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Added condition check for delegates

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This commit is contained in:
Prianka Liz Kariat 2023-05-02 08:45:08 +05:30
parent c9b00b07e0
commit 82a238a0c8
4 changed files with 63 additions and 45 deletions
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5
mediapipe/tasks/ios/vision/image_classifier/sources/MPPImageClassifier.h
View File

@ -188,13 +188,14 @@ NS_SWIFT_NAME(ImageClassifier)
NS_SWIFT_NAME(classifyAsync(image:timestampInMilliseconds:));
/**
* Sends live stream image data of type `MPPImage` to perform image classification, cropped to the
* Sends live stream image data of type ``MPPImage`` to perform image classification, cropped to the
* specified region of interest.. Rotation will be applied according to the `orientation` property
* 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
* `imageClassifier:didFinishClassificationWithResult:timestampInMilliseconds:error:` delegate method.
* `imageClassifier:didFinishClassificationWithResult:timestampInMilliseconds:error:` delegate
* method.
*
* It's required to provide a timestamp (in milliseconds) to indicate when the input image is sent
* to the image classifier. The input timestamps must be monotonically increasing.

10
mediapipe/tasks/ios/vision/image_classifier/sources/MPPImageClassifier.mm
View File

@ -88,10 +88,15 @@ static NSString *const kTaskGraphName =
packetsCallback = [=](absl::StatusOr<PacketMap> status_or_packets) {
NSError *callbackError = nil;
if (![MPPCommonUtils checkCppError:status_or_packets.status() toError:&callbackError]) {
if ([_imageClassifierDelegate
respondsToSelector:@selector
(imageClassifier:
didFinishClassificationWithResult:timestampInMilliseconds:error:)]) {
[_imageClassifierDelegate imageClassifier:self
didFinishClassificationWithResult:nil
timestampInMilliseconds:Timestamp::Unset().Value()
error:callbackError];
}
return;
}
@ -104,6 +109,10 @@ static NSString *const kTaskGraphName =
[MPPImageClassifierResult imageClassifierResultWithClassificationsPacket:
outputPacketMap[kClassificationsStreamName.cppString]];
if ([_imageClassifierDelegate
respondsToSelector:@selector
(imageClassifier:
didFinishClassificationWithResult:timestampInMilliseconds:error:)]) {
[_imageClassifierDelegate imageClassifier:self
didFinishClassificationWithResult:result
timestampInMilliseconds:outputPacketMap[kImageOutStreamName.cppString]
@ -111,6 +120,7 @@ static NSString *const kTaskGraphName =
.Value() /
kMicroSecondsPerMilliSecond
error:callbackError];
}
};
}

9
mediapipe/tasks/ios/vision/object_detector/sources/MPPObjectDetector.mm
View File

@ -84,10 +84,14 @@ static NSString *const kTaskGraphName = @"mediapipe.tasks.vision.ObjectDetectorG
packetsCallback = [=](absl::StatusOr<PacketMap> statusOrPackets) {
NSError *callbackError = nil;
if (![MPPCommonUtils checkCppError:statusOrPackets.status() toError:&callbackError]) {
if ([_objectDetectorDelegate
respondsToSelector:@selector
(objectDetector:didFinishDetectionWithResult:timestampInMilliseconds:error:)]) {
[_objectDetectorDelegate objectDetector:self
didFinishDetectionWithResult:nil
timestampInMilliseconds:Timestamp::Unset().Value()
error:callbackError];
}
return;
}
@ -99,7 +103,9 @@ static NSString *const kTaskGraphName = @"mediapipe.tasks.vision.ObjectDetectorG
MPPObjectDetectionResult *result = [MPPObjectDetectionResult
objectDetectionResultWithDetectionsPacket:statusOrPackets.value()[kDetectionsStreamName
.cppString]];
if ([_objectDetectorDelegate
respondsToSelector:@selector
(objectDetector:didFinishDetectionWithResult:timestampInMilliseconds:error:)]) {
[_objectDetectorDelegate objectDetector:self
didFinishDetectionWithResult:result
timestampInMilliseconds:outputPacketMap[kImageOutStreamName.cppString]
@ -121,6 +127,7 @@ static NSString *const kTaskGraphName = @"mediapipe.tasks.vision.ObjectDetectorG
return nil;
}
}
return self;
}