623 lines
29 KiB
C++
623 lines
29 KiB
C++
/*
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* Copyright (C) 2009 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_AUDIOPOLICYSERVICE_H
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#define ANDROID_AUDIOPOLICYSERVICE_H
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#include <cutils/misc.h>
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#include <cutils/config_utils.h>
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#include <cutils/compiler.h>
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#include <utils/String8.h>
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#include <utils/Vector.h>
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#include <utils/SortedVector.h>
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#include <binder/BinderService.h>
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#include <system/audio.h>
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#include <system/audio_policy.h>
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#include <hardware/audio_policy.h>
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#include <media/IAudioPolicyService.h>
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#include <media/ToneGenerator.h>
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#include <media/AudioEffect.h>
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#include <media/AudioPolicy.h>
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#ifdef USE_LEGACY_AUDIO_POLICY
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#include <hardware_legacy/AudioPolicyInterface.h>
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#endif
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#include "AudioPolicyEffects.h"
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#include "managerdefault/AudioPolicyManager.h"
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namespace android {
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// ----------------------------------------------------------------------------
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class AudioPolicyService :
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public BinderService<AudioPolicyService>,
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public BnAudioPolicyService,
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public IBinder::DeathRecipient
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{
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friend class BinderService<AudioPolicyService>;
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public:
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// for BinderService
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static const char *getServiceName() ANDROID_API { return "media.audio_policy"; }
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virtual status_t dump(int fd, const Vector<String16>& args);
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//
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// BnAudioPolicyService (see AudioPolicyInterface for method descriptions)
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//
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virtual status_t setDeviceConnectionState(audio_devices_t device,
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audio_policy_dev_state_t state,
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const char *device_address,
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const char *device_name);
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virtual audio_policy_dev_state_t getDeviceConnectionState(
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audio_devices_t device,
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const char *device_address);
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virtual status_t setPhoneState(audio_mode_t state);
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virtual status_t setForceUse(audio_policy_force_use_t usage, audio_policy_forced_cfg_t config);
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virtual audio_policy_forced_cfg_t getForceUse(audio_policy_force_use_t usage);
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virtual audio_io_handle_t getOutput(audio_stream_type_t stream,
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uint32_t samplingRate = 0,
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audio_format_t format = AUDIO_FORMAT_DEFAULT,
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audio_channel_mask_t channelMask = 0,
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audio_output_flags_t flags =
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AUDIO_OUTPUT_FLAG_NONE,
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const audio_offload_info_t *offloadInfo = NULL);
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virtual status_t getOutputForAttr(const audio_attributes_t *attr,
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audio_io_handle_t *output,
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audio_session_t session,
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audio_stream_type_t *stream,
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uid_t uid,
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uint32_t samplingRate = 0,
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audio_format_t format = AUDIO_FORMAT_DEFAULT,
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audio_channel_mask_t channelMask = 0,
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audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
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audio_port_handle_t selectedDeviceId = AUDIO_PORT_HANDLE_NONE,
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const audio_offload_info_t *offloadInfo = NULL);
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virtual status_t startOutput(audio_io_handle_t output,
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audio_stream_type_t stream,
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audio_session_t session);
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virtual status_t stopOutput(audio_io_handle_t output,
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audio_stream_type_t stream,
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audio_session_t session);
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virtual void releaseOutput(audio_io_handle_t output,
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audio_stream_type_t stream,
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audio_session_t session);
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virtual status_t getInputForAttr(const audio_attributes_t *attr,
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audio_io_handle_t *input,
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audio_session_t session,
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pid_t pid,
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uid_t uid,
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uint32_t samplingRate,
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audio_format_t format,
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audio_channel_mask_t channelMask,
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audio_input_flags_t flags,
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audio_port_handle_t selectedDeviceId = AUDIO_PORT_HANDLE_NONE);
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virtual status_t startInput(audio_io_handle_t input,
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audio_session_t session);
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virtual status_t stopInput(audio_io_handle_t input,
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audio_session_t session);
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virtual void releaseInput(audio_io_handle_t input,
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audio_session_t session);
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virtual status_t initStreamVolume(audio_stream_type_t stream,
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int indexMin,
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int indexMax);
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virtual status_t setStreamVolumeIndex(audio_stream_type_t stream,
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int index,
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audio_devices_t device);
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virtual status_t getStreamVolumeIndex(audio_stream_type_t stream,
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int *index,
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audio_devices_t device);
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virtual uint32_t getStrategyForStream(audio_stream_type_t stream);
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virtual audio_devices_t getDevicesForStream(audio_stream_type_t stream);
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virtual audio_io_handle_t getOutputForEffect(const effect_descriptor_t *desc);
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virtual status_t registerEffect(const effect_descriptor_t *desc,
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audio_io_handle_t io,
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uint32_t strategy,
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audio_session_t session,
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int id);
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virtual status_t unregisterEffect(int id);
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virtual status_t setEffectEnabled(int id, bool enabled);
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virtual bool isStreamActive(audio_stream_type_t stream, uint32_t inPastMs = 0) const;
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virtual bool isStreamActiveRemotely(audio_stream_type_t stream, uint32_t inPastMs = 0) const;
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virtual bool isSourceActive(audio_source_t source) const;
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virtual status_t queryDefaultPreProcessing(audio_session_t audioSession,
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effect_descriptor_t *descriptors,
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uint32_t *count);
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virtual status_t onTransact(
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uint32_t code,
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const Parcel& data,
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Parcel* reply,
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uint32_t flags);
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// IBinder::DeathRecipient
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virtual void binderDied(const wp<IBinder>& who);
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// RefBase
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virtual void onFirstRef();
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//
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// Helpers for the struct audio_policy_service_ops implementation.
