Refactor AudioPolicyManager
AudioPolicyManager implementation is now split into the
following files:
files managerdefault/Gains.*
class AudioGain
class VolumeCurvePoint
class StreamDescriptor
files managerdefault/Devices.*
class DeviceDescriptor
class DeviceVector
files managerdefault/Ports.*
class AudioPort
class AudioPortConfig
class AudioPatch
files managerdefault/IOProfile.*
class IOProfile
files managerdefault/HwModule.*
class HwModule
files managerdefault/AudioInputDescriptor.*
class AudioInputDescriptor
files managerdefault/AudioOutputDescriptor.*
class AudioOutputDescriptor
All files for libaudiopolicyservice are moved under service/
All files for libaudiopolicymanager are moved under manager/
Change-Id: I43758be1894e37d34db194b51a19ae24461e066e
diff --git a/services/audiopolicy/service/AudioPolicyService.h b/services/audiopolicy/service/AudioPolicyService.h
new file mode 100644
index 0000000..0378384
--- /dev/null
+++ b/services/audiopolicy/service/AudioPolicyService.h
@@ -0,0 +1,524 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIOPOLICYSERVICE_H
+#define ANDROID_AUDIOPOLICYSERVICE_H
+
+#include <cutils/misc.h>
+#include <cutils/config_utils.h>
+#include <cutils/compiler.h>
+#include <utils/String8.h>
+#include <utils/Vector.h>
+#include <utils/SortedVector.h>
+#include <binder/BinderService.h>
+#include <system/audio.h>
+#include <system/audio_policy.h>
+#include <hardware/audio_policy.h>
+#include <media/IAudioPolicyService.h>
+#include <media/ToneGenerator.h>
+#include <media/AudioEffect.h>
+#include <media/AudioPolicy.h>
+#ifdef USE_LEGACY_AUDIO_POLICY
+#include <hardware_legacy/AudioPolicyInterface.h>
+#endif
+#include "AudioPolicyEffects.h"
+#include "managerdefault/AudioPolicyManager.h"
+
+
+namespace android {
+
+// ----------------------------------------------------------------------------
+
+class AudioPolicyService :
+ public BinderService<AudioPolicyService>,
+ public BnAudioPolicyService,
+ public IBinder::DeathRecipient
+{
+ friend class BinderService<AudioPolicyService>;
+
+public:
+ // for BinderService
+ static const char *getServiceName() ANDROID_API { return "media.audio_policy"; }
+
+ virtual status_t dump(int fd, const Vector<String16>& args);
+
+ //
+ // BnAudioPolicyService (see AudioPolicyInterface for method descriptions)
+ //
+
+ virtual status_t setDeviceConnectionState(audio_devices_t device,
+ audio_policy_dev_state_t state,
+ const char *device_address,
+ const char *device_name);
+ virtual audio_policy_dev_state_t getDeviceConnectionState(
+ audio_devices_t device,
+ const char *device_address);
+ virtual status_t setPhoneState(audio_mode_t state);
+ virtual status_t setForceUse(audio_policy_force_use_t usage, audio_policy_forced_cfg_t config);
+ virtual audio_policy_forced_cfg_t getForceUse(audio_policy_force_use_t usage);
+ virtual audio_io_handle_t getOutput(audio_stream_type_t stream,
+ uint32_t samplingRate = 0,
+ audio_format_t format = AUDIO_FORMAT_DEFAULT,
+ audio_channel_mask_t channelMask = 0,
+ audio_output_flags_t flags =
+ AUDIO_OUTPUT_FLAG_NONE,
+ const audio_offload_info_t *offloadInfo = NULL);
+ virtual status_t getOutputForAttr(const audio_attributes_t *attr,
+ audio_io_handle_t *output,
+ audio_session_t session,
+ audio_stream_type_t *stream,
+ uint32_t samplingRate = 0,
+ audio_format_t format = AUDIO_FORMAT_DEFAULT,
+ audio_channel_mask_t channelMask = 0,
+ audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
+ const audio_offload_info_t *offloadInfo = NULL);
+ virtual status_t startOutput(audio_io_handle_t output,
+ audio_stream_type_t stream,
+ audio_session_t session);
