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https://github.com/samsonjs/media.git
synced 2026-04-15 12:55:46 +00:00
Ensure listener invocations use final state variable.
The MediaControllerImplBase listener invocations currently use the
class member state that can change if one of the listener method
implementations changes the state recursively.
Updating the listener invocations to use a final local variable
ensures all listeners get consistent updates.
PiperOrigin-RevId: 487503373
(cherry picked from commit 33bea391d4)
This commit is contained in:
tonihei
microkatz
parent
a9eb121169
commit
7f17ff6d00
3 changed files with 109 additions and 70 deletions
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@ -2320,10 +2320,7 @@ import org.checkerframework.checker.nullness.qual.NonNull;
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}
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@SuppressWarnings("deprecation") // Implementing and calling deprecated listener method.
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void onPlayerInfoChanged(
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PlayerInfo newPlayerInfo,
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@Player.TimelineChangeReason int timelineChangedReason,
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boolean isTimelineExcluded) {
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void onPlayerInfoChanged(PlayerInfo newPlayerInfo, boolean isTimelineExcluded) {
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if (!isConnected()) {
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return;
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}
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@ -2335,169 +2332,178 @@ import org.checkerframework.checker.nullness.qual.NonNull;
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return;
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}
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PlayerInfo oldPlayerInfo = playerInfo;
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playerInfo = newPlayerInfo;
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if (isTimelineExcluded) {
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playerInfo =
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playerInfo.copyWithTimeline(
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newPlayerInfo =
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newPlayerInfo.copyWithTimeline(
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pendingPlayerInfoUpdateTimeline != null
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? pendingPlayerInfoUpdateTimeline
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: oldPlayerInfo.timeline);
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}
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// Assigning class variable now so that all getters called from listeners see the updated value.
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// But we need to use a local final variable to ensure listeners get consistent parameters.
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playerInfo = newPlayerInfo;
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PlayerInfo finalPlayerInfo = newPlayerInfo;
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pendingPlayerInfoUpdateTimeline = null;
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PlaybackException oldPlayerError = oldPlayerInfo.playerError;
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PlaybackException playerError = playerInfo.playerError;
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PlaybackException playerError = finalPlayerInfo.playerError;
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boolean errorsMatch =
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oldPlayerError == playerError
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|| (oldPlayerError != null && oldPlayerError.errorInfoEquals(playerError));
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if (!errorsMatch) {
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listeners.queueEvent(
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/* eventFlag= */ Player.EVENT_PLAYER_ERROR,
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listener -> listener.onPlayerErrorChanged(playerInfo.playerError));
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if (playerInfo.playerError != null) {
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listener -> listener.onPlayerErrorChanged(finalPlayerInfo.playerError));
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if (finalPlayerInfo.playerError != null) {
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listeners.queueEvent(
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/* eventFlag= */ Player.EVENT_PLAYER_ERROR,
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listener -> listener.onPlayerError(playerInfo.playerError));
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listener -> listener.onPlayerError(finalPlayerInfo.playerError));
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}
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}
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MediaItem oldCurrentMediaItem = oldPlayerInfo.getCurrentMediaItem();
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MediaItem currentMediaItem = playerInfo.getCurrentMediaItem();
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MediaItem currentMediaItem = finalPlayerInfo.getCurrentMediaItem();
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if (!Util.areEqual(oldCurrentMediaItem, currentMediaItem)) {
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listeners.queueEvent(
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/* eventFlag= */ Player.EVENT_MEDIA_ITEM_TRANSITION,
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listener ->
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listener.onMediaItemTransition(
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currentMediaItem, playerInfo.mediaItemTransitionReason));
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currentMediaItem, finalPlayerInfo.mediaItemTransitionReason));
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}
