Added iOS task error codes

mediapipe/tasks/ios/common/BUILD

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+# Copyright 2022 The MediaPipe Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+package(default_visibility = ["//mediapipe/tasks:internal"])
+
+licenses(["notice"])
+
+objc_library(
+    name = "MPPCommon",
+    hdrs = [
+        "sources/MPPCommon.h",
+    ],
+    module_name = "MPPCommon",
+)
+

mediapipe/tasks/ios/common/sources/MPPCommon.h

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+// Copyright 2022 The MediaPipe Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#import <Foundation/Foundation.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+/**
+ * @enum MPPTasksErrorCode
+ * This enum specifies  error codes for Mediapipe Task Library.
+ * It maintains a 1:1 mapping to MediaPipeTasksStatus of the C ++libray.
+ */
+typedef NS_ENUM(NSUInteger, MPPTasksErrorCode) {
+
+  // Generic error codes.
+
+  // Unspecified error.
+  MPPTasksErrorCodeError = 1,
+  // Invalid argument specified.
+  MPPTasksErrorCodeInvalidArgumentError = 2,
+  // Invalid FlatBuffer file or buffer specified.
+  MPPTasksErrorCodeInvalidFlatBufferError = 3,
+  // Model contains a builtin op that isn't supported by the OpResolver or
+  // delegates.
+  MPPTasksErrorCodeUnsupportedBuiltinOp = 4,
+  // Model contains a custom op that isn't supported by the OpResolver or
+  // delegates.
+  MPPTasksErrorCodeUnsupportedCustomOp = 5,
+
+  // File I/O error codes.
+
+  // No such file.
+  MPPTasksErrorCodeFileNotFoundError = 100,
+  // Permission issue.
+  MPPTasksErrorCodeFilePermissionDeniedError,
+  // I/O error when reading file.
+  MPPTasksErrorCodeFileReadError,
+  // I/O error when mmap-ing file.
+  MPPTasksErrorCodeFileMmapError,
+  // ZIP I/O error when unpacMPPTasksErrorCodeing the zip file.
+  MPPTasksErrorCodeFileZipError,
+
+  // TensorFlow Lite metadata error codes.
+
+  // Unexpected schema version (aMPPTasksErrorCodea file_identifier) in the Metadata FlatBuffer.
+  MPPTasksErrorCodeMetadataInvalidSchemaVersionError = 200,
+  // No such associated file within metadata, or file has not been pacMPPTasksErrorCodeed.
+  MPPTasksErrorCodeMetadataAssociatedFileNotFoundError,
+  // ZIP I/O error when unpacMPPTasksErrorCodeing an associated file.
+  MPPTasksErrorCodeMetadataAssociatedFileZipError,
+  // Inconsistency error between the metadata and actual TF Lite model.
+  // E.g.: number of labels and output tensor values differ.
+  MPPTasksErrorCodeMetadataInconsistencyError,
+  // Invalid process units specified.
+  // E.g.: multiple ProcessUnits with the same type for a given tensor.
+  MPPTasksErrorCodeMetadataInvalidProcessUnitsError,
+  // Inconsistency error with the number of labels.
+  // E.g.: label files for different locales have a different number of labels.
+  MPPTasksErrorCodeMetadataNumLabelsMismatchError,
+  // Score calibration parameters parsing error.
+  // E.g.: too many parameters provided in the corresponding associated file.
+  MPPTasksErrorCodeMetadataMalformedScoreCalibrationError,
+  // Unexpected number of subgraphs for the current task.
+  // E.g.: image classification expects a single subgraph.
+  MPPTasksErrorCodeMetadataInvalidNumSubgraphsError,
+  // A given tensor requires NormalizationOptions but none were found.
+  // E.g.: float input tensor requires normalization to preprocess input images.
+  MPPTasksErrorCodeMetadataMissingNormalizationOptionsError,
+  // Invalid ContentProperties specified.
+  // E.g. expected ImageProperties, got BoundingBoxProperties.
+  MPPTasksErrorCodeMetadataInvalidContentPropertiesError,
+  // Metadata is mandatory but was not found.
+  // E.g. current task requires TFLite Model Metadata but none was found.
+  MPPTasksErrorCodeMetadataNotFoundError,
+  // Associated TENSOR_AXIS_LABELS or TENSOR_VALUE_LABELS file is mandatory but
+  // none was found or it was empty.
+  // E.g. current task requires labels but none were found.
+  MPPTasksErrorCodeMetadataMissingLabelsError,
