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Updated iOS hand landmarker to use refactored vision task runner

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This commit is contained in:
Prianka Liz Kariat 2023-09-01 14:07:25 +05:30
parent 020ca5eb77
commit 188321ace4
2 changed files with 77 additions and 124 deletions
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2
mediapipe/tasks/ios/vision/hand_landmarker/BUILD
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@ -66,7 +66,7 @@ objc_library(
"//mediapipe/tasks/ios/core:MPPTaskInfo",
"//mediapipe/tasks/ios/vision/core:MPPImage",
"//mediapipe/tasks/ios/vision/core:MPPVisionPacketCreator",
"//mediapipe/tasks/ios/vision/core:MPPVisionTaskRunner",
"//mediapipe/tasks/ios/vision/core:MPPVisionTaskRunnerRefactored",
"//mediapipe/tasks/ios/vision/hand_landmarker/utils:MPPHandLandmarkerOptionsHelpers",
"//mediapipe/tasks/ios/vision/hand_landmarker/utils:MPPHandLandmarkerResultHelpers",
],

187
mediapipe/tasks/ios/vision/hand_landmarker/sources/MPPHandLandmarker.mm
View File

@ -18,7 +18,7 @@
#import "mediapipe/tasks/ios/common/utils/sources/NSString+Helpers.h"
#import "mediapipe/tasks/ios/core/sources/MPPTaskInfo.h"
#import "mediapipe/tasks/ios/vision/core/sources/MPPVisionPacketCreator.h"
#import "mediapipe/tasks/ios/vision/core/sources/MPPVisionTaskRunner.h"
#import "mediapipe/tasks/ios/vision/core/sources/MPPVisionTaskRunnerRefactored.h"
#import "mediapipe/tasks/ios/vision/hand_landmarker/sources/MPPHandLandmarksConnections.h"
#import "mediapipe/tasks/ios/vision/hand_landmarker/utils/sources/MPPHandLandmarkerOptions+Helpers.h"
#import "mediapipe/tasks/ios/vision/hand_landmarker/utils/sources/MPPHandLandmarkerResult+Helpers.h"
@ -53,6 +53,16 @@ static NSString *const kTaskName = @"handLandmarker";
} \
}
#define HandLandmarkerResultWithOutputPacketMap(outputPacketMap) \
{ \
[MPPHandLandmarkerResult \
handLandmarkerResultWithLandmarksPacket:outputPacketMap[kLandmarksOutStreamName.cppString] \
worldLandmarksPacket:outputPacketMap[kWorldLandmarksOutStreamName \
.cppString] \
handednessPacket:outputPacketMap[kHandednessOutStreamName \
.cppString]] \
}
@interface MPPHandLandmarker () {
/** iOS Vision Task Runner */
MPPVisionTaskRunner *_visionTaskRunner;
@ -63,50 +73,7 @@ static NSString *const kTaskName = @"handLandmarker";
@implementation MPPHandLandmarker
- (nullable MPPHandLandmarkerResult *)handLandmarkerResultWithOutputPacketMap:
(PacketMap &)outputPacketMap {
return [MPPHandLandmarkerResult
handLandmarkerResultWithLandmarksPacket:outputPacketMap[kLandmarksOutStreamName.cppString]
worldLandmarksPacket:outputPacketMap[kWorldLandmarksOutStreamName
.cppString]
handednessPacket:outputPacketMap[kHandednessOutStreamName.cppString]];
}
- (void)processLiveStreamResult:(absl::StatusOr<PacketMap>)liveStreamResult {
if (![self.handLandmarkerLiveStreamDelegate
respondsToSelector:@selector(handLandmarker:
didFinishDetectionWithResult:timestampInMilliseconds:error:)]) {
return;
}
NSError *callbackError = nil;
if (![MPPCommonUtils checkCppError:liveStreamResult.status() toError:&callbackError]) {
dispatch_async(_callbackQueue, ^{
[self.handLandmarkerLiveStreamDelegate handLandmarker:self
