Auxiliary flow data transmission method for conference, display method, conference system and peripheral equipment
A data transmission method and peripheral equipment technology, applied in the field of conference systems and peripheral equipment, can solve problems such as consumption, multi-computer CPU performance, and adverse effects on user experience, and achieve the effect of reducing CPU usage
Inactive Publication Date: 2019-05-28
XIAMEN YEALINK NETWORK TECH
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Problems solved by technology
Although this technical solution does not require additional hardware peripherals, it needs to install specific applications on the computer and connect to the IP network at the same time. When using it, users need to ensure that they are connected to the IP network and run the applications manually, which has a negative impact on user experience. Negative Effects
Moreover, this solution is the same as the technical solution of Belgian Barco Co., Ltd., which also needs to capture and compress the computer desktop display images based on computer applications, which consumes more computer CPU performance, and the captured and transmitted displayed content It can only be the content displayed on the computer desktop, that is, copy or screenshot display, and cannot achieve extended display
Method used
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Embodiment Construction
[0027] The terms used in the present invention are defined as follows:
[0028] 1. Wireless secondary stream: In a local or remote video conference, the display interface or content on the computer is projected on a large screen or sent to a remote site for sharing. The shared content is defined as secondary stream, which means auxiliary video Streams, which are shared wirelessly, are called wireless auxiliary streams.
[0029] 2. UAC, the full English name is USB Audio Class, is a system-level USB transmission protocol.
[0030] 3. VDI, the full English name is Virtual Desktop Infrastructure, virtual desktop infrastructure. By running the operating system on the server in the data center, the computer desktop is virtualized. Storage and computing are all implemented on the server in the data center. Users connect to the virtual desktop through the client device protocol, and the user accesses their desktop as if Access to the local desktop of a traditional computer is the same.
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The invention provides an auxiliary flow data transmission method for a conference, electronic equipment is in communication connection with peripheral equipment, a virtual display device and virtualUAC equipment are virtualized on the electronic equipment, and the virtual UAC equipment is used for establishing an audio data channel between the electronic equipment and the peripheral equipment soas to obtain audio data; The method comprises the following steps: acquiring image data from an output interface of a display card of the electronic equipment, if the image data needs to be sent to avirtual display device, sending the image data or the image data and audio data to peripheral equipment, and sending the image data or the image data and the audio data to the outside by the peripheral equipment. According to the invention, compatibility of a cross-platform operation system is realized, and different display modes such as copying and expanding can be supported; And the video cardhardware coding is adopted for acceleration, so that the CPU occupancy rate is greatly reduced.
Description
Technical field [0001] The invention belongs to the technical field of video conferences, and specifically relates to a method for transmitting auxiliary stream data for a meeting, a method for displaying auxiliary stream data for a meeting, a conference system and peripheral equipment. Background technique [0002] In the meeting, it is often necessary to project the content displayed on the computer and other equipment to the screen, or to send the displayed content to the far end through the remote video conference equipment. The common practice is to use the computer’s display output interface (VGA, DVI, HDMI , DisplayPort, etc.) to transmit audio and video signals to an external display screen or video conference equipment in a wired manner. However, due to the inconsistency of computer video output interfaces, different computers may be equipped with different video output interfaces. Conference projection or auxiliary stream sending equipment needs to be equipped with diff...
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IPC IPC(8): H04N7/15H04W76/10H04L29/06H04L12/18G06F9/4401
CPCH04L12/1827H04L12/189H04L12/1818H04L12/1822H04L65/403
Inventor 廖昀
Owner XIAMEN YEALINK NETWORK TECH