Update app.py

app.py

@@ -21,14 +21,22 @@ def merge_videos(video1_path, video2_path):
     ffmpeg_cmd = (
         f'ffmpeg -i "{video1_path}" -i "{video2_path}" '
         f'-filter_complex '
-        f'"[0:v]scale={desired_width}:{desired_height}:force_original_aspect_ratio=decrease,pad={desired_width}:{desired_height}:(ow-iw)/2:(oh-ih)/2[v0];'
-        f'[1:v]scale={desired_width}:{desired_height}:force_original_aspect_ratio=decrease,pad={desired_width}:{desired_height}:(ow-iw)/2:(oh-ih)/2[v1];'
+        f'"[0:v]scale={desired_width}:{desired_height}:force_original_aspect_ratio=decrease,pad={desired_width}:{desired_height}:(ow-iw)/2:(oh-ih)/2,'
+        f'fps=fps=30[v0];'
+        f'[1:v]scale={desired_width}:{desired_height}:force_original_aspect_ratio=decrease,pad={desired_width}:{desired_height}:(ow-iw)/2:(oh-ih)/2,'
+        f'fps=fps=30[v1];'
         f'[v0][v1]vstack=inputs=2[v]" '
         f'-map "[v]" -c:v h264_nvenc -preset fast {output_filename}'
     )
     
-    subprocess.run(ffmpeg_cmd, shell=True, check=True)
-    
+    try:
+        subprocess.run(ffmpeg_cmd, shell=True, check=True, capture_output=True)
+    except subprocess.CalledProcessError as e:
+        print(f"Erro ao executar o ffmpeg: {e.stderr.decode()}")
+        if "Cannot load libnvidia-encode.so.1" in e.stderr.decode():
+            print("NVENC não disponível. Verifique a instalação dos drivers da NVIDIA e se sua GPU suporta NVENC.")
+        raise
+
     return output_filename
 
 def gradio_interface(video1, video2):