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Make ImaAdsLoader robust to calls after it's released

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Issue: #3879

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=202100576
This commit is contained in:
andrewlewis 2018-06-26 03:03:36 -07:00 committed by Oliver Woodman
parent 4a8bd911cf
commit fd8751dbc6
2 changed files with 33 additions and 20 deletions
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2
RELEASENOTES.md
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@ -5,6 +5,8 @@
* DRM:
* Allow DrmInitData to carry a license server URL
([#3393](https://github.com/google/ExoPlayer/issues/3393)).
* IMA: Fix behavior when creating/releasing the player then releasing
`ImaAdsLoader` ((#3879)[https://github.com/google/ExoPlayer/issues/3879]).
### 2.8.2 ###

51
extensions/ima/src/main/java/com/google/android/exoplayer2/ext/ima/ImaAdsLoader.java
View file

@ -267,13 +267,9 @@ public final class ImaAdsLoader extends Player.DefaultEventListener implements A
/** The expected ad group index that IMA should load next. */
private int expectedAdGroupIndex;
/**
* The index of the current ad group that IMA is loading.
*/
/** The index of the current ad group that IMA is loading. */
private int adGroupIndex;
/**
* Whether IMA has sent an ad event to pause content since the last resume content event.
*/
/** Whether IMA has sent an ad event to pause content since the last resume content event. */
private boolean imaPausedContent;
/** The current ad playback state. */
private @ImaAdState int imaAdState;
@ -285,9 +281,7 @@ public final class ImaAdsLoader extends Player.DefaultEventListener implements A
// Fields tracking the player/loader state.
/**
* Whether the player is playing an ad.
*/
/** Whether the player is playing an ad. */
private boolean playingAd;
/**
* If the player is playing an ad, stores the ad index in its ad group. {@link C#INDEX_UNSET}
@ -310,13 +304,9 @@ public final class ImaAdsLoader extends Player.DefaultEventListener implements A
* content progress should increase. {@link C#TIME_UNSET} otherwise.
*/
private long fakeContentProgressOffsetMs;
/**
* Stores the pending content position when a seek operation was intercepted to play an ad.
*/
/** Stores the pending content position when a seek operation was intercepted to play an ad. */
private long pendingContentPositionMs;
/**
* Whether {@link #getContentProgress()} has sent {@link #pendingContentPositionMs} to IMA.
*/
/** Whether {@link #getContentProgress()} has sent {@link #pendingContentPositionMs} to IMA. */
private boolean sentPendingContentPositionMs;
/**
@ -509,6 +499,11 @@ public final class ImaAdsLoader extends Player.DefaultEventListener implements A
adsManager.destroy();
adsManager = null;
}
imaPausedContent = false;
imaAdState = IMA_AD_STATE_NONE;
pendingAdLoadError = null;
adPlaybackState = AdPlaybackState.NONE;
updateAdPlaybackState();
}
@Override
@ -558,7 +553,7 @@ public final class ImaAdsLoader extends Player.DefaultEventListener implements A
Log.d(TAG, "onAdEvent: " + adEventType);
}
if (adsManager == null) {
Log.w(TAG, "Dropping ad event after release: " + adEvent);
Log.w(TAG, "Ignoring AdEvent after release: " + adEvent);
return;
}
try {
@ -654,6 +649,13 @@ public final class ImaAdsLoader extends Player.DefaultEventListener implements A
@Override
public void loadAd(String adUriString) {
try {
if (DEBUG) {
Log.d(TAG, "loadAd in ad group " + adGroupIndex);
}
if (adsManager == null) {
Log.w(TAG, "Ignoring loadAd after release");
return;
}
if (adGroupIndex == C.INDEX_UNSET) {
Log.w(
TAG,
@ -662,9 +664,6 @@ public final class ImaAdsLoader extends Player.DefaultEventListener implements A
adGroupIndex = expectedAdGroupIndex;
adsManager.start();
}
if (DEBUG) {
Log.d(TAG, "loadAd in ad group " + adGroupIndex);
}
int adIndexInAdGroup = getAdIndexInAdGroupToLoad(adGroupIndex);
if (adIndexInAdGroup == C.INDEX_UNSET) {
Log.w(TAG, "Unexpected loadAd in an ad group with no remaining unavailable ads");
@ -693,6 +692,10 @@ public final class ImaAdsLoader extends Player.DefaultEventListener implements A
if (DEBUG) {
Log.d(TAG, "playAd");
}
if (adsManager == null) {
Log.w(TAG, "Ignoring playAd after release");
return;
}
switch (imaAdState) {
case IMA_AD_STATE_PLAYING:
// IMA does not always call stopAd before resuming content.
@ -736,6 +739,10 @@ public final class ImaAdsLoader extends Player.DefaultEventListener implements A
if (DEBUG) {
Log.d(TAG, "stopAd");
}
if (adsManager == null) {
Log.w(TAG, "Ignoring stopAd after release");
return;
}
if (player == null) {
// Sometimes messages from IMA arrive after detaching the player. See [Internal: b/63801642].
Log.w(TAG, "Unexpected stopAd while detached");
@ -1083,6 +1090,10 @@ public final class ImaAdsLoader extends Player.DefaultEventListener implements A
Log.d(
TAG, "Prepare error for ad " + adIndexInAdGroup + " in group " + adGroupIndex, exception);
}
if (adsManager == null) {
Log.w(TAG, "Ignoring ad prepare error after release");
return;
}
if (imaAdState == IMA_AD_STATE_NONE) {
// Send IMA a content position at the ad group so that it will try to play it, at which point
// we can notify that it failed to load.
@ -1165,7 +1176,7 @@ public final class ImaAdsLoader extends Player.DefaultEventListener implements A
Log.e(TAG, message, cause);
// We can't recover from an unexpected error in general, so skip all remaining ads.
if (adPlaybackState == null) {
adPlaybackState = new AdPlaybackState();
adPlaybackState = AdPlaybackState.NONE;
} else {
for (int i = 0; i < adPlaybackState.adGroupCount; i++) {
adPlaybackState = adPlaybackState.withSkippedAdGroup(i);