fix: audio_uploader.upload_cover

feat: Picture.resize

bilibili_api/audio_uploader.py

@@ -825,10 +825,10 @@ async def upload_cover(cover: Picture, credential: Credential) -> str:
     """
     api = _API["image"]
     # 小于 3MB
-    raise_for_statement(os.path.getsize(cover) < 1024 * 1024 * 3, "3MB size limit")
+    raise_for_statement(len(cover.content) < 1024 * 1024 * 3, "3MB size limit")
     # 宽高比 1:1
     raise_for_statement(
-        cover.width == cover.height, "width == height, 600 * 600 recommanded"
+        cover.width == cover.height, "width == height, 600 * 600 recommended"
     )
-    files = {"file": cover.content}
+    files = {"file": cover._to_biliapifile()}
     return await Api(**api, credential=credential).update_files(**files).result

bilibili_api/utils/picture.py

@@ -20,7 +20,7 @@ class Picture:
 
         imageType (str)  : 格式，例如: png
 
-        size      (Any)  : 尺寸
+        size      (Any)  : 大小。单位 KB
 
         url       (str)  : 图片链接
 
@@ -188,6 +188,29 @@ def convert_format(self, new_format: str) -> "Picture":
         self.__set_picture_meta_from_bytes(new_format)
         return self
 
+    def resize(self, width: int, height: int) -> "Picture":
+        """
+        调整大小
+
+        Args:
+            width  (int): 宽度
+            height (int): 高度
+
+        Returns:
+            Picture: `self`
+        """
+        tmp_dir = tempfile.gettempdir()
+        img_path = os.path.join(tmp_dir, "test." + self.imageType)
+        open(img_path, "wb").write(self.content)
+        img = Image.open(img_path)
+        img = img.resize((width, height))
+        new_img_path = os.path.join(tmp_dir, "test." + self.imageType)
+        img.save(new_img_path)
+        with open(new_img_path, "rb") as file:
+            self.content = file.read()
+        self.__set_picture_meta_from_bytes(self.imageType)
+        return self
+
     def to_file(self, path: str) -> "Picture":
         """
         下载图片至本地。