CN104780416A - A set top box subtitle display system - Google Patents
A set top box subtitle display system Download PDFInfo
- Publication number
- CN104780416A CN104780416A CN201510118838.5A CN201510118838A CN104780416A CN 104780416 A CN104780416 A CN 104780416A CN 201510118838 A CN201510118838 A CN 201510118838A CN 104780416 A CN104780416 A CN 104780416A
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- CN
- China
- Prior art keywords
- subtitle
- display
- captions
- caption data
- data
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
- H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/488—Data services, e.g. news ticker
- H04N21/4884—Data services, e.g. news ticker for displaying subtitles
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/81—Monomedia components thereof
- H04N21/8126—Monomedia components thereof involving additional data, e.g. news, sports, stocks, weather forecasts
- H04N21/8133—Monomedia components thereof involving additional data, e.g. news, sports, stocks, weather forecasts specifically related to the content, e.g. biography of the actors in a movie, detailed information about an article seen in a video program
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Studio Circuits (AREA)
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
[technical field]
The present invention relates to a kind of Set Top Box caption display system.
[background technology]
At present, along with the development of Digital Television, top box of digital machine is promoted in each corner in the world with universal.Along with function is constantly perfect, the Subtitle Demonstration of digital TV set-top box becomes an indispensable part.Caption system technology should be given birth to, and the function of caption system comprises reception caption data, analyzes caption data and stores caption data, and can show captions in time, ensure that user can by the viewing captions of Set Top Box normal table.
But, existing Set Top Box generally adopts non-individual process to show captions to the mode of processing caption data, can be lowered efficiency by other tasks in its Set Top Box, and due to captions of a great variety, as dvbsubtitle (a kind of captions meeting European standard), atsc subtitle (a kind of captions meeting America standard) etc., cause Set Top Box to need to arrange multiple interface (described interface is routine processes interface) to process, the above-mentioned reason problem such as cause the lower and procedure for displaying of the processing caption data efficiency of Set Top Box unstable.
[summary of the invention]
The technical problem to be solved in the present invention, is to provide a kind of Set Top Box caption display system, and it can receive, processes and display caption information by stability and high efficiency.
The present invention is achieved in that
A kind of Set Top Box caption display system, described caption display system comprises:
Captions receiver module: first described captions receiver module obtains language message parameter list in Program Map Table, the captions type of captions to be shown is obtained from described language message parameter list, obtain to described caption display system registration according to described captions type: the size of display buffer needed for the type captions and caption data leaching ID, corresponding bottom data leaching device is opened according to described caption data leaching ID, then the corresponding caption data of leaching, and put into buffer circle, wait for transferring of subtitle resolving module; Described captions leaching ID is used for identification caption type;
Subtitle resolving module: described subtitle resolving module opens separately a process, and circular wait caption data is resolved, puts into corresponding resolver according to described caption data leaching ID by the caption data transferred and resolves;
Captions memory module: the caption data that described captions memory module has been resolved according to display structure process, form caption data to be shown, simultaneously, described captions memory module sends request according to the size of described required display buffer to caption display system, thus the display buffer needed for obtaining, then caption data to be shown is put into display buffer, wait to be shown;
Subtitle Demonstration module: Subtitle Demonstration module opens separately another process, the caption data that circular wait is to be shown; Described Subtitle Demonstration module is put into video card internal memory described caption data to be shown and is shown, thus completes the efficient stable procedure for displaying of Set Top Box captions.
Further, described display structure comprises captions ID, immediately show label position, pre cleaning flag bit, PTS time, duration, viewing area, background colour and foreground.
Further, first described display judges in caption data to be shown, whether show label position is true immediately, for true time just shows this caption data immediately, if flag bit is not true time, the STC time of meeting PTS time and Set Top Box compares, the threshold value being no more than setting is then defined as needing display, otherwise judges during next round poll again; When showing caption data, judge whether remove in advance screen and fill Transparent color according to pre cleaning flag bit, first needing viewing area to fill background colour during display, and then inserting caption data to be shown, then creating one and remove this caption data timer, time determined according to the duration in display structure, when timer time then, this caption data can be removed, or when exceeding captions maximum number, remove caption data the earliest, described captions maximum number is arranged as required.
