Updated iOS object detector to use delegates instead of callbacks for async calls
This commit is contained in:
parent
a21c08bf4d
commit
ab135190e5
|
@ -25,6 +25,8 @@ static NSDictionary *const kCatsAndDogsRotatedImage =
|
||||||
static NSString *const kExpectedErrorDomain = @"com.google.mediapipe.tasks";
|
static NSString *const kExpectedErrorDomain = @"com.google.mediapipe.tasks";
|
||||||
static const float pixelDifferenceTolerance = 10.0f;
|
static const float pixelDifferenceTolerance = 10.0f;
|
||||||
static const float scoreDifferenceTolerance = 0.02f;
|
static const float scoreDifferenceTolerance = 0.02f;
|
||||||
|
static NSString *const kLiveStreamTestsDictObjectDetectorKey = @"object_detector";
|
||||||
|
static NSString *const kLiveStreamTestsDictExpectationKey = @"expectation";
|
||||||
|
|
||||||
#define AssertEqualErrors(error, expectedError) \
|
#define AssertEqualErrors(error, expectedError) \
|
||||||
XCTAssertNotNil(error); \
|
XCTAssertNotNil(error); \
|
||||||
|
@ -58,7 +60,10 @@ static const float scoreDifferenceTolerance = 0.02f;
|
||||||
XCTAssertEqualWithAccuracy(boundingBox.size.height, expectedBoundingBox.size.height, \
|
XCTAssertEqualWithAccuracy(boundingBox.size.height, expectedBoundingBox.size.height, \
|
||||||
pixelDifferenceTolerance, @"index i = %d", idx);
|
pixelDifferenceTolerance, @"index i = %d", idx);
|
||||||
|
|
||||||
@interface MPPObjectDetectorTests : XCTestCase
|
@interface MPPObjectDetectorTests : XCTestCase <MPPObjectDetectorLiveStreamDelegate> {
|
||||||
|
NSDictionary *liveStreamSucceedsTestDict;
|
||||||
|
NSDictionary *outOfOrderTimestampTestDict;
|
||||||
|
}
|
||||||
@end
|
@end
|
||||||
|
|
||||||
@implementation MPPObjectDetectorTests
|
@implementation MPPObjectDetectorTests
|
||||||
|
@ -446,31 +451,28 @@ static const float scoreDifferenceTolerance = 0.02f;
|
||||||
|
|
||||||
#pragma mark Running Mode Tests
|
#pragma mark Running Mode Tests
|
||||||
|
|
||||||
- (void)testCreateObjectDetectorFailsWithResultListenerInNonLiveStreamMode {
|
- (void)testCreateObjectDetectorFailsWithDelegateInNonLiveStreamMode {
|
||||||
MPPRunningMode runningModesToTest[] = {MPPRunningModeImage, MPPRunningModeVideo};
|
MPPRunningMode runningModesToTest[] = {MPPRunningModeImage, MPPRunningModeVideo};
|
||||||
for (int i = 0; i < sizeof(runningModesToTest) / sizeof(runningModesToTest[0]); i++) {
|
for (int i = 0; i < sizeof(runningModesToTest) / sizeof(runningModesToTest[0]); i++) {
|
||||||
MPPObjectDetectorOptions *options = [self objectDetectorOptionsWithModelName:kModelName];
|
MPPObjectDetectorOptions *options = [self objectDetectorOptionsWithModelName:kModelName];
|
||||||
|
|
||||||
options.runningMode = runningModesToTest[i];
|
options.runningMode = runningModesToTest[i];
|
||||||
options.completion =
|
options.objectDetectorLiveStreamDelegate = self;
|
||||||
^(MPPObjectDetectionResult *result, NSInteger timestampInMilliseconds, NSError *error) {
|
|
||||||
};
|
|
||||||
|
|
||||||
[self
|
[self
|
||||||
assertCreateObjectDetectorWithOptions:options
|
assertCreateObjectDetectorWithOptions:options
|
||||||
failsWithExpectedError:
|
failsWithExpectedError:
|
||||||
[NSError
|
[NSError errorWithDomain:kExpectedErrorDomain
|
||||||
errorWithDomain:kExpectedErrorDomain
|
code:MPPTasksErrorCodeInvalidArgumentError
|
||||||
code:MPPTasksErrorCodeInvalidArgumentError
|
userInfo:@{
|
||||||
userInfo:@{
|
NSLocalizedDescriptionKey :
|
||||||
NSLocalizedDescriptionKey :
|
@"The vision task is in image or video mode. The "
|
||||||
@"The vision task is in image or video mode, a "
|
@"delegate must not be set in the task's options."
