Home | History | Annotate | Download | only in dvr 
      1 /*
      2  * Copyright (C) 2015 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.dvr;
     18 
     19 import android.annotation.TargetApi;
     20 import android.content.Context;
     21 import android.media.tv.TvInputInfo;
     22 import android.media.tv.TvInputManager;
     23 import android.media.tv.TvRecordingClient;
     24 import android.os.Build;
     25 import android.os.Handler;
     26 import android.support.annotation.Nullable;
     27 import android.support.annotation.VisibleForTesting;
     28 import android.support.v4.util.ArrayMap;
     29 import android.util.Log;
     30 
     31 import com.android.tv.common.SoftPreconditions;
     32 import com.android.tv.common.feature.CommonFeatures;
     33 import com.android.tv.data.Channel;
     34 
     35 /**
     36  * Manages Dvr Sessions.
     37  * Responsible for:
     38  * <ul>
     39  *     <li>Manage DvrSession</li>
     40  *     <li>Manage capabilities (conflict)</li>
     41  * </ul>
     42  */
     43 @TargetApi(Build.VERSION_CODES.N)
     44 public class DvrSessionManager extends TvInputManager.TvInputCallback {
     45     //consider moving all of this to TvInputManagerHelper
     46     private final static String TAG = "DvrSessionManager";
     47     private static final boolean DEBUG = false;
     48 
     49     private final Context mContext;
     50     private final TvInputManager mTvInputManager;
     51     private final ArrayMap<String, TvInputInfo> mRecordingTvInputs = new ArrayMap<>();
     52 
     53     public DvrSessionManager(Context context) {
     54         this(context, (TvInputManager) context.getSystemService(Context.TV_INPUT_SERVICE),
     55                 new Handler());
     56     }
     57 
     58     @VisibleForTesting
     59     DvrSessionManager(Context context, TvInputManager tvInputManager, Handler handler) {
     60         SoftPreconditions.checkFeatureEnabled(context, CommonFeatures.DVR, TAG);
     61         mTvInputManager = tvInputManager;
     62         mContext = context.getApplicationContext();
     63         for (TvInputInfo info : tvInputManager.getTvInputList()) {
     64             if (DEBUG) {
     65                 Log.d(TAG, info + " canRecord=" + info.canRecord() + " tunerCount=" + info
     66                         .getTunerCount());
     67             }
     68             if (info.canRecord()) {
     69                 mRecordingTvInputs.put(info.getId(), info);
     70             }
     71         }
     72         tvInputManager.registerCallback(this, handler);
     73 
     74     }
     75 
     76     public TvRecordingClient createTvRecordingClient(String tag,
     77             TvRecordingClient.RecordingCallback callback, Handler handler) {
     78         return new TvRecordingClient(mContext, tag, callback, handler);
     79     }
     80 
     81     public boolean canAcquireDvrSession(String inputId, Channel channel) {
     82         // TODO(DVR): implement checking tuner count etc.
     83         TvInputInfo info = mRecordingTvInputs.get(inputId);
     84         return info != null;
     85     }
     86 
     87     public void releaseTvRecordingClient(TvRecordingClient recordingClient) {
     88         recordingClient.release();
     89     }
     90 
     91     @Override
     92     public void onInputAdded(String inputId) {
     93         super.onInputAdded(inputId);
     94         TvInputInfo info = mTvInputManager.getTvInputInfo(inputId);
     95         if (DEBUG) {
     96             Log.d(TAG, "onInputAdded " + info.toString() + " canRecord=" + info.canRecord()
     97                     + " tunerCount=" + info.getTunerCount());
     98         }
     99         if (info.canRecord()) {
    100             mRecordingTvInputs.put(inputId, info);
    101         }
    102     }
    103 
    104     @Override
    105     public void onInputRemoved(String inputId) {
    106         super.onInputRemoved(inputId);
    107         if (DEBUG) Log.d(TAG, "onInputRemoved " + inputId);
    108         mRecordingTvInputs.remove(inputId);
    109     }
    110 
    111     @Override
    112     public void onInputUpdated(String inputId) {
    113         super.onInputUpdated(inputId);
    114         TvInputInfo info = mTvInputManager.getTvInputInfo(inputId);
    115         if (DEBUG) {
    116             Log.d(TAG, "onInputUpdated " + info.toString() + " canRecord=" + info.canRecord()
    117                     + " tunerCount=" + info.getTunerCount());
    118         }
    119         if (info.canRecord()) {
    120             mRecordingTvInputs.put(inputId, info);
    121         } else {
    122             mRecordingTvInputs.remove(inputId);
    123         }
    124     }
    125 
    126     @Nullable
    127     public TvInputInfo getTvInputInfo(String inputId) {
    128         return mRecordingTvInputs.get(inputId);
    129     }
    130 }
    131