Update app.py

app.py

@@ -9,14 +9,13 @@ SRT_FILE = "output.srt"
 FONT_SIZE = 40
 
 ffmpeg_command = [
-    "ffmpeg", 
-    "-y",  
-    "-stream_loop", "1", 
-    "-i", "background.mp4", 
-    "-i", AUDIO_FILE, 
-    "-vf", f"subtitles={SRT_FILE}:force_style='FontSize={FONT_SIZE}'",
-    "-shortest", 
-    VIDEO_FILE
+    "ffmpeg",
+    "-f", "lavfi",  # Generate video using lavfi filter
+    "-i", "color=size=720x120:rate=25:color=black",  # Black background video
+    "-i", AUDIO_FILE,  # Audio file
+    "-vf", f"subtitles={SRT_FILE}:force_style='Fontsize=70'",  # Add subtitles with font size
+    "-shortest",  # Ensure the output video length matches the shortest input (audio or video)
+    VIDEO_FILE  # Output video file
 ]
 
 async def text2video(TEXT):