A set-top box subtitle display system

Abstract

The invention provides a set top box subtitle display system, comprising a subtitle receiving module, which can be used for obtaining the size of a display buffer needed by a type subtitle and a subtitle data filtering ID via registering from the subtitle display system according to the type of subtitle firstly, filtering to obtain the corresponding subtitle data via a bottom data filter and storing the data in a circle buffer; a subtitle analyzing module, which can be used for starting a process independently to wait for analyzing the subtitle data circularly and placing the obtained subtitle data in the corresponding analyzer to analyze according to the subtitle data filtering ID; a subtitle storage module, which is used for processing the analyzed subtitle data according to a display structure so as to form subtitle data to be displayed and storing the data to be displayed in the display buffer; and a subtitle display module, which is used for starting another process independently and circularly waiting the subtitle data to be displayed. The system realizes the condition of processing multiple types of subtitles via a uniform interface and improves the display efficiency and display stability of the subtitle through a system registration management mode and a structural data process mode, and via starting an independent process display.

Description

[0001] 【Technical field】 [0002] The invention relates to a subtitle display system of a set-top box. [0003] 【Background technique】 [0004] At present, with the development of digital television, digital set-top boxes are promoted and popularized in every corner of the world. With the continuous improvement of functions, the subtitle display of the digital TV set-top box has become an indispensable part. Subtitle system technology should be born. The functions of the subtitle system include receiving subtitle data, analyzing subtitle data and storing subtitle data, and can display subtitles in time to ensure that users can watch subtitles normally and stably through set-top boxes. [0005] However, the existing set-top box generally uses a non-independent process to display subtitles in the way of subtitle data processing, which will reduce efficiency by other tasks on the set-top box, and because there are many types of subtitles, such as dvb subtitle (a subtitle that mee...

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Problems solved by technology

[0005] However, the existing set-top box generally uses a non-independent process to display subtitles in the way of subtitle data processing, which will reduce efficiency by other tasks on the set-top box, and because there are many types of subtitles, such as dvb subtitle (a subtitle that meets European standards), atsc subtitle (a kind of subtitle conforming to the American standard), etc., cause the set-top box to set up multiple interfaces (the interface is a program processing interface) for processing. The above reasons lead to problems such as low subtitle data processing efficiency of the set-top box and unstable display process.

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