vidyo精品.pptVIP

Processing at the Endpoint Almost no latency added No quality degradation No dedicated network * * Good slide for poster session. Consider what to add to low cost. For Internet2, a small number of servers to tap into all the capacity. Scalability for HD. Limit will be I/O speed, not the compute power! We should build multiple Ethernet cards for scalability. Reduction of complexity now brings video to the same level of complexity of other network applications/service. Note: This slide covers our roadmap for the VidyoRouter in the next few quarters, but is what they will be buying into with the Vidyo Choice. The VidyoRouter? architecture optimizes bandwidth use, minimizes infrastructure investment and number of ports by: Floating port licenses enable reuse of ports wherever they are required. The maximum number of ports needed is equal to the maximum used at any time. No wasted ports in any location. Users utilizes the VidyoRouter closest to them so latency is reduced and bandwidth is conserved Multiparty meetings that span multiple routers will efficiently use bandwidth by consolidating inter-VidyoRouter traffic to a single stream from each group with local distribution to each endpoint. The overall benefit is that as the number of endpoints expands bandwidth savings grow over the traditional MCU architecture. * 长虹厂，跨地域， 各地办事机构，3G 接入。 * 适合各种条件下的网络接入 ADSL, Internet互联网，小区宽带，3G上网卡，无线WiFi 超强纠错能力 20%的丢包容忍度 普及率高 成本低廉 适合中国网络国情的视频会议系统 地区办事处，家庭用户，SOHU，中小企业，分支机构，海外分支 易于普及 High Reliability Channel Significant Impact Conventional Coding - AVC Scalable Coding - SVC Minor or No Impact H.264 – AVC(旧制式) ; SVC (新标准) H.264SVC 超强纠错能力 最低延迟的高清视频会议系统 * 延迟量对比 传统MCU系统架构问题 编码 解码 编码 解码 对丢包极敏感 高成本 高延误 1 2 3 X VidyoRoom? 会议室型终端 VidyoDesktop软件终端 VidyoRoom? 会议室型终端 编码 解码 编码 VidyoRouter? 视频路由器 端到端只需要一次编解码 速率匹配 – 在不同频宽发送视频至多个参与者，代码转换时亦不会产生时间延迟 自适应分辨率 – 发送视频至不同端点可配合不同的分辨率要求 故障隔离 – 个别用户的网络出现问题时，不会影响其它的与会使用者 VIDYO系统架构图 视频路由器替代传统MCU多点控制单元 VidyoRouter 视频路由器智能型应用 低延迟时间 – 几乎无延时（ 10毫秒）