diff --git a/gstreamer-allocators/src/auto/versions.txt b/gstreamer-allocators/src/auto/versions.txt
index 4133cf20b..a18bf5ca8 100644
--- a/gstreamer-allocators/src/auto/versions.txt
+++ b/gstreamer-allocators/src/auto/versions.txt
@@ -1,3 +1,3 @@
-Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-allocators/sys/Cargo.toml b/gstreamer-allocators/sys/Cargo.toml
index f9f4936b7..0c78565e4 100644
--- a/gstreamer-allocators/sys/Cargo.toml
+++ b/gstreamer-allocators/sys/Cargo.toml
@@ -21,7 +21,7 @@ shell-words = "1.0.0"
 tempfile = "3"
 
 [features]
-dox = []
+dox = ["glib/dox", "gobject/dox", "gst/dox"]
 v1_16 = []
 v1_18 = ["v1_16"]
 v1_20 = ["v1_18"]
diff --git a/gstreamer-allocators/sys/build.rs b/gstreamer-allocators/sys/build.rs
index c8ef202cf..5762ce067 100644
--- a/gstreamer-allocators/sys/build.rs
+++ b/gstreamer-allocators/sys/build.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #[cfg(not(feature = "dox"))]
diff --git a/gstreamer-allocators/sys/src/auto/versions.txt b/gstreamer-allocators/sys/src/auto/versions.txt
new file mode 100644
index 000000000..a18bf5ca8
--- /dev/null
+++ b/gstreamer-allocators/sys/src/auto/versions.txt
@@ -0,0 +1,3 @@
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-allocators/sys/src/lib.rs b/gstreamer-allocators/sys/src/lib.rs
index df3b09898..5c05aac2d 100644
--- a/gstreamer-allocators/sys/src/lib.rs
+++ b/gstreamer-allocators/sys/src/lib.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #![allow(non_camel_case_types, non_upper_case_globals, non_snake_case)]
diff --git a/gstreamer-allocators/sys/tests/abi.rs b/gstreamer-allocators/sys/tests/abi.rs
index 2e02fa8db..e5c155a7a 100644
--- a/gstreamer-allocators/sys/tests/abi.rs
+++ b/gstreamer-allocators/sys/tests/abi.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 use gstreamer_allocators_sys::*;
diff --git a/gstreamer-allocators/sys/tests/constant.c b/gstreamer-allocators/sys/tests/constant.c
index ddc05bc66..ae1ebc6d0 100644
--- a/gstreamer-allocators/sys/tests/constant.c
+++ b/gstreamer-allocators/sys/tests/constant.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-allocators/sys/tests/layout.c b/gstreamer-allocators/sys/tests/layout.c
index 25b4803a3..ce13b5c4d 100644
--- a/gstreamer-allocators/sys/tests/layout.c
+++ b/gstreamer-allocators/sys/tests/layout.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-app/src/auto/versions.txt b/gstreamer-app/src/auto/versions.txt
index 4133cf20b..a18bf5ca8 100644
--- a/gstreamer-app/src/auto/versions.txt
+++ b/gstreamer-app/src/auto/versions.txt
@@ -1,3 +1,3 @@
-Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-app/sys/Cargo.toml b/gstreamer-app/sys/Cargo.toml
index 7e3e1b0ef..f0ac4b5e1 100644
--- a/gstreamer-app/sys/Cargo.toml
+++ b/gstreamer-app/sys/Cargo.toml
@@ -25,7 +25,7 @@ v1_16 = []
 v1_18 = ["v1_16"]
 v1_20 = ["v1_18"]
 v1_22 = ["v1_20"]
-dox = []
+dox = ["glib/dox", "gst/dox", "gst_base/dox"]
 
 [lib]
 name = "gstreamer_app_sys"
diff --git a/gstreamer-app/sys/build.rs b/gstreamer-app/sys/build.rs
index c8ef202cf..5762ce067 100644
--- a/gstreamer-app/sys/build.rs
+++ b/gstreamer-app/sys/build.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #[cfg(not(feature = "dox"))]
diff --git a/gstreamer-app/sys/src/auto/versions.txt b/gstreamer-app/sys/src/auto/versions.txt
new file mode 100644
index 000000000..a18bf5ca8
--- /dev/null
+++ b/gstreamer-app/sys/src/auto/versions.txt
@@ -0,0 +1,3 @@
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-app/sys/src/lib.rs b/gstreamer-app/sys/src/lib.rs
index 1bbfa6536..fccaabfba 100644
--- a/gstreamer-app/sys/src/lib.rs
+++ b/gstreamer-app/sys/src/lib.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #![allow(non_camel_case_types, non_upper_case_globals, non_snake_case)]
diff --git a/gstreamer-app/sys/tests/abi.rs b/gstreamer-app/sys/tests/abi.rs
index 1cf7be2b9..1173ded24 100644
--- a/gstreamer-app/sys/tests/abi.rs
+++ b/gstreamer-app/sys/tests/abi.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 use gstreamer_app_sys::*;
diff --git a/gstreamer-app/sys/tests/constant.c b/gstreamer-app/sys/tests/constant.c
index 2488277d4..982918826 100644
--- a/gstreamer-app/sys/tests/constant.c
+++ b/gstreamer-app/sys/tests/constant.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-app/sys/tests/layout.c b/gstreamer-app/sys/tests/layout.c
index 2c6c6a8b4..547058742 100644
--- a/gstreamer-app/sys/tests/layout.c
+++ b/gstreamer-app/sys/tests/layout.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-audio/src/auto/audio_decoder.rs b/gstreamer-audio/src/auto/audio_decoder.rs
index 5e41b6fa3..33c8aa962 100644
--- a/gstreamer-audio/src/auto/audio_decoder.rs
+++ b/gstreamer-audio/src/auto/audio_decoder.rs
@@ -31,11 +31,11 @@ unsafe impl Sync for AudioDecoder {}
 
 pub trait AudioDecoderExt: 'static {
     #[doc(alias = "gst_audio_decoder_allocate_output_buffer")]
-    fn allocate_output_buffer(&self, size: usize) -> Result<gst::Buffer, glib::BoolError>;
+    fn allocate_output_buffer(&self, size: usize) -> gst::Buffer;
 
     #[doc(alias = "gst_audio_decoder_get_audio_info")]
     #[doc(alias = "get_audio_info")]
-    fn audio_info(&self) -> Option<AudioInfo>;
+    fn audio_info(&self) -> AudioInfo;
 
     #[doc(alias = "gst_audio_decoder_get_delay")]
     #[doc(alias = "get_delay")]
@@ -145,17 +145,16 @@ pub trait AudioDecoderExt: 'static {
 }
 
 impl<O: IsA<AudioDecoder>> AudioDecoderExt for O {
-    fn allocate_output_buffer(&self, size: usize) -> Result<gst::Buffer, glib::BoolError> {
+    fn allocate_output_buffer(&self, size: usize) -> gst::Buffer {
         unsafe {
-            Option::<_>::from_glib_full(ffi::gst_audio_decoder_allocate_output_buffer(
+            from_glib_full(ffi::gst_audio_decoder_allocate_output_buffer(
                 self.as_ref().to_glib_none().0,
                 size,
             ))
-            .ok_or_else(|| glib::bool_error!("Failed to allocate output buffer"))
         }
     }
 
-    fn audio_info(&self) -> Option<AudioInfo> {
+    fn audio_info(&self) -> AudioInfo {
         unsafe {
             from_glib_none(ffi::gst_audio_decoder_get_audio_info(
                 self.as_ref().to_glib_none().0,
diff --git a/gstreamer-audio/src/auto/audio_encoder.rs b/gstreamer-audio/src/auto/audio_encoder.rs
index 382db74ed..71df8d6b2 100644
--- a/gstreamer-audio/src/auto/audio_encoder.rs
+++ b/gstreamer-audio/src/auto/audio_encoder.rs
@@ -31,11 +31,11 @@ unsafe impl Sync for AudioEncoder {}
 
 pub trait AudioEncoderExt: 'static {
     #[doc(alias = "gst_audio_encoder_allocate_output_buffer")]
-    fn allocate_output_buffer(&self, size: usize) -> Result<gst::Buffer, glib::BoolError>;
+    fn allocate_output_buffer(&self, size: usize) -> gst::Buffer;
 
     #[doc(alias = "gst_audio_encoder_get_audio_info")]
     #[doc(alias = "get_audio_info")]
-    fn audio_info(&self) -> Option<AudioInfo>;
+    fn audio_info(&self) -> AudioInfo;
 
     #[doc(alias = "gst_audio_encoder_get_drainable")]
     #[doc(alias = "get_drainable")]
@@ -152,17 +152,16 @@ pub trait AudioEncoderExt: 'static {
 }
 
 impl<O: IsA<AudioEncoder>> AudioEncoderExt for O {
-    fn allocate_output_buffer(&self, size: usize) -> Result<gst::Buffer, glib::BoolError> {
+    fn allocate_output_buffer(&self, size: usize) -> gst::Buffer {
         unsafe {
-            Option::<_>::from_glib_full(ffi::gst_audio_encoder_allocate_output_buffer(
+            from_glib_full(ffi::gst_audio_encoder_allocate_output_buffer(
                 self.as_ref().to_glib_none().0,
                 size,
             ))
-            .ok_or_else(|| glib::bool_error!("Failed to allocate output buffer"))
         }
     }
 
-    fn audio_info(&self) -> Option<AudioInfo> {
+    fn audio_info(&self) -> AudioInfo {
         unsafe {
             from_glib_none(ffi::gst_audio_encoder_get_audio_info(
                 self.as_ref().to_glib_none().0,
diff --git a/gstreamer-audio/src/auto/versions.txt b/gstreamer-audio/src/auto/versions.txt
index 4133cf20b..a18bf5ca8 100644
--- a/gstreamer-audio/src/auto/versions.txt
+++ b/gstreamer-audio/src/auto/versions.txt
@@ -1,3 +1,3 @@
-Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-audio/sys/Cargo.toml b/gstreamer-audio/sys/Cargo.toml
index 6d20bea57..ed9f6b941 100644
--- a/gstreamer-audio/sys/Cargo.toml
+++ b/gstreamer-audio/sys/Cargo.toml
@@ -29,7 +29,7 @@ v1_16 = []
 v1_18 = ["v1_16"]
 v1_20 = ["v1_18"]
 v1_22 = ["v1_20"]
-dox = []
+dox = ["glib/dox", "gobject/dox", "gst/dox", "gst_base/dox"]
 
 [lib]
 name = "gstreamer_audio_sys"
diff --git a/gstreamer-audio/sys/build.rs b/gstreamer-audio/sys/build.rs
index c8ef202cf..5762ce067 100644
--- a/gstreamer-audio/sys/build.rs
+++ b/gstreamer-audio/sys/build.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #[cfg(not(feature = "dox"))]
diff --git a/gstreamer-audio/sys/src/auto/versions.txt b/gstreamer-audio/sys/src/auto/versions.txt
new file mode 100644
index 000000000..a18bf5ca8
--- /dev/null
+++ b/gstreamer-audio/sys/src/auto/versions.txt
@@ -0,0 +1,3 @@
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-audio/sys/src/lib.rs b/gstreamer-audio/sys/src/lib.rs
index 803bf9358..f416ea2c0 100644
--- a/gstreamer-audio/sys/src/lib.rs
+++ b/gstreamer-audio/sys/src/lib.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #![allow(non_camel_case_types, non_upper_case_globals, non_snake_case)]
diff --git a/gstreamer-audio/sys/tests/abi.rs b/gstreamer-audio/sys/tests/abi.rs
index 07b6bc43c..b4fd8fcbf 100644
--- a/gstreamer-audio/sys/tests/abi.rs
+++ b/gstreamer-audio/sys/tests/abi.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 use gstreamer_audio_sys::*;
diff --git a/gstreamer-audio/sys/tests/constant.c b/gstreamer-audio/sys/tests/constant.c
index 413cecaca..41b5d6d8a 100644
--- a/gstreamer-audio/sys/tests/constant.c
+++ b/gstreamer-audio/sys/tests/constant.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-audio/sys/tests/layout.c b/gstreamer-audio/sys/tests/layout.c
index acd50657d..5de514d03 100644
--- a/gstreamer-audio/sys/tests/layout.c
+++ b/gstreamer-audio/sys/tests/layout.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-base/src/auto/versions.txt b/gstreamer-base/src/auto/versions.txt
index 4133cf20b..a18bf5ca8 100644
--- a/gstreamer-base/src/auto/versions.txt
+++ b/gstreamer-base/src/auto/versions.txt
@@ -1,3 +1,3 @@
-Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-base/sys/Cargo.toml b/gstreamer-base/sys/Cargo.toml
index 1ec8f8187..7dd3b7ef1 100644
--- a/gstreamer-base/sys/Cargo.toml
+++ b/gstreamer-base/sys/Cargo.toml
@@ -27,7 +27,7 @@ v1_16 = ["v1_14_3"]
 v1_18 = ["v1_16"]
 v1_20 = ["v1_18"]
 v1_22 = ["v1_20"]
-dox = []
+dox = ["glib/dox", "gobject/dox", "gst/dox"]
 
 [lib]
 name = "gstreamer_base_sys"
diff --git a/gstreamer-base/sys/build.rs b/gstreamer-base/sys/build.rs
index c8ef202cf..5762ce067 100644
--- a/gstreamer-base/sys/build.rs
+++ b/gstreamer-base/sys/build.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #[cfg(not(feature = "dox"))]
diff --git a/gstreamer-base/sys/src/auto/versions.txt b/gstreamer-base/sys/src/auto/versions.txt
new file mode 100644
index 000000000..a18bf5ca8
--- /dev/null
+++ b/gstreamer-base/sys/src/auto/versions.txt
@@ -0,0 +1,3 @@
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-base/sys/src/lib.rs b/gstreamer-base/sys/src/lib.rs
index 19200375b..32e97df04 100644
--- a/gstreamer-base/sys/src/lib.rs
+++ b/gstreamer-base/sys/src/lib.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #![allow(non_camel_case_types, non_upper_case_globals, non_snake_case)]
diff --git a/gstreamer-base/sys/tests/abi.rs b/gstreamer-base/sys/tests/abi.rs
index 92de4e064..0eb5c031a 100644
--- a/gstreamer-base/sys/tests/abi.rs
+++ b/gstreamer-base/sys/tests/abi.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 use gstreamer_base_sys::*;
diff --git a/gstreamer-base/sys/tests/constant.c b/gstreamer-base/sys/tests/constant.c
index 0e63e45dc..bfb2a7d6f 100644
--- a/gstreamer-base/sys/tests/constant.c
+++ b/gstreamer-base/sys/tests/constant.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-base/sys/tests/layout.c b/gstreamer-base/sys/tests/layout.c
index 87cd550ef..406c900c8 100644
--- a/gstreamer-base/sys/tests/layout.c
+++ b/gstreamer-base/sys/tests/layout.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-check/src/auto/versions.txt b/gstreamer-check/src/auto/versions.txt
index 4133cf20b..a18bf5ca8 100644
--- a/gstreamer-check/src/auto/versions.txt
+++ b/gstreamer-check/src/auto/versions.txt
@@ -1,3 +1,3 @@
-Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-check/sys/Cargo.toml b/gstreamer-check/sys/Cargo.toml
index 6b8b12d1a..508646196 100644
--- a/gstreamer-check/sys/Cargo.toml
+++ b/gstreamer-check/sys/Cargo.toml
@@ -25,7 +25,7 @@ v1_16 = []
 v1_18 = ["v1_16"]
 v1_20 = ["v1_18"]
 v1_22 = ["v1_20"]
-dox = []
+dox = ["glib/dox", "gobject/dox", "gst/dox"]
 
 [lib]
 name = "gstreamer_check_sys"
diff --git a/gstreamer-check/sys/build.rs b/gstreamer-check/sys/build.rs
index c8ef202cf..5762ce067 100644
--- a/gstreamer-check/sys/build.rs
+++ b/gstreamer-check/sys/build.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #[cfg(not(feature = "dox"))]
diff --git a/gstreamer-check/sys/src/auto/versions.txt b/gstreamer-check/sys/src/auto/versions.txt
new file mode 100644
index 000000000..a18bf5ca8
--- /dev/null
+++ b/gstreamer-check/sys/src/auto/versions.txt
@@ -0,0 +1,3 @@
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-check/sys/src/lib.rs b/gstreamer-check/sys/src/lib.rs
index 24040e2c4..a93fe4b26 100644
--- a/gstreamer-check/sys/src/lib.rs
+++ b/gstreamer-check/sys/src/lib.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #![allow(non_camel_case_types, non_upper_case_globals, non_snake_case)]
diff --git a/gstreamer-check/sys/tests/abi.rs b/gstreamer-check/sys/tests/abi.rs
index 5d8f6f197..7c63d4a53 100644
--- a/gstreamer-check/sys/tests/abi.rs
+++ b/gstreamer-check/sys/tests/abi.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 use gstreamer_check_sys::*;
diff --git a/gstreamer-check/sys/tests/constant.c b/gstreamer-check/sys/tests/constant.c
index 91dd07916..d37bc26f5 100644
--- a/gstreamer-check/sys/tests/constant.c
+++ b/gstreamer-check/sys/tests/constant.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-check/sys/tests/layout.c b/gstreamer-check/sys/tests/layout.c
index d526d83c9..604df5879 100644
--- a/gstreamer-check/sys/tests/layout.c
+++ b/gstreamer-check/sys/tests/layout.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-controller/src/auto/versions.txt b/gstreamer-controller/src/auto/versions.txt
index 4133cf20b..a18bf5ca8 100644
--- a/gstreamer-controller/src/auto/versions.txt
+++ b/gstreamer-controller/src/auto/versions.txt
@@ -1,3 +1,3 @@
-Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-controller/sys/Cargo.toml b/gstreamer-controller/sys/Cargo.toml
index b8dd6b5bb..c681acae8 100644
--- a/gstreamer-controller/sys/Cargo.toml
+++ b/gstreamer-controller/sys/Cargo.toml
@@ -26,7 +26,7 @@ v1_16 = []
 v1_18 = ["v1_16"]
 v1_20 = ["v1_18"]
 v1_22 = ["v1_20"]
-dox = []
+dox = ["glib/dox", "gobject/dox", "gst/dox"]
 
 [lib]
 name = "gstreamer_controller_sys"
diff --git a/gstreamer-controller/sys/build.rs b/gstreamer-controller/sys/build.rs
index c8ef202cf..5762ce067 100644
--- a/gstreamer-controller/sys/build.rs
+++ b/gstreamer-controller/sys/build.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #[cfg(not(feature = "dox"))]
diff --git a/gstreamer-controller/sys/src/auto/versions.txt b/gstreamer-controller/sys/src/auto/versions.txt
new file mode 100644
index 000000000..a18bf5ca8
--- /dev/null
+++ b/gstreamer-controller/sys/src/auto/versions.txt
@@ -0,0 +1,3 @@
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-controller/sys/src/lib.rs b/gstreamer-controller/sys/src/lib.rs
index 9a1f67585..89f509d17 100644
--- a/gstreamer-controller/sys/src/lib.rs
+++ b/gstreamer-controller/sys/src/lib.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #![allow(non_camel_case_types, non_upper_case_globals, non_snake_case)]
diff --git a/gstreamer-controller/sys/tests/abi.rs b/gstreamer-controller/sys/tests/abi.rs
index 27e0cae69..d14cf3e99 100644
--- a/gstreamer-controller/sys/tests/abi.rs
+++ b/gstreamer-controller/sys/tests/abi.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 use gstreamer_controller_sys::*;
diff --git a/gstreamer-controller/sys/tests/constant.c b/gstreamer-controller/sys/tests/constant.c
index 80642e6e0..49fa3a087 100644
--- a/gstreamer-controller/sys/tests/constant.c
+++ b/gstreamer-controller/sys/tests/constant.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-controller/sys/tests/layout.c b/gstreamer-controller/sys/tests/layout.c
index e71010a9e..368eb5765 100644
--- a/gstreamer-controller/sys/tests/layout.c
+++ b/gstreamer-controller/sys/tests/layout.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-editing-services/src/auto/asset.rs b/gstreamer-editing-services/src/auto/asset.rs
index de6b96f45..64060c4a5 100644
--- a/gstreamer-editing-services/src/auto/asset.rs
+++ b/gstreamer-editing-services/src/auto/asset.rs
@@ -144,7 +144,7 @@ pub trait AssetExt: 'static {
 
     #[doc(alias = "ges_asset_get_id")]
     #[doc(alias = "get_id")]
-    fn id(&self) -> Option<glib::GString>;
+    fn id(&self) -> glib::GString;
 
