inference works after changes added

new branch

Stop backprop through kv_cache

Enable timestep warping & using SelfForcing scheduler

checkpoint

text preprocessing ready

fix rotary embedding

Change Wan DiT to have 0 numerical diff with SF's Wan

examples/inference/basic/basic.py

@@ -9,9 +9,9 @@ def main():
     # If a local path is provided, FastVideo will make a best effort
     # attempt to identify the optimal arguments.
     generator = VideoGenerator.from_pretrained(
-        "Wan-AI/Wan2.1-T2V-1.3B-Diffusers",
+        "Wan-AI/Wan2.1-T2V-14B-Diffusers",
         # FastVideo will automatically handle distributed setup
-        num_gpus=1,
+        num_gpus=4,
         use_fsdp_inference=True,
         dit_cpu_offload=False,
         vae_cpu_offload=False,
@@ -25,9 +25,7 @@ def main():
     # sampling_param.image_path = "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/diffusers/astronaut.jpg"
     # Generate videos with the same simple API, regardless of GPU count
     prompt = (
-        "A curious raccoon peers through a vibrant field of yellow sunflowers, its eyes "
-        "wide with interest. The playful yet serene atmosphere is complemented by soft "
-        "natural light filtering through the petals. Mid-shot, warm and cheerful tones."
+        "A watermelon wearing a helmet is crushed by a hydraulic press, causing it to flatten and burst open."
     )
     video = generator.generate_video(prompt, output_path=OUTPUT_PATH, save_video=True)
     # video = generator.generate_video(prompt, sampling_param=sampling_param, output_path="wan_t2v_videos/")
@@ -35,11 +33,7 @@ def main():
     # Generate another video with a different prompt, without reloading the
     # model!
     prompt2 = (
-        "A majestic lion strides across the golden savanna, its powerful frame "
-        "glistening under the warm afternoon sun. The tall grass ripples gently in "
-        "the breeze, enhancing the lion's commanding presence. The tone is vibrant, "
-        "embodying the raw energy of the wild. Low angle, steady tracking shot, "
-        "cinematic.")
+        "The video shows a green and orange object being flattened as if it were under a hydraulic press, with the press moving down and compressing the object")
     video2 = generator.generate_video(prompt2, output_path=OUTPUT_PATH, save_video=True)