| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef MEDIA_AUDIO_ANDROID_AUDIO_MANAGER_ANDROID_H_ |
| #define MEDIA_AUDIO_ANDROID_AUDIO_MANAGER_ANDROID_H_ |
| |
| #include <set> |
| |
| #include "base/android/jni_android.h" |
| #include "base/gtest_prod_util.h" |
| #include "base/synchronization/lock.h" |
| #include "base/synchronization/waitable_event.h" |
| #include "media/audio/audio_manager_base.h" |
| |
| namespace media { |
| |
| class OpenSLESOutputStream; |
| |
| // Android implemention of AudioManager. |
| class MEDIA_EXPORT AudioManagerAndroid : public AudioManagerBase { |
| public: |
| AudioManagerAndroid(AudioLogFactory* audio_log_factory); |
| |
| // Implementation of AudioManager. |
| virtual bool HasAudioOutputDevices() OVERRIDE; |
| virtual bool HasAudioInputDevices() OVERRIDE; |
| virtual void GetAudioInputDeviceNames( |
| AudioDeviceNames* device_names) OVERRIDE; |
| virtual void GetAudioOutputDeviceNames( |
| AudioDeviceNames* device_names) OVERRIDE; |
| virtual AudioParameters GetInputStreamParameters( |
| const std::string& device_id) OVERRIDE; |
| |
| virtual AudioOutputStream* MakeAudioOutputStream( |
| const AudioParameters& params, |
| const std::string& device_id) OVERRIDE; |
| virtual AudioInputStream* MakeAudioInputStream( |
| const AudioParameters& params, |
| const std::string& device_id) OVERRIDE; |
| virtual void ReleaseOutputStream(AudioOutputStream* stream) OVERRIDE; |
| virtual void ReleaseInputStream(AudioInputStream* stream) OVERRIDE; |
| |
| // Implementation of AudioManagerBase. |
| virtual AudioOutputStream* MakeLinearOutputStream( |
| const AudioParameters& params) OVERRIDE; |
| virtual AudioOutputStream* MakeLowLatencyOutputStream( |
| const AudioParameters& params, |
| const std::string& device_id) OVERRIDE; |
| virtual AudioInputStream* MakeLinearInputStream( |
| const AudioParameters& params, |
| const std::string& device_id) OVERRIDE; |
| virtual AudioInputStream* MakeLowLatencyInputStream( |
| const AudioParameters& params, |
| const std::string& device_id) OVERRIDE; |
| |
| static bool RegisterAudioManager(JNIEnv* env); |
| |
| void SetMute(JNIEnv* env, jobject obj, jboolean muted); |
| |
| protected: |
| virtual ~AudioManagerAndroid(); |
| |
| virtual AudioParameters GetPreferredOutputStreamParameters( |
| const std::string& output_device_id, |
| const AudioParameters& input_params) OVERRIDE; |
| |
| private: |
| void InitializeOnAudioThread(); |
| void ShutdownOnAudioThread(); |
| |
| bool HasNoAudioInputStreams(); |
| void SetCommunicationAudioModeOn(bool on); |
| bool SetAudioDevice(const std::string& device_id); |
| int GetNativeOutputSampleRate(); |
| bool IsAudioLowLatencySupported(); |
| int GetAudioLowLatencyOutputFrameSize(); |
| int GetOptimalOutputFrameSize(int sample_rate, int channels); |
| |
| void DoSetMuteOnAudioThread(bool muted); |
| |
| // Java AudioManager instance. |
| base::android::ScopedJavaGlobalRef<jobject> j_audio_manager_; |
| |
| typedef std::set<OpenSLESOutputStream*> OutputStreams; |
| OutputStreams streams_; |
| |
| // Enabled when first input stream is created and set to false when last |
| // input stream is destroyed. Also affects the stream type of output streams. |
| bool communication_mode_is_on_; |
| |
| DISALLOW_COPY_AND_ASSIGN(AudioManagerAndroid); |
| }; |
| |
| } // namespace media |
| |
| #endif // MEDIA_AUDIO_ANDROID_AUDIO_MANAGER_ANDROID_H_ |