Virtual Classroom API changelog
Virtual Classroom API changelog
www.braincert.com

Virtual Classroom Platform Update (December 27, 2021)

 

Update

  

We've launched an updated version of our virtual classroom with two new features.

 

New Feature

  
  1. Students/attendees in breakout rooms can now send private messages to the instructor/host in the main room.

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  1. Users can now change figure opacity in the whiteboard.

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Virtual Classroom Platform Update (December 20, 2021)

 

Update

  

We have released a major performance update to our virtual classroom across all global data center locations. The new update comes with major performance improvements, new features, & minor bug fixes.

  1. [Fix] Document control panel can now be dragged beyond the top bar.
  2. [Fix] Bottom tab bar remains in landscape mode when the phone (android) is turned to the right.
  3. [Fix] Fixed incorrect autofill of mentions in chat.
  4. [Fix] Fixed long tooltips in the attendee list.
  5. [Fix] Fixed text tool input being misplaced for teachers.
  6. [Fix] Delay in recording processing fixed.
  7. [Fix] Fixed tools menu & color picker partially hidden behind the top bar in mobile devices.
  8. [Fix] Teacher sees student's cursor on board after locking the board tab
  9. [Fix] Recording indicator disappears for student if they refresh the page in a break room
  10. [Fix] Fixed an issue with visible student cursors, even when there are no rights
  11. [Fix] Recordings with isRecordingLayout=1 do not work in Safari
  12. [Fix] Wolfram and latex tools are not fully visible in recordings
 

Improvement

  
  1. [Improvement] Improved mobile layout to show the draggable instructor video panel over the whiteboard and chat notifications when bottom panel is collapsed
  2. [Improvement] New design for hiding the controls in horizontal orientation in mobile devices.
  3. [Improvement] Adjusted breakout rooms logic, now they stay sticky for the entire session
  4. [Improvement] Added recording pop-up, icon, and timer for the students when the class is being recorded.
  5. [Improvement] Improvements for enhanced recording layouts.
  6. [Improvement] Added custom color themes for enhanced recording layout.
  7. [Improvement] Improved processing duration for recorded final MP4 files
  8. [Improvement] Optimized end-to-end routing of BrainCert's proprietary Software Defined Smart WebRTC Network (SD-SWN™) along with built-in Simulcast technology for consistent and reliable end-to-end low-latency performance.

Redesigned Virtual Classroom

 

Improvement

  

We are excited to announce the launch of our Redesigned Virtual Classroom platform. While we have fully revamped the UI of the platform and have introduced some new features, nothing has changed in the backend. So how a user schedules & conducts live classes remains the same.

New Features

  1. [New Feature] In the latest update we've redesigned the UI of the breakout room & have introduced a drag & drop functionality to it. Now instructors can drag & drop attendees to & from a breakout room easier than in the previous version.

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  1. [New Feature] Now attendees can pin/unpin the toolbar on the left side of the whiteboard. The pin/unpin functionality has been introduced to replace the previous expand/collapse option.

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  1. [New Feature] Now attendees can close all tools & functionalities except the toolbar on the whiteboard using the "Close All feature". This feature has been added to help instructors better utilize the screen space.
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  2. [New Feature] Now instructors can opt to keep video streams below the whiteboard.

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Improvements

  1. [Improvement] Image tool, document reader, media player, and polls have been grouped together at bottom right.

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  1. [Improvement] Video settings option have been moved to the top right side of the whiteboard.

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  1. [Improvement] Attendee settings have been moved to bottom right. Unlike in the previous version, instructors can use this feature to enable/disable mic, video, screen share & whiteboard access to attendees.

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  1. [Improvement] The new virtual classroom platform comes with an updated color theme for the new app interface and all existing theme colors from the older version are honored.

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Virtual Classroom Update (July 15, 2021)

 

Improvement

 

 

We have rolled out a major update to our Virtual Classroom platform across all datacenter locations. The new update comes with major performance improvements, new features & minor bug fixes.

New Features

  1. [NEW Feature] Now attendees with whiteboard access can copy an image from anywhere and paste it in the whiteboard directly.
  2. [NEW Feature] Color of SEND button in chat can now be customized.

