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Updated iOS image classifier delegate name

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This commit is contained in:
Prianka Liz Kariat 2023-05-04 16:16:45 +05:30
parent 7797aa932b
commit 244dcb727e
4 changed files with 25 additions and 25 deletions
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4
mediapipe/tasks/ios/vision/image_classifier/sources/MPPImageClassifier.h
View File

@ -166,7 +166,7 @@ NS_SWIFT_NAME(ImageClassifier)
* the provided `MPPImage`. Only use this method when the `MPPImageClassifier` is created with
* `MPPRunningModeLiveStream`.
* The object which needs to be continuously notified of the available results of image
* classification must confirm to `MPPImageClassifierDelegate` protocol and implement the
* classification must confirm to `MPPImageClassifierLiveStreamDelegate` protocol and implement the
* `imageClassifier:didFinishClassificationWithResult:timestampInMilliseconds:error:`
* delegate method.
*
@ -193,7 +193,7 @@ NS_SWIFT_NAME(ImageClassifier)
* of the provided `MPPImage`. Only use this method when the `MPPImageClassifier` is created with
* `MPPRunningModeLiveStream`.
* The object which needs to be continuously notified of the available results of image
* classification must confirm to `MPPImageClassifierDelegate` protocol and implement the
* classification must confirm to `MPPImageClassifierLiveStreamDelegate` protocol and implement the
* `imageClassifier:didFinishClassificationWithResult:timestampInMilliseconds:error:` delegate
* method.
*

29
mediapipe/tasks/ios/vision/image_classifier/sources/MPPImageClassifier.mm
View File

@ -54,14 +54,14 @@ static NSString *const kTaskName = @"imageClassifier";
/** iOS Vision Task Runner */
MPPVisionTaskRunner *_visionTaskRunner;
}
@property(nonatomic, weak) id<MPPImageClassifierDelegate> imageClassifierDelegate;
@property(nonatomic, weak) id<MPPImageClassifierLiveStreamDelegate>
imageClassifierLiveStreamDelegate;
@end
@implementation MPPImageClassifier
- (instancetype)initWithOptions:(MPPImageClassifierOptions *)options error:(NSError **)error {
self = [super init];
NSLog(@"Image Classifier Initializing with dispatch queu and weak self");
if (self) {
MPPTaskInfo *taskInfo = [[MPPTaskInfo alloc]
initWithTaskGraphName:kTaskGraphName
@ -84,9 +84,8 @@ static NSString *const kTaskName = @"imageClassifier";
PacketsCallback packetsCallback = nullptr;
if (options.imageClassifierDelegate) {
_imageClassifierDelegate = options.imageClassifierDelegate;
if (options.imageClassifierLiveStreamDelegate) {
_imageClassifierLiveStreamDelegate = options.imageClassifierLiveStreamDelegate;
// Capturing `self` as weak in order to avoid `self` being kept in memory
// and cause a retain cycle, after self is set to `nil`.
MPPImageClassifier *__weak weakSelf = self;
@ -95,13 +94,13 @@ static NSString *const kTaskName = @"imageClassifier";
// asynchronously. This is to ensure that if the client performs a long running operation in
// the delegate method, the queue on which the C++ callbacks is invoked is not blocked and is
// freed up to continue with its operations.
const char *queueName = [MPPVisionTaskRunner uniqueQueueNameWithTaskName:kTaskName];
const char *queueName = [MPPVisionTaskRunner uniqueDispatchQueueNameWithSuffix:kTaskName];
dispatch_queue_t callbackQueue = dispatch_queue_create(queueName, NULL);
packetsCallback = [=](absl::StatusOr<PacketMap> status_or_packets) {
if (!weakSelf) {
return;
}
if (![weakSelf.imageClassifierDelegate
if (![weakSelf.imageClassifierLiveStreamDelegate
respondsToSelector:@selector
(imageClassifier:
didFinishClassificationWithResult:timestampInMilliseconds:error:)]) {
@ -111,10 +110,10 @@ static NSString *const kTaskName = @"imageClassifier";
NSError *callbackError = nil;
if (![MPPCommonUtils checkCppError:status_or_packets.status() toError:&callbackError]) {
dispatch_async(callbackQueue, ^{
[weakSelf.imageClassifierDelegate imageClassifier:weakSelf
didFinishClassificationWithResult:nil
timestampInMilliseconds:Timestamp::Unset().Value()
error:callbackError];
[weakSelf.imageClassifierLiveStreamDelegate imageClassifier:weakSelf
didFinishClassificationWithResult:nil
timestampInMilliseconds:Timestamp::Unset().Value()
error:callbackError];
});
return;
}
@ -132,10 +131,10 @@ static NSString *const kTaskName = @"imageClassifier";
outputPacketMap[kImageOutStreamName.cppString].Timestamp().Value() /
kMicroSecondsPerMilliSecond;
dispatch_async(callbackQueue, ^{
[weakSelf.imageClassifierDelegate imageClassifier:weakSelf
didFinishClassificationWithResult:result
timestampInMilliseconds:timeStampInMilliseconds
error:callbackError];
[weakSelf.imageClassifierLiveStreamDelegate imageClassifier:weakSelf
didFinishClassificationWithResult:result
timestampInMilliseconds:timeStampInMilliseconds
error:callbackError];
});
};
}