+ virtual status_t stopOutput(audio_io_handle_t output,
+ audio_stream_type_t stream,
+ audio_session_t session);
+ virtual void releaseOutput(audio_io_handle_t output,
+ audio_stream_type_t stream,
+ audio_session_t session);
+ virtual status_t getInputForAttr(const audio_attributes_t *attr,
+ audio_io_handle_t *input,
+ audio_session_t session,
+ uint32_t samplingRate,
+ audio_format_t format,
+ audio_channel_mask_t channelMask,
+ audio_input_flags_t flags);
+ virtual status_t startInput(audio_io_handle_t input,
+ audio_session_t session);
+ virtual status_t stopInput(audio_io_handle_t input,
+ audio_session_t session);
+ virtual void releaseInput(audio_io_handle_t input,
+ audio_session_t session);
+ virtual status_t initStreamVolume(audio_stream_type_t stream,
+ int indexMin,
+ int indexMax);
+ virtual status_t setStreamVolumeIndex(audio_stream_type_t stream,
+ int index,
+ audio_devices_t device);
+ virtual status_t getStreamVolumeIndex(audio_stream_type_t stream,
+ int *index,
+ audio_devices_t device);
+
+ virtual uint32_t getStrategyForStream(audio_stream_type_t stream);
+ virtual audio_devices_t getDevicesForStream(audio_stream_type_t stream);
+
+ virtual audio_io_handle_t getOutputForEffect(const effect_descriptor_t *desc);
+ virtual status_t registerEffect(const effect_descriptor_t *desc,
+ audio_io_handle_t io,
+ uint32_t strategy,
+ int session,
+ int id);
+ virtual status_t unregisterEffect(int id);
+ virtual status_t setEffectEnabled(int id, bool enabled);
+ virtual bool isStreamActive(audio_stream_type_t stream, uint32_t inPastMs = 0) const;
+ virtual bool isStreamActiveRemotely(audio_stream_type_t stream, uint32_t inPastMs = 0) const;
+ virtual bool isSourceActive(audio_source_t source) const;
+
+ virtual status_t queryDefaultPreProcessing(int audioSession,
+ effect_descriptor_t *descriptors,
+ uint32_t *count);
+ virtual status_t onTransact(
+ uint32_t code,
+ const Parcel& data,
+ Parcel* reply,
+ uint32_t flags);
+
+ // IBinder::DeathRecipient
+ virtual void binderDied(const wp<IBinder>& who);
+
+ // RefBase
+ virtual void onFirstRef();
+
+ //
+ // Helpers for the struct audio_policy_service_ops implementation.
+ // This is used by the audio policy manager for certain operations that
+ // are implemented by the policy service.
+ //
+ virtual void setParameters(audio_io_handle_t ioHandle,
+ const char *keyValuePairs,
+ int delayMs);
+
+ virtual status_t setStreamVolume(audio_stream_type_t stream,
+ float volume,
+ audio_io_handle_t output,
+ int delayMs = 0);
+ virtual status_t startTone(audio_policy_tone_t tone, audio_stream_type_t stream);
+ virtual status_t stopTone();
+ virtual status_t setVoiceVolume(float volume, int delayMs = 0);
+ virtual bool isOffloadSupported(const audio_offload_info_t &config);
+
+ virtual status_t listAudioPorts(audio_port_role_t role,
+ audio_port_type_t type,
+ unsigned int *num_ports,
+ struct audio_port *ports,
+ unsigned int *generation);
+ virtual status_t getAudioPort(struct audio_port *port);
+ virtual status_t createAudioPatch(const struct audio_patch *patch,
+ audio_patch_handle_t *handle);
+ virtual status_t releaseAudioPatch(audio_patch_handle_t handle);
+ virtual status_t listAudioPatches(unsigned int *num_patches,
+ struct audio_patch *patches,
+ unsigned int *generation);
+ virtual status_t setAudioPortConfig(const struct audio_port_config *config);
+
+ virtual void registerClient(const sp<IAudioPolicyServiceClient>& client);
+
+ virtual status_t acquireSoundTriggerSession(audio_session_t *session,
+ audio_io_handle_t *ioHandle,
+ audio_devices_t *device);
+
