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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 <Volume.h>
#include <utils/KeyedVector.h>
#include <utils/StrongPointer.h>
#include <utils/SortedVector.h>
#include <hardware/audio.h>
namespace android {
// stream descriptor used for volume control
class StreamDescriptor
{
public:
StreamDescriptor();
int getVolumeIndex(audio_devices_t device) const;
bool canBeMuted() const { return mCanBeMuted; }
void clearCurrentVolumeIndex();
void addCurrentVolumeIndex(audio_devices_t device, int index);
int getVolumeIndexMin() const { return mIndexMin; }
int getVolumeIndexMax() const { return mIndexMax; }
void setVolumeIndexMin(int volIndexMin);
void setVolumeIndexMax(int volIndexMax);
void dump(int fd) const;
void setVolumeCurvePoint(Volume::device_category deviceCategory, const VolumeCurvePoint *point);
const VolumeCurvePoint *getVolumeCurvePoint(Volume::device_category deviceCategory) const
{
return mVolumeCurve[deviceCategory];
}
private:
const VolumeCurvePoint *mVolumeCurve[Volume::DEVICE_CATEGORY_CNT];
KeyedVector<audio_devices_t, int> mIndexCur; /**< current volume index per device. */
int mIndexMin; /**< min volume index. */
int mIndexMax; /**< max volume index. */
bool mCanBeMuted; /**< true is the stream can be muted. */
};
/**
* stream descriptors collection for volume control
*/
class StreamDescriptorCollection : public DefaultKeyedVector<audio_stream_type_t, StreamDescriptor>
{
public:
StreamDescriptorCollection();
void clearCurrentVolumeIndex(audio_stream_type_t stream);
void addCurrentVolumeIndex(audio_stream_type_t stream, audio_devices_t device, int index);
bool canBeMuted(audio_stream_type_t stream);
status_t dump(int fd) const;
void setVolumeCurvePoint(audio_stream_type_t stream,
Volume::device_category deviceCategory,
const VolumeCurvePoint *point);
const VolumeCurvePoint *getVolumeCurvePoint(audio_stream_type_t stream,
Volume::device_category deviceCategory) const;
void setVolumeIndexMin(audio_stream_type_t stream,int volIndexMin);
void setVolumeIndexMax(audio_stream_type_t stream,int volIndexMax);
};
}; // namespace android
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