mirror of
https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs.git
synced 2024-11-25 21:11:00 +00:00
Make calls into the parent class struct safer and use more useful object wrapper type (T) for virtual methods
This commit is contained in:
Sebastian Dröge
parent
a354116336
commit
41d6343682
8 changed files with 189 additions and 218 deletions
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@ -25,36 +25,32 @@ use gst_base::prelude::*;
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use object::*;
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use element::*;
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pub trait BaseSinkImpl<T: ObjectType>
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pub trait BaseSinkImpl<T: BaseSink>
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: mopa::Any + ObjectImpl<T> + ElementImpl<T> + Send + Sync + 'static {
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fn start(&self, _element: &gst_base::BaseSink) -> bool {
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fn start(&self, _element: &T) -> bool {
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true
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}
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fn stop(&self, _element: &gst_base::BaseSink) -> bool {
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fn stop(&self, _element: &T) -> bool {
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true
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}
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fn render(&self, element: &gst_base::BaseSink, buffer: &gst::BufferRef) -> gst::FlowReturn;
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fn query(&self, element: &gst_base::BaseSink, query: &mut gst::QueryRef) -> bool {
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fn render(&self, element: &T, buffer: &gst::BufferRef) -> gst::FlowReturn;
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fn query(&self, element: &T, query: &mut gst::QueryRef) -> bool {
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element.parent_query(query)
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}
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fn event(&self, element: &gst_base::BaseSink, event: &gst::Event) -> bool {
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fn event(&self, element: &T, event: &gst::Event) -> bool {
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element.parent_event(event)
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}
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}
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mopafy_object_impl!(BaseSinkImpl);
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mopafy_object_impl!(BaseSink, BaseSinkImpl);
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pub unsafe trait BaseSink: IsA<gst_base::BaseSink> {
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pub unsafe trait BaseSink
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: IsA<gst::Element> + IsA<gst_base::BaseSink> + ObjectType {
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fn parent_query(&self, query: &mut gst::QueryRef) -> bool {
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unsafe {
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// Our class
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let klass = *(self.to_glib_none().0 as *const glib_ffi::gpointer);
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// The parent class, RsElement or any other first-level Rust implementation
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let parent_klass = gobject_ffi::g_type_class_peek_parent(klass);
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// The actual parent class as defined in C
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let parent_klass = &*(gobject_ffi::g_type_class_peek_parent(parent_klass) as
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*const gst_base_ffi::GstBaseSinkClass);
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parent_klass
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let klass = self.get_class();
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let parent_klass = (*klass).get_parent_class() as *const gst_base_ffi::GstBaseSinkClass;
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(*parent_klass)
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.query
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.map(|f| from_glib(f(self.to_glib_none().0, query.as_mut_ptr())))
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.unwrap_or(false)
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@ -63,14 +59,9 @@ pub unsafe trait BaseSink: IsA<gst_base::BaseSink> {
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fn parent_event(&self, event: &gst::Event) -> bool {
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unsafe {
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// Our class
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let klass = *(self.to_glib_none().0 as *const glib_ffi::gpointer);
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// The parent class, RsElement or any other first-level Rust implementation
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let parent_klass = gobject_ffi::g_type_class_peek_parent(klass);
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// The actual parent class as defined in C
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let parent_klass = &*(gobject_ffi::g_type_class_peek_parent(parent_klass) as
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*const gst_base_ffi::GstBaseSinkClass);
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parent_klass
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let klass = self.get_class();
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let parent_klass = (*klass).get_parent_class() as *const gst_base_ffi::GstBaseSinkClass;
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(*parent_klass)
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.event
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.map(|f| {
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from_glib(f(self.to_glib_none().0, event.to_glib_none().0))
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@ -80,9 +71,8 @@ pub unsafe trait BaseSink: IsA<gst_base::BaseSink> {
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}
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}
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pub unsafe trait BaseSinkClass<T: ObjectType>
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pub unsafe trait BaseSinkClass<T: BaseSink>
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where
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T: IsA<gst_base::BaseSink>,
