diff --git a/Gir_GstApp.toml b/Gir_GstApp.toml
new file mode 100644
index 000000000..f878ab911
--- /dev/null
+++ b/Gir_GstApp.toml
@@ -0,0 +1,42 @@
+[options]
+girs_dir = "gir-files"
+library = "GstApp"
+version = "1.0"
+min_cfg_version = "1.8"
+target_path = "gstreamer-app"
+work_mode = "normal"
+concurrency = "send+sync"
+generate_safety_asserts = true
+
+external_libraries = [
+    "GLib",
+    "GObject",
+]
+
+generate = [
+    "GstApp.AppSink",
+    "GstApp.AppSrc",
+    "GstApp.AppStreamType",
+]
+
+manual = [
+    "GObject.Object",
+    "Gst.ClockTime",
+    "Gst.FlowReturn",
+    "Gst.Format",
+]
+
+[[object]]
+name = "Gst.Caps"
+status = "manual"
+ref_mode = "ref"
+
+[[object]]
+name = "Gst.Buffer"
+status = "manual"
+ref_mode = "ref"
+
+[[object]]
+name = "Gst.Sample"
+status = "manual"
+ref_mode = "ref"
diff --git a/gstreamer-app/src/auto/app_sink.rs b/gstreamer-app/src/auto/app_sink.rs
new file mode 100644
index 000000000..e92636c5e
--- /dev/null
+++ b/gstreamer-app/src/auto/app_sink.rs
@@ -0,0 +1,336 @@
+// This file was generated by gir (f00d658) from gir-files (???)
+// DO NOT EDIT
+
+use ffi;
+use glib;
+use glib::Value;
+use glib::object::Downcast;
+use glib::object::IsA;
+use glib::signal::connect;
+use glib::translate::*;
+use glib_ffi;
+use gobject_ffi;
+use gst;
+use gst_ffi;
+use std::boxed::Box as Box_;
+use std::mem;
+use std::mem::transmute;
+use std::ptr;
+
+glib_wrapper! {
+    pub struct AppSink(Object<ffi::GstAppSink>);
+
+    match fn {
+        get_type => || ffi::gst_app_sink_get_type(),
+    }
+}
+
+unsafe impl Send for AppSink {}
+unsafe impl Sync for AppSink {}
+
+pub trait AppSinkExt {
+    #[cfg(feature = "v1_12")]
+    fn get_buffer_list_support(&self) -> bool;
+
+    fn get_caps(&self) -> Option<gst::Caps>;
+
+    fn get_drop(&self) -> bool;
+
+    fn get_emit_signals(&self) -> bool;
+
+    fn get_max_buffers(&self) -> u32;
+
+    fn get_wait_on_eos(&self) -> bool;
+
+    fn is_eos(&self) -> bool;
+
+    fn pull_preroll(&self) -> Option<gst::Sample>;
+
+    fn pull_sample(&self) -> Option<gst::Sample>;
+
+    #[cfg(feature = "v1_12")]
+    fn set_buffer_list_support(&self, enable_lists: bool);
+
+    //fn set_callbacks<P: Into<Option</*Unimplemented*/Fundamental: Pointer>>>(&self, callbacks: /*Ignored*/&mut AppSinkCallbacks, user_data: P, notify: /*Unknown conversion*//*Unimplemented*/DestroyNotify);
+
+    fn set_caps(&self, caps: &gst::Caps);
+
+    fn set_drop(&self, drop: bool);
+
+    fn set_emit_signals(&self, emit: bool);
+
+    fn set_max_buffers(&self, max: u32);
+
+    fn set_wait_on_eos(&self, wait: bool);
+
+    #[cfg(feature = "v1_10")]
+    fn try_pull_preroll(&self, timeout: gst::ClockTime) -> Option<gst::Sample>;
+
+    #[cfg(feature = "v1_10")]
+    fn try_pull_sample(&self, timeout: gst::ClockTime) -> Option<gst::Sample>;
+
+    fn get_property_buffer_list(&self) -> bool;
+
+    fn set_property_buffer_list(&self, buffer_list: bool);
+
+    fn get_property_eos(&self) -> bool;
+
+    fn connect_eos<F: Fn(&Self) + Send + Sync + 'static>(&self, f: F) -> u64;
+
+    fn connect_new_preroll<F: Fn(&Self) -> gst::FlowReturn + Send + Sync + 'static>(&self, f: F) -> u64;
+
+    fn connect_new_sample<F: Fn(&Self) -> gst::FlowReturn + Send + Sync + 'static>(&self, f: F) -> u64;
+
+    fn connect_pull_preroll<F: Fn(&Self) -> gst::Sample + Send + Sync + 'static>(&self, f: F) -> u64;
+
+    fn connect_pull_sample<F: Fn(&Self) -> gst::Sample + Send + Sync + 'static>(&self, f: F) -> u64;
+
+    #[cfg(feature = "v1_10")]
+    fn connect_try_pull_preroll<F: Fn(&Self, u64) -> gst::Sample + Send + Sync + 'static>(&self, f: F) -> u64;
+
+    #[cfg(feature = "v1_10")]
+    fn connect_try_pull_sample<F: Fn(&Self, u64) -> gst::Sample + Send + Sync + 'static>(&self, f: F) -> u64;
+}
+
+impl<O: IsA<AppSink> + IsA<glib::object::Object>> AppSinkExt for O {
+    #[cfg(feature = "v1_12")]
+    fn get_buffer_list_support(&self) -> bool {
+        unsafe {
+            from_glib(ffi::gst_app_sink_get_buffer_list_support(self.to_glib_none().0))
+        }
+    }
+
+    fn get_caps(&self) -> Option<gst::Caps> {
+        unsafe {
