media/audio/ios/audio_manager_ios.h

   1 // Copyright 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef MEDIA_AUDIO_IOS_AUDIO_MANAGER_IOS_H_
   6 #define MEDIA_AUDIO_IOS_AUDIO_MANAGER_IOS_H_
   7
   8 #include "base/basictypes.h"
   9 #include "media/audio/audio_manager_base.h"
  10
  11 namespace media {
  12
  13 class PCMQueueInAudioInputStream;
  14
  15 // iOS implementation of the AudioManager singleton. Supports only audio input.
  16 class MEDIA_EXPORT AudioManagerIOS : public AudioManagerBase {
  17  public:
  18   AudioManagerIOS();
  19
  20   // Implementation of AudioManager.
  21   virtual bool HasAudioOutputDevices() OVERRIDE;
  22   virtual bool HasAudioInputDevices() OVERRIDE;
  23   virtual AudioOutputStream* MakeAudioOutputStream(
  24       const AudioParameters& params,
  25       const std::string& input_device_id) OVERRIDE;
  26   virtual AudioInputStream* MakeAudioInputStream(
  27       const AudioParameters& params, const std::string& device_id) OVERRIDE;
  28   virtual AudioParameters GetInputStreamParameters(
  29       const std::string& device_id) OVERRIDE;
  30
  31   // Implementation of AudioManagerBase.
  32   virtual AudioOutputStream* MakeLinearOutputStream(
  33       const AudioParameters& params) OVERRIDE;
  34   virtual AudioOutputStream* MakeLowLatencyOutputStream(
  35       const AudioParameters& params,
  36       const std::string& input_device_id) OVERRIDE;
  37   virtual AudioInputStream* MakeLinearInputStream(
  38       const AudioParameters& params, const std::string& device_id) OVERRIDE;
  39   virtual AudioInputStream* MakeLowLatencyInputStream(
  40       const AudioParameters& params, const std::string& device_id) OVERRIDE;
  41   virtual void ReleaseOutputStream(AudioOutputStream* stream) OVERRIDE;
  42   virtual void ReleaseInputStream(AudioInputStream* stream) OVERRIDE;
  43
  44  protected:
  45   virtual ~AudioManagerIOS();
  46
  47   virtual AudioParameters GetPreferredOutputStreamParameters(
  48       const AudioParameters& input_params) OVERRIDE;
  49
  50  private:
  51   DISALLOW_COPY_AND_ASSIGN(AudioManagerIOS);
  52 };
  53
  54 }  // namespace media
  55
  56 #endif  // MEDIA_AUDIO_IOS_AUDIO_MANAGER_IOS_H_