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T::ImplType: BaseSinkImpl<T>,
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{
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fn override_vfuncs(&mut self) {
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@ -107,7 +97,7 @@ glib_wrapper! {
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}
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}
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unsafe impl<T: IsA<gst_base::BaseSink>> BaseSink for T {}
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unsafe impl<T: IsA<gst::Element> + IsA<gst_base::BaseSink> + ObjectType> BaseSink for T {}
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pub type RsBaseSinkClass = ClassStruct<RsBaseSink>;
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// FIXME: Boilerplate
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@ -119,27 +109,27 @@ macro_rules! box_base_sink_impl(
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($name:ident) => {
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box_element_impl!($name);
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impl<T: ObjectType> BaseSinkImpl<T> for Box<$name<T>> {
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fn start(&self, element: &gst_base::BaseSink) -> bool {
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impl<T: BaseSink> BaseSinkImpl<T> for Box<$name<T>> {
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fn start(&self, element: &T) -> bool {
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let imp: &$name<T> = self.as_ref();
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imp.start(element)
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}
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fn stop(&self, element: &gst_base::BaseSink) -> bool {
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fn stop(&self, element: &T) -> bool {
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let imp: &$name<T> = self.as_ref();
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imp.stop(element)
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}
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fn render(&self, element: &gst_base::BaseSink, buffer: &gst::BufferRef) -> gst::FlowReturn {
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fn render(&self, element: &T, buffer: &gst::BufferRef) -> gst::FlowReturn {
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let imp: &$name<T> = self.as_ref();
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imp.render(element, buffer)
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}
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fn query(&self, element: &gst_base::BaseSink, query: &mut gst::QueryRef) -> bool {
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fn query(&self, element: &T, query: &mut gst::QueryRef) -> bool {
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let imp: &$name<T> = self.as_ref();
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imp.query(element, query)
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}
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fn event(&self, element: &gst_base::BaseSink, event: &gst::Event) -> bool {
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fn event(&self, element: &T, event: &gst::Event) -> bool {
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let imp: &$name<T> = self.as_ref();
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imp.event(element, event)
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}
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@ -163,52 +153,51 @@ impl ObjectType for RsBaseSink {
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ElementClass::override_vfuncs(klass);
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BaseSinkClass::override_vfuncs(klass);
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}
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object_type_fns!();
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}
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unsafe extern "C" fn base_sink_start<T: ObjectType>(
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unsafe extern "C" fn base_sink_start<T: BaseSink>(
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ptr: *mut gst_base_ffi::GstBaseSink,
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) -> glib_ffi::gboolean
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where
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T: IsA<gst_base::BaseSink>,
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T::ImplType: BaseSinkImpl<T>,
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{
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callback_guard!();
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floating_reference_guard!(ptr);
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let element = &*(ptr as *mut InstanceStruct<T>);
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let wrap: gst_base::BaseSink = from_glib_borrow(ptr);
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let wrap: T = from_glib_borrow(ptr as *mut InstanceStruct<T>);
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let imp = &*element.imp;
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panic_to_error!(&wrap, &element.panicked, false, { imp.start(&wrap) }).to_glib()
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}
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unsafe extern "C" fn base_sink_stop<T: ObjectType>(
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unsafe extern "C" fn base_sink_stop<T: BaseSink>(
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ptr: *mut gst_base_ffi::GstBaseSink,
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) -> glib_ffi::gboolean
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where
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T: IsA<gst_base::BaseSink>,
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T::ImplType: BaseSinkImpl<T>,
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{
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callback_guard!();
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floating_reference_guard!(ptr);
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let element = &*(ptr as *mut InstanceStruct<T>);
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let wrap: gst_base::BaseSink = from_glib_borrow(ptr);
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let wrap: T = from_glib_borrow(ptr as *mut InstanceStruct<T>);
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let imp = &*element.imp;
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panic_to_error!(&wrap, &element.panicked, false, { imp.stop(&wrap) }).to_glib()
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}
