Use pyav to load images instead of pillow. (#13594)

On failure (ex: animated webp files) fallback to old pillow code.

This should fix the extra precision in high bit depth images (like 16 bit PNG) being discarded when loaded by Pillow and potentially add support for more image formats.

Author: comfyanonymous

nodes.py

@@ -32,7 +32,7 @@
 from comfy.comfy_types import IO, ComfyNodeABC, InputTypeDict, FileLocator
 from comfy_api.internal import register_versions, ComfyAPIWithVersion
 from comfy_api.version_list import supported_versions
-from comfy_api.latest import io, ComfyExtension
+from comfy_api.latest import io, ComfyExtension, InputImpl
 
 import comfy.clip_vision
 
@@ -1716,6 +1716,10 @@ def INPUT_TYPES(s):
     def load_image(self, image):
         image_path = folder_paths.get_annotated_filepath(image)
 
+        components = InputImpl.VideoFromFile(image_path).get_components()
+        if components.images.shape[0] > 0:
+            return (components.images, 1.0 - components.alpha[..., -1] if components.alpha is not None else torch.zeros((components.images.shape[0], 64, 64), dtype=torch.float32, device="cpu"))
+
         img = node_helpers.pillow(Image.open, image_path)
 
         output_images = []