Method for reducing live broadcasting delay

A low-level, node-based technology, applied in image communication, selective content distribution, electrical components, etc., can solve problems such as high overall delay of live broadcast, out-of-sync video and signaling messages, affecting real-time experience of live broadcast, etc., to reduce live broadcast delay, The effect of ensuring synchronization

Inactive Publication Date: 2018-02-27
CHUANGSHENG SHILIAN DIGITAL TECH BEIJING CO LTD
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Problems solved by technology

[0003] The existing audio and video live broadcast technology has two shortcomings. First, because each module of the live broadcast system will generate a certain delay, especially the delay of the live encoding layer accounts for the vast majority, resulting in a high overall delay of the live broadcast. , affecting the real-time experience of the live broadcast; second: if other real-time signaling messages are attached to the live broadcast, there will be a problem that the video and signaling messages are out of sync. A certain lag, and this delay will become larger and larger in actual playback, which will greatly affect the live viewing experience and interactive functions

Method used

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  • Method for reducing live broadcasting delay

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Embodiment Construction

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Video coding is to use certain compression techniques to compress huge video data, thereby reducing the bandwidth consumption of transmission. The goal of video compression coding is to ensure the compression ratio of the video and the quality of the restoration, so that the compression can be achieved at a low cost.

[0022] Conventional video coding methods mainly include transform coding, entropy coding, motion estimation and motion compensation, and hybrid coding.

[0023] The main function of video coding i...

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Abstract

The invention relates to a method for reducing the live broadcasting delay. The method comprises the steps of: S1, reducing the delay of a video coder; S2, optimizing a transmission network; S3, adaptively reducing the delay of the code rate of a flow pushing terminal; and S4, optimizing the delay of a playing terminal. The method disclosed by the invention has the advantages that: after various modules of a live broadcasting system are delayed and optimized, the live broadcasting delay of the system is nearly up to the minimum in the industry; in a weak network environment, too much cumulative delay cannot be generated through the technical scheme in the invention; and thus, the synchronism of a video and an interaction message can be ensured.

Description

technical field [0001] The present invention relates to the technical field of streaming media live broadcast, in particular to a method for reducing live broadcast delay. Background technique [0002] Traditional audio and video live broadcast technologies, including audio and video capture (YUV / PCM format), encoding (H264 / AAC format), encapsulation (FLV format), streaming (RTMP protocol package), distribution (RTMP protocol package), decoding (H264 / AAC format), playback (YUV / PCM) and other modules, each module will have a certain delay. [0003] The existing audio and video live broadcast technology has two shortcomings. First, because each module of the live broadcast system will generate a certain delay, especially the delay of the live broadcast coding layer accounts for the vast majority, resulting in a high overall delay of the live broadcast. , which affects the real-time experience of the live broadcast; second: if the live broadcast is accompanied by other real-t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/2662H04N21/643H04N19/177H04N19/13H04N19/51
Inventor 李观培
Owner CHUANGSHENG SHILIAN DIGITAL TECH BEIJING CO LTD
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