Auxiliary stream data transmission method and system, storage medium and terminal equipment

A data transmission method and secondary streaming technology, which is applied in image data processing, two-way working systems, video conferencing systems, etc., can solve problems such as large bandwidth occupation, low transmission display frame rate, and probabilistic image blurring, so as to reduce chip costs , optimize the transmission bandwidth, and reduce the effect of delay

Pending Publication Date: 2021-04-23
XIAMEN YEALINK NETWORK TECH
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AI Technical Summary

Problems solved by technology

In the past, H264 encoding or MJPG full-frame encoding is generally used for the transmission and display of the auxiliary stream, but H264 encoding has the problem of probabilistic image blurring due to packet loss in poor network environments, and MJPEG encoding has the problem of probabilistic image blurring due to large bandwidth occupation. The transmission display frame rate is not high

Method used

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  • Auxiliary stream data transmission method and system, storage medium and terminal equipment
  • Auxiliary stream data transmission method and system, storage medium and terminal equipment
  • Auxiliary stream data transmission method and system, storage medium and terminal equipment

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Embodiment Construction

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0038] It should be noted that the numbering of the steps in the text is only for the convenience of explanation of the specific embodiments, and does not serve as a function of limiting the execution order of the steps. The method provided in this embodiment may be executed by a relevant server, and the description below takes the server as an execution subject as an example.

[0039] The auxiliary stream data transmission method provided by this application can b...

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Abstract

The invention discloses an auxiliary stream data transmission method and system, a storage medium and terminal equipment. The method comprises the following steps: auxiliary stream receiving equipment sends received dynamic region coded data to a client; wherein the dynamic region coded data is obtained by coding a local region of a dynamic image by the auxiliary flow source through adoption of an MJPG dynamic region coding protocol; and the client splices and reconstructs the decoded dynamic region coded data and a background image through a GPU to obtain an auxiliary stream image frame, and transmits the auxiliary stream image frame to corresponding conference software through a virtual Camera driver for display. The MJPG transmission bandwidth is optimized by adopting dynamic region MJPG coding, hardware resources of Mini PC in a conference system are reasonably utilized, the chip cost of auxiliary stream receiving equipment is reduced, and a transmission link only needs to be subjected to MJPG coding and decoding once, so that the delay of an auxiliary stream transmission link is effectively reduced, and the auxiliary stream experience of a user is improved.

Description

technical field [0001] The present invention relates to the technical field of video conferencing, and in particular to a data transmission method and system for an auxiliary stream, a computer-readable storage medium, and a terminal device. Background technique [0002] In a MiniPC-based video conferencing system, the auxiliary stream data is the same as the mainstream data, and is generally enumerated as a standard UVC Camera device through USB. Conference software such as Teams obtains the auxiliary stream data by selecting the camera as the input source of the auxiliary stream. And send it to the remote end to achieve the function of local auxiliary stream sharing. In the past, H264 encoding or MJPG full-frame encoding is generally used for the transmission and display of the auxiliary stream, but H264 encoding has the problem of probabilistic image blurring due to packet loss in poor network environments, and MJPEG encoding has the problem of probabilistic image blurrin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/15H04N19/172H04N19/187G06T3/40
Inventor 林文辉
Owner XIAMEN YEALINK NETWORK TECH
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