support LTX-video

[eaidova]

What does this PR do?

from diffusers.utils import export_to_video

from optimum.intel.openvino import OVDiffusionPipeline


pipe = OVDiffusionPipeline.from_pretrained("Lightricks/LTX-Video")

prompt = "The camera pans across a cityscape of tall buildings...The camera pans across a cityscape of tall buildings with a circular building in the center. The camera moves from left to right, showing the tops of the buildings and the circular building in the center. The buildings are various shades of gray and white, and the circular building has a green roof. The camera angle is high, looking down at the city. The lighting is bright, with the sun shining from the upper left, casting shadows from the buildings. The scene is computer-generated imagery."
negative_prompt = "worst quality, inconsistent motion, blurry, jittery, distorted"

video = pipe(
    prompt=prompt,
    negative_prompt=negative_prompt,
    width=704,
    height=480,
    num_frames=48,
    num_inference_steps=50,
).frames[0]
export_to_video(video, "output.mp4", fps=24)

Before submitting

• This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
• Did you make sure to update the documentation with your changes?
• Did you write any new necessary tests?

[HuggingFaceDocBuilderDev]

The docs for this PR live here. All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.

[IlyasMoutawwakil]

LGTM! Thanks @eaidova
left a couple comments but otherwise looks great.