/************************************************************

Created: Thursday, September 5, 1991 at 4:15 PM
 SoundInput.h
 C Interface to the Macintosh Libraries


  Copyright Apple Computer, Inc. 1990-1991
  All rights reserved

************************************************************/


#ifndef __SOUNDINPUT__
#define __SOUNDINPUT__

#ifndef __TYPES__
#include <Types.h>
#endif

#ifndef __DIALOGS__
#include <Dialogs.h>
#endif

#ifndef __FILES__
#include <Files.h>
#endif


enum {

 siDeviceIsConnected = 1,				/* input device is connected and ready for input */
 siDeviceNotConnected = 0,				/* input device is not connected */
 siDontKnowIfConnected = -1,			/* can't tell if input device is connected */
 siReadPermission = 0,					/* permission passed to SPBOpenDevice */
 siWritePermission = 1					/* permission passed to SPBOpenDevice */

/* Info Selectors for Sound Input Drivers */

#define siDeviceConnected 'dcon'		/* input device connection status */
#define siAGCOnOff 'agc '				/* automatic gain control state */
#define siPlayThruOnOff 'plth'			/* playthrough state */
#define siTwosComplementOnOff 'twos'	/* two's complement state */
#define siLevelMeterOnOff 'lmet'		/* level meter state */
#define siRecordingQuality 'qual'		/* recording quality */
#define siVoxRecordInfo 'voxr'			/* VOX record parameters */
#define siVoxStopInfo 'voxs'			/* VOX stop parameters */
#define siNumberChannels 'chan'			/* current number of channels */
#define siSampleSize 'ssiz'				/* current sample size */
#define siSampleRate 'srat'				/* current sample rate */
#define siCompressionType 'comp'		/* current compression type */
#define siCompressionFactor 'cmfa'		/* current compression factor */
#define siCompressionHeader 'cmhd'		/* return compression header */
#define siDeviceName 'name'				/* input device name */
#define siDeviceIcon 'icon'				/* input device icon */
#define siDeviceBufferInfo 'dbin'		/* size of interrupt buffer */
#define siSampleSizeAvailable 'ssav'	/* sample sizes available */
#define siSampleRateAvailable 'srav'	/* sample rates available */
#define siCompressionAvailable 'cmav'	/* compression types available */
#define siChannelAvailable 'chav'		/* number of channels available */
#define siAsync 'asyn'					/* asynchronous capability */
#define siOptionsDialog 'optd'			/* display options dialog */
#define siContinuous 'cont'				/* continous recording */
#define siActiveChannels 'chac'			/* active channels */
#define siActiveLevels 'lmac'			/* active meter levels */
#define siInputSource 'sour'			/* input source selector */
#define siInitializeDriver 'init'		/* reserved for internal use only */
#define siCloseDriver 'clos'			/* reserved for internal use only */
#define siPauseRecording 'paus'			/* reserved for internal use only */
#define siUserInterruptProc 'user'		/* reserved for internal use only */

/* Qualities */
#define siBestQuality 'best'
#define siBetterQuality 'betr'
#define siGoodQuality 'good'
};

/* Sound Input Parameter Block */
struct SPB {
 long inRefNum;							/* reference number of sound input device */
 unsigned long count;					/* number of bytes to record */
 unsigned long milliseconds;			/* number of milliseconds to record */
 unsigned long bufferLength;			/* length of buffer in bytes */
 Ptr bufferPtr;							/* buffer to store sound data in */
 ProcPtr completionRoutine;				/* completion routine */
 ProcPtr interruptRoutine;				/* interrupt routine */
 long userLong;							/* user-defined field */
 OSErr error;							/* error */
 long unused1;							/* reserved - must be zero */
};

typedef struct SPB SPB;
typedef SPB *SPBPtr;


#ifdef __cplusplus
extern "C" {
#endif
pascal NumVersion SPBVersion(void)
 = {0x203C,0x0000,0x0014,0xA800}; 
pascal OSErr SndRecord(ModalFilterProcPtr filterProc,Point corner,OSType quality,
 Handle *sndHandle)
 = {0x203C,0x0804,0x0014,0xA800}; 
pascal OSErr SndRecordToFile(ModalFilterProcPtr filterProc,Point corner,
 OSType quality,short fRefNum)
 = {0x203C,0x0708,0x0014,0xA800}; 
pascal OSErr SPBSignInDevice(short deviceRefNum,ConstStr255Param deviceName)
 = {0x203C,0x030C,0x0014,0xA800}; 
pascal OSErr SPBSignOutDevice(short deviceRefNum)
 = {0x203C,0x0110,0x0014,0xA800}; 
pascal OSErr SPBGetIndexedDevice(short count,Str255 deviceName,Handle *deviceIconHandle)
 = {0x203C,0x0514,0x0014,0xA800}; 
pascal OSErr SPBOpenDevice(ConstStr255Param deviceName,short permission,
 long *inRefNum)
 = {0x203C,0x0518,0x0014,0xA800}; 
pascal OSErr SPBCloseDevice(long inRefNum)
 = {0x203C,0x021C,0x0014,0xA800}; 
pascal OSErr SPBRecord(SPBPtr inParamPtr,Boolean asynchFlag)
 = {0x203C,0x0320,0x0014,0xA800}; 
pascal OSErr SPBRecordToFile(short fRefNum,SPBPtr inParamPtr,Boolean asynchFlag)
 = {0x203C,0x0424,0x0014,0xA800}; 
pascal OSErr SPBPauseRecording(long inRefNum)
 = {0x203C,0x0228,0x0014,0xA800}; 
pascal OSErr SPBResumeRecording(long inRefNum)
 = {0x203C,0x022C,0x0014,0xA800}; 
pascal OSErr SPBStopRecording(long inRefNum)
 = {0x203C,0x0230,0x0014,0xA800}; 
pascal OSErr SPBGetRecordingStatus(long inRefNum,short *recordingStatus,
 short *meterLevel,unsigned long *totalSamplesToRecord,unsigned long *numberOfSamplesRecorded,
 unsigned long *totalMsecsToRecord,unsigned long *numberOfMsecsRecorded)
 = {0x203C,0x0E34,0x0014,0xA800}; 
pascal OSErr SPBGetDeviceInfo(long inRefNum,OSType infoType,char *infoData)
 = {0x203C,0x0638,0x0014,0xA800}; 
pascal OSErr SPBSetDeviceInfo(long inRefNum,OSType infoType,char *infoData)
 = {0x203C,0x063C,0x0014,0xA800}; 
pascal OSErr SPBMillisecondsToBytes(long inRefNum,long *milliseconds)
 = {0x203C,0x0440,0x0014,0xA800}; 
pascal OSErr SPBBytesToMilliseconds(long inRefNum,long *byteCount)
 = {0x203C,0x0444,0x0014,0xA800}; 
pascal OSErr SetupSndHeader(Handle sndHandle,short numChannels,Fixed sampleRate,
 short sampleSize,OSType compressionType,short baseNote,unsigned long numBytes,
 short *headerLen)
 = {0x203C,0x0D48,0x0014,0xA800}; 
pascal OSErr SetupAIFFHeader(short fRefNum,short numChannels,Fixed sampleRate,
 short sampleSize,OSType compressionType,unsigned long numBytes,unsigned long numFrames)
 = {0x203C,0x0B4C,0x0014,0xA800}; 
#ifdef __cplusplus
}
#endif

#endif