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

  File:  MediaDefs.h

  Copyright 1995-1999, Be Incorporated
  This file may be used under the terms of the Be Sample Code License.

******************************************************************************/
#ifndef _R3_MEDIA_DEFS_H
#define _R3_MEDIA_DEFS_H

#include <SupportDefs.h>
#include <Errors.h>
#if defined(__cplusplus)
#  include <MediaDefs.h>
#else
	/* values for byte_ordering */
	enum { B_BIG_ENDIAN, B_LITTLE_ENDIAN };
	
	/* values for sample_format */
	enum {
		B_UNDEFINED_SAMPLES,
		B_LINEAR_SAMPLES,
		B_FLOAT_SAMPLES,
		B_MULAW_SAMPLES
	};
#endif

/* Buffer header for audio server */

typedef struct audio_buffer_header {
	int32		buffer_number;
	int32		subscriber_count;
	bigtime_t	time;
	int32		reserved_1;
	int32		reserved_2;
	bigtime_t	sample_clock;
} audio_buffer_header;


#define		B_MEDIA_LEVEL				B_REAL_TIME_PRIORITY

#define		B_NO_CHANGE					(-1)

/* ================
   Subscriber IDs and special values
   ================ */

#define		B_NO_SUBSCRIBER_ID			((subscriber_id)-1)
#define		B_NO_SUBSCRIBER_NAME		"not subscribed"

#define		B_SHARED_SUBSCRIBER_ID		((subscriber_id)-2)
#define		B_SHARED_SUBSCRIBER_NAME	"shared subscriber"

/* ================
   Values for sound files and audio streams 
   ================ */


/* Audio device codes for BAudioSubscriber's
 * Get/SetVolume() and EnableDevice() calls 
 */
enum {
	B_CD_THROUGH = 0,
	B_LINE_IN_THROUGH,
	B_ADC_IN,
	B_LOOPBACK,
	B_DAC_OUT,
	B_MASTER_OUT,
	B_SPEAKER_OUT,
	B_SOUND_DEVICE_END
};

/* ADC input codes */
enum {
	B_CD_IN,
	B_LINE_IN,
	B_MIC_IN 
};

enum {
	B_DAC_STREAM = 2354,
	B_ADC_STREAM
};

#endif /* #ifndef _R3_MEDIA_DEFS_H */