+            from_glib_full(ffi::gst_app_sink_get_caps(self.to_glib_none().0))
+        }
+    }
+
+    fn get_drop(&self) -> bool {
+        unsafe {
+            from_glib(ffi::gst_app_sink_get_drop(self.to_glib_none().0))
+        }
+    }
+
+    fn get_emit_signals(&self) -> bool {
+        unsafe {
+            from_glib(ffi::gst_app_sink_get_emit_signals(self.to_glib_none().0))
+        }
+    }
+
+    fn get_max_buffers(&self) -> u32 {
+        unsafe {
+            ffi::gst_app_sink_get_max_buffers(self.to_glib_none().0)
+        }
+    }
+
+    fn get_wait_on_eos(&self) -> bool {
+        unsafe {
+            from_glib(ffi::gst_app_sink_get_wait_on_eos(self.to_glib_none().0))
+        }
+    }
+
+    fn is_eos(&self) -> bool {
+        unsafe {
+            from_glib(ffi::gst_app_sink_is_eos(self.to_glib_none().0))
+        }
+    }
+
+    fn pull_preroll(&self) -> Option<gst::Sample> {
+        unsafe {
+            from_glib_full(ffi::gst_app_sink_pull_preroll(self.to_glib_none().0))
+        }
+    }
+
+    fn pull_sample(&self) -> Option<gst::Sample> {
+        unsafe {
+            from_glib_full(ffi::gst_app_sink_pull_sample(self.to_glib_none().0))
+        }
+    }
+
+    #[cfg(feature = "v1_12")]
+    fn set_buffer_list_support(&self, enable_lists: bool) {
+        unsafe {
+            ffi::gst_app_sink_set_buffer_list_support(self.to_glib_none().0, enable_lists.to_glib());
+        }
+    }
+
+    //fn set_callbacks<P: Into<Option</*Unimplemented*/Fundamental: Pointer>>>(&self, callbacks: /*Ignored*/&mut AppSinkCallbacks, user_data: P, notify: /*Unknown conversion*//*Unimplemented*/DestroyNotify) {
+    //    unsafe { TODO: call ffi::gst_app_sink_set_callbacks() }
+    //}
+
+    fn set_caps(&self, caps: &gst::Caps) {
+        unsafe {
+            ffi::gst_app_sink_set_caps(self.to_glib_none().0, caps.to_glib_none().0);
+        }
+    }
+
+    fn set_drop(&self, drop: bool) {
+        unsafe {
+            ffi::gst_app_sink_set_drop(self.to_glib_none().0, drop.to_glib());
+        }
+    }
+
+    fn set_emit_signals(&self, emit: bool) {
+        unsafe {
+            ffi::gst_app_sink_set_emit_signals(self.to_glib_none().0, emit.to_glib());
+        }
+    }
+
+    fn set_max_buffers(&self, max: u32) {
+        unsafe {
+            ffi::gst_app_sink_set_max_buffers(self.to_glib_none().0, max);
+        }
+    }
+
+    fn set_wait_on_eos(&self, wait: bool) {
+        unsafe {
+            ffi::gst_app_sink_set_wait_on_eos(self.to_glib_none().0, wait.to_glib());
+        }
+    }
+
+    #[cfg(feature = "v1_10")]
+    fn try_pull_preroll(&self, timeout: gst::ClockTime) -> Option<gst::Sample> {
+        unsafe {
+            from_glib_full(ffi::gst_app_sink_try_pull_preroll(self.to_glib_none().0, timeout))
+        }
+    }
+
+    #[cfg(feature = "v1_10")]
+    fn try_pull_sample(&self, timeout: gst::ClockTime) -> Option<gst::Sample> {
+        unsafe {
+            from_glib_full(ffi::gst_app_sink_try_pull_sample(self.to_glib_none().0, timeout))
+        }
+    }
+
+    fn get_property_buffer_list(&self) -> bool {
+        let mut value = Value::from(&false);
+        unsafe {
+            gobject_ffi::g_object_get_property(self.to_glib_none().0, "buffer-list".to_glib_none().0, value.to_glib_none_mut().0);
+        }
+        value.get().unwrap()
+    }
+
+    fn set_property_buffer_list(&self, buffer_list: bool) {
+        unsafe {
+            gobject_ffi::g_object_set_property(self.to_glib_none().0, "buffer-list".to_glib_none().0, Value::from(&buffer_list).to_glib_none().0);
+        }
+    }
+
+    fn get_property_eos(&self) -> bool {
+        let mut value = Value::from(&false);
+        unsafe {
+            gobject_ffi::g_object_get_property(self.to_glib_none().0, "eos".to_glib_none().0, value.to_glib_none_mut().0);
+        }
+        value.get().unwrap()
+    }
+
+    fn connect_eos<F: Fn(&Self) + Send + Sync + 'static>(&self, f: F) -> u64 {
+        unsafe {
+            let f: Box_<Box_<Fn(&Self) + Send + Sync + 'static>> = Box_::new(Box_::new(f));
+            connect(self.to_glib_none().0, "eos",
+                transmute(eos_trampoline::<Self> as usize), Box_::into_raw(f) as *mut _)
