bug fix

video_convertor.py

@@ -70,11 +70,7 @@ class VideoConverter:
     def load_video(self):
         try:
             self.video = VideoFileClip(self.input_file)
-            self.audio = self.video.audio
-            if self.audio is not None:
-                    self.audio.codec = self.video.audio.codec
-            else:
-                raise Exception("Error loading audio from video")
+            self.audio = AudioFileClip(self.input_file)
         except Exception as e:
             raise Exception(f"Error loading video: {e}")
 
@@ -94,7 +90,10 @@ class VideoConverter:
     def convert_audio(self, output_file, format):
         if format not in ['mp3', 'wav', 'ogg', 'flac', 'aac']:
             raise ValueError(f"Unsupported format: {format}")
-
+        
+        if self.audio is None:
+            raise Exception("No audio stream found in the input file")
+        
         try:
             audio_segment = AudioSegment.from_file(self.input_file, self.audio.codec)
             audio_segment.export(output_file, format=format.lower())