     #[doc(alias = "ges_asset_get_proxy")]
     #[doc(alias = "get_proxy")]
@@ -197,7 +197,7 @@ impl<O: IsA<Asset>> AssetExt for O {
         }
     }
 
-    fn id(&self) -> Option<glib::GString> {
+    fn id(&self) -> glib::GString {
         unsafe { from_glib_none(ffi::ges_asset_get_id(self.as_ref().to_glib_none().0)) }
     }
 
diff --git a/gstreamer-editing-services/src/auto/extractable.rs b/gstreamer-editing-services/src/auto/extractable.rs
index a6011f614..5f0c71ccc 100644
--- a/gstreamer-editing-services/src/auto/extractable.rs
+++ b/gstreamer-editing-services/src/auto/extractable.rs
@@ -27,7 +27,7 @@ pub trait ExtractableExt: 'static {
 
     #[doc(alias = "ges_extractable_get_id")]
     #[doc(alias = "get_id")]
-    fn id(&self) -> Option<glib::GString>;
+    fn id(&self) -> glib::GString;
 
     #[doc(alias = "ges_extractable_set_asset")]
     fn set_asset(&self, asset: &impl IsA<Asset>) -> Result<(), glib::error::BoolError>;
@@ -42,7 +42,7 @@ impl<O: IsA<Extractable>> ExtractableExt for O {
         }
     }
 
-    fn id(&self) -> Option<glib::GString> {
+    fn id(&self) -> glib::GString {
         unsafe { from_glib_full(ffi::ges_extractable_get_id(self.as_ref().to_glib_none().0)) }
     }
 
diff --git a/gstreamer-editing-services/src/auto/formatter.rs b/gstreamer-editing-services/src/auto/formatter.rs
index d3c3d5ae7..163dd6764 100644
--- a/gstreamer-editing-services/src/auto/formatter.rs
+++ b/gstreamer-editing-services/src/auto/formatter.rs
@@ -54,7 +54,7 @@ impl Formatter {
 
     #[doc(alias = "ges_formatter_get_default")]
     #[doc(alias = "get_default")]
-    pub fn default() -> Option<Asset> {
+    pub fn default() -> Asset {
         assert_initialized_main_thread!();
         unsafe { from_glib_none(ffi::ges_formatter_get_default()) }
     }
diff --git a/gstreamer-editing-services/src/auto/marker_list.rs b/gstreamer-editing-services/src/auto/marker_list.rs
index e2a7d3df8..d7155a910 100644
--- a/gstreamer-editing-services/src/auto/marker_list.rs
+++ b/gstreamer-editing-services/src/auto/marker_list.rs
@@ -37,7 +37,7 @@ impl MarkerList {
     }
 
     #[doc(alias = "ges_marker_list_add")]
-    pub fn add(&self, position: impl Into<Option<gst::ClockTime>>) -> Option<Marker> {
+    pub fn add(&self, position: impl Into<Option<gst::ClockTime>>) -> Marker {
         unsafe {
             from_glib_none(ffi::ges_marker_list_add(
                 self.to_glib_none().0,
diff --git a/gstreamer-editing-services/src/auto/meta_container.rs b/gstreamer-editing-services/src/auto/meta_container.rs
index d19c190cb..127b5116c 100644
--- a/gstreamer-editing-services/src/auto/meta_container.rs
+++ b/gstreamer-editing-services/src/auto/meta_container.rs
@@ -91,7 +91,7 @@ pub trait MetaContainerExt: 'static {
     fn uint64(&self, meta_item: &str) -> Option<u64>;
 
     #[doc(alias = "ges_meta_container_metas_to_string")]
-    fn metas_to_string(&self) -> Option<glib::GString>;
+    fn metas_to_string(&self) -> glib::GString;
 
     #[doc(alias = "ges_meta_container_register_meta")]
     fn register_meta(&self, flags: MetaFlag, meta_item: &str, value: &glib::Value) -> bool;
@@ -416,7 +416,7 @@ impl<O: IsA<MetaContainer>> MetaContainerExt for O {
         }
     }
 
-    fn metas_to_string(&self) -> Option<glib::GString> {
+    fn metas_to_string(&self) -> glib::GString {
         unsafe {
             from_glib_full(ffi::ges_meta_container_metas_to_string(
                 self.as_ref().to_glib_none().0,
diff --git a/gstreamer-editing-services/src/auto/pipeline.rs b/gstreamer-editing-services/src/auto/pipeline.rs
index c737aa1d2..68690f8ff 100644
--- a/gstreamer-editing-services/src/auto/pipeline.rs
+++ b/gstreamer-editing-services/src/auto/pipeline.rs
@@ -61,10 +61,10 @@ pub trait GESPipelineExt: 'static {
     fn preview_get_video_sink(&self) -> Option<gst::Element>;
 
     #[doc(alias = "ges_pipeline_preview_set_audio_sink")]
-    fn preview_set_audio_sink(&self, sink: &impl IsA<gst::Element>);
+    fn preview_set_audio_sink(&self, sink: Option<&impl IsA<gst::Element>>);
 
     #[doc(alias = "ges_pipeline_preview_set_video_sink")]
-    fn preview_set_video_sink(&self, sink: &impl IsA<gst::Element>);
+    fn preview_set_video_sink(&self, sink: Option<&impl IsA<gst::Element>>);
 
     #[doc(alias = "ges_pipeline_save_thumbnail")]
     fn save_thumbnail(
@@ -173,20 +173,20 @@ impl<O: IsA<Pipeline>> GESPipelineExt for O {
         }
     }
 
-    fn preview_set_audio_sink(&self, sink: &impl IsA<gst::Element>) {
+    fn preview_set_audio_sink(&self, sink: Option<&impl IsA<gst::Element>>) {
         unsafe {
             ffi::ges_pipeline_preview_set_audio_sink(
                 self.as_ref().to_glib_none().0,
-                sink.as_ref().to_glib_none().0,
+                sink.map(|p| p.as_ref()).to_glib_none().0,
             );
         }
     }
 
-    fn preview_set_video_sink(&self, sink: &impl IsA<gst::Element>) {
+    fn preview_set_video_sink(&self, sink: Option<&impl IsA<gst::Element>>) {
         unsafe {
             ffi::ges_pipeline_preview_set_video_sink(
                 self.as_ref().to_glib_none().0,
-                sink.as_ref().to_glib_none().0,
+                sink.map(|p| p.as_ref()).to_glib_none().0,
             );
         }
     }
diff --git a/gstreamer-editing-services/src/auto/text_overlay.rs b/gstreamer-editing-services/src/auto/text_overlay.rs
index 5e5f2bcc9..14b512a21 100644
--- a/gstreamer-editing-services/src/auto/text_overlay.rs
+++ b/gstreamer-editing-services/src/auto/text_overlay.rs
@@ -66,13 +66,13 @@ pub trait TextOverlayExt: 'static {
     fn set_color(&self, color: u32);
 
     #[doc(alias = "ges_text_overlay_set_font_desc")]
-    fn set_font_desc(&self, font_desc: &str);
+    fn set_font_desc(&self, font_desc: Option<&str>);
 
     #[doc(alias = "ges_text_overlay_set_halignment")]
     fn set_halignment(&self, halign: TextHAlign);
 
     #[doc(alias = "ges_text_overlay_set_text")]
-    fn set_text(&self, text: &str);
+    fn set_text(&self, text: Option<&str>);
 
     #[doc(alias = "ges_text_overlay_set_valignment")]
     fn set_valignment(&self, valign: TextVAlign);
@@ -135,7 +135,7 @@ impl<O: IsA<TextOverlay>> TextOverlayExt for O {
         }
     }
 
-    fn set_font_desc(&self, font_desc: &str) {
+    fn set_font_desc(&self, font_desc: Option<&str>) {
         unsafe {
             ffi::ges_text_overlay_set_font_desc(
                 self.as_ref().to_glib_none().0,
@@ -153,7 +153,7 @@ impl<O: IsA<TextOverlay>> TextOverlayExt for O {
         }
     }
 
-    fn set_text(&self, text: &str) {
+    fn set_text(&self, text: Option<&str>) {
         unsafe {
             ffi::ges_text_overlay_set_text(self.as_ref().to_glib_none().0, text.to_glib_none().0);
         }
diff --git a/gstreamer-editing-services/src/auto/text_overlay_clip.rs b/gstreamer-editing-services/src/auto/text_overlay_clip.rs
index 75819fc99..e2a780938 100644
--- a/gstreamer-editing-services/src/auto/text_overlay_clip.rs
+++ b/gstreamer-editing-services/src/auto/text_overlay_clip.rs
@@ -73,13 +73,13 @@ pub trait TextOverlayClipExt: 'static {
     fn set_color(&self, color: u32);
 
     #[doc(alias = "ges_text_overlay_clip_set_font_desc")]
-    fn set_font_desc(&self, font_desc: &str);
+    fn set_font_desc(&self, font_desc: Option<&str>);
 
     #[doc(alias = "ges_text_overlay_clip_set_halign")]
     fn set_halign(&self, halign: TextHAlign);
 
     #[doc(alias = "ges_text_overlay_clip_set_text")]
-    fn set_text(&self, text: &str);
+    fn set_text(&self, text: Option<&str>);
 
     #[doc(alias = "ges_text_overlay_clip_set_valign")]
     fn set_valign(&self, valign: TextVAlign);
@@ -167,7 +167,7 @@ impl<O: IsA<TextOverlayClip>> TextOverlayClipExt for O {
         }
     }
 
-    fn set_font_desc(&self, font_desc: &str) {
+    fn set_font_desc(&self, font_desc: Option<&str>) {
         unsafe {
             ffi::ges_text_overlay_clip_set_font_desc(
                 self.as_ref().to_glib_none().0,
@@ -185,7 +185,7 @@ impl<O: IsA<TextOverlayClip>> TextOverlayClipExt for O {
         }
     }
 
-    fn set_text(&self, text: &str) {
+    fn set_text(&self, text: Option<&str>) {
         unsafe {
             ffi::ges_text_overlay_clip_set_text(
                 self.as_ref().to_glib_none().0,
diff --git a/gstreamer-editing-services/src/auto/timeline.rs b/gstreamer-editing-services/src/auto/timeline.rs
index 1055b60eb..5c93254d6 100644
--- a/gstreamer-editing-services/src/auto/timeline.rs
+++ b/gstreamer-editing-services/src/auto/timeline.rs
@@ -52,7 +52,7 @@ impl Timeline {
 
     #[doc(alias = "ges_timeline_new_from_uri")]
     #[doc(alias = "new_from_uri")]
-    pub fn from_uri(uri: &str) -> Result<Option<Timeline>, glib::Error> {
+    pub fn from_uri(uri: &str) -> Result<Timeline, glib::Error> {
         assert_initialized_main_thread!();
         unsafe {
             let mut error = ptr::null_mut();
@@ -212,7 +212,7 @@ pub trait TimelineExt: 'static {
     #[cfg(any(feature = "v1_18", feature = "dox"))]
     #[cfg_attr(feature = "dox", doc(cfg(feature = "v1_18")))]
     #[doc(alias = "select-element-track")]
-    fn connect_select_element_track<F: Fn(&Self, &Clip, &TrackElement) -> Track + 'static>(
+    fn connect_select_element_track<F: Fn(&Self, &Clip, &TrackElement) -> Option<Track> + 'static>(
         &self,
         f: F,
     ) -> SignalHandlerId;
@@ -646,13 +646,15 @@ impl<O: IsA<Timeline>> TimelineExt for O {
 
     #[cfg(any(feature = "v1_18", feature = "dox"))]
     #[cfg_attr(feature = "dox", doc(cfg(feature = "v1_18")))]
-    fn connect_select_element_track<F: Fn(&Self, &Clip, &TrackElement) -> Track + 'static>(
+    fn connect_select_element_track<
+        F: Fn(&Self, &Clip, &TrackElement) -> Option<Track> + 'static,
+    >(
         &self,
         f: F,
     ) -> SignalHandlerId {
         unsafe extern "C" fn select_element_track_trampoline<
             P: IsA<Timeline>,
-            F: Fn(&P, &Clip, &TrackElement) -> Track + 'static,
+            F: Fn(&P, &Clip, &TrackElement) -> Option<Track> + 'static,
         >(
             this: *mut ffi::GESTimeline,
             clip: *mut ffi::GESClip,
diff --git a/gstreamer-editing-services/src/auto/timeline_element.rs b/gstreamer-editing-services/src/auto/timeline_element.rs
index a6e5d91bb..efbc79759 100644
--- a/gstreamer-editing-services/src/auto/timeline_element.rs
+++ b/gstreamer-editing-services/src/auto/timeline_element.rs
@@ -50,7 +50,8 @@ pub trait TimelineElementExt: 'static {
     ) -> Result<(), glib::error::BoolError>;
 
     #[doc(alias = "ges_timeline_element_copy")]
-    fn copy(&self, deep: bool) -> Result<TimelineElement, glib::BoolError>;
+    #[must_use]
+    fn copy(&self, deep: bool) -> TimelineElement;
 
     #[cfg(any(feature = "v1_18", feature = "dox"))]
     #[cfg_attr(feature = "dox", doc(cfg(feature = "v1_18")))]
@@ -139,7 +140,7 @@ pub trait TimelineElementExt: 'static {
     #[doc(alias = "ges_timeline_element_get_toplevel_parent")]
     #[doc(alias = "get_toplevel_parent")]
     #[must_use]
-    fn toplevel_parent(&self) -> Option<TimelineElement>;
+    fn toplevel_parent(&self) -> TimelineElement;
 
     #[doc(alias = "ges_timeline_element_get_track_types")]
     #[doc(alias = "get_track_types")]
@@ -305,13 +306,12 @@ impl<O: IsA<TimelineElement>> TimelineElementExt for O {
         }
     }
 
-    fn copy(&self, deep: bool) -> Result<TimelineElement, glib::BoolError> {
+    fn copy(&self, deep: bool) -> TimelineElement {
         unsafe {
-            Option::<_>::from_glib_none(ffi::ges_timeline_element_copy(
+            from_glib_none(ffi::ges_timeline_element_copy(
                 self.as_ref().to_glib_none().0,
                 deep.into_glib(),
             ))
-            .ok_or_else(|| glib::bool_error!("Failed to copy timeline element"))
         }
     }
 
@@ -489,7 +489,7 @@ impl<O: IsA<TimelineElement>> TimelineElementExt for O {
         }
     }
 
-    fn toplevel_parent(&self) -> Option<TimelineElement> {
+    fn toplevel_parent(&self) -> TimelineElement {
         unsafe {
             from_glib_full(ffi::ges_timeline_element_get_toplevel_parent(
                 self.as_ref().to_glib_none().0,
diff --git a/gstreamer-editing-services/src/auto/title_clip.rs b/gstreamer-editing-services/src/auto/title_clip.rs
index 0aeb396d5..327bc0d10 100644
--- a/gstreamer-editing-services/src/auto/title_clip.rs
+++ b/gstreamer-editing-services/src/auto/title_clip.rs
@@ -90,7 +90,7 @@ pub trait TitleClipExt: 'static {
 
     #[deprecated = "Since 1.6"]
     #[doc(alias = "ges_title_clip_set_font_desc")]
-    fn set_font_desc(&self, font_desc: &str);
+    fn set_font_desc(&self, font_desc: Option<&str>);
 
     #[deprecated = "Since 1.6"]
     #[doc(alias = "ges_title_clip_set_halignment")]
@@ -98,7 +98,7 @@ pub trait TitleClipExt: 'static {
 
     #[deprecated = "Since 1.6"]
     #[doc(alias = "ges_title_clip_set_text")]
-    fn set_text(&self, text: &str);
+    fn set_text(&self, text: Option<&str>);
 
     #[deprecated = "Since 1.6"]
     #[doc(alias = "ges_title_clip_set_valignment")]
@@ -158,7 +158,7 @@ impl<O: IsA<TitleClip>> TitleClipExt for O {
 
     fn font_desc(&self) -> Option<glib::GString> {
         unsafe {
-            from_glib_none(ffi::ges_title_clip_get_font_desc(
+            from_glib_full(ffi::ges_title_clip_get_font_desc(
                 self.as_ref().to_glib_none().0,
             ))
         }
@@ -173,7 +173,7 @@ impl<O: IsA<TitleClip>> TitleClipExt for O {
     }
 
     fn text(&self) -> Option<glib::GString> {
-        unsafe { from_glib_none(ffi::ges_title_clip_get_text(self.as_ref().to_glib_none().0)) }
+        unsafe { from_glib_full(ffi::ges_title_clip_get_text(self.as_ref().to_glib_none().0)) }
     }
 
     fn text_color(&self) -> u32 {
@@ -208,7 +208,7 @@ impl<O: IsA<TitleClip>> TitleClipExt for O {
         }
     }
 
-    fn set_font_desc(&self, font_desc: &str) {
+    fn set_font_desc(&self, font_desc: Option<&str>) {
         unsafe {
             ffi::ges_title_clip_set_font_desc(
                 self.as_ref().to_glib_none().0,
@@ -223,7 +223,7 @@ impl<O: IsA<TitleClip>> TitleClipExt for O {
         }
     }
 
-    fn set_text(&self, text: &str) {
+    fn set_text(&self, text: Option<&str>) {
         unsafe {
             ffi::ges_title_clip_set_text(self.as_ref().to_glib_none().0, text.to_glib_none().0);
         }
diff --git a/gstreamer-editing-services/src/auto/title_source.rs b/gstreamer-editing-services/src/auto/title_source.rs
index 4011ad050..062dcacbe 100644
--- a/gstreamer-editing-services/src/auto/title_source.rs
+++ b/gstreamer-editing-services/src/auto/title_source.rs
@@ -66,13 +66,13 @@ pub trait TitleSourceExt: 'static {
     fn set_background_color(&self, color: u32);
 
     #[doc(alias = "ges_title_source_set_font_desc")]
-    fn set_font_desc(&self, font_desc: &str);
+    fn set_font_desc(&self, font_desc: Option<&str>);
 
     #[doc(alias = "ges_title_source_set_halignment")]
     fn set_halignment(&self, halign: TextHAlign);
 
     #[doc(alias = "ges_title_source_set_text")]
-    fn set_text(&self, text: &str);
+    fn set_text(&self, text: Option<&str>);
 
     #[doc(alias = "ges_title_source_set_text_color")]
     fn set_text_color(&self, color: u32);
@@ -142,7 +142,7 @@ impl<O: IsA<TitleSource>> TitleSourceExt for O {
         }
     }
 
-    fn set_font_desc(&self, font_desc: &str) {
+    fn set_font_desc(&self, font_desc: Option<&str>) {
         unsafe {
             ffi::ges_title_source_set_font_desc(
                 self.as_ref().to_glib_none().0,
@@ -160,7 +160,7 @@ impl<O: IsA<TitleSource>> TitleSourceExt for O {
         }
     }
 
-    fn set_text(&self, text: &str) {
+    fn set_text(&self, text: Option<&str>) {
         unsafe {
             ffi::ges_title_source_set_text(self.as_ref().to_glib_none().0, text.to_glib_none().0);
         }
diff --git a/gstreamer-editing-services/src/auto/track_element.rs b/gstreamer-editing-services/src/auto/track_element.rs
index f505bb2df..7775c05d2 100644
--- a/gstreamer-editing-services/src/auto/track_element.rs
+++ b/gstreamer-editing-services/src/auto/track_element.rs
@@ -95,11 +95,11 @@ pub trait TrackElementExt: 'static {
 
     #[doc(alias = "ges_track_element_get_gnlobject")]
     #[doc(alias = "get_gnlobject")]
-    fn gnlobject(&self) -> Option<gst::Element>;
+    fn gnlobject(&self) -> gst::Element;
 
     #[doc(alias = "ges_track_element_get_nleobject")]
     #[doc(alias = "get_nleobject")]
-    fn nleobject(&self) -> Option<gst::Element>;
+    fn nleobject(&self) -> gst::Element;
 
     #[doc(alias = "ges_track_element_get_track")]
     #[doc(alias = "get_track")]
@@ -324,7 +324,7 @@ impl<O: IsA<TrackElement>> TrackElementExt for O {
         }
     }
 
-    fn gnlobject(&self) -> Option<gst::Element> {
+    fn gnlobject(&self) -> gst::Element {
         unsafe {
             from_glib_none(ffi::ges_track_element_get_gnlobject(
                 self.as_ref().to_glib_none().0,
@@ -332,7 +332,7 @@ impl<O: IsA<TrackElement>> TrackElementExt for O {
         }
     }
 