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unsafe extern "C" fn base_sink_render<T: ObjectType>(
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unsafe extern "C" fn base_sink_render<T: BaseSink>(
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ptr: *mut gst_base_ffi::GstBaseSink,
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buffer: *mut gst_ffi::GstBuffer,
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) -> gst_ffi::GstFlowReturn
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where
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T: IsA<gst_base::BaseSink>,
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T::ImplType: BaseSinkImpl<T>,
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{
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callback_guard!();
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floating_reference_guard!(ptr);
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let element = &*(ptr as *mut InstanceStruct<T>);
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let wrap: gst_base::BaseSink = from_glib_borrow(ptr);
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let wrap: T = from_glib_borrow(ptr as *mut InstanceStruct<T>);
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let imp = &*element.imp;
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let buffer = gst::BufferRef::from_ptr(buffer);
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@ -217,36 +206,34 @@ where
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}).to_glib()
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}
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unsafe extern "C" fn base_sink_query<T: ObjectType>(
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unsafe extern "C" fn base_sink_query<T: BaseSink>(
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ptr: *mut gst_base_ffi::GstBaseSink,
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query_ptr: *mut gst_ffi::GstQuery,
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) -> glib_ffi::gboolean
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where
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T: IsA<gst_base::BaseSink>,
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T::ImplType: BaseSinkImpl<T>,
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{
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callback_guard!();
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floating_reference_guard!(ptr);
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let element = &*(ptr as *mut InstanceStruct<T>);
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let wrap: gst_base::BaseSink = from_glib_borrow(ptr);
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let wrap: T = from_glib_borrow(ptr as *mut InstanceStruct<T>);
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let imp = &*element.imp;
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let query = gst::QueryRef::from_mut_ptr(query_ptr);
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panic_to_error!(&wrap, &element.panicked, false, { imp.query(&wrap, query) }).to_glib()
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}
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unsafe extern "C" fn base_sink_event<T: ObjectType>(
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unsafe extern "C" fn base_sink_event<T: BaseSink>(
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ptr: *mut gst_base_ffi::GstBaseSink,
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event_ptr: *mut gst_ffi::GstEvent,
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) -> glib_ffi::gboolean
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where
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T: IsA<gst_base::BaseSink>,
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T::ImplType: BaseSinkImpl<T>,
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{
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callback_guard!();
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floating_reference_guard!(ptr);
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let element = &*(ptr as *mut InstanceStruct<T>);
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let wrap: gst_base::BaseSink = from_glib_borrow(ptr);
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let wrap: T = from_glib_borrow(ptr as *mut InstanceStruct<T>);
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let imp = &*element.imp;
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panic_to_error!(&wrap, &element.panicked, false, {
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@ -25,51 +25,47 @@ use gst_base::prelude::*;
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use object::*;
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use element::*;
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pub trait BaseSrcImpl<T: ObjectType>
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pub trait BaseSrcImpl<T: BaseSrc>
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: mopa::Any + ObjectImpl<T> + ElementImpl<T> + Send + Sync + 'static {
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fn start(&self, _element: &gst_base::BaseSrc) -> bool {
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fn start(&self, _element: &T) -> bool {
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true
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}
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fn stop(&self, _element: &gst_base::BaseSrc) -> bool {
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fn stop(&self, _element: &T) -> bool {
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true
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}
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fn is_seekable(&self, _element: &gst_base::BaseSrc) -> bool {
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fn is_seekable(&self, _element: &T) -> bool {
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false
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}
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fn get_size(&self, _element: &gst_base::BaseSrc) -> Option<u64> {
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fn get_size(&self, _element: &T) -> Option<u64> {
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None
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}
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fn fill(
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&self,
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element: &gst_base::BaseSrc,
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element: &T,
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offset: u64,
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length: u32,
