Update app.py

app.py

@@ -17,13 +17,17 @@ setup_avif_decode()
 
 
 def convert_avif_to_png(avif_file):
-    avif_path = avif_file.name
-    png_path = avif_path.rsplit('.', 1)[0] + '.png'
-    result = subprocess.run(["avif-decode/target/release/avif_decode", "-f", avif_path, png_path], capture_output=True, text=True)
-    if result.returncode == 0:
-        return png_path
-    else:
-        return f"Error converting {avif_file.name}: {result.stderr}"
+    def convert_avif_to_png(avif_files):
+    output_paths = []
+    for avif_file in avif_files:
+        avif_path = avif_file.name
+        png_path = avif_path.rsplit('.', 1)[0] + '.png'   
+        result = subprocess.run(["avif-decode/target/release/avif_decode", "-f", avif_path, png_path], capture_output=True, text=True)
+        if result.returncode == 0:
+            output_paths.append(png_path)
+        else:
+            output_paths.append(f"Error converting {avif_file.name}: {result.stderr}")
+    return output_paths
 
 
 css = """
@@ -46,7 +50,6 @@ with gr.Blocks(css=css) as demo:
             )           
             run_button = gr.Button("Convert", scale=0)       
         result = gr.Gallery(label="Result")
-
     run_button.click(
         fn=convert_avif_to_png,
         inputs=[avif_file],