Update app.py

app.py

@@ -1683,43 +1683,30 @@ def main():
                                 # Offer download of processed video
                                 st.success("Video processing complete!")
                                 st.download_button(
-                                    label="Download Processed Video",
+                                    label="⬇️ Download Processed Video",
                                     data=processed_video,
                                     file_name=f"processed_{uploaded_file.name}",
                                     mime="video/mp4"
                                 )
                                 
-                                # Add clearer instructions
-                                st.markdown("""
-                                ### Video Playback Options
-                                - **Option 1:** Download and play the video locally (recommended)
-                                - **Option 2:** Try the embedded player below (may not work in all browsers)
+                                # Extract and display thumbnail frames instead of video playback
+                                st.markdown("### Video Preview")
+                                st.info("To view the full video with analysis results, please download using the button above and play it locally.")
                                 
-                                ⚠️ Note: If the player controls aren't responding, please download the video 
-                                for the best viewing experience.
-                                """)
-                                
-                                # Display processed video
-                                st.video(processed_video)
-                                
-                                # Add custom HTML video player with better compatibility
-                                st.markdown("### Processed Video")
-                                
-                                # Create a base64 encoded version of the video for embedding
-                                b64_video = base64.b64encode(processed_video).decode()
-                                
-                                # Create custom HTML with video element that has full controls
-                                video_html = f"""
-                                <video width="100%" controls>
-                                    <source src="data:video/mp4;base64,{b64_video}" type="video/mp4">
-                                    Your browser does not support the video tag.
-                                </video>
-                                """
-                                st.markdown(video_html, unsafe_allow_html=True)
-                                
-                                # Keep the regular player as a fallback option
-                                st.markdown("### Alternative Player (if HTML player doesn't work)")
-                                st.video(processed_video)
+                                # Show preview frames
+                                try:
+                                    st.markdown("#### Preview Frames")
+                                    frames = extract_video_frames(processed_video, num_frames=4)
+                                    
+                                    if frames:
+                                        cols = st.columns(len(frames))
+                                        for i, frame in enumerate(frames):
+                                            with cols[i]:
+                                                st.image(frame, caption=f"Frame {i+1}", use_container_width=True)
+                                    else:
+                                        st.warning("Could not extract preview frames from the video.")
+                                except Exception as e:
+                                    st.error(f"Error extracting preview frames: {str(e)}")
                                 
                                 # Show detailed analysis results
                                 st.markdown("### Detailed Analysis Results")