[don't merge] open-sora test pipeline

[patil-suraj]

What does this PR do?

A test implementation for open-sora.

pip install git+https://github.com/huggingface/diffusers.git@st-dit

import torch

from diffusers import OpenSoraPipeline
from diffusers.utils import export_to_gif

pipe = OpenSoraPipeline.from_pretrained("diffusers/open-sora-pipe-test", torch_dtype=torch.float16)
pipe.enable_model_cpu_offload()

prompt = "A serene underwater scene featuring a sea turtle swimming through a coral reef. The turtle, with its greenish-brown shell, is the main focus of the video, swimming gracefully towards the right side of the frame. The coral reef, teeming with life, is visible in the background, providing a vibrant and colorful backdrop to the turtle's journey. Several small fish, darting around the turtle, add a sense of movement and dynamism to the scene."

frames = pipe(prompt, decode_chunk_size=4, num_inference_steps=50, guidance_scale=5.0).frames[0]
export_to_gif(frames, "gen.gif", fps=8)

[HuggingFaceDocBuilderDev]

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