-    fn nleobject(&self) -> Option<gst::Element> {
+    fn nleobject(&self) -> gst::Element {
         unsafe {
             from_glib_none(ffi::ges_track_element_get_nleobject(
                 self.as_ref().to_glib_none().0,
diff --git a/gstreamer-editing-services/src/auto/uri_clip.rs b/gstreamer-editing-services/src/auto/uri_clip.rs
index c35367e27..12883e024 100644
--- a/gstreamer-editing-services/src/auto/uri_clip.rs
+++ b/gstreamer-editing-services/src/auto/uri_clip.rs
@@ -42,7 +42,7 @@ impl UriClip {
 pub trait UriClipExt: 'static {
     #[doc(alias = "ges_uri_clip_get_uri")]
     #[doc(alias = "get_uri")]
-    fn uri(&self) -> Option<glib::GString>;
+    fn uri(&self) -> glib::GString;
 
     #[doc(alias = "ges_uri_clip_is_image")]
     fn is_image(&self) -> bool;
@@ -64,7 +64,7 @@ pub trait UriClipExt: 'static {
 }
 
 impl<O: IsA<UriClip>> UriClipExt for O {
-    fn uri(&self) -> Option<glib::GString> {
+    fn uri(&self) -> glib::GString {
         unsafe { from_glib_none(ffi::ges_uri_clip_get_uri(self.as_ref().to_glib_none().0)) }
     }
 
diff --git a/gstreamer-editing-services/src/auto/uri_clip_asset.rs b/gstreamer-editing-services/src/auto/uri_clip_asset.rs
index 33bd18db9..a27c6020f 100644
--- a/gstreamer-editing-services/src/auto/uri_clip_asset.rs
+++ b/gstreamer-editing-services/src/auto/uri_clip_asset.rs
@@ -81,7 +81,7 @@ pub trait UriClipAssetExt: 'static {
 
     #[doc(alias = "ges_uri_clip_asset_get_info")]
     #[doc(alias = "get_info")]
-    fn info(&self) -> Option<gst_pbutils::DiscovererInfo>;
+    fn info(&self) -> gst_pbutils::DiscovererInfo;
 
     #[cfg(any(feature = "v1_18", feature = "dox"))]
     #[cfg_attr(feature = "dox", doc(cfg(feature = "v1_18")))]
@@ -123,7 +123,7 @@ impl<O: IsA<UriClipAsset>> UriClipAssetExt for O {
         }
     }
 
-    fn info(&self) -> Option<gst_pbutils::DiscovererInfo> {
+    fn info(&self) -> gst_pbutils::DiscovererInfo {
         unsafe {
             from_glib_none(ffi::ges_uri_clip_asset_get_info(const_override(
                 self.as_ref().to_glib_none().0,
diff --git a/gstreamer-editing-services/src/auto/uri_source_asset.rs b/gstreamer-editing-services/src/auto/uri_source_asset.rs
index 3b6718b3b..cafa93639 100644
--- a/gstreamer-editing-services/src/auto/uri_source_asset.rs
+++ b/gstreamer-editing-services/src/auto/uri_source_asset.rs
@@ -26,15 +26,15 @@ impl UriSourceAsset {
 pub trait UriSourceAssetExt: 'static {
     #[doc(alias = "ges_uri_source_asset_get_filesource_asset")]
     #[doc(alias = "get_filesource_asset")]
-    fn filesource_asset(&self) -> Option<UriClipAsset>;
+    fn filesource_asset(&self) -> UriClipAsset;
 
     #[doc(alias = "ges_uri_source_asset_get_stream_info")]
     #[doc(alias = "get_stream_info")]
-    fn stream_info(&self) -> Option<gst_pbutils::DiscovererStreamInfo>;
+    fn stream_info(&self) -> gst_pbutils::DiscovererStreamInfo;
 
     #[doc(alias = "ges_uri_source_asset_get_stream_uri")]
     #[doc(alias = "get_stream_uri")]
-    fn stream_uri(&self) -> Option<glib::GString>;
+    fn stream_uri(&self) -> glib::GString;
 
     #[cfg(any(feature = "v1_18", feature = "dox"))]
     #[cfg_attr(feature = "dox", doc(cfg(feature = "v1_18")))]
@@ -43,7 +43,7 @@ pub trait UriSourceAssetExt: 'static {
 }
 
 impl<O: IsA<UriSourceAsset>> UriSourceAssetExt for O {
-    fn filesource_asset(&self) -> Option<UriClipAsset> {
+    fn filesource_asset(&self) -> UriClipAsset {
         unsafe {
             from_glib_none(ffi::ges_uri_source_asset_get_filesource_asset(
                 self.as_ref().to_glib_none().0,
@@ -51,7 +51,7 @@ impl<O: IsA<UriSourceAsset>> UriSourceAssetExt for O {
         }
     }
 
-    fn stream_info(&self) -> Option<gst_pbutils::DiscovererStreamInfo> {
+    fn stream_info(&self) -> gst_pbutils::DiscovererStreamInfo {
         unsafe {
             from_glib_none(ffi::ges_uri_source_asset_get_stream_info(
                 self.as_ref().to_glib_none().0,
@@ -59,7 +59,7 @@ impl<O: IsA<UriSourceAsset>> UriSourceAssetExt for O {
         }
     }
 
-    fn stream_uri(&self) -> Option<glib::GString> {
+    fn stream_uri(&self) -> glib::GString {
         unsafe {
             from_glib_none(ffi::ges_uri_source_asset_get_stream_uri(
                 self.as_ref().to_glib_none().0,
diff --git a/gstreamer-editing-services/src/auto/versions.txt b/gstreamer-editing-services/src/auto/versions.txt
index 4133cf20b..a18bf5ca8 100644
--- a/gstreamer-editing-services/src/auto/versions.txt
+++ b/gstreamer-editing-services/src/auto/versions.txt
@@ -1,3 +1,3 @@
-Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-editing-services/sys/Cargo.toml b/gstreamer-editing-services/sys/Cargo.toml
index a5b799ae2..35686dae4 100644
--- a/gstreamer-editing-services/sys/Cargo.toml
+++ b/gstreamer-editing-services/sys/Cargo.toml
@@ -33,7 +33,7 @@ v1_16 = []
 v1_18 = ["v1_16"]
 v1_20 = ["v1_18"]
 v1_22 = ["v1_20"]
-dox = []
+dox = ["glib/dox", "gobject/dox", "gio/dox", "gst/dox", "gst_pbutils/dox"]
 
 [lib]
 name = "gstreamer_editing_services_sys"
diff --git a/gstreamer-editing-services/sys/build.rs b/gstreamer-editing-services/sys/build.rs
index c8ef202cf..5762ce067 100644
--- a/gstreamer-editing-services/sys/build.rs
+++ b/gstreamer-editing-services/sys/build.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #[cfg(not(feature = "dox"))]
diff --git a/gstreamer-editing-services/sys/src/auto/versions.txt b/gstreamer-editing-services/sys/src/auto/versions.txt
new file mode 100644
index 000000000..a18bf5ca8
--- /dev/null
+++ b/gstreamer-editing-services/sys/src/auto/versions.txt
@@ -0,0 +1,3 @@
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-editing-services/sys/src/lib.rs b/gstreamer-editing-services/sys/src/lib.rs
index c7f74f682..df0ea307f 100644
--- a/gstreamer-editing-services/sys/src/lib.rs
+++ b/gstreamer-editing-services/sys/src/lib.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #![allow(non_camel_case_types, non_upper_case_globals, non_snake_case)]
diff --git a/gstreamer-editing-services/sys/tests/abi.rs b/gstreamer-editing-services/sys/tests/abi.rs
index d72165f75..8ed504443 100644
--- a/gstreamer-editing-services/sys/tests/abi.rs
+++ b/gstreamer-editing-services/sys/tests/abi.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 use gstreamer_editing_services_sys::*;
diff --git a/gstreamer-editing-services/sys/tests/constant.c b/gstreamer-editing-services/sys/tests/constant.c
index 01f8aee74..3abcd2b10 100644
--- a/gstreamer-editing-services/sys/tests/constant.c
+++ b/gstreamer-editing-services/sys/tests/constant.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-editing-services/sys/tests/layout.c b/gstreamer-editing-services/sys/tests/layout.c
index 486926b28..9c8083144 100644
--- a/gstreamer-editing-services/sys/tests/layout.c
+++ b/gstreamer-editing-services/sys/tests/layout.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-gl/egl/Gir.toml b/gstreamer-gl/egl/Gir.toml
index e83e276ea..1bb6f2f96 100644
--- a/gstreamer-gl/egl/Gir.toml
+++ b/gstreamer-gl/egl/Gir.toml
@@ -8,6 +8,7 @@ concurrency = "send+sync"
 generate_safety_asserts = true
 single_version_file = true
 generate_display_trait = false
+trust_return_value_nullability = true
 
 external_libraries = [
     "GLib",
@@ -18,9 +19,7 @@ external_libraries = [
     "GstVideo",
 ]
 
-generate = [
-    "GstGLEGL.GLDisplayEGL",
-]
+generate = []
 
 manual = [
     "GLib.Error",
@@ -52,3 +51,11 @@ ref_mode = "ref"
 name = "Gst.Structure"
 status = "manual"
 ref_mode = "ref"
+
+[[object]]
+name = "GstGLEGL.GLDisplayEGL"
+status = "generate"
+    [[object.function]]
+    name = "new"
+        [object.function.return]
+        nullable_return_is_error = "Failed to create EGL display"
diff --git a/gstreamer-gl/egl/src/auto/gl_display_egl.rs b/gstreamer-gl/egl/src/auto/gl_display_egl.rs
index 5e290a02f..915c24923 100644
--- a/gstreamer-gl/egl/src/auto/gl_display_egl.rs
+++ b/gstreamer-gl/egl/src/auto/gl_display_egl.rs
@@ -19,9 +19,12 @@ impl GLDisplayEGL {
     pub const NONE: Option<&'static GLDisplayEGL> = None;
 
     #[doc(alias = "gst_gl_display_egl_new")]
-    pub fn new() -> GLDisplayEGL {
+    pub fn new() -> Result<GLDisplayEGL, glib::BoolError> {
         assert_initialized_main_thread!();
-        unsafe { from_glib_full(ffi::gst_gl_display_egl_new()) }
+        unsafe {
+            Option::<_>::from_glib_full(ffi::gst_gl_display_egl_new())
+                .ok_or_else(|| glib::bool_error!("Failed to create EGL display"))
+        }
     }
 
     //#[doc(alias = "gst_gl_display_egl_new_with_egl_display")]
@@ -47,11 +50,5 @@ impl GLDisplayEGL {
     //}
 }
 
-impl Default for GLDisplayEGL {
-    fn default() -> Self {
-        Self::new()
-    }
-}
-
 unsafe impl Send for GLDisplayEGL {}
 unsafe impl Sync for GLDisplayEGL {}
diff --git a/gstreamer-gl/egl/src/auto/versions.txt b/gstreamer-gl/egl/src/auto/versions.txt
index 4133cf20b..a18bf5ca8 100644
--- a/gstreamer-gl/egl/src/auto/versions.txt
+++ b/gstreamer-gl/egl/src/auto/versions.txt
@@ -1,3 +1,3 @@
-Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-gl/egl/sys/Cargo.toml b/gstreamer-gl/egl/sys/Cargo.toml
index b5998ec30..5fde70d62 100644
--- a/gstreamer-gl/egl/sys/Cargo.toml
+++ b/gstreamer-gl/egl/sys/Cargo.toml
@@ -53,7 +53,7 @@ shell-words = "1.0.0"
 tempfile = "3"
 
 [features]
-dox = []
+dox = ["glib/dox", "gst_gl/dox"]
 v1_16 = []
 v1_18 = ["v1_16"]
 v1_20 = ["v1_18"]
diff --git a/gstreamer-gl/egl/sys/build.rs b/gstreamer-gl/egl/sys/build.rs
index c8ef202cf..5762ce067 100644
--- a/gstreamer-gl/egl/sys/build.rs
+++ b/gstreamer-gl/egl/sys/build.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #[cfg(not(feature = "dox"))]
diff --git a/gstreamer-gl/egl/sys/src/auto/versions.txt b/gstreamer-gl/egl/sys/src/auto/versions.txt
new file mode 100644
index 000000000..a18bf5ca8
--- /dev/null
+++ b/gstreamer-gl/egl/sys/src/auto/versions.txt
@@ -0,0 +1,3 @@
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-gl/egl/sys/src/lib.rs b/gstreamer-gl/egl/sys/src/lib.rs
index c94ceb091..ee4179900 100644
--- a/gstreamer-gl/egl/sys/src/lib.rs
+++ b/gstreamer-gl/egl/sys/src/lib.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #![allow(non_camel_case_types, non_upper_case_globals, non_snake_case)]
diff --git a/gstreamer-gl/egl/sys/tests/abi.rs b/gstreamer-gl/egl/sys/tests/abi.rs
index 02c4be55b..8aacecc16 100644
--- a/gstreamer-gl/egl/sys/tests/abi.rs
+++ b/gstreamer-gl/egl/sys/tests/abi.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 use gstreamer_gl_egl_sys::*;
diff --git a/gstreamer-gl/egl/sys/tests/constant.c b/gstreamer-gl/egl/sys/tests/constant.c
index e3ad944cb..c5dc0c48b 100644
--- a/gstreamer-gl/egl/sys/tests/constant.c
+++ b/gstreamer-gl/egl/sys/tests/constant.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-gl/egl/sys/tests/layout.c b/gstreamer-gl/egl/sys/tests/layout.c
index ec395d4f2..b63c2412a 100644
--- a/gstreamer-gl/egl/sys/tests/layout.c
+++ b/gstreamer-gl/egl/sys/tests/layout.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-gl/src/auto/gl_color_convert.rs b/gstreamer-gl/src/auto/gl_color_convert.rs
index b8a2553e1..26ff96770 100644
--- a/gstreamer-gl/src/auto/gl_color_convert.rs
+++ b/gstreamer-gl/src/auto/gl_color_convert.rs
@@ -51,7 +51,7 @@ impl GLColorConvert {
         direction: gst::PadDirection,
         caps: &gst::Caps,
         filter: &gst::Caps,
-    ) -> Option<gst::Caps> {
+    ) -> gst::Caps {
         skip_assert_initialized!();
         unsafe {
             from_glib_full(ffi::gst_gl_color_convert_transform_caps(
diff --git a/gstreamer-gl/src/auto/gl_display.rs b/gstreamer-gl/src/auto/gl_display.rs
index b927a35fd..442f54562 100644
--- a/gstreamer-gl/src/auto/gl_display.rs
+++ b/gstreamer-gl/src/auto/gl_display.rs
@@ -93,7 +93,9 @@ pub trait GLDisplayExt: 'static {
     //fn retrieve_window(&self, data: /*Unimplemented*/Option<Basic: Pointer>, compare_func: /*Unimplemented*/FnMut(/*Unimplemented*/Option<Basic: Pointer>, /*Unimplemented*/Option<Basic: Pointer>) -> i32) -> Option<GLWindow>;
 
     #[doc(alias = "create-context")]
-    fn connect_create_context<F: Fn(&Self, &GLContext) -> GLContext + Send + Sync + 'static>(
+    fn connect_create_context<
+        F: Fn(&Self, &GLContext) -> Option<GLContext> + Send + Sync + 'static,
+    >(
         &self,
         f: F,
     ) -> SignalHandlerId;
@@ -202,13 +204,15 @@ impl<O: IsA<GLDisplay>> GLDisplayExt for O {
     //    unsafe { TODO: call ffi:gst_gl_display_retrieve_window() }
     //}
 
-    fn connect_create_context<F: Fn(&Self, &GLContext) -> GLContext + Send + Sync + 'static>(
+    fn connect_create_context<
+        F: Fn(&Self, &GLContext) -> Option<GLContext> + Send + Sync + 'static,
+    >(
         &self,
         f: F,
     ) -> SignalHandlerId {
         unsafe extern "C" fn create_context_trampoline<
             P: IsA<GLDisplay>,
-            F: Fn(&P, &GLContext) -> GLContext + Send + Sync + 'static,
+            F: Fn(&P, &GLContext) -> Option<GLContext> + Send + Sync + 'static,
         >(
             this: *mut ffi::GstGLDisplay,
             context: *mut ffi::GstGLContext,
diff --git a/gstreamer-gl/src/auto/gl_memory_allocator.rs b/gstreamer-gl/src/auto/gl_memory_allocator.rs
index 12d4a3823..e61c5bffd 100644
--- a/gstreamer-gl/src/auto/gl_memory_allocator.rs
+++ b/gstreamer-gl/src/auto/gl_memory_allocator.rs
@@ -22,7 +22,7 @@ impl GLMemoryAllocator {
 
     #[doc(alias = "gst_gl_memory_allocator_get_default")]
     #[doc(alias = "get_default")]
-    pub fn default(context: &impl IsA<GLContext>) -> Option<GLMemoryAllocator> {
+    pub fn default(context: &impl IsA<GLContext>) -> GLMemoryAllocator {
         skip_assert_initialized!();
         unsafe {
             from_glib_full(ffi::gst_gl_memory_allocator_get_default(
diff --git a/gstreamer-gl/src/auto/gl_overlay_compositor.rs b/gstreamer-gl/src/auto/gl_overlay_compositor.rs
index 92bf04759..25c2074f1 100644
--- a/gstreamer-gl/src/auto/gl_overlay_compositor.rs
+++ b/gstreamer-gl/src/auto/gl_overlay_compositor.rs
@@ -75,7 +75,7 @@ impl GLOverlayCompositor {
     }
 
     #[doc(alias = "gst_gl_overlay_compositor_add_caps")]
-    pub fn add_caps(caps: &gst::Caps) -> Option<gst::Caps> {
+    pub fn add_caps(caps: &gst::Caps) -> gst::Caps {
         assert_initialized_main_thread!();
         unsafe {
             from_glib_full(ffi::gst_gl_overlay_compositor_add_caps(
diff --git a/gstreamer-gl/src/auto/gl_shader.rs b/gstreamer-gl/src/auto/gl_shader.rs
index eaf3b4c7f..81f1a53a6 100644
--- a/gstreamer-gl/src/auto/gl_shader.rs
+++ b/gstreamer-gl/src/auto/gl_shader.rs
@@ -383,7 +383,7 @@ impl GLShader {
         context: &impl IsA<GLContext>,
         version: GLSLVersion,
         profile: GLSLProfile,
-    ) -> Option<glib::GString> {
+    ) -> glib::GString {
         skip_assert_initialized!();
         unsafe {
             from_glib_full(ffi::gst_gl_shader_string_fragment_external_oes_get_default(
@@ -401,7 +401,7 @@ impl GLShader {
         context: &impl IsA<GLContext>,
         version: GLSLVersion,
         profile: GLSLProfile,
-    ) -> Option<glib::GString> {
+    ) -> glib::GString {
         skip_assert_initialized!();
         unsafe {
             from_glib_full(ffi::gst_gl_shader_string_fragment_get_default(
@@ -419,7 +419,7 @@ impl GLShader {
         context: &impl IsA<GLContext>,
         version: GLSLVersion,
         profile: GLSLProfile,
-    ) -> Option<glib::GString> {
+    ) -> glib::GString {
         skip_assert_initialized!();
         unsafe {
             from_glib_none(ffi::gst_gl_shader_string_get_highest_precision(
diff --git a/gstreamer-gl/src/auto/gl_upload.rs b/gstreamer-gl/src/auto/gl_upload.rs
index 12fd83330..a118e3790 100644
--- a/gstreamer-gl/src/auto/gl_upload.rs
+++ b/gstreamer-gl/src/auto/gl_upload.rs
@@ -70,7 +70,7 @@ impl GLUpload {
         direction: gst::PadDirection,
         caps: &gst::Caps,
         filter: &gst::Caps,
-    ) -> Option<gst::Caps> {
+    ) -> gst::Caps {
         unsafe {
             from_glib_full(ffi::gst_gl_upload_transform_caps(
                 self.to_glib_none().0,
diff --git a/gstreamer-gl/src/auto/gl_window.rs b/gstreamer-gl/src/auto/gl_window.rs
index 0b730cb0a..12830a08a 100644
--- a/gstreamer-gl/src/auto/gl_window.rs
+++ b/gstreamer-gl/src/auto/gl_window.rs
@@ -47,7 +47,7 @@ pub trait GLWindowExt: 'static {
 
     #[doc(alias = "gst_gl_window_get_context")]
     #[doc(alias = "get_context")]
-    fn context(&self) -> Option<GLContext>;
+    fn context(&self) -> GLContext;
 
     #[doc(alias = "gst_gl_window_get_surface_dimensions")]
     #[doc(alias = "get_surface_dimensions")]
@@ -145,7 +145,7 @@ impl<O: IsA<GLWindow>> GLWindowExt for O {
         }
     }
 
