myvtm/Other/libaudioframework/audiocodec.h

#ifndef __AUDIOCODEC_H__
#define __AUDIOCODEC_H__

#pragma once

#ifdef __cplusplus
extern "C" {
#endif

#include "audiostream.h"

#define AUDIO_CODEC_OPT_ENCODE_READ		0
#define AUDIO_CODEC_OPT_ENCODE_WRITE	1
#define AUDIO_CODEC_OPT_DECODE_READ		1
#define AUDIO_CODEC_OPT_DECODE_WRITE	0
#define AUDIO_CODEC_OPT_PLC				2

typedef struct audiocodec_t audiocodec_t;

struct audiocodec_t
{
	audiostream_t base;
	int flag;
	int ptime;
	int clock;
	void *private_codec;
	void *plc_state;
	int last_plc;
	audioframe_t tmp_frame;
};

apr_status_t audiocodec_create(apr_pool_t *pool,
							   audioengine_t *engine, 
							   const char *name, 
							   int clock, 
							   int ptime, 
							   int flag,
							   audiocodec_t**p_codec);
apr_status_t audiocodec_set_param(audiocodec_t *codec, const char *key, const char *value);
apr_status_t audiocodec_get_param(audiocodec_t *codec, const char *key, char *value);
apr_status_t audiocodec_init(audiocodec_t *codec);
apr_status_t audiocodec_term(audiocodec_t *codec);
void audiocodec_destroy(audiocodec_t *codec);
apr_status_t audiocodec_pcma_decode(const void *inbuf,int insize,void *outbuf,int *outsize);
apr_status_t audiocodec_pcmu_decode(const void *inbuf,int insize,void *outbuf,int *outsize);
apr_status_t audiocodec_g729a_decode(const void *inbuf,int insize,void *outbuf,int *outsize);

#ifdef __cplusplus
} // extern "C" {
#endif

#endif //__AUDIOCODEC_H__