AESCrypt - Very slow file encryption

Dear, I'm using AESCrypt to keep the encrypted music and videos in my Player.

I used the following function to encrypt all media directory

Code :

	public static void encryptMusic(){
		String args1[] = new String[4];
		args1[0] = "e"; // encrypt
		args1[1] = "pass";
		AESCrypt aes;
 
		File filecryptss = new File("/home/dinho/midiasOLD");
 
		File fList[] = filecryptss.listFiles();
 
		for ( int i = 0; i < fList.length; i++ ){
			args1[2] = "/home/dinho/midiasOLD/" + fList[i].getName();
			args1[3] = "/home/dinho/midias/" + fList[i].getName();;
			try {
				aes = new AESCrypt(false, args1[1]);
				aes.criptografar(args1);
			} catch (UnsupportedEncodingException e2) {
				// TODO Auto-generated catch block
				e2.printStackTrace();
			} catch (GeneralSecurityException e2) {
				// TODO Auto-generated catch block
				e2.printStackTrace();
			};
 
			System.out.println("Arquivo criptografado: " + fList[i].getName()); 
			System.out.println("Deletando arquivo: " + fList[i].getName() + "..."); 
			fList[i].delete(); // deleto o arquivo para não ocupar espaço
 
		}
 
		System.exit(0);
 
	}

At run time, do the decryption putting a new file as tmp just to run.

Code :

String args1[] = new String[4];
args1[0] = "d"; // decrypt
args1[1] = "pass";
args1[2] = "/home/dinho/midias/video.avi";
args1[3] = "/home/dinho/midias/tmp_video.avi";
AESCrypt aes;
try {
aes = new AESCrypt(false, args1[1]);
aes.criptografar(args1);
} catch (UnsupportedEncodingException e2) {
// TODO Auto-generated catch block
e2.printStackTrace();
} catch (GeneralSecurityException e2) {
// TODO Auto-generated catch block
e2.printStackTrace();
};

After running the tmp file, it is removed from the directory.

The problem I face is that when selecting a video file, depending on size, can take up to one minute only to decrypt.

The question is:
Is there a way to decrypt without the need to create a new physical file?
I'm at least on the right track or is there a better way to do this whole process?