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/*
* Copyright (C) 2016 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 org.mozilla.thirdparty.com.google.android.exoplayer2.trackselection;
import androidx.annotation.Nullable;
import org.mozilla.thirdparty.com.google.android.exoplayer2.C;
import org.mozilla.thirdparty.com.google.android.exoplayer2.source.TrackGroup;
import org.mozilla.thirdparty.com.google.android.exoplayer2.source.chunk.MediaChunk;
import org.mozilla.thirdparty.com.google.android.exoplayer2.source.chunk.MediaChunkIterator;
import org.mozilla.thirdparty.com.google.android.exoplayer2.upstream.BandwidthMeter;
import java.util.List;
import org.checkerframework.checker.nullness.compatqual.NullableType;
/**
* A {@link TrackSelection} consisting of a single track.
*/
public final class FixedTrackSelection extends BaseTrackSelection {
/**
* @deprecated Don't use as adaptive track selection factory as it will throw when multiple tracks
* are selected. If you would like to disable adaptive selection in {@link
* DefaultTrackSelector}, enable the {@link
* DefaultTrackSelector.Parameters#forceHighestSupportedBitrate} flag instead.
*/
@Deprecated
public static final class Factory implements TrackSelection.Factory {
private final int reason;
@Nullable private final Object data;
public Factory() {
this.reason = C.SELECTION_REASON_UNKNOWN;
this.data = null;
}
/**
* @param reason A reason for the track selection.
* @param data Optional data associated with the track selection.
*/
public Factory(int reason, @Nullable Object data) {
this.reason = reason;
this.data = data;
}
@Override
public @NullableType TrackSelection[] createTrackSelections(
@NullableType Definition[] definitions, BandwidthMeter bandwidthMeter) {
return TrackSelectionUtil.createTrackSelectionsForDefinitions(
definitions,
definition ->
new FixedTrackSelection(definition.group, definition.tracks[0], reason, data));
}
}
private final int reason;
@Nullable private final Object data;
/**
* @param group The {@link TrackGroup}. Must not be null.
* @param track The index of the selected track within the {@link TrackGroup}.
*/
public FixedTrackSelection(TrackGroup group, int track) {
this(group, track, C.SELECTION_REASON_UNKNOWN, null);
}
/**
* @param group The {@link TrackGroup}. Must not be null.
* @param track The index of the selected track within the {@link TrackGroup}.
* @param reason A reason for the track selection.
* @param data Optional data associated with the track selection.
*/
public FixedTrackSelection(TrackGroup group, int track, int reason, @Nullable Object data) {
super(group, track);
this.reason = reason;
this.data = data;
}
@Override
public void updateSelectedTrack(
long playbackPositionUs,
long bufferedDurationUs,
long availableDurationUs,
List<? extends MediaChunk> queue,
MediaChunkIterator[] mediaChunkIterators) {
// Do nothing.
}
@Override
public int getSelectedIndex() {
return 0;
}
@Override
public int getSelectionReason() {
return reason;
}
@Override
@Nullable
public Object getSelectionData() {
return data;
}
}
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