Port BaseTransform subclassing

Gir_GstBase.toml

@@ -16,7 +16,6 @@ external_libraries = [
 ]
 
 generate = [
-    "GstBase.BaseTransform",
     "GstBase.PushSrc",
 ]
 
@@ -87,6 +86,11 @@ status = "generate"
     # Pass by value, to be added manually
     ignore = true
 
+[[object]]
+name = "GstBase.BaseTransform"
+subclassing = true
+status = "generate"
+
 [[object]]
 name = "GstBase.Aggregator"
 status = "generate"

gstreamer-base/src/auto/base_transform.rs

@@ -2,6 +2,7 @@
 // from gir-files (https://github.com/gtk-rs/gir-files)
 // DO NOT EDIT
 
+use BaseTransformClass;
 use ffi;
 use glib;
 use glib::StaticType;
@@ -21,7 +22,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct BaseTransform(Object<ffi::GstBaseTransform, ffi::GstBaseTransformClass>): [
+    pub struct BaseTransform(Object<ffi::GstBaseTransform, ffi::GstBaseTransformClass, BaseTransformClass>): [
         gst::Element => gst_ffi::GstElement,
         gst::Object => gst_ffi::GstObject,
     ];

gstreamer-base/src/base_transform.rs

@@ -8,8 +8,9 @@
 
 use ffi;
 use glib::translate::*;
-use glib::IsA;
+use glib::{IsA, IsClassFor};
 use gst;
+use std::ops;
 use BaseTransform;
 
 pub trait BaseTransformExtManual {
@@ -26,3 +27,27 @@ impl<O: IsA<BaseTransform>> BaseTransformExtManual for O {
         }
     }
 }
+
+#[repr(C)]
+pub struct BaseTransformClass(ffi::GstBaseTransformClass);
+
+unsafe impl IsClassFor for BaseTransformClass {
+    type Instance = BaseTransform;
+}
+
+unsafe impl Send for BaseTransformClass {}
+unsafe impl Sync for BaseTransformClass {}
+
+impl ops::Deref for BaseTransformClass {
+    type Target = gst::ElementClass;
+
+    fn deref(&self) -> &Self::Target {
+        self.upcast_ref()
+    }
+}
+
+impl ops::DerefMut for BaseTransformClass {
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        self.upcast_ref_mut()
+    }
+}

gstreamer-base/src/lib.rs

@@ -50,6 +50,7 @@ pub use base_sink::BaseSinkClass;
 mod base_src;
 pub use base_src::BaseSrcClass;
 mod base_transform;
+pub use base_transform::BaseTransformClass;
 
 // Re-export all the traits in a prelude module, so that applications
 // can always "use gst::prelude::*" without getting conflicts

