car audio service详解

车载音频相关的服务，以下基于android11部分服务摘录。

framework java层

public CarAudioManager(Car car, IBinder service) {

mService = ICarAudio.Stub.asInterface(service);}-----bp，调用服务

public class CarAudioService extends ICarAudio.Stub implements CarServiceBase ---bn提供服务

public class AppFocusService extends IAppFocus.Stub implements CarServiceBase,BinderInterfaceContainer.BinderEventHandler<IAppFocusOwnershipCallback>

public class CarBluetoothService extends ICarBluetooth.Stub implements CarServiceBase

public class CarMediaService extends ICarMedia.Stub implements CarServiceBase

public final class CarUserService extends ICarUserService.Stub implements CarServiceBase

framework native层

/frameworks/av/media/libaudioclient/IAudioFlinger.cpp

class BpAudioFlingerClient : public BpInterface<IAudioFlingerClient>

class BpAudioFlinger : public BpInterface<IAudioFlinger>-----bp

class AudioFlinger :public BinderService<AudioFlinger>,public BnAudioFlinger---bn

class AudioPolicyService :public BinderService<AudioPolicyService>,

public BnAudioPolicyService,public IBinder::DeathRecipient

class CameraService :public BinderService<CameraService>,

public virtual ::android::hardware::BnCameraService,

public virtual IBinder::DeathRecipient,public virtual CameraProviderManager::StatusListener

class MediaExtractorService : public BinderService<MediaExtractorService>, public BnMediaExtractorService

class MediaLogService : public BinderService<MediaLogService>, public BnMediaLogService

class AAudioService :public BinderService<AAudioService>,public BnAAudioService,

public aaudio::AAudioServiceInterface

class NetdNativeService : public BinderService<NetdNativeService>, public BnNetd

class VRAudioServiceNative :public BinderService<VRAudioServiceNative>,

public BnVRAudioService