| # <u>Data Preprocessing Pipeline</u> by *Helios* |
| This repository describes the data preprocessing pipeline used in the [Helios](https://arxiv.org/abs/2603.04379) paper. And we prepare a toy training data [here](https://huggingface.co/BestWishYsh/HeliosBench-Weights/tree/main/demo_data). |
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| ## ⚙️ Requirements and Installation |
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| ### Environment |
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| ```bash |
| # Activate conda environment |
| conda activate helios |
| ``` |
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| ## 🗝️ Usage |
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| ### Step 1 - Prepare Metadata and Organize Videos |
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| To train your own video generation model, create JSON files following this [format](./example/toy_data/toy_filter.json): |
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| ``` |
| [ |
| { |
| "cut": [0, 81], |
| "crop": [0, 832, 0, 480], |
| "fps": 24.0, |
| "num_frames": 81, |
| "resolution": { |
| "height": 480, |
| "width": 832 |
| }, |
| "cap": [ |
| "A stunning mid-afternoon ..." |
| ], |
| "path": "videos/2_240_ori81.mp4" |
| }, |
| { |
| "cut": [0, 81], |
| ... |
| } |
| ... |
| ] |
| ``` |
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| and arrange video files following this [structure](./example): |
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| ``` |
| 📦 example/ |
| ├── 📂 toy_data/ |
| │ ├── 📂 videos |
| │ │ ├── 2_240_ori81.mp4 |
| │ │ ├── 239_120_ori129.mp4.mp4 |
| │ │ └── ... |
| │ └── 📄 toy_data_1.json |
| │ |
| ├── 📂 toy_data_2/ |
| │ │ ├── A.mp4 |
| │ │ ├── B.mp4 |
| │ │ └── ... |
| │ └── 📄 toy_data_2.json |
| ... |
| ``` |
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| ### Step 2 - Prepare Autoregressive Real Data |
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| These data can be used for training Stage-1, Stage-2, and Stage-3. |
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| ```bash |
| # Remember to modify the input and output paths before running |
| bash get_short-latents.py |
| ``` |
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| ### Step 3 - Prepare Autoregressive ODE Data |
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| These data can only be used for training Stage-3. |
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| ```bash |
| # Remember to modify the input and output paths before running |
| bash get_ode-pairs.sh |
| ``` |
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| ### (Optional) Step 4 - Prepare Text Data |
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| If you want to use the [Self-Forcing](https://github.com/guandeh17/Self-Forcing) training approach, prepare text embeddings: |
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| ```bash |
| # Remember to modify the input and output paths before running |
| bash get_text-embedding.sh |
| ``` |
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| ## 🔒 Acknowledgement |
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| * This project wouldn't be possible without the following open-sourced repositories: [OpenSora Plan](https://github.com/PKU-YuanGroup/Open-Sora-Plan), [OpenSora](https://github.com/hpcaitech/Open-Sora), [Video-Dataset-Scripts](https://github.com/huggingface/video-dataset-scripts) |
