本文整理了Java中com.google.android.exoplayer2.Timeline.getPeriodByUid()方法的一些代码示例，展示了Timeline.getPeriodByUid()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.getPeriodByUid()方法的具体详情如下：
包路径：com.google.android.exoplayer2.Timeline
类名称：Timeline
方法名：getPeriodByUid

Timeline.getPeriodByUid介绍

[英]Populates a Period with data for the period with the specified unique identifier.
[中]使用具有指定唯一标识符的时段数据填充时段。

代码示例

代码示例来源：origin: google/ExoPlayer

@Override
public int getCurrentWindowIndex() {
 if (shouldMaskPosition()) {
  return maskingWindowIndex;
 } else {
  return playbackInfo.timeline.getPeriodByUid(playbackInfo.periodId.periodUid, period)
    .windowIndex;
 }
}

代码示例来源：origin: google/ExoPlayer

private long periodPositionUsToWindowPositionMs(MediaPeriodId periodId, long positionUs) {
 long positionMs = C.usToMs(positionUs);
 playbackInfo.timeline.getPeriodByUid(periodId.periodUid, period);
 positionMs += period.getPositionInWindowMs();
 return positionMs;
}

代码示例来源：origin: google/ExoPlayer

@Override
protected FakeMediaPeriod createFakeMediaPeriod(
  MediaPeriodId id,
  TrackGroupArray trackGroupArray,
  Allocator allocator,
  EventDispatcher eventDispatcher,
  @Nullable TransferListener transferListener) {
 Period period = timeline.getPeriodByUid(id.periodUid, new Period());
 return new FakeAdaptiveMediaPeriod(
   trackGroupArray,
   eventDispatcher,
   allocator,
   chunkSourceFactory,
   period.durationUs,
   transferListener);
}

代码示例来源：origin: google/ExoPlayer

@Override
public long getDuration() {
 if (isPlayingAd()) {
  MediaPeriodId periodId = playbackInfo.periodId;
  playbackInfo.timeline.getPeriodByUid(periodId.periodUid, period);
  long adDurationUs = period.getAdDurationUs(periodId.adGroupIndex, periodId.adIndexInAdGroup);
  return C.usToMs(adDurationUs);
 }
 return getContentDuration();
}

代码示例来源：origin: google/ExoPlayer

@Override
public long getContentPosition() {
 if (isPlayingAd()) {
  playbackInfo.timeline.getPeriodByUid(playbackInfo.periodId.periodUid, period);
  return period.getPositionInWindowMs() + C.usToMs(playbackInfo.contentPositionUs);
 } else {
  return getCurrentPosition();
 }
}

代码示例来源：origin: google/ExoPlayer

private MediaPeriodInfo getMediaPeriodInfo(
  MediaPeriodId id, long contentPositionUs, long startPositionUs) {
 timeline.getPeriodByUid(id.periodUid, period);
 if (id.isAd()) {
  if (!period.isAdAvailable(id.adGroupIndex, id.adIndexInAdGroup)) {
   return null;
  }
  return getMediaPeriodInfoForAd(
    id.periodUid,
    id.adGroupIndex,
    id.adIndexInAdGroup,
    contentPositionUs,
    id.windowSequenceNumber);
 } else {
  return getMediaPeriodInfoForContent(id.periodUid, startPositionUs, id.windowSequenceNumber);
 }
}

代码示例来源：origin: google/ExoPlayer

@Override
protected FakeMediaPeriod createFakeMediaPeriod(
  MediaPeriodId id,
  TrackGroupArray trackGroupArray,
  Allocator allocator,
  EventDispatcher eventDispatcher,
  @Nullable TransferListener transferListener) {
 Period period = timeline.getPeriodByUid(id.periodUid, new Period());
 return new FakeAdaptiveMediaPeriod(
   trackGroupArray,
   eventDispatcher,
   allocator,
   chunkSourceFactory,
   period.durationUs,
   transferListener);
}

