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Fix compilation with GLib subclassing changes

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This commit is contained in:
Sebastian Dröge 2020-11-14 16:59:43 +02:00
parent fec4e12410
commit 1d53b66858
5 changed files with 231 additions and 183 deletions
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12
examples/src/bin/rtsp-server-subclass.rs
View file

@ -98,6 +98,7 @@ mod media_factory {
// up the class data
impl ObjectSubclass for Factory {
const NAME: &'static str = "RsRTSPMediaFactory";
type Type = super::Factory;
type ParentType = gst_rtsp_server::RTSPMediaFactory;
type Instance = gst::subclass::ElementInstanceStruct<Self>;
type Class = subclass::simple::ClassStruct<Self>;
@ -114,12 +115,8 @@ mod media_factory {
// Implementation of glib::Object virtual methods
impl ObjectImpl for Factory {
fn constructed(&self, obj: &glib::Object) {
self.parent_constructed(obj);
let factory = obj
.downcast_ref::<gst_rtsp_server::RTSPMediaFactory>()
.unwrap();
fn constructed(&self, factory: &Self::Type) {
self.parent_constructed(factory);
// All media created by this factory are our custom media type. This would
// not require a media factory subclass and can also be called on the normal
@ -199,6 +196,7 @@ mod media {
// up the class data
impl ObjectSubclass for Media {
const NAME: &'static str = "RsRTSPMedia";
type Type = super::Media;
type ParentType = gst_rtsp_server::RTSPMedia;
type Instance = gst::subclass::ElementInstanceStruct<Self>;
type Class = subclass::simple::ClassStruct<Self>;
@ -266,6 +264,7 @@ mod server {
// up the class data
impl ObjectSubclass for Server {
const NAME: &'static str = "RsRTSPServer";
type Type = super::Server;
type ParentType = gst_rtsp_server::RTSPServer;
type Instance = gst::subclass::ElementInstanceStruct<Self>;
type Class = subclass::simple::ClassStruct<Self>;
@ -353,6 +352,7 @@ mod client {
// up the class data
impl ObjectSubclass for Client {
const NAME: &'static str = "RsRTSPClient";
type Type = super::Client;
type ParentType = gst_rtsp_server::RTSPClient;
type Instance = gst::subclass::ElementInstanceStruct<Self>;
type Class = subclass::simple::ClassStruct<Self>;

3
examples/src/bin/subclass.rs
View file

@ -62,6 +62,7 @@ mod fir_filter {
// up the class data
impl ObjectSubclass for FirFilter {
const NAME: &'static str = "RsFirFilter";
type Type = super::FirFilter;
type ParentType = gst_base::BaseTransform;
type Instance = gst::subclass::ElementInstanceStruct<Self>;
type Class = subclass::simple::ClassStruct<Self>;
@ -88,7 +89,7 @@ mod fir_filter {
// will automatically instantiate pads for them.
//
// Our element here can only handle F32 mono audio.
fn class_init(klass: &mut subclass::simple::ClassStruct<Self>) {
fn class_init(klass: &mut Self::Class) {
// Set the element specific metadata. This information is what
// is visible from gst-inspect-1.0 and can also be programatically
// retrieved from the gst::Registry after initial registration

4
gstreamer/src/subclass/clock.rs
View file

@ -81,7 +81,7 @@ pub trait ClockImplExt {
fn wake_id(&self, id: &ClockId)
where
Self: ObjectSubclass,
<Self as ObjectSubclass>::ParentType: IsA<Clock>;
<Self as ObjectSubclass>::Type: IsA<Clock>;
}
impl<T: ClockImpl> ClockImplExt for T {
@ -199,7 +199,7 @@ impl<T: ClockImpl> ClockImplExt for T {
fn wake_id(&self, id: &ClockId)
where
Self: ObjectSubclass,
<Self as ObjectSubclass>::ParentType: IsA<Clock>,
<Self as ObjectSubclass>::Type: IsA<Clock>,
{
let clock = self.get_instance();