+ virtual status_t releaseSoundTriggerSession(audio_session_t session);
+
+ virtual audio_mode_t getPhoneState();
+
+ virtual status_t registerPolicyMixes(Vector<AudioMix> mixes, bool registration);
+
+ status_t doStopOutput(audio_io_handle_t output,
+ audio_stream_type_t stream,
+ audio_session_t session);
+ void doReleaseOutput(audio_io_handle_t output,
+ audio_stream_type_t stream,
+ audio_session_t session);
+
+ status_t clientCreateAudioPatch(const struct audio_patch *patch,
+ audio_patch_handle_t *handle,
+ int delayMs);
+ status_t clientReleaseAudioPatch(audio_patch_handle_t handle,
+ int delayMs);
+ virtual status_t clientSetAudioPortConfig(const struct audio_port_config *config,
+ int delayMs);
+
+ void removeNotificationClient(uid_t uid);
+ void onAudioPortListUpdate();
+ void doOnAudioPortListUpdate();
+ void onAudioPatchListUpdate();
+ void doOnAudioPatchListUpdate();
+
+private:
+ AudioPolicyService() ANDROID_API;
+ virtual ~AudioPolicyService();
+
+ status_t dumpInternals(int fd);
+
+ // Thread used for tone playback and to send audio config commands to audio flinger
+ // For tone playback, using a separate thread is necessary to avoid deadlock with mLock because
+ // startTone() and stopTone() are normally called with mLock locked and requesting a tone start
+ // or stop will cause calls to AudioPolicyService and an attempt to lock mLock.
+ // For audio config commands, it is necessary because audio flinger requires that the calling
+ // process (user) has permission to modify audio settings.
+ class AudioCommandThread : public Thread {
+ class AudioCommand;
+ public:
+
+ // commands for tone AudioCommand
+ enum {
+ START_TONE,
+ STOP_TONE,
+ SET_VOLUME,
+ SET_PARAMETERS,
+ SET_VOICE_VOLUME,
+ STOP_OUTPUT,
+ RELEASE_OUTPUT,
+ CREATE_AUDIO_PATCH,
+ RELEASE_AUDIO_PATCH,
+ UPDATE_AUDIOPORT_LIST,
+ UPDATE_AUDIOPATCH_LIST,
+ SET_AUDIOPORT_CONFIG,
+ };
+
+ AudioCommandThread (String8 name, const wp<AudioPolicyService>& service);
+ virtual ~AudioCommandThread();
+
+ status_t dump(int fd);
+
+ // Thread virtuals
+ virtual void onFirstRef();
+ virtual bool threadLoop();
+
+ void exit();
+ void startToneCommand(ToneGenerator::tone_type type,
+ audio_stream_type_t stream);
+ void stopToneCommand();
+ status_t volumeCommand(audio_stream_type_t stream, float volume,
+ audio_io_handle_t output, int delayMs = 0);
+ status_t parametersCommand(audio_io_handle_t ioHandle,
+ const char *keyValuePairs, int delayMs = 0);
+ status_t voiceVolumeCommand(float volume, int delayMs = 0);
+ void stopOutputCommand(audio_io_handle_t output,
+ audio_stream_type_t stream,
+ audio_session_t session);
+ void releaseOutputCommand(audio_io_handle_t output,
+ audio_stream_type_t stream,
+ audio_session_t session);
+ status_t sendCommand(sp<AudioCommand>& command, int delayMs = 0);
+ void insertCommand_l(sp<AudioCommand>& command, int delayMs = 0);
+ status_t createAudioPatchCommand(const struct audio_patch *patch,
+ audio_patch_handle_t *handle,
+ int delayMs);
+ status_t releaseAudioPatchCommand(audio_patch_handle_t handle,
+ int delayMs);
+ void updateAudioPortListCommand();
+ void updateAudioPatchListCommand();
+ status_t setAudioPortConfigCommand(const struct audio_port_config *config,
+ int delayMs);
+ void insertCommand_l(AudioCommand *command, int delayMs = 0);
+
+ private:
+ class AudioCommandData;
+
+ // descriptor for requested tone playback event
+ class AudioCommand: public RefBase {
+
+ public:
+ AudioCommand()
+ : mCommand(-1), mStatus(NO_ERROR), mWaitStatus(false) {}
+
+ void dump(char* buffer, size_t size);
+
+ int mCommand; // START_TONE, STOP_TONE ...
