Streaming video over the approaches and directions.ppt

Streaming Video over the Streaming Video over the : Approaches and : Approaches and Directions Directions Dapeng Wu, Yiwei Thomas Hou et al. Dapeng Wu, Yiwei Thomas Hou et al. Presented by: Abhishek Gupta {******@} Introduction Introduction ?? Issues in Video Streaming. Issues in Video Streaming. ?? Transmission of Real Time Video typically has Transmission of Real Time Video typically has bandwidth and delay requirements. bandwidth and delay requirements. ?? Current does not offer any QoS guarantees Current does not offer any QoS guarantees to streaming video. to streaming video. ?? For multicast it is difficult to achieve both efficiency For multicast it is difficult to achieve both efficiency and flexibility. and flexibility. Overview Overview ?? Key areas in streaming video. Key areas in streaming video. ?? pression pression –– Scalable and Scalable and Nonscalable coding. Nonscalable coding. ?? Application-layer QoS control. Application-layer QoS control. ?? Continuous media distribution services. Continuous media distribution services. ?? Streaming servers. Streaming servers. ?? Media synchronization mechanisms. Media synchronization mechanisms. ?? Protocols for streaming media. Protocols for streaming media. Architecture For Streaming Video Architecture For Streaming Video pression pression ?? Nonscalable Video Coding. Nonscalable Video Coding. Nonscalable video Encoder Nonscalable video Encoder pression(contd.) pression(contd.) ?? Scalable Video Encoding. Scalable Video Encoding. Scalable video encoder Scalable video decoder Application Requirements from Application Requirements from Encoder and Decoder Encoder and Decoder ?? Bandwidth Bandwidth –– Rate control. Rate control. ?? Delay - Buffering. Delay - Buffering. ?? Loss Loss –– Multiple description coding. Multiple description coding. ?? Video Cassette recorder like functions. Video Cassette recorder like functions. ?? plexity. plexity. Application Layer QoS Control