6752ec80b2
Before this change, CPU and memory usage for an audio effect were registered and checked against the limit by audio policy manager upon effect instantiation. Even if an effect was not enabled it would prevent another effect to be created if the CPU load budget was exceeded, which was too restrictive. This change adds a method to register/unregister CPU load only when an effect is enabled or disabled. It also adds a mechanism to place all effects on the global output mix in suspend state (disabled) when an effect is enabled on a specific session. This will allow applications using session effects to have the priority over others using global effects. Also fixes some issues with suspend/restore mechanism: - avoid taking actions when an effect is disconnected and was not enabled. - do not remove a session from the suspended sessions list when corresponding effect chain is destroyed. Change-Id: I5225278aba1ae13d0d0997bfe26a0c9fb46b17d3
111 lines
5.0 KiB
C++
111 lines
5.0 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_IAUDIOPOLICYSERVICE_H
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#define ANDROID_IAUDIOPOLICYSERVICE_H
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#include <stdint.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <utils/RefBase.h>
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#include <utils/Errors.h>
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#include <binder/IInterface.h>
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#include <media/AudioSystem.h>
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#include <system/audio_policy.h>
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namespace android {
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// ----------------------------------------------------------------------------
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class IAudioPolicyService : public IInterface
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{
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public:
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DECLARE_META_INTERFACE(AudioPolicyService);
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//
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// IAudioPolicyService interface (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) = 0;
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virtual audio_policy_dev_state_t getDeviceConnectionState(audio_devices_t device,
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const char *device_address) = 0;
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virtual status_t setPhoneState(int state) = 0;
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virtual status_t setRingerMode(uint32_t mode, uint32_t mask) = 0;
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virtual status_t setForceUse(audio_policy_force_use_t usage, audio_policy_forced_cfg_t config) = 0;
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virtual audio_policy_forced_cfg_t getForceUse(audio_policy_force_use_t usage) = 0;
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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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uint32_t format = AUDIO_FORMAT_DEFAULT,
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uint32_t channels = 0,
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audio_policy_output_flags_t flags = AUDIO_POLICY_OUTPUT_FLAG_INDIRECT) = 0;
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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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int session = 0) = 0;
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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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int session = 0) = 0;
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virtual void releaseOutput(audio_io_handle_t output) = 0;
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virtual audio_io_handle_t getInput(int inputSource,
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uint32_t samplingRate = 0,
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uint32_t format = AUDIO_FORMAT_DEFAULT,
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uint32_t channels = 0,
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audio_in_acoustics_t acoustics = (audio_in_acoustics_t)0,
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int audioSession = 0) = 0;
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virtual status_t startInput(audio_io_handle_t input) = 0;
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virtual status_t stopInput(audio_io_handle_t input) = 0;
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virtual void releaseInput(audio_io_handle_t input) = 0;
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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) = 0;
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virtual status_t setStreamVolumeIndex(audio_stream_type_t stream, int index) = 0;
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virtual status_t getStreamVolumeIndex(audio_stream_type_t stream, int *index) = 0;
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virtual uint32_t getStrategyForStream(audio_stream_type_t stream) = 0;
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virtual uint32_t getDevicesForStream(audio_stream_type_t stream) = 0;
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virtual audio_io_handle_t getOutputForEffect(effect_descriptor_t *desc) = 0;
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virtual status_t registerEffect(effect_descriptor_t *desc,
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audio_io_handle_t io,
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uint32_t strategy,
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int session,
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int id) = 0;
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virtual status_t unregisterEffect(int id) = 0;
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virtual status_t setEffectEnabled(int id, bool enabled) = 0;
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virtual bool isStreamActive(int stream, uint32_t inPastMs = 0) const = 0;
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virtual status_t queryDefaultPreProcessing(int audioSession,
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effect_descriptor_t *descriptors,
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uint32_t *count) = 0;
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};
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// ----------------------------------------------------------------------------
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class BnAudioPolicyService : public BnInterface<IAudioPolicyService>
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{
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public:
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virtual status_t onTransact( uint32_t code,
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const Parcel& data,
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Parcel* reply,
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uint32_t flags = 0);
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};
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// ----------------------------------------------------------------------------
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}; // namespace android
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#endif // ANDROID_IAUDIOPOLICYSERVICE_H
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