本文整理了Java中com.google.android.exoplayer2.Timeline.getUidOfPeriod()方法的一些代码示例，展示了Timeline.getUidOfPeriod()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Timeline.getUidOfPeriod()方法的具体详情如下：
包路径：com.google.android.exoplayer2.Timeline
类名称：Timeline
方法名：getUidOfPeriod

Timeline.getUidOfPeriod介绍

[英]Returns the unique id of the period identified by its index in the timeline.
[中]返回由其在时间轴中的索引标识的时段的唯一id。

代码示例

代码示例来源：origin: google/ExoPlayer

@Override
 public Object getUidOfPeriod(int periodIndex) {
  return timeline.getUidOfPeriod(periodIndex);
 }
}

代码示例来源：origin: google/ExoPlayer

@Override
 public Object getUidOfPeriod(int periodIndex) {
  Object uid = timeline.getUidOfPeriod(periodIndex);
  return Util.areEqual(uid, replacedId) ? DUMMY_ID : uid;
 }
}

代码示例来源：origin: google/ExoPlayer

/**
 * Given a period index into an old timeline, finds the first subsequent period that also exists
 * in a new timeline. The uid of this period in the new timeline is returned.
 *
 * @param oldPeriodUid The index of the period in the old timeline.
 * @param oldTimeline The old timeline.
 * @param newTimeline The new timeline.
 * @return The uid in the new timeline of the first subsequent period, or null if no such period
 *     was found.
 */
private @Nullable Object resolveSubsequentPeriod(
  Object oldPeriodUid, Timeline oldTimeline, Timeline newTimeline) {
 int oldPeriodIndex = oldTimeline.getIndexOfPeriod(oldPeriodUid);
 int newPeriodIndex = C.INDEX_UNSET;
 int maxIterations = oldTimeline.getPeriodCount();
 for (int i = 0; i < maxIterations && newPeriodIndex == C.INDEX_UNSET; i++) {
  oldPeriodIndex = oldTimeline.getNextPeriodIndex(oldPeriodIndex, period, window, repeatMode,
    shuffleModeEnabled);
  if (oldPeriodIndex == C.INDEX_UNSET) {
   // We've reached the end of the old timeline.
   break;
  }
  newPeriodIndex = newTimeline.getIndexOfPeriod(oldTimeline.getUidOfPeriod(oldPeriodIndex));
 }
 return newPeriodIndex == C.INDEX_UNSET ? null : newTimeline.getUidOfPeriod(newPeriodIndex);
}

代码示例来源：origin: google/ExoPlayer

private void onAdSourceInfoRefreshed(MediaSource mediaSource, int adGroupIndex,
  int adIndexInAdGroup, Timeline timeline) {
 Assertions.checkArgument(timeline.getPeriodCount() == 1);
 adGroupTimelines[adGroupIndex][adIndexInAdGroup] = timeline;
 List<DeferredMediaPeriod> mediaPeriods = deferredMediaPeriodByAdMediaSource.remove(mediaSource);
 if (mediaPeriods != null) {
  Object periodUid = timeline.getUidOfPeriod(/* periodIndex= */ 0);
  for (int i = 0; i < mediaPeriods.size(); i++) {
   DeferredMediaPeriod mediaPeriod = mediaPeriods.get(i);
   MediaPeriodId adSourceMediaPeriodId =
     new MediaPeriodId(periodUid, mediaPeriod.id.windowSequenceNumber);
   mediaPeriod.createPeriod(adSourceMediaPeriodId);
  }
 }
 maybeUpdateSourceInfo();
}

代码示例来源：origin: google/ExoPlayer

@Override
public MediaPeriod createPeriod(MediaPeriodId id, Allocator allocator, long startPositionUs) {
 MediaPeriod[] periods = new MediaPeriod[mediaSources.length];
 int periodIndex = timelines[0].getIndexOfPeriod(id.periodUid);
 for (int i = 0; i < periods.length; i++) {
  MediaPeriodId childMediaPeriodId =
    id.copyWithPeriodUid(timelines[i].getUidOfPeriod(periodIndex));
  periods[i] = mediaSources[i].createPeriod(childMediaPeriodId, allocator, startPositionUs);
 }
 return new MergingMediaPeriod(compositeSequenceableLoaderFactory, periods);
}