15
mediapipe/tasks/ios/vision/image_classifier/sources/MPPImageClassifierOptions.h
View File

@ -27,11 +27,11 @@ NS_ASSUME_NONNULL_BEGIN
* results of asynchronous classification of images
* (i.e, when `runningMode = MPPRunningModeLiveStream`).
*
* The delegate of `MPPImageClassifier` must adopt `MPPImageClassifierDelegate` protocol.
* The delegate of `MPPImageClassifier` must adopt `MPPImageClassifierLiveStreamDelegate` protocol.
* The methods in this protocol are optional.
*/
NS_SWIFT_NAME(ImageClassifierDelegate)
@protocol MPPImageClassifierDelegate <NSObject>
NS_SWIFT_NAME(ImageClassifierLiveStreamDelegate)
@protocol MPPImageClassifierLiveStreamDelegate <NSObject>
@optional
/**
@ -75,12 +75,13 @@ NS_SWIFT_NAME(ImageClassifierOptions)
@property(nonatomic) MPPRunningMode runningMode;
/**
* An object that confirms to `MPPImageClassifierDelegate` protocol. This object must implement
* `objectDetector:didFinishDetectionWithResult:timestampInMilliseconds:error:`
* to receive the results of asynchronous classification on images (i.e, when `runningMode =
* An object that confirms to `MPPImageClassifierLiveStreamDelegate` protocol. This object must
* implement `objectDetector:didFinishDetectionWithResult:timestampInMilliseconds:error:` to receive
* the results of asynchronous classification on images (i.e, when `runningMode =
* MPPRunningModeLiveStream`).
*/
@property(nonatomic, weak, nullable) id<MPPImageClassifierDelegate> imageClassifierDelegate;
@property(nonatomic, weak, nullable) id<MPPImageClassifierLiveStreamDelegate>
imageClassifierLiveStreamDelegate;
/**
* The locale to use for display names specified through the TFLite Model Metadata, if any. Defaults

2
mediapipe/tasks/ios/vision/image_classifier/sources/MPPImageClassifierOptions.m
View File

@ -33,7 +33,7 @@
imageClassifierOptions.categoryDenylist = self.categoryDenylist;
imageClassifierOptions.categoryAllowlist = self.categoryAllowlist;
imageClassifierOptions.displayNamesLocale = self.displayNamesLocale;
imageClassifierOptions.imageClassifierDelegate = self.imageClassifierDelegate;
imageClassifierOptions.imageClassifierLiveStreamDelegate = self.imageClassifierLiveStreamDelegate;
return imageClassifierOptions;
}