CN106804011B - Method and system for loading subtitle file during video playing - Google Patents
Method and system for loading subtitle file during video playing Download PDFInfo
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- CN106804011B CN106804011B CN201710073721.9A CN201710073721A CN106804011B CN 106804011 B CN106804011 B CN 106804011B CN 201710073721 A CN201710073721 A CN 201710073721A CN 106804011 B CN106804011 B CN 106804011B
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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
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/278—Subtitling
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- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
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Abstract
The invention discloses a method and a system for loading a subtitle file during video playing, wherein the method comprises the following steps: when the WEB platform plays a video through a browser, acquiring a playing object of a current page according to a playing tag; calling a function for displaying the caption, loading and analyzing a caption file, and respectively putting time information and corresponding text information of each time period into a time array and a text array; and acquiring the current playing time information, matching the current playing time information with the time information in the time array, and reading and displaying the corresponding text information in the text array according to the matching result. The invention realizes the function of loading the plug-in caption when the WEB platform plays the VIDEO through the browser, can more flexibly edit the caption content and realize the aim of separating the caption from the VIDEO, and loads and displays the caption when the VIDEO is played by being compatible with the HBBTV OBJECT OBJECT and the HTML5VIDEO OBJECT.
Description
Technical Field
The present invention relates to the field, and in particular, to a method and system for loading a subtitle file when playing a video.
Background
With the popularization of the internet and the increase of network bandwidth, more and more people select to watch video programs through devices such as televisions, set top boxes, mobile phones, tablets, PCs and the like connected with the network and enjoy visual feasts brought by the network. As a video content provider or a video website operator, it is very necessary to display subtitles when playing videos, especially foreign videos. At present, the subtitle display mode is divided into two modes, one mode is to embed the subtitle into the video, and the subtitle is displayed without the help of other technologies when the video is played; and the other is to display the subtitles in a plug-in mode. The external hanging type display captions are also two types: one is that the player loads the plug-in caption, and the other is that the plug-in caption is loaded in the form of a webpage js plug-in.
Compared with the defects that the video definition is lost due to the embedded subtitles and the subtitle editing difficulty is high, the external subtitles have the advantages that the fonts and the sizes can be defined by users, the subtitle content can be modified freely, and the subtitle and the video can be separated. And the WEB video is played on the WEB platform through the browser to load and display the subtitles, and particularly, the integrated player in the set-top box device such as VLC, Mactong and the like does not support the function of externally hanging subtitles.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
In view of the defects of the prior art, the present invention aims to provide a method and a system for loading a subtitle file when playing a video, and aims to solve the problem that the video played by a WEB platform in the prior art does not support a plug-in subtitle.
The technical scheme of the invention is as follows:
a method for loading a subtitle file during video playing comprises the following steps:
when the WEB platform plays a video through a browser, acquiring a playing object of a current page according to a playing tag;
calling a function for displaying the caption, loading and analyzing a caption file, and respectively putting time information and corresponding text information of each time period into a time array and a text array;
and acquiring the current playing time information, matching the current playing time information with the time information in the time array, and reading and displaying the corresponding text information in the text array according to the matching result.
The method for loading the subtitle file during video playing includes the following steps of:
if the current page adopts an HTML5VIDEO tag, setting the playing object as an HTML5VIDEO object;
and if the current page adopts the HBBTV OBJECT label, setting the playing OBJECT as the HBBTV OBJECT OBJECT.
The method for loading the subtitle file during video playing comprises the following steps after the playing object of the current page is obtained:
and judging whether a subtitle path is set according to the attribute value of the playing object, if so, calling a function for displaying the subtitle, and if not, ending the process.
The method for loading the subtitle file during video playing comprises the following steps of calling a function for displaying subtitles:
judging whether a function for displaying the caption exists or not, and if so, directly calling the function; and if not, establishing a DIV layer, setting a cascading style sheet of the DIV layer according to the position of the current page, and inserting the DIV layer into the current page.