didFinishDetectionWithResult:nil
timestampInMilliseconds:Timestamp::Unset().Value()
error:callbackError];
});
return;
}
PacketMap &outputPacketMap = liveStreamResult.value();
if (outputPacketMap[kImageOutStreamName.cppString].IsEmpty()) {
return;
}
MPPHandLandmarkerResult *result = [self handLandmarkerResultWithOutputPacketMap:outputPacketMap];
NSInteger timeStampInMilliseconds =
outputPacketMap[kImageOutStreamName.cppString].Timestamp().Value() /
kMicroSecondsPerMilliSecond;
dispatch_async(_callbackQueue, ^{
[self.handLandmarkerLiveStreamDelegate handLandmarker:self
didFinishDetectionWithResult:result
timestampInMilliseconds:timeStampInMilliseconds
error:callbackError];
});
}
#pragma mark - Public
- (instancetype)initWithOptions:(MPPHandLandmarkerOptions *)options error:(NSError **)error {
self = [super init];
@ -152,11 +119,14 @@ static NSString *const kTaskName = @"handLandmarker";
};
}
_visionTaskRunner =
[[MPPVisionTaskRunner alloc] initWithCalculatorGraphConfig:[taskInfo generateGraphConfig]
_visionTaskRunner = [[MPPVisionTaskRunner alloc] initWithTaskInfo:taskInfo
runningMode:options.runningMode
roiAllowed:NO
packetsCallback:std::move(packetsCallback)
imageInputStreamName:kImageInStreamName
normRectInputStreamName:kNormRectInStreamName
error:error];
if (!_visionTaskRunner) {
return nil;
}
@ -172,93 +142,29 @@ static NSString *const kTaskName = @"handLandmarker";
return [self initWithOptions:options error:error];
}
- (nullable MPPHandLandmarkerResult *)handLandmarkerResultWithOptionalOutputPacketMap:
(std::optional<PacketMap> &)outputPacketMap {
if (!outputPacketMap.has_value()) {
return nil;
}
MPPHandLandmarkerResult *result =
[self handLandmarkerResultWithOutputPacketMap:outputPacketMap.value()];
return result;
}
- (nullable MPPHandLandmarkerResult *)detectInImage:(MPPImage *)image error:(NSError **)error {
std::optional<NormalizedRect> rect =
[_visionTaskRunner normalizedRectWithImageOrientation:image.orientation
imageSize:CGSizeMake(image.width, image.height)
error:error];
if (!rect.has_value()) {
return nil;
}
std::optional<PacketMap> outputPacketMap = [_visionTaskRunner processImage:image error:error];
Packet imagePacket = [MPPVisionPacketCreator createPacketWithMPPImage:image error:error];
if (imagePacket.IsEmpty()) {
return nil;
}
Packet normalizedRectPacket =
[MPPVisionPacketCreator createPacketWithNormalizedRect:rect.value()];
PacketMap inputPacketMap = InputPacketMap(imagePacket, normalizedRectPacket);
std::optional<PacketMap> outputPacketMap = [_visionTaskRunner processImagePacketMap:inputPacketMap
error:error];
return [self handLandmarkerResultWithOptionalOutputPacketMap:outputPacketMap];
}
- (std::optional<PacketMap>)inputPacketMapWithMPPImage:(MPPImage *)image
timestampInMilliseconds:(NSInteger)timestampInMilliseconds
error:(NSError **)error {
std::optional<NormalizedRect> rect =
[_visionTaskRunner normalizedRectWithImageOrientation:image.orientation
imageSize:CGSizeMake(image.width, image.height)
error:error];
if (!rect.has_value()) {
return std::nullopt;
}
Packet imagePacket = [MPPVisionPacketCreator createPacketWithMPPImage:image
timestampInMilliseconds:timestampInMilliseconds
