46 lines
1.6 KiB
Python
46 lines
1.6 KiB
Python
# SPDX-License-Identifier: Apache-2.0
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from torchvision import transforms
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from torchvision.transforms import Lambda
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from fastvideo.dataset.parquet_dataset_map_style import (
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build_parquet_map_style_dataloader)
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from fastvideo.dataset.preprocessing_datasets import VideoCaptionMergedDataset
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from fastvideo.dataset.transform import (CenterCropResizeVideo, Normalize255,
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TemporalRandomCrop)
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from fastvideo.dataset.validation_dataset import ValidationDataset
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def getdataset(args) -> VideoCaptionMergedDataset:
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if args.do_temporal_sample:
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temporal_sample = TemporalRandomCrop(args.num_frames) # 16 x
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else:
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temporal_sample = None
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norm_fun = Lambda(lambda x: 2.0 * x - 1.0)
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resize_topcrop = [
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CenterCropResizeVideo((args.max_height, args.max_width), top_crop=True),
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]
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resize = [
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CenterCropResizeVideo((args.max_height, args.max_width)),
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]
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transform = transforms.Compose([
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# Normalize255(),
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*resize,
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])
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transform_topcrop = transforms.Compose([
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Normalize255(),
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*resize_topcrop,
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norm_fun,
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])
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return VideoCaptionMergedDataset(data_merge_path=args.data_merge_path,
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args=args,
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transform=transform,
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temporal_sample=temporal_sample,
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transform_topcrop=transform_topcrop,
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seed=args.seed)
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__all__ = [
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"build_parquet_map_style_dataloader", "ValidationDataset",
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"VideoCaptionMergedDataset"
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]
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