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if (!Util.areEqual(oldPlayerInfo.currentTracks, playerInfo.currentTracks)) {
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if (!Util.areEqual(oldPlayerInfo.currentTracks, finalPlayerInfo.currentTracks)) {
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listeners.queueEvent(
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/* eventFlag= */ Player.EVENT_TRACKS_CHANGED,
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listener -> listener.onTracksChanged(playerInfo.currentTracks));
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listener -> listener.onTracksChanged(finalPlayerInfo.currentTracks));
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}
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if (!Util.areEqual(oldPlayerInfo.playbackParameters, playerInfo.playbackParameters)) {
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if (!Util.areEqual(oldPlayerInfo.playbackParameters, finalPlayerInfo.playbackParameters)) {
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listeners.queueEvent(
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/* eventFlag= */ Player.EVENT_PLAYBACK_PARAMETERS_CHANGED,
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listener -> listener.onPlaybackParametersChanged(playerInfo.playbackParameters));
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listener -> listener.onPlaybackParametersChanged(finalPlayerInfo.playbackParameters));
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}
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if (oldPlayerInfo.repeatMode != playerInfo.repeatMode) {
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if (oldPlayerInfo.repeatMode != finalPlayerInfo.repeatMode) {
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listeners.queueEvent(
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/* eventFlag= */ Player.EVENT_REPEAT_MODE_CHANGED,
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listener -> listener.onRepeatModeChanged(playerInfo.repeatMode));
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listener -> listener.onRepeatModeChanged(finalPlayerInfo.repeatMode));
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}
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if (oldPlayerInfo.shuffleModeEnabled != playerInfo.shuffleModeEnabled) {
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if (oldPlayerInfo.shuffleModeEnabled != finalPlayerInfo.shuffleModeEnabled) {
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listeners.queueEvent(
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/* eventFlag= */ Player.EVENT_SHUFFLE_MODE_ENABLED_CHANGED,
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listener -> listener.onShuffleModeEnabledChanged(playerInfo.shuffleModeEnabled));
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listener -> listener.onShuffleModeEnabledChanged(finalPlayerInfo.shuffleModeEnabled));
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}
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if (!isTimelineExcluded && !Util.areEqual(oldPlayerInfo.timeline, playerInfo.timeline)) {
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if (!isTimelineExcluded && !Util.areEqual(oldPlayerInfo.timeline, finalPlayerInfo.timeline)) {
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listeners.queueEvent(
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/* eventFlag= */ Player.EVENT_TIMELINE_CHANGED,
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listener -> listener.onTimelineChanged(playerInfo.timeline, timelineChangedReason));
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listener ->
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listener.onTimelineChanged(
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finalPlayerInfo.timeline, Player.TIMELINE_CHANGE_REASON_SOURCE_UPDATE));
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}
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if (!Util.areEqual(oldPlayerInfo.playlistMetadata, playerInfo.playlistMetadata)) {
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if (!Util.areEqual(oldPlayerInfo.playlistMetadata, finalPlayerInfo.playlistMetadata)) {
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listeners.queueEvent(
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/* eventFlag= */ Player.EVENT_PLAYLIST_METADATA_CHANGED,
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listener -> listener.onPlaylistMetadataChanged(playerInfo.playlistMetadata));
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listener -> listener.onPlaylistMetadataChanged(finalPlayerInfo.playlistMetadata));
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}
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if (oldPlayerInfo.volume != playerInfo.volume) {
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if (oldPlayerInfo.volume != finalPlayerInfo.volume) {
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listeners.queueEvent(
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/* eventFlag= */ Player.EVENT_VOLUME_CHANGED,
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listener -> listener.onVolumeChanged(playerInfo.volume));
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listener -> listener.onVolumeChanged(finalPlayerInfo.volume));
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}
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if (!Util.areEqual(oldPlayerInfo.audioAttributes, playerInfo.audioAttributes)) {
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if (!Util.areEqual(oldPlayerInfo.audioAttributes, finalPlayerInfo.audioAttributes)) {
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listeners.queueEvent(
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/* eventFlag= */ Player.EVENT_AUDIO_ATTRIBUTES_CHANGED,
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listener -> listener.onAudioAttributesChanged(playerInfo.audioAttributes));
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listener -> listener.onAudioAttributesChanged(finalPlayerInfo.audioAttributes));
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}
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if (!oldPlayerInfo.cueGroup.cues.equals(playerInfo.cueGroup.cues)) {