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// This is used by the audio policy manager for certain operations that
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// are implemented by the policy service.
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//
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virtual void setParameters(audio_io_handle_t ioHandle,
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const char *keyValuePairs,
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int delayMs);
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virtual status_t setStreamVolume(audio_stream_type_t stream,
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float volume,
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audio_io_handle_t output,
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int delayMs = 0);
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virtual status_t startTone(audio_policy_tone_t tone, audio_stream_type_t stream);
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virtual status_t stopTone();
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virtual status_t setVoiceVolume(float volume, int delayMs = 0);
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virtual bool isOffloadSupported(const audio_offload_info_t &config);
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virtual status_t listAudioPorts(audio_port_role_t role,
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audio_port_type_t type,
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unsigned int *num_ports,
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struct audio_port *ports,
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unsigned int *generation);
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virtual status_t getAudioPort(struct audio_port *port);
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virtual status_t createAudioPatch(const struct audio_patch *patch,
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audio_patch_handle_t *handle);
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virtual status_t releaseAudioPatch(audio_patch_handle_t handle);
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virtual status_t listAudioPatches(unsigned int *num_patches,
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struct audio_patch *patches,
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unsigned int *generation);
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virtual status_t setAudioPortConfig(const struct audio_port_config *config);
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virtual void registerClient(const sp<IAudioPolicyServiceClient>& client);
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virtual void setAudioPortCallbacksEnabled(bool enabled);
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virtual status_t acquireSoundTriggerSession(audio_session_t *session,
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audio_io_handle_t *ioHandle,
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audio_devices_t *device);
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virtual status_t releaseSoundTriggerSession(audio_session_t session);
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virtual audio_mode_t getPhoneState();
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virtual status_t registerPolicyMixes(Vector<AudioMix> mixes, bool registration);
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virtual status_t startAudioSource(const struct audio_port_config *source,
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const audio_attributes_t *attributes,
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audio_io_handle_t *handle);
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virtual status_t stopAudioSource(audio_io_handle_t handle);
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virtual status_t setMasterMono(bool mono);
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virtual status_t getMasterMono(bool *mono);
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virtual status_t listAudioSessions(audio_stream_type_t stream,
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Vector< sp<AudioSessionInfo>>& sessions);
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status_t doStartOutput(audio_io_handle_t output,
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audio_stream_type_t stream,
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audio_session_t session);
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status_t doStopOutput(audio_io_handle_t output,
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audio_stream_type_t stream,
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audio_session_t session);
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void doReleaseOutput(audio_io_handle_t output,
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audio_stream_type_t stream,
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audio_session_t session);
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status_t clientCreateAudioPatch(const struct audio_patch *patch,
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audio_patch_handle_t *handle,
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int delayMs);
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status_t clientReleaseAudioPatch(audio_patch_handle_t handle,
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int delayMs);
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virtual status_t clientSetAudioPortConfig(const struct audio_port_config *config,
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int delayMs);
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void removeNotificationClient(uid_t uid);
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void onAudioPortListUpdate();
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void doOnAudioPortListUpdate();
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void onAudioPatchListUpdate();
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void doOnAudioPatchListUpdate();
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void onDynamicPolicyMixStateUpdate(String8 regId, int32_t state);
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void doOnDynamicPolicyMixStateUpdate(String8 regId, int32_t state);
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void onRecordingConfigurationUpdate(int event, audio_session_t session,
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audio_source_t source, const audio_config_base_t *clientConfig,
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const audio_config_base_t *deviceConfig, audio_patch_handle_t patchHandle);
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void doOnRecordingConfigurationUpdate(int event, audio_session_t session,
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audio_source_t source, const audio_config_base_t *clientConfig,
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const audio_config_base_t *deviceConfig, audio_patch_handle_t patchHandle);
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void onOutputSessionEffectsUpdate(sp<AudioSessionInfo>& info, bool added);
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void doOnOutputSessionEffectsUpdate(sp<AudioSessionInfo>& info, bool added);
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private:
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AudioPolicyService() ANDROID_API;
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virtual ~AudioPolicyService();
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status_t dumpInternals(int fd);
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// Thread used for tone playback and to send audio config commands to audio flinger
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// For tone playback, using a separate thread is necessary to avoid deadlock with mLock because
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// startTone() and stopTone() are normally called with mLock locked and requesting a tone start
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// or stop will cause calls to AudioPolicyService and an attempt to lock mLock.
