# SPDX-License-Identifier: Apache-2.0
from fastvideo import VideoGenerator


def main():
    # Point this to your local diffusers model dir (or replace with a HF model ID).
    model_path = "KyleShao/Cosmos-Predict2.5-2B-Diffusers"

    generator = VideoGenerator.from_pretrained(
        model_path,
        {
            "engine": {
                "num_gpus": 1,
                "use_fsdp_inference": False,  # set True if GPU is out of memory
                "offload": {
                    "dit": False,
                    "vae": False,
                    "text_encoder": True,
                    "pin_cpu_memory": True,
                },
            },
        },
    )

    # video2world example from official repo
    video_path = "assets/videos/robot_pouring.mp4"

    prompt = (
        "A robotic arm, primarily white with black joints and cables, is shown in a clean, modern indoor setting with a white tabletop. "
        "The arm, equipped with a gripper holding a small, light green pitcher, is positioned above a clear glass containing a reddish-brown liquid and a spoon. "
        "The robotic arm is in the process of pouring a transparent liquid into the glass. "
        "To the left of the pitcher, there is an opened jar with a similar reddish-brown substance visible through its transparent body. "
        "In the background, a vase with white flowers and a brown couch are partially visible, adding to the contemporary ambiance. "
        "The lighting is bright, casting soft shadows on the table. "
        "The robotic arm's movements are smooth and controlled, demonstrating precision in its task. "
        "As the video progresses, the robotic arm completes the pour, leaving the glass half-filled with the reddish-brown liquid. "
        "The jar remains untouched throughout the sequence, and the spoon inside the glass remains stationary. "
        "The other robotic arm on the right side also stays stationary throughout the video. "
        "The final frame captures the robotic arm with the pitcher finishing the pour, with the glass now filled to a higher level, while the pitcher is slightly tilted but still held securely by the gripper."
    )

    generator.generate({
        "prompt": prompt,
        "inputs": {"video_path": str(video_path)},
        "output": {"output_path": "outputs_video/cosmos2_5_v2w.mp4", "save_video": True},
        "extensions": {"num_cond_frames": 1},
    })

    generator.shutdown()


if __name__ == "__main__":
    main()