Link backup system and method for multicast video stream

A link backup and code stream technology, applied in image communication, selective content distribution, electrical components, etc., can solve the problems of increasing the multicast video code stream and increasing costs, reducing coupling, improving user experience, and realizing Simple and reliable effects

CN111372144BActive Publication Date: 2021-09-28BEIJING DIGIBIRD TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2021-09-28

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Abstract

The invention belongs to the technical field of link backup, and in particular relates to a link backup system and control method and system of a multicast video code stream, aiming to solve the problem that the existing backup technology will increase the number of multicast video codes under the premise of real-time backup switching. streaming or video multicast streaming bandwidth, which leads to the problem of rising costs. The invention includes: the encoding module and the decoding module respectively configure the same multicast address for the network ports of the active and standby links; only send the group adding message and the multicast video heartbeat message, and establish an information forwarding channel; the decoding module according to the code stream The serial number is used to check and discard the code stream message; detect the status of the main and standby links, and determine the switching conditions. If the encoding process meets the conditions, the code stream sending link will be switched; Frames are switched for boundaries. The invention does not increase the cost of the core switch, realizes the link backup of the multicast code stream, and achieves automatic, real-time and seamless video switching effects.
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Description

technical field

[0001] The invention belongs to the technical field of link backup, and in particular relates to a link backup system and method for multicast video streams. Background technique

[0002] In a video fusion processing system that supports multiple compression formats, each encoding node simultaneously encodes multiple multicast video streams, including lightly compressed high-bandwidth video streams and deep compressed streams. This system is characterized by a large number of multicast code stream forwarding and high code stream bandwidth. For example, if there are 1000 coding nodes, and each node encodes 3 multicast code streams, 3000 code streams need to be forwarded concurrently in the switching network. Backup is an important means to ensure the safe, stable and uninterrupted operation of the system. In order to increase the safety and reliability of the system, it is more and more important to adopt high-efficiency and low-cost backup technology. [00...

Examples

Embodiment Construction

[0068] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, not to limit the invention. It should also be noted that, for the convenience of description, only the parts related to the related invention are shown in the drawings.

[0069] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0070] A link backup system of a multicast video code stream of the present invention, the backup system includes an encoding module and a decoding module;

[0071] The encoding module configures the same multicast address for the main link of the encoding process and the network po...