|
||||||
@"user-defined result callback should not be provided."
|
}]];
|
||||||
}]];
|
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
- (void)testCreateObjectDetectorFailsWithMissingResultListenerInLiveStreamMode {
|
- (void)testCreateObjectDetectorFailsWithMissingDelegateInLiveStreamMode {
|
||||||
MPPObjectDetectorOptions *options = [self objectDetectorOptionsWithModelName:kModelName];
|
MPPObjectDetectorOptions *options = [self objectDetectorOptionsWithModelName:kModelName];
|
||||||
|
|
||||||
options.runningMode = MPPRunningModeLiveStream;
|
options.runningMode = MPPRunningModeLiveStream;
|
||||||
|
@ -481,8 +483,11 @@ static const float scoreDifferenceTolerance = 0.02f;
|
||||||
code:MPPTasksErrorCodeInvalidArgumentError
|
code:MPPTasksErrorCodeInvalidArgumentError
|
||||||
userInfo:@{
|
userInfo:@{
|
||||||
NSLocalizedDescriptionKey :
|
NSLocalizedDescriptionKey :
|
||||||
@"The vision task is in live stream mode, a "
|
@"The vision task is in live stream mode. An "
|
||||||
@"user-defined result callback must be provided."
|
@"object must be set as the "
|
||||||
|
@"delegate of the task in its options to ensure "
|
||||||
|
@"asynchronous delivery of "
|
||||||
|
@"results."
|
||||||
}]];
|
}]];
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@ -563,10 +568,7 @@ static const float scoreDifferenceTolerance = 0.02f;
|
||||||
MPPObjectDetectorOptions *options = [self objectDetectorOptionsWithModelName:kModelName];
|
MPPObjectDetectorOptions *options = [self objectDetectorOptionsWithModelName:kModelName];
|
||||||
|
|
||||||
options.runningMode = MPPRunningModeLiveStream;
|
options.runningMode = MPPRunningModeLiveStream;
|
||||||
options.completion =
|
options.objectDetectorLiveStreamDelegate = self;
|
||||||
^(MPPObjectDetectionResult *result, NSInteger timestampInMilliseconds, NSError *error) {
|
|
||||||
|
|
||||||
};
|
|
||||||
|
|
||||||
MPPObjectDetector *objectDetector = [self objectDetectorWithOptionsSucceeds:options];
|
MPPObjectDetector *objectDetector = [self objectDetectorWithOptionsSucceeds:options];
|
||||||
|
|
||||||
|
@ -631,23 +633,17 @@ static const float scoreDifferenceTolerance = 0.02f;
|
||||||
options.maxResults = maxResults;
|
options.maxResults = maxResults;
|
||||||
|
|
||||||
options.runningMode = MPPRunningModeLiveStream;
|
options.runningMode = MPPRunningModeLiveStream;
|
||||||
|
options.objectDetectorLiveStreamDelegate = self;
|
||||||
|
|
||||||
XCTestExpectation *expectation = [[XCTestExpectation alloc]
|
XCTestExpectation *expectation = [[XCTestExpectation alloc]
|
||||||
initWithDescription:@"detectWithOutOfOrderTimestampsAndLiveStream"];
|
initWithDescription:@"detectWithOutOfOrderTimestampsAndLiveStream"];
|
||||||
expectation.expectedFulfillmentCount = 1;
|
expectation.expectedFulfillmentCount = 1;
|
||||||
|
|
||||||
options.completion =
|
|
||||||
^(MPPObjectDetectionResult *result, NSInteger timestampInMilliseconds, NSError *error) {
|
|
||||||
[self assertObjectDetectionResult:result
|
|
||||||
isEqualToExpectedResult:
|
|
||||||
[MPPObjectDetectorTests
|
|
||||||
expectedDetectionResultForCatsAndDogsImageWithTimestampInMilliseconds:
|
|
||||||
timestampInMilliseconds]
|
|
||||||
expectedDetectionsCount:maxResults];
|
|
||||||
[expectation fulfill];
|
|
||||||
};
|
|
||||||
|
|
||||||
MPPObjectDetector *objectDetector = [self objectDetectorWithOptionsSucceeds:options];
|
MPPObjectDetector *objectDetector = [self objectDetectorWithOptionsSucceeds:options];
|
||||||
|
liveStreamSucceedsTestDict = @{
|
||||||
|
kLiveStreamTestsDictObjectDetectorKey : objectDetector,
|
||||||
|
kLiveStreamTestsDictExpectationKey : expectation
|
||||||
|
};
|
||||||
|
|
||||||
