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/*
The mediastreamer library aims at providing modular media processing and I/O
for linphone, but also for any telephony application.
Copyright (C) 2001 Simon MORLAT simon.morlat@linphone.org
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef MSLPC10ENCODER_H
#define MSLPC10ENCODER_H
#include "mscodec.h"
int
read_16bit_samples(gint16 int16samples[], float speech[], int n);
int
write_16bit_samples(gint16 int16samples[], float speech[], int n);
void
write_bits(unsigned char *data, gint32 *bits, int len);
int
read_bits(unsigned char *data, gint32 *bits, int len);
/*this is the class that implements a LPC10encoder filter*/
#define MSLPC10ENCODER_MAX_INPUTS 1 /* max output per filter*/
typedef struct _MSLPC10Encoder
{
/* the MSLPC10Encoder derivates from MSFilter, so the MSFilter object MUST be the first of the MSLPC10Encoder object
in order to the object mechanism to work*/
MSFilter filter;
MSFifo *f_inputs[MSLPC10ENCODER_MAX_INPUTS];
MSFifo *f_outputs[MSLPC10ENCODER_MAX_INPUTS];
struct lpc10_encoder_state *lpc10_enc;
} MSLPC10Encoder;
typedef struct _MSLPC10EncoderClass
{
/* the MSLPC10Encoder derivates from MSFilter, so the MSFilter class MUST be the first of the MSLPC10Encoder class
in order to the class mechanism to work*/
MSFilterClass parent_class;
} MSLPC10EncoderClass;
/* PUBLIC */
#define MS_LPC10ENCODER(filter) ((MSLPC10Encoder*)(filter))
#define MS_LPC10ENCODER_CLASS(klass) ((MSLPC10EncoderClass*)(klass))
MSFilter * ms_LPC10encoder_new(void);
/* FOR INTERNAL USE*/
void ms_LPC10encoder_init(MSLPC10Encoder *r);
void ms_LPC10encoder_class_init(MSLPC10EncoderClass *klass);
void ms_LPC10encoder_destroy( MSLPC10Encoder *obj);
void ms_LPC10encoder_process(MSLPC10Encoder *r);
#endif
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