-    fn context(&self) -> Option<GLContext> {
+    fn context(&self) -> GLContext {
         unsafe {
             from_glib_full(ffi::gst_gl_window_get_context(
                 self.as_ref().to_glib_none().0,
diff --git a/gstreamer-gl/src/auto/versions.txt b/gstreamer-gl/src/auto/versions.txt
index 4133cf20b..a18bf5ca8 100644
--- a/gstreamer-gl/src/auto/versions.txt
+++ b/gstreamer-gl/src/auto/versions.txt
@@ -1,3 +1,3 @@
-Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-gl/sys/Cargo.toml b/gstreamer-gl/sys/Cargo.toml
index 7896cc09b..bc5166707 100644
--- a/gstreamer-gl/sys/Cargo.toml
+++ b/gstreamer-gl/sys/Cargo.toml
@@ -33,7 +33,7 @@ v1_16 = []
 v1_18 = ["v1_16"]
 v1_20 = ["v1_18"]
 v1_22 = ["v1_20"]
-dox = []
+dox = ["glib/dox", "gobject/dox", "gst/dox", "gst_base/dox", "gst_video/dox"]
 
 [lib]
 name = "gstreamer_gl_sys"
diff --git a/gstreamer-gl/sys/build.rs b/gstreamer-gl/sys/build.rs
index c8ef202cf..5762ce067 100644
--- a/gstreamer-gl/sys/build.rs
+++ b/gstreamer-gl/sys/build.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #[cfg(not(feature = "dox"))]
diff --git a/gstreamer-gl/sys/src/auto/versions.txt b/gstreamer-gl/sys/src/auto/versions.txt
new file mode 100644
index 000000000..a18bf5ca8
--- /dev/null
+++ b/gstreamer-gl/sys/src/auto/versions.txt
@@ -0,0 +1,3 @@
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-gl/sys/src/lib.rs b/gstreamer-gl/sys/src/lib.rs
index 2acad4560..3e93c8f9b 100644
--- a/gstreamer-gl/sys/src/lib.rs
+++ b/gstreamer-gl/sys/src/lib.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #![allow(non_camel_case_types, non_upper_case_globals, non_snake_case)]
diff --git a/gstreamer-gl/sys/tests/abi.rs b/gstreamer-gl/sys/tests/abi.rs
index de921761a..faf20292d 100644
--- a/gstreamer-gl/sys/tests/abi.rs
+++ b/gstreamer-gl/sys/tests/abi.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 use gstreamer_gl_sys::*;
diff --git a/gstreamer-gl/sys/tests/constant.c b/gstreamer-gl/sys/tests/constant.c
index c14b1131e..2fdea7083 100644
--- a/gstreamer-gl/sys/tests/constant.c
+++ b/gstreamer-gl/sys/tests/constant.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-gl/sys/tests/layout.c b/gstreamer-gl/sys/tests/layout.c
index fcb8629e6..cdbd6c976 100644
--- a/gstreamer-gl/sys/tests/layout.c
+++ b/gstreamer-gl/sys/tests/layout.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-gl/wayland/Gir.toml b/gstreamer-gl/wayland/Gir.toml
index bb7acd39d..2e18a9982 100644
--- a/gstreamer-gl/wayland/Gir.toml
+++ b/gstreamer-gl/wayland/Gir.toml
@@ -8,6 +8,7 @@ concurrency = "send+sync"
 generate_safety_asserts = true
 single_version_file = true
 generate_display_trait = false
+trust_return_value_nullability = true
 
 external_libraries = [
     "GLib",
@@ -18,9 +19,7 @@ external_libraries = [
     "GstVideo",
 ]
 
-generate = [
-    "GstGLWayland.GLDisplayWayland",
-]
+generate = []
 
 manual = [
     "GLib.Error",
@@ -51,3 +50,11 @@ ref_mode = "ref"
 name = "Gst.Structure"
 status = "manual"
 ref_mode = "ref"
+
+[[object]]
+name = "GstGLWayland.GLDisplayWayland"
+status = "generate"
+    [[object.function]]
+    name = "new"
+        [object.function.return]
+        nullable_return_is_error = "Failed to create Wayland display"
diff --git a/gstreamer-gl/wayland/src/auto/gl_display_wayland.rs b/gstreamer-gl/wayland/src/auto/gl_display_wayland.rs
index d7ff5348e..932707b15 100644
--- a/gstreamer-gl/wayland/src/auto/gl_display_wayland.rs
+++ b/gstreamer-gl/wayland/src/auto/gl_display_wayland.rs
@@ -18,9 +18,12 @@ impl GLDisplayWayland {
     pub const NONE: Option<&'static GLDisplayWayland> = None;
 
     #[doc(alias = "gst_gl_display_wayland_new")]
-    pub fn new(name: Option<&str>) -> GLDisplayWayland {
+    pub fn new(name: Option<&str>) -> Result<GLDisplayWayland, glib::BoolError> {
         assert_initialized_main_thread!();
-        unsafe { from_glib_full(ffi::gst_gl_display_wayland_new(name.to_glib_none().0)) }
+        unsafe {
+            Option::<_>::from_glib_full(ffi::gst_gl_display_wayland_new(name.to_glib_none().0))
+                .ok_or_else(|| glib::bool_error!("Failed to create Wayland display"))
+        }
     }
 
     //#[doc(alias = "gst_gl_display_wayland_new_with_display")]
diff --git a/gstreamer-gl/wayland/src/auto/versions.txt b/gstreamer-gl/wayland/src/auto/versions.txt
index 4133cf20b..a18bf5ca8 100644
--- a/gstreamer-gl/wayland/src/auto/versions.txt
+++ b/gstreamer-gl/wayland/src/auto/versions.txt
@@ -1,3 +1,3 @@
-Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-gl/wayland/sys/Cargo.toml b/gstreamer-gl/wayland/sys/Cargo.toml
index e52e045e6..0ab08ad71 100644
--- a/gstreamer-gl/wayland/sys/Cargo.toml
+++ b/gstreamer-gl/wayland/sys/Cargo.toml
@@ -53,7 +53,7 @@ shell-words = "1.0.0"
 tempfile = "3"
 
 [features]
-dox = []
+dox = ["glib/dox", "gst_gl/dox"]
 v1_16 = []
 v1_18 = ["v1_16"]
 v1_20 = ["v1_18"]
diff --git a/gstreamer-gl/wayland/sys/build.rs b/gstreamer-gl/wayland/sys/build.rs
index c8ef202cf..5762ce067 100644
--- a/gstreamer-gl/wayland/sys/build.rs
+++ b/gstreamer-gl/wayland/sys/build.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #[cfg(not(feature = "dox"))]
diff --git a/gstreamer-gl/wayland/sys/src/auto/versions.txt b/gstreamer-gl/wayland/sys/src/auto/versions.txt
new file mode 100644
index 000000000..a18bf5ca8
--- /dev/null
+++ b/gstreamer-gl/wayland/sys/src/auto/versions.txt
@@ -0,0 +1,3 @@
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-gl/wayland/sys/src/lib.rs b/gstreamer-gl/wayland/sys/src/lib.rs
index bb2b15590..d65e534c7 100644
--- a/gstreamer-gl/wayland/sys/src/lib.rs
+++ b/gstreamer-gl/wayland/sys/src/lib.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #![allow(non_camel_case_types, non_upper_case_globals, non_snake_case)]
diff --git a/gstreamer-gl/wayland/sys/tests/abi.rs b/gstreamer-gl/wayland/sys/tests/abi.rs
index 9a0f44ac1..23699f625 100644
--- a/gstreamer-gl/wayland/sys/tests/abi.rs
+++ b/gstreamer-gl/wayland/sys/tests/abi.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 use gstreamer_gl_wayland_sys::*;
diff --git a/gstreamer-gl/wayland/sys/tests/constant.c b/gstreamer-gl/wayland/sys/tests/constant.c
index 91dd07916..d37bc26f5 100644
--- a/gstreamer-gl/wayland/sys/tests/constant.c
+++ b/gstreamer-gl/wayland/sys/tests/constant.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-gl/wayland/sys/tests/layout.c b/gstreamer-gl/wayland/sys/tests/layout.c
index 8878902db..5e957c04e 100644
--- a/gstreamer-gl/wayland/sys/tests/layout.c
+++ b/gstreamer-gl/wayland/sys/tests/layout.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-gl/x11/Gir.toml b/gstreamer-gl/x11/Gir.toml
index 1a43bca9f..5d851d517 100644
--- a/gstreamer-gl/x11/Gir.toml
+++ b/gstreamer-gl/x11/Gir.toml
@@ -8,6 +8,7 @@ concurrency = "send+sync"
 generate_safety_asserts = true
 single_version_file = true
 generate_display_trait = false
+trust_return_value_nullability = true
 
 external_libraries = [
     "GLib",
@@ -18,9 +19,7 @@ external_libraries = [
     "GstVideo",
 ]
 
-generate = [
-    "GstGLX11.GLDisplayX11",
-]
+generate = []
 
 manual = [
     "GLib.Error",
@@ -51,3 +50,11 @@ ref_mode = "ref"
 name = "Gst.Structure"
 status = "manual"
 ref_mode = "ref"
+
+[[object]]
+name = "GstGLX11.GLDisplayX11"
+status = "generate"
+    [[object.function]]
+    name = "new"
+        [object.function.return]
+        nullable_return_is_error = "Failed to create X11 display"
diff --git a/gstreamer-gl/x11/src/auto/gl_display_x11.rs b/gstreamer-gl/x11/src/auto/gl_display_x11.rs
index 4df94d1fc..a0be99443 100644
--- a/gstreamer-gl/x11/src/auto/gl_display_x11.rs
+++ b/gstreamer-gl/x11/src/auto/gl_display_x11.rs
@@ -18,9 +18,12 @@ impl GLDisplayX11 {
     pub const NONE: Option<&'static GLDisplayX11> = None;
 
     #[doc(alias = "gst_gl_display_x11_new")]
-    pub fn new(name: Option<&str>) -> GLDisplayX11 {
+    pub fn new(name: Option<&str>) -> Result<GLDisplayX11, glib::BoolError> {
         assert_initialized_main_thread!();
-        unsafe { from_glib_full(ffi::gst_gl_display_x11_new(name.to_glib_none().0)) }
+        unsafe {
+            Option::<_>::from_glib_full(ffi::gst_gl_display_x11_new(name.to_glib_none().0))
+                .ok_or_else(|| glib::bool_error!("Failed to create X11 display"))
+        }
     }
 
     //#[doc(alias = "gst_gl_display_x11_new_with_display")]
diff --git a/gstreamer-gl/x11/src/auto/versions.txt b/gstreamer-gl/x11/src/auto/versions.txt
index 4133cf20b..a18bf5ca8 100644
--- a/gstreamer-gl/x11/src/auto/versions.txt
+++ b/gstreamer-gl/x11/src/auto/versions.txt
@@ -1,3 +1,3 @@
-Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-gl/x11/sys/Cargo.toml b/gstreamer-gl/x11/sys/Cargo.toml
index eeba3facf..db9aa3dba 100644
--- a/gstreamer-gl/x11/sys/Cargo.toml
+++ b/gstreamer-gl/x11/sys/Cargo.toml
@@ -53,7 +53,7 @@ shell-words = "1.0.0"
 tempfile = "3"
 
 [features]
-dox = []
+dox = ["glib/dox", "gst_gl/dox"]
 v1_16 = []
 v1_18 = ["v1_16"]
 v1_20 = ["v1_18"]
diff --git a/gstreamer-gl/x11/sys/build.rs b/gstreamer-gl/x11/sys/build.rs
index c8ef202cf..5762ce067 100644
--- a/gstreamer-gl/x11/sys/build.rs
+++ b/gstreamer-gl/x11/sys/build.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #[cfg(not(feature = "dox"))]
diff --git a/gstreamer-gl/x11/sys/src/auto/versions.txt b/gstreamer-gl/x11/sys/src/auto/versions.txt
new file mode 100644
index 000000000..a18bf5ca8
--- /dev/null
+++ b/gstreamer-gl/x11/sys/src/auto/versions.txt
@@ -0,0 +1,3 @@
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-gl/x11/sys/src/lib.rs b/gstreamer-gl/x11/sys/src/lib.rs
index a058d3d4c..749f8d784 100644
--- a/gstreamer-gl/x11/sys/src/lib.rs
+++ b/gstreamer-gl/x11/sys/src/lib.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #![allow(non_camel_case_types, non_upper_case_globals, non_snake_case)]
diff --git a/gstreamer-gl/x11/sys/tests/abi.rs b/gstreamer-gl/x11/sys/tests/abi.rs
index 0d0382e2c..12f4c940c 100644
--- a/gstreamer-gl/x11/sys/tests/abi.rs
+++ b/gstreamer-gl/x11/sys/tests/abi.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 use gstreamer_gl_x11_sys::*;
diff --git a/gstreamer-gl/x11/sys/tests/constant.c b/gstreamer-gl/x11/sys/tests/constant.c
index 91dd07916..d37bc26f5 100644
--- a/gstreamer-gl/x11/sys/tests/constant.c
+++ b/gstreamer-gl/x11/sys/tests/constant.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-gl/x11/sys/tests/layout.c b/gstreamer-gl/x11/sys/tests/layout.c
index c99c9c76e..77394fd7f 100644
--- a/gstreamer-gl/x11/sys/tests/layout.c
+++ b/gstreamer-gl/x11/sys/tests/layout.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-mpegts/src/auto/versions.txt b/gstreamer-mpegts/src/auto/versions.txt
index 4133cf20b..a18bf5ca8 100644
--- a/gstreamer-mpegts/src/auto/versions.txt
+++ b/gstreamer-mpegts/src/auto/versions.txt
@@ -1,3 +1,3 @@
-Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-mpegts/sys/Cargo.toml b/gstreamer-mpegts/sys/Cargo.toml
index 4ad79fc72..d0cc64e83 100644
--- a/gstreamer-mpegts/sys/Cargo.toml
+++ b/gstreamer-mpegts/sys/Cargo.toml
@@ -60,4 +60,4 @@ v1_16 = []
 v1_18 = ["v1_16"]
 v1_20 = ["v1_18"]
 v1_22 = ["v1_20"]
-dox = []
+dox = ["glib/dox", "gst/dox"]
diff --git a/gstreamer-mpegts/sys/build.rs b/gstreamer-mpegts/sys/build.rs
index c8ef202cf..5762ce067 100644
--- a/gstreamer-mpegts/sys/build.rs
+++ b/gstreamer-mpegts/sys/build.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #[cfg(not(feature = "dox"))]
diff --git a/gstreamer-mpegts/sys/src/auto/versions.txt b/gstreamer-mpegts/sys/src/auto/versions.txt
new file mode 100644
index 000000000..a18bf5ca8
--- /dev/null
+++ b/gstreamer-mpegts/sys/src/auto/versions.txt
@@ -0,0 +1,3 @@
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-mpegts/sys/src/lib.rs b/gstreamer-mpegts/sys/src/lib.rs
index a433d2d7c..86dc481f3 100644
--- a/gstreamer-mpegts/sys/src/lib.rs
+++ b/gstreamer-mpegts/sys/src/lib.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #![allow(non_camel_case_types, non_upper_case_globals, non_snake_case)]
diff --git a/gstreamer-mpegts/sys/tests/abi.rs b/gstreamer-mpegts/sys/tests/abi.rs
index 2e1543a63..f4618ded6 100644
--- a/gstreamer-mpegts/sys/tests/abi.rs
+++ b/gstreamer-mpegts/sys/tests/abi.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 use gstreamer_mpegts_sys::*;
diff --git a/gstreamer-mpegts/sys/tests/constant.c b/gstreamer-mpegts/sys/tests/constant.c
index 015417c13..64ccf27ca 100644
--- a/gstreamer-mpegts/sys/tests/constant.c
+++ b/gstreamer-mpegts/sys/tests/constant.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-mpegts/sys/tests/layout.c b/gstreamer-mpegts/sys/tests/layout.c
index e1e7c3c0d..597e517d9 100644
--- a/gstreamer-mpegts/sys/tests/layout.c
+++ b/gstreamer-mpegts/sys/tests/layout.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-net/src/auto/net_time_provider.rs b/gstreamer-net/src/auto/net_time_provider.rs
index 47356ab87..cf5e10f81 100644
--- a/gstreamer-net/src/auto/net_time_provider.rs
+++ b/gstreamer-net/src/auto/net_time_provider.rs
@@ -24,14 +24,19 @@ glib::wrapper! {
 
 impl NetTimeProvider {
     #[doc(alias = "gst_net_time_provider_new")]
-    pub fn new(clock: &impl IsA<gst::Clock>, address: Option<&str>, port: i32) -> NetTimeProvider {
+    pub fn new(
+        clock: &impl IsA<gst::Clock>,
+        address: Option<&str>,
+        port: i32,
+    ) -> Result<NetTimeProvider, glib::BoolError> {
         assert_initialized_main_thread!();
         unsafe {
-            from_glib_full(ffi::gst_net_time_provider_new(
+            Option::<_>::from_glib_full(ffi::gst_net_time_provider_new(
                 clock.as_ref().to_glib_none().0,
                 address.to_glib_none().0,
                 port,
             ))
+            .ok_or_else(|| glib::bool_error!("Failed to create NetTimeProvider"))
         }
     }
 
diff --git a/gstreamer-net/src/auto/versions.txt b/gstreamer-net/src/auto/versions.txt
index 4133cf20b..a18bf5ca8 100644
--- a/gstreamer-net/src/auto/versions.txt
+++ b/gstreamer-net/src/auto/versions.txt
@@ -1,3 +1,3 @@
-Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-net/sys/Cargo.toml b/gstreamer-net/sys/Cargo.toml
index 19df85d39..f28a53077 100644
--- a/gstreamer-net/sys/Cargo.toml
+++ b/gstreamer-net/sys/Cargo.toml
@@ -25,7 +25,7 @@ v1_16 = []
 v1_18 = ["v1_16"]
 v1_20 = ["v1_18"]
 v1_22 = ["v1_20"]
-dox = []
+dox = ["glib/dox", "gio/dox", "gst/dox"]
 
 [lib]
 name = "gstreamer_net_sys"
diff --git a/gstreamer-net/sys/build.rs b/gstreamer-net/sys/build.rs
index c8ef202cf..5762ce067 100644
--- a/gstreamer-net/sys/build.rs
+++ b/gstreamer-net/sys/build.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #[cfg(not(feature = "dox"))]
diff --git a/gstreamer-net/sys/src/auto/versions.txt b/gstreamer-net/sys/src/auto/versions.txt
new file mode 100644
index 000000000..a18bf5ca8
--- /dev/null
+++ b/gstreamer-net/sys/src/auto/versions.txt
@@ -0,0 +1,3 @@
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-net/sys/src/lib.rs b/gstreamer-net/sys/src/lib.rs
index 0e44ab81c..dd256a12f 100644
--- a/gstreamer-net/sys/src/lib.rs
+++ b/gstreamer-net/sys/src/lib.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #![allow(non_camel_case_types, non_upper_case_globals, non_snake_case)]
diff --git a/gstreamer-net/sys/tests/abi.rs b/gstreamer-net/sys/tests/abi.rs
index e471d2cc5..f3029f21d 100644
--- a/gstreamer-net/sys/tests/abi.rs
+++ b/gstreamer-net/sys/tests/abi.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 use gstreamer_net_sys::*;
diff --git a/gstreamer-net/sys/tests/constant.c b/gstreamer-net/sys/tests/constant.c
index 95fce5639..c13c427de 100644
--- a/gstreamer-net/sys/tests/constant.c
+++ b/gstreamer-net/sys/tests/constant.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-net/sys/tests/layout.c b/gstreamer-net/sys/tests/layout.c
index 6a494365b..e84b31f6e 100644
--- a/gstreamer-net/sys/tests/layout.c
+++ b/gstreamer-net/sys/tests/layout.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-pbutils/src/auto/discoverer_info.rs b/gstreamer-pbutils/src/auto/discoverer_info.rs
index 98cbaf9ff..99c09150b 100644
--- a/gstreamer-pbutils/src/auto/discoverer_info.rs
+++ b/gstreamer-pbutils/src/auto/discoverer_info.rs
@@ -142,7 +142,7 @@ impl DiscovererInfo {
 
     #[doc(alias = "gst_discoverer_info_get_uri")]
     #[doc(alias = "get_uri")]
-    pub fn uri(&self) -> Option<glib::GString> {
+    pub fn uri(&self) -> glib::GString {
         unsafe { from_glib_none(ffi::gst_discoverer_info_get_uri(self.to_glib_none().0)) }
     }
 