+  // The ProcessingUnit for tokenizer is not correctly configured.
+  // E.g BertTokenizer doesn't have a valid vocab file associated.
+  MPPTasksErrorCodeMetadataInvalidTokenizerError,
+
+  // Input tensor(s) error codes.
+
+  // Unexpected number of input tensors for the current task.
+  // E.g. current task expects a single input tensor.
+  MPPTasksErrorCodeInvalidNumInputTensorsError = 300,
+  // Unexpected input tensor dimensions for the current task.
+  // E.g.: only 4D input tensors supported.
+  MPPTasksErrorCodeInvalidInputTensorDimensionsError,
+  // Unexpected input tensor type for the current task.
+  // E.g.: current task expects a uint8 pixel image as input.
+  MPPTasksErrorCodeInvalidInputTensorTypeError,
+  // Unexpected input tensor bytes size.
+  // E.g.: size in bytes does not correspond to the expected number of pixels.
+  MPPTasksErrorCodeInvalidInputTensorSizeError,
+  // No correct input tensor found for the model.
+  // E.g.: input tensor name is not part of the text model's input tensors.
+  MPPTasksErrorCodeInputTensorNotFoundError,
+
+  // Output tensor(s) error codes.
+
+  // Unexpected output tensor dimensions for the current task.
+  // E.g.: only a batch size of 1 is supported.
+  MPPTasksErrorCodeInvalidOutputTensorDimensionsError = 400,
+  // Unexpected input tensor type for the current task.
+  // E.g.: multi-head model with different output tensor types.
+  MPPTasksErrorCodeInvalidOutputTensorTypeError,
+  // No correct output tensor found for the model.
+  // E.g.: output tensor name is not part of the text model's output tensors.
+  MPPTasksErrorCodeOutputTensorNotFoundError,
+  // Unexpected number of output tensors for the current task.
+  // E.g.: current task expects a single output tensor.
+  MPPTasksErrorCodeInvalidNumOutputTensorsError,
+
+  // Image processing error codes.
+
+  // Unspecified image processing failures.
+  MPPTasksErrorCodeImageProcessingError = 500,
+  // Unexpected input or output buffer metadata.
+  // E.g.: rotate RGBA buffer to Grayscale buffer by 90 degrees.
+  MPPTasksErrorCodeImageProcessingInvalidArgumentError,
+  // Image processing operation failures.
+  // E.g. libyuv rotation failed for an unknown reason.
+  MPPTasksErrorCodeImageProcessingBackendError,
+
+  // Task runner error codes.
+  MPPTasksErrorCodeRunnerError = 600,
+  // Task runner is not initialized.
+  MPPTasksErrorCodeRunnerInitializationError,
+  // Task runner is not started successfully.
+  MPPTasksErrorCodeRunnerFailsToStartError,
+  // Task runner is not started.
+  MPPTasksErrorCodeRunnerNotStartedError,
+  // Task runner API is called in the wrong processing mode.
+  MPPTasksErrorCodeRunnerApiCalledInWrongModeError,
+  // Task runner receives/produces invalid MediaPipe packet timestamp.
+  MPPTasksErrorCodeRunnerInvalidTimestampError,
+  // Task runner receives unexpected MediaPipe graph input packet.
+  // E.g. The packet type doesn't match the graph input stream's data type.
+  MPPTasksErrorCodeRunnerUnexpectedInputError,
+  // Task runner produces unexpected MediaPipe graph output packet.
+  // E.g. The number of output packets is not equal to the number of graph
+  // output streams.
+  MPPTasksErrorCodeRunnerUnexpectedOutputError,
+  // Task runner is not closed successfully.
+  MPPTasksErrorCodeRunnerFailsToCloseError,
+  // Task runner's model resources cache service is unavailable or the
+  // targeting model resources bundle is not found.
+  MPPTasksErrorCodeRunnerModelResourcesCacheServiceError,
+
+  // Task graph error codes.
+  MPPTasksErrorCodeGraphError = 700,
+  // Task graph is not implemented.
+  MPPTasksErrorCodeTaskGraphNotImplementedError,
+  // Task graph config is invalid.
+  MPPTasksErrorCodeInvalidTaskGraphConfigError,
+
+  MPPTasksErrorCodeFirst = MPPTasksErrorCodeError,
+
+  /**
+   * The last error code in TFLSupportErrorCode (for internal use only).
+   */
+  MPPTasksErrorCodeLast = MPPTasksErrorCodeInvalidTaskGraphConfigError,
+
+} NS_SWIFT_NAME(TasksErrorCode);
+
+NS_ASSUME_NONNULL_END