+        }
+    }
+
+    fn connect_new_preroll<F: Fn(&Self) -> gst::FlowReturn + Send + Sync + 'static>(&self, f: F) -> u64 {
+        unsafe {
+            let f: Box_<Box_<Fn(&Self) -> gst::FlowReturn + Send + Sync + 'static>> = Box_::new(Box_::new(f));
+            connect(self.to_glib_none().0, "new-preroll",
+                transmute(new_preroll_trampoline::<Self> as usize), Box_::into_raw(f) as *mut _)
+        }
+    }
+
+    fn connect_new_sample<F: Fn(&Self) -> gst::FlowReturn + Send + Sync + 'static>(&self, f: F) -> u64 {
+        unsafe {
+            let f: Box_<Box_<Fn(&Self) -> gst::FlowReturn + Send + Sync + 'static>> = Box_::new(Box_::new(f));
+            connect(self.to_glib_none().0, "new-sample",
+                transmute(new_sample_trampoline::<Self> as usize), Box_::into_raw(f) as *mut _)
+        }
+    }
+
+    fn connect_pull_preroll<F: Fn(&Self) -> gst::Sample + Send + Sync + 'static>(&self, f: F) -> u64 {
+        unsafe {
+            let f: Box_<Box_<Fn(&Self) -> gst::Sample + Send + Sync + 'static>> = Box_::new(Box_::new(f));
+            connect(self.to_glib_none().0, "pull-preroll",
+                transmute(pull_preroll_trampoline::<Self> as usize), Box_::into_raw(f) as *mut _)
+        }
+    }
+
+    fn connect_pull_sample<F: Fn(&Self) -> gst::Sample + Send + Sync + 'static>(&self, f: F) -> u64 {
+        unsafe {
+            let f: Box_<Box_<Fn(&Self) -> gst::Sample + Send + Sync + 'static>> = Box_::new(Box_::new(f));
+            connect(self.to_glib_none().0, "pull-sample",
+                transmute(pull_sample_trampoline::<Self> as usize), Box_::into_raw(f) as *mut _)
+        }
+    }
+
+    #[cfg(feature = "v1_10")]
+    fn connect_try_pull_preroll<F: Fn(&Self, u64) -> gst::Sample + Send + Sync + 'static>(&self, f: F) -> u64 {
+        unsafe {
+            let f: Box_<Box_<Fn(&Self, u64) -> gst::Sample + Send + Sync + 'static>> = Box_::new(Box_::new(f));
+            connect(self.to_glib_none().0, "try-pull-preroll",
+                transmute(try_pull_preroll_trampoline::<Self> as usize), Box_::into_raw(f) as *mut _)
+        }
+    }
+
+    #[cfg(feature = "v1_10")]
+    fn connect_try_pull_sample<F: Fn(&Self, u64) -> gst::Sample + Send + Sync + 'static>(&self, f: F) -> u64 {
+        unsafe {
+            let f: Box_<Box_<Fn(&Self, u64) -> gst::Sample + Send + Sync + 'static>> = Box_::new(Box_::new(f));
+            connect(self.to_glib_none().0, "try-pull-sample",
+                transmute(try_pull_sample_trampoline::<Self> as usize), Box_::into_raw(f) as *mut _)
+        }
+    }
+}
+
+unsafe extern "C" fn eos_trampoline<P>(this: *mut ffi::GstAppSink, f: glib_ffi::gpointer)
+where P: IsA<AppSink> {
+    callback_guard!();
+    let f: &Box_<Fn(&P) + Send + Sync + 'static> = transmute(f);
+    f(&AppSink::from_glib_none(this).downcast_unchecked())
+}
+
+unsafe extern "C" fn new_preroll_trampoline<P>(this: *mut ffi::GstAppSink, f: glib_ffi::gpointer) -> gst_ffi::GstFlowReturn
+where P: IsA<AppSink> {
+    callback_guard!();
+    let f: &Box_<Fn(&P) -> gst::FlowReturn + Send + Sync + 'static> = transmute(f);
+    f(&AppSink::from_glib_none(this).downcast_unchecked()).to_glib()
+}
+
+unsafe extern "C" fn new_sample_trampoline<P>(this: *mut ffi::GstAppSink, f: glib_ffi::gpointer) -> gst_ffi::GstFlowReturn
+where P: IsA<AppSink> {
+    callback_guard!();
+    let f: &Box_<Fn(&P) -> gst::FlowReturn + Send + Sync + 'static> = transmute(f);
+    f(&AppSink::from_glib_none(this).downcast_unchecked()).to_glib()
+}
+
+unsafe extern "C" fn pull_preroll_trampoline<P>(this: *mut ffi::GstAppSink, f: glib_ffi::gpointer) -> *mut gst_ffi::GstSample
+where P: IsA<AppSink> {
+    callback_guard!();
+    let f: &Box_<Fn(&P) -> gst::Sample + Send + Sync + 'static> = transmute(f);
+    f(&AppSink::from_glib_none(this).downcast_unchecked()).to_glib_full()
+}
+
+unsafe extern "C" fn pull_sample_trampoline<P>(this: *mut ffi::GstAppSink, f: glib_ffi::gpointer) -> *mut gst_ffi::GstSample
+where P: IsA<AppSink> {
+    callback_guard!();
+    let f: &Box_<Fn(&P) -> gst::Sample + Send + Sync + 'static> = transmute(f);
