audiodev.h

G.723在ARM上的实现。实现平台为Linux2.4.8+ Intel Xscal。包括源代码

/*
* this file implement the audiodev control ,read and write!
*/



#include <unistd.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <linux/soundcard.h>

/*
* audiodev ioctrol	
*/	
#define 	MOD_WRONLY		3
#define		MOD_RDONLY		4
#define		MOD_RDWR		5

/*
*encoder and decoder 
*/
#define 	RATE 			8000
#define 	SIZE 			16
#define 	CHANNELS 		2
#define		MODE_ENC_DEC		2

/*
* voice frame 
*/
	





class AudioDev
{	
public:
	int open_audiodev(int mode);
	void init_audiodev(int fd);
static  void *voiceplay(void *);
	void voiceplaythread_start(void);	
};