fix(api): download video formats

examples/python-starters/05-video-downloader/main.py

@@ -1,38 +1,71 @@
 import os
-import sys
 import re
+import sys
 import yt_dlp
 
-def video_downloader():
-    url_pattern = re.compile(r'^https?://[^\s/$.?#].[^\s]*$')
+url_pattern = re.compile(r'^https?://[^\s/$.?#].[^\s]*$')
 
+def get_user_input_url():
     while True:
         video_url = input("Video URL: ")
-
         if url_pattern.match(video_url):
-            break
+            return video_url
         else:
             print('\nError: Invalid URL Format')
 
+def format_selector(ctx):
+    formats = ctx.get('formats')[::-1]
+    best_video = next(f for f in formats if f['vcodec'] != 'none' and f['acodec'] == 'none')
+    audio_ext = {'mp4': 'm4a', 'webm': 'webm'}[best_video['ext']]
+    best_audio = next(f for f in formats if (
+        f['acodec'] != 'none' and f['vcodec'] == 'none' and f['ext'] == audio_ext))
+
+    yield {
+        'format_id': f'{best_video["format_id"]}+{best_audio["format_id"]}',
+        'ext': best_video['ext'],
+        'requested_formats': [best_video, best_audio],
+        'protocol': f'{best_video["protocol"]}+{best_audio["protocol"]}'
+    }
+
+def progress_hook(d):
+    if d['status'] == 'finished':
+        print('\nDownload success!')
+        print('\Processing ...')
+
+def video_downloader():
+    user_url = get_user_input_url()
+    downloads_folder = 'downloads'
     try:
-        os.makedirs('downloads', exist_ok=True)
+        os.makedirs(downloads_folder, exist_ok=True)
     except OSError:
         print("Error creating the 'downloads' directory.")
         sys.exit()
 
-    ydl_opts = {'outtmpl': 'downloads/' + '%(title)s.%(ext)s'}
+    ydl_opts = {
+        'format': format_selector,
+        'outtmpl': os.path.join(downloads_folder, '%(title)s.%(ext)s'),  # Save in 'downloads' folder
+        'progress_hooks': [progress_hook],  # Add the progress hook
+    }
 
     with yt_dlp.YoutubeDL(ydl_opts) as ydl:
-        ydl.download([video_url])
+        try:
+            ydl.download([user_url])
+        except Exception as e:
+            print(f"Error downloading video: {e}")
 
 def main():
     os.system('cls' if os.name == 'nt' else 'clear')
     app_name = 'Video Downloader'
-    print(f'{"-" * 48}\n{" " * 12}{app_name}{" " * 12}\n{"-" * 48}')
+    border_length = len(app_name) + 4
+    print("+" + "-" * (border_length - 2) + "+")
+    print(f" {app_name} ")
+    print("+" + "-" * (border_length - 2) + "+")
+    print()
+
     video_downloader()
 
     while True:
-        response = input('\nDo you want to continue? (Y/N) ')
+        response = input('\nDownload another? (Y/N) ')
         if response.lower() == 'y':
             main()
         elif response.lower() == 'n':
@@ -42,4 +75,4 @@ def main():
             print('\nError: Please select Y or N.\n')
 
 if __name__ == '__main__':
-    main()
+    main()