@@ -157,27 +157,22 @@ impl DiscovererInfo {
     }
 
     #[doc(alias = "gst_discoverer_info_to_variant")]
-    pub fn to_variant(
-        &self,
-        flags: DiscovererSerializeFlags,
-    ) -> Result<glib::Variant, glib::BoolError> {
+    pub fn to_variant(&self, flags: DiscovererSerializeFlags) -> glib::Variant {
         unsafe {
-            Option::<_>::from_glib_full(ffi::gst_discoverer_info_to_variant(
+            from_glib_full(ffi::gst_discoverer_info_to_variant(
                 self.to_glib_none().0,
                 flags.into_glib(),
             ))
-            .ok_or_else(|| glib::bool_error!("Failed to serialize DiscovererInfo to Variant"))
         }
     }
 
     #[doc(alias = "gst_discoverer_info_from_variant")]
-    pub fn from_variant(variant: &glib::Variant) -> Result<DiscovererInfo, glib::BoolError> {
+    pub fn from_variant(variant: &glib::Variant) -> DiscovererInfo {
         assert_initialized_main_thread!();
         unsafe {
-            Option::<_>::from_glib_full(ffi::gst_discoverer_info_from_variant(
+            from_glib_full(ffi::gst_discoverer_info_from_variant(
                 variant.to_glib_none().0,
             ))
-            .ok_or_else(|| glib::bool_error!("Failed to deserialize DiscovererInfo from Variant"))
         }
     }
 }
diff --git a/gstreamer-pbutils/src/auto/discoverer_stream_info.rs b/gstreamer-pbutils/src/auto/discoverer_stream_info.rs
index e2696f530..6fc4a9a85 100644
--- a/gstreamer-pbutils/src/auto/discoverer_stream_info.rs
+++ b/gstreamer-pbutils/src/auto/discoverer_stream_info.rs
@@ -43,7 +43,7 @@ pub trait DiscovererStreamInfoExt: 'static {
 
     #[doc(alias = "gst_discoverer_stream_info_get_stream_id")]
     #[doc(alias = "get_stream_id")]
-    fn stream_id(&self) -> Option<glib::GString>;
+    fn stream_id(&self) -> glib::GString;
 
     #[cfg(any(feature = "v1_20", feature = "dox"))]
     #[cfg_attr(feature = "dox", doc(cfg(feature = "v1_20")))]
@@ -97,7 +97,7 @@ impl<O: IsA<DiscovererStreamInfo>> DiscovererStreamInfoExt for O {
         }
     }
 
-    fn stream_id(&self) -> Option<glib::GString> {
+    fn stream_id(&self) -> glib::GString {
         unsafe {
             from_glib_none(ffi::gst_discoverer_stream_info_get_stream_id(
                 self.as_ref().to_glib_none().0,
diff --git a/gstreamer-pbutils/src/auto/encoding_profile.rs b/gstreamer-pbutils/src/auto/encoding_profile.rs
index 9293d5881..eae304eb2 100644
--- a/gstreamer-pbutils/src/auto/encoding_profile.rs
+++ b/gstreamer-pbutils/src/auto/encoding_profile.rs
@@ -116,7 +116,7 @@ pub trait EncodingProfileExt: 'static {
 
     #[doc(alias = "gst_encoding_profile_get_type_nick")]
     #[doc(alias = "get_type_nick")]
-    fn type_nick(&self) -> Option<glib::GString>;
+    fn type_nick(&self) -> glib::GString;
 
     #[doc(alias = "gst_encoding_profile_is_enabled")]
     fn is_enabled(&self) -> bool;
@@ -220,7 +220,7 @@ impl<O: IsA<EncodingProfile>> EncodingProfileExt for O {
         }
     }
 
-    fn type_nick(&self) -> Option<glib::GString> {
+    fn type_nick(&self) -> glib::GString {
         unsafe {
             from_glib_none(ffi::gst_encoding_profile_get_type_nick(
                 self.as_ref().to_glib_none().0,
diff --git a/gstreamer-pbutils/src/auto/encoding_target.rs b/gstreamer-pbutils/src/auto/encoding_target.rs
index d5cc53b51..c1be548b3 100644
--- a/gstreamer-pbutils/src/auto/encoding_target.rs
+++ b/gstreamer-pbutils/src/auto/encoding_target.rs
@@ -24,15 +24,16 @@ impl EncodingTarget {
         category: &str,
         description: &str,
         profiles: &[EncodingProfile],
-    ) -> EncodingTarget {
+    ) -> Result<EncodingTarget, glib::BoolError> {
         assert_initialized_main_thread!();
         unsafe {
-            from_glib_full(ffi::gst_encoding_target_new(
+            Option::<_>::from_glib_full(ffi::gst_encoding_target_new(
                 name.to_glib_none().0,
                 category.to_glib_none().0,
                 description.to_glib_none().0,
                 profiles.to_glib_none().0,
             ))
+            .ok_or_else(|| glib::bool_error!("Failed to create EncodingTarget"))
         }
     }
 
@@ -62,7 +63,7 @@ impl EncodingTarget {
     #[cfg_attr(feature = "dox", doc(cfg(feature = "v1_18")))]
     #[doc(alias = "gst_encoding_target_get_path")]
     #[doc(alias = "get_path")]
-    pub fn path(&self) -> Option<glib::GString> {
+    pub fn path(&self) -> Option<std::path::PathBuf> {
         unsafe { from_glib_none(ffi::gst_encoding_target_get_path(self.to_glib_none().0)) }
     }
 
diff --git a/gstreamer-pbutils/src/auto/functions.rs b/gstreamer-pbutils/src/auto/functions.rs
index 37af8b65c..2e9628269 100644
--- a/gstreamer-pbutils/src/auto/functions.rs
+++ b/gstreamer-pbutils/src/auto/functions.rs
@@ -244,15 +244,12 @@ pub fn pb_utils_get_caps_description_flags(caps: &gst::Caps) -> PbUtilsCapsDescr
 }
 
 #[doc(alias = "gst_pb_utils_get_element_description")]
-pub fn pb_utils_get_element_description(
-    factory_name: &str,
-) -> Result<glib::GString, glib::BoolError> {
+pub fn pb_utils_get_element_description(factory_name: &str) -> glib::GString {
     assert_initialized_main_thread!();
     unsafe {
-        Option::<_>::from_glib_full(ffi::gst_pb_utils_get_element_description(
+        from_glib_full(ffi::gst_pb_utils_get_element_description(
             factory_name.to_glib_none().0,
         ))
-        .ok_or_else(|| glib::bool_error!("Failed to get element description"))
     }
 }
 
@@ -269,24 +266,22 @@ pub fn pb_utils_get_file_extension_from_caps(caps: &gst::Caps) -> Option<glib::G
 }
 
 #[doc(alias = "gst_pb_utils_get_sink_description")]
-pub fn pb_utils_get_sink_description(protocol: &str) -> Result<glib::GString, glib::BoolError> {
+pub fn pb_utils_get_sink_description(protocol: &str) -> glib::GString {
     assert_initialized_main_thread!();
     unsafe {
-        Option::<_>::from_glib_full(ffi::gst_pb_utils_get_sink_description(
+        from_glib_full(ffi::gst_pb_utils_get_sink_description(
             protocol.to_glib_none().0,
         ))
-        .ok_or_else(|| glib::bool_error!("Failed to get sink description"))
     }
 }
 
 #[doc(alias = "gst_pb_utils_get_source_description")]
-pub fn pb_utils_get_source_description(protocol: &str) -> Result<glib::GString, glib::BoolError> {
+pub fn pb_utils_get_source_description(protocol: &str) -> glib::GString {
     assert_initialized_main_thread!();
     unsafe {
-        Option::<_>::from_glib_full(ffi::gst_pb_utils_get_source_description(
+        from_glib_full(ffi::gst_pb_utils_get_source_description(
             protocol.to_glib_none().0,
         ))
-        .ok_or_else(|| glib::bool_error!("Failed to get source description"))
     }
 }
 
diff --git a/gstreamer-pbutils/src/auto/versions.txt b/gstreamer-pbutils/src/auto/versions.txt
index 4133cf20b..a18bf5ca8 100644
--- a/gstreamer-pbutils/src/auto/versions.txt
+++ b/gstreamer-pbutils/src/auto/versions.txt
@@ -1,3 +1,3 @@
-Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-pbutils/sys/Cargo.toml b/gstreamer-pbutils/sys/Cargo.toml
index 397c1e1f0..12fe8e21c 100644
--- a/gstreamer-pbutils/sys/Cargo.toml
+++ b/gstreamer-pbutils/sys/Cargo.toml
@@ -33,7 +33,7 @@ v1_16 = []
 v1_18 = ["v1_16"]
 v1_20 = ["v1_18"]
 v1_22 = ["v1_20"]
-dox = []
+dox = ["glib/dox", "gobject/dox", "gst/dox", "gst_audio/dox", "gst_video/dox"]
 
 [lib]
 name = "gstreamer_pbutils_sys"
diff --git a/gstreamer-pbutils/sys/build.rs b/gstreamer-pbutils/sys/build.rs
index c8ef202cf..5762ce067 100644
--- a/gstreamer-pbutils/sys/build.rs
+++ b/gstreamer-pbutils/sys/build.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #[cfg(not(feature = "dox"))]
diff --git a/gstreamer-pbutils/sys/src/auto/versions.txt b/gstreamer-pbutils/sys/src/auto/versions.txt
new file mode 100644
index 000000000..a18bf5ca8
--- /dev/null
+++ b/gstreamer-pbutils/sys/src/auto/versions.txt
@@ -0,0 +1,3 @@
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-pbutils/sys/src/lib.rs b/gstreamer-pbutils/sys/src/lib.rs
index b2be46445..a38f5ee3e 100644
--- a/gstreamer-pbutils/sys/src/lib.rs
+++ b/gstreamer-pbutils/sys/src/lib.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #![allow(non_camel_case_types, non_upper_case_globals, non_snake_case)]
diff --git a/gstreamer-pbutils/sys/tests/abi.rs b/gstreamer-pbutils/sys/tests/abi.rs
index 760709781..2da9d75d3 100644
--- a/gstreamer-pbutils/sys/tests/abi.rs
+++ b/gstreamer-pbutils/sys/tests/abi.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 use gstreamer_pbutils_sys::*;
diff --git a/gstreamer-pbutils/sys/tests/constant.c b/gstreamer-pbutils/sys/tests/constant.c
index 086698d57..7c5d2d7fa 100644
--- a/gstreamer-pbutils/sys/tests/constant.c
+++ b/gstreamer-pbutils/sys/tests/constant.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-pbutils/sys/tests/layout.c b/gstreamer-pbutils/sys/tests/layout.c
index 9520e48c3..bfdb99c27 100644
--- a/gstreamer-pbutils/sys/tests/layout.c
+++ b/gstreamer-pbutils/sys/tests/layout.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-play/src/auto/play_signal_adapter.rs b/gstreamer-play/src/auto/play_signal_adapter.rs
index d2c82da00..f61d25213 100644
--- a/gstreamer-play/src/auto/play_signal_adapter.rs
+++ b/gstreamer-play/src/auto/play_signal_adapter.rs
@@ -115,15 +115,15 @@ impl PlaySignalAdapter {
             F: Fn(&PlaySignalAdapter, &glib::Error, Option<&gst::Structure>) + Send + 'static,
         >(
             this: *mut ffi::GstPlaySignalAdapter,
-            object: *mut glib::ffi::GError,
-            p0: *mut gst::ffi::GstStructure,
+            error: *mut glib::ffi::GError,
+            details: *mut gst::ffi::GstStructure,
             f: glib::ffi::gpointer,
         ) {
             let f: &F = &*(f as *const F);
             f(
                 &from_glib_borrow(this),
-                &from_glib_borrow(object),
-                Option::<gst::Structure>::from_glib_borrow(p0)
+                &from_glib_borrow(error),
+                Option::<gst::Structure>::from_glib_borrow(details)
                     .as_ref()
                     .as_ref(),
             )
@@ -319,15 +319,15 @@ impl PlaySignalAdapter {
             F: Fn(&PlaySignalAdapter, &glib::Error, Option<&gst::Structure>) + Send + 'static,
         >(
             this: *mut ffi::GstPlaySignalAdapter,
-            object: *mut glib::ffi::GError,
-            p0: *mut gst::ffi::GstStructure,
+            error: *mut glib::ffi::GError,
+            details: *mut gst::ffi::GstStructure,
             f: glib::ffi::gpointer,
         ) {
             let f: &F = &*(f as *const F);
             f(
                 &from_glib_borrow(this),
-                &from_glib_borrow(object),
-                Option::<gst::Structure>::from_glib_borrow(p0)
+                &from_glib_borrow(error),
+                Option::<gst::Structure>::from_glib_borrow(details)
                     .as_ref()
                     .as_ref(),
             )
diff --git a/gstreamer-play/src/auto/versions.txt b/gstreamer-play/src/auto/versions.txt
index 4133cf20b..a18bf5ca8 100644
--- a/gstreamer-play/src/auto/versions.txt
+++ b/gstreamer-play/src/auto/versions.txt
@@ -1,3 +1,3 @@
-Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-play/sys/Cargo.toml b/gstreamer-play/sys/Cargo.toml
index cf3b11c95..7d1a3643f 100644
--- a/gstreamer-play/sys/Cargo.toml
+++ b/gstreamer-play/sys/Cargo.toml
@@ -26,7 +26,7 @@ tempfile = "3"
 
 [features]
 v1_22 = []
-dox = []
+dox = ["glib/dox", "gobject/dox", "gst/dox", "gst_video/dox"]
 
 [lib]
 name = "gstreamer_play_sys"
diff --git a/gstreamer-play/sys/build.rs b/gstreamer-play/sys/build.rs
index c8ef202cf..5762ce067 100644
--- a/gstreamer-play/sys/build.rs
+++ b/gstreamer-play/sys/build.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #[cfg(not(feature = "dox"))]
diff --git a/gstreamer-play/sys/src/auto/versions.txt b/gstreamer-play/sys/src/auto/versions.txt
new file mode 100644
index 000000000..a18bf5ca8
--- /dev/null
+++ b/gstreamer-play/sys/src/auto/versions.txt
@@ -0,0 +1,3 @@
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-play/sys/src/lib.rs b/gstreamer-play/sys/src/lib.rs
index ba25981e4..5557586f9 100644
--- a/gstreamer-play/sys/src/lib.rs
+++ b/gstreamer-play/sys/src/lib.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #![allow(non_camel_case_types, non_upper_case_globals, non_snake_case)]
diff --git a/gstreamer-play/sys/tests/abi.rs b/gstreamer-play/sys/tests/abi.rs
index 4256c38df..4ab8136c5 100644
--- a/gstreamer-play/sys/tests/abi.rs
+++ b/gstreamer-play/sys/tests/abi.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 use gstreamer_play_sys::*;
diff --git a/gstreamer-play/sys/tests/constant.c b/gstreamer-play/sys/tests/constant.c
index 32751fdda..0c8397192 100644
--- a/gstreamer-play/sys/tests/constant.c
+++ b/gstreamer-play/sys/tests/constant.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-play/sys/tests/layout.c b/gstreamer-play/sys/tests/layout.c
index 81ac7be19..317e98af8 100644
--- a/gstreamer-play/sys/tests/layout.c
+++ b/gstreamer-play/sys/tests/layout.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-player/src/auto/versions.txt b/gstreamer-player/src/auto/versions.txt
index 4133cf20b..a18bf5ca8 100644
--- a/gstreamer-player/src/auto/versions.txt
+++ b/gstreamer-player/src/auto/versions.txt
@@ -1,3 +1,3 @@
-Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-player/sys/Cargo.toml b/gstreamer-player/sys/Cargo.toml
index 0e0a506f4..ee8074a3e 100644
--- a/gstreamer-player/sys/Cargo.toml
+++ b/gstreamer-player/sys/Cargo.toml
@@ -29,7 +29,7 @@ v1_16 = []
 v1_18 = ["v1_16"]
 v1_20 = ["v1_18"]
 v1_22 = ["v1_20"]
-dox = []
+dox = ["glib/dox", "gobject/dox", "gst/dox", "gst_video/dox"]
 
 [lib]
 name = "gstreamer_player_sys"
diff --git a/gstreamer-player/sys/build.rs b/gstreamer-player/sys/build.rs
index c8ef202cf..5762ce067 100644
--- a/gstreamer-player/sys/build.rs
+++ b/gstreamer-player/sys/build.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #[cfg(not(feature = "dox"))]
diff --git a/gstreamer-player/sys/src/auto/versions.txt b/gstreamer-player/sys/src/auto/versions.txt
new file mode 100644
index 000000000..a18bf5ca8
--- /dev/null
+++ b/gstreamer-player/sys/src/auto/versions.txt
@@ -0,0 +1,3 @@
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-player/sys/src/lib.rs b/gstreamer-player/sys/src/lib.rs
index 1e785d871..0548f50c8 100644
--- a/gstreamer-player/sys/src/lib.rs
+++ b/gstreamer-player/sys/src/lib.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #![allow(non_camel_case_types, non_upper_case_globals, non_snake_case)]
diff --git a/gstreamer-player/sys/tests/abi.rs b/gstreamer-player/sys/tests/abi.rs
index fc8e2908c..7e7bdafc7 100644
--- a/gstreamer-player/sys/tests/abi.rs
+++ b/gstreamer-player/sys/tests/abi.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 use gstreamer_player_sys::*;
diff --git a/gstreamer-player/sys/tests/constant.c b/gstreamer-player/sys/tests/constant.c
index f6b72f758..7ca048f1f 100644
--- a/gstreamer-player/sys/tests/constant.c
+++ b/gstreamer-player/sys/tests/constant.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-player/sys/tests/layout.c b/gstreamer-player/sys/tests/layout.c
index 4cdc86e26..4dd67f80f 100644
--- a/gstreamer-player/sys/tests/layout.c
+++ b/gstreamer-player/sys/tests/layout.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-rtp/src/auto/functions.rs b/gstreamer-rtp/src/auto/functions.rs
index fabeb9b19..c1bde0f31 100644
--- a/gstreamer-rtp/src/auto/functions.rs
+++ b/gstreamer-rtp/src/auto/functions.rs
@@ -9,7 +9,7 @@ use glib::translate::*;
 //#[cfg(any(feature = "v1_16", feature = "dox"))]
 //#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_16")))]
 //#[doc(alias = "gst_buffer_add_rtp_source_meta")]
-//pub fn buffer_add_rtp_source_meta(buffer: &gst::Buffer, ssrc: u32, csrc: u32, csrc_count: u32) -> /*Ignored*/Option<RTPSourceMeta> {
+//pub fn buffer_add_rtp_source_meta(buffer: &gst::Buffer, ssrc: u32, csrc: &[u32]) -> /*Ignored*/RTPSourceMeta {
 //    unsafe { TODO: call ffi:gst_buffer_add_rtp_source_meta() }
 //}
 
@@ -33,7 +33,7 @@ pub fn rtcp_sdes_name_to_type(name: &str) -> RTCPSDESType {
 }
 
 #[doc(alias = "gst_rtcp_sdes_type_to_name")]
-pub fn rtcp_sdes_type_to_name(type_: RTCPSDESType) -> Option<glib::GString> {
+pub fn rtcp_sdes_type_to_name(type_: RTCPSDESType) -> glib::GString {
     assert_initialized_main_thread!();
     unsafe { from_glib_none(ffi::gst_rtcp_sdes_type_to_name(type_.into_glib())) }
 }
diff --git a/gstreamer-rtp/src/auto/rtp_base_payload.rs b/gstreamer-rtp/src/auto/rtp_base_payload.rs
index 6577402b6..828f41777 100644
--- a/gstreamer-rtp/src/auto/rtp_base_payload.rs
+++ b/gstreamer-rtp/src/auto/rtp_base_payload.rs
@@ -39,12 +39,7 @@ pub trait RTPBasePayloadExt: 'static {
     #[cfg(any(feature = "v1_16", feature = "dox"))]
     #[cfg_attr(feature = "dox", doc(cfg(feature = "v1_16")))]
     #[doc(alias = "gst_rtp_base_payload_allocate_output_buffer")]
-    fn allocate_output_buffer(
-        &self,
-        payload_len: u32,
-        pad_len: u8,
-        csrc_count: u8,
-    ) -> Result<gst::Buffer, glib::BoolError>;
+    fn allocate_output_buffer(&self, payload_len: u32, pad_len: u8, csrc_count: u8) -> gst::Buffer;
 
