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/*
* 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_IAUDIOPOLICYSERVICE_H
#define ANDROID_IAUDIOPOLICYSERVICE_H
#include <stdint.h>
#include <sys/types.h>
#include <unistd.h>
#include <utils/RefBase.h>
#include <utils/Errors.h>
#include <binder/IInterface.h>
#include <media/AudioSystem.h>
#include <system/audio_policy.h>
namespace android {
// ----------------------------------------------------------------------------
class IAudioPolicyService : public IInterface
{
public:
DECLARE_META_INTERFACE(AudioPolicyService);
//
// IAudioPolicyService interface (see AudioPolicyInterface for method descriptions)
//
virtual status_t setDeviceConnectionState(audio_devices_t device,
audio_policy_dev_state_t state,
const char *device_address) = 0;
virtual audio_policy_dev_state_t getDeviceConnectionState(audio_devices_t device,
const char *device_address) = 0;
virtual status_t setPhoneState(audio_mode_t state) = 0;
virtual status_t setForceUse(audio_policy_force_use_t usage, audio_policy_forced_cfg_t config) = 0;
virtual audio_policy_forced_cfg_t getForceUse(audio_policy_force_use_t usage) = 0;
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) = 0;
virtual status_t startOutput(audio_io_handle_t output,
audio_stream_type_t stream,
int session = 0) = 0;
virtual status_t stopOutput(audio_io_handle_t output,
audio_stream_type_t stream,
int session = 0) = 0;
virtual void releaseOutput(audio_io_handle_t output) = 0;
virtual audio_io_handle_t getInput(audio_source_t inputSource,
uint32_t samplingRate = 0,
audio_format_t format = AUDIO_FORMAT_DEFAULT,
audio_channel_mask_t channelMask = 0,
int audioSession = 0) = 0;
virtual status_t startInput(audio_io_handle_t input) = 0;
virtual status_t stopInput(audio_io_handle_t input) = 0;
virtual void releaseInput(audio_io_handle_t input) = 0;
virtual status_t initStreamVolume(audio_stream_type_t stream,
int indexMin,
int indexMax) = 0;
virtual status_t setStreamVolumeIndex(audio_stream_type_t stream,
int index,
audio_devices_t device) = 0;
virtual status_t getStreamVolumeIndex(audio_stream_type_t stream,
int *index,
audio_devices_t device) = 0;
virtual uint32_t getStrategyForStream(audio_stream_type_t stream) = 0;
virtual audio_devices_t getDevicesForStream(audio_stream_type_t stream) = 0;
virtual audio_io_handle_t getOutputForEffect(const effect_descriptor_t *desc) = 0;
virtual status_t registerEffect(const effect_descriptor_t *desc,
audio_io_handle_t io,
uint32_t strategy,
int session,
int id) = 0;
virtual status_t unregisterEffect(int id) = 0;
virtual status_t setEffectEnabled(int id, bool enabled) = 0;
virtual bool isStreamActive(audio_stream_type_t stream, uint32_t inPastMs = 0) const = 0;
virtual status_t queryDefaultPreProcessing(int audioSession,
effect_descriptor_t *descriptors,
uint32_t *count) = 0;
};
// ----------------------------------------------------------------------------
class BnAudioPolicyService : public BnInterface<IAudioPolicyService>
{
public:
virtual status_t onTransact( uint32_t code,
const Parcel& data,
Parcel* reply,
uint32_t flags = 0);
};
// ----------------------------------------------------------------------------
}; // namespace android
#endif // ANDROID_IAUDIOPOLICYSERVICE_H
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