Initial commit

download-backend/.venv/lib/python3.12/site-packages/yt_dlp/compat/imghdr.py

@@ -0,0 +1,22 @@
+def what(file=None, h=None):
+    """Detect format of image (Currently supports jpeg, png, webp, gif only)
+    Ref: https://github.com/python/cpython/blob/3.11/Lib/imghdr.py
+    Ref: https://www.w3.org/Graphics/JPEG/itu-t81.pdf
+    """
+    if h is None:
+        with open(file, 'rb') as f:
+            h = f.read(12)
+
+    if h.startswith(b'RIFF') and h.startswith(b'WEBP', 8):
+        return 'webp'
+
+    if h.startswith(b'\x89PNG'):
+        return 'png'
+
+    if h.startswith(b'\xFF\xD8\xFF'):
+        return 'jpeg'
+
+    if h.startswith(b'GIF'):
+        return 'gif'
+
+    return None