Improvements

  1. [Improvement] Newly opened popup window now overlaps the previously opened popup window.
  2. [Improvement] Students in breakout rooms can now see lesson timer.
  3. [Improvement] Students without special rights can now insert images on whiteboard.
  4. [Improvement] Improved CPU Optimization.
  5. [Improvement] All 10 global datacenter locations has been greatly optimized with our improved congestion control technology to help overcome unpredictable mobile data network conditions such as packet loss and jitter.

Fixes

  1. [Fix] Screen sharing title now translates automatically while changing the language.
  2. [Fix] Fixed students seeing incorrect page when teacher switches document pages while students' VC tab loads.
  3. [Fix] Fixed Students not being able to send problem report after class finishes.
  4. [Fix] Fixed student timer not getting updated when teachers extend lesson time in breakout room.
  5. [Fix] Fixed students in breakout room not seeing end-of-class alert when teacher manually ends the class.
  6. [Fix] Fixed student-presenter losing the role when teachers enter the breakout room.
  7. [Fix] Fixed connectivity test for upload speed showing inadequate result.

Virtual Classroom Update (April 3, 2021)

 

Update

 

 

We have now upgraded our new Virtual Classroom build across all global datacenter locations and have come up with some major performance improvements and feature updates.

Performance Improvements

  1. [IMPROVEMENT] High-quality MP4 video encodings in the cloud through quality-defined variable bitrate (QVBR) control which is designed to deliver constant video quality and waste zero bits in the process.
  2. [IMPROVEMENT] Improved Simulcast technology for better audio and video performance
  3. [IMPROVEMENT] Improved performance with Safari 12+ browser
  4. [IMPROVEMENT] Documents on the whiteboard will now load faster for attendees joining the session late
  5. [IMPROVEMENT] Users can now delete the saved boards from library
  6. [IMPROVEMENT] Users can customize the SEND button color in chat
  7. [IMPROVEMENT] Updated translations (Arabic & German) in Virtual Classroom environment
  8. [IMPROVEMENT] Users need to confirm before deleting a board
  9. [IMPROVEMENT] Delete board button has been moved to the right

Bug Fixes

  • [Fix] When teacher hides global chat, private chats between teacher and students are now available
  • [Fix] Fixed YouTube video's sound playing with delay for the user who started it
  • [Fix] Fixed the incorrect toggles in right to left interface
  • [Fix] Fixed incorrect toggles in right-to-left interface
  • [Fix] Fixed Down arrows in drop-down lists in class settings getting misplaced in right-to-left interface
  • [Fix] Previous private chat history is now accessible to users after re-entering the VC
  • [FIX] Fixed Video quality reducing from high to standard when switching to expanded mode from enlarged mode
  • [FIX] Fixed the error where users cannot see mic indicator in Settings in Mozilla and Safari browsers
  • [FIX] Text tool is not always properly activated
  • [FIX] Code editor tabs do not scroll vertically or horizontally beyond the first tab in mobile version
  • [FIX] Recording does not continue after the presenter stops viewing the BreakRoom
  • [Fix] Move "delete board" button to the right
  • [Fix] Presenter sometimes sees the "Waiting for presenter" popup when entering the room
  • [Fix] Screen sharing tooltip language is localized only after refreshing the page
  • [Fix] Remove deleting option for files in document and video library
  • [Fix] User sees own text typed in text tool on a wrong tab when another user switches tabs during typing
  • [Fix] Previous private chat history is not accessible to user after re-entering the VC
  • [Fix] Users sometimes cannot close screensharing tab if they move between rooms without turning screensharing off
  • [Fix] Text tool area doesn't increase when user types in several lines in Firefox
  • [Fix] User needs to click Enter twice in the same line to get to a new line in Text tool
  • [Fix] Recording button should not be clickable in rooms with isRecord=3
  • [Fix] User sees new board content on a wrong tab if new content was placed while VC's browser tab was not active
  • [Fix] User in safari does not see list of available devices
  • [Fix] User doesn't see mic indicator in Settings in Mozilla and Safari
  • [Fix] Safari 12.1 ignores devices saved in local storage
  • [Fix] Unexpected behavior when teacher switches document pages while student's VC tab is inactive
  • [Fix] Unexpected behavior when user types in text tool in several lines and switches tabs
  • [Fix] Video quality reduces from high to standard when leaving from enlarged mode to expanded mode
  • [Fix] User cannot turn 16:9 aspect ration on
  • [Fix] Auto select speaker icon in enlarged conference screen doesn't work sometimes
  • [Fix] There is no sound for finished library videos re-played after recording starts
  • [Fix] Line breaks in text tool are ignored when user stops typing on Android devices with Gboard
  • [Fix] Users HD stream has SD bitrate if another user receives the HD stream
  • [Fix] Incoming audio bitrate is not calculated properly in Info popup
  • [Fix] Sometimes text from text tool appears on the wrong tab for attendees if the tab is switched during typing
  • [Fix] Snapshot appears atop of the video when teacher makes a snapshot of student's video in collapsed or expanded video chat
  • [Fix] Scrollbar in tabs panel should be thinner in Firefox
  • [Fix] Newly opened popup window should overlap previously opened popup window
  • [Fix] Investigate abnormal sound on few user recordings
  • [Fix] Forbid recording in Safari 11 and less (These versions won't work correctly, because they are outdated)
  • [Fix] If user uploads images in chat during recording, the recording file comes out damaged
  • [Fix] Safari: recording doesn't start if there is a video playing in video tool

