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utils/streamproducer: add API to not forward eos to consumers

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User may want to plug another producer when one is eos, in such case we
don't want to propagate eos to consumers.
This commit is contained in:
Guillaume Desmottes 2022-05-12 15:17:13 +02:00 committed by Sebastian Dröge
parent 351f070c8e
commit f68efd0cab
1 changed files with 25 additions and 9 deletions
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34
gstreamer-utils/src/streamproducer.rs
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@ -115,6 +115,11 @@ impl StreamProducer {
self.consumers.lock().unwrap().discard = false;
}
/// configure if EOS from appsrc should be forwarded to all the consumers
pub fn set_forward_eos(&self, forward_eos: bool) {
self.consumers.lock().unwrap().forward_eos = forward_eos;
}
/// Get the GStreamer `appsink` wrapped by this producer
pub fn appsink(&self) -> &gst_app::AppSink {
&self.appsink
@ -143,6 +148,7 @@ impl<'a> From<&'a gst_app::AppSink> for StreamProducer {
latency_updated: false,
consumers: HashMap::new(),
discard: true,
forward_eos: true,
}));
appsink.set_callbacks(
@ -241,17 +247,25 @@ impl<'a> From<&'a gst_app::AppSink> for StreamProducer {
Ok(gst::FlowSuccess::Ok)
}))
.eos(glib::clone!(@strong consumers => move |_| {
let current_consumers = consumers
.eos(glib::clone!(@strong consumers => move |appsink| {
let stream_consumers = consumers
.lock()
.unwrap()
.consumers
.values()
.map(|c| c.appsrc.clone())
.collect::<Vec<_>>();
.unwrap();
for consumer in current_consumers {
let _ = consumer.end_of_stream();
if stream_consumers.forward_eos {
let current_consumers = stream_consumers
.consumers
.values()
.map(|c| c.appsrc.clone())
.collect::<Vec<_>>();
drop(stream_consumers);
for consumer in current_consumers {
gst::debug!(CAT, obj: appsink, "set EOS on consumer {}", consumer.name());
let _ = consumer.end_of_stream();
}
} else {
gst::debug!(CAT, obj: appsink, "don't forward EOS to consumers");
}
}))
.build(),
@ -292,6 +306,8 @@ struct StreamConsumers {
consumers: HashMap<gst_app::AppSrc, StreamConsumer>,
/// Whether appsrc samples should be forwarded to consumers yet
discard: bool,
/// Whether appsrc EOS should be forwarded to consumers
forward_eos: bool,
}
/// Wrapper around a consumer's `appsrc`