//
How can streaming reach more consumers? How effective is iQIYI's star watching technology? How effective is the exploration of edge computing in live broadcasts? On July 29th, Bilibili Cloud Broadcasting Station held a special session on LiveVideoStackCon2023 Shanghai Station Architecture and Server Optimization to answer your questions.
Architecture and server-side optimization
With the rapid development of online interactive communication, collaboration, game entertainment and other scenarios of real-time audio and video technology, higher requirements are put forward for audio and video services as a whole, including stability, interaction capability, delay, and experience quality. In the process of system architecture design and evolution, technicians need to optimize and consider all aspects of audio and video codec, transmission, capability realization, and service guarantee.
TOPIC1 "Create Multi-Window" and "Decompress Flat": The Next Generation of Streaming Media is Multi-view and Panoramic Video"
Ma Gaoyang, General Manager and Head of Business Development, Tiledmedia China
The streaming media industry is inwardly involved. Enterprises not only need to consider how to stand out from the competition, but also need to consider the issue of cost reduction and efficiency increase. There are already many functions in the industry to improve user experience and optimize design, including: multi-view, VR/AR and AI, etc., but in any case, there is a certain degree of difficulty between good methods and actual user services.
From the perspective of user needs, streaming media content must be highly attractive and personalized, otherwise they are unwilling to spend time watching or buying memberships. This speech is divided into three parts. The first part explains the concept of "creating multiple windows", and then explains that the innovative Multiview multi-view solution can improve the personalization ability of streaming media. The second part explains the concept of "decompression flat", which refers to the transmission scheme of the spare slice FOV, which can give users the most immersive live broadcast experience, thereby increasing user participation. The last part is aimed at the business level: how content platforms can use the above-mentioned next-generation streaming media methods to improve KPIs and increase revenue.
TOPIC2 "Kingsoft Cloud Live Architecture Evolution and Edge Computing Scenario Exploration"
Zhu Yan Jinshan Cloud Senior Technical Expert
With the rapid development of the live broadcast business, Kingsoft Cloud's live broadcast architecture has also evolved from a simple architecture at the beginning to a gradually complex architecture. This process is full of challenges in terms of stability, performance, and quality. Especially with the simultaneous development of edge cloud and edge computing, more choices will be provided for live broadcast and its infrastructure, which pose challenges to live broadcast and edge computing services.
This sharing will be divided into three parts. The first part introduces the evolution of Kingsoft Cloud’s live broadcast architecture, and how the live broadcast architecture has completed several stages from 0 to 1 and then to 10. The second part introduces the discussion of the transmission technology introduced in the live broadcast process ; The third part introduces the combination of live broadcast and edge computing, how to strengthen the infrastructure capability and computing power flexibility of live broadcast, and provide better cost and performance experience for live broadcast.
TOPIC3 "Application Practice of Bilibili Cloud Director Station in Large-scale Live Events"
Dong Hao Bilibili Senior Development Engineer
With the rapid development of the live broadcast business of Station B, various large-scale live broadcast events have put forward higher and higher requirements for the stability and flexibility of transcoding services: in the live broadcast of large-scale events, it is necessary to solve the fluctuation and interruption of the source stream of the third party When there are problems such as transcoding and stream interruption, the experience will be reduced and the bandwidth will increase; during the live broadcast of a large-scale party, it is necessary to switch live content and insert advertisements at any time. The cloud director station system of station B has solved the above-mentioned problems well, and has been used in all large-scale live broadcast events of station B since 2021.
This sharing will be divided into three parts. The first part introduces how the live broadcast business of Station B guarantees large-scale live broadcast activities; the second part introduces the architecture and implementation of the core service cloud director platform in the live broadcast guarantee; the third part introduces In the process of continuous expansion of the live broadcast business, the cloud director broadcast station has developed specialized capabilities iteratively following the continuous growth of the business.
TOPIC4 "Application Practice of Real-time Audio and Video Technology in Watching Live Broadcast with Stars"
Shi Xingdong iQIYI Technical Director
When a new drama is released, if the actors of the drama can accompany users to watch the drama in the form of live broadcast, it will be a win-win experience for all parties. For users, they can chase stars while chasing dramas; for stars, it can have a publicity effect for themselves and the dramas they participate in; for video media platforms, it can enrich product experience and improve user experience. viscosity.
iQIYI itself already has a mature traditional video live broadcast infrastructure, which is enough to support tens of millions of concurrent live broadcast scenarios. However, in the scene of star watching, it is necessary to introduce external real-time audio and video interaction technology. How to organically combine third-party real-time audio and video interactive services with iQIYI's own infrastructure, give full play to their respective advantages, and achieve the desired effect at the lowest cost will be the main content of this sharing. This sharing will introduce the overall technical architecture of Star Accompanied Watch Live, as well as the considerations in copyright management of episodes, reuse of existing infrastructure, and high availability guarantees. In addition, some challenges encountered by the front-end in beauty integration, multi-channel audio playback, etc., and corresponding solutions will also be introduced.
▲Scan the QR code in the picture or click " Read the original text " ▲
Check out more exciting topics of LiveVideoStackCon 2023 Shanghai Station