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buffer: &mut gst::BufferRef,
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) -> gst::FlowReturn;
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fn do_seek(&self, element: &gst_base::BaseSrc, segment: &mut gst::Segment) -> bool {
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fn do_seek(&self, element: &T, segment: &mut gst::Segment) -> bool {
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element.parent_do_seek(segment)
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}
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fn query(&self, element: &gst_base::BaseSrc, query: &mut gst::QueryRef) -> bool {
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fn query(&self, element: &T, query: &mut gst::QueryRef) -> bool {
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element.parent_query(query)
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}
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fn event(&self, element: &gst_base::BaseSrc, event: &gst::Event) -> bool {
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fn event(&self, element: &T, event: &gst::Event) -> bool {
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element.parent_event(event)
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}
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}
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mopafy_object_impl!(BaseSrcImpl);
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mopafy_object_impl!(BaseSrc, BaseSrcImpl);
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pub unsafe trait BaseSrc: IsA<gst_base::BaseSrc> {
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pub unsafe trait BaseSrc
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: IsA<gst::Element> + IsA<gst_base::BaseSrc> + ObjectType {
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fn parent_do_seek(&self, segment: &mut gst::Segment) -> bool {
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unsafe {
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// Our class
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let klass = *(self.to_glib_none().0 as *const glib_ffi::gpointer);
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// The parent class, RsElement or any other first-level Rust implementation
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let parent_klass = gobject_ffi::g_type_class_peek_parent(klass);
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// The actual parent class as defined in C
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let parent_klass = &*(gobject_ffi::g_type_class_peek_parent(parent_klass) as
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*const gst_base_ffi::GstBaseSrcClass);
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parent_klass
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let klass = self.get_class();
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let parent_klass = (*klass).get_parent_class() as *const gst_base_ffi::GstBaseSrcClass;
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(*parent_klass)
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.do_seek
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.map(|f| {
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from_glib(f(self.to_glib_none().0, segment.to_glib_none_mut().0))
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@ -80,14 +76,9 @@ pub unsafe trait BaseSrc: IsA<gst_base::BaseSrc> {
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fn parent_query(&self, query: &mut gst::QueryRef) -> bool {
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unsafe {
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// Our class
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let klass = *(self.to_glib_none().0 as *const glib_ffi::gpointer);
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// The parent class, RsElement or any other first-level Rust implementation
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let parent_klass = gobject_ffi::g_type_class_peek_parent(klass);
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// The actual parent class as defined in C
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let parent_klass = &*(gobject_ffi::g_type_class_peek_parent(parent_klass) as
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*const gst_base_ffi::GstBaseSrcClass);
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parent_klass
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let klass = self.get_class();
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let parent_klass = (*klass).get_parent_class() as *const gst_base_ffi::GstBaseSrcClass;
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(*parent_klass)
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.query
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.map(|f| from_glib(f(self.to_glib_none().0, query.as_mut_ptr())))
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.unwrap_or(false)
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@ -96,14 +87,9 @@ pub unsafe trait BaseSrc: IsA<gst_base::BaseSrc> {
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fn parent_event(&self, event: &gst::Event) -> bool {
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unsafe {
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// Our class
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let klass = *(self.to_glib_none().0 as *const glib_ffi::gpointer);
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// The parent class, RsElement or any other first-level Rust implementation
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let parent_klass = gobject_ffi::g_type_class_peek_parent(klass);
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// The actual parent class as defined in C
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let parent_klass = &*(gobject_ffi::g_type_class_peek_parent(parent_klass) as
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*const gst_base_ffi::GstBaseSrcClass);
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parent_klass
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let klass = self.get_class();
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let parent_klass = (*klass).get_parent_class() as *const gst_base_ffi::GstBaseSrcClass;
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(*parent_klass)
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.event
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.map(|f| {
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from_glib(f(self.to_glib_none().0, event.to_glib_none().0))
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@ -113,9 +99,8 @@ pub unsafe trait BaseSrc: IsA<gst_base::BaseSrc> {
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}
