Update app.py

app.py

@@ -245,7 +245,12 @@ def generate_video():
             image_path = '/home/user/app/images/avatar.jpg'
             source_image = Image.open(image_path)
             text_prompt = request.form['text_prompt']
+            
             print('Input text prompt: ',text_prompt)
+            text_prompt = text_prompt.strip()
+            if not text_prompt:
+                return jsonify({'error': 'Input text prompt cannot be blank'}), 400
+                
             voice_cloning = request.form.get('voice_cloning', 'no')
             target_language = request.form.get('target_language', 'original_text')
             print('target_language',target_language)