Tool of the present invention has the following advantages:
The present invention is by system registry management mode, structural data processing mode and open single process display, achieve unified interface process polytype captions, possess the functions such as captions reception, analysis, storage, display, substantially increase the display efficiency of captions and the stability of Subtitle Demonstration.
[accompanying drawing explanation]
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the inventive method schematic flow sheet.
[embodiment]
Refer to Fig. 1, a kind of Set Top Box caption display system, described caption display system comprises:
Captions receiver module: first (described Program Map Table is provided by operator described captions receiver module at Program Map Table, Set Top Box real-time update) middle acquisition language message parameter list, the captions type of captions to be shown is obtained from described language message parameter list, obtain to described caption display system registration according to described captions type: the size of display buffer needed for the type captions and caption data leaching ID, corresponding bottom data leaching device is opened according to described caption data leaching ID, then the corresponding caption data of leaching, and put into buffer circle, wait for transferring of subtitle resolving module, described captions leaching ID is used for identification caption type, described bottom data leaching device is existing bottom data leaching module in Set Top Box, and for the tuner of control hardware signal, bottom data leaching device corresponding to different captions types is also different, one_to_one corresponding therebetween,
Subtitle resolving module: described subtitle resolving module opens separately a process, circular wait caption data is resolved, according to described caption data leaching ID, the caption data transferred is put into corresponding resolver to resolve, such as, described resolver comprises, the resolver of European standard captions and the resolver of America standard;
Captions memory module: the caption data that described captions memory module has been resolved according to display structure process, form caption data to be shown, simultaneously, described captions memory module sends request according to the size of described required display buffer to caption display system, thus the display buffer needed for obtaining, then caption data to be shown is put into display buffer, wait to be shown; Described display structure comprises captions ID, immediately show label position, pre cleaning flag bit, PTS time (Chinese: Presentation Time Stamp), duration, viewing area, background colour and foreground; Only can store the content of Subtitle Demonstration necessity according to display structure process, remove redundant data, reduce internal memory and use size;
Subtitle Demonstration module: Subtitle Demonstration module opens separately another process, the caption data that circular wait is to be shown; Described Subtitle Demonstration module is put into video card internal memory described caption data to be shown and is shown, thus completes the efficient stable procedure for displaying of Set Top Box captions.Particularly, first described display judges in caption data to be shown, whether show label position is true immediately, for true time just shows this caption data immediately, if flag bit is not true time, can compare with STC (Chinese: the system time) time of PTS time and Set Top Box, the threshold value being no more than setting is then defined as needing display, otherwise judges during next round poll again; When showing caption data, judge whether remove in advance screen and fill Transparent color according to pre cleaning flag bit, first needing viewing area to fill background colour during display, and then inserting caption data to be shown, then creating one and remove this caption data timer, time determined according to the duration in display structure, when timer time then, this caption data can be removed, or when exceeding captions maximum number, remove caption data the earliest, described captions maximum number is arranged as required.
Because the present invention registers to caption display system according to captions type, obtain the caption data leaching ID of caption display system, in the whole process of processing caption display, corresponding processing unit just can be found according to this caption data leaching ID, such as, bottom data filter, the resolver corresponding with caption data leaching ID, therefore, caption display system of the present invention is by the compatible multiple caption kind of system registry management mode, do not need to arrange multiple interface to process, substantially increase the efficiency of captions process;
The present invention is by system registry management mode, structural data processing mode and open single process display, achieve unified interface process polytype captions, possess the functions such as captions reception, analysis, storage, display, substantially increase the display efficiency of captions and the stability of Subtitle Demonstration.
Although the foregoing describe the specific embodiment of the present invention; but be familiar with those skilled in the art to be to be understood that; specific embodiment described by us is illustrative; instead of for the restriction to scope of the present invention; those of ordinary skill in the art, in the modification of the equivalence done according to spirit of the present invention and change, should be encompassed in scope that claim of the present invention protects.