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}
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pub unsafe trait BaseSrcClass<T: ObjectType>
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pub unsafe trait BaseSrcClass<T: BaseSrc>
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where
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T: IsA<gst_base::BaseSrc>,
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T::ImplType: BaseSrcImpl<T>,
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{
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fn override_vfuncs(&mut self) {
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@ -144,7 +129,7 @@ glib_wrapper! {
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}
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// FIXME: This is wrong: it must be a basesrc but also backed by ObjectType<T>
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unsafe impl<T: IsA<gst_base::BaseSrc>> BaseSrc for T {}
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unsafe impl<T: IsA<gst::Element> + IsA<gst_base::BaseSrc> + ObjectType> BaseSrc for T {}
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pub type RsBaseSrcClass = ClassStruct<RsBaseSrc>;
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// FIXME: Boilerplate
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@ -156,30 +141,30 @@ macro_rules! box_base_src_impl(
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($name:ident) => {
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box_element_impl!($name);
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impl<T: ObjectType> BaseSrcImpl<T> for Box<$name<T>> {
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fn start(&self, element: &gst_base::BaseSrc) -> bool {
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impl<T: BaseSrc> BaseSrcImpl<T> for Box<$name<T>> {
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fn start(&self, element: &T) -> bool {
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let imp: &$name<T> = self.as_ref();
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imp.start(element)
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}
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fn stop(&self, element: &gst_base::BaseSrc) -> bool {
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fn stop(&self, element: &T) -> bool {
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let imp: &$name<T> = self.as_ref();
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imp.stop(element)
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}
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fn is_seekable(&self, element: &gst_base::BaseSrc) -> bool {
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fn is_seekable(&self, element: &T) -> bool {
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let imp: &$name<T> = self.as_ref();
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imp.is_seekable(element)
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}
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fn get_size(&self, element: &gst_base::BaseSrc) -> Option<u64> {
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fn get_size(&self, element: &T) -> Option<u64> {
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let imp: &$name<T> = self.as_ref();
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imp.get_size(element)
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}
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fn fill(
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&self,
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element: &gst_base::BaseSrc,
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element: &T,
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offset: u64,
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length: u32,
|
||||
buffer: &mut gst::BufferRef,
|
||||
|
|
@ -188,16 +173,16 @@ macro_rules! box_base_src_impl(
|
|||
imp.fill(element, offset, length, buffer)
|
||||
}
|
||||
|
||||
fn do_seek(&self, element: &gst_base::BaseSrc, segment: &mut gst::Segment) -> bool {
|
||||
fn do_seek(&self, element: &T, segment: &mut gst::Segment) -> bool {
|
||||
let imp: &$name<T> = self.as_ref();
|
||||
imp.do_seek(element, segment)
|
||||
}
|
||||
|
||||
fn query(&self, element: &gst_base::BaseSrc, query: &mut gst::QueryRef) -> bool {
|
||||
fn query(&self, element: &T, query: &mut gst::QueryRef) -> bool {
|
||||
let imp: &$name<T> = self.as_ref();
|
||||
imp.query(element, query)
|
||||
}
|
||||
fn event(&self, element: &gst_base::BaseSrc, event: &gst::Event) -> bool {
|
||||
fn event(&self, element: &T, event: &gst::Event) -> bool {
|
||||
let imp: &$name<T> = self.as_ref();
|
||||
imp.event(element, event)
|
||||
}
|
||||
|
|
@ -220,68 +205,66 @@ impl ObjectType for RsBaseSrc {
|
|||
ElementClass::override_vfuncs(klass);
|
||||
BaseSrcClass::override_vfuncs(klass);
|
||||
}
|
||||
|
||||
object_type_fns!();
|
||||
}
|
||||
|
||||
unsafe extern "C" fn base_src_start<T: ObjectType>(
|
||||
unsafe extern "C" fn base_src_start<T: BaseSrc>(
|
||||
ptr: *mut gst_base_ffi::GstBaseSrc,
|
||||
) -> glib_ffi::gboolean
|
||||
where
|
||||
T: IsA<gst_base::BaseSrc>,
|
||||
T::ImplType: BaseSrcImpl<T>,
|
||||
{
|
||||
callback_guard!();
|
||||
floating_reference_guard!(ptr);
|
||||
let element = &*(ptr as *mut InstanceStruct<T>);
|
||||
let wrap: gst_base::BaseSrc = from_glib_borrow(ptr);
|
||||
let wrap: T = from_glib_borrow(ptr as *mut InstanceStruct<T>);
|
||||
let imp = &*element.imp;
|
||||
|
||||
panic_to_error!(&wrap, &element.panicked, false, { imp.start(&wrap) }).to_glib()
|
||||
}
|
||||
|
||||
unsafe extern "C" fn base_src_stop<T: ObjectType>(
|
||||
unsafe extern "C" fn base_src_stop<T: BaseSrc>(
|
||||
ptr: *mut gst_base_ffi::GstBaseSrc,
|
||||
) -> glib_ffi::gboolean
|
||||
where
|
||||
T: IsA<gst_base::BaseSrc>,
|
||||
T::ImplType: BaseSrcImpl<T>,
|
||||
{
|
||||
callback_guard!();
|
||||
floating_reference_guard!(ptr);
|
||||
let element = &*(ptr as *mut InstanceStruct<T>);
|
||||
let wrap: gst_base::BaseSrc = from_glib_borrow(ptr);
|
||||
let wrap: T = from_glib_borrow(ptr as *mut InstanceStruct<T>);
|
||||
let imp = &*element.imp;
|
||||
|
||||
panic_to_error!(&wrap, &element.panicked, false, { imp.stop(&wrap) }).to_glib()
|
||||
}
|
||||
|
||||
unsafe extern "C" fn base_src_is_seekable<T: ObjectType>(
|
||||
unsafe extern "C" fn base_src_is_seekable<T: BaseSrc>(
|
||||
ptr: *mut gst_base_ffi::GstBaseSrc,
|
||||
) -> glib_ffi::gboolean
|
||||
where
|
||||
T: IsA<gst_base::BaseSrc>,
|
||||
T::ImplType: BaseSrcImpl<T>,
|
||||
{
|
||||
callback_guard!();
|
||||
floating_reference_guard!(ptr);
|
||||
let element = &*(ptr as *mut InstanceStruct<T>);
|
||||
let wrap: gst_base::BaseSrc = from_glib_borrow(ptr);
|
||||
