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,
                },
            },
        },
    )

    prompt = (
        "A high-definition video captures the precision of robotic welding in an industrial setting. "
        "The first frame showcases a robotic arm, equipped with a welding torch, positioned over a large metal structure. "
        "The welding process is in full swing, with bright sparks and intense light illuminating the scene, "
        "creating a vivid display of blue and white hues. "
        "A significant amount of smoke billows around the welding area, partially obscuring the view but emphasizing the heat and activity. "
        "The background reveals parts of the workshop environment, including a ventilation system and various pieces of machinery, "
        "indicating a busy and functional industrial workspace. "
        "As the video progresses, the robotic arm maintains its steady position, continuing the welding process and moving to its left. "
        "The welding torch consistently emits sparks and light, and the smoke continues to rise, diffusing slightly as it moves upward. "
        "The metal surface beneath the torch shows ongoing signs of heating and melting. "
        "The scene retains its industrial ambiance, with the welding sparks and smoke dominating the visual field, "
        "underscoring the ongoing nature of the welding operation.")

    generator.generate({
        "prompt": prompt,
        "output": {"output_path": "outputs_video/cosmos2_5_t2w.mp4", "save_video": True},
    })

    generator.shutdown()


if __name__ == "__main__":
    main()