gstreamer-base/src/subclass/base_transform.rs

@@ -0,0 +1,636 @@
+// Copyright (C) 2017,2018 Sebastian Dröge <sebastian@centricular.com>
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use ffi;
+use glib_ffi;
+use gst_ffi;
+
+use glib::translate::*;
+use prelude::*;
+
+use glib::subclass::prelude::*;
+use gst;
+use gst::subclass::prelude::*;
+
+use BaseTransform;
+use BaseTransformClass;
+
+pub trait BaseTransformImpl: ElementImpl + Send + Sync + 'static {
+    fn start(&self, _element: &BaseTransform) -> bool {
+        true
+    }
+
+    fn stop(&self, _element: &BaseTransform) -> bool {
+        true
+    }
+
+    fn transform_caps(
+        &self,
+        element: &BaseTransform,
+        direction: gst::PadDirection,
+        caps: &gst::Caps,
+        filter: Option<&gst::Caps>,
+    ) -> gst::Caps {
+        self.parent_transform_caps(element, direction, caps, filter)
+    }
+
+    fn fixate_caps(
+        &self,
+        element: &BaseTransform,
+        direction: gst::PadDirection,
+        caps: &gst::Caps,
+        othercaps: gst::Caps,
+    ) -> gst::Caps {
+        self.parent_fixate_caps(element, direction, caps, othercaps)
+    }
+
+    fn set_caps(
+        &self,
+        _element: &BaseTransform,
+        _incaps: &gst::Caps,
+        _outcaps: &gst::Caps,
+    ) -> bool {
+        true
+    }
+
+    fn accept_caps(
+        &self,
+        element: &BaseTransform,
+        direction: gst::PadDirection,
+        caps: &gst::Caps,
+    ) -> bool {
+        self.parent_accept_caps(element, direction, caps)
+    }
+
+    fn query(
+        &self,
+        element: &BaseTransform,
+        direction: gst::PadDirection,
+        query: &mut gst::QueryRef,
+    ) -> bool {
+        BaseTransformImpl::parent_query(self, element, direction, query)
+    }
+
+    fn transform_size(
+        &self,
+        element: &BaseTransform,
+        direction: gst::PadDirection,
+        caps: &gst::Caps,
+        size: usize,
+        othercaps: &gst::Caps,
+    ) -> Option<usize> {
+        self.parent_transform_size(element, direction, caps, size, othercaps)
+    }
+
+    fn get_unit_size(&self, _element: &BaseTransform, _caps: &gst::Caps) -> Option<usize> {
+        unimplemented!();
+    }
+
+    fn sink_event(&self, element: &BaseTransform, event: gst::Event) -> bool {
+        self.parent_sink_event(element, event)
+    }
+
+    fn src_event(&self, element: &BaseTransform, event: gst::Event) -> bool {
+        self.parent_src_event(element, event)
+    }
+
+    fn transform(
+        &self,
+        _element: &BaseTransform,
+        _inbuf: &gst::Buffer,
+        _outbuf: &mut gst::BufferRef,
+    ) -> gst::FlowReturn {
+        unimplemented!();
+    }
+
+    fn transform_ip(&self, _element: &BaseTransform, _buf: &mut gst::BufferRef) -> gst::FlowReturn {
+        unimplemented!();
+    }
+
+    fn transform_ip_passthrough(
+        &self,
+        _element: &BaseTransform,
+        _buf: &gst::BufferRef,
+    ) -> gst::FlowReturn {
+        unimplemented!();
+    }
+
+    fn parent_transform_caps(
+        &self,
+        element: &BaseTransform,
+        direction: gst::PadDirection,
+        caps: &gst::Caps,
+        filter: Option<&gst::Caps>,
+    ) -> gst::Caps {
+        unsafe {
+            let data = self.get_type_data();
+            let parent_class = data.as_ref().get_parent_class() as *mut ffi::GstBaseTransformClass;
+            match (*parent_class).transform_caps {
+                Some(f) => from_glib_full(f(
+                    element.to_glib_none().0,
+                    direction.to_glib(),
+                    caps.to_glib_none().0,
+                    filter.to_glib_none().0,
+                )),
+                None => caps.clone(),
+            }
+        }
+    }
+
+    fn parent_fixate_caps(
+        &self,
+        element: &BaseTransform,
+        direction: gst::PadDirection,
+        caps: &gst::Caps,
+        othercaps: gst::Caps,
+    ) -> gst::Caps {
+        unsafe {
