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import os
import torch
import argparse
import torchvision
from pipeline_videogen import VideoGenPipeline
from download import find_model
from diffusers.schedulers import DDIMScheduler, DDPMScheduler, PNDMScheduler, EulerDiscreteScheduler
from diffusers.models import AutoencoderKL
from transformers import CLIPTokenizer, CLIPTextModel, CLIPTextModelWithProjection
from omegaconf import OmegaConf
import os, sys
sys.path.append(os.path.split(sys.path[0])[0])
from models import get_models
import imageio
def main(args):
#torch.manual_seed(args.seed)
torch.set_grad_enabled(False)
device = "cuda" if torch.cuda.is_available() else "cpu"
sd_path = args.pretrained_path + "/stable-diffusion-v1-4"
unet = get_models(args, sd_path).to(device, dtype=torch.float16)
state_dict = find_model(args.pretrained_path + "/lavie_base.pt")
unet.load_state_dict(state_dict)
vae = AutoencoderKL.from_pretrained(sd_path, subfolder="vae", torch_dtype=torch.float16).to(device)
tokenizer_one = CLIPTokenizer.from_pretrained(sd_path, subfolder="tokenizer")
text_encoder_one = CLIPTextModel.from_pretrained(sd_path, subfolder="text_encoder", torch_dtype=torch.float16).to(device) # huge
# set eval mode
unet.eval()
vae.eval()
text_encoder_one.eval()
if args.sample_method == 'ddim':
scheduler = DDIMScheduler.from_pretrained(sd_path,
subfolder="scheduler",
beta_start=args.beta_start,
beta_end=args.beta_end,
beta_schedule=args.beta_schedule)
elif args.sample_method == 'eulerdiscrete':
scheduler = EulerDiscreteScheduler.from_pretrained(sd_path,
subfolder="scheduler",
beta_start=args.beta_start,
beta_end=args.beta_end,
beta_schedule=args.beta_schedule)
elif args.sample_method == 'ddpm':
scheduler = DDPMScheduler.from_pretrained(sd_path,
subfolder="scheduler",
beta_start=args.beta_start,
beta_end=args.beta_end,
beta_schedule=args.beta_schedule)
else:
raise NotImplementedError
videogen_pipeline = VideoGenPipeline(vae=vae,
text_encoder=text_encoder_one,
tokenizer=tokenizer_one,
scheduler=scheduler,
unet=unet).to(device)
videogen_pipeline.enable_xformers_memory_efficient_attention()
if not os.path.exists(args.output_folder):
os.makedirs(args.output_folder)
video_grids = []
for prompt in args.text_prompt:
print('Processing the ({}) prompt'.format(prompt))
videos = videogen_pipeline(prompt,
video_length=args.video_length,
height=args.image_size[0],
width=args.image_size[1],
num_inference_steps=args.num_sampling_steps,
guidance_scale=args.guidance_scale).video
imageio.mimwrite(args.output_folder + prompt.replace(' ', '_') + '.mp4', videos[0], fps=8, quality=9) # highest quality is 10, lowest is 0
print('save path {}'.format(args.output_folder))
if __name__ == "__main__":
parser = argparse.ArgumentParser()
parser.add_argument("--config", type=str, default="")
args = parser.parse_args()
main(OmegaConf.load(args.config))
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