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[video_player_avfoundation] removes unnecessary duration and size check before sending the initialized event #9534
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Original file line number | Diff line number | Diff line change |
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@@ -11,8 +11,6 @@ | |
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static void *timeRangeContext = &timeRangeContext; | ||
static void *statusContext = &statusContext; | ||
static void *presentationSizeContext = &presentationSizeContext; | ||
static void *durationContext = &durationContext; | ||
static void *playbackLikelyToKeepUpContext = &playbackLikelyToKeepUpContext; | ||
static void *rateContext = &rateContext; | ||
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@@ -64,8 +62,6 @@ static void FVPRemoveKeyValueObservers(NSObject *observer, | |
return @{ | ||
@"loadedTimeRanges" : [NSValue valueWithPointer:timeRangeContext], | ||
@"status" : [NSValue valueWithPointer:statusContext], | ||
@"presentationSize" : [NSValue valueWithPointer:presentationSizeContext], | ||
@"duration" : [NSValue valueWithPointer:durationContext], | ||
@"playbackLikelyToKeepUp" : [NSValue valueWithPointer:playbackLikelyToKeepUpContext], | ||
}; | ||
} | ||
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@@ -277,14 +273,6 @@ - (void)observeValueForKeyPath:(NSString *)path | |
} else if (context == statusContext) { | ||
AVPlayerItem *item = (AVPlayerItem *)object; | ||
[self reportStatusForPlayerItem:item]; | ||
} else if (context == presentationSizeContext || context == durationContext) { | ||
AVPlayerItem *item = (AVPlayerItem *)object; | ||
if (item.status == AVPlayerItemStatusReadyToPlay) { | ||
// Due to an apparent bug, when the player item is ready, it still may not have determined | ||
// its presentation size or duration. When these properties are finally set, re-check if | ||
// all required properties and instantiate the event sink if it is not already set up. | ||
[self reportInitializedIfReadyToPlay]; | ||
} | ||
} else if (context == playbackLikelyToKeepUpContext) { | ||
[self updatePlayingState]; | ||
if ([[_player currentItem] isPlaybackLikelyToKeepUp]) { | ||
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@@ -301,6 +289,8 @@ - (void)observeValueForKeyPath:(NSString *)path | |
} | ||
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- (void)reportStatusForPlayerItem:(AVPlayerItem *)item { | ||
NSAssert(self.eventListener, | ||
@"reportStatusForPlayerItem was called when the event listener was not set."); | ||
switch (item.status) { | ||
case AVPlayerItemStatusFailed: | ||
[self sendFailedToLoadVideoEvent]; | ||
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@@ -383,52 +373,15 @@ - (void)sendFailedToLoadVideoEvent { | |
} | ||
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- (void)reportInitializedIfReadyToPlay { | ||
if (!_isInitialized) { | ||
AVPlayerItem *currentItem = self.player.currentItem; | ||
CGSize size = currentItem.presentationSize; | ||
CGFloat width = size.width; | ||
CGFloat height = size.height; | ||
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// Wait until tracks are loaded to check duration or if there are any videos. | ||
AVAsset *asset = currentItem.asset; | ||
if ([asset statusOfValueForKey:@"tracks" error:nil] != AVKeyValueStatusLoaded) { | ||
void (^trackCompletionHandler)(void) = ^{ | ||
if ([asset statusOfValueForKey:@"tracks" error:nil] != AVKeyValueStatusLoaded) { | ||
// Cancelled, or something failed. | ||
return; | ||
} | ||
// This completion block will run on an AVFoundation background queue. | ||
// Hop back to the main thread to set up event sink. | ||
[self performSelector:_cmd onThread:NSThread.mainThread withObject:self waitUntilDone:NO]; | ||
}; | ||
[asset loadValuesAsynchronouslyForKeys:@[ @"tracks" ] | ||
completionHandler:trackCompletionHandler]; | ||
return; | ||
} | ||
AVPlayerItem *currentItem = self.player.currentItem; | ||
NSAssert(currentItem.status == AVPlayerItemStatusReadyToPlay, | ||
@"reportInitializedIfReadyToPlay was called when the item wasn't ready to play."); | ||
NSAssert(!_isInitialized, @"reportInitializedIfReadyToPlay should only be called once."); | ||
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There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. Removed the duration / size checks since now the caller has to guarantee the item is Before this you may enter this |
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BOOL hasVideoTracks = [asset tracksWithMediaType:AVMediaTypeVideo].count != 0; | ||
// Audio-only HLS files have no size, so `currentItem.tracks.count` must be used to check for | ||
// track presence, as AVAsset does not always provide track information in HLS streams. | ||
BOOL hasNoTracks = currentItem.tracks.count == 0 && asset.tracks.count == 0; | ||
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// The player has not yet initialized when it has no size, unless it is an audio-only track. | ||
// HLS m3u8 video files never load any tracks, and are also not yet initialized until they have | ||
// a size. | ||
if ((hasVideoTracks || hasNoTracks) && height == CGSizeZero.height && | ||
width == CGSizeZero.width) { | ||
return; | ||
} | ||
// The player may be initialized but still needs to determine the duration. | ||
int64_t duration = [self duration]; | ||
if (duration == 0) { | ||
return; | ||
} | ||
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_isInitialized = YES; | ||
[self updatePlayingState]; | ||
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[self.eventListener videoPlayerDidInitializeWithDuration:duration size:size]; | ||
} | ||
_isInitialized = YES; | ||
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. looks like the flag is still used by the There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. If |
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[self updatePlayingState]; | ||
[self.eventListener videoPlayerDidInitializeWithDuration:self.duration | ||
size:currentItem.presentationSize]; | ||
} | ||
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#pragma mark - FVPVideoPlayerInstanceApi | ||
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Does the
status
API guarantee that it can only transition toreadyToPlay
once? It seems likely that it would, but I didn't see any docs in a quick look.