diff --git a/gstreamer-audio/Gir.toml b/gstreamer-audio/Gir.toml
index 7675a8f12..babf9a029 100644
--- a/gstreamer-audio/Gir.toml
+++ b/gstreamer-audio/Gir.toml
@@ -244,6 +244,10 @@ manual_traits = ["AudioEncoderExtManual"]
         name = "tolerance"
         mandatory = true
 
+    [[object.function]]
+    name = "set_headers"
+    manual = true
+
 [[object]]
 name = "GstAudio.AudioFlags"
 status = "generate"
diff --git a/gstreamer-audio/src/audio_encoder.rs b/gstreamer-audio/src/audio_encoder.rs
index d14ced233..9992211c9 100644
--- a/gstreamer-audio/src/audio_encoder.rs
+++ b/gstreamer-audio/src/audio_encoder.rs
@@ -24,6 +24,9 @@ pub trait AudioEncoderExtManual: 'static {
     #[doc(alias = "gst_audio_encoder_get_allocator")]
     fn allocator(&self) -> (Option<gst::Allocator>, gst::AllocationParams);
 
+    #[doc(alias = "gst_audio_encoder_set_headers")]
+    fn set_headers(&self, headers: impl IntoIterator<Item = gst::Buffer>);
+
     fn sink_pad(&self) -> &gst::Pad;
 
     fn src_pad(&self) -> &gst::Pad;
@@ -84,6 +87,18 @@ impl<O: IsA<AudioEncoder>> AudioEncoderExtManual for O {
         }
     }
 
+    fn set_headers(&self, headers: impl IntoIterator<Item = gst::Buffer>) {
+        unsafe {
+            ffi::gst_audio_encoder_set_headers(
+                self.as_ref().to_glib_none().0,
+                headers
+                    .into_iter()
+                    .collect::<glib::List<_>>()
+                    .into_glib_ptr(),
+            );
+        }
+    }
+
     fn sink_pad(&self) -> &gst::Pad {
         unsafe {
             let elt = &*(self.as_ptr() as *const ffi::GstAudioEncoder);
diff --git a/gstreamer-audio/src/auto/audio_encoder.rs b/gstreamer-audio/src/auto/audio_encoder.rs
index 7bc29f610..ebf022d6d 100644
--- a/gstreamer-audio/src/auto/audio_encoder.rs
+++ b/gstreamer-audio/src/auto/audio_encoder.rs
@@ -106,9 +106,6 @@ pub trait AudioEncoderExt: 'static {
     #[doc(alias = "gst_audio_encoder_set_hard_resync")]
     fn set_hard_resync(&self, enabled: bool);
 
-    #[doc(alias = "gst_audio_encoder_set_headers")]
-    fn set_headers(&self, headers: Vec<gst::Buffer>);
-
     #[doc(alias = "gst_audio_encoder_set_latency")]
     fn set_latency(&self, min: gst::ClockTime, max: impl Into<Option<gst::ClockTime>>);
 
@@ -322,15 +319,6 @@ impl<O: IsA<AudioEncoder>> AudioEncoderExt for O {
         }
     }
 
-    fn set_headers(&self, headers: Vec<gst::Buffer>) {
-        unsafe {
-            ffi::gst_audio_encoder_set_headers(
-                self.as_ref().to_glib_none().0,
-                headers.into_glib_ptr(),
-            );
-        }
-    }
-
     fn set_latency(&self, min: gst::ClockTime, max: impl Into<Option<gst::ClockTime>>) {
         unsafe {
             ffi::gst_audio_encoder_set_latency(
diff --git a/gstreamer-video/Gir.toml b/gstreamer-video/Gir.toml
index 13b469b82..3d7858ae3 100644
--- a/gstreamer-video/Gir.toml
+++ b/gstreamer-video/Gir.toml
@@ -573,6 +573,10 @@ manual_traits = ["VideoEncoderExtManual"]
     name = "get_allocator"
     manual = true
 