代码示例来源：origin: google/ExoPlayer

@Override
public final Period getPeriodByUid(Object uid, Period period) {
 Object childUid = getChildTimelineUidFromConcatenatedUid(uid);
 Object periodUid = getChildPeriodUidFromConcatenatedUid(uid);
 int childIndex = getChildIndexByChildUid(childUid);
 int firstWindowIndexInChild = getFirstWindowIndexByChildIndex(childIndex);
 getTimelineByChildIndex(childIndex).getPeriodByUid(periodUid, period);
 period.windowIndex += firstWindowIndexInChild;
 period.uid = uid;
 return period;
}

代码示例来源：origin: google/ExoPlayer

private boolean isLastInPeriod(MediaPeriodId id) {
 int adGroupCount = timeline.getPeriodByUid(id.periodUid, period).getAdGroupCount();
 if (adGroupCount == 0) {
  return true;
 }
 int lastAdGroupIndex = adGroupCount - 1;
 boolean isAd = id.isAd();
 if (period.getAdGroupTimeUs(lastAdGroupIndex) != C.TIME_END_OF_SOURCE) {
  // There's no postroll ad.
  return !isAd && id.endPositionUs == C.TIME_END_OF_SOURCE;
 }
 int postrollAdCount = period.getAdCountInAdGroup(lastAdGroupIndex);
 if (postrollAdCount == C.LENGTH_UNSET) {
  // We won't know if this is the last ad until we know how many postroll ads there are.
  return false;
 }
 boolean isLastAd =
   isAd && id.adGroupIndex == lastAdGroupIndex && id.adIndexInAdGroup == postrollAdCount - 1;
 return isLastAd || (!isAd && period.getFirstAdIndexToPlay(lastAdGroupIndex) == postrollAdCount);
}

代码示例来源：origin: google/ExoPlayer

int windowIndex = timeline.getPeriodByUid(periodUid, period).windowIndex;
if (oldFrontPeriodUid != null) {
 int oldFrontPeriodIndex = timeline.getIndexOfPeriod(oldFrontPeriodUid);

代码示例来源：origin: google/ExoPlayer

private MediaPeriodInfo getMediaPeriodInfoForContent(
  Object periodUid, long startPositionUs, long windowSequenceNumber) {
 int nextAdGroupIndex = period.getAdGroupIndexAfterPositionUs(startPositionUs);
 long endPositionUs =
   nextAdGroupIndex == C.INDEX_UNSET
     ? C.TIME_END_OF_SOURCE
     : period.getAdGroupTimeUs(nextAdGroupIndex);
 MediaPeriodId id = new MediaPeriodId(periodUid, windowSequenceNumber, endPositionUs);
 timeline.getPeriodByUid(id.periodUid, period);
 boolean isLastInPeriod = isLastInPeriod(id);
 boolean isLastInTimeline = isLastInTimeline(id, isLastInPeriod);
 long durationUs =
   endPositionUs == C.TIME_END_OF_SOURCE ? period.getDurationUs() : endPositionUs;
 return new MediaPeriodInfo(
   id, startPositionUs, C.TIME_UNSET, durationUs, isLastInPeriod, isLastInTimeline);
}

代码示例来源：origin: google/ExoPlayer

/**
 * Returns new media period info based on specified {@code mediaPeriodInfo} but taking into
 * account the current timeline. This method must only be called if the period is still part of
 * the current timeline.
 *
 * @param info Media period info for a media period based on an old timeline.
 * @return The updated media period info for the current timeline.
 */
public MediaPeriodInfo getUpdatedMediaPeriodInfo(MediaPeriodInfo info) {
 boolean isLastInPeriod = isLastInPeriod(info.id);
 boolean isLastInTimeline = isLastInTimeline(info.id, isLastInPeriod);
 timeline.getPeriodByUid(info.id.periodUid, period);
 long durationUs =
   info.id.isAd()
     ? period.getAdDurationUs(info.id.adGroupIndex, info.id.adIndexInAdGroup)
     : (info.id.endPositionUs == C.TIME_END_OF_SOURCE
       ? period.getDurationUs()
       : info.id.endPositionUs);
 return new MediaPeriodInfo(
   info.id,
   info.startPositionUs,
   info.contentPositionUs,
   durationUs,
   isLastInPeriod,
   isLastInTimeline);
}

