Method and device for optimizing disk space utilization ratio in digital television time shifting

A disk space, digital TV technology, applied in electrical components, image communication, selective content distribution, etc., can solve the problem of low disk space utilization

Active Publication Date: 2013-06-26
SAMSUNG ELECTRONICS CHINA R&D CENT +1
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Problems solved by technology

[0012] The present invention provides a method and device for optimizing disk space utilization in digital TV time-shifting, so as to dynamically change th

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  • Method and device for optimizing disk space utilization ratio in digital television time shifting
  • Method and device for optimizing disk space utilization ratio in digital television time shifting
  • Method and device for optimizing disk space utilization ratio in digital television time shifting

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Embodiment Construction

[0052] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0053] The main idea of ​​the present invention is: in the process of recording a time-shifted program, if the duration of the currently recorded time-shifted program exceeds the set maximum time-shifted time, and the stream bit rate of the currently received transport stream is less than the average If the streaming bit rate is lower, delete the time-shifted program with the longest recording time to release redundant disk fragments, and overwrite the oldest time-shifted program in the current file with the newly recorded time-shifted program. Based on the above main ideas, as the bit rate of the stream becomes smaller, redundant disk fragments can be actively released, so that the disk space occupied by the time-shifted program increases or decreases w...

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Abstract

The invention provides a method and a device for optimizing the disk space utilization ratio in digital television time shifting. During recording of time shifting programs, if the duration of the time shifting program recorded currently exceeds the set maximum time shifting time, and if the stream bit rate of a transport stream received currently is lower than the average stream bit rate, time shifting programs of which the recording time is longest are deleted to release redundant disk fragmentation, and the newly-recorded time shifting program covers time shifting programs of which the recording time is longest in current files. By the aid of the method and the device, the size of the disk space occupied by time shifting programs can be changed dynamically according to the requirements, so that the problem of the low disk space utilization ratio when the disk space is not sufficient can be solved.

Description

technical field [0001] The invention relates to digital TV technology, in particular to a method and device for optimizing disk space utilization in digital TV time shifting. Background technique [0002] "Time-shifting" in digital television refers to recording a program in memory for future use. Viewers can press pause or rewind / fast forward keys at any time when watching digital TV programs, and can also select TV programs from a few days ago to watch. [0003] In the prior art, it is more common to provide the time-shifting function by Internet TV, and its main implementation is located at the server side. You can refer to the application number "200610147769.1", and the title of the invention is "A Live Server with Time-Shifting Function and Its Realization Method" The Chinese invention patent application with the application number "200510111252.2" and the Chinese invention patent application with the title of "A Method for Realizing Time-Shifting Function of Network ...

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Application Information

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IPC IPC(8): H04N21/433H04N21/4335
Inventor 俞贵涛陈海林陈斌德
Owner SAMSUNG ELECTRONICS CHINA R&D CENT
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