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 package com.android.tv.testing.testinput; 17 18 import android.media.tv.TvTrackInfo; 19 20 import com.android.tv.testing.Constants; 21 22 import java.util.Collections; 23 import java.util.List; 24 25 /** 26 * Versioned state information for a channel. 27 */ 28 public class ChannelState { 29 30 /** 31 * The video track a channel has by default. 32 */ 33 public static final TvTrackInfo DEFAULT_VIDEO_TRACK = Constants.FHD1080P50_VIDEO_TRACK; 34 /** 35 * The video track a channel has by default. 36 */ 37 public static final TvTrackInfo DEFAULT_AUDIO_TRACK = Constants.EN_STEREO_AUDIO_TRACK; 38 /** 39 * The channel is "tuned" and video available. 40 * 41 * @see #getTuneStatus() 42 */ 43 public static final int TUNE_STATUS_VIDEO_AVAILABLE = -2; 44 45 private static final int CHANNEL_VERSION_DEFAULT = 1; 46 /** 47 * Default ChannelState with version @{value #CHANNEL_VERSION_DEFAULT} and default {@link 48 * ChannelStateData}. 49 */ 50 public static final ChannelState DEFAULT = new ChannelState(CHANNEL_VERSION_DEFAULT, 51 new ChannelStateData()); 52 private final int mVersion; 53 private final ChannelStateData mData; 54 55 ChannelState(int version, ChannelStateData channelStateData)56 private ChannelState(int version, ChannelStateData channelStateData) { 57 mVersion = version; 58 mData = channelStateData; 59 } 60 61 /** 62 * Returns the id of the selected audio track, or null if none is selected. 63 */ getSelectedAudioTrackId()64 public String getSelectedAudioTrackId() { 65 return mData.mSelectedAudioTrackId; 66 } 67 68 /** 69 * Returns the id of the selected audio track, or null if none is selected. 70 */ getSelectedVideoTrackId()71 public String getSelectedVideoTrackId() { 72 return mData.mSelectedVideoTrackId; 73 } 74 75 /** 76 * The current version. Larger version numbers are newer. 77 * 78 * <p>The version is increased by {@link #next(ChannelStateData)}. 79 */ getVersion()80 public int getVersion() { 81 return mVersion; 82 } 83 84 /** 85 * Tune status is either {@link #TUNE_STATUS_VIDEO_AVAILABLE} or a {@link 86 * android.media.tv.TvInputService.Session#notifyVideoUnavailable(int) video unavailable 87 * reason} 88 */ getTuneStatus()89 public int getTuneStatus() { 90 return mData.mTuneStatus; 91 } 92 93 /** 94 * An unmodifiable list of TvTrackInfo for a channel, suitable for {@link 95 * android.media.tv.TvInputService.Session#notifyTracksChanged(List)} 96 */ getTrackInfoList()97 public List<TvTrackInfo> getTrackInfoList() { 98 return Collections.unmodifiableList(mData.mTvTrackInfos); 99 } 100 101 @Override toString()102 public String toString() { 103 return "v" + mVersion + ":" + mData; 104 } 105 106 /** 107 * Creates a new ChannelState, with an incremented version and {@code data} provided. 108 * 109 * @param data the data for the new ChannelState 110 */ next(ChannelStateData data)111 public ChannelState next(ChannelStateData data) { 112 return new ChannelState(mVersion + 1, data); 113 } 114 } 115