The method for loading the subtitle file during video playing comprises the following steps of obtaining current playing time information, matching the current playing time information with time information in a time array, and reading and displaying corresponding text information in a text array according to a matching result:
acquiring current playing time information at preset time intervals, and matching the current playing time information with the time information in the time array;
acquiring the identifier of the matched time array;
and reading and displaying corresponding text information in the text array according to the identification.
A system for loading a subtitle file while playing a video, comprising:
the playing object acquisition module is used for acquiring a playing object of the current page according to the playing tag when the WEB platform plays the video through the browser;
the caption loading module is used for calling a function for displaying the caption, loading and analyzing a caption file, and respectively putting the time information and the corresponding text information of each time period into a time array and a text array;
and the subtitle display module is used for acquiring the current playing time information, matching the current playing time information with the time information in the time array, and reading and displaying the corresponding text information in the text array according to the matching result.
The system for loading the subtitle file during video playing comprises the following modules:
the first setting unit is used for setting the playing object as an HTML5VIDEO object if the current page adopts an HTML5VIDEO tag;
and the second setting unit is used for setting the playing OBJECT as the HBBTV OBJECT OBJECT if the current page adopts the HBBTV OBJECT label.
The system for loading the subtitle file during video playing further comprises:
and the subtitle path judging module is used for judging whether a subtitle path is set according to the attribute value of the playing object, if so, calling a function for displaying the subtitle, and if not, ending the process.
The system for loading the subtitle file during video playing comprises a subtitle loading module, a subtitle display module and a subtitle display module, wherein the subtitle loading module specifically comprises:
a function judgment unit for judging whether a function for displaying a subtitle exists;
the direct calling unit is used for directly calling the function if the function for displaying the caption exists;
and the function creating unit is used for creating a DIV layer if a function for displaying the caption does not exist, setting a cascading style sheet of the DIV layer according to the position of the current page, and then inserting the DIV layer into the current page.
The system for loading the subtitle file during video playing comprises a subtitle display module, wherein the subtitle display module specifically comprises:
the time matching unit is used for acquiring current playing time information at preset time intervals and matching the current playing time information with the time information in the time array;
the identification acquisition unit is used for acquiring the identification of the matched time array;
and the character display unit is used for reading and displaying the corresponding character information in the character array according to the identification.
Has the advantages that: the invention realizes the function of loading the plug-in caption when the WEB platform plays the VIDEO through the browser, can more flexibly edit the caption content and realize the aim of separating the caption from the VIDEO, and loads and displays the caption when the VIDEO is played by being compatible with the HBBTV OBJECT OBJECT and the HTML5VIDEO OBJECT.
Drawings
FIG. 1 is a flowchart illustrating a method for loading a subtitle file during video playback according to a preferred embodiment of the present invention;
fig. 2 is a block diagram of a preferred embodiment of a system for loading a subtitle file when playing a video according to the present invention.
Detailed Description
The present invention provides a method and system for loading a subtitle file during video playing, and the following further describes the present invention in detail in order to make the purpose, technical scheme and effect of the present invention clearer and clearer. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a flowchart illustrating a method for loading a subtitle file when playing a video according to a preferred embodiment of the present invention, as shown in the figure, the method includes the following steps:
s1, when the WEB platform plays the video through the browser, acquiring a playing object of the current page according to the playing tag;
s2, calling a function for displaying the caption, loading and analyzing the caption file, and respectively putting the time information and the corresponding text information of each time period into a time array and a text array;
and S3, acquiring the current playing time information, matching the current playing time information with the time information in the time array, and reading and displaying the corresponding text information in the text array according to the matching result.
Js is referred to because the present invention is based on the JQuery framework.
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
In step S1, since the HTML5VIDEO OBJECT and the HBBTV OBJECT have different attributes, methods, and events, respectively, the first step of the compatible process for loading subtitles is to obtain the type of the playing OBJECT of the current page after the page loading is completed.
