[AnimateDiff+Controlnet] Fix multicontrolnet support (#6551)

* fix multicontrolnet support

* update README with multicontrolnet example

examples/community/README.md

@@ -2989,7 +2989,7 @@ pipe = DiffusionPipeline.from_pretrained(
     custom_pipeline="pipeline_animatediff_controlnet",
 ).to(device="cuda", dtype=torch.float16)
 pipe.scheduler = DPMSolverMultistepScheduler.from_pretrained(
-    model_id, subfolder="scheduler", clip_sample=False, timestep_spacing="linspace", steps_offset=1
+    model_id, subfolder="scheduler", clip_sample=False, timestep_spacing="linspace", steps_offset=1, beta_schedule="linear",
 )
 pipe.enable_vae_slicing()
 
@@ -3005,7 +3005,7 @@ result = pipe(
     width=512,
     height=768,
     conditioning_frames=conditioning_frames,
-    num_inference_steps=12,
+    num_inference_steps=20,
 ).frames[0]
 
 from diffusers.utils import export_to_gif
@@ -3029,6 +3029,79 @@ export_to_gif(result.frames[0], "result.gif")
   </tr>
 </table>
 
+You can also use multiple controlnets at once!
+
+```python
+import torch
+from diffusers import AutoencoderKL, ControlNetModel, MotionAdapter
+from diffusers.pipelines import DiffusionPipeline
+from diffusers.schedulers import DPMSolverMultistepScheduler
+from PIL import Image
+
+motion_id = "guoyww/animatediff-motion-adapter-v1-5-2"
+adapter = MotionAdapter.from_pretrained(motion_id)
+controlnet1 = ControlNetModel.from_pretrained("lllyasviel/control_v11p_sd15_openpose", torch_dtype=torch.float16)
+controlnet2 = ControlNetModel.from_pretrained("lllyasviel/sd-controlnet-canny", torch_dtype=torch.float16)
+vae = AutoencoderKL.from_pretrained("stabilityai/sd-vae-ft-mse", torch_dtype=torch.float16)
+
+model_id = "SG161222/Realistic_Vision_V5.1_noVAE"
+pipe = DiffusionPipeline.from_pretrained(
+    model_id,
+    motion_adapter=adapter,
+    controlnet=[controlnet1, controlnet2],
+    vae=vae,
+    custom_pipeline="pipeline_animatediff_controlnet",
+).to(device="cuda", dtype=torch.float16)
+pipe.scheduler = DPMSolverMultistepScheduler.from_pretrained(
+    model_id, subfolder="scheduler", clip_sample=False, timestep_spacing="linspace", steps_offset=1, beta_schedule="linear",
+)
+pipe.enable_vae_slicing()
+
+def load_video(file_path: str):
+    images = []
+
+    if file_path.startswith(('http://', 'https://')):
+        # If the file_path is a URL
+        response = requests.get(file_path)
+        response.raise_for_status()
+        content = BytesIO(response.content)
+        vid = imageio.get_reader(content)
+    else:
+        # Assuming it's a local file path
+        vid = imageio.get_reader(file_path)
+
+    for frame in vid:
+        pil_image = Image.fromarray(frame)
+        images.append(pil_image)
+
+    return images
+
+video = load_video("dance.gif")
+
+# You need to install it using `pip install controlnet_aux`
+from controlnet_aux.processor import Processor
+
+p1 = Processor("openpose_full")
+cn1 = [p1(frame) for frame in video]
+
+p2 = Processor("canny")
+cn2 = [p2(frame) for frame in video]
+
+prompt = "astronaut in space, dancing"
+negative_prompt = "bad quality, worst quality, jpeg artifacts, ugly"
+result = pipe(
+    prompt=prompt,
+    negative_prompt=negative_prompt,
+    width=512,
+    height=768,
+    conditioning_frames=[cn1, cn2],
+    num_inference_steps=20,
+)
+
+from diffusers.utils import export_to_gif
+export_to_gif(result.frames[0], "result.gif")
+```
+
 ### DemoFusion
 
 This pipeline is the official implementation of [DemoFusion: Democratising High-Resolution Image Generation With No $$$](https://arxiv.org/abs/2311.16973).

examples/community/pipeline_animatediff_controlnet.py

@@ -14,7 +14,7 @@
 
 import inspect
 from dataclasses import dataclass
-from typing import Any, Callable, Dict, List, Optional, Union
+from typing import Any, Callable, Dict, List, Optional, Tuple, Union
 
 import numpy as np
 import torch
@@ -66,7 +66,7 @@ EXAMPLE_DOC_STRING = """
         ...     custom_pipeline="pipeline_animatediff_controlnet",
         ... ).to(device="cuda", dtype=torch.float16)
         >>> pipe.scheduler = DPMSolverMultistepScheduler.from_pretrained(
-        ...     model_id, subfolder="scheduler", clip_sample=False, timestep_spacing="linspace", steps_offset=1
+        ...     model_id, subfolder="scheduler", clip_sample=False, timestep_spacing="linspace", steps_offset=1, beta_schedule="linear",
         ... )
         >>> pipe.enable_vae_slicing()
 
