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/*
* Copyright (C) 2017 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.source.ads;
import androidx.annotation.VisibleForTesting;
import org.mozilla.thirdparty.com.google.android.exoplayer2.C;
import org.mozilla.thirdparty.com.google.android.exoplayer2.Timeline;
import org.mozilla.thirdparty.com.google.android.exoplayer2.source.ForwardingTimeline;
import org.mozilla.thirdparty.com.google.android.exoplayer2.util.Assertions;
/** A {@link Timeline} for sources that have ads. */
@VisibleForTesting(otherwise = VisibleForTesting.PACKAGE_PRIVATE)
public final class SinglePeriodAdTimeline extends ForwardingTimeline {
private final AdPlaybackState adPlaybackState;
/**
* Creates a new timeline with a single period containing ads.
*
* @param contentTimeline The timeline of the content alongside which ads will be played. It must
* have one window and one period.
* @param adPlaybackState The state of the period's ads.
*/
public SinglePeriodAdTimeline(Timeline contentTimeline, AdPlaybackState adPlaybackState) {
super(contentTimeline);
Assertions.checkState(contentTimeline.getPeriodCount() == 1);
Assertions.checkState(contentTimeline.getWindowCount() == 1);
this.adPlaybackState = adPlaybackState;
}
@Override
public Period getPeriod(int periodIndex, Period period, boolean setIds) {
timeline.getPeriod(periodIndex, period, setIds);
period.set(
period.id,
period.uid,
period.windowIndex,
period.durationUs,
period.getPositionInWindowUs(),
adPlaybackState);
return period;
}
@Override
public Window getWindow(int windowIndex, Window window, long defaultPositionProjectionUs) {
window = super.getWindow(windowIndex, window, defaultPositionProjectionUs);
if (window.durationUs == C.TIME_UNSET) {
window.durationUs = adPlaybackState.contentDurationUs;
}
return window;
}
}
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