Virtual Classroom Update (January 31, 2021)

 

Update

 

 

We have rolled out a new update to our Virtual Classroom platform. The new update comes with 4 major performance improvements, 11 major bug fixes, and some minor bug fixes.

Performance Improvements

  • [IMPROVEMENT] Recording improvements for faster processing
  • [IMPROVEMENT] Better optimized audio & video performance with iOS devices running Safari 12+ browser
  • [IMPROVEMENT] Seamless connectivity and better performance even when there are more than 100 attendees in a room
  • [IMPROVEMENT] Improved connectivity test results

Bug Fixes

  • [FIX] User's placeholder background in attendee list briefly disappears when user enters the VC
  • [FIX] Chat panel icons are upside down when the panel is collapsed in right-to-left interface
  • [FIX] User cannot upload files from cloud services
  • [FIX] The teacher(s) should always be at the top of the attendee list
  • [FIX] Content in Latex tool is misplaced in right-to-left interface
  • [FIX] Wolfram alpha examples button is overlapped by text in right-to-left interface
  • [FIX] Expanded mode videos are misplaced in right-to-left interface
  • [FIX] VC board interface breaks when users try to draw on the board before the board is loaded
  • [FIX] Student-presenters cannot scroll whiteboard inside Breakrooms
  • [FIX] Change code editor tooltip style
  • [FIX] Recording does not start automatically for the second teacher when the first teacher leaves the room

Virtual Classroom Update (Nov 30, 2020)

 

Update

 

 

Built upon scalable, secure and reengineered architecture, BrainCert Virtual Classroom offers end-to-end encryption and stable connectivity across 10 global datacenter locations.

This new release has various great improvements listed below:

  • New redesigned API dashboard to manage API keys, domains, recordings and web hooks
  • Centralized dashboard to manage multiple branded API domains from a single user account.
  • Multiple teachers can now join classes using isTeacher=1 API call. With this new change, multiple teachers and moderators can join the class, but recording button is controlled by whoever joined the class session first or currently present in the classroom. In this way, recording is not interrupted causing corruption.
  • Content library available now in API dashboard
  • Upgraded core infrastructure for fastest WebRTC connectivity
  • Improved processing of MP4 recorded files
  • Improved background ambient noise reduction
  • Superior support for VP8 codec in iOS 14+ devices
  • Optimized user interface for Android and iOS mobile users

Virtual Classroom Update (October 12, 2020)

 

Improvement

 

 

We have rolled out an update to our Virtual Classroom build. Below are the fixes and improvements.

  • [IMPROVEMENT] We have now drastically improved our content library for the optimum performance.
  • [IMPROVEMENT] We've now greatly lowered the CPU utilization.
  • [FIX] Color-pick pop-up disappears for users after certain actions of other users.
  • [FIX] Media player is not automatically closed for students when teacher ends class.
  • [FIX] Tooltip does not disappear if user manages to hover over it.
  • [FIX] Change tooltip for fullscreen button when fullscreen is on.
  • [FIX] Hide students' cursors if they do not have an access to board.