MPPImage *image = [self imageWithFileInfo:kCatsAndDogsImage];
|
MPPImage *image = [self imageWithFileInfo:kCatsAndDogsImage];
|
||||||
|
|
||||||
|
@ -693,19 +689,15 @@ static const float scoreDifferenceTolerance = 0.02f;
|
||||||
expectation.expectedFulfillmentCount = iterationCount + 1;
|
expectation.expectedFulfillmentCount = iterationCount + 1;
|
||||||
expectation.inverted = YES;
|
expectation.inverted = YES;
|
||||||
|
|
||||||
options.completion =
|
options.objectDetectorLiveStreamDelegate = self;
|
||||||
^(MPPObjectDetectionResult *result, NSInteger timestampInMilliseconds, NSError *error) {
|
|
||||||
[self assertObjectDetectionResult:result
|
|
||||||
isEqualToExpectedResult:
|
|
||||||
[MPPObjectDetectorTests
|
|
||||||
expectedDetectionResultForCatsAndDogsImageWithTimestampInMilliseconds:
|
|
||||||
timestampInMilliseconds]
|
|
||||||
expectedDetectionsCount:maxResults];
|
|
||||||
[expectation fulfill];
|
|
||||||
};
|
|
||||||
|
|
||||||
MPPObjectDetector *objectDetector = [self objectDetectorWithOptionsSucceeds:options];
|
MPPObjectDetector *objectDetector = [self objectDetectorWithOptionsSucceeds:options];
|
||||||
|
|
||||||
|
liveStreamSucceedsTestDict = @{
|
||||||
|
kLiveStreamTestsDictObjectDetectorKey : objectDetector,
|
||||||
|
kLiveStreamTestsDictExpectationKey : expectation
|
||||||
|
};
|
||||||
|
|
||||||
// TODO: Mimic initialization from CMSampleBuffer as live stream mode is most likely to be used
|
// TODO: Mimic initialization from CMSampleBuffer as live stream mode is most likely to be used
|
||||||
// with the iOS camera. AVCaptureVideoDataOutput sample buffer delegates provide frames of type
|
// with the iOS camera. AVCaptureVideoDataOutput sample buffer delegates provide frames of type
|
||||||
// `CMSampleBuffer`.
|
// `CMSampleBuffer`.
|
||||||
|
@ -718,4 +710,24 @@ static const float scoreDifferenceTolerance = 0.02f;
|
||||||
[self waitForExpectations:@[ expectation ] timeout:0.5];
|
[self waitForExpectations:@[ expectation ] timeout:0.5];
|
||||||
}
|
}
|
||||||
|
|
||||||
|
#pragma mark MPPObjectDetectorLiveStreamDelegate Methods
|
||||||
|
- (void)objectDetector:(MPPObjectDetector *)objectDetector
|
||||||
|
didFinishDetectionWithResult:(MPPObjectDetectionResult *)objectDetectionResult
|
||||||
|
timestampInMilliseconds:(NSInteger)timestampInMilliseconds
|
||||||
|
error:(NSError *)error {
|
||||||
|
NSInteger maxResults = 4;
|
||||||
|
[self assertObjectDetectionResult:objectDetectionResult
|
||||||
|
isEqualToExpectedResult:
|
||||||
|
[MPPObjectDetectorTests
|
||||||
|
expectedDetectionResultForCatsAndDogsImageWithTimestampInMilliseconds:
|
||||||
|
timestampInMilliseconds]
|
||||||
|
expectedDetectionsCount:maxResults];
|
||||||
|
|
||||||
|
if (objectDetector == outOfOrderTimestampTestDict[kLiveStreamTestsDictObjectDetectorKey]) {
|
||||||
|
[outOfOrderTimestampTestDict[kLiveStreamTestsDictExpectationKey] fulfill];
|
||||||
|
} else if (objectDetector == liveStreamSucceedsTestDict[kLiveStreamTestsDictObjectDetectorKey]) {
|
||||||
|
[liveStreamSucceedsTestDict[kLiveStreamTestsDictExpectationKey] fulfill];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
@end
|
@end
|
||||||
|
|
|
@ -137,6 +137,9 @@ NS_SWIFT_NAME(ObjectDetector)
|
||||||
* the provided `MPPImage`. Only use this method when the `MPPObjectDetector` is created with
|
* the provided `MPPImage`. Only use this method when the `MPPObjectDetector` is created with
|
||||||
* `MPPRunningModeLiveStream`. Results are provided asynchronously via the `completion` callback
|
* `MPPRunningModeLiveStream`. Results are provided asynchronously via the `completion` callback
|
||||||
* provided in the `MPPObjectDetectorOptions`.
