bwpcm8.h

BlueWave PCM8 adpcm 编码解码工具

/*----------------------------------------------
 bwpcm8.h	BlueWings PCM driver header
	 Copyright (C)2001 俙俷俬仚
	2001/ 1/ 8 rev0.01
-----------------------------------------------*/

#ifndef _BMPCM8_H_
#define _BMPCM8_H_

#include <sys/sound.h>

/*----------------------------------
	PCM MODEs
-----------------------------------*/
#define	PCM_ID_WAV		1
#define	PCM_ID_X68		2

/*----------------------------------
	DEFINEs
-----------------------------------*/
#define	PCM_FREQ_12K	1
#define	PCM_FREQ_6K		2
#define	PCM_FREQ_4K		3
#define	PCM_FREQ_3K		4

#define	PCM_UP_NONE		0
#define	PCM_UP_LINER	1
#define	PCM_UP_PARA		2

#define	FLG_LOOP		128
#define	FLG_PLAY		64
#define	FLG_RESTART		32
#define	FLG_NEXT		4

/*----------------------------------
	BIOS DEFINEs
-----------------------------------*/
#define	VOICE_MODE_ON	0x20
#define	OUTPUT_INT_ON	0x01
#define	OUTPUT_EXT_ON	0x08
#define	OUTPUT_VOL_4	0x00
#define	OUTPUT_VOL_3	0x02
#define	OUTPUT_VOL_2	0x04
#define	OUTPUT_VOL_1	0x06

/*----------------------------------
	FUNCTIONs
-----------------------------------*/
void near pcm8_open( int pcm_id, int freq_id );
void near pcm8_close(int last_intcall_interval);
int near pcm8_start(int channel, int id, int flag);
int near pcm8_start_mem(int channel, int flag, BYTE far *dat, DWORD size);
void near pcm8_wait(int channel);
void near pcm8_stop(int channel);
unsigned near pcm8_read_status(int channel);
unsigned near pcm8_read_loop_count(int channel);

#endif