代码示例来源：origin: google/ExoPlayer

/**
 * Returns dummy media period id for the first-to-be-played period of the current timeline.
 *
 * @param shuffleModeEnabled Whether shuffle mode is enabled.
 * @param window A writable {@link Timeline.Window}.
 * @return A dummy media period id for the first-to-be-played period of the current timeline.
 */
public MediaPeriodId getDummyFirstMediaPeriodId(
  boolean shuffleModeEnabled, Timeline.Window window) {
 if (timeline.isEmpty()) {
  return DUMMY_MEDIA_PERIOD_ID;
 }
 int firstPeriodIndex =
   timeline.getWindow(timeline.getFirstWindowIndex(shuffleModeEnabled), window)
     .firstPeriodIndex;
 return new MediaPeriodId(timeline.getUidOfPeriod(firstPeriodIndex));
}

代码示例来源：origin: google/ExoPlayer

@Override
public final Object getUidOfPeriod(int periodIndex) {
 int childIndex = getChildIndexByPeriodIndex(periodIndex);
 int firstPeriodIndexInChild = getFirstPeriodIndexByChildIndex(childIndex);
 Object periodUidInChild =
   getTimelineByChildIndex(childIndex).getUidOfPeriod(periodIndex - firstPeriodIndexInChild);
 return getConcatenatedUid(getChildUidByChildIndex(childIndex), periodUidInChild);
}

代码示例来源：origin: google/ExoPlayer

@Test
public void testReleaseAndReprepareSource() throws IOException {
 FakeMediaSource[] fakeMediaSources = createMediaSources(/* count= */ 2);
 mediaSource.addMediaSource(fakeMediaSources[0]); // Child source with 1 period.
 mediaSource.addMediaSource(fakeMediaSources[1]); // Child source with 2 periods.
 Timeline timeline = testRunner.prepareSource();
 Object periodId0 = timeline.getUidOfPeriod(/* periodIndex= */ 0);
 Object periodId1 = timeline.getUidOfPeriod(/* periodIndex= */ 1);
 Object periodId2 = timeline.getUidOfPeriod(/* periodIndex= */ 2);
 testRunner.releaseSource();
 mediaSource.moveMediaSource(/* currentIndex= */ 1, /* newIndex= */ 0);
 timeline = testRunner.prepareSource();
 Object newPeriodId0 = timeline.getUidOfPeriod(/* periodIndex= */ 0);
 Object newPeriodId1 = timeline.getUidOfPeriod(/* periodIndex= */ 1);
 Object newPeriodId2 = timeline.getUidOfPeriod(/* periodIndex= */ 2);
 assertThat(newPeriodId0).isEqualTo(periodId1);
 assertThat(newPeriodId1).isEqualTo(periodId2);
 assertThat(newPeriodId2).isEqualTo(periodId0);
}

代码示例来源：origin: google/ExoPlayer

assertThat(timeline.getUidOfPeriod(i)).isEqualTo(period.uid);
for (int repeatMode : REPEAT_MODES) {
 if (i < accumulatedPeriodCounts[expectedWindowIndex + 1] - 1) {

代码示例来源：origin: google/ExoPlayer

/* windowIndex= */ 0,
    new MediaPeriodId(
      timeline.getUidOfPeriod(/* periodIndex= */ 0), /* windowSequenceNumber= */ 0));
period0Seq0 = period0;
period0Seq1 =
    /* windowIndex= */ 0,
    new MediaPeriodId(
      timeline.getUidOfPeriod(/* periodIndex= */ 0), /* windowSequenceNumber= */ 1));
window1Period0Seq1 =
  new EventWindowAndPeriodId(
    /* windowIndex= */ 1,
    new MediaPeriodId(
      timeline.getUidOfPeriod(/* periodIndex= */ 0), /* windowSequenceNumber= */ 1));
if (timeline.getPeriodCount() > 1) {
 period1 =
     /* windowIndex= */ 1,
     new MediaPeriodId(
       timeline.getUidOfPeriod(/* periodIndex= */ 1), /* windowSequenceNumber= */ 1));
 period1Seq1 = period1;
 period1Seq0 =
     /* windowIndex= */ 1,
     new MediaPeriodId(
       timeline.getUidOfPeriod(/* periodIndex= */ 1), /* windowSequenceNumber= */ 0));
 period1Seq2 =
   new EventWindowAndPeriodId(
     /* windowIndex= */ 1,

