mirror of
https://github.com/modelscope/DiffSynth-Studio.git
synced 2026-03-19 06:48:12 +00:00
43 lines
1.2 KiB
Python
43 lines
1.2 KiB
Python
import torch
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import torchvision
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import imageio
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from diffsynth import ModelManager
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def save_video(tensor,
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save_file=None,
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fps=30,
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nrow=8,
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normalize=True,
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value_range=(-1, 1)):
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tensor = tensor.clamp(min(value_range), max(value_range))
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tensor = torch.stack([
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torchvision.utils.make_grid(
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u, nrow=nrow, normalize=normalize, value_range=value_range)
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for u in tensor.unbind(2)
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],
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dim=1).permute(1, 2, 3, 0)
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tensor = (tensor * 255).type(torch.uint8).cpu()
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# write video
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writer = imageio.get_writer(
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save_file, fps=fps, codec='libx264', quality=8)
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for frame in tensor.numpy():
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writer.append_data(frame)
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writer.close()
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model_manager = ModelManager(torch_dtype=torch.float, device="cuda")
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model_manager.load_models([
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"models/WanX/vae.pth",
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])
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vae = model_manager.fetch_model('wanxvideo_vae')
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latents = [torch.load('sample.pt')]
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videos = vae.decode(latents)
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back_encode = vae.encode(videos)
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save_video(videos[0][None], save_file='example.mp4', fps=16, nrow=1)
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print(latents)
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print(videos)
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print(back_encode)
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