+    f(&AppSink::from_glib_none(this).downcast_unchecked()).to_glib_full()
+}
+
+#[cfg(feature = "v1_10")]
+unsafe extern "C" fn try_pull_preroll_trampoline<P>(this: *mut ffi::GstAppSink, timeout: u64, f: glib_ffi::gpointer) -> *mut gst_ffi::GstSample
+where P: IsA<AppSink> {
+    callback_guard!();
+    let f: &Box_<Fn(&P, u64) -> gst::Sample + Send + Sync + 'static> = transmute(f);
+    f(&AppSink::from_glib_none(this).downcast_unchecked(), timeout).to_glib_full()
+}
+
+#[cfg(feature = "v1_10")]
+unsafe extern "C" fn try_pull_sample_trampoline<P>(this: *mut ffi::GstAppSink, timeout: u64, f: glib_ffi::gpointer) -> *mut gst_ffi::GstSample
+where P: IsA<AppSink> {
+    callback_guard!();
+    let f: &Box_<Fn(&P, u64) -> gst::Sample + Send + Sync + 'static> = transmute(f);
+    f(&AppSink::from_glib_none(this).downcast_unchecked(), timeout).to_glib_full()
+}
diff --git a/gstreamer-app/src/auto/app_src.rs b/gstreamer-app/src/auto/app_src.rs
new file mode 100644
index 000000000..6019ab742
--- /dev/null
+++ b/gstreamer-app/src/auto/app_src.rs
@@ -0,0 +1,428 @@
+// This file was generated by gir (f00d658) from gir-files (???)
+// DO NOT EDIT
+
+use AppStreamType;
+use ffi;
+use glib;
+use glib::Value;
+use glib::object::Downcast;
+use glib::object::IsA;
+use glib::signal::connect;
+use glib::translate::*;
+use glib_ffi;
+use gobject_ffi;
+use gst;
+use gst_ffi;
+use libc;
+use std::boxed::Box as Box_;
+use std::mem;
+use std::mem::transmute;
+use std::ptr;
+
+glib_wrapper! {
+    pub struct AppSrc(Object<ffi::GstAppSrc>);
+
+    match fn {
+        get_type => || ffi::gst_app_src_get_type(),
+    }
+}
+
+unsafe impl Send for AppSrc {}
+unsafe impl Sync for AppSrc {}
+
+pub trait AppSrcExt {
+    fn end_of_stream(&self) -> gst::FlowReturn;
+
+    fn get_caps(&self) -> Option<gst::Caps>;
+
+    fn get_current_level_bytes(&self) -> u64;
+
+    #[cfg(feature = "v1_10")]
+    fn get_duration(&self) -> gst::ClockTime;
+
+    fn get_emit_signals(&self) -> bool;
+
+    fn get_latency(&self, min: u64, max: u64);
+
+    fn get_max_bytes(&self) -> u64;
+
+    fn get_size(&self) -> i64;
+
+    fn get_stream_type(&self) -> AppStreamType;
+
+    fn push_buffer(&self, buffer: &gst::Buffer) -> gst::FlowReturn;
+
+    fn push_sample(&self, sample: &gst::Sample) -> gst::FlowReturn;
+
+    //fn set_callbacks<P: Into<Option</*Unimplemented*/Fundamental: Pointer>>>(&self, callbacks: /*Ignored*/&mut AppSrcCallbacks, user_data: P, notify: /*Unknown conversion*//*Unimplemented*/DestroyNotify);
+
+    fn set_caps(&self, caps: &gst::Caps);
+
+    #[cfg(feature = "v1_10")]
+    fn set_duration(&self, duration: gst::ClockTime);
+
+    fn set_emit_signals(&self, emit: bool);
+
+    fn set_latency(&self, min: u64, max: u64);
+
+    fn set_max_bytes(&self, max: u64);
+
+    fn set_size(&self, size: i64);
+
+    fn set_stream_type(&self, type_: AppStreamType);
+
+    fn get_property_block(&self) -> bool;
+
+    fn set_property_block(&self, block: bool);
+
+    fn get_property_current_level_bytes(&self) -> u64;
+
+    fn get_property_duration(&self) -> u64;
+
+    fn set_property_duration(&self, duration: u64);
+
+    fn get_property_format(&self) -> gst::Format;
+
+    fn set_property_format(&self, format: gst::Format);
+
+    fn get_property_is_live(&self) -> bool;
+
+    fn set_property_is_live(&self, is_live: bool);
+
+    fn get_property_max_latency(&self) -> i64;
+
+    fn set_property_max_latency(&self, max_latency: i64);
+
+    fn get_property_min_latency(&self) -> i64;
+
+    fn set_property_min_latency(&self, min_latency: i64);
+
+    fn get_property_min_percent(&self) -> u32;
+
+    fn set_property_min_percent(&self, min_percent: u32);
+
+    fn connect_end_of_stream<F: Fn(&Self) -> gst::FlowReturn + Send + Sync + 'static>(&self, f: F) -> u64;
+
+    fn connect_enough_data<F: Fn(&Self) + Send + Sync + 'static>(&self, f: F) -> u64;
+
+    fn connect_need_data<F: Fn(&Self, u32) + Send + Sync + 'static>(&self, f: F) -> u64;
+
+    fn connect_push_buffer<F: Fn(&Self, &gst::Buffer) -> gst::FlowReturn + Send + Sync + 'static>(&self, f: F) -> u64;
+
