remove some unnecessary if conditions

Former-commit-id: de06e2678e2168586614242f65939c5772e78774

src/llamafactory/chat/hf_engine.py

@@ -168,7 +168,7 @@ class HuggingfaceEngine(BaseEngine):
         for key, value in mm_inputs.items():
             value = value if isinstance(value, torch.Tensor) else torch.tensor(value)
             gen_kwargs[key] = value.to(model.device)
-
+            
         return gen_kwargs, prompt_length
 
     @staticmethod

src/llamafactory/data/mm_plugin.py

@@ -325,6 +325,14 @@ class PaliGemmaPlugin(BasePlugin):
         return mm_inputs
 
 class PixtralPlugin(BasePlugin):
+    # @override
+    # def _preprocess_image(self, image: "ImageObject", **kwargs) -> "ImageObject":
+    #     image = super()._preprocess_image(image, **kwargs)
+    #     UP_SIZE = (512,512)
+    #     image = image.resize(UP_SIZE, resample=Image.NEAREST)
+
+    #     return image
+    
     @override
     def process_messages(
         self,
@@ -340,15 +348,22 @@ class PixtralPlugin(BasePlugin):
 
         self._validate_input(images, videos)
         num_image_tokens = 0
-        image_input_sizes = self._get_mm_inputs(images, videos, processor)["image_sizes"]
+        img_kwargs = self._get_mm_inputs(images, videos, processor)
+        image_input_sizes = None
+
+        if img_kwargs.get("pixel_values") is not None:
+            image_input_sizes = img_kwargs["image_sizes"]
+
         messages = deepcopy(messages)
-        print(image_input_sizes[0], messages)
         for message in messages:
             content = message["content"]
             img_id = 0
             while IMAGE_PLACEHOLDER in content:
-                # only support one image for one time?
-                image_size =  image_input_sizes[0][0]
+
+                if image_input_sizes is None:
+                    raise ValueError("The number of images does not match the number of {} tokens".format(IMAGE_PLACEHOLDER))
+                
+                image_size =  image_input_sizes[0][img_id]
                 height, width = image_size
                 num_height_tokens = height // patch_size
                 num_width_tokens = width // patch_size
@@ -359,7 +374,7 @@ class PixtralPlugin(BasePlugin):
                 replace_tokens = [item for sublist in replace_tokens for item in sublist]
                 replace_tokens[-1] = image_end_token
                 replace_str = "".join(replace_tokens)
-                content.replace(IMAGE_PLACEHOLDER, replace_str, 1)
+                content = content.replace(IMAGE_PLACEHOLDER, replace_str, 1)
 
                 img_id += 1
                 num_image_tokens += 1
@@ -383,7 +398,16 @@ class PixtralPlugin(BasePlugin):
     ) -> Dict[str, Union[List[int], "torch.Tensor"]]:
         
         self._validate_input(images, videos)
-        return self._get_mm_inputs(images, videos, processor)
+        mm_inputs = self._get_mm_inputs(images, videos, processor)
+        if mm_inputs.get('image_sizes'):
+            del mm_inputs['image_sizes']
+            # TODO fix this type error
+            # if isinstance(mm_inputs.get("pixel_values"), list): #List[List[torch.tensor]] -> [B C W H]
+            # recommend for batch==1 for one gpu or it will rise the error of BatchEncoding.
+            mm_inputs["pixel_values"] = mm_inputs.get("pixel_values")[0][0].unsqueeze(0)
+        # mm_inputs["pixel_values"] = mm_inputs.get("pixel_values")
+
+        return mm_inputs
 
 class Qwen2vlPlugin(BasePlugin):
     @override

src/llamafactory/extras/constants.py

@@ -917,16 +917,6 @@ register_model_group(
     template="mistral",
 )
 
-register_model_group(
-    models={
-        "Pixtral-12B-2409": {
-            DownloadSource.DEFAULT: "mistral-community/pixtral-12b",
-            DownloadSource.MODELSCOPE: "AI-ModelScope/pixtral-12b",
-        }
-    },
-    template="mistral"
-)
-
 
 register_model_group(
     models={
@@ -1067,6 +1057,18 @@ register_model_group(
 )
 
 
+register_model_group(
+    models={
+        "Pixtral-12B-2409": {
+            DownloadSource.DEFAULT: "mistral-community/pixtral-12b",
+            DownloadSource.MODELSCOPE: "AI-ModelScope/pixtral-12b",
+        }
+    },
+    template="mistral",
+    vision=True
+)
+
+
 register_model_group(
     models={
         "Qwen-1.8B": {