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What are the technical solutions for online karaoke? What new thinking do we have for immersive XR? What technologies are needed for high-performance and low-dependency video editing? On July 29th, LiveVideoStackCon2023 Shanghai Station Client Experience and Performance Optimization will answer your questions.
Client experience and performance optimization
The client is an interface directly facing the public. With the continuous advancement of demand and technology, we need to explore and discover how to use new technologies to achieve a more perfect experience and greater value. This topic will focus on browser and mobile technology, and discuss what new possibilities the development of new technologies in terms of client user experience and performance optimization have brought to audio and video business and product development, as well as the new technologies that can be implemented and their scale. experience in practice.
Topic introduction
TOPIC1 "Tearing Songs Online K-song Experience Optimization Practice"
Cheng Le Beijing Frame Fun Technology Audio and Video Architect
Since the beginning of 2019, online real-time karaoke games have emerged, and many new requirements have been put forward that are different from live broadcasts, conferences, chat rooms, and offline karaoke scenes, such as sound quality, ear feedback, delay, real-time alignment, and so on. As an entrepreneurial team, it is a relatively big challenge how to grasp the key to the karaoke experience with limited resources and at the same time find ways to reduce costs.
This sharing will be divided into four parts. The first part introduces the technical solution selection of Tear Online K Songs, what factors are mainly considered, and what are the advantages in practice; the second part introduces which technologies Tear has tried in the iterative process The direction to optimize the experience; the third part introduces several chorus solutions, and the application attempts in tearing songs; the fourth part is a little idle, talking about how technical optimization becomes a data indicator, which is convenient for upward management, and also talks about the industry Common card room jamming phenomenon, and how to deal with it.
TOPIC2 "Exploration and Thinking of Cloud XR and Immersive Holographic Interactive Technology"
Huang Yakun Beijing University of Posts and Telecommunications Postdoctoral Fellow
This sharing will be divided into four parts. The first part introduces the status quo of immersive XR communication and interaction, including the characteristics and problem analysis of terminal-side XR and cloud-based XR. The second part introduces the exploration and research progress on lightweight WebAR, and solves the problem of providing XR communication and interactive services on the mobile Web with limited computing resources. The third part introduces the current progress on the problems of massive data fusion, real-time transmission and interaction faced by immersive holographic communication and XR interactive services. The fourth part introduces some thoughts on the new requirements and challenges of immersive cloud-based XR.
TOPIC3 "Kacha Editing High Performance and Low Dependency Development Practice"
Founder of Jinbangfei Kacha Editing Co., Ltd.
More and more users like to share videos, and ordinary users need an easy-to-use video editing tool to edit video content. The current video editing software has high requirements on hardware and requires a computer with high configuration. However, the computer configuration of many beginners is average, and they are either unusable or very laggy in use. Kacha's low dependency and high performance can edit videos very smoothly on a computer with low configuration. Click through 1. Self-developed UI framework, reducing memory usage and increasing operation fluency. 2. Minimize the use of open source modules, and improve performance through self-development. 3. Optimize the task scheduling between kernel threads, make full use of resources, and increase the corresponding speed. 4. Make full use of the capabilities of the hardware and reduce the data transfer between the CPU and GPU. 5. Combined with AIGC, drafts are automatically generated to improve editing efficiency. In this way, Kacha can edit videos very smoothly on computers more than ten years ago.
TOPIC4 "FFmpeg Live Streaming Capability Update Plan and Thoughts on SDK Use"
Liu Qikuaishou Chief Audio and Video Architect
This speech will share the update plan of FFmpeg live broadcast capability and the use of SDK. For example, FFmpeg's RTC support, FLV new codec support, and FFmpeg's SDK separately encapsulates the Porting layer, etc.
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