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