Update app.py

app.py

@@ -457,17 +457,51 @@ class ImageScraper:
             return False
 
     def generate_fallback_audio(self, script: str) -> AudioFileClip:
-        """Generate fallback audio using gTTS"""
+        """Generate fallback audio using gTTS with improved error handling"""
         try:
             audio_path = self.temp_dir / "voice.mp3"
-            tts = gTTS(text=script, lang='en', slow=False)
-            tts.save(str(audio_path))
+            
+            # Split long text into chunks to avoid gTTS limitations
+            max_chars = 5000
+            text_chunks = [script[i:i+max_chars] for i in range(0, len(script), max_chars)]
+            
+            # Create temporary files for each chunk
+            temp_files = []
+            for i, chunk in enumerate(text_chunks):
+                temp_path = self.temp_dir / f"voice_chunk_{i}.mp3"
+                tts = gTTS(text=chunk, lang='en', slow=False)
+                tts.save(str(temp_path))
+                temp_files.append(temp_path)
+            
+            # Concatenate audio files if there are multiple chunks
+            if len(temp_files) > 1:
+                clips = [AudioFileClip(str(f)) for f in temp_files]
+                final_clip = concatenate_audioclips(clips)
+                final_clip.write_audiofile(str(audio_path), codec='mp3')
+                final_clip.close()
+                for clip in clips:
+                    clip.close()
+            else:
+                # Just rename the single chunk file
+                os.rename(temp_files[0], audio_path)
+            
+            # Clean up temporary files
+            for temp_file in temp_files:
+                if temp_file.exists():
+                    temp_file.unlink()
+            
+            # Verify the audio file
+            if not audio_path.exists() or audio_path.stat().st_size == 0:
+                raise Exception("Audio file generation failed")
+                
             return AudioFileClip(str(audio_path))
+            
         except Exception as e:
-            print(f"Fallback audio generation failed: {e}")
-            # Create silent audio clip
-            return AudioFileClip(str(audio_path)) if os.path.exists(str(audio_path)) else None
-
+            logging.error(f"Audio generation failed: {str(e)}")
+            # Create a silent audio clip as last resort
+            silence_duration = len(script.split()) / 3  # Approximate duration based on words
+            return AudioFileClip(duration=silence_duration)
+    
     def scrape_pexels(self, query: str) -> List[str]:
         urls = []
         try:
@@ -518,16 +552,50 @@ class EnhancedVideoGenerator:
 
 
     def generate_fallback_audio(self, script: str) -> AudioFileClip:
-        """Generate fallback audio using gTTS"""
+        """Generate fallback audio using gTTS with improved error handling"""
         try:
             audio_path = self.temp_dir / "voice.mp3"
-            tts = gTTS(text=script, lang='en', slow=False)
-            tts.save(str(audio_path))
+            
+            # Split long text into chunks to avoid gTTS limitations
+            max_chars = 5000
+            text_chunks = [script[i:i+max_chars] for i in range(0, len(script), max_chars)]
+            
+            # Create temporary files for each chunk
+            temp_files = []
+            for i, chunk in enumerate(text_chunks):
+                temp_path = self.temp_dir / f"voice_chunk_{i}.mp3"
+                tts = gTTS(text=chunk, lang='en', slow=False)
+                tts.save(str(temp_path))
+                temp_files.append(temp_path)
+            
+            # Concatenate audio files if there are multiple chunks
+            if len(temp_files) > 1:
+                clips = [AudioFileClip(str(f)) for f in temp_files]
+                final_clip = concatenate_audioclips(clips)
+                final_clip.write_audiofile(str(audio_path), codec='mp3')
+                final_clip.close()
+                for clip in clips:
+                    clip.close()
+            else:
+                # Just rename the single chunk file
+                os.rename(temp_files[0], audio_path)
+            
+            # Clean up temporary files
+            for temp_file in temp_files:
+                if temp_file.exists():
+                    temp_file.unlink()
+            
+            # Verify the audio file
+            if not audio_path.exists() or audio_path.stat().st_size == 0:
+                raise Exception("Audio file generation failed")
+                
             return AudioFileClip(str(audio_path))
+            
         except Exception as e:
-            print(f"Fallback audio generation failed: {e}")
-            # Create silent audio clip
-            return AudioFileClip(str(audio_path)) if os.path.exists(str(audio_path)) else None
+            logging.error(f"Audio generation failed: {str(e)}")
+            # Create a silent audio clip as last resort
+            silence_duration = len(script.split()) / 3  # Approximate duration based on words
+            return AudioFileClip(duration=silence_duration)
     
     def apply_video_effects(self, frame: np.ndarray, effect_params: dict) -> np.ndarray:
         """Apply various video effects to a frame"""