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      1 /*
      2  * Copyright (C) 2017 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.settings.development;
     18 
     19 import android.bluetooth.BluetoothCodecConfig;
     20 import android.content.Context;
     21 
     22 import com.android.settings.R;
     23 import com.android.settingslib.core.lifecycle.Lifecycle;
     24 
     25 public class BluetoothAudioSampleRatePreferenceController extends
     26         AbstractBluetoothA2dpPreferenceController {
     27 
     28     private static final int DEFAULT_INDEX = 0;
     29     private static final String BLUETOOTH_SELECT_A2DP_SAMPLE_RATE_KEY =
     30             "bluetooth_select_a2dp_sample_rate";
     31 
     32     public BluetoothAudioSampleRatePreferenceController(Context context, Lifecycle lifecycle,
     33             BluetoothA2dpConfigStore store) {
     34         super(context, lifecycle, store);
     35     }
     36 
     37     @Override
     38     public String getPreferenceKey() {
     39         return BLUETOOTH_SELECT_A2DP_SAMPLE_RATE_KEY;
     40     }
     41 
     42     @Override
     43     protected String[] getListValues() {
     44         return mContext.getResources().getStringArray(
     45                 R.array.bluetooth_a2dp_codec_sample_rate_values);
     46     }
     47 
     48     @Override
     49     protected String[] getListSummaries() {
     50         return mContext.getResources().getStringArray(
     51                 R.array.bluetooth_a2dp_codec_sample_rate_summaries);
     52     }
     53 
     54     @Override
     55     protected int getDefaultIndex() {
     56         return DEFAULT_INDEX;
     57     }
     58 
     59     @Override
     60     protected void writeConfigurationValues(Object newValue) {
     61         final int index = mPreference.findIndexOfValue(newValue.toString());
     62         int sampleRateValue = BluetoothCodecConfig.SAMPLE_RATE_NONE; // default
     63         switch (index) {
     64             case 0:
     65                 sampleRateValue = BluetoothCodecConfig.SAMPLE_RATE_NONE;
     66                 break;
     67             case 1:
     68                 sampleRateValue = BluetoothCodecConfig.SAMPLE_RATE_44100;
     69                 break;
     70             case 2:
     71                 sampleRateValue = BluetoothCodecConfig.SAMPLE_RATE_48000;
     72                 break;
     73             case 3:
     74                 sampleRateValue = BluetoothCodecConfig.SAMPLE_RATE_88200;
     75                 break;
     76             case 4:
     77                 sampleRateValue = BluetoothCodecConfig.SAMPLE_RATE_96000;
     78                 break;
     79             default:
     80                 break;
     81         }
     82         mBluetoothA2dpConfigStore.setSampleRate(sampleRateValue);
     83     }
     84 
     85     @Override
     86     protected int getCurrentA2dpSettingIndex(BluetoothCodecConfig config) {
     87         final int sampleRate = config.getSampleRate();
     88         int index = DEFAULT_INDEX;
     89         switch (sampleRate) {
     90             case BluetoothCodecConfig.SAMPLE_RATE_44100:
     91                 index = 1;
     92                 break;
     93             case BluetoothCodecConfig.SAMPLE_RATE_48000:
     94                 index = 2;
     95                 break;
     96             case BluetoothCodecConfig.SAMPLE_RATE_88200:
     97                 index = 3;
     98                 break;
     99             case BluetoothCodecConfig.SAMPLE_RATE_96000:
    100                 index = 4;
    101                 break;
    102             case BluetoothCodecConfig.SAMPLE_RATE_176400:
    103             case BluetoothCodecConfig.SAMPLE_RATE_192000:
    104             case BluetoothCodecConfig.SAMPLE_RATE_NONE:
    105             default:
    106                 break;
    107         }
    108         return index;
    109     }
    110 }
    111