Method and system for digital television program playing

Abstract

The invention discloses a method and a system for playing digital television programs, wherein the method comprises the following steps: firstly obtaining a TS stream of digital television program signals and transmitting the stream to a time shifting server, the time shifting server reads a TS stream loop in an EMS memory and generates an index document, and also stores the document in the EMS memory, a set-top box transmits a time shifting playing request, the time shifting server enters a time shifting playing state, locates the corresponding position of the TS stream document through the index document, the time shifting server transmits program signals to the set-top box to play from the corresponding position of the TS stream documents. Adopting the technical proposal of the invention, the limits that an existing only can watch through taking time or contents as the index and can not randomly skip and specially play are improved, and the more perfect time shifting television proposal is provided.

Description

technical field [0001] The invention relates to the technical field of digital television, in particular to a method and system for playing digital television programs. Background technique [0002] At present, TV broadcasting technology is mostly one-way, that is to say, the audience can watch whatever the TV station broadcasts, and the audience has no right to choose. For viewers who missed the program of the day for some reason and want to watch it again, they can only wait for the rebroadcast of the program by the TV station, or use other means to download or order the program. The disadvantage of this is that there is a large lag. For TV customers, there is currently no ideal solution. [0003] At the same time, with the development of sports, more and more people love and pay attention to sports. In a fierce football match, there will definitely be several wonderful goals. Ball, there doesn't seem to be a good way. At present, there is no time-shift TV system soluti...

AI Technical Summary

Problems solved by technology

[0005] However, these two solutions have three problems of cost, storage and experience: a STB with PVR function costs at least more than 1,000 yuan, let alone a high-end TV; streaming, if you record for 24 hours, only one channel will take up about 302400MB of storage space, not to mention multiple channels, and if you forget to stop recording, then the space of the storage device will be exhausted; To achieve continuous time shifting, it is necessary to solve the problems of segmented processing and seamless connection of programs. Further, if you want to provide special effects, you must do corresponding processing after recording a program, which will undoubtedly increase the lag , the user experience will not be very good

The disadvantage of this solution is that it requires massive storage devices, which greatly increases the deployment cost; another disadvantage is that when there are many users and the network traffic is large, it will cause network congestion and the quality of service cannot be guaranteed.

[0007] There is also a time-shifting solution based on a hybrid network of optical fiber and coaxial cable (HFC), which also requires a large amount of storage equipment. Moreover, the special effects of this system are offline, that is, after the program is recorded, the program file is processed by software. Generate index files etc. that support trick play, which invisibly increases lag with live channels

At the same time, the disk IO bottleneck is also one of the biggest shortcomings of this solution, which leads to the inability to increase the concurrency and lower overall performance.

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