+    fn connect_push_sample<F: Fn(&Self, &gst::Sample) -> gst::FlowReturn + Send + Sync + 'static>(&self, f: F) -> u64;
+
+    fn connect_seek_data<F: Fn(&Self, u64) -> bool + Send + Sync + 'static>(&self, f: F) -> u64;
+}
+
+impl<O: IsA<AppSrc> + IsA<glib::object::Object>> AppSrcExt for O {
+    fn end_of_stream(&self) -> gst::FlowReturn {
+        unsafe {
+            from_glib(ffi::gst_app_src_end_of_stream(self.to_glib_none().0))
+        }
+    }
+
+    fn get_caps(&self) -> Option<gst::Caps> {
+        unsafe {
+            from_glib_full(ffi::gst_app_src_get_caps(self.to_glib_none().0))
+        }
+    }
+
+    fn get_current_level_bytes(&self) -> u64 {
+        unsafe {
+            ffi::gst_app_src_get_current_level_bytes(self.to_glib_none().0)
+        }
+    }
+
+    #[cfg(feature = "v1_10")]
+    fn get_duration(&self) -> gst::ClockTime {
+        unsafe {
+            ffi::gst_app_src_get_duration(self.to_glib_none().0)
+        }
+    }
+
+    fn get_emit_signals(&self) -> bool {
+        unsafe {
+            from_glib(ffi::gst_app_src_get_emit_signals(self.to_glib_none().0))
+        }
+    }
+
+    fn get_latency(&self, min: u64, max: u64) {
+        unsafe {
+            ffi::gst_app_src_get_latency(self.to_glib_none().0, min, max);
+        }
+    }
+
+    fn get_max_bytes(&self) -> u64 {
+        unsafe {
+            ffi::gst_app_src_get_max_bytes(self.to_glib_none().0)
+        }
+    }
+
+    fn get_size(&self) -> i64 {
+        unsafe {
+            ffi::gst_app_src_get_size(self.to_glib_none().0)
+        }
+    }
+
+    fn get_stream_type(&self) -> AppStreamType {
+        unsafe {
+            from_glib(ffi::gst_app_src_get_stream_type(self.to_glib_none().0))
+        }
+    }
+
+    fn push_buffer(&self, buffer: &gst::Buffer) -> gst::FlowReturn {
+        unsafe {
+            from_glib(ffi::gst_app_src_push_buffer(self.to_glib_none().0, buffer.to_glib_full()))
+        }
+    }
+
+    fn push_sample(&self, sample: &gst::Sample) -> gst::FlowReturn {
+        unsafe {
+            from_glib(ffi::gst_app_src_push_sample(self.to_glib_none().0, sample.to_glib_none().0))
+        }
+    }
+
+    //fn set_callbacks<P: Into<Option</*Unimplemented*/Fundamental: Pointer>>>(&self, callbacks: /*Ignored*/&mut AppSrcCallbacks, user_data: P, notify: /*Unknown conversion*//*Unimplemented*/DestroyNotify) {
+    //    unsafe { TODO: call ffi::gst_app_src_set_callbacks() }
+    //}
+
+    fn set_caps(&self, caps: &gst::Caps) {
+        unsafe {
+            ffi::gst_app_src_set_caps(self.to_glib_none().0, caps.to_glib_none().0);
+        }
+    }
+
+    #[cfg(feature = "v1_10")]
+    fn set_duration(&self, duration: gst::ClockTime) {
+        unsafe {
+            ffi::gst_app_src_set_duration(self.to_glib_none().0, duration);
+        }
+    }
+
+    fn set_emit_signals(&self, emit: bool) {
+        unsafe {
+            ffi::gst_app_src_set_emit_signals(self.to_glib_none().0, emit.to_glib());
+        }
+    }
+
+    fn set_latency(&self, min: u64, max: u64) {
+        unsafe {
+            ffi::gst_app_src_set_latency(self.to_glib_none().0, min, max);
+        }
+    }
+
+    fn set_max_bytes(&self, max: u64) {
+        unsafe {
+            ffi::gst_app_src_set_max_bytes(self.to_glib_none().0, max);
+        }
+    }
+
+    fn set_size(&self, size: i64) {
+        unsafe {
+            ffi::gst_app_src_set_size(self.to_glib_none().0, size);
+        }
+    }
+
+    fn set_stream_type(&self, type_: AppStreamType) {
+        unsafe {
+            ffi::gst_app_src_set_stream_type(self.to_glib_none().0, type_.to_glib());
+        }
+    }
+
+    fn get_property_block(&self) -> bool {
+        let mut value = Value::from(&false);
+        unsafe {
+            gobject_ffi::g_object_get_property(self.to_glib_none().0, "block".to_glib_none().0, value.to_glib_none_mut().0);
+        }
+        value.get().unwrap()
+    }
+
+    fn set_property_block(&self, block: bool) {
+        unsafe {
+            gobject_ffi::g_object_set_property(self.to_glib_none().0, "block".to_glib_none().0, Value::from(&block).to_glib_none().0);
+        }
+    }
+
+    fn get_property_current_level_bytes(&self) -> u64 {
