ref(QualityController) Add recovery mechanism and adjust the resolution check. (#2546)
* ref(QualityController) Add recovery mechanism and adjust the resolution check.
Impl a recovery mechanism for the lastN to be increased if the cpu limitation goes away and doesn't return after increasing lastN. Also, additionally improve the calculation of the expected resolution taking simulcast stream resolutions into account.
* squash: Address review comments and add more unit tests
* squash: Address review comments
feat(quality) Add a QualityController class for runtime adjustments. (#2542)
* feat(quality) Add a QualityController class for runtime adjustments.
Make run time adjustments to the client when adaptive mode is enabled.
* feat: Update lastN and receive resolution to improve quality.
* squash: Address review comments
* squash: Add more logging and address review comments.
Add SVC and Simulcast support for AV1 and VP9. (#2350)
Add SVC and Simulcast support for AV1 and VP9.
The default mode is the full SVC mode for VP9. It works as expected with the current version of JVB.
AV1 in the client is only supported when the bridge negotiates the Dependency Descriptor extension headers which are needed for reading the layer information for AV1 and H.264 video frames.
* feat: Enable H.264 simulcast support.
Multi-encoding simulcast for H.264 is supported now because of the DD header ext support added on the bridge side.
* fix(video-quality): Add default bitrates for all codecs.
Expect the videoQuality settings in the new format, deprecated configs are still supported.
videoQuality: {
AV1: {
maxBitratesVideo: {
low: 100000,
standard: 300000,
high: 1000000,
ssHigh: 1500000
},
useScalabilityModeAPI: {
enabled: true,
useSimulcast: true, //(defaults to SVC),
useKSVC: true //(defaults to L3T3_KEY)
},
},
H264: {
maxBitratesVideo: {
low: 200000,
standard: 500000,
high: 1500000,
ssHigh: 2500000
}
},
VP8: {
maxBitratesVideo: {
low: 200000,
standard: 500000,
high: 1500000,
ssHigh: 2500000
}
},
VP9: {
maxBitratesVideo: {
low: 100000,
standard: 300000,
high: 1200000,
ssHigh: 2500000
},
useScalabilityModeAPI: {
enabled: true,
useSimulcast: true, //(defaults to SVC),
useKSVC: true //(defaults to L3T3_KEY)
},
}
}
* Disable encodings when requested height for screenshare is 0.
* feat: add unit tests for scalability modes.
* ref: Move all encoding configuration calculation to TPCUtils.
* Add more unit tests for VP9 K-SVC mode.
* Make codec name in settings case insensitive.
Also read the deprecated max bitrates correctly, add unit tests to test it.
* ref(TPC): isSimulcastOn -> isSpatialScalabilityOn.
It makes more sense to call it spatial scalability than simulcast now that full SVC support is available.
* fix: Negotiate AV1 DD header exts only for AV1 and H.264.
* fix: Rename setting useL3T3Mode->useKSVC and adjust the defaults.
* fix(codec-selection) Use a configurable preferred codecs list to select the codecs.
Allow asymmetric codecs to be configured on the endpoints. This means that Firefox and Safari which have bugs with VP9 encode will now encode VP8 but decode VP9 coming in from Chromium endpoints.
* fix(codec-selection) Add unit tests for the codec selection logic.
* feat(codec-selection): Introduce mobileCodecPreferenceOrder setting in config.js.
* fix(codec-selection) Avoid unnecessary renegotiations.
On participant join/leave, check if the new intersection of codecs are already configured to be the top n codecs.
* Address review comments
* fix: Strip the codecs that are not in the codec list from the video m-lines.
Also, ignore remote codecs published in presence for p2p connections.
* fix: Define default codec order for mobile and desktop.
Fix an issue where p2p between mobile and desktop was broken.
* fix: Add default codecs for both p2p and jvb on mobile devices.
Munge the initial offer sent out by RN clients since RN doesn't support RTCRtpTransceiver#setCodecPreferences.
* ref(TPC) Configure encodings in one go.
Configure the active state, maxBitrate and degradation preference in one go instead of configuring them separately.
* squash: Address review comments.
* squash: fix a comment.
fix(TPC): Do not remove ssrcs from remote desc for p2p.
In unified plan, re-use of m-line (i.e., adding an SSRC, removing it and then adding it back) causes the browser to not render the media on Chrome and Safari. The WebRTC spec is not clear as to how browsers have to behave, this doesn't cause any issues on Firefox. As a workaround, only change the media direction and leave the ssrc in the remote desc. This automatically triggers a 'removetrack' event on the associated MediaStream and the track can be removed from the UI.
Refactors the way send/receive video constraints are managed and puts the high level
logic in a separate module. See QualityController.js for high level overview on how
the constraints are managed now.
Adds events to JitsiConference fired whenever it starts new jvb/p2p session.
Adds event to JingleSessionPC.js when remote party signals receive max frame height.
Also adds signaling of the local recv preference for the p2p mode(only existed for JVB).
Jaya Allamsetty
Jaya Allamsetty
bgrozev
Paweł Domas