@@ -156,7 +156,7 @@ void ff_asfcrypt_dec(const uint8_t key[20], uint8_t *data, int len) {

     av_rc4_crypt(&rc4, (uint8_t *)rc4buff, NULL, sizeof(rc4buff), NULL, 1);

     multiswap_init((uint8_t *)rc4buff, ms_keys);

-    packetkey = qwords[num_qwords - 1];

+    packetkey = AV_RN64(&qwords[num_qwords - 1]);

     packetkey ^= rc4buff[7];

     av_des_init(&des, key + 12, 64, 1);

     av_des_crypt(&des, (uint8_t *)&packetkey, (uint8_t *)&packetkey, 1, NULL, 1);