315
gstreamer/src/subclass/element.rs
View file

@ -549,145 +549,175 @@ mod tests {
use glib::subclass;
use std::sync::atomic;
struct TestElement {
srcpad: ::Pad,
sinkpad: ::Pad,
n_buffers: atomic::AtomicU32,
reached_playing: atomic::AtomicBool,
pub mod imp {
use super::*;
pub struct TestElement {
pub(super) srcpad: ::Pad,
pub(super) sinkpad: ::Pad,
pub(super) n_buffers: atomic::AtomicU32,
pub(super) reached_playing: atomic::AtomicBool,
}
impl TestElement {
fn sink_chain(
&self,
_pad: &::Pad,
_element: &::Element,
buffer: ::Buffer,
) -> Result<::FlowSuccess, ::FlowError> {
self.n_buffers.fetch_add(1, atomic::Ordering::SeqCst);
self.srcpad.push(buffer)
}
fn sink_event(&self, _pad: &::Pad, _element: &::Element, event: ::Event) -> bool {
self.srcpad.push_event(event)
}
fn sink_query(
&self,
_pad: &::Pad,
_element: &::Element,
query: &mut ::QueryRef,
) -> bool {
self.srcpad.peer_query(query)
}
fn src_event(&self, _pad: &::Pad, _element: &::Element, event: ::Event) -> bool {
self.sinkpad.push_event(event)
}
fn src_query(
&self,
_pad: &::Pad,
_element: &::Element,
query: &mut ::QueryRef,
) -> bool {
self.sinkpad.peer_query(query)
}
}
impl ObjectSubclass for TestElement {
const NAME: &'static str = "TestElement";
type Type = super::TestElement;
type ParentType = ::Element;
type Instance = ::subclass::ElementInstanceStruct<Self>;
type Class = subclass::simple::ClassStruct<Self>;
glib_object_subclass!();
fn with_class(klass: &subclass::simple::ClassStruct<Self>) -> Self {
let templ = klass.get_pad_template("sink").unwrap();
let sinkpad = ::Pad::builder_with_template(&templ, Some("sink"))
.chain_function(|pad, parent, buffer| {
TestElement::catch_panic_pad_function(
parent,
|| Err(::FlowError::Error),
|identity, element| identity.sink_chain(pad, element, buffer),
)
})
.event_function(|pad, parent, event| {
TestElement::catch_panic_pad_function(
parent,
|| false,
|identity, element| identity.sink_event(pad, element, event),
)
})
.query_function(|pad, parent, query| {
TestElement::catch_panic_pad_function(
parent,
|| false,
|identity, element| identity.sink_query(pad, element, query),
)
})
.build();
let templ = klass.get_pad_template("src").unwrap();
let srcpad = ::Pad::builder_with_template(&templ, Some("src"))
.event_function(|pad, parent, event| {
TestElement::catch_panic_pad_function(
parent,
|| false,
|identity, element| identity.src_event(pad, element, event),
)
})
.query_function(|pad, parent, query| {
TestElement::catch_panic_pad_function(
parent,
|| false,
|identity, element| identity.src_query(pad, element, query),
)
})
.build();
Self {
n_buffers: atomic::AtomicU32::new(0),
reached_playing: atomic::AtomicBool::new(false),
srcpad,
sinkpad,
}
}
fn class_init(klass: &mut subclass::simple::ClassStruct<Self>) {
klass.set_metadata(
"Test Element",
"Generic",
"Does nothing",
"Sebastian Dröge <sebastian@centricular.com>",
);
let caps = ::Caps::new_any();
let src_pad_template =
::PadTemplate::new("src", ::PadDirection::Src, ::PadPresence::Always, &caps)
.unwrap();
klass.add_pad_template(src_pad_template);
let sink_pad_template =
::PadTemplate::new("sink", ::PadDirection::Sink, ::PadPresence::Always, &caps)
.unwrap();
klass.add_pad_template(sink_pad_template);
}
}
impl ObjectImpl for TestElement {
fn constructed(&self, element: &Self::Type) {
self.parent_constructed(element);
element.add_pad(&self.sinkpad).unwrap();
element.add_pad(&self.srcpad).unwrap();
}
}
impl ElementImpl for TestElement {
fn change_state(
&self,
element: &::Element,
transition: ::StateChange,
) -> Result<::StateChangeSuccess, ::StateChangeError> {
let res = self.parent_change_state(element, transition)?;
if transition == ::StateChange::PausedToPlaying {
self.reached_playing.store(true, atomic::Ordering::SeqCst);
}
Ok(res)
}
}
}
glib_wrapper! {
pub struct TestElement(ObjectSubclass<imp::TestElement>) @extends ::Element, ::Object;
}
unsafe impl Send for TestElement {}
unsafe impl Sync for TestElement {}
impl TestElement {
fn sink_chain(
&self,
_pad: &::Pad,
_element: &::Element,
buffer: ::Buffer,
) -> Result<::FlowSuccess, ::FlowError> {
self.n_buffers.fetch_add(1, atomic::Ordering::SeqCst);
self.srcpad.push(buffer)
}
fn sink_event(&self, _pad: &::Pad, _element: &::Element, event: ::Event) -> bool {
