Updated iOS gesture recognizer to use refactored vision task runner
This commit is contained in:
Prianka Liz Kariat
parent
fe9c7a47e9
commit
020ca5eb77
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@ -58,7 +58,7 @@ objc_library(
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"//mediapipe/tasks/ios/core:MPPTaskInfo",
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"//mediapipe/tasks/ios/vision/core:MPPImage",
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"//mediapipe/tasks/ios/vision/core:MPPVisionPacketCreator",
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"//mediapipe/tasks/ios/vision/core:MPPVisionTaskRunner",
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"//mediapipe/tasks/ios/vision/core:MPPVisionTaskRunnerRefactored",
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"//mediapipe/tasks/ios/vision/gesture_recognizer/utils:MPPGestureRecognizerOptionsHelpers",
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"//mediapipe/tasks/ios/vision/gesture_recognizer/utils:MPPGestureRecognizerResultHelpers",
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],
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@ -18,7 +18,7 @@
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#import "mediapipe/tasks/ios/common/utils/sources/NSString+Helpers.h"
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#import "mediapipe/tasks/ios/core/sources/MPPTaskInfo.h"
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#import "mediapipe/tasks/ios/vision/core/sources/MPPVisionPacketCreator.h"
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#import "mediapipe/tasks/ios/vision/core/sources/MPPVisionTaskRunner.h"
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#import "mediapipe/tasks/ios/vision/core/sources/MPPVisionTaskRunnerRefactored.h"
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#import "mediapipe/tasks/ios/vision/gesture_recognizer/utils/sources/MPPGestureRecognizerOptions+Helpers.h"
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#import "mediapipe/tasks/ios/vision/gesture_recognizer/utils/sources/MPPGestureRecognizerResult+Helpers.h"
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@ -54,6 +54,19 @@ static NSString *const kTaskName = @"gestureRecognizer";
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} \
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}
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#define GestureRecognizerResultWithOutputPacketMap(outputPacketMap) \
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{ \
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[MPPGestureRecognizerResult \
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gestureRecognizerResultWithHandGesturesPacket:outputPacketMap[kHandGesturesOutStreamName \
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.cppString] \
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handednessPacket:outputPacketMap[kHandednessOutStreamName \
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.cppString] \
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handLandmarksPacket:outputPacketMap[kLandmarksOutStreamName \
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.cppString] \
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worldLandmarksPacket:outputPacketMap[kWorldLandmarksOutStreamName \
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.cppString]] \
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}
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@interface MPPGestureRecognizer () {
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/** iOS Vision Task Runner */
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MPPVisionTaskRunner *_visionTaskRunner;
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@ -65,56 +78,6 @@ static NSString *const kTaskName = @"gestureRecognizer";
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@implementation MPPGestureRecognizer
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- (nullable MPPGestureRecognizerResult *)gestureRecognizerResultWithOutputPacketMap:
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(PacketMap &)outputPacketMap {
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return [MPPGestureRecognizerResult
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gestureRecognizerResultWithHandGesturesPacket:outputPacketMap[kHandGesturesOutStreamName
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.cppString]
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handednessPacket:outputPacketMap[kHandednessOutStreamName
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.cppString]
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handLandmarksPacket:outputPacketMap[kLandmarksOutStreamName
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.cppString]
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worldLandmarksPacket:outputPacketMap[kWorldLandmarksOutStreamName
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.cppString]];
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}
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- (void)processLiveStreamResult:(absl::StatusOr<PacketMap>)liveStreamResult {
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if (![self.gestureRecognizerLiveStreamDelegate
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respondsToSelector:@selector(gestureRecognizer:
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didFinishRecognitionWithResult:timestampInMilliseconds:error:)]) {
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return;
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}
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NSError *callbackError = nil;
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if (![MPPCommonUtils checkCppError:liveStreamResult.status() toError:&callbackError]) {
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dispatch_async(_callbackQueue, ^{
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[self.gestureRecognizerLiveStreamDelegate gestureRecognizer:self
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didFinishRecognitionWithResult:nil
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timestampInMilliseconds:Timestamp::Unset().Value()
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error:callbackError];
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});
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return;
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}
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PacketMap &outputPacketMap = liveStreamResult.value();
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if (outputPacketMap[kImageOutStreamName.cppString].IsEmpty()) {
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return;
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}
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MPPGestureRecognizerResult *result =