+            let data = self.get_type_data();
+            let parent_class = data.as_ref().get_parent_class() as *mut ffi::GstBaseTransformClass;
+            match (*parent_class).fixate_caps {
+                Some(f) => from_glib_full(f(
+                    element.to_glib_none().0,
+                    direction.to_glib(),
+                    caps.to_glib_none().0,
+                    othercaps.into_ptr(),
+                )),
+                None => othercaps,
+            }
+        }
+    }
+
+    fn parent_accept_caps(
+        &self,
+        element: &BaseTransform,
+        direction: gst::PadDirection,
+        caps: &gst::Caps,
+    ) -> bool {
+        unsafe {
+            let data = self.get_type_data();
+            let parent_class = data.as_ref().get_parent_class() as *mut ffi::GstBaseTransformClass;
+            (*parent_class)
+                .accept_caps
+                .map(|f| {
+                    from_glib(f(
+                        element.to_glib_none().0,
+                        direction.to_glib(),
+                        caps.to_glib_none().0,
+                    ))
+                })
+                .unwrap_or(false)
+        }
+    }
+
+    fn parent_query(
+        &self,
+        element: &BaseTransform,
+        direction: gst::PadDirection,
+        query: &mut gst::QueryRef,
+    ) -> bool {
+        unsafe {
+            let data = self.get_type_data();
+            let parent_class = data.as_ref().get_parent_class() as *mut ffi::GstBaseTransformClass;
+            (*parent_class)
+                .query
+                .map(|f| {
+                    from_glib(f(
+                        element.to_glib_none().0,
+                        direction.to_glib(),
+                        query.as_mut_ptr(),
+                    ))
+                })
+                .unwrap_or(false)
+        }
+    }
+
+    fn parent_transform_size(
+        &self,
+        element: &BaseTransform,
+        direction: gst::PadDirection,
+        caps: &gst::Caps,
+        size: usize,
+        othercaps: &gst::Caps,
+    ) -> Option<usize> {
+        unsafe {
+            let data = self.get_type_data();
+            let parent_class = data.as_ref().get_parent_class() as *mut ffi::GstBaseTransformClass;
+            (*parent_class)
+                .transform_size
+                .map(|f| {
+                    let mut othersize = 0;
+                    let res: bool = from_glib(f(
+                        element.to_glib_none().0,
+                        direction.to_glib(),
+                        caps.to_glib_none().0,
+                        size,
+                        othercaps.to_glib_none().0,
+                        &mut othersize,
+                    ));
+                    if res {
+                        Some(othersize)
+                    } else {
+                        None
+                    }
+                })
+                .unwrap_or(None)
+        }
+    }
+
+    fn parent_sink_event(&self, element: &BaseTransform, event: gst::Event) -> bool {
+        unsafe {
+            let data = self.get_type_data();
+            let parent_class = data.as_ref().get_parent_class() as *mut ffi::GstBaseTransformClass;
+            (*parent_class)
+                .sink_event
+                .map(|f| from_glib(f(element.to_glib_none().0, event.into_ptr())))
+                .unwrap_or(false)
+        }
+    }
+
+    fn parent_src_event(&self, element: &BaseTransform, event: gst::Event) -> bool {
+        unsafe {
+            let data = self.get_type_data();
+            let parent_class = data.as_ref().get_parent_class() as *mut ffi::GstBaseTransformClass;
+            (*parent_class)
+                .src_event
+                .map(|f| from_glib(f(element.to_glib_none().0, event.into_ptr())))
+                .unwrap_or(false)
+        }
+    }
+}
+
+#[derive(Copy, Clone, Debug, PartialEq, Eq)]
+pub enum BaseTransformMode {
+    AlwaysInPlace,
+    NeverInPlace,
+    Both,
