/*
* 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 <media/AudioPolicy.h>
#include <media/IAudioPolicyServiceClient.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,
const char *device_name) = 0;
virtual audio_policy_dev_state_t getDeviceConnectionState(audio_devices_t device,
const char *device_address) = 0;
virtual status_t handleDeviceConfigChange(audio_devices_t device,
const char *device_address,
const char *device_name) = 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,
const audio_offload_info_t *offloadInfo = NULL) = 0;
virtual status_t getOutputForAttr(const audio_attributes_t *attr,
audio_io_handle_t *output,
audio_session_t session,
audio_stream_type_t *stream,
uid_t uid,
const audio_config_t *config,
audio_output_flags_t flags,
audio_port_handle_t selectedDeviceId,
audio_port_handle_t *portId) = 0;
virtual status_t startOutput(audio_io_handle_t output,
audio_stream_type_t stream,
audio_session_t session) = 0;
virtual status_t stopOutput(audio_io_handle_t output,
audio_stream_type_t stream,
audio_session_t session) = 0;
virtual void releaseOutput(audio_io_handle_t output,
audio_stream_type_t stream,
audio_session_t session) = 0;
virtual status_t getInputForAttr(const audio_attributes_t *attr,
audio_io_handle_t *input,
audio_session_t session,
pid_t pid,
uid_t uid,
const audio_config_base_t *config,
audio_input_flags_t flags,
audio_port_handle_t selectedDeviceId,
audio_port_handle_t *portId) = 0;
virtual status_t startInput(audio_io_handle_t input,
audio_session_t session) = 0;
virtual status_t stopInput(audio_io_handle_t input,
audio_session_t session) = 0;
virtual void releaseInput(audio_io_handle_t input,
audio_session_t session) = 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,
audio_session_t 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 bool isStreamActiveRemotely(audio_stream_type_t stream, uint32_t inPastMs = 0)
const = 0;
virtual bool isSourceActive(audio_source_t source) const = 0;
virtual status_t queryDefaultPreProcessing(audio_session_t audioSession,
effect_descriptor_t *descriptors,
uint32_t *count) = 0;
// Check if offload is possible for given format, stream type, sample rate,
// bit rate, duration, video and streaming or offload property is enabled
virtual bool isOffloadSupported(const audio_offload_info_t& info) = 0;
/* List available audio ports and their attributes */
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) = 0;
/* Get attributes for a given audio port */
virtual status_t getAudioPort(struct audio_port *port) = 0;
/* Create an audio patch between several source and sink ports */
virtual status_t createAudioPatch(const struct audio_patch *patch,
audio_patch_handle_t *handle) = 0;
/* Release an audio patch */
virtual status_t releaseAudioPatch(audio_patch_handle_t handle) = 0;
/* List existing audio patches */
virtual status_t listAudioPatches(unsigned int *num_patches,
struct audio_patch *patches,
unsigned int *generation) = 0;
/* Set audio port configuration */
virtual status_t setAudioPortConfig(const struct audio_port_config *config) = 0;
virtual void registerClient(const sp<IAudioPolicyServiceClient>& client) = 0;
virtual void setAudioPortCallbacksEnabled(bool enabled) = 0;
virtual status_t acquireSoundTriggerSession(audio_session_t *session,
audio_io_handle_t *ioHandle,
audio_devices_t *device) = 0;
virtual status_t releaseSoundTriggerSession(audio_session_t session) = 0;
virtual audio_mode_t getPhoneState() = 0;
virtual status_t registerPolicyMixes(const Vector<AudioMix>& mixes, bool registration) = 0;
virtual status_t startAudioSource(const struct audio_port_config *source,
const audio_attributes_t *attributes,
audio_patch_handle_t *handle) = 0;
virtual status_t stopAudioSource(audio_patch_handle_t handle) = 0;
virtual status_t setMasterMono(bool mono) = 0;
virtual status_t getMasterMono(bool *mono) = 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