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(v0-data-preprocess)=
# 🧱 Data Preprocess
To save GPU memory, we precompute text embeddings and VAE latents to eliminate the need to load the text encoder and VAE during training.
We provide a sample dataset to help you get started. Download the source media using the following command:
```bash
python scripts/huggingface/download_hf.py --repo_id=FastVideo/mini_i2v_dataset --local_dir=data/mini_i2v_dataset --repo_type=dataset
```
The folder `crush-smol_raw/` contains raw videos and captions for testing preprocessing, while `crush-smol_preprocessed/` contains latents prepared for testing training.
To preprocess the dataset for fine-tuning or distillation, run:
```
bash scripts/preprocess/v1_preprocess_wan_data_t2v # for wan
```
## Process your own dataset
If you wish to create your own dataset for finetuning or distillation, please refer `mini_i2v_dataset/crush-smol_raw/` to structure you video dataset in the following format:
```
path_to_your_dataset_folder/
├── videos/
│ ├── 0.mp4
│ ├── 1.mp4
├── videos.txt
└── prompt.txt
```
To geranate the `videos2caption.json` and `merge.txt`, run
``` python
python scripts/dataset_preparation/prepare_json_file.py --data_folder mini_i2v_dataset/crush-smol_raw/ --output your_output_folder
```
Adjust the `DATA_MERGE_PATH` and `OUTPUT_DIR` in `scripts/preprocess/v1_preprocess_****.sh` accordingly and run:
```
bash scripts/preprocess/v1_preprocess_****.sh
```
The preprocessed data will be put into the `OUTPUT_DIR` and the `videos2caption.json` can be used in finetune and distill scripts.