Update app.py

app.py

@@ -6,14 +6,18 @@ def download_youtube_video(youtube_url):
     """Downloads a YouTube video using yt_dlp and returns the downloaded file path."""
     try:
         ydl_opts = {
-            'format': 'best',
+            'format': 'bestvideo[ext=mp4]+bestaudio[ext=m4a]/best[ext=mp4]/best',
             'outtmpl': '%(title)s.%(ext)s',
+            'postprocessors': [{
+                'key': 'FFmpegVideoConvertor',
+                'preferedformat': 'mp4',
+            }],
         }
 
         with youtube_dl.YoutubeDL(ydl_opts) as ydl:
             result = ydl.extract_info(youtube_url, download=True)
             video_title = result.get('title', None)
-            video_ext = result.get('ext', None)
+            video_ext = 'mp4'  # We're forcing mp4 format
             downloaded_file = f"{video_title}.{video_ext}"
             return downloaded_file
 
@@ -24,17 +28,23 @@ def download_youtube_video(youtube_url):
 def app(video_link):
     video_path = download_youtube_video(video_link)
     if video_path:
-        return video_path
+        return gr.File.update(value=video_path, visible=True), gr.Markdown.update(visible=False)
     else:
-        return "An error occurred during the download."
+        return gr.File.update(value=None, visible=False), gr.Markdown.update(visible=True, value="Download failed. Please check the URL and try again.")
 
 with gr.Blocks() as interface:
     gr.Markdown("## YouTube Video Downloader")
     video_link = gr.Textbox(label="Enter YouTube link 🔗 To Download Video⬇️")
     download_button = gr.Button("Download")
-    output = gr.File(label="Downloaded Video Path")
+    output = gr.File(label="Downloaded Video", visible=False)
+    error_message = gr.Markdown(visible=False)
 
-    download_button.click(fn=app, inputs=video_link, outputs=output)
+    download_button.click(
+        fn=app,
+        inputs=video_link,
+        outputs=[output, error_message],
+        api_name="download"
+    )
 
 if __name__ == "__main__":
-    interface.launch(debug=True)
+    interface.launch(debug=True)