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[self gestureRecognizerResultWithOutputPacketMap:outputPacketMap];
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NSInteger timeStampInMilliseconds =
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outputPacketMap[kImageOutStreamName.cppString].Timestamp().Value() /
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kMicroSecondsPerMilliSecond;
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dispatch_async(_callbackQueue, ^{
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[self.gestureRecognizerLiveStreamDelegate gestureRecognizer:self
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didFinishRecognitionWithResult:result
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timestampInMilliseconds:timeStampInMilliseconds
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error:callbackError];
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});
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}
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- (instancetype)initWithOptions:(MPPGestureRecognizerOptions *)options error:(NSError **)error {
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self = [super init];
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if (self) {
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@ -161,10 +124,12 @@ static NSString *const kTaskName = @"gestureRecognizer";
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};
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}
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_visionTaskRunner =
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[[MPPVisionTaskRunner alloc] initWithCalculatorGraphConfig:[taskInfo generateGraphConfig]
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_visionTaskRunner = [[MPPVisionTaskRunner alloc] initWithTaskInfo:taskInfo
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runningMode:options.runningMode
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roiAllowed:NO
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packetsCallback:std::move(packetsCallback)
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imageInputStreamName:kImageInStreamName
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normRectInputStreamName:kNormRectInStreamName
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error:error];
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if (!_visionTaskRunner) {
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return nil;
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@ -181,93 +146,76 @@ static NSString *const kTaskName = @"gestureRecognizer";
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return [self initWithOptions:options error:error];
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}
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- (nullable MPPGestureRecognizerResult *)gestureRecognizerResultWithOptionalOutputPacketMap:
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(std::optional<PacketMap> &)outputPacketMap {
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if (!outputPacketMap.has_value()) {
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return nil;
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}
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MPPGestureRecognizerResult *result =
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[self gestureRecognizerResultWithOutputPacketMap:outputPacketMap.value()];
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return result;
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}
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- (nullable MPPGestureRecognizerResult *)recognizeImage:(MPPImage *)image error:(NSError **)error {
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std::optional<NormalizedRect> rect =
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[_visionTaskRunner normalizedRectWithImageOrientation:image.orientation
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imageSize:CGSizeMake(image.width, image.height)
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error:error];
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if (!rect.has_value()) {
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return nil;
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}
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std::optional<PacketMap> outputPacketMap = [_visionTaskRunner processImage:image error:error];
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Packet imagePacket = [MPPVisionPacketCreator createPacketWithMPPImage:image error:error];
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if (imagePacket.IsEmpty()) {
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return nil;
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}
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Packet normalizedRectPacket =
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[MPPVisionPacketCreator createPacketWithNormalizedRect:rect.value()];
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PacketMap inputPacketMap = InputPacketMap(imagePacket, normalizedRectPacket);
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std::optional<PacketMap> outputPacketMap = [_visionTaskRunner processImagePacketMap:inputPacketMap
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error:error];
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return [self gestureRecognizerResultWithOptionalOutputPacketMap:outputPacketMap];
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}
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- (std::optional<PacketMap>)inputPacketMapWithMPPImage:(MPPImage *)image
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timestampInMilliseconds:(NSInteger)timestampInMilliseconds
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error:(NSError **)error {
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std::optional<NormalizedRect> rect =
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[_visionTaskRunner normalizedRectWithImageOrientation:image.orientation
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imageSize:CGSizeMake(image.width, image.height)
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error:error];
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if (!rect.has_value()) {
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return std::nullopt;
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}
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Packet imagePacket = [MPPVisionPacketCreator createPacketWithMPPImage:image
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timestampInMilliseconds:timestampInMilliseconds
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error:error];
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if (imagePacket.IsEmpty()) {
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return std::nullopt;
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}