代码示例来源：origin: google/ExoPlayer

/**
 * Resolves the specified timeline period and position to a {@link MediaPeriodId} that should be
 * played, returning an identifier for an ad group if one needs to be played before the specified
 * position, or an identifier for a content media period if not.
 *
 * @param periodUid The uid of the timeline period to play.
 * @param positionUs The next content position in the period to play.
 * @param windowSequenceNumber The sequence number of the window in the buffered sequence of
 *     windows this period is part of.
 * @return The identifier for the first media period to play, taking into account unplayed ads.
 */
private MediaPeriodId resolveMediaPeriodIdForAds(
  Object periodUid, long positionUs, long windowSequenceNumber) {
 timeline.getPeriodByUid(periodUid, period);
 int adGroupIndex = period.getAdGroupIndexForPositionUs(positionUs);
 if (adGroupIndex == C.INDEX_UNSET) {
  int nextAdGroupIndex = period.getAdGroupIndexAfterPositionUs(positionUs);
  long endPositionUs =
    nextAdGroupIndex == C.INDEX_UNSET
      ? C.TIME_END_OF_SOURCE
      : period.getAdGroupTimeUs(nextAdGroupIndex);
  return new MediaPeriodId(periodUid, windowSequenceNumber, endPositionUs);
 } else {
  int adIndexInAdGroup = period.getFirstAdIndexToPlay(adGroupIndex);
  return new MediaPeriodId(periodUid, adGroupIndex, adIndexInAdGroup, windowSequenceNumber);
 }
}

代码示例来源：origin: google/ExoPlayer

@Override
public long getContentBufferedPosition() {
 if (shouldMaskPosition()) {
  return maskingWindowPositionMs;
 }
 if (playbackInfo.loadingMediaPeriodId.windowSequenceNumber
   != playbackInfo.periodId.windowSequenceNumber) {
  return playbackInfo.timeline.getWindow(getCurrentWindowIndex(), window).getDurationMs();
 }
 long contentBufferedPositionUs = playbackInfo.bufferedPositionUs;
 if (playbackInfo.loadingMediaPeriodId.isAd()) {
  Timeline.Period loadingPeriod =
    playbackInfo.timeline.getPeriodByUid(playbackInfo.loadingMediaPeriodId.periodUid, period);
  contentBufferedPositionUs =
    loadingPeriod.getAdGroupTimeUs(playbackInfo.loadingMediaPeriodId.adGroupIndex);
  if (contentBufferedPositionUs == C.TIME_END_OF_SOURCE) {
   contentBufferedPositionUs = loadingPeriod.durationUs;
  }
 }
 return periodPositionUsToWindowPositionMs(
   playbackInfo.loadingMediaPeriodId, contentBufferedPositionUs);
}

代码示例来源：origin: google/ExoPlayer

private MediaPeriodInfo getMediaPeriodInfoForAd(
  Object periodUid,
  int adGroupIndex,
  int adIndexInAdGroup,
  long contentPositionUs,
  long windowSequenceNumber) {
 MediaPeriodId id =
   new MediaPeriodId(periodUid, adGroupIndex, adIndexInAdGroup, windowSequenceNumber);
 boolean isLastInPeriod = isLastInPeriod(id);
 boolean isLastInTimeline = isLastInTimeline(id, isLastInPeriod);
 long durationUs =
   timeline
     .getPeriodByUid(id.periodUid, period)
     .getAdDurationUs(id.adGroupIndex, id.adIndexInAdGroup);
 long startPositionUs =
   adIndexInAdGroup == period.getFirstAdIndexToPlay(adGroupIndex)
     ? period.getAdResumePositionUs()
     : 0;
 return new MediaPeriodInfo(
   id,
   startPositionUs,
   contentPositionUs,
   durationUs,
   isLastInPeriod,
   isLastInTimeline);
}

代码示例来源：origin: google/ExoPlayer

timeline.getPeriodByUid(currentPeriodId.periodUid, period);
if (currentPeriodId.isAd()) {
 int adGroupIndex = currentPeriodId.adGroupIndex;

代码示例来源：origin: google/ExoPlayer

timeline, timeline.getPeriodByUid(newPeriodUid, period).windowIndex, C.TIME_UNSET);
newPeriodUid = defaultPosition.first;
contentPositionUs = defaultPosition.second;