self.srcpad.push_event(event)
}
fn sink_query(&self, _pad: &::Pad, _element: &::Element, query: &mut ::QueryRef) -> bool {
self.srcpad.peer_query(query)
}
fn src_event(&self, _pad: &::Pad, _element: &::Element, event: ::Event) -> bool {
self.sinkpad.push_event(event)
}
fn src_query(&self, _pad: &::Pad, _element: &::Element, query: &mut ::QueryRef) -> bool {
self.sinkpad.peer_query(query)
}
}
impl ObjectSubclass for TestElement {
const NAME: &'static str = "TestElement";
type ParentType = ::Element;
type Instance = ::subclass::ElementInstanceStruct<Self>;
type Class = subclass::simple::ClassStruct<Self>;
glib_object_subclass!();
fn with_class(klass: &subclass::simple::ClassStruct<Self>) -> Self {
let templ = klass.get_pad_template("sink").unwrap();
let sinkpad = ::Pad::builder_with_template(&templ, Some("sink"))
.chain_function(|pad, parent, buffer| {
TestElement::catch_panic_pad_function(
parent,
|| Err(::FlowError::Error),
|identity, element| identity.sink_chain(pad, element, buffer),
)
})
.event_function(|pad, parent, event| {
TestElement::catch_panic_pad_function(
parent,
|| false,
|identity, element| identity.sink_event(pad, element, event),
)
})
.query_function(|pad, parent, query| {
TestElement::catch_panic_pad_function(
parent,
|| false,
|identity, element| identity.sink_query(pad, element, query),
)
})
.build();
let templ = klass.get_pad_template("src").unwrap();
let srcpad = ::Pad::builder_with_template(&templ, Some("src"))
.event_function(|pad, parent, event| {
TestElement::catch_panic_pad_function(
parent,
|| false,
|identity, element| identity.src_event(pad, element, event),
)
})
.query_function(|pad, parent, query| {
TestElement::catch_panic_pad_function(
parent,
|| false,
|identity, element| identity.src_query(pad, element, query),
)
})
.build();
Self {
n_buffers: atomic::AtomicU32::new(0),
reached_playing: atomic::AtomicBool::new(false),
srcpad,
sinkpad,
}
}
fn class_init(klass: &mut subclass::simple::ClassStruct<Self>) {
klass.set_metadata(
"Test Element",
"Generic",
"Does nothing",
"Sebastian Dröge <sebastian@centricular.com>",
);
let caps = ::Caps::new_any();
let src_pad_template =
::PadTemplate::new("src", ::PadDirection::Src, ::PadPresence::Always, &caps)
.unwrap();
klass.add_pad_template(src_pad_template);
let sink_pad_template =
::PadTemplate::new("sink", ::PadDirection::Sink, ::PadPresence::Always, &caps)
.unwrap();
klass.add_pad_template(sink_pad_template);
}
}
impl ObjectImpl for TestElement {
fn constructed(&self, obj: &glib::Object) {
self.parent_constructed(obj);
let element = obj.downcast_ref::<::Element>().unwrap();
element.add_pad(&self.sinkpad).unwrap();
element.add_pad(&self.srcpad).unwrap();
}
}
impl ElementImpl for TestElement {
fn change_state(
&self,
element: &::Element,
transition: ::StateChange,
) -> Result<::StateChangeSuccess, ::StateChangeError> {
let res = self.parent_change_state(element, transition)?;
if transition == ::StateChange::PausedToPlaying {
self.reached_playing.store(true, atomic::Ordering::SeqCst);
}
Ok(res)
pub fn new(name: Option<&str>) -> Self {
glib::Object::new(TestElement::static_type(), &[("name", &name)])
.unwrap()
.downcast::<Self>()
.unwrap()
}
}
@ -695,10 +725,7 @@ mod tests {
fn test_element_subclass() {
::init().unwrap();
let element = glib::Object::new(TestElement::get_type(), &[("name", &"test")])
.unwrap()
.downcast::<::Element>()
.unwrap();
let element = TestElement::new(Some("test"));
assert_eq!(element.get_name(), "test");
@ -713,8 +740,10 @@ mod tests {
src.set_property("num-buffers", &100i32).unwrap();
pipeline.add_many(&[&src, &element, &sink]).unwrap();
::Element::link_many(&[&src, &element, &sink]).unwrap();
pipeline
.add_many(&[&src, &element.upcast_ref(), &sink])
.unwrap();
::Element::link_many(&[&src, &element.upcast_ref(), &sink]).unwrap();
pipeline.set_state(::State::Playing).unwrap();
let bus = pipeline.get_bus().unwrap();
@ -724,7 +753,7 @@ mod tests {
pipeline.set_state(::State::Null).unwrap();
let imp = TestElement::from_instance(&element);
let imp = imp::TestElement::from_instance(&element);
assert_eq!(imp.n_buffers.load(atomic::Ordering::SeqCst), 100);
assert_eq!(imp.reached_playing.load(atomic::Ordering::SeqCst), true);
}

