The Fast Broadcasting scheme is one of the simplest schemes that provide video services. In this scheme, the video is divided into equal-sized segments depending upon the bandwidth allocated by the video server. If th...The Fast Broadcasting scheme is one of the simplest schemes that provide video services. In this scheme, the video is divided into equal-sized segments depending upon the bandwidth allocated by the video server. If the video length is not known, then this scheme cannot be applied as the number of video segments cannot be determined. In a live video wherein the video size is unknown, especially the ending time of the live broadcast, e.g., cricket match, this scheme cannot be applied. In this paper, we propose a model that helps the Fast Broadcasting scheme to support live video broadcasting. The basic architecture of the system consists of a live system with one video channel that broadcasts the live video and a video server that broadcasts the already broadcast live video to users.展开更多
Existing broadcasting schemes provide services for the stored videos. The basic approach in these schemes is to divide the video into segments and organize them over the channels for proper transmission. Some schemes ...Existing broadcasting schemes provide services for the stored videos. The basic approach in these schemes is to divide the video into segments and organize them over the channels for proper transmission. Some schemes use segments as a basic unit, whereas the others require segments to be further divided into subsegments. In a scheme, the number of segments/subsegments depends upon the bandwidth allocated to the video by the video server. For constructing segments, the video length should be known. If it is unknown, then the segments cannot be constructed and hence the scheme cannot be applied to provide the video services. This is an important issue especially in live broadcasting applications wherein the ending time of the video is unknown, for example, cricket match. In this paper, we propose a mechanism for the conservative staircase scheme so that it can support live video broadcasting.展开更多
首先,介绍在互联网技术加成下的中、大型体育赛事直播的电子现场制作(Electronic Field Production,EFP)系统的设计与应用。然后,以安徽广播电视台“皖美山水”骑行赛直播为案例,探讨了如何在优质的网络环境下,不采用高成本的转播车、...首先,介绍在互联网技术加成下的中、大型体育赛事直播的电子现场制作(Electronic Field Production,EFP)系统的设计与应用。然后,以安徽广播电视台“皖美山水”骑行赛直播为案例,探讨了如何在优质的网络环境下,不采用高成本的转播车、卫星车,转而搭建一套安全可靠实用的EFP系统,与演播室联动,顺利完成直播。展开更多
描述一种分享Http Live Streaming流媒体,同时对服务器和播放器透明的播放器中间件HLS-Share。HLS-Share通过手机节点间的协作计算,使手机共享3G网络带宽,减少3G网络流量,加速观看Http Live Streaming流。HLS-Share采用基于事件驱动的...描述一种分享Http Live Streaming流媒体,同时对服务器和播放器透明的播放器中间件HLS-Share。HLS-Share通过手机节点间的协作计算,使手机共享3G网络带宽,减少3G网络流量,加速观看Http Live Streaming流。HLS-Share采用基于事件驱动的方法在本地P2P网络中挑选部分节点作为中继节点负责分享从Internet获取的Http Live Streaming流。通过实验验证了相比于每部手机独立使用3G网络观看视频,HLS-Share在引入极小的CPU使用率的代价下,能够实现共享带宽、加快缓存速度的作用,并且消耗的电量小于前者。展开更多
文摘The Fast Broadcasting scheme is one of the simplest schemes that provide video services. In this scheme, the video is divided into equal-sized segments depending upon the bandwidth allocated by the video server. If the video length is not known, then this scheme cannot be applied as the number of video segments cannot be determined. In a live video wherein the video size is unknown, especially the ending time of the live broadcast, e.g., cricket match, this scheme cannot be applied. In this paper, we propose a model that helps the Fast Broadcasting scheme to support live video broadcasting. The basic architecture of the system consists of a live system with one video channel that broadcasts the live video and a video server that broadcasts the already broadcast live video to users.
文摘Existing broadcasting schemes provide services for the stored videos. The basic approach in these schemes is to divide the video into segments and organize them over the channels for proper transmission. Some schemes use segments as a basic unit, whereas the others require segments to be further divided into subsegments. In a scheme, the number of segments/subsegments depends upon the bandwidth allocated to the video by the video server. For constructing segments, the video length should be known. If it is unknown, then the segments cannot be constructed and hence the scheme cannot be applied to provide the video services. This is an important issue especially in live broadcasting applications wherein the ending time of the video is unknown, for example, cricket match. In this paper, we propose a mechanism for the conservative staircase scheme so that it can support live video broadcasting.
文摘首先,介绍在互联网技术加成下的中、大型体育赛事直播的电子现场制作(Electronic Field Production,EFP)系统的设计与应用。然后,以安徽广播电视台“皖美山水”骑行赛直播为案例,探讨了如何在优质的网络环境下,不采用高成本的转播车、卫星车,转而搭建一套安全可靠实用的EFP系统,与演播室联动,顺利完成直播。
文摘描述一种分享Http Live Streaming流媒体,同时对服务器和播放器透明的播放器中间件HLS-Share。HLS-Share通过手机节点间的协作计算,使手机共享3G网络带宽,减少3G网络流量,加速观看Http Live Streaming流。HLS-Share采用基于事件驱动的方法在本地P2P网络中挑选部分节点作为中继节点负责分享从Internet获取的Http Live Streaming流。通过实验验证了相比于每部手机独立使用3G网络观看视频,HLS-Share在引入极小的CPU使用率的代价下,能够实现共享带宽、加快缓存速度的作用,并且消耗的电量小于前者。
