ilbc_encode_init(ilbc_encode_state_t *s, /* (i/o) Encoder instance */
|
||||
int mode); /* (i) frame size mode */
|
||||
|
||||
int ilbc_encode(ilbc_encode_state_t *s, /* (i/o) the general encoder state */
|
||||
uint8_t bytes[], /* (o) encoded data bits iLBC */
|
||||
const int16_t amp[], /* (o) speech vector to encode */
|
||||
int len);
|
||||
|
||||
ilbc_decode_state_t *ilbc_decode_init(ilbc_decode_state_t *s, /* (i/o) Decoder instance */
|
||||
int mode, /* (i) frame size mode */
|
||||
int use_enhancer); /* (i) 1 to use enhancer
|
||||
0 to run without enhancer */
|
||||
|
||||
int ilbc_decode(ilbc_decode_state_t *s, /* (i/o) the decoder state structure */
|
||||
int16_t amp[], /* (o) decoded signal block */
|
||||
const uint8_t bytes[], /* (i) encoded signal bits */
|
||||
int len);
|
||||
|
||||
int ilbc_fillin(ilbc_decode_state_t *s, /* (i/o) the decoder state structure */
|
||||
int16_t amp[], /* (o) decoded signal block */
|
||||
int len);
|
||||
|
||||
#endif
|
||||
@@ -0,0 +1,37 @@
|
||||
/*
|
||||
* SpanDSP - a series of DSP components for telephony
|
||||
*
|
||||
* version.h - A tag file, so the exact installed revision can be assertained.
|
||||
*
|
||||
* Written by Steve Underwood <steveu@coppice.org>
|
||||
*
|
||||
* Copyright (C) 2007 Steve Underwood
|
||||
*
|
||||
* All rights reserved.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the Lesser GNU General Public License version 2.1, as
|
||||
* published by the Free Software Foundation.
|
||||
*
|
||||
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*
|
||||
* $Id: version.h.in,v 1.1.1.1 2008/02/15 12:15:55 steveu Exp $
|
||||
*/
|
||||
|
||||
#if !defined(_VOIPCODECS_VERSION_H_)
|
||||
#define _VOIPCODECS_VERSION_H_
|
||||
|
||||
/* The date and time of the version are in UTC form. */
|
||||
|
||||
#define VOIPCODECS_RELEASE_DATE $VOIPCODECS_RELEASE_DATE
|
||||
#define VOIPCODECS_RELEASE_TIME $VOIPCODECS_RELEASE_TIME
|
||||
|
||||
#endif
|
||||
/*- End of file ------------------------------------------------------------*/
|
||||
@@ -0,0 +1,37 @@
|
||||
/*
|
||||
* SpanDSP - a series of DSP components for telephony
|
||||
*
|
||||
* version.h - A tag file, so the exact installed revision can be assertained.
|
||||
*
|
||||
* Written by Steve Underwood <steveu@coppice.org>
|
||||
*
|
||||
* Copyright (C) 2007 Steve Underwood
|
||||
*
|
||||
* All rights reserved.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the Lesser GNU General Public License version 2.1, as
|
||||
* published by the Free Software Foundation.
|
||||
*
|
||||
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*
|
||||
* $Id: version.h.in,v 1.1.1.1 2008/02/15 12:15:55 steveu Exp $
|
||||
*/
|
||||
|
||||
#if !defined(_VOIPCODECS_VERSION_H_)
|
||||
#define _VOIPCODECS_VERSION_H_
|
||||
|
||||
/* The date and time of the version are in UTC form. */
|
||||
|
||||
#define VOIPCODECS_RELEASE_DATE $VOIPCODECS_RELEASE_DATE
|
||||
#define VOIPCODECS_RELEASE_TIME $VOIPCODECS_RELEASE_TIME
|
||||
|
||||
#endif
|
||||
/*- End of file ------------------------------------------------------------*/
|
||||
Reference in new issue
Block a user