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rsinter: add 'event-types' property to intersink

Browse source 
The event-types property defaults to Eos.  Setting an
array of additional, serialized event types results in
calling the producer.set_forward_events with those types
so that the events will be forwarded to any consumers.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1875>
This commit is contained in:
Thomas Goodwin 2024-10-22 14:15:01 -04:00 committed by GStreamer Marge Bot
parent 79845fd99a
commit 2cbf83d7e2
3 changed files with 105 additions and 9 deletions
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11
docs/plugins/gst_plugins_cache.json
View file

@ -7716,6 +7716,17 @@
}
},
"properties": {
"event-types": {
"blurb": "Forward Event Types (default EOS)",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"mutable": "ready",
"readable": true,
"type": "GstValueArray",
"writable": true
},
"producer-name": {
"blurb": "Producer Name to use",
"conditionally-available": false,

55
generic/inter/src/sink/imp.rs
View file

@ -15,12 +15,14 @@ const DEFAULT_PRODUCER_NAME: &str = "default";
#[derive(Debug)]
struct Settings {
producer_name: String,
event_types: Vec<gst::EventType>,
}
impl Default for Settings {
fn default() -> Self {
Settings {
producer_name: DEFAULT_PRODUCER_NAME.to_string(),
event_types: vec![gst::EventType::Eos],
}
}
}
@ -41,9 +43,9 @@ impl InterSink {
let settings = self.settings.lock().unwrap();
let state = self.state.lock().unwrap();
InterStreamProducer::acquire(&settings.producer_name, &state.appsink)?;
Ok(())
InterStreamProducer::acquire(&settings.producer_name, &state.appsink).map(|producer| {
producer.set_forward_events(settings.event_types.clone());
})
}
fn unprepare(&self) {
@ -83,12 +85,28 @@ impl ObjectSubclass for InterSink {
impl ObjectImpl for InterSink {
fn properties() -> &'static [glib::ParamSpec] {
static PROPERTIES: LazyLock<Vec<glib::ParamSpec>> = LazyLock::new(|| {
vec![glib::ParamSpecString::builder("producer-name")
.nick("Producer Name")
.blurb("Producer Name to use")
.doc_show_default()
.mutable_playing()
.build()]
vec![
glib::ParamSpecString::builder("producer-name")
.nick("Producer Name")
.blurb("Producer Name to use")
.doc_show_default()
.mutable_playing()
.build(),
gst::ParamSpecArray::builder("event-types")
.element_spec(
&glib::ParamSpecEnum::builder_with_default(
"event-type",
gst::EventType::Eos,
)
.nick("Event Type")
.blurb("Event Type")
.build(),
)
.nick("Forwarded Event Types")
.blurb("Forward Event Types (default EOS)")
.mutable_ready()
.build(),
]
});
PROPERTIES.as_ref()
@ -123,6 +141,16 @@ impl ObjectImpl for InterSink {
}
}
}
"event-types" => {
let mut settings = self.settings.lock().unwrap();
let types = value
.get::<gst::Array>()
.expect("type checked upstream")
.iter()
.map(|v| v.get::<gst::EventType>().expect("type checked upstream"))
.collect::<Vec<_>>();
settings.event_types = types;
}
_ => unimplemented!(),
};
}
@ -133,6 +161,15 @@ impl ObjectImpl for InterSink {
let settings = self.settings.lock().unwrap();
settings.producer_name.to_value()
}
"event-types" => {
let settings = self.settings.lock().unwrap();
settings
.event_types
.iter()
.map(|x| x.to_send_value())
.collect::<gst::Array>()
.to_value()
}
_ => unimplemented!(),
}
}

48
generic/inter/tests/inter.rs
View file

@ -136,3 +136,51 @@ fn test_change_producer_name() {
element1.set_state(gst::State::Null).unwrap();
element2.set_state(gst::State::Null).unwrap();
}
#[test]
#[serial]
fn test_event_forwarding() {
init();
let mut hc = start_consumer("p");
let (srcpad, intersink) = start_producer("p");
intersink.set_state(gst::State::Null).unwrap();
intersink.set_property(
"event-types",
gst::Array::new(vec![gst::EventType::Eos, gst::EventType::CustomDownstream]),
);
intersink.set_state(gst::State::Playing).unwrap();
// FYI necessary push b/c:
// https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1875#note_2630453
push_one(&srcpad, gst::ClockTime::from_nseconds(1));
let s = gst::Structure::builder("MyEvent")
.field("unsigned", 100u64)
.build();
assert!(srcpad.push_event(gst::event::CustomDownstream::new(s)));
assert!(srcpad.push_event(gst::event::Eos::new()));
let mut found = false;
loop {
use gst::EventView;
if let Ok(event) = hc.pull_event() {
match event.view() {
EventView::CustomDownstream(e) => {
let v = e.structure().unwrap().get::<u64>("unsigned");
assert!(v.is_ok_and(|v| v == 100u64));
found = true;
break;
}
EventView::Eos(..) => {
break;
}
_ => (),
};
}
}
intersink.set_state(gst::State::Null).unwrap();
assert!(found);
}