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// For audio config commands, it is necessary because audio flinger requires that the calling
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// process (user) has permission to modify audio settings.
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class AudioCommandThread : public Thread {
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class AudioCommand;
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public:
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// commands for tone AudioCommand
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enum {
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START_TONE,
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STOP_TONE,
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SET_VOLUME,
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SET_PARAMETERS,
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SET_VOICE_VOLUME,
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START_OUTPUT,
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STOP_OUTPUT,
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RELEASE_OUTPUT,
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CREATE_AUDIO_PATCH,
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RELEASE_AUDIO_PATCH,
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UPDATE_AUDIOPORT_LIST,
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UPDATE_AUDIOPATCH_LIST,
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SET_AUDIOPORT_CONFIG,
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DYN_POLICY_MIX_STATE_UPDATE,
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RECORDING_CONFIGURATION_UPDATE,
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EFFECT_SESSION_UPDATE,
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};
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AudioCommandThread (String8 name, const wp<AudioPolicyService>& service);
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virtual ~AudioCommandThread();
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status_t dump(int fd);
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// Thread virtuals
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virtual void onFirstRef();
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virtual bool threadLoop();
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void exit();
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void startToneCommand(ToneGenerator::tone_type type,
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audio_stream_type_t stream);
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void stopToneCommand();
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status_t volumeCommand(audio_stream_type_t stream, float volume,
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audio_io_handle_t output, int delayMs = 0);
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status_t parametersCommand(audio_io_handle_t ioHandle,
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const char *keyValuePairs, int delayMs = 0);
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status_t voiceVolumeCommand(float volume, int delayMs = 0);
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status_t startOutputCommand(audio_io_handle_t output,
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audio_stream_type_t stream,
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audio_session_t session);
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void stopOutputCommand(audio_io_handle_t output,
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audio_stream_type_t stream,
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audio_session_t session);
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void releaseOutputCommand(audio_io_handle_t output,
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audio_stream_type_t stream,
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audio_session_t session);
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status_t sendCommand(sp<AudioCommand>& command, int delayMs = 0);
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void insertCommand_l(sp<AudioCommand>& command, int delayMs = 0);
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status_t createAudioPatchCommand(const struct audio_patch *patch,
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audio_patch_handle_t *handle,
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int delayMs);
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status_t releaseAudioPatchCommand(audio_patch_handle_t handle,
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int delayMs);
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void updateAudioPortListCommand();
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void updateAudioPatchListCommand();
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status_t setAudioPortConfigCommand(const struct audio_port_config *config,
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int delayMs);
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void dynamicPolicyMixStateUpdateCommand(String8 regId, int32_t state);
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void recordingConfigurationUpdateCommand(
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int event, audio_session_t session,
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audio_source_t source,
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const audio_config_base_t *clientConfig,
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const audio_config_base_t *deviceConfig,
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audio_patch_handle_t patchHandle);
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void insertCommand_l(AudioCommand *command, int delayMs = 0);
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void effectSessionUpdateCommand(sp<AudioSessionInfo>& info, bool added);
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private:
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class AudioCommandData;
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// descriptor for requested tone playback event
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class AudioCommand: public RefBase {
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public:
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AudioCommand()
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: mCommand(-1), mStatus(NO_ERROR), mWaitStatus(false) {}
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void dump(char* buffer, size_t size);
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int mCommand; // START_TONE, STOP_TONE ...
