From 5a553a1ff65f5c215b95d6a0fea38d9f57a8e3dd Mon Sep 17 00:00:00 2001
From: "Jan Alexander Steffens (heftig)" <jan.steffens@ltnglobal.com>
Date: Tue, 16 Apr 2024 16:25:32 +0200
Subject: [PATCH] value: Provide MulDiv extensions for fractions

---
 gstreamer/src/lib.rs   |  2 +-
 gstreamer/src/value.rs | 28 ++++++++++++++++++++++++++++
 2 files changed, 29 insertions(+), 1 deletion(-)

diff --git a/gstreamer/src/lib.rs b/gstreamer/src/lib.rs
index 2d65fa6ad..a683bc621 100644
--- a/gstreamer/src/lib.rs
+++ b/gstreamer/src/lib.rs
@@ -353,7 +353,7 @@ pub mod prelude {
         task_pool::{TaskHandle, TaskPoolExtManual},
         typefind::TypeFindImpl,
         utils::Displayable,
-        value::GstValueExt,
+        value::{GstValueExt, MulDivExtFraction},
     };
 }
 
diff --git a/gstreamer/src/value.rs b/gstreamer/src/value.rs
index a30109c9b..ff738d286 100644
--- a/gstreamer/src/value.rs
+++ b/gstreamer/src/value.rs
@@ -3,6 +3,7 @@
 use std::{cmp, fmt, ops, slice};
 
 use glib::{prelude::*, translate::*};
+use muldiv::MulDiv;
 use num_rational::Rational32;
 
 #[derive(Copy, Clone, Debug, Ord, PartialOrd, Eq, PartialEq, Hash)]
@@ -307,6 +308,33 @@ impl From<Fraction> for Rational32 {
     }
 }
 
+pub trait MulDivExtFraction {
+    type Output;
+
+    fn mul_frac_floor(self, frac: Fraction) -> Option<Self::Output>;
+    fn mul_frac_round(self, frac: Fraction) -> Option<Self::Output>;
+    fn mul_frac_ceil(self, frac: Fraction) -> Option<Self::Output>;
+}
+
+impl<T> MulDivExtFraction for T
+where
+    T: MulDiv<i32>,
+{
+    type Output = <Self as MulDiv<i32>>::Output;
+
+    fn mul_frac_floor(self, frac: Fraction) -> Option<Self::Output> {
+        self.mul_div_floor(frac.numer(), frac.denom())
+    }
+
+    fn mul_frac_round(self, frac: Fraction) -> Option<Self::Output> {
+        self.mul_div_round(frac.numer(), frac.denom())
+    }
+
+    fn mul_frac_ceil(self, frac: Fraction) -> Option<Self::Output> {
+        self.mul_div_ceil(frac.numer(), frac.denom())
+    }
+}
+
 impl glib::types::StaticType for Fraction {
     #[inline]
     fn static_type() -> glib::types::Type {