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

        File:   AudioStream.h

        Copyright 1995-97, Be Incorporated

******************************************************************************/
#ifndef _AUDIO_STREAM_H
#define _AUDIO_STREAM_H


#include "OldBufferStream.h"


/* ================
   Class definition for BADCStream and BDACStream
   ================ */

class BADCStream : public BAbstractBufferStream
{
public:

                                        BADCStream();
        virtual                 ~BADCStream();

        status_t                SetADCInput(int32 device);
        status_t                ADCInput(int32* device) const;

        status_t                SetSamplingRate(float sRate);
        status_t                SamplingRate(float* sRate) const;

        status_t                BoostMic(bool boost);
        bool                    IsMicBoosted() const;

        status_t                SetStreamBuffers(size_t bufferSize, int32 bufferCount);

protected:

        virtual BMessenger*     Server() const;                 /* message pipe to server */
        virtual stream_id       StreamID() const;               /* stream identifier */

private:

virtual void            _ReservedADCStream1();
virtual void            _ReservedADCStream2();
virtual void            _ReservedADCStream3();

        BMessenger*             fServer;
        stream_id               fStreamID;
        uint32                  _reserved[4];
};


class BDACStream : public BAbstractBufferStream
{
public:

                                        BDACStream();
        virtual                 ~BDACStream();

        status_t                SetSamplingRate(float sRate);
        status_t                SamplingRate(float* sRate) const;

        status_t                SetVolume(int32 device,
                                                          float l_volume,
                                                          float r_volume);

        status_t                GetVolume(int32 device,
                                                          float *l_volume,
                                                          float *r_volume,
                                                          bool *enabled) const;

        status_t                EnableDevice(int32 device, bool enable);
        bool                    IsDeviceEnabled(int32 device) const;

        status_t                SetStreamBuffers(size_t bufferSize, int32 bufferCount);

protected:

        virtual BMessenger*     Server() const;                 /* message pipe to server */
        virtual stream_id       StreamID() const;               /* stream identifier */

private:

virtual void            _ReservedDACStream1();
virtual void            _ReservedDACStream2();
virtual void            _ReservedDACStream3();

        BMessenger*             fServer;
        stream_id               fStreamID;
        uint32                  _reserved[4];
};

#endif                  // #ifdef _AUDIO_STREAM_H