src/kits/media/legacy/OldMediaDefs.h

   1 /******************************************************************************
   2
   3         File:   MediaDefs.h
   4
   5         Copyright 1995-97, Be Incorporated
   6
   7 ******************************************************************************/
   8 #ifndef _MEDIA_DEFS_H
   9 #define _MEDIA_DEFS_H
  10
  11 #include <SupportDefs.h>
  12 #include <Errors.h>
  13
  14 /* Buffer header for audio server */
  15
  16 typedef struct audio_buffer_header {
  17   int32 buffer_number;
  18   int32 subscriber_count;
  19   bigtime_t time;
  20   int32 reserved_1;
  21   int32 reserved_2;
  22   int32 reserved_3;
  23   int32 reserved_4;
  24 } audio_buffer_header;
  25
  26
  27 #define         B_MEDIA_LEVEL   B_REAL_TIME_PRIORITY
  28
  29 #define         B_NO_CHANGE (-1)
  30
  31 /* ================
  32    Subscriber IDs and special values
  33    ================ */
  34
  35 #define                 B_NO_SUBSCRIBER_ID              ((subscriber_id)-1)
  36 #define                 B_NO_SUBSCRIBER_NAME            "not subscribed"
  37
  38 #define                 B_SHARED_SUBSCRIBER_ID  ((subscriber_id)-2)
  39 #define                 B_SHARED_SUBSCRIBER_NAME        "shared subscriber"
  40
  41 /* ================
  42    Values for sound files and audio streams
  43    ================ */
  44
  45 /* values for byte_ordering */
  46 enum { B_BIG_ENDIAN, B_LITTLE_ENDIAN };
  47
  48 /* values for sample_format */
  49 enum {
  50   B_UNDEFINED_SAMPLES,
  51   B_LINEAR_SAMPLES,
  52   B_FLOAT_SAMPLES,
  53   B_MULAW_SAMPLES
  54   };
  55
  56 /* Audio device codes for BAudioSubscriber's
  57  * Get/SetVolume() and EnableDevice() calls
  58  */
  59 enum  {
  60         B_CD_THROUGH=0,
  61         B_LINE_IN_THROUGH,
  62         B_ADC_IN,
  63         B_LOOPBACK,
  64         B_DAC_OUT,
  65         B_MASTER_OUT,
  66         B_SPEAKER_OUT,
  67         B_SOUND_DEVICE_END
  68   };
  69
  70 /* ADC input codes */
  71 enum {
  72         B_CD_IN,
  73         B_LINE_IN,
  74         B_MIC_IN
  75   };
  76
  77
  78 enum {
  79   B_DAC_STREAM = 2354,
  80   B_ADC_STREAM
  81   };
  82
  83 #endif  // #ifndef _MEDIA_DEFS_H