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Method and device for self-defined SEI passthrough

A custom, SEI technology, applied in the field of video processing, can solve the problems of not supporting the custom SEI transparent transmission function, custom SEI discarding, and inability to transparently transmit

Active Publication Date: 2019-11-01
CHINANETCENT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the official ffmpeg version does not support the transparent transmission function of the custom SEI, during the transcoding process, the custom SEI is often directly discarded by the CDN cluster and cannot be transparently transmitted to the audience. Therefore, there is an urgent need for a live transcoding The method of implementing custom SEI transparent transmission in the process

Method used

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  • Method and device for self-defined SEI passthrough

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Embodiment Construction

[0065] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0066] An embodiment of the present invention provides a method for transparently transmitting a custom SEI. The execution subject of the method may be a transcoding server in a CDN cluster for transcoding live audio and video data, which may be called a CDN transcoding server. Such as figure 1 As shown, the CDN transcoding server can receive the audio and video streams uploaded by the anchor, and then use ffmpeg technology to transcode the audio and video streams into audio and video streams with different resolutions and bit rates based on the preset transcoding rules, and then convert the transcoded The audio and video streams are distributed to different viewers. Of course, in such figure 2 Under the other network architecture s...

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Abstract

The invention discloses a method and a device for self-defined SEI passthrough, and belongs to the technical field of video processing. The method comprises the following steps: receiving a target audio and video frame, analyzing the target audio and video frame to obtain a compressed data structure and a self-defined SEI, and storing the self-defined SEI in a preset data storage structure; transcoding the compressed data structure, and generating a new compressed data structure added with the self-defined SEI according to the self-defined SEI in the data storage structure; and packaging the new compressed data structure to generate a new audio and video frame, and outputting the new audio and video frame. By adopting the method and the device, the passthrough processing of the self-defined SEI can be effectively realized in the process of performing ffmpeg transcoding on the audio and video frames.

Description

technical field [0001] The present invention relates to the technical field of video processing, in particular to a method and device for transparently transmitting a custom SEI. Background technique [0002] With the development of Internet technology and the continuous increase of broadband speed, the connection between the Internet and people's lives has become increasingly close, and watching live broadcasts has become a mainstream form of entertainment. In order to improve the quality of live broadcast services, the operators of live broadcast platforms mostly provide live broadcast services based on CDN (Content Delivery Network, content distribution network) clusters, that is, the host can transmit the live audio and video data to the CDN cluster, and then the CDN clusters can use different Video parameters such as resolution and bit rate, transcode the audio and video data through ffmpeg, and distribute the transcoded audio and video data to different audiences. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/236H04N21/8547H04N21/2343H04N21/233H04N21/235
CPCH04N21/2335H04N21/234309H04N21/235H04N21/23614H04N21/8547
Inventor 陈杰吕士表
Owner CHINANETCENT TECH
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