@@ -83,7 +83,7 @@ EXAMPLE_DOC_STRING = """
         ...     height=768,
         ...     conditioning_frames=conditioning_frames,
         ...     num_inference_steps=12,
-        ... ).frames[0]
+        ... )
 
         >>> from diffusers.utils import export_to_gif
         >>> export_to_gif(result.frames[0], "result.gif")
@@ -151,7 +151,7 @@ class AnimateDiffControlNetPipeline(DiffusionPipeline, TextualInversionLoaderMix
         tokenizer: CLIPTokenizer,
         unet: UNet2DConditionModel,
         motion_adapter: MotionAdapter,
-        controlnet: Union[ControlNetModel, MultiControlNetModel],
+        controlnet: Union[ControlNetModel, List[ControlNetModel], Tuple[ControlNetModel], MultiControlNetModel],
         scheduler: Union[
             DDIMScheduler,
             PNDMScheduler,
@@ -166,6 +166,9 @@ class AnimateDiffControlNetPipeline(DiffusionPipeline, TextualInversionLoaderMix
         super().__init__()
         unet = UNetMotionModel.from_unet2d(unet, motion_adapter)
 
+        if isinstance(controlnet, (list, tuple)):
+            controlnet = MultiControlNetModel(controlnet)
+
         self.register_modules(
             vae=vae,
             text_encoder=text_encoder,
@@ -488,6 +491,7 @@ class AnimateDiffControlNetPipeline(DiffusionPipeline, TextualInversionLoaderMix
         prompt,
         height,
         width,
+        num_frames,
         callback_steps,
         negative_prompt=None,
         prompt_embeds=None,
@@ -557,31 +561,21 @@ class AnimateDiffControlNetPipeline(DiffusionPipeline, TextualInversionLoaderMix
             or is_compiled
             and isinstance(self.controlnet._orig_mod, ControlNetModel)
         ):
-            if isinstance(image, list):
-                for image_ in image:
-                    self.check_image(image_, prompt, prompt_embeds)
-            else:
-                self.check_image(image, prompt, prompt_embeds)
+            if not isinstance(image, list):
+                raise TypeError(f"For single controlnet, `image` must be of type `list` but got {type(image)}")
+            if len(image) != num_frames:
+                raise ValueError(f"Excepted image to have length {num_frames} but got {len(image)=}")
         elif (
             isinstance(self.controlnet, MultiControlNetModel)
             or is_compiled
             and isinstance(self.controlnet._orig_mod, MultiControlNetModel)
         ):
-            if not isinstance(image, list):
-                raise TypeError("For multiple controlnets: `image` must be type `list`")
-
-            # When `image` is a nested list:
-            # (e.g. [[canny_image_1, pose_image_1], [canny_image_2, pose_image_2]])
-            elif any(isinstance(i, list) for i in image):
-                raise ValueError("A single batch of multiple conditionings are supported at the moment.")
-            elif len(image) != len(self.controlnet.nets):
-                raise ValueError(
-                    f"For multiple controlnets: `image` must have the same length as the number of controlnets, but got {len(image)} images and {len(self.controlnet.nets)} ControlNets."
-                )
-
-            for control_ in image:
-                for image_ in control_:
-                    self.check_image(image_, prompt, prompt_embeds)
+            if not isinstance(image, list) or not isinstance(image[0], list):
+                raise TypeError(f"For multiple controlnets: `image` must be type list of lists but got {type(image)=}")
+            if len(image[0]) != num_frames:
+                raise ValueError(f"Expected length of image sublist as {num_frames} but got {len(image[0])=}")
+            if any(len(img) != len(image[0]) for img in image):
+                raise ValueError("All conditioning frame batches for multicontrolnet must be same size")
         else:
             assert False
 
@@ -913,6 +907,7 @@ class AnimateDiffControlNetPipeline(DiffusionPipeline, TextualInversionLoaderMix
             prompt=prompt,
             height=height,
             width=width,
+            num_frames=num_frames,
             callback_steps=callback_steps,
             negative_prompt=negative_prompt,
             callback_on_step_end_tensor_inputs=callback_on_step_end_tensor_inputs,
@@ -1000,9 +995,7 @@ class AnimateDiffControlNetPipeline(DiffusionPipeline, TextualInversionLoaderMix
                     do_classifier_free_guidance=self.do_classifier_free_guidance,
                     guess_mode=guess_mode,
                 )
-
                 cond_prepared_frames.append(prepared_frame)
-
             conditioning_frames = cond_prepared_frames
         else:
             assert False