let wrap: T = from_glib_borrow(ptr as *mut InstanceStruct<T>);
|
||||
let imp = &*element.imp;
|
||||
|
||||
panic_to_error!(&wrap, &element.panicked, false, { imp.is_seekable(&wrap) }).to_glib()
|
||||
}
|
||||
|
||||
unsafe extern "C" fn base_src_get_size<T: ObjectType>(
|
||||
unsafe extern "C" fn base_src_get_size<T: BaseSrc>(
|
||||
ptr: *mut gst_base_ffi::GstBaseSrc,
|
||||
size: *mut u64,
|
||||
) -> glib_ffi::gboolean
|
||||
where
|
||||
T: IsA<gst_base::BaseSrc>,
|
||||
T::ImplType: BaseSrcImpl<T>,
|
||||
{
|
||||
callback_guard!();
|
||||
floating_reference_guard!(ptr);
|
||||
let element = &*(ptr as *mut InstanceStruct<T>);
|
||||
let wrap: gst_base::BaseSrc = from_glib_borrow(ptr);
|
||||
let wrap: T = from_glib_borrow(ptr as *mut InstanceStruct<T>);
|
||||
let imp = &*element.imp;
|
||||
|
||||
panic_to_error!(&wrap, &element.panicked, false, {
|
||||
|
|
@ -295,20 +278,19 @@ where
|
|||
}).to_glib()
|
||||
}
|
||||
|
||||
unsafe extern "C" fn base_src_fill<T: ObjectType>(
|
||||
unsafe extern "C" fn base_src_fill<T: BaseSrc>(
|
||||
ptr: *mut gst_base_ffi::GstBaseSrc,
|
||||
offset: u64,
|
||||
length: u32,
|
||||
buffer: *mut gst_ffi::GstBuffer,
|
||||
) -> gst_ffi::GstFlowReturn
|
||||
where
|
||||
T: IsA<gst_base::BaseSrc>,
|
||||
T::ImplType: BaseSrcImpl<T>,
|
||||
{
|
||||
callback_guard!();
|
||||
floating_reference_guard!(ptr);
|
||||
let element = &*(ptr as *mut InstanceStruct<T>);
|
||||
let wrap: gst_base::BaseSrc = from_glib_borrow(ptr);
|
||||
let wrap: T = from_glib_borrow(ptr as *mut InstanceStruct<T>);
|
||||
let imp = &*element.imp;
|
||||
let buffer = gst::BufferRef::from_mut_ptr(buffer);
|
||||
|
||||
|
|
@ -317,18 +299,17 @@ where
|
|||
}).to_glib()
|
||||
}
|
||||
|
||||
unsafe extern "C" fn base_src_do_seek<T: ObjectType>(
|
||||
unsafe extern "C" fn base_src_do_seek<T: BaseSrc>(
|
||||
ptr: *mut gst_base_ffi::GstBaseSrc,
|
||||
segment: *mut gst_ffi::GstSegment,
|
||||
) -> glib_ffi::gboolean
|
||||
where
|
||||
T: IsA<gst_base::BaseSrc>,
|
||||
T::ImplType: BaseSrcImpl<T>,
|
||||
{
|
||||
callback_guard!();
|
||||
floating_reference_guard!(ptr);
|
||||
let element = &*(ptr as *mut InstanceStruct<T>);
|
||||
let wrap: gst_base::BaseSrc = from_glib_borrow(ptr);
|
||||
let wrap: T = from_glib_borrow(ptr as *mut InstanceStruct<T>);
|
||||
let imp = &*element.imp;
|
||||
|
||||
panic_to_error!(&wrap, &element.panicked, false, {
|
||||
|
|
@ -336,36 +317,34 @@ where
|
|||
}).to_glib()
|
||||
}
|
||||
|
||||
unsafe extern "C" fn base_src_query<T: ObjectType>(
|
||||
unsafe extern "C" fn base_src_query<T: BaseSrc>(
|
||||
ptr: *mut gst_base_ffi::GstBaseSrc,
|
||||
query_ptr: *mut gst_ffi::GstQuery,
|
||||
) -> glib_ffi::gboolean
|
||||
where
|
||||
T: IsA<gst_base::BaseSrc>,
|
||||
T::ImplType: BaseSrcImpl<T>,
|
||||
{
|
||||
callback_guard!();
|
||||
floating_reference_guard!(ptr);
|
||||
let element = &*(ptr as *mut InstanceStruct<T>);
|
||||
let wrap: gst_base::BaseSrc = from_glib_borrow(ptr);
|
||||
let wrap: T = from_glib_borrow(ptr as *mut InstanceStruct<T>);
|
||||
let imp = &*element.imp;
|
||||
let query = gst::QueryRef::from_mut_ptr(query_ptr);
|
||||
|
||||
panic_to_error!(&wrap, &element.panicked, false, { imp.query(&wrap, query) }).to_glib()
|
||||
}
|
||||
|
||||
unsafe extern "C" fn base_src_event<T: ObjectType>(
|
||||
unsafe extern "C" fn base_src_event<T: BaseSrc>(
|
||||
ptr: *mut gst_base_ffi::GstBaseSrc,
|
||||
event_ptr: *mut gst_ffi::GstEvent,
|
||||
) -> glib_ffi::gboolean
|
||||
where
|
||||
T: IsA<gst_base::BaseSrc>,
|
||||
T::ImplType: BaseSrcImpl<T>,
|
||||
{
|
||||
callback_guard!();
|
||||
floating_reference_guard!(ptr);
|
||||
let element = &*(ptr as *mut InstanceStruct<T>);
|
||||
let wrap: gst_base::BaseSrc = from_glib_borrow(ptr);
|
||||
let wrap: T = from_glib_borrow(ptr as *mut InstanceStruct<T>);
|
||||
let imp = &*element.imp;
|
||||
|
||||
panic_to_error!(&wrap, &element.panicked, false, {
|
||||
|
|
|
|||
|
|
@ -643,7 +643,7 @@ impl ObjectImpl<RsElement> for Demuxer {}
|
|||
impl ElementImpl<RsElement> for Demuxer {
|
||||
fn change_state(
|
||||
&self,
|
||||
element: &gst::Element,
|
||||
element: &RsElement,
|
||||
transition: gst::StateChange,
|
||||
) -> gst::StateChangeReturn {
|
||||
let mut ret = gst::StateChangeReturn::Success;
|
||||
|
|
|
|||
|
|
@ -21,30 +21,21 @@ use gst::prelude::*;
|
|||
|
||||
use object::*;
|
||||
|
||||
pub trait ElementImpl<T: ObjectType>
|
||||
pub trait ElementImpl<T: Element>
|
||||
: ObjectImpl<T> + mopa::Any + Send + Sync + 'static {
|
||||
fn change_state(
|
||||
&self,
|
||||
element: &gst::Element,
|
||||
transition: gst::StateChange,
|
||||
) -> gst::StateChangeReturn {
|
||||
fn change_state(&self, element: &T, transition: gst::StateChange) -> gst::StateChangeReturn {
|
||||
element.parent_change_state(transition)
|
||||
}
|
||||
}
|
||||
|
||||
mopafy_object_impl!(ElementImpl);
|
||||
mopafy_object_impl!(Element, ElementImpl);
|
||||
|
||||
pub unsafe trait Element: IsA<gst::Element> {
|
||||
pub unsafe trait Element: IsA<gst::Element> + ObjectType {
|
||||
fn parent_change_state(&self, transition: gst::StateChange) -> gst::StateChangeReturn {
|
||||
unsafe {
|
||||
// Our class
|
||||
let klass = *(self.to_glib_none().0 as *const glib_ffi::gpointer);
|
||||
// The parent class, RsElement or any other first-level Rust implementation
|
||||
let parent_klass = gobject_ffi::g_type_class_peek_parent(klass);
|
||||
// The actual parent class as defined in C
|
||||
let parent_klass = &*(gobject_ffi::g_type_class_peek_parent(parent_klass) as
|
||||
*const gst_ffi::GstElementClass);
|
||||
parent_klass
|
||||
let klass = self.get_class();
|
||||
let parent_klass = (*klass).get_parent_class() as *const gst_ffi::GstElementClass;
|
||||
(*parent_klass)
|
||||
.change_state
|
||||
.map(|f| {
|
||||
from_glib(f(self.to_glib_none().0, transition.to_glib()))
|
||||
|
|
@ -54,9 +45,8 @@ pub unsafe trait Element: IsA<gst::Element> {
|
|||
}
|
||||
}
|
||||
|
||||
pub unsafe trait ElementClass<T: ObjectType>
|
||||
pub unsafe trait ElementClass<T: Element>
|
||||
where
|
||||
T: IsA<gst::Element>,
|
||||
T::ImplType: ElementImpl<T>,
|
||||
{
|
||||
fn add_pad_template(&mut self, pad_template: gst::PadTemplate) {
|
||||
|
|
@ -103,17 +93,7 @@ glib_wrapper! {
|
|||
}
|
||||
}
|
||||
|
||||
impl RsElement {
|
||||
pub fn get_impl(&self) -> &ElementImpl<RsElement> {
|
||||
unsafe {
|
||||
let stash = self.to_glib_none();
|
||||
let ptr: *mut InstanceStruct<RsElement> = stash.0;
|
||||
(*ptr).get_impl().as_ref()
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
unsafe impl<T: IsA<gst::Element>> Element for T {}
|
||||
unsafe impl<T: IsA<gst::Element> + ObjectType> Element for T {}
|
||||
pub type RsElementClass = ClassStruct<RsElement>;
|
||||
|
||||
// FIXME: Boilerplate
|
||||
|
|
@ -124,10 +104,10 @@ macro_rules! box_element_impl(