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if (!oldPlayerInfo.cueGroup.cues.equals(finalPlayerInfo.cueGroup.cues)) {
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listeners.queueEvent(
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/* eventFlag= */ Player.EVENT_CUES,
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listener -> listener.onCues(playerInfo.cueGroup.cues));
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listener -> listener.onCues(finalPlayerInfo.cueGroup.cues));
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listeners.queueEvent(
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/* eventFlag= */ Player.EVENT_CUES, listener -> listener.onCues(playerInfo.cueGroup));
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/* eventFlag= */ Player.EVENT_CUES,
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listener -> listener.onCues(finalPlayerInfo.cueGroup));
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}
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if (!Util.areEqual(oldPlayerInfo.deviceInfo, playerInfo.deviceInfo)) {
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if (!Util.areEqual(oldPlayerInfo.deviceInfo, finalPlayerInfo.deviceInfo)) {
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listeners.queueEvent(
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/* eventFlag= */ Player.EVENT_DEVICE_INFO_CHANGED,
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listener -> listener.onDeviceInfoChanged(playerInfo.deviceInfo));
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listener -> listener.onDeviceInfoChanged(finalPlayerInfo.deviceInfo));
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}
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if (oldPlayerInfo.deviceVolume != playerInfo.deviceVolume
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|| oldPlayerInfo.deviceMuted != playerInfo.deviceMuted) {
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if (oldPlayerInfo.deviceVolume != finalPlayerInfo.deviceVolume
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|| oldPlayerInfo.deviceMuted != finalPlayerInfo.deviceMuted) {
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listeners.queueEvent(
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/* eventFlag= */ Player.EVENT_DEVICE_VOLUME_CHANGED,
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listener ->
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listener.onDeviceVolumeChanged(playerInfo.deviceVolume, playerInfo.deviceMuted));
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listener.onDeviceVolumeChanged(
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finalPlayerInfo.deviceVolume, finalPlayerInfo.deviceMuted));
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}
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if (oldPlayerInfo.playWhenReady != playerInfo.playWhenReady) {
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if (oldPlayerInfo.playWhenReady != finalPlayerInfo.playWhenReady) {
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listeners.queueEvent(
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/* eventFlag= */ Player.EVENT_PLAY_WHEN_READY_CHANGED,
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listener ->
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listener.onPlayWhenReadyChanged(
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playerInfo.playWhenReady, playerInfo.playWhenReadyChangedReason));
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finalPlayerInfo.playWhenReady, finalPlayerInfo.playWhenReadyChangedReason));
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}
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if (oldPlayerInfo.playbackSuppressionReason != playerInfo.playbackSuppressionReason) {
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if (oldPlayerInfo.playbackSuppressionReason != finalPlayerInfo.playbackSuppressionReason) {
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listeners.queueEvent(
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/* eventFlag= */ Player.EVENT_PLAYBACK_SUPPRESSION_REASON_CHANGED,
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listener ->
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listener.onPlaybackSuppressionReasonChanged(playerInfo.playbackSuppressionReason));
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listener.onPlaybackSuppressionReasonChanged(
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finalPlayerInfo.playbackSuppressionReason));
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}
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if (oldPlayerInfo.playbackState != playerInfo.playbackState) {
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if (oldPlayerInfo.playbackState != finalPlayerInfo.playbackState) {
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listeners.queueEvent(
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/* eventFlag= */ Player.EVENT_PLAYBACK_STATE_CHANGED,
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listener -> listener.onPlaybackStateChanged(playerInfo.playbackState));
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listener -> listener.onPlaybackStateChanged(finalPlayerInfo.playbackState));
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}
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if (oldPlayerInfo.isPlaying != playerInfo.isPlaying) {
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if (oldPlayerInfo.isPlaying != finalPlayerInfo.isPlaying) {
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listeners.queueEvent(
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/* eventFlag= */ Player.EVENT_IS_PLAYING_CHANGED,
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listener -> listener.onIsPlayingChanged(playerInfo.isPlaying));
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listener -> listener.onIsPlayingChanged(finalPlayerInfo.isPlaying));
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}
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if (oldPlayerInfo.isLoading != playerInfo.isLoading) {
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if (oldPlayerInfo.isLoading != finalPlayerInfo.isLoading) {
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listeners.queueEvent(
