Updated iOS object detector to use refactored vision task runner

mediapipe/tasks/ios/vision/object_detector/BUILD

@@ -55,7 +55,7 @@ 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/object_detector/utils:MPPObjectDetectorOptionsHelpers",
         "//mediapipe/tasks/ios/vision/object_detector/utils:MPPObjectDetectorResultHelpers",
     ],

mediapipe/tasks/ios/vision/object_detector/sources/MPPObjectDetector.mm

@@ -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/object_detector/utils/sources/MPPObjectDetectorOptions+Helpers.h"
 #import "mediapipe/tasks/ios/vision/object_detector/utils/sources/MPPObjectDetectorResult+Helpers.h"
 
@@ -47,6 +47,12 @@ static NSString *const kTaskName = @"objectDetector";
     }                                                     \
   }
 
+#define ObjectDetectorResultWithOutputPacketMap(outputPacketMap)                                   \
+  {                                                                                                \
+    [MPPObjectDetectorResult                                                                       \
+        objectDetectorResultWithDetectionsPacket:outputPacketMap[kDetectionsStreamName.cppString]] \
+  }
+
 @interface MPPObjectDetector () {
   /** iOS Vision Task Runner */
   MPPVisionTaskRunner *_visionTaskRunner;
@@ -57,42 +63,7 @@ static NSString *const kTaskName = @"objectDetector";
 
 @implementation MPPObjectDetector
 
-- (void)processLiveStreamResult:(absl::StatusOr<PacketMap>)liveStreamResult {
+#pragma mark - Public
-  if (![self.objectDetectorLiveStreamDelegate
-          respondsToSelector:@selector(objectDetector:
-                                 didFinishDetectionWithResult:timestampInMilliseconds:error:)]) {
-    return;
-  }
-
-  NSError *callbackError = nil;
-  if (![MPPCommonUtils checkCppError:liveStreamResult.status() toError:&callbackError]) {
-    dispatch_async(_callbackQueue, ^{
-      [self.objectDetectorLiveStreamDelegate objectDetector:self
-                               didFinishDetectionWithResult:nil
-                                    timestampInMilliseconds:Timestamp::Unset().Value()
-                                                      error:callbackError];
-    });
-    return;
-  }
-
-  PacketMap &outputPacketMap = liveStreamResult.value();
-  if (outputPacketMap[kImageOutStreamName.cppString].IsEmpty()) {
-    return;
-  }
-
-  MPPObjectDetectorResult *result = [MPPObjectDetectorResult
-      objectDetectorResultWithDetectionsPacket:outputPacketMap[kDetectionsStreamName.cppString]];
-
-  NSInteger timeStampInMilliseconds =
-      outputPacketMap[kImageOutStreamName.cppString].Timestamp().Value() /
-      kMicroSecondsPerMilliSecond;
-  dispatch_async(_callbackQueue, ^{
-    [self.objectDetectorLiveStreamDelegate objectDetector:self
-                             didFinishDetectionWithResult:result
-                                  timestampInMilliseconds:timeStampInMilliseconds
-                                                    error:callbackError];
-  });
-}
 
 - (instancetype)initWithOptions:(MPPObjectDetectorOptions *)options error:(NSError **)error {
   self = [super init];
@@ -135,10 +106,12 @@ static NSString *const kTaskName = @"objectDetector";
       };
     }
 
-    _visionTaskRunner =
+    _visionTaskRunner = [[MPPVisionTaskRunner alloc] initWithTaskInfo:taskInfo
-        [[MPPVisionTaskRunner alloc] initWithCalculatorGraphConfig:[taskInfo generateGraphConfig]
                                                           runningMode:options.runningMode
+                                                           roiAllowed:NO
                                                       packetsCallback:std::move(packetsCallback)
+                                                 imageInputStreamName:kImageInStreamName
+                                              normRectInputStreamName:kNormRectStreamName
                                                                 error:error];
 
     if (!_visionTaskRunner) {
@@ -157,101 +130,76 @@ static NSString *const kTaskName = @"objectDetector";
   return [self initWithOptions:options error:error];
 }
 
-- (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;
-}
-
-- (nullable MPPObjectDetectorResult *)detectInImage:(MPPImage *)image
-                                   regionOfInterest:(CGRect)roi
-                                              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;
-  }
-
-  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];
-  if (!outputPacketMap.has_value()) {
-    return nil;
-  }
-
-  return [MPPObjectDetectorResult
-      objectDetectorResultWithDetectionsPacket:outputPacketMap
-                                                   .value()[kDetectionsStreamName.cppString]];
-}
-
 - (nullable MPPObjectDetectorResult *)detectInImage:(MPPImage *)image error:(NSError **)error {
-  return [self detectInImage:image regionOfInterest:CGRectZero error:error];
+  std::optional<PacketMap> outputPacketMap = [_visionTaskRunner processImage:image error:error];
+
+  return [MPPObjectDetector objectDetectorResultWithOptionalOutputPacketMap:outputPacketMap];
 }
 
 - (nullable MPPObjectDetectorResult *)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 =
+  return [MPPObjectDetector objectDetectorResultWithOptionalOutputPacketMap:outputPacketMap];
-      [_visionTaskRunner processVideoFramePacketMap:inputPacketMap.value() error:error];
-
-  if (!outputPacketMap.has_value()) {
-    return nil;
-  }
-
-  return [MPPObjectDetectorResult
-      objectDetectorResultWithDetectionsPacket:outputPacketMap
-                                                   .value()[kDetectionsStreamName.cppString]];
 }
 
 - (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;
+
+#pragma mark - Private
+
+- (void)processLiveStreamResult:(absl::StatusOr<PacketMap>)liveStreamResult {
+  if (![self.objectDetectorLiveStreamDelegate
+          respondsToSelector:@selector(objectDetector:
+                                 didFinishDetectionWithResult:timestampInMilliseconds:error:)]) {
+    return;
   }
 
-  return [_visionTaskRunner processLiveStreamPacketMap:inputPacketMap.value() error:error];
+  NSError *callbackError = nil;
+  if (![MPPCommonUtils checkCppError:liveStreamResult.status() toError:&callbackError]) {
+    dispatch_async(_callbackQueue, ^{
+      [self.objectDetectorLiveStreamDelegate objectDetector:self
+                               didFinishDetectionWithResult:nil
+                                    timestampInMilliseconds:Timestamp::Unset().Value()
+                                                      error:callbackError];
+    });
+    return;
+  }
+
+  PacketMap &outputPacketMap = liveStreamResult.value();
+  if (outputPacketMap[kImageOutStreamName.cppString].IsEmpty()) {
+    return;
+  }
+
+  MPPObjectDetectorResult *result = ObjectDetectorResultWithOutputPacketMap(outputPacketMap);
+
+  NSInteger timeStampInMilliseconds =
+      outputPacketMap[kImageOutStreamName.cppString].Timestamp().Value() /
+      kMicroSecondsPerMilliSecond;
+  dispatch_async(_callbackQueue, ^{
+    [self.objectDetectorLiveStreamDelegate objectDetector:self
+                             didFinishDetectionWithResult:result
+                                  timestampInMilliseconds:timeStampInMilliseconds
+                                                    error:callbackError];
+  });
+}
+
++ (nullable MPPObjectDetectorResult *)objectDetectorResultWithOptionalOutputPacketMap:
+    (std::optional<PacketMap> &)outputPacketMap {
+  if (!outputPacketMap.has_value()) {
+    return nil;
+  }
+
+  return ObjectDetectorResultWithOutputPacketMap(outputPacketMap.value());
 }
 
 @end