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Packet normalizedRectPacket =
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[MPPVisionPacketCreator createPacketWithNormalizedRect:rect.value()
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timestampInMilliseconds:timestampInMilliseconds];
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PacketMap inputPacketMap = InputPacketMap(imagePacket, normalizedRectPacket);
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return inputPacketMap;
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return [MPPGestureRecognizer gestureRecognizerResultWithOptionalOutputPacketMap:outputPacketMap];
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}
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- (nullable MPPGestureRecognizerResult *)recognizeVideoFrame:(MPPImage *)image
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timestampInMilliseconds:(NSInteger)timestampInMilliseconds
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error:(NSError **)error {
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std::optional<PacketMap> inputPacketMap = [self inputPacketMapWithMPPImage:image
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std::optional<PacketMap> outputPacketMap =
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[_visionTaskRunner processVideoFrame:image
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timestampInMilliseconds:timestampInMilliseconds
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error:error];
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if (!inputPacketMap.has_value()) {
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return nil;
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}
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std::optional<PacketMap> outputPacketMap =
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[_visionTaskRunner processVideoFramePacketMap:inputPacketMap.value() error:error];
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return [self gestureRecognizerResultWithOptionalOutputPacketMap:outputPacketMap];
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return [MPPGestureRecognizer gestureRecognizerResultWithOptionalOutputPacketMap:outputPacketMap];
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}
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- (BOOL)recognizeAsyncImage:(MPPImage *)image
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timestampInMilliseconds:(NSInteger)timestampInMilliseconds
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error:(NSError **)error {
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std::optional<PacketMap> inputPacketMap = [self inputPacketMapWithMPPImage:image
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return [_visionTaskRunner processLiveStreamImage:image
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timestampInMilliseconds:timestampInMilliseconds
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error:error];
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if (!inputPacketMap.has_value()) {
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return NO;
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}
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#pragma mark - Private
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- (void)processLiveStreamResult:(absl::StatusOr<PacketMap>)liveStreamResult {
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if (![self.gestureRecognizerLiveStreamDelegate
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respondsToSelector:@selector(gestureRecognizer:
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didFinishRecognitionWithResult:timestampInMilliseconds:error:)]) {
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return;
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}
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return [_visionTaskRunner processLiveStreamPacketMap:inputPacketMap.value() error:error];
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NSError *callbackError = nil;
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if (![MPPCommonUtils checkCppError:liveStreamResult.status() toError:&callbackError]) {
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dispatch_async(_callbackQueue, ^{
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[self.gestureRecognizerLiveStreamDelegate gestureRecognizer:self
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didFinishRecognitionWithResult:nil
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timestampInMilliseconds:Timestamp::Unset().Value()
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error:callbackError];
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});
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return;
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}
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PacketMap &outputPacketMap = liveStreamResult.value();
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if (outputPacketMap[kImageOutStreamName.cppString].IsEmpty()) {
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return;
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}
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MPPGestureRecognizerResult *result = GestureRecognizerResultWithOutputPacketMap(outputPacketMap);
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NSInteger timeStampInMilliseconds =
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outputPacketMap[kImageOutStreamName.cppString].Timestamp().Value() /
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kMicroSecondsPerMilliSecond;
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dispatch_async(_callbackQueue, ^{
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[self.gestureRecognizerLiveStreamDelegate gestureRecognizer:self
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didFinishRecognitionWithResult:result
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timestampInMilliseconds:timeStampInMilliseconds
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error:callbackError];
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});
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}
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+ (nullable MPPGestureRecognizerResult *)gestureRecognizerResultWithOptionalOutputPacketMap:
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(std::optional<PacketMap> &)outputPacketMap {
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if (!outputPacketMap.has_value()) {
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return nil;
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}
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return GestureRecognizerResultWithOutputPacketMap(outputPacketMap.value());
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}
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@end
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