Dataset over a directory tree of the form root_dir/<class_name>/<audio_file.wav>, structurally identical to ImageFolderDataset (Phase 2): sorted subdirectory names are classes, sorted filenames within each are samples, decoded lazily per get() via WavReader. More...

#include <audio_folder_dataset.hpp>

Inheritance diagram for pulsatrix::AudioFolderDataset:

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Collaboration diagram for pulsatrix::AudioFolderDataset:

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Public Member Functions
	AudioFolderDataset (const std::string &root_dir, DeviceBackend *backend)

int64_t	size () const override
	Number of samples in this dataset.

Sample	get (int64_t index) const override

const std::vector< std::string > &	classes () const
	Sorted class names; classes()[i] is the human-readable name for label i.

Public Member Functions inherited from pulsatrix::Dataset
virtual	~Dataset ()=default

Detailed Description

Dataset over a directory tree of the form root_dir/<class_name>/<audio_file.wav>, structurally identical to ImageFolderDataset (Phase 2): sorted subdirectory names are classes, sorted filenames within each are samples, decoded lazily per get() via WavReader.

Constructor & Destructor Documentation

◆ AudioFolderDataset()

pulsatrix::AudioFolderDataset::AudioFolderDataset	(	const std::string &	root_dir,
		DeviceBackend *	backend
	)

Exceptions

std::runtime_error if root_dir doesn't exist/isn't a directory, or contains no class subdirectories.

Member Function Documentation

◆ classes()

const std::vector< std::string > & pulsatrix::AudioFolderDataset::classes ( ) const

inline

Sorted class names; classes()[i] is the human-readable name for label i.

◆ get()

Sample pulsatrix::AudioFolderDataset::get ( int64_t index ) const

overridevirtual

Exceptions

std::out_of_range if index is out of bounds.

Returns: {waveform (1,channels,num_samples), label (1,) float, the class's sorted-order index}.

Implements pulsatrix::Dataset.

◆ size()

int64_t pulsatrix::AudioFolderDataset::size ( ) const