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import torch
from PIL import Image
from diffsynth import save_video, VideoData
from diffsynth.pipelines.wan_video_new import WanVideoPipeline, ModelConfig
pipe = WanVideoPipeline.from_pretrained(
torch_dtype=torch.bfloat16,
device="cuda",
model_configs=[
ModelConfig(model_id="Wan-AI/Wan2.1-T2V-1.3B", origin_file_pattern="diffusion_pytorch_model*.safetensors", offload_device="cpu"),
ModelConfig(model_id="Wan-AI/Wan2.1-T2V-1.3B", origin_file_pattern="models_t5_umt5-xxl-enc-bf16.pth", offload_device="cpu"),
ModelConfig(model_id="Wan-AI/Wan2.1-T2V-1.3B", origin_file_pattern="Wan2.1_VAE.pth", offload_device="cpu"),
],
)
pipe.enable_vram_management()
# Text-to-video
video = pipe(
prompt="纪实摄影风格画面,一只活泼的小狗在绿茵茵的草地上迅速奔跑。小狗毛色棕黄,两只耳朵立起,神情专注而欢快。阳光洒在它身上,使得毛发看上去格外柔软而闪亮。背景是一片开阔的草地,偶尔点缀着几朵野花,远处隐约可见蓝天和几片白云。透视感鲜明,捕捉小狗奔跑时的动感和四周草地的生机。中景侧面移动视角。",
negative_prompt="色调艳丽,过曝,静态,细节模糊不清,字幕,风格,作品,画作,画面,静止,整体发灰,最差质量,低质量,JPEG压缩残留,丑陋的,残缺的,多余的手指,画得不好的手部,画得不好的脸部,畸形的,毁容的,形态畸形的肢体,手指融合,静止不动的画面,杂乱的背景,三条腿,背景人很多,倒着走",
seed=0, tiled=True,
)
save_video(video, "video1.mp4", fps=15, quality=5)
# Video-to-video
video = VideoData("video1.mp4", height=480, width=832)
video = pipe(
prompt="纪实摄影风格画面,一只活泼的小狗戴着黑色墨镜在绿茵茵的草地上迅速奔跑。小狗毛色棕黄,戴着黑色墨镜,两只耳朵立起,神情专注而欢快。阳光洒在它身上,使得毛发看上去格外柔软而闪亮。背景是一片开阔的草地,偶尔点缀着几朵野花,远处隐约可见蓝天和几片白云。透视感鲜明,捕捉小狗奔跑时的动感和四周草地的生机。中景侧面移动视角。",
negative_prompt="色调艳丽,过曝,静态,细节模糊不清,字幕,风格,作品,画作,画面,静止,整体发灰,最差质量,低质量,JPEG压缩残留,丑陋的,残缺的,多余的手指,画得不好的手部,画得不好的脸部,畸形的,毁容的,形态畸形的肢体,手指融合,静止不动的画面,杂乱的背景,三条腿,背景人很多,倒着走",
input_video=video, denoising_strength=0.7,
seed=1, tiled=True
)
save_video(video, "video2.mp4", fps=15, quality=5)