+        let mut value = Value::from(&0u64);
+        unsafe {
+            gobject_ffi::g_object_get_property(self.to_glib_none().0, "current-level-bytes".to_glib_none().0, value.to_glib_none_mut().0);
+        }
+        value.get().unwrap()
+    }
+
+    fn get_property_duration(&self) -> u64 {
+        let mut value = Value::from(&0u64);
+        unsafe {
+            gobject_ffi::g_object_get_property(self.to_glib_none().0, "duration".to_glib_none().0, value.to_glib_none_mut().0);
+        }
+        value.get().unwrap()
+    }
+
+    fn set_property_duration(&self, duration: u64) {
+        unsafe {
+            gobject_ffi::g_object_set_property(self.to_glib_none().0, "duration".to_glib_none().0, Value::from(&duration).to_glib_none().0);
+        }
+    }
+
+    fn get_property_format(&self) -> gst::Format {
+        let mut value = Value::from(&0);
+        unsafe {
+            gobject_ffi::g_object_get_property(self.to_glib_none().0, "format".to_glib_none().0, value.to_glib_none_mut().0);
+            from_glib(transmute(value.get::<i32>().unwrap()))
+        }
+    }
+
+    fn set_property_format(&self, format: gst::Format) {
+        let format = format.to_glib() as i32;
+        unsafe {
+            gobject_ffi::g_object_set_property(self.to_glib_none().0, "format".to_glib_none().0, Value::from(&format).to_glib_none().0);
+        }
+    }
+
+    fn get_property_is_live(&self) -> bool {
+        let mut value = Value::from(&false);
+        unsafe {
+            gobject_ffi::g_object_get_property(self.to_glib_none().0, "is-live".to_glib_none().0, value.to_glib_none_mut().0);
+        }
+        value.get().unwrap()
+    }
+
+    fn set_property_is_live(&self, is_live: bool) {
+        unsafe {
+            gobject_ffi::g_object_set_property(self.to_glib_none().0, "is-live".to_glib_none().0, Value::from(&is_live).to_glib_none().0);
+        }
+    }
+
+    fn get_property_max_latency(&self) -> i64 {
+        let mut value = Value::from(&0i64);
+        unsafe {
+            gobject_ffi::g_object_get_property(self.to_glib_none().0, "max-latency".to_glib_none().0, value.to_glib_none_mut().0);
+        }
+        value.get().unwrap()
+    }
+
+    fn set_property_max_latency(&self, max_latency: i64) {
+        unsafe {
+            gobject_ffi::g_object_set_property(self.to_glib_none().0, "max-latency".to_glib_none().0, Value::from(&max_latency).to_glib_none().0);
+        }
+    }
+
+    fn get_property_min_latency(&self) -> i64 {
+        let mut value = Value::from(&0i64);
+        unsafe {
+            gobject_ffi::g_object_get_property(self.to_glib_none().0, "min-latency".to_glib_none().0, value.to_glib_none_mut().0);
+        }
+        value.get().unwrap()
+    }
+
+    fn set_property_min_latency(&self, min_latency: i64) {
+        unsafe {
+            gobject_ffi::g_object_set_property(self.to_glib_none().0, "min-latency".to_glib_none().0, Value::from(&min_latency).to_glib_none().0);
+        }
+    }
+
+    fn get_property_min_percent(&self) -> u32 {
+        let mut value = Value::from(&0u32);
+        unsafe {
+            gobject_ffi::g_object_get_property(self.to_glib_none().0, "min-percent".to_glib_none().0, value.to_glib_none_mut().0);
+        }
+        value.get().unwrap()
+    }
+
+    fn set_property_min_percent(&self, min_percent: u32) {
+        unsafe {
+            gobject_ffi::g_object_set_property(self.to_glib_none().0, "min-percent".to_glib_none().0, Value::from(&min_percent).to_glib_none().0);
+        }
+    }
+
+    fn connect_end_of_stream<F: Fn(&Self) -> gst::FlowReturn + Send + Sync + 'static>(&self, f: F) -> u64 {
+        unsafe {
+            let f: Box_<Box_<Fn(&Self) -> gst::FlowReturn + Send + Sync + 'static>> = Box_::new(Box_::new(f));
+            connect(self.to_glib_none().0, "end-of-stream",
+                transmute(end_of_stream_trampoline::<Self> as usize), Box_::into_raw(f) as *mut _)
+        }
+    }
+
+    fn connect_enough_data<F: Fn(&Self) + Send + Sync + 'static>(&self, f: F) -> u64 {
+        unsafe {
+            let f: Box_<Box_<Fn(&Self) + Send + Sync + 'static>> = Box_::new(Box_::new(f));
