Update app.py

app.py

@@ -24,11 +24,14 @@ st.markdown(
     .stApp {
         background-image: url("https://s29938.pcdn.co/wp-content/uploads/2019/02/Wallpaper-Kemra-WhiteSubwayTile-4-1100x1320.jpg.optimal.jpg");
         background-size: cover;
+        background-position: center;
+        background-repeat: no-repeat;
     }
     </style>
     """,
     unsafe_allow_html=True
 )
+    
 
 uploaded_file = st.file_uploader("📤 Upload a Video File", type=["mp4"])
 
@@ -85,12 +88,13 @@ if uploaded_file:
     st.write("📖 Summarizing captions using AI...")
 
     def summarize_captions(captions):
-      prompt = f"Summarize the following sequence of video frames into a meaningful story:\n\n{captions}"
+      prompt = f"Summarize the following sequence of video frames into a meaningful story under 500 characters:\n\n{captions}"
       
       completion = client.chat.completions.create(
           model="gpt-4o-mini",
           messages=[{"role": "system", "content": "You are an AI that summarizes video content."},
-                    {"role": "user", "content": prompt}]
+                    {"role": "user", "content": prompt}],
+          max_tokens=150
       )
       return completion.choices[0].message.content