+ nsecs_t mTime; // time stamp
+ Mutex mLock; // mutex associated to mCond
+ Condition mCond; // condition for status return
+ status_t mStatus; // command status
+ bool mWaitStatus; // true if caller is waiting for status
+ sp<AudioCommandData> mParam; // command specific parameter data
+ };
+
+ class AudioCommandData: public RefBase {
+ public:
+ virtual ~AudioCommandData() {}
+ protected:
+ AudioCommandData() {}
+ };
+
+ class ToneData : public AudioCommandData {
+ public:
+ ToneGenerator::tone_type mType; // tone type (START_TONE only)
+ audio_stream_type_t mStream; // stream type (START_TONE only)
+ };
+
+ class VolumeData : public AudioCommandData {
+ public:
+ audio_stream_type_t mStream;
+ float mVolume;
+ audio_io_handle_t mIO;
+ };
+
+ class ParametersData : public AudioCommandData {
+ public:
+ audio_io_handle_t mIO;
+ String8 mKeyValuePairs;
+ };
+
+ class VoiceVolumeData : public AudioCommandData {
+ public:
+ float mVolume;
+ };
+
+ class StopOutputData : public AudioCommandData {
+ public:
+ audio_io_handle_t mIO;
+ audio_stream_type_t mStream;
+ audio_session_t mSession;
+ };
+
+ class ReleaseOutputData : public AudioCommandData {
+ public:
+ audio_io_handle_t mIO;
+ audio_stream_type_t mStream;
+ audio_session_t mSession;
+ };
+
+ class CreateAudioPatchData : public AudioCommandData {
+ public:
+ struct audio_patch mPatch;
+ audio_patch_handle_t mHandle;
+ };
+
+ class ReleaseAudioPatchData : public AudioCommandData {
+ public:
+ audio_patch_handle_t mHandle;
+ };
+
+ class SetAudioPortConfigData : public AudioCommandData {
+ public:
+ struct audio_port_config mConfig;
+ };
+
+ Mutex mLock;
+ Condition mWaitWorkCV;
+ Vector < sp<AudioCommand> > mAudioCommands; // list of pending commands
+ ToneGenerator *mpToneGenerator; // the tone generator
+ sp<AudioCommand> mLastCommand; // last processed command (used by dump)
+ String8 mName; // string used by wake lock fo delayed commands
+ wp<AudioPolicyService> mService;
+ };
+
+ class AudioPolicyClient : public AudioPolicyClientInterface
+ {
+ public:
+ AudioPolicyClient(AudioPolicyService *service) : mAudioPolicyService(service) {}
+ virtual ~AudioPolicyClient() {}
+
+ //
+ // Audio HW module functions
+ //
+
+ // loads a HW module.
+ virtual audio_module_handle_t loadHwModule(const char *name);
+
+ //
+ // Audio output Control functions
+ //
+
+ // opens an audio output with the requested parameters. The parameter values can indicate to use the default values
+ // in case the audio policy manager has no specific requirements for the output being opened.
+ // When the function returns, the parameter values reflect the actual values used by the audio hardware output stream.
+ // The audio policy manager can check if the proposed parameters are suitable or not and act accordingly.
+ virtual status_t openOutput(audio_module_handle_t module,
+ audio_io_handle_t *output,
+ audio_config_t *config,
+ audio_devices_t *devices,
+ const String8& address,
+ uint32_t *latencyMs,
+ audio_output_flags_t flags);
+ // creates a special output that is duplicated to the two outputs passed as arguments. The duplication is performed by
+ // a special mixer thread in the AudioFlinger.
+ virtual audio_io_handle_t openDuplicateOutput(audio_io_handle_t output1, audio_io_handle_t output2);
+ // closes the output stream
+ virtual status_t closeOutput(audio_io_handle_t output);
+ // suspends the output. When an output is suspended, the corresponding audio hardware output stream is placed in
+ // standby and the AudioTracks attached to the mixer thread are still processed but the output mix is discarded.
+ virtual status_t suspendOutput(audio_io_handle_t output);
+ // restores a suspended output.