+}
+
+unsafe impl<T: ObjectSubclass + BaseTransformImpl> IsSubclassable<T> for BaseTransformClass
+where
+    <T as ObjectSubclass>::Instance: PanicPoison,
+{
+    fn override_vfuncs(&mut self) {
+        <gst::ElementClass as IsSubclassable<T>>::override_vfuncs(self);
+        unsafe {
+            let klass = &mut *(self as *const Self as *mut ffi::GstBaseTransformClass);
+            klass.start = Some(base_transform_start::<T>);
+            klass.stop = Some(base_transform_stop::<T>);
+            klass.transform_caps = Some(base_transform_transform_caps::<T>);
+            klass.fixate_caps = Some(base_transform_fixate_caps::<T>);
+            klass.set_caps = Some(base_transform_set_caps::<T>);
+            klass.accept_caps = Some(base_transform_accept_caps::<T>);
+            klass.query = Some(base_transform_query::<T>);
+            klass.transform_size = Some(base_transform_transform_size::<T>);
+            klass.get_unit_size = Some(base_transform_get_unit_size::<T>);
+            klass.sink_event = Some(base_transform_sink_event::<T>);
+            klass.src_event = Some(base_transform_src_event::<T>);
+        }
+    }
+}
+
+pub unsafe trait BaseTransformClassSubclassExt: Sized + 'static {
+    fn configure<T: ObjectSubclass + BaseTransformImpl>(
+        &mut self,
+        mode: BaseTransformMode,
+        passthrough_on_same_caps: bool,
+        transform_ip_on_passthrough: bool,
+    ) where
+        Self: ClassStruct<Type = T>,
+        <T as ObjectSubclass>::Instance: PanicPoison,
+    {
+        unsafe {
+            let klass = &mut *(self as *const Self as *mut ffi::GstBaseTransformClass);
+
+            klass.passthrough_on_same_caps = passthrough_on_same_caps.to_glib();
+            klass.transform_ip_on_passthrough = transform_ip_on_passthrough.to_glib();
+
+            match mode {
+                BaseTransformMode::AlwaysInPlace => {
+                    klass.transform_ip = Some(base_transform_transform_ip::<T>);
+                }
+                BaseTransformMode::NeverInPlace => {
+                    klass.transform = Some(base_transform_transform::<T>);
+                }
+                BaseTransformMode::Both => {
+                    klass.transform = Some(base_transform_transform::<T>);
+                    klass.transform_ip = Some(base_transform_transform_ip::<T>);
+                }
+            }
+        }
+    }
+}
+
+unsafe impl<T: ClassStruct> BaseTransformClassSubclassExt for T
+where
+    T::Type: ObjectSubclass + BaseTransformImpl,
+    <T::Type as ObjectSubclass>::Instance: PanicPoison,
+{
+}
+
+unsafe extern "C" fn base_transform_start<T: ObjectSubclass>(
+    ptr: *mut ffi::GstBaseTransform,
+) -> glib_ffi::gboolean
+where
+    T: BaseTransformImpl,
+    T::Instance: PanicPoison,
+{
+    glib_floating_reference_guard!(ptr);
+    let instance = &*(ptr as *mut T::Instance);
+    let imp = instance.get_impl();
+    let wrap: BaseTransform = from_glib_borrow(ptr);
+
+    gst_panic_to_error!(&wrap, &instance.panicked(), false, { imp.start(&wrap) }).to_glib()
+}
+
+unsafe extern "C" fn base_transform_stop<T: ObjectSubclass>(
+    ptr: *mut ffi::GstBaseTransform,
+) -> glib_ffi::gboolean
+where
+    T: BaseTransformImpl,
+    T::Instance: PanicPoison,
+{
+    glib_floating_reference_guard!(ptr);
+    let instance = &*(ptr as *mut T::Instance);
+    let imp = instance.get_impl();
+    let wrap: BaseTransform = from_glib_borrow(ptr);
+
+    gst_panic_to_error!(&wrap, &instance.panicked(), false, { imp.stop(&wrap) }).to_glib()
+}
+
+unsafe extern "C" fn base_transform_transform_caps<T: ObjectSubclass>(
+    ptr: *mut ffi::GstBaseTransform,
+    direction: gst_ffi::GstPadDirection,
+    caps: *mut gst_ffi::GstCaps,
+    filter: *mut gst_ffi::GstCaps,
+) -> *mut gst_ffi::GstCaps
+where
+    T: BaseTransformImpl,
+    T::Instance: PanicPoison,
+{
+    glib_floating_reference_guard!(ptr);
+    let instance = &*(ptr as *mut T::Instance);
+    let imp = instance.get_impl();