Claims (3)
1. a Set Top Box caption display system, is characterized in that, described caption display system comprises:
Captions receiver module: first described captions receiver module obtains language message parameter list in Program Map Table, the captions type of captions to be shown is obtained from described language message parameter list, obtain to described caption display system registration according to described captions type: the size of display buffer needed for the type captions and caption data leaching ID, corresponding bottom data leaching device is opened according to described caption data leaching ID, then the corresponding caption data of leaching, and put into buffer circle, wait for transferring of subtitle resolving module; Described captions leaching ID is used for identification caption type;
Subtitle resolving module: described subtitle resolving module opens separately a process, and circular wait caption data is resolved, puts into corresponding resolver according to described caption data leaching ID by the caption data transferred and resolves;
Captions memory module: the caption data that described captions memory module has been resolved according to display structure process, form caption data to be shown, simultaneously, described captions memory module sends request according to the size of described required display buffer to caption display system, thus the display buffer needed for obtaining, then caption data to be shown is put into display buffer, wait to be shown;
Subtitle Demonstration module: Subtitle Demonstration module opens separately another process, the caption data that circular wait is to be shown; Described Subtitle Demonstration module is put into video card internal memory described caption data to be shown and is shown, thus completes the efficient stable procedure for displaying of Set Top Box captions.
2. a kind of Set Top Box caption display system according to claim 1, it is characterized in that, described display structure comprises captions ID, immediately show label position, pre cleaning flag bit, PTS time, duration, viewing area, background colour and foreground.
3. a kind of Set Top Box caption display system according to claim 2, it is characterized in that, first described display judges in caption data to be shown, whether show label position is true immediately, for true time just shows this caption data immediately, if flag bit is not true time, the STC time of meeting PTS time and Set Top Box compares, and the threshold value being no more than setting is then defined as needing display, otherwise judges during next round poll again; When showing caption data, judge whether remove in advance screen and fill Transparent color according to pre cleaning flag bit, first needing viewing area to fill background colour during display, and then inserting caption data to be shown, then creating one and remove this caption data timer, time determined according to the duration in display structure, when timer time then, this caption data can be removed, or when exceeding captions maximum number, remove caption data the earliest, described captions maximum number is arranged as required.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510118838.5A CN104780416B (en) | 2015-03-18 | 2015-03-18 | A kind of set top box caption display system |
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| CN201510118838.5A CN104780416B (en) | 2015-03-18 | 2015-03-18 | A kind of set top box caption display system |
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| CN104780416A true CN104780416A (en) | 2015-07-15 |
| CN104780416B CN104780416B (en) | 2017-09-08 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114185469A (en) * | 2021-11-15 | 2022-03-15 | 郑州佛光发电设备有限公司 | Software implementation method for setting simple GUI (graphical user interface) in menu under real-time operating system |
| CN114302215A (en) * | 2021-12-29 | 2022-04-08 | 北京奕斯伟计算技术有限公司 | Video data stream decoding system, method, electronic device, and medium |
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| US20110216242A1 (en) * | 2010-03-08 | 2011-09-08 | Nobuaki Kabuto | Linkage method of video apparatus, video apparatus and video system |
| CN103067774A (en) * | 2012-12-28 | 2013-04-24 | 四川九洲电器集团有限责任公司 | Method and system capable of enabling set top box to display add-on subtitles |
| CN103269447A (en) * | 2013-04-22 | 2013-08-28 | 深圳市视维科技有限公司 | Method for achieving multi-national languages on set top boxes |
| CN103686352A (en) * | 2013-11-15 | 2014-03-26 | 乐视致新电子科技（天津）有限公司 | Smart television media player and subtitle processing method thereof, and smart television |
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Patent Citations (5)
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| CN101483724A (en) * | 2008-01-11 | 2009-07-15 | 新奥特（北京）视频技术有限公司 | Unattended operating distributed multi-thread subtitile rendering and playing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114185469A (en) * | 2021-11-15 | 2022-03-15 | 郑州佛光发电设备有限公司 | Software implementation method for setting simple GUI (graphical user interface) in menu under real-time operating system |
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| CN104780416B (en) | 2017-09-08 |
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Inventor after: Zhang Honghui Inventor after: Chen Xiaohui Inventor after: Yuan Wei Inventor after: Shen Shaoyang Inventor before: Ye Junyong |
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