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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.tv.testing.testinput;
import android.media.tv.TvTrackInfo;
import com.android.tv.testing.Constants;
import java.util.Collections;
import java.util.List;
/**
* Versioned state information for a channel.
*/
public class ChannelState {
/**
* The video track a channel has by default.
*/
public static final TvTrackInfo DEFAULT_VIDEO_TRACK = Constants.FHD1080P50_VIDEO_TRACK;
/**
* The video track a channel has by default.
*/
public static final TvTrackInfo DEFAULT_AUDIO_TRACK = Constants.EN_STEREO_AUDIO_TRACK;
/**
* The channel is "tuned" and video available.
*
* @see #getTuneStatus()
*/
public static final int TUNE_STATUS_VIDEO_AVAILABLE = -2;
private static final int CHANNEL_VERSION_DEFAULT = 1;
/**
* Default ChannelState with version @{value #CHANNEL_VERSION_DEFAULT} and default {@link
* ChannelStateData}.
*/
public static final ChannelState DEFAULT = new ChannelState(CHANNEL_VERSION_DEFAULT,
new ChannelStateData());
private final int mVersion;
private final ChannelStateData mData;
private ChannelState(int version, ChannelStateData channelStateData) {
mVersion = version;
mData = channelStateData;
}
/**
* Returns the id of the selected audio track, or null if none is selected.
*/
public String getSelectedAudioTrackId() {
return mData.mSelectedAudioTrackId;
}
/**
* Returns the id of the selected audio track, or null if none is selected.
*/
public String getSelectedVideoTrackId() {
return mData.mSelectedVideoTrackId;
}
/**
* The current version. Larger version numbers are newer.
*
* <p>The version is increased by {@link #next(ChannelStateData)}.
*/
public int getVersion() {
return mVersion;
}
/**
* Tune status is either {@link #TUNE_STATUS_VIDEO_AVAILABLE} or a {@link
* android.media.tv.TvInputService.Session#notifyVideoUnavailable(int) video unavailable
* reason}
*/
public int getTuneStatus() {
return mData.mTuneStatus;
}
/**
* An unmodifiable list of TvTrackInfo for a channel, suitable for {@link
* android.media.tv.TvInputService.Session#notifyTracksChanged(List)}
*/
public List<TvTrackInfo> getTrackInfoList() {
return Collections.unmodifiableList(mData.mTvTrackInfos);
}
@Override
public String toString() {
return "v" + mVersion + ":" + mData;
}
/**
* Creates a new ChannelState, with an incremented version and {@code data} provided.
*
* @param data the data for the new ChannelState
*/
public ChannelState next(ChannelStateData data) {
return new ChannelState(mVersion + 1, data);
}
}
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