Different Worlds Broadcasting: A Distributed Internet Live Broadcasting System with Video and Audio Effects

摘要

Internet live broadcasting services such as USTREAM, TwitCasting have become popular. These services give broadcasters an ability which can broadcast videos via the Internet. By adding video effects and audio effects, live streaming services can realize as if broadcasters were in a different world. In this paper, we call this kind of live streaming 'Different Worlds Broadcasting'. However if many viewers request the effect in a short period of time or use some heavy load effect, it takes much time to render those effects and the frame rate gets worse. Therefore, currently users can use only small load effects such as superimposing small firework effect on the video, adding simple echo effect on the sound. Rendering effects in a short time, users can add more effects or the frame rate cat get better. In this paper, we propose a distributed video processing system for Internet live broadcasting services with video effect and audio effect. The proposed system take a video by broadcaster's PC or smartphone and transmit it to effect servers to add various effects. Effected video stream is transmitted to the broadcast server of the Internet live broadcasting service.