+    let wrap: BaseTransform = from_glib_borrow(ptr);
+
+    gst_panic_to_error!(&wrap, &instance.panicked(), gst::Caps::new_empty(), {
+        let filter = if filter.is_null() {
+            None
+        } else {
+            Some(from_glib_borrow(filter))
+        };
+
+        imp.transform_caps(
+            &wrap,
+            from_glib(direction),
+            &from_glib_borrow(caps),
+            filter.as_ref(),
+        )
+    })
+    .into_ptr()
+}
+
+unsafe extern "C" fn base_transform_fixate_caps<T: ObjectSubclass>(
+    ptr: *mut ffi::GstBaseTransform,
+    direction: gst_ffi::GstPadDirection,
+    caps: *mut gst_ffi::GstCaps,
+    othercaps: *mut gst_ffi::GstCaps,
+) -> *mut gst_ffi::GstCaps
+where
+    T: BaseTransformImpl,
+    T::Instance: PanicPoison,
+{
+    glib_floating_reference_guard!(ptr);
+    let instance = &*(ptr as *mut T::Instance);
+    let imp = instance.get_impl();
+    let wrap: BaseTransform = from_glib_borrow(ptr);
+
+    gst_panic_to_error!(&wrap, &instance.panicked(), gst::Caps::new_empty(), {
+        imp.fixate_caps(
+            &wrap,
+            from_glib(direction),
+            &from_glib_borrow(caps),
+            from_glib_full(othercaps),
+        )
+    })
+    .into_ptr()
+}
+
+unsafe extern "C" fn base_transform_set_caps<T: ObjectSubclass>(
+    ptr: *mut ffi::GstBaseTransform,
+    incaps: *mut gst_ffi::GstCaps,
+    outcaps: *mut gst_ffi::GstCaps,
+) -> glib_ffi::gboolean
+where
+    T: BaseTransformImpl,
+    T::Instance: PanicPoison,
+{
+    glib_floating_reference_guard!(ptr);
+    let instance = &*(ptr as *mut T::Instance);
+    let imp = instance.get_impl();
+    let wrap: BaseTransform = from_glib_borrow(ptr);
+
+    gst_panic_to_error!(&wrap, &instance.panicked(), false, {
+        imp.set_caps(&wrap, &from_glib_borrow(incaps), &from_glib_borrow(outcaps))
+    })
+    .to_glib()
+}
+
+unsafe extern "C" fn base_transform_accept_caps<T: ObjectSubclass>(
+    ptr: *mut ffi::GstBaseTransform,
+    direction: gst_ffi::GstPadDirection,
+    caps: *mut gst_ffi::GstCaps,
+) -> glib_ffi::gboolean
+where
+    T: BaseTransformImpl,
+    T::Instance: PanicPoison,
+{
+    glib_floating_reference_guard!(ptr);
+    let instance = &*(ptr as *mut T::Instance);
+    let imp = instance.get_impl();
+    let wrap: BaseTransform = from_glib_borrow(ptr);
+
+    gst_panic_to_error!(&wrap, &instance.panicked(), false, {
+        imp.accept_caps(&wrap, from_glib(direction), &from_glib_borrow(caps))
+    })
+    .to_glib()
+}
+
+unsafe extern "C" fn base_transform_query<T: ObjectSubclass>(
+    ptr: *mut ffi::GstBaseTransform,
+    direction: gst_ffi::GstPadDirection,
+    query: *mut gst_ffi::GstQuery,
+) -> glib_ffi::gboolean
+where
+    T: BaseTransformImpl,
+    T::Instance: PanicPoison,
+{
+    glib_floating_reference_guard!(ptr);
+    let instance = &*(ptr as *mut T::Instance);
+    let imp = instance.get_impl();
+    let wrap: BaseTransform = from_glib_borrow(ptr);
+
+    gst_panic_to_error!(&wrap, &instance.panicked(), false, {
+        BaseTransformImpl::query(
+            imp,
+            &wrap,
+            from_glib(direction),
+            gst::QueryRef::from_mut_ptr(query),
+        )
+    })
+    .to_glib()
+}
+
+unsafe extern "C" fn base_transform_transform_size<T: ObjectSubclass>(
+    ptr: *mut ffi::GstBaseTransform,
+    direction: gst_ffi::GstPadDirection,
+    caps: *mut gst_ffi::GstCaps,
+    size: usize,
+    othercaps: *mut gst_ffi::GstCaps,
+    othersize: *mut usize,
+) -> glib_ffi::gboolean
+where
+    T: BaseTransformImpl,
+    T::Instance: PanicPoison,
+{
+    glib_floating_reference_guard!(ptr);
+    let instance = &*(ptr as *mut T::Instance);
+    let imp = instance.get_impl();
+    let wrap: BaseTransform = from_glib_borrow(ptr);
+
+    gst_panic_to_error!(&wrap, &instance.panicked(), false, {
+        match imp.transform_size(
+            &wrap,
+            from_glib(direction),
+            &from_glib_borrow(caps),
+            size,
+            &from_glib_borrow(othercaps),
