app.py: Fix bug render duplication

app.py

@@ -78,31 +78,33 @@ def build_demo() -> gr.Blocks:
         </div>
     </div>
     """
+
     with gr.Blocks() as demo:
         gr.HTML(header)
-        gr.Interface(
-            fn=interpolate,
-            inputs=[
-                gr.Image(type="pil", label="Initial Image (frame1)"),
-                gr.Image(type="pil", label="Final Image (frame3)"),
-                gr.Slider(0.0, 1.0, step=0.05, value=0.5, label="Tau Value (only if Num Samples = 1)"),
-                gr.Slider(1, 15, step=1, value=1, label="Number of Samples"),
-            ],
-            outputs=[
-                gr.Image(label="Interpolated Image (if num_samples = 1)"),
-                gr.Video(label="Interpolation in video (if num_samples > 1)"),
-            ],
-            #title="Multi-Input ResShift Diffusion VFI",
-            description=(
-                "Video interpolation using Conditional Residual Diffusion.\n"
-                "- All images are resized to 256x448.\n"
-                "- If `Number of Samples = 1`, generates only one intermediate image with the given Tau value.\n"
-                "- If `Number of Samples > 1`, ignores Tau and generates a sequence of interpolated images."
-            ),
+
+        with gr.Row():
+            img0 = gr.Image(type="pil", label="Initial Image (frame1)")
+            img2 = gr.Image(type="pil", label="Final Image (frame3)")
+
+        with gr.Row():
+            tau = gr.Slider(0.0, 1.0, step=0.05, value=0.5, label="Tau Value (only if Num Samples = 1)")
+            samples = gr.Slider(1, 20, step=1, value=1, label="Number of Samples")
+
+        btn = gr.Button("Generate")
+
+        with gr.Row():
+            output_img = gr.Image(label="Interpolated Image (if num_samples = 1)")
+            output_vid = gr.Video(label="Interpolation in video (if num_samples > 1)")
+
+        btn.click(interpolate, inputs=[img0, img2, tau, samples], outputs=[output_img, output_vid])
+
+        gr.Examples(
             examples=[
                 ["_data/example_images/frame1.png", "_data/example_images/frame3.png", 0.5, 1],
             ],
+            inputs=[img0, img2, tau, samples],
         )
+
     return demo
 
 if __name__ == "__main__":