Specifically, the step of obtaining the playing object of the current page according to the playing tag specifically includes:
if the current page adopts an HTML5VIDEO tag, setting the playing object as an HTML5VIDEO object;
and if the current page adopts the HBBTV OBJECT label, setting the playing OBJECT as the HBBTV OBJECT OBJECT.
That is, if the current page uses the HTML5VIDEO tag to play the VIDEO, the playing object is set to be the HTML5VIDEO object; and if the video is played on the current page by adopting the HBBTV OBJECT tag, setting the playing OBJECT as the HBBTV OBJECT.
Further, after the playing object of the current page is obtained, the method further includes:
and judging whether a subtitle path is set according to the attribute value of the playing object, if so, calling a function for displaying the subtitle, and if not, ending the process.
Specifically, if the playing object is an HTML5VIDEO object, a value of the custom attribute data-subtitle needs to be obtained, and whether a subtitle path is set is determined by the value; if the playback OBJECT is an HBBTV OBJECT, the value of the attribute src of the sub tag track needs to be obtained, and whether the subtitle path is set for the playback OBJECT is determined by the value. If the subtitle path is set, a function for displaying the subtitle is called so as to display the subtitle in the following process.
If the caption path is not set in the current playing object, the caption loading technology is not started, and the flow ends.
Further, in step S2, the step of calling the function for displaying the subtitle specifically includes:
judging whether a function for displaying the caption exists or not, and if so, directly calling the function; and if not, establishing a DIV layer, setting a cascading style sheet of the DIV layer according to the position of the current page, and inserting the DIV layer into the current page.
That is, if a function for displaying subtitles already exists, it is not created.
And if the function for displaying the subtitle does not exist, creating a DIV layer using document createlement ('DIV'), setting a css style (cascading style sheet) for displaying the subtitle according to the position of the current page, and then inserting the DIV layer into the current page (body). DIV is a block level element, the contents of the DIV automatically start a new line, the line feed is the only formal representation inherent to < DIV >, and additional styles can be applied through the class or id of < DIV >.
And then asynchronously requesting to load a subtitle file (such as an SRT file) by using an AJAX technology, analyzing the obtained responseText data, and respectively putting the time and the corresponding characters of each time period into a time array and a character array. The AJAX, namely "Asynchronous JavaScript And XML" (Asynchronous JavaScript And XML), refers to a web page development technology for creating interactive web page applications.
Further, in step S3, the step of obtaining the current playing time information, matching the current playing time information with the time information in the time array, and reading and displaying the corresponding text information in the text array according to the matching result specifically includes:
acquiring current playing time information at preset time intervals, and matching the current playing time information with the time information in the time array;
acquiring the identifier of the matched time array;
and reading and displaying corresponding text information in the text array according to the identification.
Specifically, the setInterval function is used to continuously acquire the current playing time information every predetermined time (such as 1 second), and the current playing time information is matched with the time information in the time array to acquire the identifier (such as a subscript) of the matched time array, the subscript is used to read the corresponding text information in the text array, and the text information is displayed according to the duration, so that the purpose of synchronously displaying the subtitles is achieved.
Based on the above method, the present invention further provides a preferred embodiment of a system for loading a subtitle file when playing a video, as shown in fig. 2, which includes:
a playing object obtaining module 100, configured to obtain a playing object of a current page according to a playing tag when a WEB platform plays a video through a browser;
the caption loading module 200 is configured to call a function for displaying a caption, load and analyze a caption file, and put time information and corresponding text information of each time period into a time array and a text array, respectively;
and the subtitle display module 300 is configured to obtain current playing time information, match the current playing time information with the time information in the time array, and read and display corresponding text information in the text array according to a matching result.
Further, the playing object obtaining module 100 specifically includes:
the first setting unit is used for setting the playing object as an HTML5VIDEO object if the current page adopts an HTML5VIDEO tag;
and the second setting unit is used for setting the playing OBJECT as the HBBTV OBJECT OBJECT if the current page adopts the HBBTV OBJECT label.