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/* eventFlag= */ Player.EVENT_IS_LOADING_CHANGED,
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listener -> listener.onIsLoadingChanged(playerInfo.isLoading));
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listener -> listener.onIsLoadingChanged(finalPlayerInfo.isLoading));
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}
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if (!Util.areEqual(oldPlayerInfo.videoSize, playerInfo.videoSize)) {
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if (!Util.areEqual(oldPlayerInfo.videoSize, finalPlayerInfo.videoSize)) {
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listeners.queueEvent(
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/* eventFlag= */ Player.EVENT_VIDEO_SIZE_CHANGED,
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listener -> listener.onVideoSizeChanged(playerInfo.videoSize));
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listener -> listener.onVideoSizeChanged(finalPlayerInfo.videoSize));
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}
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if (!Util.areEqual(oldPlayerInfo.oldPositionInfo, playerInfo.oldPositionInfo)
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|| !Util.areEqual(oldPlayerInfo.newPositionInfo, playerInfo.newPositionInfo)) {
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if (!Util.areEqual(oldPlayerInfo.oldPositionInfo, finalPlayerInfo.oldPositionInfo)
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|| !Util.areEqual(oldPlayerInfo.newPositionInfo, finalPlayerInfo.newPositionInfo)) {
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listeners.queueEvent(
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/* eventFlag= */ Player.EVENT_POSITION_DISCONTINUITY,
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listener ->
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listener.onPositionDiscontinuity(
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playerInfo.oldPositionInfo,
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playerInfo.newPositionInfo,
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playerInfo.discontinuityReason));
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finalPlayerInfo.oldPositionInfo,
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finalPlayerInfo.newPositionInfo,
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finalPlayerInfo.discontinuityReason));
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}
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if (!Util.areEqual(oldPlayerInfo.mediaMetadata, playerInfo.mediaMetadata)) {
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if (!Util.areEqual(oldPlayerInfo.mediaMetadata, finalPlayerInfo.mediaMetadata)) {
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listeners.queueEvent(
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/* eventFlag= */ Player.EVENT_MEDIA_METADATA_CHANGED,
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listener -> listener.onMediaMetadataChanged(playerInfo.mediaMetadata));
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listener -> listener.onMediaMetadataChanged(finalPlayerInfo.mediaMetadata));
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}
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if (oldPlayerInfo.seekBackIncrementMs != playerInfo.seekBackIncrementMs) {
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if (oldPlayerInfo.seekBackIncrementMs != finalPlayerInfo.seekBackIncrementMs) {
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listeners.queueEvent(
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/* eventFlag= */ Player.EVENT_SEEK_BACK_INCREMENT_CHANGED,
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listener -> listener.onSeekBackIncrementChanged(playerInfo.seekBackIncrementMs));
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listener -> listener.onSeekBackIncrementChanged(finalPlayerInfo.seekBackIncrementMs));
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}
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if (oldPlayerInfo.seekForwardIncrementMs != playerInfo.seekForwardIncrementMs) {
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if (oldPlayerInfo.seekForwardIncrementMs != finalPlayerInfo.seekForwardIncrementMs) {
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listeners.queueEvent(
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/* eventFlag= */ Player.EVENT_SEEK_FORWARD_INCREMENT_CHANGED,
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listener -> listener.onSeekForwardIncrementChanged(playerInfo.seekForwardIncrementMs));
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listener ->
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listener.onSeekForwardIncrementChanged(finalPlayerInfo.seekForwardIncrementMs));
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}
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if (oldPlayerInfo.maxSeekToPreviousPositionMs != newPlayerInfo.maxSeekToPreviousPositionMs) {
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if (oldPlayerInfo.maxSeekToPreviousPositionMs != finalPlayerInfo.maxSeekToPreviousPositionMs) {
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listeners.queueEvent(
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/* eventFlag= */ Player.EVENT_MAX_SEEK_TO_PREVIOUS_POSITION_CHANGED,
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listener ->
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listener.onMaxSeekToPreviousPositionChanged(
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newPlayerInfo.maxSeekToPreviousPositionMs));
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finalPlayerInfo.maxSeekToPreviousPositionMs));
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}
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if (!Util.areEqual(
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oldPlayerInfo.trackSelectionParameters, newPlayerInfo.trackSelectionParameters)) {
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oldPlayerInfo.trackSelectionParameters, finalPlayerInfo.trackSelectionParameters)) {
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listeners.queueEvent(
