update app.py

app.py

@@ -162,7 +162,7 @@ def main(file, name, fps=30, res: tuple=(1280,720), oscres=512, sr=11025, lyrics
     p = gr.Progress()
     if os.path.exists("out.srt"):
         os.remove("out.srt")
-    lyrics = False
+    haslyrics = False
     if lyrics:
         p(0.5,"parsing lyrics")
         try:
@@ -172,11 +172,11 @@ def main(file, name, fps=30, res: tuple=(1280,720), oscres=512, sr=11025, lyrics
                 gr.Info("Lyrics of LRC type was detected, converting to SRT")
                 LRC2SRT.convert_to_srt(sf)
                 outf.write('\n'.join(LRC2SRT.SRT))
-                lyrics = True
+                haslyrics = True
             elif sf[0].isdigit():
                 outf.write(sf)
                 gr.Info("Lyrics of SRT type was detected")
-                lyrics = True
+                haslyrics = True
             else:
                 gr.Warning("Lyrics file is invalid, skipping")
         except:
@@ -230,7 +230,7 @@ def main(file, name, fps=30, res: tuple=(1280,720), oscres=512, sr=11025, lyrics
     p = gr.Progress()
     p(0.5,desc="Compiling video")
     print('FFMPEG')
-    if lyrics:
+    if haslyrics:
         ffmpeg_cmd = [
             "ffmpeg",
             '-framerate', '30',