     #[cfg(any(feature = "v1_16", feature = "dox"))]
     #[cfg_attr(feature = "dox", doc(cfg(feature = "v1_16")))]
@@ -289,20 +284,14 @@ pub trait RTPBasePayloadExt: 'static {
 impl<O: IsA<RTPBasePayload>> RTPBasePayloadExt for O {
     #[cfg(any(feature = "v1_16", feature = "dox"))]
     #[cfg_attr(feature = "dox", doc(cfg(feature = "v1_16")))]
-    fn allocate_output_buffer(
-        &self,
-        payload_len: u32,
-        pad_len: u8,
-        csrc_count: u8,
-    ) -> Result<gst::Buffer, glib::BoolError> {
+    fn allocate_output_buffer(&self, payload_len: u32, pad_len: u8, csrc_count: u8) -> gst::Buffer {
         unsafe {
-            Option::<_>::from_glib_full(ffi::gst_rtp_base_payload_allocate_output_buffer(
+            from_glib_full(ffi::gst_rtp_base_payload_allocate_output_buffer(
                 self.as_ref().to_glib_none().0,
                 payload_len,
                 pad_len,
                 csrc_count,
             ))
-            .ok_or_else(|| glib::bool_error!("Failed to allocate output buffer"))
         }
     }
 
diff --git a/gstreamer-rtp/src/auto/versions.txt b/gstreamer-rtp/src/auto/versions.txt
index 4133cf20b..a18bf5ca8 100644
--- a/gstreamer-rtp/src/auto/versions.txt
+++ b/gstreamer-rtp/src/auto/versions.txt
@@ -1,3 +1,3 @@
-Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-rtp/sys/Cargo.toml b/gstreamer-rtp/sys/Cargo.toml
index 10d6054e4..647ee32bc 100644
--- a/gstreamer-rtp/sys/Cargo.toml
+++ b/gstreamer-rtp/sys/Cargo.toml
@@ -25,7 +25,7 @@ v1_16 = []
 v1_18 = ["v1_16"]
 v1_20 = ["v1_18"]
 v1_22 = ["v1_20"]
-dox = []
+dox = ["glib/dox", "gst/dox", "gst_base/dox"]
 
 [lib]
 name = "gstreamer_rtp_sys"
diff --git a/gstreamer-rtp/sys/build.rs b/gstreamer-rtp/sys/build.rs
index c8ef202cf..5762ce067 100644
--- a/gstreamer-rtp/sys/build.rs
+++ b/gstreamer-rtp/sys/build.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #[cfg(not(feature = "dox"))]
diff --git a/gstreamer-rtp/sys/src/auto/versions.txt b/gstreamer-rtp/sys/src/auto/versions.txt
new file mode 100644
index 000000000..a18bf5ca8
--- /dev/null
+++ b/gstreamer-rtp/sys/src/auto/versions.txt
@@ -0,0 +1,3 @@
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-rtp/sys/src/lib.rs b/gstreamer-rtp/sys/src/lib.rs
index 77302388f..113f421df 100644
--- a/gstreamer-rtp/sys/src/lib.rs
+++ b/gstreamer-rtp/sys/src/lib.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #![allow(non_camel_case_types, non_upper_case_globals, non_snake_case)]
diff --git a/gstreamer-rtp/sys/tests/abi.rs b/gstreamer-rtp/sys/tests/abi.rs
index 66e78f703..9c05677ab 100644
--- a/gstreamer-rtp/sys/tests/abi.rs
+++ b/gstreamer-rtp/sys/tests/abi.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 use gstreamer_rtp_sys::*;
diff --git a/gstreamer-rtp/sys/tests/constant.c b/gstreamer-rtp/sys/tests/constant.c
index 33f7c854d..64ff38a0c 100644
--- a/gstreamer-rtp/sys/tests/constant.c
+++ b/gstreamer-rtp/sys/tests/constant.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-rtp/sys/tests/layout.c b/gstreamer-rtp/sys/tests/layout.c
index 7142bd539..b4b18c95e 100644
--- a/gstreamer-rtp/sys/tests/layout.c
+++ b/gstreamer-rtp/sys/tests/layout.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-rtsp-server/src/auto/rtsp_auth.rs b/gstreamer-rtsp-server/src/auto/rtsp_auth.rs
index bda761119..7b7fceeb3 100644
--- a/gstreamer-rtsp-server/src/auto/rtsp_auth.rs
+++ b/gstreamer-rtsp-server/src/auto/rtsp_auth.rs
@@ -109,7 +109,7 @@ pub trait RTSPAuthExt: 'static {
     #[cfg(any(feature = "v1_16", feature = "dox"))]
     #[cfg_attr(feature = "dox", doc(cfg(feature = "v1_16")))]
     #[doc(alias = "gst_rtsp_auth_set_realm")]
-    fn set_realm(&self, realm: &str);
+    fn set_realm(&self, realm: Option<&str>);
 
     #[doc(alias = "gst_rtsp_auth_set_supported_methods")]
     fn set_supported_methods(&self, methods: gst_rtsp::RTSPAuthMethod);
@@ -229,7 +229,7 @@ impl<O: IsA<RTSPAuth>> RTSPAuthExt for O {
 
     #[cfg(any(feature = "v1_16", feature = "dox"))]
     #[cfg_attr(feature = "dox", doc(cfg(feature = "v1_16")))]
-    fn set_realm(&self, realm: &str) {
+    fn set_realm(&self, realm: Option<&str>) {
         unsafe {
             ffi::gst_rtsp_auth_set_realm(self.as_ref().to_glib_none().0, realm.to_glib_none().0);
         }
diff --git a/gstreamer-rtsp-server/src/auto/rtsp_media.rs b/gstreamer-rtsp-server/src/auto/rtsp_media.rs
index cc89b341f..bbd520e5d 100644
--- a/gstreamer-rtsp-server/src/auto/rtsp_media.rs
+++ b/gstreamer-rtsp-server/src/auto/rtsp_media.rs
@@ -58,7 +58,7 @@ pub trait RTSPMediaExt: 'static {
         &self,
         payloader: &impl IsA<gst::Element>,
         pad: &impl IsA<gst::Pad>,
-    ) -> Option<RTSPStream>;
+    ) -> RTSPStream;
 
     #[doc(alias = "gst_rtsp_media_find_stream")]
     fn find_stream(&self, control: &str) -> Option<RTSPStream>;
@@ -93,7 +93,7 @@ pub trait RTSPMediaExt: 'static {
 
     #[doc(alias = "gst_rtsp_media_get_element")]
     #[doc(alias = "get_element")]
-    fn element(&self) -> Option<gst::Element>;
+    fn element(&self) -> gst::Element;
 
     #[doc(alias = "gst_rtsp_media_get_latency")]
     #[doc(alias = "get_latency")]
@@ -480,7 +480,7 @@ impl<O: IsA<RTSPMedia>> RTSPMediaExt for O {
         &self,
         payloader: &impl IsA<gst::Element>,
         pad: &impl IsA<gst::Pad>,
-    ) -> Option<RTSPStream> {
+    ) -> RTSPStream {
         unsafe {
             from_glib_none(ffi::gst_rtsp_media_create_stream(
                 self.as_ref().to_glib_none().0,
@@ -543,7 +543,7 @@ impl<O: IsA<RTSPMedia>> RTSPMediaExt for O {
         unsafe { ffi::gst_rtsp_media_get_dscp_qos(self.as_ref().to_glib_none().0) }
     }
 
-    fn element(&self) -> Option<gst::Element> {
+    fn element(&self) -> gst::Element {
         unsafe {
             from_glib_full(ffi::gst_rtsp_media_get_element(
                 self.as_ref().to_glib_none().0,
diff --git a/gstreamer-rtsp-server/src/auto/rtsp_media_factory_uri.rs b/gstreamer-rtsp-server/src/auto/rtsp_media_factory_uri.rs
index 5be326295..14fe82e60 100644
--- a/gstreamer-rtsp-server/src/auto/rtsp_media_factory_uri.rs
+++ b/gstreamer-rtsp-server/src/auto/rtsp_media_factory_uri.rs
@@ -45,7 +45,7 @@ unsafe impl Sync for RTSPMediaFactoryURI {}
 pub trait RTSPMediaFactoryURIExt: 'static {
     #[doc(alias = "gst_rtsp_media_factory_uri_get_uri")]
     #[doc(alias = "get_uri")]
-    fn uri(&self) -> Option<glib::GString>;
+    fn uri(&self) -> glib::GString;
 
     #[doc(alias = "gst_rtsp_media_factory_uri_set_uri")]
     fn set_uri(&self, uri: &str);
@@ -67,7 +67,7 @@ pub trait RTSPMediaFactoryURIExt: 'static {
 }
 
 impl<O: IsA<RTSPMediaFactoryURI>> RTSPMediaFactoryURIExt for O {
-    fn uri(&self) -> Option<glib::GString> {
+    fn uri(&self) -> glib::GString {
         unsafe {
             from_glib_full(ffi::gst_rtsp_media_factory_uri_get_uri(
                 self.as_ref().to_glib_none().0,
diff --git a/gstreamer-rtsp-server/src/auto/rtsp_onvif_media_factory.rs b/gstreamer-rtsp-server/src/auto/rtsp_onvif_media_factory.rs
index f5e2c19c1..a48e99675 100644
--- a/gstreamer-rtsp-server/src/auto/rtsp_onvif_media_factory.rs
+++ b/gstreamer-rtsp-server/src/auto/rtsp_onvif_media_factory.rs
@@ -59,7 +59,7 @@ pub trait RTSPOnvifMediaFactoryExt: 'static {
     fn set_backchannel_bandwidth(&self, bandwidth: u32);
 
     #[doc(alias = "gst_rtsp_onvif_media_factory_set_backchannel_launch")]
-    fn set_backchannel_launch(&self, launch: &str);
+    fn set_backchannel_launch(&self, launch: Option<&str>);
 
     #[cfg(any(feature = "v1_18", feature = "dox"))]
     #[cfg_attr(feature = "dox", doc(cfg(feature = "v1_18")))]
@@ -111,7 +111,7 @@ impl<O: IsA<RTSPOnvifMediaFactory>> RTSPOnvifMediaFactoryExt for O {
         }
     }
 
-    fn set_backchannel_launch(&self, launch: &str) {
+    fn set_backchannel_launch(&self, launch: Option<&str>) {
         unsafe {
             ffi::gst_rtsp_onvif_media_factory_set_backchannel_launch(
                 self.as_ref().to_glib_none().0,
diff --git a/gstreamer-rtsp-server/src/auto/rtsp_server.rs b/gstreamer-rtsp-server/src/auto/rtsp_server.rs
index 5ff4813cb..4e5d718d6 100644
--- a/gstreamer-rtsp-server/src/auto/rtsp_server.rs
+++ b/gstreamer-rtsp-server/src/auto/rtsp_server.rs
@@ -114,7 +114,7 @@ pub trait RTSPServerExt: 'static {
 
     #[doc(alias = "gst_rtsp_server_get_service")]
     #[doc(alias = "get_service")]
-    fn service(&self) -> Option<glib::GString>;
+    fn service(&self) -> glib::GString;
 
     #[doc(alias = "gst_rtsp_server_get_session_pool")]
     #[doc(alias = "get_session_pool")]
@@ -326,7 +326,7 @@ impl<O: IsA<RTSPServer>> RTSPServerExt for O {
         }
     }
 
-    fn service(&self) -> Option<glib::GString> {
+    fn service(&self) -> glib::GString {
         unsafe {
             from_glib_full(ffi::gst_rtsp_server_get_service(
                 self.as_ref().to_glib_none().0,
diff --git a/gstreamer-rtsp-server/src/auto/rtsp_session.rs b/gstreamer-rtsp-server/src/auto/rtsp_session.rs
index 1f5bcc029..36f1156db 100644
--- a/gstreamer-rtsp-server/src/auto/rtsp_session.rs
+++ b/gstreamer-rtsp-server/src/auto/rtsp_session.rs
@@ -67,11 +67,7 @@ pub trait RTSPSessionExt: 'static {
     fn is_expired_usec(&self, now: i64) -> bool;
 
     #[doc(alias = "gst_rtsp_session_manage_media")]
-    fn manage_media(
-        &self,
-        path: &str,
-        media: &impl IsA<RTSPMedia>,
-    ) -> Result<RTSPSessionMedia, glib::BoolError>;
+    fn manage_media(&self, path: &str, media: &impl IsA<RTSPMedia>) -> RTSPSessionMedia;
 
     //#[doc(alias = "gst_rtsp_session_next_timeout")]
     //fn next_timeout(&self, now: /*Ignored*/&mut glib::TimeVal) -> i32;
@@ -204,18 +200,13 @@ impl<O: IsA<RTSPSession>> RTSPSessionExt for O {
         }
     }
 
-    fn manage_media(
-        &self,
-        path: &str,
-        media: &impl IsA<RTSPMedia>,
-    ) -> Result<RTSPSessionMedia, glib::BoolError> {
+    fn manage_media(&self, path: &str, media: &impl IsA<RTSPMedia>) -> RTSPSessionMedia {
         unsafe {
-            Option::<_>::from_glib_none(ffi::gst_rtsp_session_manage_media(
+            from_glib_none(ffi::gst_rtsp_session_manage_media(
                 self.as_ref().to_glib_none().0,
                 path.to_glib_none().0,
                 media.as_ref().to_glib_full(),
             ))
-            .ok_or_else(|| glib::bool_error!("Failed to manage media"))
         }
     }
 
diff --git a/gstreamer-rtsp-server/src/auto/rtsp_session_media.rs b/gstreamer-rtsp-server/src/auto/rtsp_session_media.rs
index 6055af50e..e7404a859 100644
--- a/gstreamer-rtsp-server/src/auto/rtsp_session_media.rs
+++ b/gstreamer-rtsp-server/src/auto/rtsp_session_media.rs
@@ -74,7 +74,7 @@ pub trait RTSPSessionMediaExt: 'static {
     fn set_state(&self, state: gst::State) -> Result<(), glib::error::BoolError>;
 
     //#[doc(alias = "gst_rtsp_session_media_set_transport")]
-    //fn set_transport(&self, stream: &impl IsA<RTSPStream>, tr: /*Ignored*/&mut gst_rtsp::RTSPTransport) -> Option<RTSPStreamTransport>;
+    //fn set_transport(&self, stream: &impl IsA<RTSPStream>, tr: /*Ignored*/&mut gst_rtsp::RTSPTransport) -> RTSPStreamTransport;
 }
 
 impl<O: IsA<RTSPSessionMedia>> RTSPSessionMediaExt for O {
@@ -159,7 +159,7 @@ impl<O: IsA<RTSPSessionMedia>> RTSPSessionMediaExt for O {
         }
     }
 
-    //fn set_transport(&self, stream: &impl IsA<RTSPStream>, tr: /*Ignored*/&mut gst_rtsp::RTSPTransport) -> Option<RTSPStreamTransport> {
+    //fn set_transport(&self, stream: &impl IsA<RTSPStream>, tr: /*Ignored*/&mut gst_rtsp::RTSPTransport) -> RTSPStreamTransport {
     //    unsafe { TODO: call ffi:gst_rtsp_session_media_set_transport() }
     //}
 }
diff --git a/gstreamer-rtsp-server/src/auto/rtsp_stream.rs b/gstreamer-rtsp-server/src/auto/rtsp_stream.rs
index ff9584887..5db8a976c 100644
--- a/gstreamer-rtsp-server/src/auto/rtsp_stream.rs
+++ b/gstreamer-rtsp-server/src/auto/rtsp_stream.rs
@@ -123,7 +123,7 @@ pub trait RTSPStreamExt: 'static {
     #[cfg_attr(feature = "dox", doc(cfg(feature = "v1_16")))]
     #[doc(alias = "gst_rtsp_stream_get_multicast_client_addresses")]
     #[doc(alias = "get_multicast_client_addresses")]
-    fn multicast_client_addresses(&self) -> Option<glib::GString>;
+    fn multicast_client_addresses(&self) -> glib::GString;
 
     #[doc(alias = "gst_rtsp_stream_get_multicast_iface")]
     #[doc(alias = "get_multicast_iface")]
@@ -561,7 +561,7 @@ impl<O: IsA<RTSPStream>> RTSPStreamExt for O {
 
     #[cfg(any(feature = "v1_16", feature = "dox"))]
     #[cfg_attr(feature = "dox", doc(cfg(feature = "v1_16")))]
-    fn multicast_client_addresses(&self) -> Option<glib::GString> {
+    fn multicast_client_addresses(&self) -> glib::GString {
         unsafe {
             from_glib_full(ffi::gst_rtsp_stream_get_multicast_client_addresses(
                 self.as_ref().to_glib_none().0,
diff --git a/gstreamer-rtsp-server/src/auto/versions.txt b/gstreamer-rtsp-server/src/auto/versions.txt
index 4133cf20b..a18bf5ca8 100644
--- a/gstreamer-rtsp-server/src/auto/versions.txt
+++ b/gstreamer-rtsp-server/src/auto/versions.txt
@@ -1,3 +1,3 @@
-Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-rtsp-server/sys/Cargo.toml b/gstreamer-rtsp-server/sys/Cargo.toml
index 2a06998d4..7c6a9f872 100644
--- a/gstreamer-rtsp-server/sys/Cargo.toml
+++ b/gstreamer-rtsp-server/sys/Cargo.toml
@@ -41,7 +41,7 @@ v1_16 = []
 v1_18 = ["v1_16"]
 v1_20 = ["v1_18"]
 v1_22 = ["v1_20"]
-dox = []
+dox = ["glib/dox", "gobject/dox", "gio/dox", "gst/dox", "gst_net/dox", "gst_sdp/dox", "gst_rtsp/dox"]
 
 [lib]
 name = "gstreamer_rtsp_server_sys"
diff --git a/gstreamer-rtsp-server/sys/build.rs b/gstreamer-rtsp-server/sys/build.rs
index c8ef202cf..5762ce067 100644
--- a/gstreamer-rtsp-server/sys/build.rs
+++ b/gstreamer-rtsp-server/sys/build.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #[cfg(not(feature = "dox"))]
diff --git a/gstreamer-rtsp-server/sys/src/auto/versions.txt b/gstreamer-rtsp-server/sys/src/auto/versions.txt
new file mode 100644
index 000000000..a18bf5ca8
--- /dev/null
+++ b/gstreamer-rtsp-server/sys/src/auto/versions.txt
@@ -0,0 +1,3 @@
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-rtsp-server/sys/src/lib.rs b/gstreamer-rtsp-server/sys/src/lib.rs
index 3aa74ff70..76d005f62 100644
--- a/gstreamer-rtsp-server/sys/src/lib.rs
+++ b/gstreamer-rtsp-server/sys/src/lib.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #![allow(non_camel_case_types, non_upper_case_globals, non_snake_case)]
diff --git a/gstreamer-rtsp-server/sys/tests/abi.rs b/gstreamer-rtsp-server/sys/tests/abi.rs
index 30acb2738..b12aacf67 100644
--- a/gstreamer-rtsp-server/sys/tests/abi.rs
+++ b/gstreamer-rtsp-server/sys/tests/abi.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 use gstreamer_rtsp_server_sys::*;
diff --git a/gstreamer-rtsp-server/sys/tests/constant.c b/gstreamer-rtsp-server/sys/tests/constant.c
index 990c6c4ce..bc733e7af 100644
--- a/gstreamer-rtsp-server/sys/tests/constant.c
+++ b/gstreamer-rtsp-server/sys/tests/constant.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-rtsp-server/sys/tests/layout.c b/gstreamer-rtsp-server/sys/tests/layout.c
index 924b56514..41b355707 100644
--- a/gstreamer-rtsp-server/sys/tests/layout.c
+++ b/gstreamer-rtsp-server/sys/tests/layout.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-rtsp/src/auto/rtsp_url.rs b/gstreamer-rtsp/src/auto/rtsp_url.rs
index f613c9f26..ed2c0ac9e 100644
--- a/gstreamer-rtsp/src/auto/rtsp_url.rs
+++ b/gstreamer-rtsp/src/auto/rtsp_url.rs
@@ -30,7 +30,7 @@ impl RTSPUrl {
 
     #[doc(alias = "gst_rtsp_url_get_request_uri")]
     #[doc(alias = "get_request_uri")]
-    pub fn request_uri(&self) -> Option<glib::GString> {
+    pub fn request_uri(&self) -> glib::GString {
         unsafe { from_glib_full(ffi::gst_rtsp_url_get_request_uri(self.to_glib_none().0)) }
     }
 
@@ -38,7 +38,7 @@ impl RTSPUrl {
     #[cfg_attr(feature = "dox", doc(cfg(feature = "v1_18")))]
     #[doc(alias = "gst_rtsp_url_get_request_uri_with_control")]
     #[doc(alias = "get_request_uri_with_control")]
-    pub fn request_uri_with_control(&self, control_path: &str) -> Option<glib::GString> {
+    pub fn request_uri_with_control(&self, control_path: &str) -> glib::GString {
         unsafe {
             from_glib_full(ffi::gst_rtsp_url_get_request_uri_with_control(
                 self.to_glib_none().0,
@@ -53,7 +53,7 @@ impl RTSPUrl {
     }
 
