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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.tv.tuner;
     18 
     19 import static com.android.tv.common.feature.FeatureUtils.OFF;
     20 
     21 import android.content.Context;
     22 import android.text.TextUtils;
     23 import android.util.Log;
     24 import com.android.tv.common.BaseApplication;
     25 import com.android.tv.common.config.api.RemoteConfig;
     26 import com.android.tv.common.feature.CommonFeatures;
     27 import com.android.tv.common.feature.Feature;
     28 import com.android.tv.common.feature.Model;
     29 import com.android.tv.common.feature.PropertyFeature;
     30 import com.android.tv.common.util.CommonUtils;
     31 import com.android.tv.common.util.LocationUtils;
     32 import java.util.Locale;
     33 
     34 /**
     35  * List of {@link Feature} for Tuner.
     36  *
     37  * <p>Remove the {@code Feature} once it is launched.
     38  */
     39 public class TunerFeatures extends CommonFeatures {
     40     private static final String TAG = "TunerFeatures";
     41     private static final boolean DEBUG = false;
     42 
     43     /** Use network tuner if it is available and there is no other tuner types. */
     44     public static final Feature NETWORK_TUNER =
     45             new Feature() {
     46                 @Override
     47                 public boolean isEnabled(Context context) {
     48                     if (!TUNER.isEnabled(context)) {
     49                         return false;
     50                     }
     51                     if (CommonUtils.isDeveloper()) {
     52                         // Network tuner will be enabled for developers.
     53                         return true;
     54                     }
     55                     return Locale.US
     56                             .getCountry()
     57                             .equalsIgnoreCase(LocationUtils.getCurrentCountry(context));
     58                 }
     59             };
     60 
     61     /**
     62      * USE_SW_CODEC_FOR_SD
     63      *
     64      * <p>Prefer software based codec for SD channels.
     65      */
     66     public static final Feature USE_SW_CODEC_FOR_SD =
     67             PropertyFeature.create(
     68                     "use_sw_codec_for_sd",
     69                     false
     70                     );
     71 
     72     /** Use AC3 software decode. */
     73     public static final Feature AC3_SOFTWARE_DECODE =
     74             new Feature() {
     75                 private final String[] SUPPORTED_REGIONS = {};
     76 
     77                 private Boolean mEnabled;
     78 
     79                 @Override
     80                 public boolean isEnabled(Context context) {
     81                     if (mEnabled == null) {
     82                         if (mEnabled == null) {
     83                             // We will not cache the result of fallback solution.
     84                             String country = LocationUtils.getCurrentCountry(context);
     85                             for (int i = 0; i < SUPPORTED_REGIONS.length; ++i) {
     86                                 if (SUPPORTED_REGIONS[i].equalsIgnoreCase(country)) {
     87                                     return true;
     88                                 }
     89                             }
     90                             if (DEBUG) Log.d(TAG, "AC3 flag false after country check");
     91                             return false;
     92                         }
     93                     }
     94                     if (DEBUG) Log.d(TAG, "AC3 flag " + mEnabled);
     95                     return mEnabled;
     96                 }
     97             };
     98 
     99     /** Enable Dvb parsers and listeners. */
    100     public static final Feature ENABLE_FILE_DVB = OFF;
    101 
    102     private TunerFeatures() {}
    103 }
    104