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/*
* Copyright (C) 2015 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.
*/
#pragma once
#include <utils/RefBase.h>
#include <media/AudioPolicy.h>
#include <utils/KeyedVector.h>
#include <hardware/audio.h>
#include <utils/String8.h>
namespace android {
class AudioOutputDescriptor;
/**
* custom mix entry in mPolicyMixes
*/
class AudioPolicyMix : public RefBase {
public:
AudioPolicyMix() {}
const sp<AudioOutputDescriptor> &getOutput() const;
void setOutput(sp<AudioOutputDescriptor> &output);
void clearOutput();
android::AudioMix &getMix();
void setMix(AudioMix &mix);
private:
AudioMix mMix; // Audio policy mix descriptor
sp<AudioOutputDescriptor> mOutput; // Corresponding output stream
};
class AudioPolicyMixCollection : public DefaultKeyedVector<String8, sp<AudioPolicyMix> >
{
public:
status_t getAudioPolicyMix(String8 address, sp<AudioPolicyMix> &policyMix) const;
status_t registerMix(String8 address, AudioMix mix);
status_t unregisterMix(String8 address);
void closeOutput(sp<AudioOutputDescriptor> &desc);
/**
* Try to find an output descriptor for the given attributes.
*
* @param[in] attributes to consider for the research of output descriptor.
* @param[out] desc to return if an output could be found.
*
* @return NO_ERROR if an output was found for the given attribute (in this case, the
* descriptor output param is initialized), error code otherwise.
*/
status_t getOutputForAttr(audio_attributes_t attributes, sp<AudioOutputDescriptor> &desc);
audio_devices_t getDeviceAndMixForInputSource(audio_source_t inputSource,
audio_devices_t availableDeviceTypes,
AudioMix **policyMix);
status_t getInputMixForAttr(audio_attributes_t attr, AudioMix *&policyMix);
};
}; // namespace android
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