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Internet Speed Requirements for Video Streaming

Internet Speed Requirements for Video Streaming<br>

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Internet Speed Requirements for Video Streaming

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  1. Internet speed requirements for video streaming

  2. Introduction Video has been an important media for communications and entertainment for many decades. Movie is a form of entertainment that enacts a story by screening a series of images giving the delusion of continuous movement. The trick was already known in second-century china, but remained inquisitiveness up to the end of the 19th century. The invention of motion picture camera around 1888 allowed the individual component images to be captured and stored on a single reel. For the first time, this has made possible the process of recording scenes in an automatic manner.

  3. Architecture for video streaming Figure 1 shows architecture for video streaming and it is divided into six areas as follows: media compression, application-layer qos control, media distribution services, streaming servers, media synchronization at the receiver side, and streaming media protocols.

  4. Architecture for video streaming

  5. On-demand multimedia streaming Video on demand (vod) also known as on-demand video streaming is a great way of viewing films and television programs. Vod service enables immediate distribution of video streams to users, from the beginning of the content, regardless of the time at which the service request arrives in relation to other on-going streaming sessions. Typically, these video files are stored in a set of central video servers, and distributed through high speed communication networks to geographically-dispersed clients.

  6. On-demand multimedia streaming

  7. On-demand multimedia streaming

  8. Live video streaming In this case, the most important challenge is the play-out delay, that is to say the time elapsing between the content production and its play-out. The lone action that the client should be able to carry out is to switch channels. The end-user experience is similar to a live TV broadcast as all of the users will intend to watch the most recently generated content. The popular live video streaming service is internet protocol television (IPTV). The official definition approved by the international telecommunication union focus group on IPTV is as follows: " multimedia services such as television/video/audio/text/graphics/data delivered over IP based networks managed to provide the required level of quality of service and experience, security, interactivity and reliability."

  9. Live video streaming

  10. Challenges in P2P streaming Over the past few years, P2P networks have appeared as an auspicious method for the delivery of multimedia content over a large network. The intrinsic characteristics make the P2P model a potential candidate to solve various problems in multimedia streaming over the internet [54]. The P2P streaming is more elegant because of two reasons. First, P2P does not need support from internet routers and thereby cost effective and simple to deploy. Second, a peer simultaneously acts as a client as well as server, thus downloading a video stream and at the same time uploading it to other peers watching the program. Consequently, the P2P streaming significantly decreases the bandwidth needs of the source.

  11. Challenges in P2P streaming

  12. Bitgravity Bitgravity offers a live streaming service called BG live that enables organizations to broadcast live content over the internet to audiences around the globe. This guide provides simple, step-by-step instructions on what’s required and how to stream live with BG live, the live streaming product from bitgravity.

  13. Video coding standards Raw or uncompressed video is neither suitable for transmission nor for storage and distribution. Different bandwidth is supported by different networks. Even with good increase in the bandwidth capacity in the last decade the current transmission rates are insufficient to transmit uncompressed video in real time for applications like video conferencing and live video streaming. Similarly an uncompressed video takes more space as compared to compressed video. Video compression algorithms operate by removing redundancy in the temporal, spatial and frequency domains.

  14. Video coding standards

  15. Peer-to-peer streaming Peer-to-peer (P2P) networking is a distributed architecture in which the participating nodes share the work loads. In contrast to multicast architecture it does not require support from internet routers and network infrastructure. Each newly joined node not only downloads a portion of the content but also uploads to other peers in the network. Thus scaling becomes easy as more nodes or peers mean more resources. It has become the most popular architecture for file sharing systems like bittorrent. File sharing systems are not real time dependent as compared to applications like video streaming or broadcast that need stringent realtime deadlines to be met.

  16. Peer-to-peer streaming

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