ai_open( )

Description | Example | See Also

Name:	int ai_open(namep)
Inputs:	const char* namep	points to an ASCIIZ string that contains the name of a valid audio input device
Returns:	audio input device handle on success -1 on failure
Includes:	dxxxlib.h
Category:	Audio Input
Mode:	synchronous

Description

The ai_open( ) function opens an audio input device and returns a unique device handle to identify the device. Until the device is closed, all subsequent references to the opened device must be made using the handle.

Parameter	Description
namep	Points to an ASCIIZ string that contains the name of a valid audio input device, in the form aiBn, where n is the audio input device number.

Example

#include <windows.h>        /* include in Windows applications only */  
#include <stdio.h>  
#include <srllib.h>  
#include <dxxxlib.h>  
int main( )  
{  
   int         aidev;         /* Audio input device handle */  
   SC_TSINFO   sc_tsinfo;     /* Time slot information structure */  
   long        scts;          /* TDM bus time slot */  
   /* Open audio input device aiB1 */  
   if ((aidev = ai_open("aiB1")) < 0) {  
      /* process error */  
   }  
   /* Fill in the TDM bus time slot information */  
   sc_tsinfo.sc_numts = 1;  
   sc_tsinfo.sc_tsarrayp = &scts;  
   /* Get TDM bus time slot connected to transmit of audio input device */  
   if (ai_getxmitslot(aidev, &sc_tsinfo) < 0) {  
      /* process error */  
   }  
   else {  
      printf("%s is transmitting on TDM time slot %d", ATDV_NAMEP(aidev), scts);  
   }  
   /* Close audio input device */  
   if (ai_close(aidev) < 0) {  
      /* process error */  
   }  
    return 0;  
}

See Also

• ai_close( )
• ai_getxmitslot( )
• sr_getboardcnt( )

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