Further, the system further comprises:
and the subtitle path judging module is used for judging whether a subtitle path is set according to the attribute value of the playing object, if so, calling a function for displaying the subtitle, and if not, ending the process.
Further, the subtitle loading module 200 specifically includes:
a function judgment unit for judging whether a function for displaying a subtitle exists;
the direct calling unit is used for directly calling the function if the function for displaying the caption exists;
and the function creating unit is used for creating a DIV layer if a function for displaying the caption does not exist, setting a cascading style sheet of the DIV layer according to the position of the current page, and then inserting the DIV layer into the current page.
Further, the subtitle display module 300 specifically includes:
the time matching unit is used for acquiring current playing time information at preset time intervals and matching the current playing time information with the time information in the time array;
the identification acquisition unit is used for acquiring the identification of the matched time array;
and the character display unit is used for reading and displaying the corresponding character information in the character array according to the identification.
The technical details of the above module unit have been described in the foregoing method, and thus are not described again.
In conclusion, the invention realizes the function of loading the plug-in caption when the WEB platform plays the VIDEO through the browser, can more flexibly edit the caption content and realize the aim of separating the caption from the VIDEO, and loads and displays the caption when the invention is compatible with the HBBTV OBJECT OBJECT and the HTML5VIDEO OBJECT to play the VIDEO.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (4)
1. A method for loading a subtitle file during video playing is characterized by comprising the following steps:
when the WEB platform plays a video through a browser, acquiring a playing object of a current page according to a playing tag;
calling a function for displaying the caption, loading and analyzing a caption file, and respectively putting time information and corresponding text information of each time period into a time array and a text array;
acquiring current playing time information, matching the current playing time information with the time information in the time array, and reading and displaying corresponding text information in the text array according to a matching result;
the step of obtaining the playing object of the current page according to the playing tag specifically includes:
if the current page adopts an HTML5VIDEO tag, setting the playing object as an HTML5VIDEO object;
if the current page adopts an HBBTV OBJECT label, setting the playing OBJECT as an HBBTV OBJECT OBJECT;
the HTML5VIDEO and HBBTV OBJECT respectively have different attributes, methods and events, so the compatible processing of subtitle loading comprises the first step of obtaining the type of a playing OBJECT of the current page after the page loading is finished;
judging whether a subtitle path is set according to the attribute value of the playing object, if so, calling a function for displaying the subtitle, and if not, ending the process;
if the playing object is an HTML5VIDEO object, acquiring a value of a custom attribute data-subtitle, and judging whether a subtitle path is set or not according to the value;
if the playing OBJECT is an HBBTV OBJECT OBJECT, acquiring the value of the attribute src of the sub-tag track, and judging whether a subtitle path is set for the playing OBJECT according to the value;
if the subtitle path is set, calling a function for displaying the subtitle so as to display the subtitle in the following process;
the method comprises the steps of obtaining current playing time information, matching the current playing time information with time information in a time array, and reading and displaying corresponding text information in a text array according to a matching result, wherein the steps specifically comprise:
acquiring current playing time information at preset time intervals, and matching the current playing time information with the time information in the time array;
acquiring the identifier of the matched time array;
reading and displaying corresponding text information in the text array according to the identification;
the step of calling the function for displaying the subtitle specifically includes:
judging whether a function for displaying the caption exists or not, and if so, directly calling the function; if not, establishing a DIV layer, setting a cascading style sheet of the DIV layer according to the position of the current page, and inserting the DIV layer into the current page;
loading a caption file through an AJAX asynchronous request, analyzing the obtained responseText data, and respectively putting the time of each time period and the corresponding characters into a time array and a character array;
and loading the subtitles based on the JQuery framework.
2. The method for loading a subtitle file when playing a video according to claim 1, wherein obtaining the playing object of the current page further comprises:
and judging whether a subtitle path is set according to the attribute value of the playing object, if so, calling a function for displaying the subtitle, and if not, ending the process.
