Playback a presentation does not start on iPad with iPadOS 13 and higher.
The root cause is that `mobileAndTabletCheck` does not detect an iPad as mobile device.
The reasons for this are discussed here: https://github.com/serbanghita/Mobile-Detect/issues/795
A way to detect Safari on IPadOS as mobile device is described here: https://stackoverflow.com/a/60553965
I've added a function `detectLyingiOS13iPad` to work around this problem.
Someone on the mailing list had some recordings which were using the 2.0
playback, but were missing the deskshare.xml file (which should always
be present for 2.0… strange). It's safe to continue loading the recording
playback if the deskshare.xml file is not found, the recording will just act
as if there were no deskshare start/stop events.
Previously the setMediaSync function was only called after the deskshare
loaded, but by moving it to run after all media loaded, it now runs even
on recordings that didn't have deskshare. Make it do nothing (return early)
in that case.
If the secondary media loaded before the main media, it would run the
"setMediaSync" function before the main media player was setup. As a
side-effect of setting up the main media player, all of the event handlers
added by the setMediaSync function are detached, and so the secondary
media never starts playing.
Move the call to setMediaSync to after the media-ready events for all
media have fired, so that it can reliably attach the event handlers.
This reverts a bbb-specific customization made in the jquery.acornmediaplayer.js
file: it's restored to what the upstream player did. I can't find any explanation
for why this change was made in the first place? Reverting it doesn't seem to
cause any playback issues (Popcorn still works, in particular).
The initialization order change to support captions moved the acorn
initialization to after some of the popcorn init had already run. We
have to move that function to run after we create the acorn player
so it references the correct #video element (since acorn replaces/
moves it during init)
Previously, the acorn player was being initialized before the asynchronous
load of captions information completed, meaning that the acorn player didn't
know there were caption tracks, and the CC selector control wasn't available.
Fixes#6463
This fixes font scaling in the presentation area, since that relied on
the <p> element inheriting the font size from the svg <g> that it was
inside of.
This was broken with the switch to the Foundation stylesheet base, which
set a fixed font size on the <p> element.
In BBB 2.0, the cursor positions are given relative to the page
size (like annotation positions). Since the recording cursors
aren't actually drawn in the page like annotations, it's more
convenient to have them relative to the visible area (viewbox),
so do that conversion.
While I'm in here - since we switched to new incompatible scripts
for BBB 2.0 anyways - remove an extra factor in the cursor positions
in cursor.xml, and just use a simple ratio of width/height instead.
The new shapes code, required for handling smooth shape updates & multi-user
whiteboard in the 2.0 BigBlueButton, hits a bug in old recordings where
the pencil tool incorrectly used "line" in its shape names, meaning that
there could be both a pencil mark and a line with the same shape name.
The old recording code didn't rely on the shape name to match shapes, since
there was no chance of concurrent shapes. As this is an incompatible playback
change, we need to make a new playback directory for the updated files.
The previous code would cause shapes to "blink" during updating if
the updates weren't continuous - in a gap between updates, the shape
would disappear.
Rework the logic for looking up "current" shapes to return the
nearest previous update rather than only exact matching timestamps,
and simplify the logic that decides whether to make a shape visible
or hidden.
We were getting the duration with a Popcorn temporary instance. This was causing a slowly increase on the cpu usage, which could compromise the performance of long recordings.
- Created function "seySync( )" which sets the sync logic. Basically, we sync all medias when pausing the master video. We pause the master video when any video receives a waiting event, or when the master video is seeked. If necessary, we resume playing after the sync.
- Refactored when 'media-ready' event is fired. We fire this event only when the medias receive a 'canplayall' event.
- Popcorn "onFrame" method runs around 6 times per second. That was unnecessary , causing the CPU work to significantly increase, and preventing the two videos (deskshare and webcam) to run together smoothly
- We only synchronize the medias if one of them fires a "waiting" event. If the user pauses the playback, we synchronize them as well.
The playback had no handling for this type of event. The aspect ratio used to calculate the max-width of the slide div has to be the vbox aspect ratio.