|
|||
($name:ident) => {
|
||||
box_object_impl!($name);
|
||||
|
||||
impl<T: ObjectType> ElementImpl<T> for Box<$name<T>> {
|
||||
impl<T: Element> ElementImpl<T> for Box<$name<T>> {
|
||||
fn change_state(
|
||||
&self,
|
||||
element: &gst::Element,
|
||||
element: &T,
|
||||
transition: gst::StateChange,
|
||||
) -> gst::StateChangeReturn {
|
||||
let imp: &$name<T> = self.as_ref();
|
||||
|
|
@ -152,20 +132,21 @@ impl ObjectType for RsElement {
|
|||
fn class_init(klass: &mut RsElementClass) {
|
||||
klass.override_vfuncs();
|
||||
}
|
||||
|
||||
object_type_fns!();
|
||||
}
|
||||
|
||||
unsafe extern "C" fn element_change_state<T: ObjectType>(
|
||||
unsafe extern "C" fn element_change_state<T: Element>(
|
||||
ptr: *mut gst_ffi::GstElement,
|
||||
transition: gst_ffi::GstStateChange,
|
||||
) -> gst_ffi::GstStateChangeReturn
|
||||
where
|
||||
T: IsA<gst::Element>,
|
||||
T::ImplType: ElementImpl<T>,
|
||||
{
|
||||
callback_guard!();
|
||||
floating_reference_guard!(ptr);
|
||||
let element = &*(ptr as *mut InstanceStruct<T>);
|
||||
let wrap: gst::Element = from_glib_borrow(ptr);
|
||||
let wrap: T = from_glib_borrow(ptr as *mut InstanceStruct<T>);
|
||||
let imp = &*element.imp;
|
||||
|
||||
panic_to_error!(&wrap, &element.panicked, gst::StateChangeReturn::Failure, {
|
||||
|
|
|
|||
|
|
@ -12,7 +12,6 @@ extern crate gstreamer_base_sys as gst_base_ffi;
|
|||
#[macro_use]
|
||||
extern crate lazy_static;
|
||||
extern crate libc;
|
||||
#[macro_use]
|
||||
extern crate mopa;
|
||||
extern crate url;
|
||||
pub extern crate glib_sys as glib_ffi;
|
||||
|
|
@ -62,8 +61,8 @@ impl Drop for FloatingReferenceGuard {
|
|||
|
||||
// mopafy! macro to work with generic traits over T: ObjectType
|
||||
macro_rules! mopafy_object_impl {
|
||||
($trait:ident) => {
|
||||
impl<T: ObjectType> $trait<T> {
|
||||
($bound:ident, $trait:ident) => {
|
||||
impl<T: $bound> $trait<T> {
|
||||
#[inline]
|
||||
pub fn downcast_ref<U: $trait<T>>(&self) -> Option<&U> {
|
||||
if self.is::<U>() {
|
||||
|
|
|
|||
|
|
@ -84,8 +84,27 @@ where
|
|||
fn get_property(_obj: &Self, _id: u32) -> Result<glib::Value, ()> {
|
||||
unimplemented!()
|
||||
}
|
||||
|
||||
unsafe fn get_instance(&self) -> *mut InstanceStruct<Self>;
|
||||
|
||||
fn get_impl(&self) -> &Self::ImplType {
|
||||
unsafe { (*self.get_instance()).get_impl() }
|
||||
}
|
||||
|
||||
unsafe fn get_class(&self) -> *const ClassStruct<Self> {
|
||||
(*self.get_instance()).get_class()
|
||||
}
|
||||
}
|
||||
|
||||
#[macro_export]
|
||||
macro_rules! object_type_fns(
|
||||
() => {
|
||||
unsafe fn get_instance(&self) -> *mut InstanceStruct<Self> {
|
||||
self.to_glib_none().0
|
||||
}
|
||||
}
|
||||
);
|
||||
|
||||
#[repr(C)]
|
||||
pub struct InstanceStruct<T: ObjectType> {
|
||||
pub parent: T::GlibType,
|
||||
|
|
@ -97,15 +116,26 @@ impl<T: ObjectType> InstanceStruct<T> {
|
|||
pub fn get_impl(&self) -> &T::ImplType {
|
||||
unsafe { &*self.imp }
|
||||
}
|
||||
|
||||
pub unsafe fn get_class(&self) -> *const ClassStruct<T> {
|
||||
*(self as *const _ as *const *const ClassStruct<T>)
|
||||
}
|
||||
}
|
||||
|
||||
#[repr(C)]
|
||||
pub struct ClassStruct<T: ObjectType> {
|
||||
pub parent: T::GlibClassType,
|
||||
pub imp_static: *const Box<ImplTypeStatic<T>>,
|
||||
pub parent_class: *const T::GlibClassType,
|
||||
pub interfaces_static: *const Vec<(glib_ffi::GType, glib_ffi::gpointer)>,
|
||||
}
|
||||
|
||||
impl<T: ObjectType> ClassStruct<T> {
|
||||
pub unsafe fn get_parent_class(&self) -> *const T::GlibClassType {
|
||||
self.parent_class
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: ObjectType> ClassStruct<T> {
|
||||
pub fn get_interface_static(&self, type_: glib_ffi::GType) -> glib_ffi::gpointer {
|
||||
unsafe {
|
||||
|
|
@ -346,7 +376,13 @@ unsafe extern "C" fn class_init<T: ObjectType>(
|
|||
gobject_klass.get_property = Some(get_property::<T>);
|
||||
}
|
||||
|
||||
T::class_init(&mut *(klass as *mut ClassStruct<T>));
|
||||
{
|
||||
let klass = &mut *(klass as *mut ClassStruct<T>);
|
||||
klass.parent_class = gobject_ffi::g_type_class_peek_parent(
|
||||
klass as *mut _ as glib_ffi::gpointer,
|
||||
) as *const T::GlibClassType;
|
||||
T::class_init(klass);
|
||||
}
|
||||
}
|
||||
|
||||
unsafe extern "C" fn finalize<T: ObjectType>(obj: *mut gobject_ffi::GObject) {
|
||||
|
|
|
|||
|
|
@ -158,10 +158,8 @@ impl ObjectImpl<RsBaseSink> for Sink {
|
|||
impl ElementImpl<RsBaseSink> for Sink {}
|
||||
|
||||
impl BaseSinkImpl<RsBaseSink> for Sink {
|
||||
fn start(&self, element: &gst_base::BaseSink) -> bool {
|
||||
let sink = element.clone().downcast::<RsBaseSink>().unwrap();
|
||||
|
||||
gst_debug!(self.cat, obj: &sink, "Starting");
|
||||
fn start(&self, sink: &RsBaseSink) -> bool {
|
||||
gst_debug!(self.cat, obj: sink, "Starting");
|
||||
|
||||
// Don't keep the URI locked while we call start later
|
||||
let uri = match *self.uri.lock().unwrap() {
|
||||
|
|
@ -170,62 +168,60 @@ impl BaseSinkImpl<RsBaseSink> for Sink {
|
|||
uri.clone()
|
||||
}
|
||||
(None, _) => {
|
||||
gst_error!(self.cat, obj: &sink, "No URI given");
|
||||
error_msg!(gst::ResourceError::OpenRead, ["No URI given"]).post(&sink);
|
||||
gst_error!(self.cat, obj: sink, "No URI given");
|
||||
error_msg!(gst::ResourceError::OpenRead, ["No URI given"]).post(sink);
|
||||
return false;
|
||||
}
|
||||
};
|
||||
|
||||
let sink_impl = &mut self.imp.lock().unwrap();
|
||||
match sink_impl.start(&sink, uri) {
|
||||
match sink_impl.start(sink, uri) {
|
||||
Ok(..) => {
|
||||
gst_trace!(self.cat, obj: &sink, "Started successfully");
|
||||
gst_trace!(self.cat, obj: sink, "Started successfully");
|
||||
true
|
||||
}
|
||||
Err(ref msg) => {
|
||||
gst_error!(self.cat, obj: &sink, "Failed to start: {:?}", msg);
|
||||
gst_error!(self.cat, obj: sink, "Failed to start: {:?}", msg);
|
||||
|
||||
self.uri.lock().unwrap().1 = false;
|
||||
msg.post(&sink);
|
||||
msg.post(sink);
|
||||
false
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn stop(&self, element: &gst_base::BaseSink) -> bool {
|
||||
let sink = element.clone().downcast::<RsBaseSink>().unwrap();
|
||||
fn stop(&self, sink: &RsBaseSink) -> bool {
|
||||
let sink_impl = &mut self.imp.lock().unwrap();
|
||||
|
||||
gst_debug!(self.cat, obj: &sink, "Stopping");
|
||||
gst_debug!(self.cat, obj: sink, "Stopping");
|
||||
|
||||
match sink_impl.stop(&sink) {
|
||||
match sink_impl.stop(sink) {
|
||||
Ok(..) => {
|
||||
gst_trace!(self.cat, obj: &sink, "Stopped successfully");
|
||||
gst_trace!(self.cat, obj: sink, "Stopped successfully");
|
||||
self.uri.lock().unwrap().1 = false;
|
||||
true
|
||||
}
|
||||
Err(ref msg) => {
|
||||
gst_error!(self.cat, obj: &sink, "Failed to stop: {:?}", msg);
|
||||
gst_error!(self.cat, obj: sink, "Failed to stop: {:?}", msg);
|
||||
|
||||
msg.post(&sink);
|
||||
msg.post(sink);
