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/*
* Copyright (C) 2019 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.
*/
package com.android.settings.development.bluetooth;
import android.bluetooth.BluetoothA2dp;
import android.bluetooth.BluetoothCodecConfig;
import android.bluetooth.BluetoothDevice;
import android.content.Context;
import android.util.Log;
import androidx.annotation.VisibleForTesting;
import androidx.preference.PreferenceScreen;
import com.android.settings.development.BluetoothA2dpConfigStore;
import com.android.settingslib.core.lifecycle.Lifecycle;
import java.util.ArrayList;
import java.util.List;
/**
* Dialog preference controller to set the Bluetooth A2DP config of codec
*/
public class BluetoothCodecDialogPreferenceController extends
AbstractBluetoothDialogPreferenceController {
private static final String KEY = "bluetooth_audio_codec_settings";
private static final String TAG = "BtCodecCtr";
private final Callback mCallback;
public BluetoothCodecDialogPreferenceController(Context context, Lifecycle lifecycle,
BluetoothA2dpConfigStore store,
Callback callback) {
super(context, lifecycle, store);
mCallback = callback;
}
@Override
public String getPreferenceKey() {
return KEY;
}
@Override
public void displayPreference(PreferenceScreen screen) {
super.displayPreference(screen);
((BaseBluetoothDialogPreference) mPreference).setCallback(this);
}
@Override
public void onHDAudioEnabled(boolean enabled) {
if (!enabled) {
// If option codec is disabled, SBC is the only only one available codec.
onIndexUpdated(convertCfgToBtnIndex(BluetoothCodecConfig.SOURCE_CODEC_TYPE_SBC));
}
}
@Override
public List<Integer> getSelectableIndex() {
List<Integer> index = new ArrayList<>();
final BluetoothA2dp bluetoothA2dp = mBluetoothA2dp;
index.add(getDefaultIndex());
if (bluetoothA2dp == null) {
return index;
}
final BluetoothDevice activeDevice = bluetoothA2dp.getActiveDevice();
if (activeDevice == null) {
Log.d(TAG, "Unable to get selectable index. No Active Bluetooth device");
return index;
}
// Check HD audio is enabled, display the available list.
if (bluetoothA2dp.isOptionalCodecsEnabled(activeDevice)
== BluetoothA2dp.OPTIONAL_CODECS_PREF_ENABLED) {
BluetoothCodecConfig[] configs = getSelectableConfigs(bluetoothA2dp.getActiveDevice());
if (configs != null) {
return getIndexFromConfig(configs);
}
}
// If HD audio is disabled, SBC is the only one available codec.
index.add(convertCfgToBtnIndex(BluetoothCodecConfig.SOURCE_CODEC_TYPE_SBC));
return index;
}
@Override
protected void writeConfigurationValues(final int index) {
int codecTypeValue = BluetoothCodecConfig.SOURCE_CODEC_TYPE_SBC; // default
int codecPriorityValue = BluetoothCodecConfig.CODEC_PRIORITY_DEFAULT;
switch (index) {
case 0:
codecTypeValue = getHighestCodec(getSelectableConfigs(
mBluetoothA2dp.getActiveDevice()));
codecPriorityValue = BluetoothCodecConfig.CODEC_PRIORITY_HIGHEST;
break;
case 1:
codecTypeValue = BluetoothCodecConfig.SOURCE_CODEC_TYPE_SBC;
codecPriorityValue = BluetoothCodecConfig.CODEC_PRIORITY_HIGHEST;
break;
case 2:
codecTypeValue = BluetoothCodecConfig.SOURCE_CODEC_TYPE_AAC;
codecPriorityValue = BluetoothCodecConfig.CODEC_PRIORITY_HIGHEST;
break;
case 3:
codecTypeValue = BluetoothCodecConfig.SOURCE_CODEC_TYPE_APTX;
codecPriorityValue = BluetoothCodecConfig.CODEC_PRIORITY_HIGHEST;
break;
case 4:
codecTypeValue = BluetoothCodecConfig.SOURCE_CODEC_TYPE_APTX_HD;
codecPriorityValue = BluetoothCodecConfig.CODEC_PRIORITY_HIGHEST;
break;
case 5:
codecTypeValue = BluetoothCodecConfig.SOURCE_CODEC_TYPE_LDAC;
codecPriorityValue = BluetoothCodecConfig.CODEC_PRIORITY_HIGHEST;
break;
default:
break;
}
mBluetoothA2dpConfigStore.setCodecType(codecTypeValue);
mBluetoothA2dpConfigStore.setCodecPriority(codecPriorityValue);
// Once user changes codec, to reset configs with highest quality.
final BluetoothCodecConfig config = getSelectableByCodecType(codecTypeValue);
if (config == null) {
Log.d(TAG, "Selectable config is null. Unable to reset");
}
mBluetoothA2dpConfigStore.setSampleRate(getHighestSampleRate(config));
mBluetoothA2dpConfigStore.setBitsPerSample(getHighestBitsPerSample(config));
mBluetoothA2dpConfigStore.setChannelMode(getHighestChannelMode(config));
}
@Override
protected int getCurrentIndexByConfig(BluetoothCodecConfig config) {
if (config == null) {
Log.e(TAG, "Unable to get current config index. Config is null.");
}
return convertCfgToBtnIndex(config.getCodecType());
}
@Override
public void onIndexUpdated(int index) {
super.onIndexUpdated(index);
mCallback.onBluetoothCodecChanged();
}
private List<Integer> getIndexFromConfig(BluetoothCodecConfig[] configs) {
List<Integer> indexArray = new ArrayList<>();
for (int i = 0; i < configs.length; i++) {
indexArray.add(convertCfgToBtnIndex(configs[i].getCodecType()));
}
return indexArray;
}
@VisibleForTesting
int convertCfgToBtnIndex(int config) {
int index = getDefaultIndex();
switch (config) {
case BluetoothCodecConfig.SOURCE_CODEC_TYPE_SBC:
index = 1;
break;
case BluetoothCodecConfig.SOURCE_CODEC_TYPE_AAC:
index = 2;
break;
case BluetoothCodecConfig.SOURCE_CODEC_TYPE_APTX:
index = 3;
break;
case BluetoothCodecConfig.SOURCE_CODEC_TYPE_APTX_HD:
index = 4;
break;
case BluetoothCodecConfig.SOURCE_CODEC_TYPE_LDAC:
index = 5;
break;
default:
Log.e(TAG, "Unsupported config:" + config);
break;
}
return index;
}
}
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