     #[doc(alias = "gst_rtsp_url_parse")]
-    pub fn parse(urlstr: &str) -> (RTSPResult, RTSPUrl) {
+    pub fn parse(urlstr: &str) -> (RTSPResult, Option<RTSPUrl>) {
         assert_initialized_main_thread!();
         unsafe {
             let mut url = ptr::null_mut();
diff --git a/gstreamer-rtsp/src/auto/versions.txt b/gstreamer-rtsp/src/auto/versions.txt
index 4133cf20b..a18bf5ca8 100644
--- a/gstreamer-rtsp/src/auto/versions.txt
+++ b/gstreamer-rtsp/src/auto/versions.txt
@@ -1,3 +1,3 @@
-Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-rtsp/sys/Cargo.toml b/gstreamer-rtsp/sys/Cargo.toml
index 94cbd02c9..d2819c400 100644
--- a/gstreamer-rtsp/sys/Cargo.toml
+++ b/gstreamer-rtsp/sys/Cargo.toml
@@ -33,7 +33,7 @@ v1_16 = []
 v1_18 = ["v1_16"]
 v1_20 = ["v1_18"]
 v1_22 = ["v1_20"]
-dox = []
+dox = ["glib/dox", "gobject/dox", "gio/dox", "gst/dox", "gst_sdp/dox"]
 
 [lib]
 name = "gstreamer_rtsp_sys"
diff --git a/gstreamer-rtsp/sys/build.rs b/gstreamer-rtsp/sys/build.rs
index c8ef202cf..5762ce067 100644
--- a/gstreamer-rtsp/sys/build.rs
+++ b/gstreamer-rtsp/sys/build.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #[cfg(not(feature = "dox"))]
diff --git a/gstreamer-rtsp/sys/src/auto/versions.txt b/gstreamer-rtsp/sys/src/auto/versions.txt
new file mode 100644
index 000000000..a18bf5ca8
--- /dev/null
+++ b/gstreamer-rtsp/sys/src/auto/versions.txt
@@ -0,0 +1,3 @@
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-rtsp/sys/src/lib.rs b/gstreamer-rtsp/sys/src/lib.rs
index 81dca8efe..4d312384a 100644
--- a/gstreamer-rtsp/sys/src/lib.rs
+++ b/gstreamer-rtsp/sys/src/lib.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #![allow(non_camel_case_types, non_upper_case_globals, non_snake_case)]
@@ -1069,19 +1069,6 @@ extern "C" {
     #[cfg(any(feature = "v1_16", feature = "dox"))]
     #[cfg_attr(feature = "dox", doc(cfg(feature = "v1_16")))]
     pub fn gst_rtsp_message_has_body_buffer(msg: *const GstRTSPMessage) -> gboolean;
-    pub fn gst_rtsp_message_init(msg: *mut GstRTSPMessage) -> GstRTSPResult;
-    pub fn gst_rtsp_message_init_data(msg: *mut GstRTSPMessage, channel: u8) -> GstRTSPResult;
-    pub fn gst_rtsp_message_init_request(
-        msg: *mut GstRTSPMessage,
-        method: GstRTSPMethod,
-        uri: *const c_char,
-    ) -> GstRTSPResult;
-    pub fn gst_rtsp_message_init_response(
-        msg: *mut GstRTSPMessage,
-        code: GstRTSPStatusCode,
-        reason: *const c_char,
-        request: *const GstRTSPMessage,
-    ) -> GstRTSPResult;
     pub fn gst_rtsp_message_parse_auth_credentials(
         msg: *mut GstRTSPMessage,
         field: GstRTSPHeaderField,
@@ -1183,7 +1170,6 @@ extern "C" {
         transport: *mut GstRTSPTransport,
         media_type: *mut *const c_char,
     ) -> GstRTSPResult;
-    pub fn gst_rtsp_transport_init(transport: *mut GstRTSPTransport) -> GstRTSPResult;
     pub fn gst_rtsp_transport_get_manager(
         trans: GstRTSPTransMode,
         manager: *mut *const c_char,
@@ -1193,6 +1179,7 @@ extern "C" {
         trans: GstRTSPTransMode,
         mime: *mut *const c_char,
     ) -> GstRTSPResult;
+    pub fn gst_rtsp_transport_init(transport: *mut GstRTSPTransport) -> GstRTSPResult;
     pub fn gst_rtsp_transport_new(transport: *mut *mut GstRTSPTransport) -> GstRTSPResult;
     pub fn gst_rtsp_transport_parse(
         str: *const c_char,
@@ -1348,6 +1335,19 @@ extern "C" {
     ) -> *mut c_char;
     pub fn gst_rtsp_header_allow_multiple(field: GstRTSPHeaderField) -> gboolean;
     pub fn gst_rtsp_header_as_text(field: GstRTSPHeaderField) -> *const c_char;
+    pub fn gst_rtsp_message_init(msg: *mut GstRTSPMessage) -> GstRTSPResult;
+    pub fn gst_rtsp_message_init_data(msg: *mut GstRTSPMessage, channel: u8) -> GstRTSPResult;
+    pub fn gst_rtsp_message_init_request(
+        msg: *mut GstRTSPMessage,
+        method: GstRTSPMethod,
+        uri: *const c_char,
+    ) -> GstRTSPResult;
+    pub fn gst_rtsp_message_init_response(
+        msg: *mut GstRTSPMessage,
+        code: GstRTSPStatusCode,
+        reason: *const c_char,
+        request: *const GstRTSPMessage,
+    ) -> GstRTSPResult;
     pub fn gst_rtsp_message_new(msg: *mut *mut GstRTSPMessage) -> GstRTSPResult;
     pub fn gst_rtsp_message_new_data(msg: *mut *mut GstRTSPMessage, channel: u8) -> GstRTSPResult;
     pub fn gst_rtsp_message_new_request(
diff --git a/gstreamer-rtsp/sys/tests/abi.rs b/gstreamer-rtsp/sys/tests/abi.rs
index 75ed52fe8..0458aa1c7 100644
--- a/gstreamer-rtsp/sys/tests/abi.rs
+++ b/gstreamer-rtsp/sys/tests/abi.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 use gstreamer_rtsp_sys::*;
diff --git a/gstreamer-rtsp/sys/tests/constant.c b/gstreamer-rtsp/sys/tests/constant.c
index 820247a68..2639b6b7d 100644
--- a/gstreamer-rtsp/sys/tests/constant.c
+++ b/gstreamer-rtsp/sys/tests/constant.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-rtsp/sys/tests/layout.c b/gstreamer-rtsp/sys/tests/layout.c
index 042f68f10..b73ebf5e8 100644
--- a/gstreamer-rtsp/sys/tests/layout.c
+++ b/gstreamer-rtsp/sys/tests/layout.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-sdp/src/auto/versions.txt b/gstreamer-sdp/src/auto/versions.txt
index 4133cf20b..a18bf5ca8 100644
--- a/gstreamer-sdp/src/auto/versions.txt
+++ b/gstreamer-sdp/src/auto/versions.txt
@@ -1,3 +1,3 @@
-Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-sdp/sys/Cargo.toml b/gstreamer-sdp/sys/Cargo.toml
index dd7f87f9d..51de3fb92 100644
--- a/gstreamer-sdp/sys/Cargo.toml
+++ b/gstreamer-sdp/sys/Cargo.toml
@@ -21,7 +21,7 @@ v1_16 = []
 v1_18 = ["v1_16"]
 v1_20 = ["v1_18"]
 v1_22 = ["v1_20"]
-dox = []
+dox = ["glib/dox", "gst/dox"]
 
 [lib]
 name = "gstreamer_sdp_sys"
diff --git a/gstreamer-sdp/sys/build.rs b/gstreamer-sdp/sys/build.rs
index c8ef202cf..5762ce067 100644
--- a/gstreamer-sdp/sys/build.rs
+++ b/gstreamer-sdp/sys/build.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #[cfg(not(feature = "dox"))]
diff --git a/gstreamer-sdp/sys/src/auto/versions.txt b/gstreamer-sdp/sys/src/auto/versions.txt
new file mode 100644
index 000000000..a18bf5ca8
--- /dev/null
+++ b/gstreamer-sdp/sys/src/auto/versions.txt
@@ -0,0 +1,3 @@
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-sdp/sys/src/lib.rs b/gstreamer-sdp/sys/src/lib.rs
index 20bd968a1..595926233 100644
--- a/gstreamer-sdp/sys/src/lib.rs
+++ b/gstreamer-sdp/sys/src/lib.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #![allow(non_camel_case_types, non_upper_case_globals, non_snake_case)]
@@ -831,7 +831,6 @@ extern "C" {
     pub fn gst_sdp_media_get_num_ports(media: *const GstSDPMedia) -> c_uint;
     pub fn gst_sdp_media_get_port(media: *const GstSDPMedia) -> c_uint;
     pub fn gst_sdp_media_get_proto(media: *const GstSDPMedia) -> *const c_char;
-    pub fn gst_sdp_media_init(media: *mut GstSDPMedia) -> GstSDPResult;
     pub fn gst_sdp_media_insert_attribute(
         media: *mut GstSDPMedia,
         idx: c_int,
@@ -897,6 +896,7 @@ extern "C" {
     ) -> GstSDPResult;
     pub fn gst_sdp_media_set_proto(media: *mut GstSDPMedia, proto: *const c_char) -> GstSDPResult;
     pub fn gst_sdp_media_uninit(media: *mut GstSDPMedia) -> GstSDPResult;
+    pub fn gst_sdp_media_init(media: *mut GstSDPMedia) -> GstSDPResult;
     pub fn gst_sdp_media_new(media: *mut *mut GstSDPMedia) -> GstSDPResult;
     pub fn gst_sdp_media_set_media_from_caps(
         caps: *const gst::GstCaps,
@@ -979,7 +979,6 @@ extern "C" {
     pub fn gst_sdp_message_get_uri(msg: *const GstSDPMessage) -> *const c_char;
     pub fn gst_sdp_message_get_version(msg: *const GstSDPMessage) -> *const c_char;
     pub fn gst_sdp_message_get_zone(msg: *const GstSDPMessage, idx: c_uint) -> *const GstSDPZone;
-    pub fn gst_sdp_message_init(msg: *mut GstSDPMessage) -> GstSDPResult;
     pub fn gst_sdp_message_insert_attribute(
         msg: *mut GstSDPMessage,
         idx: c_int,
@@ -1091,6 +1090,7 @@ extern "C" {
     pub fn gst_sdp_message_uninit(msg: *mut GstSDPMessage) -> GstSDPResult;
     pub fn gst_sdp_message_zones_len(msg: *const GstSDPMessage) -> c_uint;
     pub fn gst_sdp_message_as_uri(scheme: *const c_char, msg: *const GstSDPMessage) -> *mut c_char;
+    pub fn gst_sdp_message_init(msg: *mut GstSDPMessage) -> GstSDPResult;
     pub fn gst_sdp_message_new(msg: *mut *mut GstSDPMessage) -> GstSDPResult;
     #[cfg(any(feature = "v1_16", feature = "dox"))]
     #[cfg_attr(feature = "dox", doc(cfg(feature = "v1_16")))]
diff --git a/gstreamer-sdp/sys/tests/abi.rs b/gstreamer-sdp/sys/tests/abi.rs
index 7d06a3a48..46a35adbd 100644
--- a/gstreamer-sdp/sys/tests/abi.rs
+++ b/gstreamer-sdp/sys/tests/abi.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 use gstreamer_sdp_sys::*;
diff --git a/gstreamer-sdp/sys/tests/constant.c b/gstreamer-sdp/sys/tests/constant.c
index 27e05c729..087cbe1c0 100644
--- a/gstreamer-sdp/sys/tests/constant.c
+++ b/gstreamer-sdp/sys/tests/constant.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-sdp/sys/tests/layout.c b/gstreamer-sdp/sys/tests/layout.c
index b59a487e0..1907d368b 100644
--- a/gstreamer-sdp/sys/tests/layout.c
+++ b/gstreamer-sdp/sys/tests/layout.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-tag/sys/Cargo.toml b/gstreamer-tag/sys/Cargo.toml
index 1eef64d34..1af967084 100644
--- a/gstreamer-tag/sys/Cargo.toml
+++ b/gstreamer-tag/sys/Cargo.toml
@@ -25,7 +25,7 @@ v1_16 = []
 v1_18 = ["v1_16"]
 v1_20 = ["v1_18"]
 v1_22 = ["v1_20"]
-dox = []
+dox = ["glib/dox", "gobject/dox", "gst/dox"]
 
 [lib]
 name = "gstreamer_tag_sys"
diff --git a/gstreamer-tag/sys/build.rs b/gstreamer-tag/sys/build.rs
index c8ef202cf..5762ce067 100644
--- a/gstreamer-tag/sys/build.rs
+++ b/gstreamer-tag/sys/build.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #[cfg(not(feature = "dox"))]
diff --git a/gstreamer-tag/sys/src/auto/versions.txt b/gstreamer-tag/sys/src/auto/versions.txt
new file mode 100644
index 000000000..a18bf5ca8
--- /dev/null
+++ b/gstreamer-tag/sys/src/auto/versions.txt
@@ -0,0 +1,3 @@
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-tag/sys/src/lib.rs b/gstreamer-tag/sys/src/lib.rs
index d64f52e6e..4635bb1e4 100644
--- a/gstreamer-tag/sys/src/lib.rs
+++ b/gstreamer-tag/sys/src/lib.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #![allow(non_camel_case_types, non_upper_case_globals, non_snake_case)]
diff --git a/gstreamer-tag/sys/tests/abi.rs b/gstreamer-tag/sys/tests/abi.rs
index 6d6f5efda..57b12c70a 100644
--- a/gstreamer-tag/sys/tests/abi.rs
+++ b/gstreamer-tag/sys/tests/abi.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 use gstreamer_tag_sys::*;
diff --git a/gstreamer-tag/sys/tests/constant.c b/gstreamer-tag/sys/tests/constant.c
index d6c795c95..998cf32a8 100644
--- a/gstreamer-tag/sys/tests/constant.c
+++ b/gstreamer-tag/sys/tests/constant.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-tag/sys/tests/layout.c b/gstreamer-tag/sys/tests/layout.c
index 35cd26d7b..57224d68e 100644
--- a/gstreamer-tag/sys/tests/layout.c
+++ b/gstreamer-tag/sys/tests/layout.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-validate/src/auto/enums.rs b/gstreamer-validate/src/auto/enums.rs
index 628bdc4ef..8a947af17 100644
--- a/gstreamer-validate/src/auto/enums.rs
+++ b/gstreamer-validate/src/auto/enums.rs
@@ -8,6 +8,8 @@ use glib::value::FromValue;
 use glib::value::ToValue;
 use glib::StaticType;
 use glib::Type;
+use std::ffi::CStr;
+use std::fmt;
 
 #[derive(Debug, Eq, PartialEq, Ord, PartialOrd, Hash, Clone, Copy)]
 #[non_exhaustive]
@@ -42,11 +44,23 @@ impl ReportLevel {
         }
     }
 
-    #[doc(alias = "gst_validate_report_level_get_name")]
-    #[doc(alias = "get_name")]
-    pub fn name(self) -> Option<glib::GString> {
-        assert_initialized_main_thread!();
-        unsafe { from_glib_none(ffi::gst_validate_report_level_get_name(self.into_glib())) }
+    pub fn name<'a>(self) -> &'a str {
+        unsafe {
+            CStr::from_ptr(
+                ffi::gst_validate_report_level_get_name(self.into_glib())
+                    .as_ref()
+                    .expect("gst_validate_report_level_get_name returned NULL"),
+            )
+            .to_str()
+            .expect("gst_validate_report_level_get_name returned an invalid string")
+        }
+    }
+}
+
+impl fmt::Display for ReportLevel {
+    #[inline]
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        f.write_str(&self.name())
     }
 }
 
diff --git a/gstreamer-validate/src/auto/monitor.rs b/gstreamer-validate/src/auto/monitor.rs
index ce0299ca8..aeea7c9e2 100644
--- a/gstreamer-validate/src/auto/monitor.rs
+++ b/gstreamer-validate/src/auto/monitor.rs
@@ -32,7 +32,7 @@ impl Monitor {
         target: &impl IsA<gst::Object>,
         runner: &impl IsA<Runner>,
         parent: Option<&impl IsA<Monitor>>,
-    ) -> Option<Monitor> {
+    ) -> Monitor {
         skip_assert_initialized!();
         unsafe {
             from_glib_full(ffi::gst_validate_monitor_factory_create(
diff --git a/gstreamer-validate/src/auto/report.rs b/gstreamer-validate/src/auto/report.rs
index d1a8ed402..5856d91a4 100644
--- a/gstreamer-validate/src/auto/report.rs
+++ b/gstreamer-validate/src/auto/report.rs
@@ -68,7 +68,7 @@ impl Report {
 
     #[doc(alias = "gst_validate_report_get_issue")]
     #[doc(alias = "get_issue")]
-    pub fn issue(&self) -> Option<Issue> {
+    pub fn issue(&self) -> Issue {
         unsafe { from_glib_full(ffi::gst_validate_report_get_issue(self.to_glib_none().0)) }
     }
 
@@ -86,19 +86,19 @@ impl Report {
 
     #[doc(alias = "gst_validate_report_get_message")]
     #[doc(alias = "get_message")]
-    pub fn message(&self) -> Option<glib::GString> {
+    pub fn message(&self) -> glib::GString {
         unsafe { from_glib_full(ffi::gst_validate_report_get_message(self.to_glib_none().0)) }
     }
 
     #[doc(alias = "gst_validate_report_get_reporter")]
     #[doc(alias = "get_reporter")]
-    pub fn reporter(&self) -> Option<Reporter> {
+    pub fn reporter(&self) -> Reporter {
         unsafe { from_glib_full(ffi::gst_validate_report_get_reporter(self.to_glib_none().0)) }
     }
 
     #[doc(alias = "gst_validate_report_get_reporter_name")]
     #[doc(alias = "get_reporter_name")]
-    pub fn reporter_name(&self) -> Option<glib::GString> {
+    pub fn reporter_name(&self) -> glib::GString {
         unsafe {
             from_glib_full(ffi::gst_validate_report_get_reporter_name(
                 self.to_glib_none().0,
diff --git a/gstreamer-validate/src/auto/reporter.rs b/gstreamer-validate/src/auto/reporter.rs
index 3e6aa0c56..0508858cd 100644
--- a/gstreamer-validate/src/auto/reporter.rs
+++ b/gstreamer-validate/src/auto/reporter.rs
@@ -68,7 +68,7 @@ pub trait ReporterExt: 'static {
     fn set_handle_g_logs(&self);
 
     #[doc(alias = "gst_validate_reporter_set_name")]
-    fn set_name(&self, name: &str);
+    fn set_name(&self, name: Option<&str>);
 
     #[doc(alias = "gst_validate_reporter_set_runner")]
     fn set_runner(&self, runner: &impl IsA<Runner>);
@@ -148,7 +148,7 @@ impl<O: IsA<Reporter>> ReporterExt for O {
         }
     }
 
-    fn set_name(&self, name: &str) {
+    fn set_name(&self, name: Option<&str>) {
         unsafe {
             ffi::gst_validate_reporter_set_name(
                 self.as_ref().to_glib_none().0,
diff --git a/gstreamer-validate/src/auto/versions.txt b/gstreamer-validate/src/auto/versions.txt
index 4133cf20b..a18bf5ca8 100644
--- a/gstreamer-validate/src/auto/versions.txt
+++ b/gstreamer-validate/src/auto/versions.txt
@@ -1,3 +1,3 @@
-Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-validate/sys/Cargo.toml b/gstreamer-validate/sys/Cargo.toml
index 7bbb1cf2f..d366846e6 100644
--- a/gstreamer-validate/sys/Cargo.toml
+++ b/gstreamer-validate/sys/Cargo.toml
@@ -48,4 +48,4 @@ shell-words = "1.0.0"
 tempfile = "3"
 