|
||||
false
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn render(&self, element: &gst_base::BaseSink, buffer: &gst::BufferRef) -> gst::FlowReturn {
|
||||
let sink = element.clone().downcast::<RsBaseSink>().unwrap();
|
||||
fn render(&self, sink: &RsBaseSink, buffer: &gst::BufferRef) -> gst::FlowReturn {
|
||||
let sink_impl = &mut self.imp.lock().unwrap();
|
||||
|
||||
gst_trace!(self.cat, obj: &sink, "Rendering buffer {:?}", buffer,);
|
||||
gst_trace!(self.cat, obj: sink, "Rendering buffer {:?}", buffer,);
|
||||
|
||||
match sink_impl.render(&sink, buffer) {
|
||||
match sink_impl.render(sink, buffer) {
|
||||
Ok(()) => gst::FlowReturn::Ok,
|
||||
Err(flow_error) => {
|
||||
gst_error!(self.cat, obj: &sink, "Failed to render: {:?}", flow_error);
|
||||
gst_error!(self.cat, obj: sink, "Failed to render: {:?}", flow_error);
|
||||
match flow_error {
|
||||
FlowError::NotNegotiated(ref msg) | FlowError::Error(ref msg) => {
|
||||
msg.post(&sink);
|
||||
msg.post(sink);
|
||||
}
|
||||
_ => (),
|
||||
}
|
||||
|
|
|
|||
|
|
@ -172,10 +172,8 @@ impl ObjectImpl<RsBaseSrc> for Source {
|
|||
impl ElementImpl<RsBaseSrc> for Source {}
|
||||
|
||||
impl BaseSrcImpl<RsBaseSrc> for Source {
|
||||
fn start(&self, element: &gst_base::BaseSrc) -> bool {
|
||||
let src = element.clone().downcast::<RsBaseSrc>().unwrap();
|
||||
|
||||
gst_debug!(self.cat, obj: &src, "Starting");
|
||||
fn start(&self, src: &RsBaseSrc) -> bool {
|
||||
gst_debug!(self.cat, obj: src, "Starting");
|
||||
|
||||
// Don't keep the URI locked while we call start later
|
||||
let uri = match *self.uri.lock().unwrap() {
|
||||
|
|
@ -184,50 +182,49 @@ impl BaseSrcImpl<RsBaseSrc> for Source {
|
|||
uri.clone()
|
||||
}
|
||||
(None, _) => {
|
||||
gst_error!(self.cat, obj: &src, "No URI given");
|
||||
error_msg!(gst::ResourceError::OpenRead, ["No URI given"]).post(&src);
|
||||
gst_error!(self.cat, obj: src, "No URI given");
|
||||
error_msg!(gst::ResourceError::OpenRead, ["No URI given"]).post(src);
|
||||
return false;
|
||||
}
|
||||
};
|
||||
|
||||
let source_impl = &mut self.imp.lock().unwrap();
|
||||
match source_impl.start(&src, uri) {
|
||||
match source_impl.start(src, uri) {
|
||||
Ok(..) => {
|
||||
gst_trace!(self.cat, obj: &src, "Started successfully");
|
||||
gst_trace!(self.cat, obj: src, "Started successfully");
|
||||
true
|
||||
}
|
||||
Err(ref msg) => {
|
||||
gst_error!(self.cat, obj: &src, "Failed to start: {:?}", msg);
|
||||
gst_error!(self.cat, obj: src, "Failed to start: {:?}", msg);
|
||||
|
||||
self.uri.lock().unwrap().1 = false;
|
||||
msg.post(&src);
|
||||
msg.post(src);
|
||||
false
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn stop(&self, element: &gst_base::BaseSrc) -> bool {
|
||||
let src = element.clone().downcast::<RsBaseSrc>().unwrap();
|
||||
fn stop(&self, src: &RsBaseSrc) -> bool {
|
||||
let source_impl = &mut self.imp.lock().unwrap();
|
||||
|
||||
gst_debug!(self.cat, obj: &src, "Stopping");
|
||||
gst_debug!(self.cat, obj: src, "Stopping");
|
||||
|
||||
match source_impl.stop(&src) {
|
||||
match source_impl.stop(src) {
|
||||
Ok(..) => {
|
||||
gst_trace!(self.cat, obj: &src, "Stopped successfully");
|
||||
gst_trace!(self.cat, obj: src, "Stopped successfully");
|
||||
self.uri.lock().unwrap().1 = false;
|
||||
true
|
||||
}
|
||||
Err(ref msg) => {
|
||||
gst_error!(self.cat, obj: &src, "Failed to stop: {:?}", msg);
|
||||
gst_error!(self.cat, obj: src, "Failed to stop: {:?}", msg);
|
||||
|
||||
msg.post(&src);
|
||||
msg.post(src);
|
||||
false
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn query(&self, element: &gst_base::BaseSrc, query: &mut gst::QueryRef) -> bool {
|
||||
fn query(&self, src: &RsBaseSrc, query: &mut gst::QueryRef) -> bool {
|
||||
use gst::QueryView;
|
||||
|
||||
match query.view_mut() {
|
||||
|
|
@ -239,35 +236,34 @@ impl BaseSrcImpl<RsBaseSrc> for Source {
|
|||
_ => (),
|
||||
}
|
||||
|
||||
element.parent_query(query)
|
||||
src.parent_query(query)
|
||||
}
|
||||
|
||||
fn fill(
|
||||
&self,
|
||||
element: &gst_base::BaseSrc,
|
||||
src: &RsBaseSrc,
|
||||
offset: u64,
|
||||
length: u32,
|
||||
buffer: &mut gst::BufferRef,
|
||||
) -> gst::FlowReturn {
|
||||
let src = element.clone().downcast::<RsBaseSrc>().unwrap();
|
||||
let source_impl = &mut self.imp.lock().unwrap();
|
||||
|
||||
gst_trace!(
|
||||
self.cat,
|
||||
obj: &src,
|
||||
obj: src,
|
||||
"Filling buffer {:?} with offset {} and length {}",
|
||||
buffer,
|
||||
offset,
|
||||
length
|
||||
);
|
||||
|
||||
match source_impl.fill(&src, offset, length, buffer) {
|
||||
match source_impl.fill(src, offset, length, buffer) {
|
||||
Ok(()) => gst::FlowReturn::Ok,
|
||||
Err(flow_error) => {
|
||||
gst_error!(self.cat, obj: &src, "Failed to fill: {:?}", flow_error);
|
||||
gst_error!(self.cat, obj: src, "Failed to fill: {:?}", flow_error);
|
||||
match flow_error {
|
||||
FlowError::NotNegotiated(ref msg) | FlowError::Error(ref msg) => {
|
||||
msg.post(&src);
|
||||
msg.post(src);
|
||||
}
|
||||
_ => (),
|
||||
}
|
||||
|
|
@ -276,8 +272,7 @@ impl BaseSrcImpl<RsBaseSrc> for Source {
|
|||
}
|
||||
}
|
||||
|
||||
fn do_seek(&self, element: &gst_base::BaseSrc, segment: &mut gst::Segment) -> bool {
|
||||
let src = element.clone().downcast::<RsBaseSrc>().unwrap();
|
||||
fn do_seek(&self, src: &RsBaseSrc, segment: &mut gst::Segment) -> bool {
|
||||
let source_impl = &mut self.imp.lock().unwrap();
|
||||
|
||||
let start = segment.get_start();
|
||||
|
|
@ -286,28 +281,26 @@ impl BaseSrcImpl<RsBaseSrc> for Source {
|
|||
stop @ _ => Some(stop),
|
||||
};
|
||||
|
||||
gst_debug!(self.cat, obj: &src, "Seeking to {:?}-{:?}", start, stop);
|
||||
gst_debug!(self.cat, obj: src, "Seeking to {:?}-{:?}", start, stop);
|
||||
|
||||
match source_impl.seek(&src, start, stop) {
|
||||
match source_impl.seek(src, start, stop) {
|
||||
Ok(..) => true,
|
||||
Err(ref msg) => {
|
||||
gst_error!(self.cat, obj: &src, "Failed to seek {:?}", msg);
|
||||
msg.post(&src);
|
||||
gst_error!(self.cat, obj: src, "Failed to seek {:?}", msg);
|
||||
msg.post(src);
|
||||
false
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn is_seekable(&self, element: &gst_base::BaseSrc) -> bool {
|
||||
let src = element.clone().downcast::<RsBaseSrc>().unwrap();
|
||||
fn is_seekable(&self, src: &RsBaseSrc) -> bool {
|
||||
let source_impl = &self.imp.lock().unwrap();
|
||||
source_impl.is_seekable(&src)
|
||||
source_impl.is_seekable(src)
|
||||
}
|
||||
|
||||
fn get_size(&self, element: &gst_base::BaseSrc) -> Option<u64> {
|
||||
let src = element.clone().downcast::<RsBaseSrc>().unwrap();
|
||||
fn get_size(&self, src: &RsBaseSrc) -> Option<u64> {
|
||||
let source_impl = &self.imp.lock().unwrap();
|
||||
source_impl.get_size(&src)
|
||||
source_impl.get_size(src)
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue