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import gradio as gr
import imageio
import torch
from diffusers import TextToVideoZeroPipeline
from video_diffusion.tuneavideo.util import save_videos_grid
from video_diffusion.utils.model_list import stable_model_list
class ZeroShotText2VideoGenerator:
def __init__(self):
self.pipe = None
def load_model(self, model_id):
if self.pipe is None:
self.pipe = TextToVideoZeroPipeline.from_pretrained(model_id, torch_dtype=torch.float16).to("cuda")
self.pipe.to("cuda")
self.pipe.enable_xformers_memory_efficient_attention()
self.pipe.enable_attention_slicing()
return self.pipe
def generate_video(
self,
prompt,
negative_prompt,
model_id,
height,
width,
video_length,
guidance_scale,
fps,
t0,
t1,
motion_field_strength_x,
motion_field_strength_y,
):
pipe = self.load_model(model_id)
result = pipe(
prompt=prompt,
negative_prompt=negative_prompt,
height=height,
width=width,
video_length=video_length,
guidance_scale=guidance_scale,
t0=t0,
t1=t1,
motion_field_strength_x=motion_field_strength_x,
motion_field_strength_y=motion_field_strength_y,
).images
result = [(r * 255).astype("uint8") for r in result]
imageio.mimsave("video.mp4", result, fps=fps)
return "video.mp4"
def app():
with gr.Blocks():
with gr.Row():
with gr.Column():
zero_shot_text2video_prompt = gr.Textbox(
lines=1,
placeholder="Prompt",
show_label=False,
)
zero_shot_text2video_negative_prompt = gr.Textbox(
lines=1,
placeholder="Negative Prompt",
show_label=False,
)
zero_shot_text2video_model_id = gr.Dropdown(
choices=stable_model_list,
label="Stable Model List",
value=stable_model_list[0],
)
with gr.Row():
with gr.Column():
zero_shot_text2video_guidance_scale = gr.Slider(
label="Guidance Scale",
minimum=1,
maximum=15,
step=1,
value=7.5,
)
zero_shot_text2video_video_length = gr.Slider(
label="Video Length",
minimum=1,
maximum=100,
step=1,
value=10,
)
zero_shot_text2video_t0 = gr.Slider(
label="Timestep T0",
minimum=0,
maximum=100,
step=1,
value=44,
)
zero_shot_text2video_motion_field_strength_x = gr.Slider(
label="Motion Field Strength X",
minimum=0,
maximum=100,
step=1,
value=12,
)
zero_shot_text2video_fps = gr.Slider(
label="Fps",
minimum=1,
maximum=60,
step=1,
value=10,
)
with gr.Row():
with gr.Column():
zero_shot_text2video_height = gr.Slider(
label="Height",
minimum=128,
maximum=1280,
step=32,
value=512,
)
zero_shot_text2video_width = gr.Slider(
label="Width",
minimum=128,
maximum=1280,
step=32,
value=512,
)
zero_shot_text2video_t1 = gr.Slider(
label="Timestep T1",
minimum=0,
maximum=100,
step=1,
value=47,
)
zero_shot_text2video_motion_field_strength_y = gr.Slider(
label="Motion Field Strength Y",
minimum=0,
maximum=100,
step=1,
value=12,
)
zero_shot_text2video_button = gr.Button(value="Generator")
with gr.Column():
zero_shot_text2video_output = gr.Video(label="Output")
zero_shot_text2video_button.click(
fn=ZeroShotText2VideoGenerator().generate_video,
inputs=[
zero_shot_text2video_prompt,
zero_shot_text2video_negative_prompt,
zero_shot_text2video_model_id,
zero_shot_text2video_height,
zero_shot_text2video_width,
zero_shot_text2video_video_length,
zero_shot_text2video_guidance_scale,
zero_shot_text2video_fps,
zero_shot_text2video_t0,
zero_shot_text2video_t1,
zero_shot_text2video_motion_field_strength_x,
zero_shot_text2video_motion_field_strength_y,
],
outputs=zero_shot_text2video_output,
)
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