80
gstreamer/src/subclass/pad.rs
View file

@ -93,38 +93,62 @@ mod tests {
use glib::subclass;
use std::sync::atomic;
struct TestPad {
linked: atomic::AtomicBool,
unlinked: atomic::AtomicBool,
}
pub mod imp {
use super::*;
impl ObjectSubclass for TestPad {
const NAME: &'static str = "TestPad";
type ParentType = ::Pad;
type Instance = subclass::simple::InstanceStruct<Self>;
type Class = subclass::simple::ClassStruct<Self>;
pub struct TestPad {
pub(super) linked: atomic::AtomicBool,
pub(super) unlinked: atomic::AtomicBool,
}
glib_object_subclass!();
impl ObjectSubclass for TestPad {
const NAME: &'static str = "TestPad";
type Type = super::TestPad;
type ParentType = ::Pad;
type Instance = subclass::simple::InstanceStruct<Self>;
type Class = subclass::simple::ClassStruct<Self>;
fn new() -> Self {
Self {
linked: atomic::AtomicBool::new(false),
unlinked: atomic::AtomicBool::new(false),
glib_object_subclass!();
fn new() -> Self {
Self {
linked: atomic::AtomicBool::new(false),
unlinked: atomic::AtomicBool::new(false),
}
}
}
impl ObjectImpl for TestPad {}
impl PadImpl for TestPad {
fn linked(&self, pad: &Pad, peer: &Pad) {
self.linked.store(true, atomic::Ordering::SeqCst);
self.parent_linked(pad, peer)
}
fn unlinked(&self, pad: &Pad, peer: &Pad) {
self.unlinked.store(true, atomic::Ordering::SeqCst);
self.parent_unlinked(pad, peer)
}
}
}
impl ObjectImpl for TestPad {}
glib_wrapper! {
pub struct TestPad(ObjectSubclass<imp::TestPad>) @extends ::Pad, ::Object;
}
impl PadImpl for TestPad {
fn linked(&self, pad: &Pad, peer: &Pad) {
self.linked.store(true, atomic::Ordering::SeqCst);
self.parent_linked(pad, peer)
}
unsafe impl Send for TestPad {}
unsafe impl Sync for TestPad {}
fn unlinked(&self, pad: &Pad, peer: &Pad) {
self.unlinked.store(true, atomic::Ordering::SeqCst);
self.parent_unlinked(pad, peer)
impl TestPad {
pub fn new(name: &str, direction: ::PadDirection) -> Self {
glib::Object::new(
TestPad::static_type(),
&[("name", &name), ("direction", &direction)],
)
.unwrap()
.downcast::<Self>()
.unwrap()
}
}
@ -132,13 +156,7 @@ mod tests {
fn test_pad_subclass() {
::init().unwrap();
let pad = glib::Object::new(
TestPad::get_type(),
&[("name", &"test"), ("direction", &::PadDirection::Src)],
)
.unwrap()
.downcast::<::Pad>()
.unwrap();
let pad = TestPad::new("test", ::PadDirection::Src);
assert_eq!(pad.get_name(), "test");
@ -146,7 +164,7 @@ mod tests {
pad.link(&otherpad).unwrap();
pad.unlink(&otherpad).unwrap();
let imp = TestPad::from_instance(&pad);
let imp = imp::TestPad::from_instance(&pad);
assert!(imp.linked.load(atomic::Ordering::SeqCst));
assert!(imp.unlinked.load(atomic::Ordering::SeqCst));
}