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Move MediaPeriodId in common minimalistically
This is needed to move ExoPlayerException in common. The follow up cl moves MediaPeriodId completely. #player-to-common PiperOrigin-RevId: 346133091
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library/common/src/main/java/com/google/android/exoplayer2/source/MediaPeriodId.java
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| /* | ||
| * Copyright 2020 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.google.android.exoplayer2.source; | ||
|
|
||
| import androidx.annotation.Nullable; | ||
| import com.google.android.exoplayer2.C; | ||
| import com.google.android.exoplayer2.Timeline; | ||
|
|
||
| /** | ||
| * Identifies a specific playback of a {@link Timeline.Period}. | ||
| * | ||
| * <p>A {@link Timeline.Period} can be played multiple times, for example if it is repeated. Each | ||
| * instances of this class identifies a specific playback of a {@link Timeline.Period}. | ||
| * | ||
| * <p>In ExoPlayer's implementation, {@link MediaPeriodId} identifies a {@code MediaPeriod}. | ||
| */ | ||
| // TODO(b/172315872) Should be final, but subclassed in MediaSource for backward-compatibility. | ||
| public class MediaPeriodId { | ||
|
|
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| /** The unique id of the timeline period. */ | ||
| public final Object periodUid; | ||
|
|
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| /** | ||
| * If the media period is in an ad group, the index of the ad group in the period. {@link | ||
| * C#INDEX_UNSET} otherwise. | ||
| */ | ||
| public final int adGroupIndex; | ||
|
|
||
| /** | ||
| * If the media period is in an ad group, the index of the ad in its ad group in the period. | ||
| * {@link C#INDEX_UNSET} otherwise. | ||
| */ | ||
| public final int adIndexInAdGroup; | ||
|
|
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| /** | ||
| * The sequence number of the window in the buffered sequence of windows this media period is part | ||
| * of. {@link C#INDEX_UNSET} if the media period id is not part of a buffered sequence of windows. | ||
| */ | ||
| public final long windowSequenceNumber; | ||
|
|
||
| /** | ||
| * The index of the next ad group to which the media period's content is clipped, or {@link | ||
| * C#INDEX_UNSET} if there is no following ad group or if this media period is an ad. | ||
| */ | ||
| public final int nextAdGroupIndex; | ||
|
|
||
| /** | ||
| * Creates a media period identifier for a period which is not part of a buffered sequence of | ||
| * windows. | ||
| * | ||
| * @param periodUid The unique id of the timeline period. | ||
| */ | ||
| public MediaPeriodId(Object periodUid) { | ||
| this(periodUid, /* windowSequenceNumber= */ C.INDEX_UNSET); | ||
| } | ||
|
|
||
| /** | ||
| * Creates a media period identifier for the specified period in the timeline. | ||
| * | ||
| * @param periodUid The unique id of the timeline period. | ||
| * @param windowSequenceNumber The sequence number of the window in the buffered sequence of | ||
| * windows this media period is part of. | ||
| */ | ||
| public MediaPeriodId(Object periodUid, long windowSequenceNumber) { | ||
| this( | ||
| periodUid, | ||
| /* adGroupIndex= */ C.INDEX_UNSET, | ||
| /* adIndexInAdGroup= */ C.INDEX_UNSET, | ||
| windowSequenceNumber, | ||
| /* nextAdGroupIndex= */ C.INDEX_UNSET); | ||
| } | ||
|
|
||
| /** | ||
| * Creates a media period identifier for the specified clipped period in the timeline. | ||
| * | ||
| * @param periodUid The unique id of the timeline period. | ||
| * @param windowSequenceNumber The sequence number of the window in the buffered sequence of | ||
| * windows this media period is part of. | ||
| * @param nextAdGroupIndex The index of the next ad group to which the media period's content is | ||
