public static extern byte *av_aes_ctr_get_iv(libavutil.AVAESCTR *a);
public static extern void av_aes_ctr_set_random_iv(libavutil.AVAESCTR *a);
public static extern void av_aes_ctr_crypt(libavutil.AVAESCTR *a, byte *dst, byte *src, int size);
public static extern void av_aes_ctr_free(libavutil.AVAESCTR *a);
public static extern int av_aes_ctr_init(libavutil.AVAESCTR *a, byte *key);
public static extern void av_aes_ctr_increment_iv(libavutil.AVAESCTR *a);
public static extern void av_aes_ctr_set_iv(libavutil.AVAESCTR *a, byte *iv);