+            connect(self.to_glib_none().0, "enough-data",
+                transmute(enough_data_trampoline::<Self> as usize), Box_::into_raw(f) as *mut _)
+        }
+    }
+
+    fn connect_need_data<F: Fn(&Self, u32) + Send + Sync + 'static>(&self, f: F) -> u64 {
+        unsafe {
+            let f: Box_<Box_<Fn(&Self, u32) + Send + Sync + 'static>> = Box_::new(Box_::new(f));
+            connect(self.to_glib_none().0, "need-data",
+                transmute(need_data_trampoline::<Self> as usize), Box_::into_raw(f) as *mut _)
+        }
+    }
+
+    fn connect_push_buffer<F: Fn(&Self, &gst::Buffer) -> gst::FlowReturn + Send + Sync + 'static>(&self, f: F) -> u64 {
+        unsafe {
+            let f: Box_<Box_<Fn(&Self, &gst::Buffer) -> gst::FlowReturn + Send + Sync + 'static>> = Box_::new(Box_::new(f));
+            connect(self.to_glib_none().0, "push-buffer",
+                transmute(push_buffer_trampoline::<Self> as usize), Box_::into_raw(f) as *mut _)
+        }
+    }
+
+    fn connect_push_sample<F: Fn(&Self, &gst::Sample) -> gst::FlowReturn + Send + Sync + 'static>(&self, f: F) -> u64 {
+        unsafe {
+            let f: Box_<Box_<Fn(&Self, &gst::Sample) -> gst::FlowReturn + Send + Sync + 'static>> = Box_::new(Box_::new(f));
+            connect(self.to_glib_none().0, "push-sample",
+                transmute(push_sample_trampoline::<Self> as usize), Box_::into_raw(f) as *mut _)
+        }
+    }
+
+    fn connect_seek_data<F: Fn(&Self, u64) -> bool + Send + Sync + 'static>(&self, f: F) -> u64 {
+        unsafe {
+            let f: Box_<Box_<Fn(&Self, u64) -> bool + Send + Sync + 'static>> = Box_::new(Box_::new(f));
+            connect(self.to_glib_none().0, "seek-data",
+                transmute(seek_data_trampoline::<Self> as usize), Box_::into_raw(f) as *mut _)
+        }
+    }
+}
+
+unsafe extern "C" fn end_of_stream_trampoline<P>(this: *mut ffi::GstAppSrc, f: glib_ffi::gpointer) -> gst_ffi::GstFlowReturn
+where P: IsA<AppSrc> {
+    callback_guard!();
+    let f: &Box_<Fn(&P) -> gst::FlowReturn + Send + Sync + 'static> = transmute(f);
+    f(&AppSrc::from_glib_none(this).downcast_unchecked()).to_glib()
+}
+
+unsafe extern "C" fn enough_data_trampoline<P>(this: *mut ffi::GstAppSrc, f: glib_ffi::gpointer)
+where P: IsA<AppSrc> {
+    callback_guard!();
+    let f: &Box_<Fn(&P) + Send + Sync + 'static> = transmute(f);
+    f(&AppSrc::from_glib_none(this).downcast_unchecked())
+}
+
+unsafe extern "C" fn need_data_trampoline<P>(this: *mut ffi::GstAppSrc, length: libc::c_uint, f: glib_ffi::gpointer)
+where P: IsA<AppSrc> {
+    callback_guard!();
+    let f: &Box_<Fn(&P, u32) + Send + Sync + 'static> = transmute(f);
+    f(&AppSrc::from_glib_none(this).downcast_unchecked(), length)
+}
+
+unsafe extern "C" fn push_buffer_trampoline<P>(this: *mut ffi::GstAppSrc, buffer: *mut gst_ffi::GstBuffer, f: glib_ffi::gpointer) -> gst_ffi::GstFlowReturn
+where P: IsA<AppSrc> {
+    callback_guard!();
+    let f: &Box_<Fn(&P, &gst::Buffer) -> gst::FlowReturn + Send + Sync + 'static> = transmute(f);
+    f(&AppSrc::from_glib_none(this).downcast_unchecked(), &from_glib_none(buffer)).to_glib()
+}
+
+unsafe extern "C" fn push_sample_trampoline<P>(this: *mut ffi::GstAppSrc, sample: *mut gst_ffi::GstSample, f: glib_ffi::gpointer) -> gst_ffi::GstFlowReturn
+where P: IsA<AppSrc> {
+    callback_guard!();
+    let f: &Box_<Fn(&P, &gst::Sample) -> gst::FlowReturn + Send + Sync + 'static> = transmute(f);
+    f(&AppSrc::from_glib_none(this).downcast_unchecked(), &from_glib_none(sample)).to_glib()
+}
+
+unsafe extern "C" fn seek_data_trampoline<P>(this: *mut ffi::GstAppSrc, offset: u64, f: glib_ffi::gpointer) -> glib_ffi::gboolean
+where P: IsA<AppSrc> {
+    callback_guard!();
+    let f: &Box_<Fn(&P, u64) -> bool + Send + Sync + 'static> = transmute(f);
+    f(&AppSrc::from_glib_none(this).downcast_unchecked(), offset).to_glib()
+}
diff --git a/gstreamer-app/src/auto/enums.rs b/gstreamer-app/src/auto/enums.rs
new file mode 100644
index 000000000..231e512c0
--- /dev/null
+++ b/gstreamer-app/src/auto/enums.rs
@@ -0,0 +1,71 @@
+// This file was generated by gir (f00d658) from gir-files (???)
