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Swap reading and playing media period updates.

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Both periods are rarely updated in the same iteration. If they are, advancing
the reading period first seems more logical and also more efficient as it may
avoid one extra doSomeWork iteration.

PiperOrigin-RevId: 260463735
This commit is contained in:
tonihei 2019-07-29 11:06:50 +01:00 committed by Oliver Woodman
parent 846e0666df
commit 7703676c87
1 changed files with 27 additions and 27 deletions
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54
library/core/src/main/java/com/google/android/exoplayer2/ExoPlayerImplInternal.java
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@ -1491,8 +1491,8 @@ import java.util.concurrent.atomic.AtomicBoolean;
return;
}
maybeUpdateLoadingPeriod();
maybeUpdatePlayingPeriod();
maybeUpdateReadingPeriod();
maybeUpdatePlayingPeriod();
}
private void maybeUpdateLoadingPeriod() throws IOException {
@ -1518,32 +1518,6 @@ import java.util.concurrent.atomic.AtomicBoolean;
}
}
private void maybeUpdatePlayingPeriod() throws ExoPlaybackException {
boolean advancedPlayingPeriod = false;
while (shouldAdvancePlayingPeriod()) {
if (advancedPlayingPeriod) {
// If we advance more than one period at a time, notify listeners after each update.
maybeNotifyPlaybackInfoChanged();
}
MediaPeriodHolder oldPlayingPeriodHolder = queue.getPlayingPeriod();
MediaPeriodHolder newPlayingPeriodHolder = queue.advancePlayingPeriod();
updatePlayingPeriodRenderers(oldPlayingPeriodHolder);
playbackInfo =
playbackInfo.copyWithNewPosition(
newPlayingPeriodHolder.info.id,
newPlayingPeriodHolder.info.startPositionUs,
newPlayingPeriodHolder.info.contentPositionUs,
getTotalBufferedDurationUs());
int discontinuityReason =
oldPlayingPeriodHolder.info.isLastInTimelinePeriod
? Player.DISCONTINUITY_REASON_PERIOD_TRANSITION
: Player.DISCONTINUITY_REASON_AD_INSERTION;
playbackInfoUpdate.setPositionDiscontinuity(discontinuityReason);
updatePlaybackPositions();
advancedPlayingPeriod = true;
}
}
private void maybeUpdateReadingPeriod() throws ExoPlaybackException, IOException {
MediaPeriodHolder readingPeriodHolder = queue.getReadingPeriod();
if (readingPeriodHolder == null) {
@ -1621,6 +1595,32 @@ import java.util.concurrent.atomic.AtomicBoolean;
}
}
private void maybeUpdatePlayingPeriod() throws ExoPlaybackException {
boolean advancedPlayingPeriod = false;
while (shouldAdvancePlayingPeriod()) {
if (advancedPlayingPeriod) {
// If we advance more than one period at a time, notify listeners after each update.
maybeNotifyPlaybackInfoChanged();
}
MediaPeriodHolder oldPlayingPeriodHolder = queue.getPlayingPeriod();
MediaPeriodHolder newPlayingPeriodHolder = queue.advancePlayingPeriod();
updatePlayingPeriodRenderers(oldPlayingPeriodHolder);
playbackInfo =
playbackInfo.copyWithNewPosition(
newPlayingPeriodHolder.info.id,
newPlayingPeriodHolder.info.startPositionUs,
newPlayingPeriodHolder.info.contentPositionUs,
getTotalBufferedDurationUs());
int discontinuityReason =
oldPlayingPeriodHolder.info.isLastInTimelinePeriod
? Player.DISCONTINUITY_REASON_PERIOD_TRANSITION
: Player.DISCONTINUITY_REASON_AD_INSERTION;
playbackInfoUpdate.setPositionDiscontinuity(discontinuityReason);
updatePlaybackPositions();
advancedPlayingPeriod = true;
}
}
private boolean shouldAdvancePlayingPeriod() {
if (!playWhenReady) {
return false;