| * clipped. | ||
| */ | ||
| public MediaPeriodId(Object periodUid, long windowSequenceNumber, int nextAdGroupIndex) { | ||
| this( | ||
| periodUid, | ||
| /* adGroupIndex= */ C.INDEX_UNSET, | ||
| /* adIndexInAdGroup= */ C.INDEX_UNSET, | ||
| windowSequenceNumber, | ||
| nextAdGroupIndex); | ||
| } | ||
|
|
||
| /** | ||
| * Creates a media period identifier that identifies an ad within an ad group at the specified | ||
| * timeline period. | ||
| * | ||
| * @param periodUid The unique id of the timeline period that contains the ad group. | ||
| * @param adGroupIndex The index of the ad group. | ||
| * @param adIndexInAdGroup The index of the ad in the ad group. | ||
| * @param windowSequenceNumber The sequence number of the window in the buffered sequence of | ||
| * windows this media period is part of. | ||
| */ | ||
| public MediaPeriodId( | ||
| Object periodUid, int adGroupIndex, int adIndexInAdGroup, long windowSequenceNumber) { | ||
| this( | ||
| periodUid, | ||
| adGroupIndex, | ||
| adIndexInAdGroup, | ||
| windowSequenceNumber, | ||
| /* nextAdGroupIndex= */ C.INDEX_UNSET); | ||
| } | ||
|
|
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| /** Copy constructor for inheritance. */ | ||
| // TODO(b/172315872) Delete when client have migrated from MediaSource.MediaPeriodId | ||
| protected MediaPeriodId(MediaPeriodId mediaPeriodId) { | ||
| this.periodUid = mediaPeriodId.periodUid; | ||
| this.adGroupIndex = mediaPeriodId.adGroupIndex; | ||
| this.adIndexInAdGroup = mediaPeriodId.adIndexInAdGroup; | ||
| this.windowSequenceNumber = mediaPeriodId.windowSequenceNumber; | ||
| this.nextAdGroupIndex = mediaPeriodId.nextAdGroupIndex; | ||
| } | ||
|
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||
| private MediaPeriodId( | ||
| Object periodUid, | ||
| int adGroupIndex, | ||
| int adIndexInAdGroup, | ||
| long windowSequenceNumber, | ||
| int nextAdGroupIndex) { | ||
| this.periodUid = periodUid; | ||
| this.adGroupIndex = adGroupIndex; | ||
| this.adIndexInAdGroup = adIndexInAdGroup; | ||
| this.windowSequenceNumber = windowSequenceNumber; | ||
| this.nextAdGroupIndex = nextAdGroupIndex; | ||
| } | ||
|
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| /** Returns a copy of this period identifier but with {@code newPeriodUid} as its period uid. */ | ||
| public MediaPeriodId copyWithPeriodUid(Object newPeriodUid) { | ||
| return periodUid.equals(newPeriodUid) | ||
| ? this | ||
| : new MediaPeriodId( | ||
| newPeriodUid, adGroupIndex, adIndexInAdGroup, windowSequenceNumber, nextAdGroupIndex); | ||
| } | ||
|
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| /** Returns whether this period identifier identifies an ad in an ad group in a period. */ | ||
| public boolean isAd() { | ||
| return adGroupIndex != C.INDEX_UNSET; | ||
| } | ||
|
|
||
| @Override | ||
| public boolean equals(@Nullable Object obj) { | ||
| if (this == obj) { | ||
| return true; | ||
| } | ||
| if (!(obj instanceof MediaPeriodId)) { | ||
| return false; | ||
| } | ||
|
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| MediaPeriodId periodId = (MediaPeriodId) obj; | ||
| return periodUid.equals(periodId.periodUid) | ||
| && adGroupIndex == periodId.adGroupIndex | ||
| && adIndexInAdGroup == periodId.adIndexInAdGroup | ||
| && windowSequenceNumber == periodId.windowSequenceNumber | ||
| && nextAdGroupIndex == periodId.nextAdGroupIndex; | ||
| } | ||
|
|
||
| @Override | ||
| public int hashCode() { | ||
| int result = 17; | ||
| result = 31 * result + periodUid.hashCode(); | ||
| result = 31 * result + adGroupIndex; | ||
| result = 31 * result + adIndexInAdGroup; | ||
| result = 31 * result + (int) windowSequenceNumber; | ||
| result = 31 * result + nextAdGroupIndex; | ||
| return result; | ||
| } | ||
| } |
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