allow metadata overriding

app.py

@@ -232,22 +232,19 @@ def main(file, name, fps=30, res: tuple=(1280,720), oscres=512, sr=11025, lyrics
     if img:
         cover_file = Image.open(img)
     cover_img = extract_cover_image(audio_path)
+    if img:
+        cover_img = cover_file
     if cover_img is None:
-        if img:
-            cover_img = cover_file
-        else:
-            raise gr.Error("Mp3 must have a cover image, upload the image under the 'Metadata' section", duration=None)
+        raise gr.Error("Mp3 must have a cover image, upload the image under the 'Metadata' section", duration=None)
     elif cover_img == -1 and not (tit or ast or img):
-        if not img:
-            raise gr.Error("Mp3 is missing tags, add the info under the 'Metadata' section", duration=None)
+        raise gr.Error("Mp3 is missing tags, add the info under the 'Metadata' section", duration=None)
     
     title, artist = getTitleAndArtist(audio_path) 
+    if tit and ast:
+        title, artist = tit, ast
     if title == '' or artist == '':
-        if not (tit or ast):
-            gr.Warning('Missing Title or Artist')
-        else:
-            title, artist = tit, ast
-    if img and cover_img == -1:
+        gr.Warning('Missing Title or Artist')
+    if img:
         color_thief = ColorThief(img)
         dominant_color = color_thief.get_color(quality=1)
         cover_img = cover_file