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←API Reference ←NSDK

PlaybackDatasetLoader

Declaration

class PlaybackDatasetLoader

Summary

Base class for loading playback dataset data from various sources. This class provides a base implementation that must be subclassed. Subclasses must override loadCaptureJSON(), loadImage(imageName:), loadDepthData(depthFileName:), and loadDepthConfidence(confidenceFileName:) to provide concrete implementations. The loader uses on-demand loading - only the capture JSON is loaded upfront, and frame images/depth data are loaded when requested by PlaybackDataset.

Notice

Note: This class acts as an abstract base class. Do not instantiate directly.

Constructors

init()

Methods

Name	Type	Summary
info	String	Returns details about the loader configuration.
loadCaptureJSON	Data?	Loads the capture JSON data from the data source. This method must be overridden by subclasses. The base implementation reports the missing override and returns `nil`.
loadDataset	PlaybackDataset?	Loads a dataset from the data source. This method only loads the capture JSON metadata upfront. Frame images and depth data are loaded on-demand when requested, reducing memory pressure for large datasets.
loadDepthConfidence	Data?	Loads depth confidence data from the data source. This method must be overridden by subclasses. The base implementation reports the missing override and returns `nil`. Called on-demand when confidence data is requested.
loadDepthData	Data?	Loads depth data from the data source. This method must be overridden by subclasses. The base implementation reports the missing override and returns `nil`. Called on-demand when depth data is requested.
loadImage	CGImage?	Loads an image from the data source. This method must be overridden by subclasses. The base implementation reports the missing override and returns `nil`. Called on-demand when a frame image is requested.

Relationships

conforms to: PlaybackDatasetSource

derived: BundlePlaybackDatasetLoader

Class PlaybackDatasetLoader PlaybackDatasetLoader

Declaration​

Summary​

Constructors​

Methods​

Relationships​