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webrtcsink: Fix the way we handle max-bitrate

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Computation of actual max bitrate was broken and in the end it is simpler
to keep the value set by the user and take into account the fec only
when required.
This commit is contained in:
Thibault Saunier 2022-08-19 18:02:27 -04:00 committed by Mathieu Duponchelle
parent e0ad7e4c16
commit 2dc42ba0db
1 changed files with 19 additions and 21 deletions
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40
plugins/src/webrtcsink/imp.rs
View file

@ -257,7 +257,7 @@ impl Default for Settings {
cc_info: CCInfo {
heuristic: WebRTCSinkCongestionControl::GoogleCongestionControl,
min_bitrate: DEFAULT_MIN_BITRATE,
max_bitrate: (DEFAULT_MAX_BITRATE as f64 * 1.5) as u32,
max_bitrate: DEFAULT_MAX_BITRATE as u32,
start_bitrate: DEFAULT_START_BITRATE,
},
do_fec: DEFAULT_DO_FEC,
@ -937,7 +937,7 @@ impl Consumer {
WebRTCSinkCongestionControl::Disabled => {
// If congestion control is disabled, we simply use the highest
// known "safe" value for the bitrate.
enc.set_bitrate(element, (self.cc_info.max_bitrate as f64 / 1.5) as i32);
enc.set_bitrate(element, self.cc_info.max_bitrate as i32);
enc.transceiver.set_property("fec-percentage", 50u32);
}
WebRTCSinkCongestionControl::Homegrown => {
@ -1348,13 +1348,13 @@ impl WebRTCSink {
match settings.cc_info.heuristic {
WebRTCSinkCongestionControl::GoogleCongestionControl => {
let cc_info = settings.cc_info;
webrtcbin.connect_closure(
"request-aux-sender",
false,
glib::closure!(@watch element, @strong peer_id
=> move |_webrtcbin: gst::Element, _transport: gst::Object| {
let settings = element.imp().settings.lock().unwrap();
let cc = match gst::ElementFactory::make("rtpgccbwe", None) {
Err(err) => {
glib::g_warning!("webrtcsink",
@ -1364,10 +1364,11 @@ impl WebRTCSink {
return None;
},
Ok(e) => {
let max_bitrate = (settings.cc_info.max_bitrate as f64 * if settings.do_fec { 1.5 } else { 1.}) as u32;
e.set_properties(&[
("min-bitrate", &cc_info.min_bitrate),
("estimated-bitrate", &cc_info.start_bitrate),
("max-bitrate", &cc_info.max_bitrate),
("min-bitrate", &settings.cc_info.min_bitrate),
("estimated-bitrate", &settings.cc_info.start_bitrate),
("max-bitrate", &max_bitrate),
]);
// TODO: Bind properties with @element's
@ -1527,11 +1528,16 @@ impl WebRTCSink {
webrtcbin.clone(),
peer_id.clone(),
match settings.cc_info.heuristic {
WebRTCSinkCongestionControl::Homegrown => Some(CongestionController::new(
&peer_id,
settings.cc_info.min_bitrate,
settings.cc_info.max_bitrate,
)),
WebRTCSinkCongestionControl::Homegrown => {
let max_bitrate = (settings.cc_info.max_bitrate as f64
* if settings.do_fec { 1.5 } else { 1. })
as u32;
Some(CongestionController::new(
&peer_id,
settings.cc_info.min_bitrate,
max_bitrate,
))
}
_ => None,
},
settings.cc_info,
@ -2377,13 +2383,7 @@ impl ObjectImpl for WebRTCSink {
}
"max-bitrate" => {
let mut settings = self.settings.lock().unwrap();
settings.cc_info.max_bitrate = (value.get::<u32>().expect("type checked upstream")
as f32
* if settings.do_fec {
settings.cc_info.max_bitrate as f32 * 1.5
} else {
1.
}) as u32;
settings.cc_info.max_bitrate = value.get::<u32>().expect("type checked upstream");
}
"start-bitrate" => {
let mut settings = self.settings.lock().unwrap();
@ -2440,9 +2440,7 @@ impl ObjectImpl for WebRTCSink {
}
"max-bitrate" => {
let settings = self.settings.lock().unwrap();
((settings.cc_info.max_bitrate as f32 / if settings.do_fec { 1.5 } else { 1. })
as u32)
.to_value()
settings.cc_info.max_bitrate.to_value()
}
"start-bitrate" => {
let settings = self.settings.lock().unwrap();