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nsecs_t mTime; // time stamp
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Mutex mLock; // mutex associated to mCond
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Condition mCond; // condition for status return
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status_t mStatus; // command status
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bool mWaitStatus; // true if caller is waiting for status
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sp<AudioCommandData> mParam; // command specific parameter data
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};
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class AudioCommandData: public RefBase {
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public:
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virtual ~AudioCommandData() {}
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protected:
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AudioCommandData() {}
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};
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class ToneData : public AudioCommandData {
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public:
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ToneGenerator::tone_type mType; // tone type (START_TONE only)
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audio_stream_type_t mStream; // stream type (START_TONE only)
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};
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class VolumeData : public AudioCommandData {
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public:
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audio_stream_type_t mStream;
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float mVolume;
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audio_io_handle_t mIO;
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};
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class ParametersData : public AudioCommandData {
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public:
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audio_io_handle_t mIO;
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String8 mKeyValuePairs;
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};
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class VoiceVolumeData : public AudioCommandData {
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public:
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float mVolume;
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};
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class StartOutputData : public AudioCommandData {
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public:
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audio_io_handle_t mIO;
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audio_stream_type_t mStream;
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audio_session_t mSession;
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};
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class StopOutputData : public AudioCommandData {
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public:
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audio_io_handle_t mIO;
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audio_stream_type_t mStream;
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audio_session_t mSession;
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};
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class ReleaseOutputData : public AudioCommandData {
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public:
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audio_io_handle_t mIO;
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audio_stream_type_t mStream;
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audio_session_t mSession;
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};
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class CreateAudioPatchData : public AudioCommandData {
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public:
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struct audio_patch mPatch;
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audio_patch_handle_t mHandle;
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};
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class ReleaseAudioPatchData : public AudioCommandData {
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public:
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audio_patch_handle_t mHandle;
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};
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class SetAudioPortConfigData : public AudioCommandData {
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public:
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struct audio_port_config mConfig;
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};
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class DynPolicyMixStateUpdateData : public AudioCommandData {
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public:
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String8 mRegId;
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int32_t mState;
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};
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class RecordingConfigurationUpdateData : public AudioCommandData {
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public:
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int mEvent;
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audio_session_t mSession;
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audio_source_t mSource;
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struct audio_config_base mClientConfig;
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struct audio_config_base mDeviceConfig;
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audio_patch_handle_t mPatchHandle;
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};
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class EffectSessionUpdateData : public AudioCommandData {
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public:
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sp<AudioSessionInfo> mAudioSessionInfo;
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bool mAdded;
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};
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Mutex mLock;
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Condition mWaitWorkCV;
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Vector < sp<AudioCommand> > mAudioCommands; // list of pending commands
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ToneGenerator *mpToneGenerator; // the tone generator
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sp<AudioCommand> mLastCommand; // last processed command (used by dump)
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String8 mName; // string used by wake lock fo delayed commands
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wp<AudioPolicyService> mService;
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};
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class AudioPolicyClient : public AudioPolicyClientInterface
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{
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public:
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AudioPolicyClient(AudioPolicyService *service) : mAudioPolicyService(service) {}
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virtual ~AudioPolicyClient() {}
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//
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// Audio HW module functions
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//
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// loads a HW module.
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virtual audio_module_handle_t loadHwModule(const char *name);
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//
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// Audio output Control functions
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//
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// opens an audio output with the requested parameters. The parameter values can indicate to use the default values
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// in case the audio policy manager has no specific requirements for the output being opened.
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// When the function returns, the parameter values reflect the actual values used by the audio hardware output stream.
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// The audio policy manager can check if the proposed parameters are suitable or not and act accordingly.
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virtual status_t openOutput(audio_module_handle_t module,
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audio_io_handle_t *output,
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audio_config_t *config,
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audio_devices_t *devices,
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const String8& address,
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uint32_t *latencyMs,
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audio_output_flags_t flags);
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// creates a special output that is duplicated to the two outputs passed as arguments. The duplication is performed by
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// a special mixer thread in the AudioFlinger.
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virtual audio_io_handle_t openDuplicateOutput(audio_io_handle_t output1, audio_io_handle_t output2);
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// closes the output stream
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virtual status_t closeOutput(audio_io_handle_t output);
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// suspends the output. When an output is suspended, the corresponding audio hardware output stream is placed in
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// standby and the AudioTracks attached to the mixer thread are still processed but the output mix is discarded.
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virtual status_t suspendOutput(audio_io_handle_t output);
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// restores a suspended output.
