E-commerce, social, gaming...... The unstoppable stream of live video has disrupted one niche after another. In the present "everything can be broadcast and everyone is a host", people have higher requirements for the experience of live streaming, and the value of the video cloud supported by it has also been highlighted.
"In online video, live video traffic increased from 3% in 2016 to 13% in 2021, an increase of more than four times, making it the fastest growing source of online video traffic (source: Cisco Visual Network Index). As 5G technology matures, live streaming will penetrate into all walks of life, breaking the scope of entertainment and social interaction and becoming a production tool. Live broadcast scenes based on ultra HD, low delay and strong interaction will continue to emerge and evolve. In this trend, Jinshanyun released live video cloud 4.0 solution, a comprehensive layout of live 4.0 era." Chen Haibiao, deputy general manager of Jinshanyun CDN and Video Cloud Product Center, said when presenting the Way of Live Video Cloud Evolution in the 5G Era at the 9th Asia-Pacific Content Distribution Conference.
Chen Haibiao, deputy general manager of Jinshanyun CDN and Video Cloud Product Center
Live + Yere Jinshanyun released live video cloud 4.0 solution
With the vigorous development of the Internet, live video is rising with its richer content and more efficient way of obtaining information. Driven by technology and capital, mobile live broadcasting entered the golden development period in 2016, which became the first year of the outbreak of "Internet celebrity economy" and "mobile live broadcasting". The famous "Thousand broadcast War" witnessed the boom of live broadcasting.
Since its birth in 2005, live video broadcasting has experienced four stages. "The period from 2005 to 2013 was the 1.0 era of live broadcasting, which is also called the era of native live broadcasting. At that time, PC was the medium of live broadcasting, and there was almost no interaction between the audience and the host. 2013-2016 is the era of live broadcasting 2.0, also known as the era of traditional live broadcasting. This stage is mainly entertainment live broadcasting, which is dominated by bullet screen in terms of interaction. PC is still the mainstream live broadcasting media. 2016-2020 will be live streaming 3.0 era, live streaming content is more diversified, Lianmai interactive has become a new fashion of interaction, mobile live streaming is on the rise; With the progress of VR technology, the combination of VR and live video will become a breakthrough in the era of live streaming 4.0. Reviewing the development path of Kingsoft Cloud live video cloud, it is very consistent with the development of live video industry. At the moment when live video + the whole industry has become a trend, we release live video cloud 4.0 solution to comprehensively layout live video 4.0 era." Chen Haibiao said.
Based on the development goals of ultra-high definition, zero buffering and ultra-low delay, Jinshan Cloud provides a comprehensive layout of live video cloud from IaaS and PaaS layer services. In the IaaS layer, the edge computing platform, computing storage platform, content distribution acceleration platform, and data processing center are integrated. At the same time, the continuous action is carried out in the PaaS layer, and the systematic linkage and innovation are combined with the IaaS capabilities to ensure that the above three goals are advanced in a stable way.
Technology core Kingsoft cloud live video cloud 4.0 support
In the process of rapid development of the video industry, bandwidth and network have been enriched, and the HD experience of live video has been continuously improved, with the resolution ranging from 1k, 4k to 8k, and even to ultra-high definition. From the biological point of view, to satisfy the human eye's true immersion requires 50k resolution, which will bring great challenges to video codec and transmission.
Chen Haibiao said that in ultra-high definition, Jinshanyun integrates a variety of visual AI and high-definition coding technology, perceives the video image content through deep neural network, and optimizes subjective experience through intelligent adjustment coding, and pursues better visual experience of human eyes. In addition, Jinshan Cloud will soon release a commercially available version of KAV1, which offers a further 10 to 20 percent increase in compression over KSC265's baseline level while maintaining high definition.
Among the many factors that determine the live viewing experience -- sharpness, first screen time, and latency (also known in the industry as "buffering") -- caching is the most intolerable pain point. Jitter in any link of the entire streaming media transmission link, from the "streamer push end" to the "CDN" to the "audience pull stream end", may cause a delay.
"It is worth mentioning that Jinshanyuyun adopts intelligent scheduling, multi-stream optimization technology, protocol optimization and other multi-dimensional means in the live video to systematically improve the 're-buffering' experience of users watching the live video. Jinshanyuyun is the first cloud manufacturer in the industry to fully realize the over QUIC push stream and pull stream. In addition, Jinshanyuyun CDN also supports the live multi-stream optimization scheme. In terms of transmission protocol, the transmission efficiency is increased by 30% through the kernel optimization of TCP network. With the support of QUIC protocol, the download speed of weak network is increased by 100%. It's like driving in the fast lane on the highway. The industry is currently running out of time at 3% to 5%, and Jinshan Cloud can reduce this figure to 1% to 2%. Our goal is to make live video streaming as smooth as running water." Chen Haibiao said.
With the continuous evolution of live streaming, people's demand for real-time interaction becomes more and more intense. At present, the conventional delay of live streaming video industry is 3-5 seconds, which obviously cannot meet the requirements of live streaming as a "production tool" in the new era. Interactive scenes of live streaming will be constantly innovated, especially in the direction of immersive experience, and ultra-low time delay is a prerequisite for this trend. According to Chen Haibiao, in terms of ultra-low delay, Jinshan Cloud edge live video cloud sinks the original video processing capacity only in the cloud to edge processing, and can customize different hierarchical computing schemes and strategies for different video application scenarios. Video AI combined with edge computing can reduce the pressure of bandwidth transmission, reduce the delay of video processing to a greater extent, and greatly improve user experience.
In many important live events that attract the attention of the whole people, Jinshanyun provides high-definition and stable guarantee to customers by virtue of advanced video technology and high-quality service ability, and by using a number of self-developed technologies. At the end of the speech, Chen Haibiao said that with the continuous maturity of 5G, cloud, AI and other technologies, the content of live video will be more diversified. Relying on the existing advantages, Jinshanyun will unite with more partners and continue to explore the development of video cloud.