+        ) {
+            Some(s) => {
+                *othersize = s;
+                true
+            }
+            None => false,
+        }
+    })
+    .to_glib()
+}
+
+unsafe extern "C" fn base_transform_get_unit_size<T: ObjectSubclass>(
+    ptr: *mut ffi::GstBaseTransform,
+    caps: *mut gst_ffi::GstCaps,
+    size: *mut usize,
+) -> glib_ffi::gboolean
+where
+    T: BaseTransformImpl,
+    T::Instance: PanicPoison,
+{
+    glib_floating_reference_guard!(ptr);
+    let instance = &*(ptr as *mut T::Instance);
+    let imp = instance.get_impl();
+    let wrap: BaseTransform = from_glib_borrow(ptr);
+
+    gst_panic_to_error!(&wrap, &instance.panicked(), false, {
+        match imp.get_unit_size(&wrap, &from_glib_borrow(caps)) {
+            Some(s) => {
+                *size = s;
+                true
+            }
+            None => false,
+        }
+    })
+    .to_glib()
+}
+
+unsafe extern "C" fn base_transform_sink_event<T: ObjectSubclass>(
+    ptr: *mut ffi::GstBaseTransform,
+    event: *mut gst_ffi::GstEvent,
+) -> glib_ffi::gboolean
+where
+    T: BaseTransformImpl,
+    T::Instance: PanicPoison,
+{
+    glib_floating_reference_guard!(ptr);
+    let instance = &*(ptr as *mut T::Instance);
+    let imp = instance.get_impl();
+    let wrap: BaseTransform = from_glib_borrow(ptr);
+
+    gst_panic_to_error!(&wrap, &instance.panicked(), false, {
+        imp.sink_event(&wrap, from_glib_full(event))
+    })
+    .to_glib()
+}
+
+unsafe extern "C" fn base_transform_src_event<T: ObjectSubclass>(
+    ptr: *mut ffi::GstBaseTransform,
+    event: *mut gst_ffi::GstEvent,
+) -> glib_ffi::gboolean
+where
+    T: BaseTransformImpl,
+    T::Instance: PanicPoison,
+{
+    glib_floating_reference_guard!(ptr);
+    let instance = &*(ptr as *mut T::Instance);
+    let imp = instance.get_impl();
+    let wrap: BaseTransform = from_glib_borrow(ptr);
+
+    gst_panic_to_error!(&wrap, &instance.panicked(), false, {
+        imp.src_event(&wrap, from_glib_full(event))
+    })
+    .to_glib()
+}
+
+unsafe extern "C" fn base_transform_transform<T: ObjectSubclass>(
+    ptr: *mut ffi::GstBaseTransform,
+    inbuf: *mut gst_ffi::GstBuffer,
+    outbuf: *mut gst_ffi::GstBuffer,
+) -> gst_ffi::GstFlowReturn
+where
+    T: BaseTransformImpl,
+    T::Instance: PanicPoison,
+{
+    glib_floating_reference_guard!(ptr);
+    let instance = &*(ptr as *mut T::Instance);
+    let imp = instance.get_impl();
+    let wrap: BaseTransform = from_glib_borrow(ptr);
+
+    gst_panic_to_error!(&wrap, &instance.panicked(), gst::FlowReturn::Error, {
+        imp.transform(
+            &wrap,
+            &from_glib_borrow(inbuf),
+            gst::BufferRef::from_mut_ptr(outbuf),
+        )
+    })
+    .to_glib()
+}
+
+unsafe extern "C" fn base_transform_transform_ip<T: ObjectSubclass>(
+    ptr: *mut ffi::GstBaseTransform,
+    buf: *mut *mut gst_ffi::GstBuffer,
+) -> gst_ffi::GstFlowReturn
+where
+    T: BaseTransformImpl,
+    T::Instance: PanicPoison,
+{
+    glib_floating_reference_guard!(ptr);
+    let instance = &*(ptr as *mut T::Instance);
+    let imp = instance.get_impl();
+    let wrap: BaseTransform = from_glib_borrow(ptr);
+
+    // FIXME: Wrong signature in FFI
+    let buf = buf as *mut gst_ffi::GstBuffer;
+
+    gst_panic_to_error!(&wrap, &instance.panicked(), gst::FlowReturn::Error, {
+        if from_glib(ffi::gst_base_transform_is_passthrough(ptr)) {
+            imp.transform_ip_passthrough(&wrap, gst::BufferRef::from_ptr(buf))
+        } else {
+            imp.transform_ip(&wrap, gst::BufferRef::from_mut_ptr(buf))
+        }
+    })
+    .to_glib()
+}

gstreamer-base/src/subclass/mod.rs

@@ -10,8 +10,12 @@
 
 pub mod base_sink;
 pub mod base_src;
+pub mod base_transform;
+
+pub use self::base_transform::BaseTransformMode;
 
 pub mod prelude {
     pub use super::base_sink::BaseSinkImpl;
     pub use super::base_src::BaseSrcImpl;
+    pub use super::base_transform::{BaseTransformClassSubclassExt, BaseTransformImpl};
 }