3. A system for loading a subtitle file while playing a video, comprising:
the playing object acquisition module is used for acquiring a playing object of the current page according to the playing tag when the WEB platform plays the video through the browser;
the caption loading module is used for calling a function for displaying the caption, loading and analyzing a caption file, and respectively putting the time information and the corresponding text information of each time period into a time array and a text array;
the caption display module is used for acquiring the current playing time information, matching the current playing time information with the time information in the time array, and reading and displaying the corresponding text information in the text array according to the matching result;
the playing object obtaining module specifically includes:
the first setting unit is used for setting the playing object as an HTML5VIDEO object if the current page adopts an HTML5VIDEO tag;
a second setting unit, setting the playing OBJECT as an HBBTV OBJECT OBJECT if the current page adopts an HBBTV OBJECT label;
the HTML5VIDEO and HBBTV OBJECT respectively have different attributes, methods and events, so the compatible processing of subtitle loading comprises the first step of obtaining the type of a playing OBJECT of the current page after the page loading is finished;
judging whether a subtitle path is set according to the attribute value of the playing object, if so, calling a function for displaying the subtitle, and if not, ending the process;
if the playing object is an HTML5VIDEO object, acquiring a value of a custom attribute data-subtitle, and judging whether a subtitle path is set or not according to the value;
if the playing OBJECT is an HBBTV OBJECT OBJECT, acquiring the value of the attribute src of the sub-tag track, and judging whether a subtitle path is set for the playing OBJECT according to the value;
if the subtitle path is set, calling a function for displaying the subtitle so as to display the subtitle in the following process;
the subtitle display module specifically comprises:
the time matching unit is used for acquiring current playing time information at preset time intervals and matching the current playing time information with the time information in the time array;
the identification acquisition unit is used for acquiring the identification of the matched time array;
the character display unit is used for reading and displaying corresponding character information in the character array according to the identification;
the subtitle loading module specifically comprises:
a function judgment unit for judging whether a function for displaying a subtitle exists;
the direct calling unit is used for directly calling the function if the function for displaying the caption exists;
the function creating unit is used for creating a DIV layer if a function for displaying the caption does not exist, setting a cascading style sheet of the DIV layer according to the position of the current page, and then inserting the DIV layer into the current page;
loading a caption file through an AJAX asynchronous request, analyzing the obtained responseText data, and respectively putting the time of each time period and the corresponding characters into a time array and a character array;
and calling the subtitles based on the JQuery framework.
4. The system for loading a subtitle file when playing a video according to claim 3, further comprising:
and the subtitle path judging module is used for judging whether a subtitle path is set according to the attribute value of the playing object, if so, calling a function for displaying the subtitle, and if not, ending the process.
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| CN112055262B (en) * | 2020-08-11 | 2022-10-21 | 视若飞信息科技(上海)有限公司 | Method and system for displaying network streaming media subtitles |
| CN112752156A (en) * | 2020-12-28 | 2021-05-04 | 海信视像科技股份有限公司 | Subtitle adjusting method and display device |
| CN113127785A (en) * | 2021-05-18 | 2021-07-16 | 深圳Tcl新技术有限公司 | Subtitle processing method, subtitle processing device, computer equipment and storage medium |
| CN114640874A (en) * | 2022-03-09 | 2022-06-17 | 湖南国科微电子股份有限公司 | Subtitle synchronization method and device, set top box and computer readable storage medium |
| CN115190364A (en) * | 2022-06-30 | 2022-10-14 | 青岛优云智联科技有限公司 | Method for defining video knowledge on-demand playing entry and controlling playing in website |
| CN117336563A (en) * | 2023-10-23 | 2024-01-02 | 书行科技(北京)有限公司 | Externally hung subtitle display method and related products |
| CN117319738B (en) * | 2023-12-01 | 2024-03-08 | 飞狐信息技术（天津）有限公司 | Subtitle delay method and device, electronic equipment and storage medium |
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