代码示例来源：origin: google/ExoPlayer

private void assertCompletedAllMediaPeriodLoads(Timeline timeline) {
 Timeline.Period period = new Timeline.Period();
 Timeline.Window window = new Timeline.Window();
 ArrayList<MediaPeriodId> expectedMediaPeriodIds = new ArrayList<>();
 for (int windowIndex = 0; windowIndex < timeline.getWindowCount(); windowIndex++) {
  timeline.getWindow(windowIndex, window);
  for (int periodIndex = window.firstPeriodIndex;
    periodIndex <= window.lastPeriodIndex;
    periodIndex++) {
   timeline.getPeriod(periodIndex, period);
   Object periodUid = timeline.getUidOfPeriod(periodIndex);
   expectedMediaPeriodIds.add(new MediaPeriodId(periodUid, windowIndex));
   for (int adGroupIndex = 0; adGroupIndex < period.getAdGroupCount(); adGroupIndex++) {
    for (int adIndex = 0; adIndex < period.getAdCountInAdGroup(adGroupIndex); adIndex++) {
     expectedMediaPeriodIds.add(
       new MediaPeriodId(periodUid, adGroupIndex, adIndex, windowIndex));
    }
   }
  }
 }
 testRunner.assertCompletedMediaPeriodLoads(
   expectedMediaPeriodIds.toArray(new MediaPeriodId[0]));
}

代码示例来源：origin: google/ExoPlayer

@Test
public void testChildTimelineChangeWithActiveMediaPeriod() throws IOException {
 FakeMediaSource[] nestedChildSources = createMediaSources(/* count= */ 2);
 ConcatenatingMediaSource childSource = new ConcatenatingMediaSource(nestedChildSources);
 mediaSource.addMediaSource(childSource);
 Timeline timeline = testRunner.prepareSource();
 MediaPeriod mediaPeriod =
   testRunner.createPeriod(
     new MediaPeriodId(
       timeline.getUidOfPeriod(/* periodIndex= */ 1), /* windowSequenceNumber= */ 0));
 childSource.moveMediaSource(/* currentIndex= */ 0, /* newIndex= */ 1);
 timeline = testRunner.assertTimelineChangeBlocking();
 testRunner.preparePeriod(mediaPeriod, /* positionUs= */ 0);
 testRunner.assertCompletedMediaPeriodLoads(
   new MediaPeriodId(
     timeline.getUidOfPeriod(/* periodIndex= */ 0), /* windowSequenceNumber= */ 0));
}

代码示例来源：origin: google/ExoPlayer

@Test
public void testChildSourceIsPreparedWithLazyPreparationAfterPeriodCreation() throws IOException {
 FakeMediaSource[] childSources = createMediaSources(/* count= */ 2);
 mediaSource =
   new ConcatenatingMediaSource(
     /* isAtomic= */ false,
     /* useLazyPreparation= */ true,
     new DefaultShuffleOrder(0),
     childSources);
 testRunner = new MediaSourceTestRunner(mediaSource, /* allocator= */ null);
 Timeline timeline = testRunner.prepareSource();
 testRunner.createPeriod(
   new MediaPeriodId(
     timeline.getUidOfPeriod(/* periodIndex= */ 0), /* windowSequenceNumber= */ 0));
 assertThat(childSources[0].isPrepared()).isTrue();
 assertThat(childSources[1].isPrepared()).isFalse();
}