error:error];
if (imagePacket.IsEmpty()) {
return std::nullopt;
}
Packet normalizedRectPacket =
[MPPVisionPacketCreator createPacketWithNormalizedRect:rect.value()
timestampInMilliseconds:timestampInMilliseconds];
PacketMap inputPacketMap = InputPacketMap(imagePacket, normalizedRectPacket);
return inputPacketMap;
return [MPPHandLandmarker handLandmarkerResultWithOptionalOutputPacketMap:outputPacketMap];
}
- (nullable MPPHandLandmarkerResult *)detectInVideoFrame:(MPPImage *)image
timestampInMilliseconds:(NSInteger)timestampInMilliseconds
error:(NSError **)error {
std::optional<PacketMap> inputPacketMap = [self inputPacketMapWithMPPImage:image
std::optional<PacketMap> outputPacketMap =
[_visionTaskRunner processVideoFrame:image
timestampInMilliseconds:timestampInMilliseconds
error:error];
if (!inputPacketMap.has_value()) {
return nil;
}
std::optional<PacketMap> outputPacketMap =
[_visionTaskRunner processVideoFramePacketMap:inputPacketMap.value() error:error];
return [self handLandmarkerResultWithOptionalOutputPacketMap:outputPacketMap];
return [MPPHandLandmarker handLandmarkerResultWithOptionalOutputPacketMap:outputPacketMap];
}
- (BOOL)detectAsyncInImage:(MPPImage *)image
timestampInMilliseconds:(NSInteger)timestampInMilliseconds
error:(NSError **)error {
std::optional<PacketMap> inputPacketMap = [self inputPacketMapWithMPPImage:image
return [_visionTaskRunner processLiveStreamImage:image
timestampInMilliseconds:timestampInMilliseconds
error:error];
if (!inputPacketMap.has_value()) {
return NO;
}
return [_visionTaskRunner processLiveStreamPacketMap:inputPacketMap.value() error:error];
}
+ (NSArray<MPPConnection *> *)handPalmConnections {
@ -285,4 +191,51 @@ static NSString *const kTaskName = @"handLandmarker";
return MPPHandConnections;
}
#pragma mark - Private
- (void)processLiveStreamResult:(absl::StatusOr<PacketMap>)liveStreamResult {
if (![self.handLandmarkerLiveStreamDelegate
respondsToSelector:@selector(handLandmarker:
didFinishDetectionWithResult:timestampInMilliseconds:error:)]) {
return;
}
NSError *callbackError = nil;
if (![MPPCommonUtils checkCppError:liveStreamResult.status() toError:&callbackError]) {
dispatch_async(_callbackQueue, ^{
[self.handLandmarkerLiveStreamDelegate handLandmarker:self
didFinishDetectionWithResult:nil
timestampInMilliseconds:Timestamp::Unset().Value()
error:callbackError];
});
return;
}
PacketMap &outputPacketMap = liveStreamResult.value();
if (outputPacketMap[kImageOutStreamName.cppString].IsEmpty()) {
return;
}
MPPHandLandmarkerResult *result = HandLandmarkerResultWithOutputPacketMap(outputPacketMap);
NSInteger timeStampInMilliseconds =
outputPacketMap[kImageOutStreamName.cppString].Timestamp().Value() /
kMicroSecondsPerMilliSecond;
dispatch_async(_callbackQueue, ^{
[self.handLandmarkerLiveStreamDelegate handLandmarker:self
didFinishDetectionWithResult:result
timestampInMilliseconds:timeStampInMilliseconds
error:callbackError];
});
}
+ (nullable MPPHandLandmarkerResult *)handLandmarkerResultWithOptionalOutputPacketMap:
(std::optional<PacketMap> &)outputPacketMap {
if (!outputPacketMap.has_value()) {
return nil;
}
return HandLandmarkerResultWithOutputPacketMap(outputPacketMap.value());
}
@end