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Method and system capable of enabling set top box to display add-on subtitles

A technology of external subtitles and set-top boxes, applied in image communication, selective content distribution, electrical components, etc., can solve the problem that the set-top box cannot display external subtitles, achieve the effects of reducing occupation, expanding the scope of application, and improving system efficiency

Inactive Publication Date: 2013-04-24
SICHUAN JIUZHOU ELECTRIC GROUP
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for displaying external subtitles in a set-top box aiming at the technical problem that the set-top box in the prior art cannot display external subtitles

Method used

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  • Method and system capable of enabling set top box to display add-on subtitles

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Embodiment Construction

[0018] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0019] For the convenience of description, the following description is made.

[0020] UNICODE code (unicode, universal code, single code) is a character encoding used on computers. It sets a unified and unique binary code for each character in each language to meet cross-language, cross-platform Requirements for text conversion and processing.

[0021] The FreeType library is a completely open source, high-quality and portable font engine, which provides a unified interface to access multiple font format files, and supports rendering of monochrome bitmaps and anti-aliased bitmaps. Th...

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Abstract

The invention relates to the field of set top boxes, and discloses a method and a system capable of enabling a set top box to display add-on subtitles. The method and the system capable of enabling the set top box to display the add-on subtitles specifically comprises a reading module, a converting module and a displaying module, wherein the reading module is used for reading words of corresponding time in subtitles according to the current play time; the converting module is used for converting the reading words to corresponding UNICODE, then calling FreeType bank to obtain RGB (red, green, blue) formatted data of words, converting RGB formatted data to ARGB (alpha, red, green, blue) formatted data, storing to word displaying area, and finally informing displaying progress; the displaying module is used for reading ARGB formatted data when the subtitles need to be displayed, and copying the ARGB formatted data onto framebuffer to display. According to the method and the system capable of enabling the set top box to display the add-on subtitles, adopting assigning way to visit and protection of shared memory, and achieving data caching by means of the shared memory, so that copy of data is greatly reduced, and system efficiency is improved.

Description

technical field [0001] The invention relates to the field of set-top boxes, in particular to a method and system for displaying external subtitles in a set-top box. Background technique [0002] IPTV, or Interactive Network Television, is a new technology that utilizes broadband cable TV network and integrates Internet, multimedia, communication and other technologies to provide home users with various interactive services including digital television. Users can enjoy IPTV services in two ways at home: (1) computer, (2) network set-top box + ordinary TV. It can well adapt to the rapid development trend of today's network and make full and effective use of network resources. With the growth of the IPTV industry, users have higher and higher requirements for the application of IPTV network set-top boxes, and the local playback function has become a must-have function. [0003] Local playback generally needs to support the display of external subtitles. External subtitles are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/435H04N21/431
Inventor 彭友红申及
Owner SICHUAN JIUZHOU ELECTRIC GROUP
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