代码示例来源：origin: google/ExoPlayer

.containsAllOf(
    new MediaPeriodId(
      timeline.getUidOfPeriod(/* periodIndex= */ 0), /* windowSequenceNumber= */ 0),
    new MediaPeriodId(
      timeline.getUidOfPeriod(/* periodIndex= */ 1), /* windowSequenceNumber= */ 0));
assertThat(mediaSource.getCreatedMediaPeriods())
  .doesNotContain(
    new MediaPeriodId(
      timeline.getUidOfPeriod(/* periodIndex= */ 1), /* windowSequenceNumber= */ 1));

代码示例来源：origin: google/ExoPlayer

@Test
public void testRemoveChildSourceWithActiveMediaPeriod() throws IOException {
 FakeMediaSource childSource = createFakeMediaSource();
 mediaSource.addMediaSource(childSource);
 Timeline timeline = testRunner.prepareSource();
 MediaPeriod mediaPeriod =
   testRunner.createPeriod(
     new MediaPeriodId(
       timeline.getUidOfPeriod(/* periodIndex= */ 0), /* windowSequenceNumber= */ 0));
 mediaSource.removeMediaSource(/* index= */ 0);
 testRunner.assertTimelineChangeBlocking();
 testRunner.releasePeriod(mediaPeriod);
 childSource.assertReleased();
 testRunner.releaseSource();
}

代码示例来源：origin: google/ExoPlayer

@Test
public void testDuplicateMediaSources() throws IOException, InterruptedException {
 Timeline childTimeline = new FakeTimeline(/* windowCount= */ 2);
 FakeMediaSource childSource = new FakeMediaSource(childTimeline, /* manifest= */ null);
 mediaSource.addMediaSource(childSource);
 mediaSource.addMediaSource(childSource);
 testRunner.prepareSource();
 mediaSource.addMediaSources(Arrays.asList(childSource, childSource));
 Timeline timeline = testRunner.assertTimelineChangeBlocking();
 TimelineAsserts.assertPeriodCounts(timeline, 1, 1, 1, 1, 1, 1, 1, 1);
 testRunner.assertPrepareAndReleaseAllPeriods();
 Object childPeriodUid0 = childTimeline.getUidOfPeriod(/* periodIndex= */ 0);
 Object childPeriodUid1 = childTimeline.getUidOfPeriod(/* periodIndex= */ 1);
 assertThat(childSource.getCreatedMediaPeriods())
   .containsAllOf(
     new MediaPeriodId(childPeriodUid0, /* windowSequenceNumber= */ 0),
     new MediaPeriodId(childPeriodUid0, /* windowSequenceNumber= */ 2),
     new MediaPeriodId(childPeriodUid0, /* windowSequenceNumber= */ 4),
     new MediaPeriodId(childPeriodUid0, /* windowSequenceNumber= */ 6),
     new MediaPeriodId(childPeriodUid1, /* windowSequenceNumber= */ 1),
     new MediaPeriodId(childPeriodUid1, /* windowSequenceNumber= */ 3),
     new MediaPeriodId(childPeriodUid1, /* windowSequenceNumber= */ 5),
     new MediaPeriodId(childPeriodUid1, /* windowSequenceNumber= */ 7));
 // Assert that only one manifest load is reported because the source is reused.
 testRunner.assertCompletedManifestLoads(/* windowIndices= */ 0);
 assertCompletedAllMediaPeriodLoads(timeline);
 testRunner.releaseSource();
 childSource.assertReleased();
}

代码示例来源：origin: google/ExoPlayer

@Test
public void testChildSourceWithLazyPreparationOnlyPreparesSourceOnce() throws IOException {
 FakeMediaSource[] childSources = createMediaSources(/* count= */ 2);
 mediaSource =
   new ConcatenatingMediaSource(
     /* isAtomic= */ false,
     /* useLazyPreparation= */ true,
     new DefaultShuffleOrder(0),
     childSources);
 testRunner = new MediaSourceTestRunner(mediaSource, /* allocator= */ null);
 Timeline timeline = testRunner.prepareSource();
 // The lazy preparation must only be triggered once, even if we create multiple periods from
 // the media source. FakeMediaSource.prepareSource asserts that it's not called twice, so
 // creating two periods shouldn't throw.
 MediaPeriodId mediaPeriodId =
   new MediaPeriodId(
     timeline.getUidOfPeriod(/* periodIndex= */ 0), /* windowSequenceNumber= */ 0);
 testRunner.createPeriod(mediaPeriodId);
 testRunner.createPeriod(mediaPeriodId);
}