+    [[object.function]]
+    name = "set_headers"
+    manual = true
+
 [[object]]
 name = "GstVideo.VideoFieldOrder"
 status = "generate"
diff --git a/gstreamer-video/src/auto/video_encoder.rs b/gstreamer-video/src/auto/video_encoder.rs
index e42e79383..62de8544d 100644
--- a/gstreamer-video/src/auto/video_encoder.rs
+++ b/gstreamer-video/src/auto/video_encoder.rs
@@ -50,9 +50,6 @@ pub trait VideoEncoderExt: 'static {
     #[doc(alias = "gst_video_encoder_proxy_getcaps")]
     fn proxy_getcaps(&self, caps: Option<&gst::Caps>, filter: Option<&gst::Caps>) -> gst::Caps;
 
-    #[doc(alias = "gst_video_encoder_set_headers")]
-    fn set_headers(&self, headers: Vec<gst::Buffer>);
-
     #[cfg(any(feature = "v1_18", feature = "dox"))]
     #[cfg_attr(feature = "dox", doc(cfg(feature = "v1_18")))]
     #[doc(alias = "gst_video_encoder_set_min_force_key_unit_interval")]
@@ -137,15 +134,6 @@ impl<O: IsA<VideoEncoder>> VideoEncoderExt for O {
         }
     }
 
-    fn set_headers(&self, headers: Vec<gst::Buffer>) {
-        unsafe {
-            ffi::gst_video_encoder_set_headers(
-                self.as_ref().to_glib_none().0,
-                headers.into_glib_ptr(),
-            );
-        }
-    }
-
     #[cfg(any(feature = "v1_18", feature = "dox"))]
     #[cfg_attr(feature = "dox", doc(cfg(feature = "v1_18")))]
     fn set_min_force_key_unit_interval(&self, interval: impl Into<Option<gst::ClockTime>>) {
diff --git a/gstreamer-video/src/video_encoder.rs b/gstreamer-video/src/video_encoder.rs
index 6bd2b430b..9e86cf961 100644
--- a/gstreamer-video/src/video_encoder.rs
+++ b/gstreamer-video/src/video_encoder.rs
@@ -69,6 +69,9 @@ pub trait VideoEncoderExtManual: 'static {
         output_state: VideoCodecState<'a, InNegotiation<'a>>,
     ) -> Result<(), gst::FlowError>;
 
+    #[doc(alias = "gst_video_encoder_set_headers")]
+    fn set_headers(&self, headers: impl IntoIterator<Item = gst::Buffer>);
+
     fn sink_pad(&self) -> &gst::Pad;
 
     fn src_pad(&self) -> &gst::Pad;
@@ -254,6 +257,18 @@ impl<O: IsA<VideoEncoder>> VideoEncoderExtManual for O {
         }
     }
 
+    fn set_headers(&self, headers: impl IntoIterator<Item = gst::Buffer>) {
+        unsafe {
+            ffi::gst_video_encoder_set_headers(
+                self.as_ref().to_glib_none().0,
+                headers
+                    .into_iter()
+                    .collect::<glib::List<_>>()
+                    .into_glib_ptr(),
+            );
+        }
+    }
+
     fn sink_pad(&self) -> &gst::Pad {
         unsafe {
             let elt = &*(self.as_ptr() as *const ffi::GstVideoEncoder);
diff --git a/gstreamer/src/date_time.rs b/gstreamer/src/date_time.rs
index 9a7066794..12e75fee8 100644
--- a/gstreamer/src/date_time.rs
+++ b/gstreamer/src/date_time.rs
@@ -502,14 +502,14 @@ impl fmt::Display for DateTime {
 impl<'a> From<&'a glib::DateTime> for DateTime {
     fn from(v: &'a glib::DateTime) -> DateTime {
         skip_assert_initialized!();
-        DateTime::from_g_date_time(v)
+        DateTime::from_g_date_time(v.clone())
     }
 }
 
 impl From<glib::DateTime> for DateTime {
     fn from(v: glib::DateTime) -> DateTime {
         skip_assert_initialized!();
-        DateTime::from_g_date_time(&v)
+        DateTime::from_g_date_time(v)
     }
 }