Virtual Classroom Patch Update (August 30, 2020)

 

Improvement

 

 

We've rolled a Virtual Classroom patch with the following fixes and improvements:

  • [IMPROVEMENT] We've added noise reduction feature to greatly improve the audio quality for Chrome and Firefox users. We haven't made any changes for Safari browser, because it doesn't support such functionality.
  • [IMPROVEMENT] We've updated enlarged mode and it looks better now.
  • [FIX] We've fixed the issue with the right panel which sometime doesn't open
  • [FIX] Board content disappears after user 'undo' the last action if copy or cut functionality was used
  • [FIX] Student can still use Select and Text tool after a tab was locked again
  • [FIX] Big videos in Enlarged mode get green borders even when small videos are not being dragged
  • [FIX] Students should not be able to use keyboard shortcuts to delete objects on the whiteboard when the tab is "unlocked" by the presenter

New Virtual Classroom Major Version Update (August 16, 2020)

 

New Feature

 

 

We have now upgraded our new Virtual Classroom build across all global datacenter locations. We are introducing some of the new and exciting features from our roadmap. There is also great improvement on the audio and video to offer superior performance.

1) Supports 10 concurrent video streams

Collaborate face-to-face with your attendees in real-time with enlarged video conference mode that now supports upto 10 concurrent video streams with automatic speaker detection. There is no limit on audio conferencing and it is based on your subscription package.

2) Improved audio/video connectivity

We have now greatly improved audio/video connectivity with much quicker connection time and overall performance improvement in larger groups.

3) Lock/unlock whiteboard for students

With this new version, Instructors can either lock or unlock whiteboard for students to meet compliance requirements. This feature is specifically designed for younger students where they do not access to all the whiteboard tools such as eraser tool but can collaborate with pen tool with the instructor and other students.

If an Instructor locks the whiteboard students will not be able to write or draw anything on the whiteboard area. Instructors need to enable unlock option for the whiteboard if he/she wishes students to write or draw on the whiteboard.

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Also, the existing whiteboard access permission for the student under the attendee list is still available. This feature can be used to promote additional instructors or moderators giving them full whiteboard access.

4) Annotate on top of screen sharing

Instructors can annotate on top on screen sharing. They can also allow students to annotate by unlocking screen share whiteboard for students.

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5) Improved document viewer and whiteboard performance

We have now improved the document viewer functionality. All uploaded contents will be processed much quickly and displayed on the whiteboard with appropriate zoom level for easy readability.

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6) Faster WebRTC connection

This version is equipped with faster WebRTC connection that enables the quick real-time communication with larger rooms that has over 500 participants and improved WARP algorithm for better congestion control and low-latency performance.

7) Optimized layout for Mobile & Tablet devices

Optimized layout to access tools quicker and maximum viewing area in tablets and mobile devices.

8) Recordings now includes uploaded audio and video files

All Audio and Video files streamed using media player from the content library inside Virtual Classroom will now appear in class recordings with the exception of for YouTube and Vimeo links shared. YouTube has changed their API and forbids playing videos on recordings, so there is no official way to bypass it.

9) Remember selected microphone and webcam devices

With this feature, the microphone and webcam devices selected in a VC session will be remembered when joining the next session.

10) Improved processing of recordings (backend)

We have now greatly improved the processing time of our 720p MP4 HD recordings for both standard and enhanced recorder options.

11) Remember the stroke & fill colors and active whiteboard tool

The active stroke and fill color selection will be remembered along with the active whiteboard tool when the browser is reloaded or when the instructor rejoin the session.

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12) New broadcast message design (for BreakRooms)

We have now changed the design of broadcast messages to all attendees in BreakRooms from the chat area.


Bug Fixes & Improvements:

We have also have fixed other minor issues listed below:

  • [FIX] Videos cannot be viewed in full screen on iOS devices
  • [FIX] Sometimes the camera icon appear to be turned on when only microphone is on
  • [FIX] Hide rotate button for documents for students with only teacher's tools access
  • [FIX] Student's screensharing is overlapped by whiteboard if student starts it without presenter
  • [FIX] Fix Audio/Video connectivity issue with Safari browser on Mac OS
  • [IMPROVEMENT] Increase text tool's initial text area in Firefox
  • [FIX] "Undo" does not work for "delete"
  • [FIX] Copying/pasting with hotkeys doesn't work after copying with context menu
  • [IMPROVEMENT] Relocate camera snapshot icon next to name over videos
  • [IMPROVEMENT] Zoom uploaded documents x2 to fit whiteboard width
  • [IMPROVEMENT] Show context menu for a selected element by long tap on mobile devices
  • [FIX] Video statistics are not calculated correctly in Safari and Mozilla
  • [FIX] "Allow attendees to control video playback" toggle doesn't work sometimes