Multimedia development technology

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Multimedia is becoming the standard of Internet applications. With the continuous evolution of new technologies, it brings unprecedented audio-visual feelings to people. Multimedia Development Technology Salon hopes to spread the latest multimedia technology and practical experience, so that developers can control related technology more easily.

LiveVideoStack, an audio and video technology community, planned the “Multimedia Open technology Salon” to share the practice and exploration of front-line technical people. On September 9th, [LiveVideoStack Meet Beijing: Multimedia Development Technology Salon] will be held in Garage coffee, No. 48, Haidian West Street, Haidian District, Beijing. We will invite technical experts in the industry to share and communicate with each other.

Past Salon review:

April 22, Beijing: Event page review and download

June 17, Hangzhou: page review and download

June 24, Shanghai: event page review and download

July 29, Guangzhou: Event page review and download

August 5, Shenzhen: event page review and download

// About Speaker //

Speaker One

Wu Aimin senior director of Kingsoft Video Cloud

Speaker: Wu Aimin, senior director of Kingsoft Video Cloud. He is a senior expert in video technology and is known as “brother Min” by insiders. He has more than 10 years of video research and development experience and is good at video encoding and decoding, streaming media transmission and distribution and other technologies. Joined Jinshan Cloud in 2014, mainly responsible for the video cloud platform construction and project management, and led the team to guarantee the “93” military parade, the 11th launch of Shenzhou spacecraft, the live broadcast of the TWO sessions and other large live events; Before joining Jinshanyun, he successively served as the R&D technical Director of Lanxun Company and Bohui Technology, responsible for the r&d and management of video technology.

Topic: Evolution Of Business-Driven Cloud Transcoding Service Architecture

What is the positioning of transcoding service of cloud service provider? How to deal with the continuous development of business transcoding demand? This share introduce kingsoft cloud group transcoding from the original single live transcoding service, experience events live, live shows and the influence of the short video baptism, ongoing business function iteration, modular architecture evolution, finally realizes the collection of live transcoding, offline file transcoding, image processing and intelligent choice flow, shuffling and other business in one of the big.

Speaker Two

Tang Geng is in charge of iOS technology of Beijing Mijing Hefeng Technology Co., LTD

Speaker: Tang Geng, iOS technology director of Beijing Mijing Hefeng Technology Co., LTD., is in charge of the development and research of new mobile live broadcasting technologies. His current work focuses on the development and optimization of features of the host end. I have years of working experience in audio and video multimedia technology, cloud computing and system optimization.

Topic: Technological Attempt to Control The Cost of Linmac

Lianmai has become a basic function of interactive live broadcasting, but the cost of lianmai is relatively high, which puts great pressure on business. In this sharing, we will share some exploration of Huajiao live broadcasting in reducing the cost of lianmai. In addition, we will also introduce the analysis of the cost composition of Lianmai, the schemes that can be adopted to reduce the cost, and the actual effect analysis. This includes dynamically switching between BGP network and CDN to reduce network costs without users’ awareness.

Speaker Three

Q Liu FFmpeg Maintainer/ Consultant

Speaker: Liu Qi, co-founder of OnVideo, ChinaUnix senior moderator, FFmpeg Maintainer/ consultant, good at streaming media system design, distributed system development.

Topic: “Difficulties and experiences in FFmpeg Practice Development”

For every engineer engaged in audio and video technology development, will not be unfamiliar to FFmpeg, through it can complete audio and video collection, encoding and decoding, transcoding, post-processing and streaming media services and many other functions, can be said to cover the vast majority of audio and video development in the field. However, in the development process of FFmpeg will also encounter portability, audio and video raw code encapsulation, transcoding compression audio and video synchronization, multi-threaded encoding and decoding, and so on. This share will introduce the technical difficulties and some experience encountered in the practice of FFmpeg development.

Speaker Four

Liu Lianxiang is the founder and CTO of dotEngine audio and video calling cloud

Speaker: Liu Lianxiang, founder of dotEngine Audio and video call cloud, full stack engineer & product, used to work in Visual China, Guokr. 6 years of product research and development experience, 4 years of multimedia research and development experience, developed montage short video social app, founder of Volute real-time video collaboration platform, founder of play live.

Topic: “The Pits developed by WebRTC in Voice and Video Calls”

With major browsers supporting WebRTC, the development cost of real-time audio and video technology is getting lower and lower, and weBRTC-related technology is widely used. However, there is still a lot of work to be done to make WebRTC work well, such as firewall penetration, compatibility of various video codes, signaling and protocol selection, compatibility of software and hardware code of Android platform, and we also encountered various problems in the development of dotEngine. This sharing is mainly about the problems that are easy to encounter when you first get into WebRTC development and how to choose.

// Agenda //

time	The agenda
13:00 – the plague	Sign in
The plague – then	The opening
PM – 40	Tang Geng. Technical Attempts to Control Lianmai Cost
40-15:20	Evolution of Business-driven Cloud Transcoding Service Architecture. Aimin Wu
15:20 – double-break	tea
Double-break – who gives	“FFmpeg practice in the development of difficulties and experience” Liu Qi
Justice – 17:00,	The pits developed by WebRTC in voice and video calls, Lian-xiang Liu
17:00 – they	Lucky draw