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jitterbuffer: release state lock when requesting pt map

Browse source 
This is similar to what the standard jitterbuffer does, and
is necessary to avoid deadlocks with the rtpbin session lock,
if the user calls onto any API that requires us to take the
state lock at the wrong time (eg setting the latency property,
clearing the pt map)
This commit is contained in:
Mathieu Duponchelle 2020-04-14 20:53:01 +02:00 committed by Mathieu Duponchelle
parent d08268627e
commit bdfb24abbd
1 changed files with 17 additions and 10 deletions
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27
generic/threadshare/src/jitterbuffer/jitterbuffer.rs
View file

@ -450,16 +450,23 @@ impl SinkHandler {
}
}
if state.clock_rate.is_none() {
let caps = element
.emit("request-pt-map", &[&(pt as u32)])
.map_err(|_| gst::FlowError::Error)?
.ok_or(gst::FlowError::Error)?
.get::<gst::Caps>()
.map_err(|_| gst::FlowError::Error)?
.ok_or(gst::FlowError::Error)?;
self.parse_caps(inner, &mut state, element, &caps, pt)?;
}
let mut state = {
if state.clock_rate.is_none() {
drop(state);
let caps = element
.emit("request-pt-map", &[&(pt as u32)])
.map_err(|_| gst::FlowError::Error)?
.ok_or(gst::FlowError::Error)?
.get::<gst::Caps>()
.map_err(|_| gst::FlowError::Error)?
.ok_or(gst::FlowError::Error)?;
let mut state = jb.state.lock().unwrap();
self.parse_caps(inner, &mut state, element, &caps, pt)?;
state
} else {
state
}
};
inner.packet_rate_ctx.update(seq, rtptime);