+// DO NOT EDIT
+
+use ffi;
+use glib::Type;
+use glib::StaticType;
+use glib::value::{Value, SetValue, FromValue, FromValueOptional};
+use gobject_ffi;
+use glib::translate::*;
+use std;
+
+#[derive(Clone, Copy, Debug, Eq, PartialEq, Hash)]
+pub enum AppStreamType {
+    Stream,
+    Seekable,
+    RandomAccess,
+    #[doc(hidden)]
+    __Unknown(i32),
+}
+
+#[doc(hidden)]
+impl ToGlib for AppStreamType {
+    type GlibType = ffi::GstAppStreamType;
+
+    fn to_glib(&self) -> ffi::GstAppStreamType {
+        match *self {
+            AppStreamType::Stream => ffi::GST_APP_STREAM_TYPE_STREAM,
+            AppStreamType::Seekable => ffi::GST_APP_STREAM_TYPE_SEEKABLE,
+            AppStreamType::RandomAccess => ffi::GST_APP_STREAM_TYPE_RANDOM_ACCESS,
+            AppStreamType::__Unknown(value) => unsafe{std::mem::transmute(value)}
+        }
+    }
+}
+
+#[doc(hidden)]
+impl FromGlib<ffi::GstAppStreamType> for AppStreamType {
+    fn from_glib(value: ffi::GstAppStreamType) -> Self {
+        skip_assert_initialized!();
+        match value as i32 {
+            0 => AppStreamType::Stream,
+            1 => AppStreamType::Seekable,
+            2 => AppStreamType::RandomAccess,
+            value => AppStreamType::__Unknown(value),
+        }
+    }
+}
+
+impl StaticType for AppStreamType {
+    fn static_type() -> Type {
+        unsafe { from_glib(ffi::gst_app_stream_type_get_type()) }
+    }
+}
+
+impl<'a> FromValueOptional<'a> for AppStreamType {
+    unsafe fn from_value_optional(value: &Value) -> Option<Self> {
+        Some(FromValue::from_value(value))
+    }
+}
+
+impl<'a> FromValue<'a> for AppStreamType {
+    unsafe fn from_value(value: &Value) -> Self {
+        from_glib(std::mem::transmute::<i32, ffi::GstAppStreamType>(gobject_ffi::g_value_get_enum(value.to_glib_none().0)))
+    }
+}
+
+impl SetValue for AppStreamType {
+    unsafe fn set_value(value: &mut Value, this: &Self) {
+        gobject_ffi::g_value_set_enum(value.to_glib_none_mut().0, this.to_glib() as i32)
+    }
+}
+
diff --git a/gstreamer-app/src/auto/flags.rs b/gstreamer-app/src/auto/flags.rs
new file mode 100644
index 000000000..0d24c0bba
--- /dev/null
+++ b/gstreamer-app/src/auto/flags.rs
@@ -0,0 +1,6 @@
+// This file was generated by gir (f00d658) from gir-files (???)
+// DO NOT EDIT
+
+use ffi;
+use glib::translate::*;
+
diff --git a/gstreamer-app/src/auto/mod.rs b/gstreamer-app/src/auto/mod.rs
new file mode 100644
index 000000000..0b382b0ef
--- /dev/null
+++ b/gstreamer-app/src/auto/mod.rs
@@ -0,0 +1,19 @@
+// This file was generated by gir (f00d658) from gir-files (???)
+// DO NOT EDIT
+
+mod app_sink;
+pub use self::app_sink::AppSink;
+pub use self::app_sink::AppSinkExt;
+
+mod app_src;
+pub use self::app_src::AppSrc;
+pub use self::app_src::AppSrcExt;
+
+mod enums;
+pub use self::enums::AppStreamType;
+
+#[doc(hidden)]
+pub mod traits {
+    pub use super::AppSinkExt;
+    pub use super::AppSrcExt;
+}