ICE lite servers (eg mediasoup) dont need candidates signaled out-of-band; neither does KMS in certain scenarios
Disable their signaling saves us some ticks in bbb-webrtc-sfu and some bandwidth all around
There could be a race condition where a peer creation (async) would resolve after the provider was unmounted
That would lead to a state inconsistency which could generate all sorts of cryptic problems
Applies to video, listen only and screen sharing
New metadata values: media-server-video, media-server-listenonly, media-server-screenshare; parameter is a String
Added support for getStats in screenshare's service. This works similar
to the getStats for video provider, and the information retrieved from
screenshare is added to the video information for cameras.
We now retrieve update information about active video peers, and calculates
download and upload rates. These rates are the sum of data transfered in
all video peers.
Screenshare stats is not being added to the sum, yet.
Let the server generate subscriber offers so that it becomes easier for us to
do payload type normalization between publishers and subscribers
Also split peer creation for pubs and subs into separate methods for clarity
Should fix an issue with the recent Chrome 92 intervention that limits
the number of concurrent WebMediaPlayers (an inner element of
HTMLMediaElements) to 75/40.
Webcam video elements were being left dangling in paused state despite
the elements themselves being cleaned up from the component. That
generated a skewed accounting of WebMediaPlayers in the session.
Changes (maybe not a complete list):
- Disable virtualbgs by default
- Move the virtualbg selector in video-preview to the side below the
profile selection
- Restore old video-preview sizes
- Add a wrapper class for MediaStreams (BBBVideoStream)
- Centralize virtualbg services and business logic code into BBBVideoStream
- Refactor and centralize virtualbg constant fetching
- Refactor and centralize virtualbg config fetching
- Organize virtualbg type definitions
- Remove added states in video-provider to prevent further bloat
- Remove added states in video-preview to prevent further bloat
- Lock virtual bg switching while video-preview itself is locked
- Add proper virtualbg error surfacing via toasts
- Refactor iOS availability detection to use centralized UA checker
- Avoid calling gUM when toggling virtualbgs on/off
- Make virtualbg video-list-item action a toggle instead of a
state-aware action
- Make virtualbg switching work in video-preview for cameras that are
already shared. Especially useful when there are multiple source
cameras, and will be important in the near future
- Add Derivative Work notices in files that are partially copied from
jitsi-meet
- Simplify track replacing in video-provider
- Split video-preview UI code for virtualbgs into a separate functional component
Shave off the number of calls in video-preview and video-provider by
using a stream storage
We don´t call an upfront gUM in video-preview anymore to lift the
fingerprinting barrier on device labels and IDs. Flow has been reversed:
upfront enumerate, load first preview, then check if previous
enumeration was obfuscated.
Add a stream storage in video-preview`s service to avoid re-fetching
them in video-providerj
Remove some unneeded video-preview container props
Improve some of video-preview`s error locales
Remove parts of a previous connection monitor.
To add some context (as far as my memory goes) to the multiple connection
monitor features the product has, `stats` (currently named `connection status`)
was introduced at the Flash client back in ~2016. @fcecagno and I did it
as a BigBlueButton's Summit activity. Our work was squashed into a single
commit in 92554f8b3e :).
I'm not sure about the whole story behind `network information` (the late
connection monitor added to the HTML5 client) but I assume it should work
as a collector for a bunch of different connectivity monitors. I remember
when it was introduced but I don't know why it wasn't adopted. My best guess
would be because of some performance issues the `user list` had back then.
To follow on why `connection status` replaced `network information` at the
HTML5 client, when I did the `multiple webcams` feature I had to refactor
a big chunk of the `video provider` (#8374). Something that wasn't really
helping there was the adaptation of `stats` that was made to show local
feedback for each webcam connection. Although this feature wasn't being
used anymore, `network information` did rely on that to build up data. With
this monitor gone I assumed it was my responsibility to provide an alternative
so I promoted Mconf's port of the Flash `stats` monitor to BigBlueButton's
HTML5 client (#8579).
Well, that's my perspective on how things went for those features. If
anyone would like to correct me on something or add something else on
that history I would appreciate to know.
Add the `camera` icon in the user list for whoever is sharing,
in order to improve the understanding of who is sharing the webcam.
It is possible to enable/disable this indication in the settings.yml
Video streams can be sorted by voice floor activity in the client according to FreeSWITCH´s floor events. The feature works together with pagination, essentially giving an Last-N like experience while not disrupting too much
Made video stream sorting extensible in a way. The sorting modes for pagination and unbounded can be configured in settings.yml and new sorting modes can be added to the stream sorting util under video-provider. Inline docs explain how to do that
Changed how the stream ID attribute from video-streams collection was passed to downstream components; we had an array map that was executed every change just to map stream to cameraId, which is bizarre. So I changed the cameraId usage in downstream components to be conformat with the collection attributes and shaved off the map where it wasnt needed
Add better selectors to video-list-item container´s VoiceUser fetch
New config called paginationThreshold defines classes of page sizes that depend on the number of participants of a meeting
The rationale is pretty much the same as the cameraQualityThresholds, but the thresholds are users here and the ceilings are the page sizes
Problem: setReconnectionTimeout was being called in the first candidate generation to set the negotiation/reconnection timeout up. That caused some browsers or specific scenarios (mainly envs without STUN) to establish the negotiation (playStart) before generating any useful out-of-band candidates (relay). That would cause the timeout to be set AFTER it is supposed to be cleared due to success (playStart), making the webcam drop after a while
So I moved the setReconnectionTimeout call to a safer spot: right after the first negotiation requisition goes out to bbb-webrtc-sfu
There's some scenarios that video errors triggers multiple toast notifications
that don't have any mapped defined message feedback so they all drop to the default
permission error. This leaves the impression that something is broken at the toast
container.
Since those messages don't bring up much information about the problem we can avoid sending
them until we don't have a more informative one to notify the user.
When multiple actions were bolted in the dropdown (mirror, focus), keys were getting duplicated with cameraId. Make them unique based on the action`s name
Recent fix to the stop all cameras behaviour exposed a bug where the local camera connecting state wasnt being cleared up when a camera timed out before being successfully shared
Video provider's service for local stream control was wrongly setting the disconnected
state when a multiple webcam user tried to stop a single cam. The `stopVideo` method
was inconsistent when called multiple times for the same `cameraId`.
Included a better testing scope for event dispatching and disconnected state handling.
BigBlueButton already allows mirroring the users own webcam as a global
setting set by administrators. Users have no way of choosing this on
their own.
This patch turns this functionality into a user setting for all webcams.
Every camera menu now gets a “mirror” entry.
The global setting is still used as a default value, keeping the current
behavior as it is to not confuse users.
This is a very simple patch improving the support for 16x9 cameras.
In mixed mode – if 4x3 and 16x9 cameras are present – everything looks
like it did before but if only 16x9 (or wider) cameras are present,
BigBlueButton will drop the letter boxes and show a 16x9 video
container.
If, at the time the video is shared, the user has a viewer role and
meta_hack-record-viewer-video is false this user won't have this video
stream recorded.
This adds bbb_record_video userdata that, when is set to false, signals
bbb-webrtc-sfu to avoid generating the stream recording assets for a
particular user.
By default, bbb_record_video is true.
