IAudioPolicyService.h revision 3030fcefcfcfc48789612659206b957cd0489a54
1/* 2 * Copyright (C) 2009 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#ifndef ANDROID_IAUDIOPOLICYSERVICE_H 18#define ANDROID_IAUDIOPOLICYSERVICE_H 19 20#include <stdint.h> 21#include <sys/types.h> 22#include <unistd.h> 23 24#include <utils/RefBase.h> 25#include <utils/Errors.h> 26#include <binder/IInterface.h> 27#include <media/AudioSystem.h> 28 29#include <system/audio_policy.h> 30 31namespace android { 32 33// ---------------------------------------------------------------------------- 34 35class IAudioPolicyService : public IInterface 36{ 37public: 38 DECLARE_META_INTERFACE(AudioPolicyService); 39 40 // 41 // IAudioPolicyService interface (see AudioPolicyInterface for method descriptions) 42 // 43 virtual status_t setDeviceConnectionState(audio_devices_t device, 44 audio_policy_dev_state_t state, 45 const char *device_address) = 0; 46 virtual audio_policy_dev_state_t getDeviceConnectionState(audio_devices_t device, 47 const char *device_address) = 0; 48 virtual status_t setPhoneState(audio_mode_t state) = 0; 49 virtual status_t setForceUse(audio_policy_force_use_t usage, audio_policy_forced_cfg_t config) = 0; 50 virtual audio_policy_forced_cfg_t getForceUse(audio_policy_force_use_t usage) = 0; 51 virtual audio_io_handle_t getOutput(audio_stream_type_t stream, 52 uint32_t samplingRate = 0, 53 audio_format_t format = AUDIO_FORMAT_DEFAULT, 54 uint32_t channels = 0, 55 audio_policy_output_flags_t flags = AUDIO_POLICY_OUTPUT_FLAG_NONE) = 0; 56 virtual status_t startOutput(audio_io_handle_t output, 57 audio_stream_type_t stream, 58 int session = 0) = 0; 59 virtual status_t stopOutput(audio_io_handle_t output, 60 audio_stream_type_t stream, 61 int session = 0) = 0; 62 virtual void releaseOutput(audio_io_handle_t output) = 0; 63 virtual audio_io_handle_t getInput(audio_source_t inputSource, 64 uint32_t samplingRate = 0, 65 audio_format_t format = AUDIO_FORMAT_DEFAULT, 66 uint32_t channels = 0, 67 audio_in_acoustics_t acoustics = (audio_in_acoustics_t)0, 68 int audioSession = 0) = 0; 69 virtual status_t startInput(audio_io_handle_t input) = 0; 70 virtual status_t stopInput(audio_io_handle_t input) = 0; 71 virtual void releaseInput(audio_io_handle_t input) = 0; 72 virtual status_t initStreamVolume(audio_stream_type_t stream, 73 int indexMin, 74 int indexMax) = 0; 75 virtual status_t setStreamVolumeIndex(audio_stream_type_t stream, 76 int index, 77 audio_devices_t device) = 0; 78 virtual status_t getStreamVolumeIndex(audio_stream_type_t stream, 79 int *index, 80 audio_devices_t device) = 0; 81 virtual uint32_t getStrategyForStream(audio_stream_type_t stream) = 0; 82 virtual uint32_t getDevicesForStream(audio_stream_type_t stream) = 0; 83 virtual audio_io_handle_t getOutputForEffect(effect_descriptor_t *desc) = 0; 84 virtual status_t registerEffect(effect_descriptor_t *desc, 85 audio_io_handle_t io, 86 uint32_t strategy, 87 int session, 88 int id) = 0; 89 virtual status_t unregisterEffect(int id) = 0; 90 virtual status_t setEffectEnabled(int id, bool enabled) = 0; 91 virtual bool isStreamActive(audio_stream_type_t stream, uint32_t inPastMs = 0) const = 0; 92 virtual status_t queryDefaultPreProcessing(int audioSession, 93 effect_descriptor_t *descriptors, 94 uint32_t *count) = 0; 95}; 96 97 98// ---------------------------------------------------------------------------- 99 100class BnAudioPolicyService : public BnInterface<IAudioPolicyService> 101{ 102public: 103 virtual status_t onTransact( uint32_t code, 104 const Parcel& data, 105 Parcel* reply, 106 uint32_t flags = 0); 107}; 108 109// ---------------------------------------------------------------------------- 110 111}; // namespace android 112 113#endif // ANDROID_IAUDIOPOLICYSERVICE_H 114