Online VOD (video on demand) acceleration system and online VOD playing method

Abstract

The invention discloses an online VOD (video on demand) acceleration system and an online VOD playing method. The online VOD acceleration system mainly comprises a source server and a user host. The source server is an original video server or a server storing video files for video sites. The user host comprises a browser and client software runing in the user host to accelerate video. The client software is used for connecting the source server and is used for accelerated downloading and cache updating for video files by intelligent file segmenting and dynamic speed regulation, and continuously returning the video files to the browser for playing. The online VOD acceleration system further comprises a transit server used for receiving a download request from the user host, downloading the required video file from the source server and returning video data to the user host. A complete system scheme is achieved through strategies such as automatic routing, multilevel caching, intelligent segmental downloading, dynamic speed regulation and the like, so that accelerated downloading and smooth playing of online VOD are achieved.

Description

technical field [0001] The invention relates to network video download and play technology, in particular to a network video-on-demand acceleration system and a play method thereof. Background technique [0002] Network video-on-demand is one of the most popular Internet applications at present. Video playback requires high network bandwidth for users, especially for various high-definition videos that are currently popular, and requires better network conditions at the user end. When the user uses a browser to play video on demand, the default is single-threaded direct download, the loading speed is slow, the bandwidth cannot be well utilized, and the playback is often not smooth. The emergence of video acceleration technology is to solve such problems. [0003] There are already some video accelerator products on the network at present. According to the scope of use, it can be divided into two categories. One is a video accelerator specially made by some video websites...

AI Technical Summary

Problems solved by technology

These solutions cannot guarantee continuous and smooth video playback during the accelerated video download process

Because there is no reasonable file division and download strategy, it often happens that the second half of the video is downloaded but the previous part is not completed, and the sequence data of the video file from the front to the back is required during playback, which will cause playback lag: even if the overall download The speed is very fast, and it can't reach smooth playback

Part of the technical solutions based on multi-threaded downloading of files divides files into as small blocks as possible, and then downloads them sequentially from front to back. High pressure, which can also lead to denial of service

[0006] 2) Acceleration methods have certain limitations

In most cases, P2P requires network address translation (NAT) penetration, and the acceleration is limited by the data conditions of adjacent nodes. If the user is not watching a popular video, or cannot find a nearby node with the requested content, the video acceleration effect is poor; There are also some users who do not want to occupy their own bandwidth for P2P uploading for other nodes

[0007] 3) Failure to make reasonable use of the resources and bandwidth of the user host

Some existing technical solutions may completely seize the user's bandwidth during downloading (the download speed is much higher than the speed required for normal video playback), which will cause the system to occupy too much resources during this period of time and cause it to fail to respond, or there is no remaining bandwidth for supply. for web browsing, chatting, etc.

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