src/kits/media/legacy/OldAudioStream.h

   1 /******************************************************************************
   2
   3         File:   AudioStream.h
   4
   5         Copyright 1995-97, Be Incorporated
   6
   7 ******************************************************************************/
   8 #ifndef _AUDIO_STREAM_H
   9 #define _AUDIO_STREAM_H
  10
  11
  12 #include "OldBufferStream.h"
  13
  14
  15 /* ================
  16    Class definition for BADCStream and BDACStream
  17    ================ */
  18
  19 class BADCStream : public BAbstractBufferStream
  20 {
  21 public:
  22
  23                                         BADCStream();
  24         virtual                 ~BADCStream();
  25
  26         status_t                SetADCInput(int32 device);
  27         status_t                ADCInput(int32* device) const;
  28
  29         status_t                SetSamplingRate(float sRate);
  30         status_t                SamplingRate(float* sRate) const;
  31
  32         status_t                BoostMic(bool boost);
  33         bool                    IsMicBoosted() const;
  34
  35         status_t                SetStreamBuffers(size_t bufferSize, int32 bufferCount);
  36
  37 protected:
  38
  39         virtual BMessenger*     Server() const;                 /* message pipe to server */
  40         virtual stream_id       StreamID() const;               /* stream identifier */
  41
  42 private:
  43
  44 virtual void            _ReservedADCStream1();
  45 virtual void            _ReservedADCStream2();
  46 virtual void            _ReservedADCStream3();
  47
  48         BMessenger*             fServer;
  49         stream_id               fStreamID;
  50         uint32                  _reserved[4];
  51 };
  52
  53
  54 class BDACStream : public BAbstractBufferStream
  55 {
  56 public:
  57
  58                                         BDACStream();
  59         virtual                 ~BDACStream();
  60
  61         status_t                SetSamplingRate(float sRate);
  62         status_t                SamplingRate(float* sRate) const;
  63
  64         status_t                SetVolume(int32 device,
  65                                                           float l_volume,
  66                                                           float r_volume);
  67
  68         status_t                GetVolume(int32 device,
  69                                                           float *l_volume,
  70                                                           float *r_volume,
  71                                                           bool *enabled) const;
  72
  73         status_t                EnableDevice(int32 device, bool enable);
  74         bool                    IsDeviceEnabled(int32 device) const;
  75
  76         status_t                SetStreamBuffers(size_t bufferSize, int32 bufferCount);
  77
  78 protected:
  79
  80         virtual BMessenger*     Server() const;                 /* message pipe to server */
  81         virtual stream_id       StreamID() const;               /* stream identifier */
  82
  83 private:
  84
  85 virtual void            _ReservedDACStream1();
  86 virtual void            _ReservedDACStream2();
  87 virtual void            _ReservedDACStream3();
  88
  89         BMessenger*             fServer;
  90         stream_id               fStreamID;
  91         uint32                  _reserved[4];
  92 };
  93
  94 #endif                  // #ifdef _AUDIO_STREAM_H