代码示例来源：origin: google/ExoPlayer

private static Timeline[] getClippedTimelines(
   FakeMediaSource fakeMediaSource,
   ClippingMediaSource clippingMediaSource,
   Timeline... additionalTimelines)
   throws IOException {
  MediaSourceTestRunner testRunner =
    new MediaSourceTestRunner(clippingMediaSource, /* allocator= */ null);
  Timeline[] clippedTimelines = new Timeline[additionalTimelines.length + 1];
  try {
   clippedTimelines[0] = testRunner.prepareSource();
   MediaPeriod mediaPeriod =
     testRunner.createPeriod(
       new MediaPeriodId(
         clippedTimelines[0].getUidOfPeriod(/* periodIndex= */ 0),
         /* windowSequenceNumber= */ 0));
   for (int i = 0; i < additionalTimelines.length; i++) {
    fakeMediaSource.setNewSourceInfo(additionalTimelines[i], /* newManifest= */ null);
    clippedTimelines[i + 1] = testRunner.assertTimelineChangeBlocking();
   }
   testRunner.releasePeriod(mediaPeriod);
   testRunner.releaseSource();
   fakeMediaSource.assertReleased();
   return clippedTimelines;
  } finally {
   testRunner.release();
  }
 }
}

代码示例来源：origin: google/ExoPlayer

.containsExactly(
  new MediaPeriodId(
    timeline1.getUidOfPeriod(/* periodIndex= */ 0), /* windowSequenceNumber= */ 0),
  new MediaPeriodId(
    timeline1.getUidOfPeriod(/* periodIndex= */ 1), /* windowSequenceNumber= */ 1),
  new MediaPeriodId(
    timeline2.getUidOfPeriod(/* periodIndex= */ 1), /* windowSequenceNumber= */ 2))
.inOrder();

代码示例来源：origin: google/ExoPlayer

@Test
public void testDuplicateNestedMediaSources() throws IOException, InterruptedException {
 Timeline childTimeline = new FakeTimeline(/* windowCount= */ 1);
 FakeMediaSource childSource = new FakeMediaSource(childTimeline, /* manifest= */ null);
 ConcatenatingMediaSource nestedConcatenation = new ConcatenatingMediaSource();
 testRunner.prepareSource();
 mediaSource.addMediaSources(
   Arrays.asList(childSource, nestedConcatenation, nestedConcatenation));
 testRunner.assertTimelineChangeBlocking();
 nestedConcatenation.addMediaSource(childSource);
 testRunner.assertTimelineChangeBlocking();
 nestedConcatenation.addMediaSource(childSource);
 Timeline timeline = testRunner.assertTimelineChangeBlocking();
 TimelineAsserts.assertPeriodCounts(timeline, 1, 1, 1, 1, 1);
 testRunner.assertPrepareAndReleaseAllPeriods();
 Object childPeriodUid = childTimeline.getUidOfPeriod(/* periodIndex= */ 0);
 assertThat(childSource.getCreatedMediaPeriods())
   .containsAllOf(
     new MediaPeriodId(childPeriodUid, /* windowSequenceNumber= */ 0),
     new MediaPeriodId(childPeriodUid, /* windowSequenceNumber= */ 1),
     new MediaPeriodId(childPeriodUid, /* windowSequenceNumber= */ 2),
     new MediaPeriodId(childPeriodUid, /* windowSequenceNumber= */ 3),
     new MediaPeriodId(childPeriodUid, /* windowSequenceNumber= */ 4));
 // Assert that only one manifest load is needed because the source is reused.
 testRunner.assertCompletedManifestLoads(/* windowIndices= */ 0);
 assertCompletedAllMediaPeriodLoads(timeline);
 testRunner.releaseSource();
 childSource.assertReleased();
}