84 lines
1.6 KiB
C
84 lines
1.6 KiB
C
/******************************************************************************
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File: MediaDefs.h
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Copyright 1995-97, Be Incorporated
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******************************************************************************/
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#ifndef _MEDIA_DEFS_H
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#define _MEDIA_DEFS_H
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#include <SupportDefs.h>
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#include <Errors.h>
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/* Buffer header for audio server */
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typedef struct audio_buffer_header {
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int32 buffer_number;
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int32 subscriber_count;
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bigtime_t time;
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int32 reserved_1;
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int32 reserved_2;
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int32 reserved_3;
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int32 reserved_4;
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} audio_buffer_header;
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#define B_MEDIA_LEVEL B_REAL_TIME_PRIORITY
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#define B_NO_CHANGE (-1)
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/* ================
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Subscriber IDs and special values
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================ */
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#define B_NO_SUBSCRIBER_ID ((subscriber_id)-1)
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#define B_NO_SUBSCRIBER_NAME "not subscribed"
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#define B_SHARED_SUBSCRIBER_ID ((subscriber_id)-2)
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#define B_SHARED_SUBSCRIBER_NAME "shared subscriber"
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/* ================
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Values for sound files and audio streams
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================ */
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/* values for byte_ordering */
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enum { B_BIG_ENDIAN, B_LITTLE_ENDIAN };
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/* values for sample_format */
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enum {
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B_UNDEFINED_SAMPLES,
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B_LINEAR_SAMPLES,
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B_FLOAT_SAMPLES,
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B_MULAW_SAMPLES
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};
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/* Audio device codes for BAudioSubscriber's
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* Get/SetVolume() and EnableDevice() calls
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*/
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enum {
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B_CD_THROUGH=0,
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B_LINE_IN_THROUGH,
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B_ADC_IN,
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B_LOOPBACK,
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B_DAC_OUT,
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B_MASTER_OUT,
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B_SPEAKER_OUT,
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B_SOUND_DEVICE_END
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};
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/* ADC input codes */
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enum {
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B_CD_IN,
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B_LINE_IN,
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B_MIC_IN
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};
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enum {
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B_DAC_STREAM = 2354,
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B_ADC_STREAM
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};
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#endif // #ifndef _MEDIA_DEFS_H
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