src/add-ons/media/media-add-ons/multi_audio/MultiAudioDevice.h

   1 /*
   2  * Copyright (c) 2002-2007, Jerome Duval (jerome.duval@free.fr)
   3  * Distributed under the terms of the MIT License.
   4  */
   5 #ifndef MULTI_AUDIO_DEVICE_H
   6 #define MULTI_AUDIO_DEVICE_H
   7
   8
   9 #include "hmulti_audio.h"
  10
  11
  12 #define MAX_CONTROLS    128
  13 #define MAX_CHANNELS    32
  14 #define MAX_BUFFERS             32
  15
  16
  17 class MultiAudioDevice {
  18 public:
  19                                                 MultiAudioDevice(const char* name, const char* path);
  20                                                 ~MultiAudioDevice();
  21
  22         status_t                        InitCheck() const;
  23
  24         const multi_description& Description() const { return fDescription; }
  25         const multi_format_info& FormatInfo() const { return fFormatInfo; }
  26         const multi_buffer_list& BufferList() const { return fBufferList; }
  27         const multi_mix_control_info& MixControlInfo() const
  28                                                         { return fMixControlInfo; }
  29
  30         status_t                        BufferExchange(multi_buffer_info* bufferInfo);
  31         status_t                        SetMix(multi_mix_value_info* mixValueInfo);
  32         status_t                        GetMix(multi_mix_value_info* mixValueInfo);
  33
  34         status_t                        SetInputFrameRate(uint32 multiAudioRate);
  35         status_t                        SetOutputFrameRate(uint32 multiAudioRate);
  36
  37 private:
  38         status_t                        _InitDriver();
  39         status_t                        _GetBuffers();
  40
  41 private:
  42         status_t                        fInitStatus;
  43         int                                     fDevice;
  44         char                            fPath[B_PATH_NAME_LENGTH];
  45
  46         multi_description       fDescription;
  47         multi_channel_info      fChannelInfo[MAX_CHANNELS];
  48         multi_format_info       fFormatInfo;
  49         multi_buffer_list       fBufferList;
  50
  51         multi_mix_control_info fMixControlInfo;
  52         multi_mix_control       fMixControl[MAX_CONTROLS];
  53
  54         buffer_desc                     fPlayBufferList[MAX_BUFFERS * MAX_CHANNELS];
  55         buffer_desc                     fRecordBufferList[MAX_BUFFERS * MAX_CHANNELS];
  56         buffer_desc*            fPlayBuffers[MAX_BUFFERS];
  57         buffer_desc*            fRecordBuffers[MAX_BUFFERS];
  58 };
  59
  60 #endif  // MULTI_AUDIO_DEVICE_H