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onvifmetadataparse: Reset state in PAUSED->READY after pad deactivation

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Otherwise the clock id will simply be overridden instead of unscheduling
it, and if the streaming thread of the source pad currently waits on it
then it will wait potentially for a very long time and deactivating the
pad would wait for that to happen.

Also unschedule the clock id on `Drop` of the state to be one the safe
side and not simply forget about it.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1531>
This commit is contained in:
Sebastian Dröge 2024-04-05 10:19:58 +03:00
parent 98dce3c49c
commit 0b0fc7f7d4
1 changed files with 17 additions and 5 deletions
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22
net/onvif/src/onvifmetadataparse/imp.rs
View file

@ -153,6 +153,14 @@ impl Default for State {
}
}
impl Drop for State {
fn drop(&mut self) {
if let Some(clock_wait) = self.clock_wait.take() {
clock_wait.unschedule();
}
}
}
pub struct OnvifMetadataParse {
srcpad: gst::Pad,
sinkpad: gst::Pad,
@ -1595,14 +1603,18 @@ impl ElementImpl for OnvifMetadataParse {
) -> Result<gst::StateChangeSuccess, gst::StateChangeError> {
gst::trace!(CAT, imp: self, "Changing state {:?}", transition);
if matches!(
transition,
gst::StateChange::PausedToReady | gst::StateChange::ReadyToPaused
) {
if matches!(transition, gst::StateChange::ReadyToPaused) {
let mut state = self.state.lock().unwrap();
*state = State::default();
}
self.parent_change_state(transition)
let res = self.parent_change_state(transition)?;
if matches!(transition, gst::StateChange::PausedToReady) {
let mut state = self.state.lock().unwrap();
*state = State::default();
}
Ok(res)
}
}