|
* provided in the `MPPObjectDetectorOptions`.
|
||||||
|
* The object which needs to be continuously notified of the available results of object
|
||||||
|
* detection must confirm to `MPPObjectDetectorLiveStreamDelegate` protocol and implement the
|
||||||
|
* `objectDetector:didFinishDetectionWithResult:timestampInMilliseconds:error:` delegate method.
|
||||||
*
|
*
|
||||||
* It's required to provide a timestamp (in milliseconds) to indicate when the input image is sent
|
* It's required to provide a timestamp (in milliseconds) to indicate when the input image is sent
|
||||||
* to the object detector. The input timestamps must be monotonically increasing.
|
* to the object detector. The input timestamps must be monotonically increasing.
|
||||||
|
|
|
@ -37,8 +37,8 @@ static NSString *const kImageOutStreamName = @"image_out";
|
||||||
static NSString *const kImageTag = @"IMAGE";
|
static NSString *const kImageTag = @"IMAGE";
|
||||||
static NSString *const kNormRectStreamName = @"norm_rect_in";
|
static NSString *const kNormRectStreamName = @"norm_rect_in";
|
||||||
static NSString *const kNormRectTag = @"NORM_RECT";
|
static NSString *const kNormRectTag = @"NORM_RECT";
|
||||||
|
|
||||||
static NSString *const kTaskGraphName = @"mediapipe.tasks.vision.ObjectDetectorGraph";
|
static NSString *const kTaskGraphName = @"mediapipe.tasks.vision.ObjectDetectorGraph";
|
||||||
|
static NSString *const kTaskName = @"objectDetector";
|
||||||
|
|
||||||
#define InputPacketMap(imagePacket, normalizedRectPacket) \
|
#define InputPacketMap(imagePacket, normalizedRectPacket) \
|
||||||
{ \
|
{ \
|
||||||
|
@ -51,6 +51,7 @@ static NSString *const kTaskGraphName = @"mediapipe.tasks.vision.ObjectDetectorG
|
||||||
/** iOS Vision Task Runner */
|
/** iOS Vision Task Runner */
|
||||||
MPPVisionTaskRunner *_visionTaskRunner;
|
MPPVisionTaskRunner *_visionTaskRunner;
|
||||||
}
|
}
|
||||||
|
@property(nonatomic, weak) id<MPPObjectDetectorLiveStreamDelegate> objectDetectorLiveStreamDelegate;
|
||||||
@end
|
@end
|
||||||
|
|
||||||
@implementation MPPObjectDetector
|
@implementation MPPObjectDetector
|
||||||
|
@ -78,11 +79,32 @@ static NSString *const kTaskGraphName = @"mediapipe.tasks.vision.ObjectDetectorG
|
||||||
|
|
||||||
PacketsCallback packetsCallback = nullptr;
|
PacketsCallback packetsCallback = nullptr;
|
||||||
|
|
||||||
if (options.completion) {
|
if (options.objectDetectorLiveStreamDelegate) {
|
||||||
|
_objectDetectorLiveStreamDelegate = options.objectDetectorLiveStreamDelegate;
|
||||||
|
|
||||||
|
// Capturing `self` as weak in order to avoid `self` being kept in memory
|
||||||
|
// and cause a retain cycle, after self is set to `nil`.
