diff --git a/src/mpv/format.rs b/src/mpv/format.rs
index d56dd27..5fef129 100644
--- a/src/mpv/format.rs
+++ b/src/mpv/format.rs
@@ -7,9 +7,9 @@ pub trait SetProperty {
     unsafe fn set_property(self, ctx: *mut ffi::mpv_handle, name: *const c_char) -> c_int;
 }
 
-impl<'a> SetProperty for &'a str {
+impl SetProperty for String {
     unsafe fn set_property(self, ctx: *mut ffi::mpv_handle, name: *const c_char) -> c_int {
-        // need to add zero terminator
+        // should add zero terminator directly
         let value = CString::new(self).expect("null bytes in string property value");
         let value_ptr: *const c_char = value.as_ptr();
         ffi::mpv_set_property(
@@ -21,6 +21,13 @@ impl<'a> SetProperty for &'a str {
     }
 }
 
+impl<'a> SetProperty for &'a str {
+    unsafe fn set_property(self, ctx: *mut ffi::mpv_handle, name: *const c_char) -> c_int {
+        // need to add zero terminator
+        String::set_property(self.into(), ctx, name)
+    }
+}
+
 impl SetProperty for bool {
     unsafe fn set_property(self, ctx: *mut ffi::mpv_handle, name: *const c_char) -> c_int {
         let value: c_int = if self { 1 } else { 0 };
@@ -32,3 +39,25 @@ impl SetProperty for bool {
         )
     }
 }
+
+impl SetProperty for i64 {
+    unsafe fn set_property(self, ctx: *mut ffi::mpv_handle, name: *const c_char) -> c_int {
+        ffi::mpv_set_property(
+            ctx,
+            name,
+            ffi::mpv_format_MPV_FORMAT_INT64,
+            std::ptr::from_ref::<i64>(&self) as *mut c_void,
+        )
+    }
+}
+
+impl SetProperty for f64 {
+    unsafe fn set_property(self, ctx: *mut ffi::mpv_handle, name: *const c_char) -> c_int {
+        ffi::mpv_set_property(
+            ctx,
+            name,
+            ffi::mpv_format_MPV_FORMAT_DOUBLE,
+            std::ptr::from_ref::<f64>(&self) as *mut c_void,
+        )
+    }
+}