+ virtual status_t restoreOutput(audio_io_handle_t output);
+
+ //
+ // Audio input Control functions
+ //
+
+ // opens an audio input
+ virtual audio_io_handle_t openInput(audio_module_handle_t module,
+ audio_io_handle_t *input,
+ audio_config_t *config,
+ audio_devices_t *devices,
+ const String8& address,
+ audio_source_t source,
+ audio_input_flags_t flags);
+ // closes an audio input
+ virtual status_t closeInput(audio_io_handle_t input);
+ //
+ // misc control functions
+ //
+
+ // set a stream volume for a particular output. For the same user setting, a given stream type can have different volumes
+ // for each output (destination device) it is attached to.
+ virtual status_t setStreamVolume(audio_stream_type_t stream, float volume, audio_io_handle_t output, int delayMs = 0);
+
+ // invalidate a stream type, causing a reroute to an unspecified new output
+ virtual status_t invalidateStream(audio_stream_type_t stream);
+
+ // function enabling to send proprietary informations directly from audio policy manager to audio hardware interface.
+ virtual void setParameters(audio_io_handle_t ioHandle, const String8& keyValuePairs, int delayMs = 0);
+ // function enabling to receive proprietary informations directly from audio hardware interface to audio policy manager.
+ virtual String8 getParameters(audio_io_handle_t ioHandle, const String8& keys);
+
+ // request the playback of a tone on the specified stream: used for instance to replace notification sounds when playing
+ // over a telephony device during a phone call.
+ virtual status_t startTone(audio_policy_tone_t tone, audio_stream_type_t stream);
+ virtual status_t stopTone();
+
+ // set down link audio volume.
+ virtual status_t setVoiceVolume(float volume, int delayMs = 0);
+
+ // move effect to the specified output
+ virtual status_t moveEffects(int session,
+ audio_io_handle_t srcOutput,
+ audio_io_handle_t dstOutput);
+
+ /* Create a patch between several source and sink ports */
+ virtual status_t createAudioPatch(const struct audio_patch *patch,
+ audio_patch_handle_t *handle,
+ int delayMs);
+
+ /* Release a patch */
+ virtual status_t releaseAudioPatch(audio_patch_handle_t handle,
+ int delayMs);
+
+ /* Set audio port configuration */
+ virtual status_t setAudioPortConfig(const struct audio_port_config *config, int delayMs);
+
+ virtual void onAudioPortListUpdate();
+ virtual void onAudioPatchListUpdate();
+
+ virtual audio_unique_id_t newAudioUniqueId();
+
+ private:
+ AudioPolicyService *mAudioPolicyService;
+ };
+
+ // --- Notification Client ---
+ class NotificationClient : public IBinder::DeathRecipient {
+ public:
+ NotificationClient(const sp<AudioPolicyService>& service,
+ const sp<IAudioPolicyServiceClient>& client,
+ uid_t uid);
+ virtual ~NotificationClient();
+
+ void onAudioPortListUpdate();
+ void onAudioPatchListUpdate();
+
+ // IBinder::DeathRecipient
+ virtual void binderDied(const wp<IBinder>& who);
+
+ private:
+ NotificationClient(const NotificationClient&);
+ NotificationClient& operator = (const NotificationClient&);
+
+ const wp<AudioPolicyService> mService;
+ const uid_t mUid;
+ const sp<IAudioPolicyServiceClient> mAudioPolicyServiceClient;
+ };
+
+ // Internal dump utilities.
+ status_t dumpPermissionDenial(int fd);
+
+
+ mutable Mutex mLock; // prevents concurrent access to AudioPolicy manager functions changing
+ // device connection state or routing
+ sp<AudioCommandThread> mAudioCommandThread; // audio commands thread
+ sp<AudioCommandThread> mTonePlaybackThread; // tone playback thread
+ sp<AudioCommandThread> mOutputCommandThread; // process stop and release output
+ struct audio_policy_device *mpAudioPolicyDev;
+ struct audio_policy *mpAudioPolicy;
+ AudioPolicyInterface *mAudioPolicyManager;
+ AudioPolicyClient *mAudioPolicyClient;
+
+ DefaultKeyedVector< uid_t, sp<NotificationClient> > mNotificationClients;
+ Mutex mNotificationClientsLock; // protects mNotificationClients
+ // Manage all effects configured in audio_effects.conf
+ sp<AudioPolicyEffects> mAudioPolicyEffects;
+ audio_mode_t mPhoneState;
+};
+
+}; // namespace android
+
+#endif // ANDROID_AUDIOPOLICYSERVICE_H