 [features]
-dox = []
+dox = ["glib/dox", "gio/dox", "gobject/dox", "gst/dox"]
diff --git a/gstreamer-validate/sys/build.rs b/gstreamer-validate/sys/build.rs
index c8ef202cf..5762ce067 100644
--- a/gstreamer-validate/sys/build.rs
+++ b/gstreamer-validate/sys/build.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #[cfg(not(feature = "dox"))]
diff --git a/gstreamer-validate/sys/src/auto/versions.txt b/gstreamer-validate/sys/src/auto/versions.txt
new file mode 100644
index 000000000..a18bf5ca8
--- /dev/null
+++ b/gstreamer-validate/sys/src/auto/versions.txt
@@ -0,0 +1,3 @@
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-validate/sys/src/lib.rs b/gstreamer-validate/sys/src/lib.rs
index 6fb0fa685..3911e57ba 100644
--- a/gstreamer-validate/sys/src/lib.rs
+++ b/gstreamer-validate/sys/src/lib.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #![allow(non_camel_case_types, non_upper_case_globals, non_snake_case)]
diff --git a/gstreamer-validate/sys/tests/abi.rs b/gstreamer-validate/sys/tests/abi.rs
index 8d03d4a4c..2dbd527d9 100644
--- a/gstreamer-validate/sys/tests/abi.rs
+++ b/gstreamer-validate/sys/tests/abi.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 use gstreamer_validate_sys::*;
diff --git a/gstreamer-validate/sys/tests/constant.c b/gstreamer-validate/sys/tests/constant.c
index de23b7139..cc23e7f15 100644
--- a/gstreamer-validate/sys/tests/constant.c
+++ b/gstreamer-validate/sys/tests/constant.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-validate/sys/tests/layout.c b/gstreamer-validate/sys/tests/layout.c
index f1f9df10c..e5349c816 100644
--- a/gstreamer-validate/sys/tests/layout.c
+++ b/gstreamer-validate/sys/tests/layout.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-video/src/auto/enums.rs b/gstreamer-video/src/auto/enums.rs
index 68a203cdd..37c6ee010 100644
--- a/gstreamer-video/src/auto/enums.rs
+++ b/gstreamer-video/src/auto/enums.rs
@@ -810,7 +810,7 @@ impl VideoCaptionType {
     }
 
     #[doc(alias = "gst_video_caption_type_to_caps")]
-    pub fn to_caps(self) -> Option<gst::Caps> {
+    pub fn to_caps(self) -> gst::Caps {
         assert_initialized_main_thread!();
         unsafe { from_glib_full(ffi::gst_video_caption_type_to_caps(self.into_glib())) }
     }
@@ -1131,7 +1131,7 @@ impl VideoColorPrimaries {
 
     //#[doc(alias = "gst_video_color_primaries_get_info")]
     //#[doc(alias = "get_info")]
-    //pub fn info(self) -> /*Ignored*/Option<VideoColorPrimariesInfo> {
+    //pub fn info(self) -> /*Ignored*/VideoColorPrimariesInfo {
     //    unsafe { TODO: call ffi:gst_video_color_primaries_get_info() }
     //}
 
diff --git a/gstreamer-video/src/auto/versions.txt b/gstreamer-video/src/auto/versions.txt
index 4133cf20b..a18bf5ca8 100644
--- a/gstreamer-video/src/auto/versions.txt
+++ b/gstreamer-video/src/auto/versions.txt
@@ -1,3 +1,3 @@
-Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-video/src/auto/video_aggregator.rs b/gstreamer-video/src/auto/video_aggregator.rs
index 4209af484..145a49b5e 100644
--- a/gstreamer-video/src/auto/video_aggregator.rs
+++ b/gstreamer-video/src/auto/video_aggregator.rs
@@ -26,13 +26,13 @@ pub trait VideoAggregatorExt: 'static {
     //#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_20")))]
     //#[doc(alias = "gst_video_aggregator_get_execution_task_pool")]
     //#[doc(alias = "get_execution_task_pool")]
-    //fn execution_task_pool(&self) -> /*Ignored*/Option<gst::TaskPool>;
+    //fn execution_task_pool(&self) -> /*Ignored*/gst::TaskPool;
 }
 
 impl<O: IsA<VideoAggregator>> VideoAggregatorExt for O {
     //#[cfg(any(feature = "v1_20", feature = "dox"))]
     //#[cfg_attr(feature = "dox", doc(cfg(feature = "v1_20")))]
-    //fn execution_task_pool(&self) -> /*Ignored*/Option<gst::TaskPool> {
+    //fn execution_task_pool(&self) -> /*Ignored*/gst::TaskPool {
     //    unsafe { TODO: call ffi:gst_video_aggregator_get_execution_task_pool() }
     //}
 }
diff --git a/gstreamer-video/src/auto/video_encoder.rs b/gstreamer-video/src/auto/video_encoder.rs
index ee5d6bec2..15e75c530 100644
--- a/gstreamer-video/src/auto/video_encoder.rs
+++ b/gstreamer-video/src/auto/video_encoder.rs
@@ -32,7 +32,7 @@ unsafe impl Sync for VideoEncoder {}
 
 pub trait VideoEncoderExt: 'static {
     #[doc(alias = "gst_video_encoder_allocate_output_buffer")]
-    fn allocate_output_buffer(&self, size: usize) -> Result<gst::Buffer, glib::BoolError>;
+    fn allocate_output_buffer(&self, size: usize) -> gst::Buffer;
 
     #[doc(alias = "gst_video_encoder_get_max_encode_time")]
     #[doc(alias = "get_max_encode_time")]
@@ -84,13 +84,12 @@ pub trait VideoEncoderExt: 'static {
 }
 
 impl<O: IsA<VideoEncoder>> VideoEncoderExt for O {
-    fn allocate_output_buffer(&self, size: usize) -> Result<gst::Buffer, glib::BoolError> {
+    fn allocate_output_buffer(&self, size: usize) -> gst::Buffer {
         unsafe {
-            Option::<_>::from_glib_full(ffi::gst_video_encoder_allocate_output_buffer(
+            from_glib_full(ffi::gst_video_encoder_allocate_output_buffer(
                 self.as_ref().to_glib_none().0,
                 size,
             ))
-            .ok_or_else(|| glib::bool_error!("Failed to allocate output buffer"))
         }
     }
 
diff --git a/gstreamer-video/sys/Cargo.toml b/gstreamer-video/sys/Cargo.toml
index 0d4896755..5cd911bbf 100644
--- a/gstreamer-video/sys/Cargo.toml
+++ b/gstreamer-video/sys/Cargo.toml
@@ -29,7 +29,7 @@ v1_16 = []
 v1_18 = ["v1_16"]
 v1_20 = ["v1_18"]
 v1_22 = ["v1_20"]
-dox = []
+dox = ["glib/dox", "gobject/dox", "gst/dox", "gst_base/dox"]
 
 [lib]
 name = "gstreamer_video_sys"
diff --git a/gstreamer-video/sys/build.rs b/gstreamer-video/sys/build.rs
index c8ef202cf..5762ce067 100644
--- a/gstreamer-video/sys/build.rs
+++ b/gstreamer-video/sys/build.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #[cfg(not(feature = "dox"))]
diff --git a/gstreamer-video/sys/src/auto/versions.txt b/gstreamer-video/sys/src/auto/versions.txt
new file mode 100644
index 000000000..a18bf5ca8
--- /dev/null
+++ b/gstreamer-video/sys/src/auto/versions.txt
@@ -0,0 +1,3 @@
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-video/sys/src/lib.rs b/gstreamer-video/sys/src/lib.rs
index 39baeb6f2..9f5ab62ef 100644
--- a/gstreamer-video/sys/src/lib.rs
+++ b/gstreamer-video/sys/src/lib.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #![allow(non_camel_case_types, non_upper_case_globals, non_snake_case)]
diff --git a/gstreamer-video/sys/tests/abi.rs b/gstreamer-video/sys/tests/abi.rs
index 002e3267b..c8adacc4a 100644
--- a/gstreamer-video/sys/tests/abi.rs
+++ b/gstreamer-video/sys/tests/abi.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 use gstreamer_video_sys::*;
diff --git a/gstreamer-video/sys/tests/constant.c b/gstreamer-video/sys/tests/constant.c
index 46476d30a..c1bcb6e68 100644
--- a/gstreamer-video/sys/tests/constant.c
+++ b/gstreamer-video/sys/tests/constant.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-video/sys/tests/layout.c b/gstreamer-video/sys/tests/layout.c
index 3a7b33ed7..1d6610f4b 100644
--- a/gstreamer-video/sys/tests/layout.c
+++ b/gstreamer-video/sys/tests/layout.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-webrtc/src/auto/versions.txt b/gstreamer-webrtc/src/auto/versions.txt
index 4133cf20b..a18bf5ca8 100644
--- a/gstreamer-webrtc/src/auto/versions.txt
+++ b/gstreamer-webrtc/src/auto/versions.txt
@@ -1,3 +1,3 @@
-Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-webrtc/src/auto/web_rtcice.rs b/gstreamer-webrtc/src/auto/web_rtcice.rs
index 2fd2008b5..0768c66ce 100644
--- a/gstreamer-webrtc/src/auto/web_rtcice.rs
+++ b/gstreamer-webrtc/src/auto/web_rtcice.rs
@@ -109,13 +109,13 @@ pub trait WebRTCICEExt: 'static {
     ) -> bool;
 
     #[doc(alias = "gst_webrtc_ice_set_stun_server")]
-    fn set_stun_server(&self, uri: &str);
+    fn set_stun_server(&self, uri: Option<&str>);
 
     #[doc(alias = "gst_webrtc_ice_set_tos")]
     fn set_tos(&self, stream: &impl IsA<WebRTCICEStream>, tos: u32);
 
     #[doc(alias = "gst_webrtc_ice_set_turn_server")]
-    fn set_turn_server(&self, uri: &str);
+    fn set_turn_server(&self, uri: Option<&str>);
 
     #[cfg(any(feature = "v1_20", feature = "dox"))]
     #[cfg_attr(feature = "dox", doc(cfg(feature = "v1_20")))]
@@ -319,7 +319,7 @@ impl<O: IsA<WebRTCICE>> WebRTCICEExt for O {
         unsafe extern "C" fn func_func<P: Fn(&WebRTCICE, u32, &str) + Send + Sync + 'static>(
             ice: *mut ffi::GstWebRTCICE,
             stream_id: libc::c_uint,
-            candidate: *mut libc::c_char,
+            candidate: *const libc::c_char,
             user_data: glib::ffi::gpointer,
         ) {
             let ice = from_glib_borrow(ice);
@@ -361,7 +361,7 @@ impl<O: IsA<WebRTCICE>> WebRTCICEExt for O {
         }
     }
 
-    fn set_stun_server(&self, uri: &str) {
+    fn set_stun_server(&self, uri: Option<&str>) {
         unsafe {
             ffi::gst_webrtc_ice_set_stun_server(
                 self.as_ref().to_glib_none().0,
@@ -380,7 +380,7 @@ impl<O: IsA<WebRTCICE>> WebRTCICEExt for O {
         }
     }
 
-    fn set_turn_server(&self, uri: &str) {
+    fn set_turn_server(&self, uri: Option<&str>) {
         unsafe {
             ffi::gst_webrtc_ice_set_turn_server(
                 self.as_ref().to_glib_none().0,
diff --git a/gstreamer-webrtc/sys/Cargo.toml b/gstreamer-webrtc/sys/Cargo.toml
index 3906f8cd7..f1389be94 100644
--- a/gstreamer-webrtc/sys/Cargo.toml
+++ b/gstreamer-webrtc/sys/Cargo.toml
@@ -26,7 +26,7 @@ v1_16 = ["v1_14_1"]
 v1_18 = ["v1_16"]
 v1_20 = ["v1_18"]
 v1_22 = ["v1_20"]
-dox = []
+dox = ["glib/dox", "gst_sdp/dox"]
 
 [lib]
 name = "gstreamer_webrtc_sys"
diff --git a/gstreamer-webrtc/sys/build.rs b/gstreamer-webrtc/sys/build.rs
index c8ef202cf..5762ce067 100644
--- a/gstreamer-webrtc/sys/build.rs
+++ b/gstreamer-webrtc/sys/build.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #[cfg(not(feature = "dox"))]
diff --git a/gstreamer-webrtc/sys/src/auto/versions.txt b/gstreamer-webrtc/sys/src/auto/versions.txt
new file mode 100644
index 000000000..a18bf5ca8
--- /dev/null
+++ b/gstreamer-webrtc/sys/src/auto/versions.txt
@@ -0,0 +1,3 @@
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer-webrtc/sys/src/lib.rs b/gstreamer-webrtc/sys/src/lib.rs
index 414857ac5..4f6672583 100644
--- a/gstreamer-webrtc/sys/src/lib.rs
+++ b/gstreamer-webrtc/sys/src/lib.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #![allow(non_camel_case_types, non_upper_case_globals, non_snake_case)]
@@ -158,7 +158,7 @@ pub const GST_WEBRTC_STATS_CERTIFICATE: GstWebRTCStatsType = 14;
 
 // Callbacks
 pub type GstWebRTCICEOnCandidateFunc =
-    Option<unsafe extern "C" fn(*mut GstWebRTCICE, c_uint, *mut c_char, gpointer)>;
+    Option<unsafe extern "C" fn(*mut GstWebRTCICE, c_uint, *const c_char, gpointer)>;
 
 // Records
 #[repr(C)]
@@ -228,16 +228,16 @@ pub struct GstWebRTCICEClass {
         unsafe extern "C" fn(
             *mut GstWebRTCICE,
             *mut GstWebRTCICEStream,
-            *mut c_char,
-            *mut c_char,
+            *const c_char,
+            *const c_char,
         ) -> gboolean,
     >,
     pub set_remote_credentials: Option<
         unsafe extern "C" fn(
             *mut GstWebRTCICE,
             *mut GstWebRTCICEStream,
-            *mut c_char,
-            *mut c_char,
+            *const c_char,
+            *const c_char,
         ) -> gboolean,
     >,
     pub add_turn_server: Option<unsafe extern "C" fn(*mut GstWebRTCICE, *const c_char) -> gboolean>,
@@ -806,8 +806,8 @@ extern "C" {
     pub fn gst_webrtc_ice_set_local_credentials(
         ice: *mut GstWebRTCICE,
         stream: *mut GstWebRTCICEStream,
-        ufrag: *mut c_char,
-        pwd: *mut c_char,
+        ufrag: *const c_char,
+        pwd: *const c_char,
     ) -> gboolean;
     #[cfg(any(feature = "v1_22", feature = "dox"))]
     #[cfg_attr(feature = "dox", doc(cfg(feature = "v1_22")))]
@@ -822,8 +822,8 @@ extern "C" {
     pub fn gst_webrtc_ice_set_remote_credentials(
         ice: *mut GstWebRTCICE,
         stream: *mut GstWebRTCICEStream,
-        ufrag: *mut c_char,
-        pwd: *mut c_char,
+        ufrag: *const c_char,
+        pwd: *const c_char,
     ) -> gboolean;
     #[cfg(any(feature = "v1_22", feature = "dox"))]
     #[cfg_attr(feature = "dox", doc(cfg(feature = "v1_22")))]
@@ -871,7 +871,7 @@ extern "C" {
         ice: *mut GstWebRTCICETransport,
         stream_id: c_uint,
         component: GstWebRTCICEComponent,
-        attr: *mut c_char,
+        attr: *const c_char,
     );
     pub fn gst_webrtc_ice_transport_selected_pair_change(ice: *mut GstWebRTCICETransport);
 
diff --git a/gstreamer-webrtc/sys/tests/abi.rs b/gstreamer-webrtc/sys/tests/abi.rs
index 6a2d8b73f..83a86970b 100644
--- a/gstreamer-webrtc/sys/tests/abi.rs
+++ b/gstreamer-webrtc/sys/tests/abi.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 use gstreamer_webrtc_sys::*;
diff --git a/gstreamer-webrtc/sys/tests/constant.c b/gstreamer-webrtc/sys/tests/constant.c
index 855ca3317..5bd9e57ac 100644
--- a/gstreamer-webrtc/sys/tests/constant.c
+++ b/gstreamer-webrtc/sys/tests/constant.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer-webrtc/sys/tests/layout.c b/gstreamer-webrtc/sys/tests/layout.c
index 3f992a4c9..39b3a32aa 100644
--- a/gstreamer-webrtc/sys/tests/layout.c
+++ b/gstreamer-webrtc/sys/tests/layout.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer/src/auto/object.rs b/gstreamer/src/auto/object.rs
index 43401b8f3..68ff716c4 100644
--- a/gstreamer/src/auto/object.rs
+++ b/gstreamer/src/auto/object.rs
@@ -99,7 +99,7 @@ pub trait GstObjectExt: 'static {
 
     //#[doc(alias = "gst_object_get_value_array")]
     //#[doc(alias = "get_value_array")]
-    //fn is_value_array(&self, property_name: &str, timestamp: impl Into<Option<ClockTime>>, interval: impl Into<Option<ClockTime>>, n_values: u32, values: /*Unimplemented*/Option<Basic: Pointer>) -> bool;
+    //fn is_value_array(&self, property_name: &str, timestamp: impl Into<Option<ClockTime>>, interval: impl Into<Option<ClockTime>>, values: /*Unimplemented*/&[&Basic: Pointer]) -> bool;
 
     #[doc(alias = "gst_object_has_active_control_bindings")]
     fn has_active_control_bindings(&self) -> bool;
@@ -217,7 +217,7 @@ impl<O: IsA<Object>> GstObjectExt for O {
         }
     }
 
-    //fn is_value_array(&self, property_name: &str, timestamp: impl Into<Option<ClockTime>>, interval: impl Into<Option<ClockTime>>, n_values: u32, values: /*Unimplemented*/Option<Basic: Pointer>) -> bool {
+    //fn is_value_array(&self, property_name: &str, timestamp: impl Into<Option<ClockTime>>, interval: impl Into<Option<ClockTime>>, values: /*Unimplemented*/&[&Basic: Pointer]) -> bool {
     //    unsafe { TODO: call ffi:gst_object_get_value_array() }
     //}
 
diff --git a/gstreamer/src/auto/versions.txt b/gstreamer/src/auto/versions.txt
index 4133cf20b..a18bf5ca8 100644
--- a/gstreamer/src/auto/versions.txt
+++ b/gstreamer/src/auto/versions.txt
@@ -1,3 +1,3 @@
-Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer/sys/Cargo.toml b/gstreamer/sys/Cargo.toml
index 24f69cd7e..8f86a760f 100644
--- a/gstreamer/sys/Cargo.toml
+++ b/gstreamer/sys/Cargo.toml
@@ -22,7 +22,7 @@ v1_18 = ["v1_16"]
 v1_18_3 = ["v1_18"]
 v1_20 = ["v1_18_3"]
 v1_22 = ["v1_20_4"]
-dox = []
+dox = ["glib/dox", "gobject/dox"]
 v1_20_4 = ["v1_20"]
 
 [lib]
diff --git a/gstreamer/sys/build.rs b/gstreamer/sys/build.rs
index c8ef202cf..5762ce067 100644
--- a/gstreamer/sys/build.rs
+++ b/gstreamer/sys/build.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #[cfg(not(feature = "dox"))]
diff --git a/gstreamer/sys/src/auto/versions.txt b/gstreamer/sys/src/auto/versions.txt
new file mode 100644
index 000000000..a18bf5ca8
--- /dev/null
+++ b/gstreamer/sys/src/auto/versions.txt
@@ -0,0 +1,3 @@
+Generated by gir (https://github.com/gtk-rs/gir @ 952ff416b599)
+from gir-files (https://github.com/gtk-rs/gir-files @ 89a11aa6a362)
+from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ d0371b812964)
diff --git a/gstreamer/sys/src/lib.rs b/gstreamer/sys/src/lib.rs
index e316b996b..bc833b5a2 100644
--- a/gstreamer/sys/src/lib.rs
+++ b/gstreamer/sys/src/lib.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #![allow(non_camel_case_types, non_upper_case_globals, non_snake_case)]
diff --git a/gstreamer/sys/tests/abi.rs b/gstreamer/sys/tests/abi.rs
index 5c647efff..2abc58a55 100644
--- a/gstreamer/sys/tests/abi.rs
+++ b/gstreamer/sys/tests/abi.rs
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 use gstreamer_sys::*;
diff --git a/gstreamer/sys/tests/constant.c b/gstreamer/sys/tests/constant.c
index 51172632d..818456c22 100644
--- a/gstreamer/sys/tests/constant.c
+++ b/gstreamer/sys/tests/constant.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"
diff --git a/gstreamer/sys/tests/layout.c b/gstreamer/sys/tests/layout.c
index d8991e117..e83d24507 100644
--- a/gstreamer/sys/tests/layout.c
+++ b/gstreamer/sys/tests/layout.c
@@ -1,6 +1,6 @@
-// Generated by gir (https://github.com/gtk-rs/gir @ b3147f2b6043)
-// from gir-files (https://github.com/gtk-rs/gir-files @ 7fa401e3ee5d)
-// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git @ 2860909848fa)
+// This file was generated by gir (https://github.com/gtk-rs/gir)
+// from gir-files (https://github.com/gtk-rs/gir-files)
+// from gst-gir-files (https://gitlab.freedesktop.org/gstreamer/gir-files-rs.git)
 // DO NOT EDIT
 
 #include "manual.h"