|
||||||
|
MPPObjectDetector *__weak weakSelf = self;
|
||||||
|
dispatch_queue_t callbackQueue =
|
||||||
|
dispatch_queue_create([MPPVisionTaskRunner uniqueDispatchQueueNameWithSuffix:kTaskName], NULL);
|
||||||
packetsCallback = [=](absl::StatusOr<PacketMap> statusOrPackets) {
|
packetsCallback = [=](absl::StatusOr<PacketMap> statusOrPackets) {
|
||||||
|
if (!weakSelf) {
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
if (![weakSelf.objectDetectorLiveStreamDelegate
|
||||||
|
respondsToSelector:@selector
|
||||||
|
(objectDetector:didFinishDetectionWithResult:timestampInMilliseconds:error:)]) {
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
NSError *callbackError = nil;
|
NSError *callbackError = nil;
|
||||||
if (![MPPCommonUtils checkCppError:statusOrPackets.status() toError:&callbackError]) {
|
if (![MPPCommonUtils checkCppError:statusOrPackets.status() toError:&callbackError]) {
|
||||||
options.completion(nil, Timestamp::Unset().Value(), callbackError);
|
dispatch_async(callbackQueue, ^{
|
||||||
|
[weakSelf.objectDetectorLiveStreamDelegate objectDetector:weakSelf
|
||||||
|
didFinishDetectionWithResult:nil
|
||||||
|
timestampInMilliseconds:Timestamp::Unset().Value()
|
||||||
|
error:callbackError];
|
||||||
|
});
|
||||||
return;
|
return;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@ -95,10 +117,15 @@ static NSString *const kTaskGraphName = @"mediapipe.tasks.vision.ObjectDetectorG
|
||||||
objectDetectionResultWithDetectionsPacket:statusOrPackets.value()[kDetectionsStreamName
|
objectDetectionResultWithDetectionsPacket:statusOrPackets.value()[kDetectionsStreamName
|
||||||
.cppString]];
|
.cppString]];
|
||||||
|
|
||||||
options.completion(result,
|
NSInteger timeStampInMilliseconds =
|
||||||
outputPacketMap[kImageOutStreamName.cppString].Timestamp().Value() /
|
outputPacketMap[kImageOutStreamName.cppString].Timestamp().Value() /
|
||||||
kMicroSecondsPerMilliSecond,
|
kMicroSecondsPerMilliSecond;
|
||||||
callbackError);
|
dispatch_async(callbackQueue, ^{
|
||||||
|
[weakSelf.objectDetectorLiveStreamDelegate objectDetector:weakSelf
|
||||||
|
didFinishDetectionWithResult:result
|
||||||
|
timestampInMilliseconds:timeStampInMilliseconds
|
||||||
|
error:callbackError];
|
||||||
|
});
|
||||||
};
|
};
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@ -112,6 +139,7 @@ static NSString *const kTaskGraphName = @"mediapipe.tasks.vision.ObjectDetectorG
|
||||||
return nil;
|
return nil;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
return self;
|
return self;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@ -224,5 +252,4 @@ static NSString *const kTaskGraphName = @"mediapipe.tasks.vision.ObjectDetectorG
|
||||||
return [_visionTaskRunner processLiveStreamPacketMap:inputPacketMap.value() error:error];
|
return [_visionTaskRunner processLiveStreamPacketMap:inputPacketMap.value() error:error];
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
@end
|
@end
|
||||||
|
|
|
@ -20,19 +20,70 @@
|
||||||
|
|
||||||
NS_ASSUME_NONNULL_BEGIN
|
NS_ASSUME_NONNULL_BEGIN
|
||||||
|
|
||||||
|
@class MPPObjectDetector;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* This protocol defines an interface for the delegates of `MPPObjectDetector` object to receive
|
||||||
|
* results of performing asynchronous object detection on images
|
||||||
|
* (i.e, when `runningMode` = `MPPRunningModeLiveStream`).
|
||||||
|
*
|
||||||
|
* The delegate of `MPPObjectDetector` must adopt `MPPObjectDetectorLiveStreamDelegate` protocol.
|
||||||
|
* The methods in this protocol are optional.
|
||||||
|
*/
|
||||||
|
NS_SWIFT_NAME(ObjectDetectorLiveStreamDelegate)
|
||||||
|
@protocol MPPObjectDetectorLiveStreamDelegate <NSObject>
|
||||||
|
|
||||||
|
@optional
|
||||||
|
|
||||||
|
/**
|
||||||
|
* This method notifies a delegate that the results of asynchronous object detection of
|
||||||
|
* an image submitted to the `MPPObjectDetector` is available.
|
||||||
|
*
|
||||||
|
* This method is called on a private serial dispatch queue created by the `MPPObjectDetector`
|
||||||
|
* for performing the asynchronous delegates calls.
|
||||||
|
*
|
||||||
|
* @param objectDetector The object detector which performed the object detection.
|
||||||
|
* This is useful to test equality when there are multiple instances of `MPPObjectDetector`.
|
||||||
|
* @param result The `MPPObjectDetectionResult` object that contains a list of detections, each
|
||||||
|
* detection has a bounding box that is expressed in the unrotated input frame of reference
|
||||||
|
* coordinates system, i.e. in `[0,image_width) x [0,image_height)`, which are the dimensions of the
|
||||||
|
* underlying image data.
|
||||||
|
* @param timestampInMilliseconds The timestamp (in milliseconds) which indicates when the input
|
||||||
|
* image was sent to the object detector.
|
||||||
|
* @param error An optional error parameter populated when there is an error in performing object
|
||||||
|
* detection on the input live stream image data.