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virtual status_t restoreOutput(audio_io_handle_t output);
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//
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// Audio input Control functions
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//
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// opens an audio input
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virtual audio_io_handle_t openInput(audio_module_handle_t module,
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audio_io_handle_t *input,
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audio_config_t *config,
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audio_devices_t *devices,
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const String8& address,
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audio_source_t source,
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audio_input_flags_t flags);
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// closes an audio input
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virtual status_t closeInput(audio_io_handle_t input);
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//
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// misc control functions
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//
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// set a stream volume for a particular output. For the same user setting, a given stream type can have different volumes
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// for each output (destination device) it is attached to.
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virtual status_t setStreamVolume(audio_stream_type_t stream, float volume, audio_io_handle_t output, int delayMs = 0);
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// invalidate a stream type, causing a reroute to an unspecified new output
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virtual status_t invalidateStream(audio_stream_type_t stream);
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// function enabling to send proprietary informations directly from audio policy manager to audio hardware interface.
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virtual void setParameters(audio_io_handle_t ioHandle, const String8& keyValuePairs, int delayMs = 0);
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// function enabling to receive proprietary informations directly from audio hardware interface to audio policy manager.
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virtual String8 getParameters(audio_io_handle_t ioHandle, const String8& keys);
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// request the playback of a tone on the specified stream: used for instance to replace notification sounds when playing
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// over a telephony device during a phone call.
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virtual status_t startTone(audio_policy_tone_t tone, audio_stream_type_t stream);
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virtual status_t stopTone();
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// set down link audio volume.
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virtual status_t setVoiceVolume(float volume, int delayMs = 0);
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// move effect to the specified output
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virtual status_t moveEffects(audio_session_t session,
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audio_io_handle_t srcOutput,
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audio_io_handle_t dstOutput);
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/* Create a patch between several source and sink ports */
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virtual status_t createAudioPatch(const struct audio_patch *patch,
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audio_patch_handle_t *handle,
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int delayMs);
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/* Release a patch */
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virtual status_t releaseAudioPatch(audio_patch_handle_t handle,
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int delayMs);
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|
|
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/* Set audio port configuration */
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virtual status_t setAudioPortConfig(const struct audio_port_config *config, int delayMs);
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|
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virtual void onAudioPortListUpdate();
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virtual void onAudioPatchListUpdate();
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virtual void onDynamicPolicyMixStateUpdate(String8 regId, int32_t state);
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virtual void onRecordingConfigurationUpdate(int event,
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audio_session_t session, audio_source_t source,
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const audio_config_base_t *clientConfig,
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const audio_config_base_t *deviceConfig, audio_patch_handle_t patchHandle);
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|
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virtual audio_unique_id_t newAudioUniqueId(audio_unique_id_use_t use);
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|
|
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virtual void onOutputSessionEffectsUpdate(sp<AudioSessionInfo>& info, bool added);
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|
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private:
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|
AudioPolicyService *mAudioPolicyService;
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|
};
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|
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// --- Notification Client ---
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|
class NotificationClient : public IBinder::DeathRecipient {
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public:
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|
NotificationClient(const sp<AudioPolicyService>& service,
|
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const sp<IAudioPolicyServiceClient>& client,
|
|
uid_t uid);
|
|
virtual ~NotificationClient();
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|
|
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void onAudioPortListUpdate();
|
|
void onAudioPatchListUpdate();
|
|
void onDynamicPolicyMixStateUpdate(String8 regId, int32_t state);
|
|
void onRecordingConfigurationUpdate(
|
|
int event, audio_session_t session,
|
|
audio_source_t source,
|
|
const audio_config_base_t *clientConfig,
|
|
const audio_config_base_t *deviceConfig,
|
|
audio_patch_handle_t patchHandle);
|
|
void setAudioPortCallbacksEnabled(bool enabled);
|
|
void onOutputSessionEffectsUpdate(sp<AudioSessionInfo>& info,
|
|
bool added);
|
|
// 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;
|
|
bool mAudioPortCallbacksEnabled;
|
|
};
|
|
|
|
// Internal dump utilities.
|
|
status_t dumpPermissionDenial(int fd);
|
|
|
|
|
|
mutable Mutex mLock; // prevents concurrent access to AudioPolicy manager functions changing
|
|
// device connection state or routing
|
|
mutable Mutex mEffectsLock; // serialize access to Effect state within APM.
|
|
// Note: lock acquisition order is always mLock > mEffectsLock:
|
|
// mLock protects AudioPolicyManager methods that can call into audio flinger
|
|
// and possibly back in to audio policy service and acquire mEffectsLock.
|
|
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
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#endif // ANDROID_AUDIOPOLICYSERVICE_H
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