Video Conference System Architecture. Improved Architecture of PCBased Video Conferencing Without Transcoding Scalable video coding (SVC) technology allows each participant to get the picture adapted to his/her endpoint For example if the endpoint is a smartphone with a 800×480 screen the 1280×720 resolution would be excessive and so the server reduces the resolution of video streams.
A Study of Zoom’s Video Conferencing Architecture & System Design In early 2020 Zoom grew from 10 million users per day to over 300 million users per day That kind of growth requires some serious scaling and they pulled it off with minimal service disruptions Makes you wonder what technology zoom is built on!.
Video Conferencing Protocols and Common Challenges — TrueConf
According to the video conferencing giant Zoom uses 256 bit TLS encryption to protect the communications that are established by Zoom video conferencing application users The shared contents from the Zoom video conferencing users are secured using the AES256 Encryption scheme PROPOSED SYSTEM ARCHITECTURE Author Arnold Mashud Abukari Edem Kwedzo Bankas Mohammed Muniru IddrisuCited by Publish Year 2020.
A Secured Video Conferencing System Architecture using A
Video Conferencing Architecture Video Conference Server Software Scalable Video Conferencing Architecture Thanks to support for Scalable Video Coding (SVC) each conference participant receives an individual set of video streams from other participants according to the conference layout bandwidth and the endpoint’s capabilities.
System Architecture For Standard Definition Video Conference Download Scientific Diagram
A Study of Zoom’s Video Conferencing Architecture & System Design
Video Conferencing Architecture Video Conference Server
Video Conferencing Systems Architecture
MixingBased Video Conferencing Architecturemultiplexingbased Video Conferencing ArchitectureSVCbased Video Conferencing ArchitectureThe Use of Advanced Protocols and CodecsDuring a video conference the server receives streams from each participant decodes and decreases their resolution creates a new image of the required quality and resolution for each participant (as adjusted for common video conferencing challenges) encodes the stream and sends it All these stages require massive computational power delays server processing and might impair video quality as a result of recompression The scalability of such architecture is extremely low even considering its virtualization capabilities so the price of such an infrastructure is extremely high and unjustified A classic example of this architecture is a software video conferencing system such as Skype Unlike MCU video conferencing server does not recompress the video instead it creates copies of the incoming streams and sends them to other participants “as is” Thus each endpoint receives several streams in full quality and is incapable of displaying them simultaneously in original resolution The endpoint has to reduce the resolution of each incoming video stream from participants on its side or request the the other side to reduce it before sending which impairs both video quality and bandwidth requirements for all other participants This approach has one particular advantage the infrastructure is not resourcedemanding and even an ordinary PC can run hundreds of such conferences simultaneously However the disadvantages outnumber an endpoint (usually an ordinary PC) has to decode several streams simultaneously and the video server requires several times more outgoing channel This type of architecture includes all advantages of mixing approach and escapes all drawbacks of multiplexbased systems It is affordable and easily scalable and it runs on any platform thanks to advanced signal processing and data compression technologies Here’s what SVCbased architecture does an endpoint compresses its video stream in layers each additional layer comes with an increased video resolution quality and FPS If the channel between an endpoint and a video conferencing server provides high bandwidth the endpoint sends the maximum number of layers SVC stream varies by only 1520% bandwidth as compared to nonSVC stream and requires much less bandwidth than the switching approach After receiving an SVC stream with layers the video conferencing server cuts off excessive layers without transcoding by getting rid of data packages In this way it creates individual sets of streams for each participant of a group video conference on the fly in accordance with its Standard data transfer protocols are used to hold video conferences between software systems and hardware endpoints from thirdparty manufacturers 1 H239 is a communication protocol that supports two media streams from different sources It is used for conducting video conferences where the picture is displayed on two different screens (eg two screens in a meeting room one displaying the speaker and the other displaying the shared content) 2 H323 is a data transfer protocol with nonguaranteed bandwidth applied in both personal and group video conferences 3 SIP is a network protocol for connecting client applications from different vendors SIP has replaced H323 and is used in video conferencing and IP telephony Compression and playback of video and audio during a video session is carried out through the use of audio and video codecs 1 H264 is a video compression standard providing a high compression level while preserving the original quality 2 H264 Scalable Vide.