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
- (void)objectDetector:(MPPObjectDetector *)objectDetector
|
||||||
|
didFinishDetectionWithResult:(nullable MPPObjectDetectionResult *)result
|
||||||
|
timestampInMilliseconds:(NSInteger)timestampInMilliseconds
|
||||||
|
error:(nullable NSError *)error
|
||||||
|
NS_SWIFT_NAME(objectDetector(_:didFinishDetection:timestampInMilliseconds:error:));
|
||||||
|
@end
|
||||||
|
|
||||||
/** Options for setting up a `MPPObjectDetector`. */
|
/** Options for setting up a `MPPObjectDetector`. */
|
||||||
NS_SWIFT_NAME(ObjectDetectorOptions)
|
NS_SWIFT_NAME(ObjectDetectorOptions)
|
||||||
@interface MPPObjectDetectorOptions : MPPTaskOptions <NSCopying>
|
@interface MPPObjectDetectorOptions : MPPTaskOptions <NSCopying>
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Running mode of the object detector task. Defaults to `MPPRunningModeImage`.
|
||||||
|
* `MPPImageClassifier` can be created with one of the following running modes:
|
||||||
|
* 1. `MPPRunningModeImage`: The mode for performing object detection on single image inputs.
|
||||||
|
* 2. `MPPRunningModeVideo`: The mode for performing object detection on the decoded frames of a
|
||||||
|
* video.
|
||||||
|
* 3. `MPPRunningModeLiveStream`: The mode for performing object detection on a live stream of
|
||||||
|
* input data, such as from the camera.
|
||||||
|
*/
|
||||||
@property(nonatomic) MPPRunningMode runningMode;
|
@property(nonatomic) MPPRunningMode runningMode;
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* The user-defined result callback for processing live stream data. The result callback should only
|
* An object that confirms to `MPPObjectDetectorLiveStreamDelegate` protocol. This object must
|
||||||
* be specified when the running mode is set to the live stream mode.
|
* implement `objectDetector:didFinishDetectionWithResult:timestampInMilliseconds:error:` to receive
|
||||||
* TODO: Add parameter `MPPImage` in the callback.
|
* the results of performing asynchronous object detection on images (i.e, when `runningMode` =
|
||||||
|
* `MPPRunningModeLiveStream`).
|
||||||
*/
|
*/
|
||||||
@property(nonatomic, copy) void (^completion)
|
@property(nonatomic, weak, nullable) id<MPPObjectDetectorLiveStreamDelegate>
|
||||||
(MPPObjectDetectionResult *__nullable result, NSInteger timestampMs, NSError *error);
|
objectDetectorLiveStreamDelegate;
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* The locale to use for display names specified through the TFLite Model Metadata, if any. Defaults
|
* The locale to use for display names specified through the TFLite Model Metadata, if any. Defaults
|
||||||
|
|
|
@ -33,7 +33,7 @@
|
||||||
objectDetectorOptions.categoryDenylist = self.categoryDenylist;
|
objectDetectorOptions.categoryDenylist = self.categoryDenylist;
|
||||||
objectDetectorOptions.categoryAllowlist = self.categoryAllowlist;
|
objectDetectorOptions.categoryAllowlist = self.categoryAllowlist;
|
||||||
objectDetectorOptions.displayNamesLocale = self.displayNamesLocale;
|
objectDetectorOptions.displayNamesLocale = self.displayNamesLocale;
|
||||||
objectDetectorOptions.completion = self.completion;
|
objectDetectorOptions.objectDetectorLiveStreamDelegate = self.objectDetectorLiveStreamDelegate;
|
||||||
|
|
||||||
return objectDetectorOptions;
|
return objectDetectorOptions;
|
||||||
}
|
}
|
||||||
|
|
Loading…
Reference in New Issue
Block a user