[WIP]Vae preprocessor refactor (PR1)

src/diffusers/pipelines/alt_diffusion/pipeline_alt_diffusion_img2img.py

@@ -69,6 +69,11 @@
 
 # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.preprocess
 def preprocess(image):
+    warnings.warn(
+        "The preprocess method is deprecated and will be removed in a future version. Please"
+        " use VaeImageProcessor.preprocess instead",
+        FutureWarning,
+    )
     if isinstance(image, torch.Tensor):
         return image
     elif isinstance(image, PIL.Image.Image):

src/diffusers/pipelines/repaint/pipeline_repaint.py

@@ -13,6 +13,7 @@
 # limitations under the License.
 
 
+import warnings
 from typing import List, Optional, Tuple, Union
 
 import numpy as np
@@ -30,6 +31,11 @@
 
 # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.preprocess
 def _preprocess_image(image: Union[List, PIL.Image.Image, torch.Tensor]):
+    warnings.warn(
+        "The preprocess method is deprecated and will be removed in a future version. Please"
+        " use VaeImageProcessor.preprocess instead",
+        FutureWarning,
+    )
     if isinstance(image, torch.Tensor):
         return image
     elif isinstance(image, PIL.Image.Image):

src/diffusers/pipelines/stable_diffusion/pipeline_cycle_diffusion.py

@@ -40,6 +40,11 @@
 
 # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.preprocess
 def preprocess(image):
+    warnings.warn(
+        "The preprocess method is deprecated and will be removed in a future version. Please"
+        " use VaeImageProcessor.preprocess instead",
+        FutureWarning,
+    )
     if isinstance(image, torch.Tensor):
         return image
     elif isinstance(image, PIL.Image.Image):

src/diffusers/pipelines/stable_diffusion/pipeline_onnx_stable_diffusion_img2img.py

@@ -13,6 +13,7 @@
 # limitations under the License.
 
 import inspect
+import warnings
 from typing import Callable, List, Optional, Union
 
 import numpy as np
@@ -33,6 +34,13 @@
 
 # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.preprocess with 8->64
 def preprocess(image):
+    warnings.warn(
+        (
+            "The preprocess method is deprecated and will be removed in a future version. Please"
+            " use VaeImageProcessor.preprocess instead"
+        ),
+        FutureWarning,
+    )
     if isinstance(image, torch.Tensor):
         return image
     elif isinstance(image, PIL.Image.Image):

src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_depth2img.py

@@ -37,6 +37,11 @@
 
 # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.preprocess
 def preprocess(image):
+    warnings.warn(
+        "The preprocess method is deprecated and will be removed in a future version. Please"
+        " use VaeImageProcessor.preprocess instead",
+        FutureWarning,
+    )
     if isinstance(image, torch.Tensor):
         return image
     elif isinstance(image, PIL.Image.Image):

src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_diffedit.py

@@ -159,6 +159,11 @@ def kl_divergence(hidden_states):
 
 # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.preprocess
 def preprocess(image):
+    warnings.warn(
+        "The preprocess method is deprecated and will be removed in a future version. Please"
+        " use VaeImageProcessor.preprocess instead",
+        FutureWarning,
+    )
     if isinstance(image, torch.Tensor):
         return image
     elif isinstance(image, PIL.Image.Image):

src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_img2img.py

@@ -73,6 +73,11 @@
 
 
 def preprocess(image):
+    warnings.warn(
+        "The preprocess method is deprecated and will be removed in a future version. Please"
+        " use VaeImageProcessor.preprocess instead",
+        FutureWarning,
+    )
     if isinstance(image, torch.Tensor):
         return image
     elif isinstance(image, PIL.Image.Image):
@@ -441,6 +446,7 @@ def _encode_prompt(
 
         return prompt_embeds
 
+    # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.run_safety_checker
     def run_safety_checker(self, image, device, dtype):
         if self.safety_checker is None:
             has_nsfw_concept = None
@@ -455,6 +461,7 @@ def run_safety_checker(self, image, device, dtype):
             )
         return image, has_nsfw_concept
 
+    # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion.StableDiffusionPipeline.decode_latents
     def decode_latents(self, latents):
         warnings.warn(
             "The decode_latents method is deprecated and will be removed in a future version. Please"

src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_instruct_pix2pix.py

@@ -43,6 +43,11 @@
 
 # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.preprocess
 def preprocess(image):
+    warnings.warn(
+        "The preprocess method is deprecated and will be removed in a future version. Please"
+        " use VaeImageProcessor.preprocess instead",
+        FutureWarning,
+    )
     if isinstance(image, torch.Tensor):
         return image
     elif isinstance(image, PIL.Image.Image):

src/diffusers/pipelines/stable_diffusion/pipeline_stable_diffusion_pix2pix_zero.py

@@ -177,6 +177,11 @@ class Pix2PixInversionPipelineOutput(BaseOutput, TextualInversionLoaderMixin):
 
 # Copied from diffusers.pipelines.stable_diffusion.pipeline_stable_diffusion_img2img.preprocess
 def preprocess(image):
+    warnings.warn(
+        "The preprocess method is deprecated and will be removed in a future version. Please"
+        " use VaeImageProcessor.preprocess instead",
+        FutureWarning,
+    )
     if isinstance(image, torch.Tensor):
         return image
     elif isinstance(image, PIL.Image.Image):