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/* eventFlag= */ Player.EVENT_TRACK_SELECTION_PARAMETERS_CHANGED,
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listener ->
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listener.onTrackSelectionParametersChanged(newPlayerInfo.trackSelectionParameters));
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listener.onTrackSelectionParametersChanged(finalPlayerInfo.trackSelectionParameters));
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}
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listeners.flushEvents();
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}
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@ -22,7 +22,6 @@ import android.os.Bundle;
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import android.os.Handler;
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import android.text.TextUtils;
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import androidx.annotation.Nullable;
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import androidx.media3.common.Player;
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import androidx.media3.common.Player.Commands;
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import androidx.media3.common.util.BundleableUtil;
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import androidx.media3.common.util.Log;
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@ -180,11 +179,7 @@ import org.checkerframework.checker.nullness.qual.NonNull;
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return;
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}
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dispatchControllerTaskOnHandler(
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controller ->
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controller.onPlayerInfoChanged(
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playerInfo,
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/* timelineChangedReason= */ Player.TIMELINE_CHANGE_REASON_SOURCE_UPDATE,
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isTimelineExcluded));
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controller -> controller.onPlayerInfoChanged(playerInfo, isTimelineExcluded));
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}
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@Override
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@ -3300,6 +3300,44 @@ public class MediaControllerListenerTest {
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assertThat(getEventsAsList(eventsRef.get())).containsExactly(Player.EVENT_RENDERED_FIRST_FRAME);
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}
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@Test
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public void recursiveChangesFromListeners_reportConsistentValuesForAllListeners()
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throws Exception {
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// We add two listeners to the controller. The first stops the player as soon as it's ready and
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// both record the state change events they receive.
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MediaController controller = controllerTestRule.createController(remoteSession.getToken());
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List<Integer> listener1States = new ArrayList<>();
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List<Integer> listener2States = new ArrayList<>();
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CountDownLatch latch = new CountDownLatch(4);
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Player.Listener listener1 =
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new Player.Listener() {
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@Override
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public void onPlaybackStateChanged(@Player.State int playbackState) {
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listener1States.add(playbackState);
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if (playbackState == Player.STATE_READY) {
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controller.stop();
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}
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latch.countDown();
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}
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};
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Player.Listener listener2 =
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new Player.Listener() {
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@Override
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public void onPlaybackStateChanged(@Player.State int playbackState) {
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listener2States.add(playbackState);
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latch.countDown();
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}
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};
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controller.addListener(listener1);
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controller.addListener(listener2);
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remoteSession.getMockPlayer().notifyPlaybackStateChanged(Player.STATE_READY);
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assertThat(latch.await(TIMEOUT_MS, MILLISECONDS)).isTrue();
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assertThat(listener1States).containsExactly(Player.STATE_READY, Player.STATE_IDLE).inOrder();
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assertThat(listener2States).containsExactly(Player.STATE_READY, Player.STATE_IDLE).inOrder();
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}
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private void testControllerAfterSessionIsClosed(String id) throws Exception {
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MediaController controller = controllerTestRule.createController(remoteSession.getToken());
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// This causes the session service to die.
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