CN111818280A - DVB subtitle customizing system and subtitle customizing method - Google Patents
DVB subtitle customizing system and subtitle customizing method Download PDFInfo
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- CN111818280A CN111818280A CN202010662222.5A CN202010662222A CN111818280A CN 111818280 A CN111818280 A CN 111818280A CN 202010662222 A CN202010662222 A CN 202010662222A CN 111818280 A CN111818280 A CN 111818280A
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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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- 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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/239—Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests
- H04N21/2393—Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests involving handling client requests
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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
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
- H04N21/4343—Extraction or processing of packetized elementary streams [PES]
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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
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
- H04N21/4345—Extraction or processing of SI, e.g. extracting service information from an MPEG stream
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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
Abstract
The embodiment of the application discloses a DVB (digital video broadcasting) subtitle customizing system and a subtitle customizing method, wherein the method is applied to a subtitle system, the system comprises a server side and a plurality of client sides, and the method comprises the following steps: receiving subtitle request information sent by a client through a server, wherein the subtitle request information comprises an analysis parameter and a customization parameter of a subtitle; the server receives the code stream uploaded by the client, analyzes the code stream according to the analysis parameters and acquires bitmap data of the subtitles; the server side identifies the bitmap data through an OCR identification technology to obtain character information of the subtitles; the server side customizes the character information according to the customization parameters; the server sends the customized text information to the client, so that the problem that the information in the subtitle can not be customized according to the user requirements is solved, the user requirements are met, and the user experience and the customer satisfaction are improved.
Description
Technical Field
The present application relates to the field of DVB subtitle technologies, and in particular, to a DVB subtitle customizing system and a subtitle customizing method.
Background
A powerful caption system is defined in the DVB specification for providing caption services in the DVB digital television broadcasting system. The conventional set-top box generally analyzes the caption data according to the DVB specification, and the display information of the caption is defined by the system and cannot be extracted and used in an extended manner according to the user requirements. For example, only subtitles in english are available in a program, but many viewers in the arabic country do not recognize english, which greatly affects the user experience.
Disclosure of Invention
The embodiment of the application provides a DVB subtitle customizing system and a subtitle customizing method, which solve the problem that information in subtitles can not be customized according to user requirements.
In view of this, a first aspect of the present application provides a DVB subtitle customizing method, which is applied to a subtitle system, where the system includes a server and a plurality of clients, and the method includes:
the server receives subtitle request information sent by the client, wherein the subtitle request information comprises resolution parameters and customization parameters of subtitles;
the server receives the code stream uploaded by the client, analyzes the code stream according to the analysis parameters and acquires bitmap data of the subtitles;
the server identifies the bitmap data through an OCR (optical character recognition) technology to obtain character information of the subtitles;
the server side customizes the character information according to the customization parameters;
and the server side sends the customized text information to the client side.
Preferably, the customization parameters include translation parameters;
the server side customizes the character information according to the customization parameters specifically as follows:
and the server side customizes and translates the character information according to the translation parameters in the customization parameters.
Preferably, the customization parameters include font parameters;
the server side customizes the character information according to the customization parameters specifically as follows:
and the server customizes and changes the font of the text information according to the font parameters in the customization parameters.
Preferably, the subtitle request information further includes program uniqueness information;
the server side enables the clients with the same uniqueness information to form a subtitle resource group, one client in the subtitle resource group is selected as a main client, and other clients are selected as standby clients;
before the server receives the code stream uploaded by the client, the method further comprises the following steps:
the server side judges whether the client side is a main client side or not, and if yes, the server side informs the main client side of uploading code streams;
and if the code stream uploading of the main client fails, one of the standby clients is informed to upload the code stream.
Preferably, the uniqueness information includes at least one of a satellite angle, a frequency point frequency, a frequency point symbol rate, a SID of the program, and a PID of a TS code stream of the program.
Preferably, the font parameters include font style information, font size information, font color information, or keyword information.
Preferably, before the server sends the processed text message to the client, the method further includes:
and the server embeds preset advertisement data in the text information containing the keywords according to the keyword information.
A second aspect of the present application provides a DVB subtitle customizing system, including a server and a plurality of clients, where the server includes:
the communication module is used for receiving subtitle request information sent by the client, wherein the subtitle request information comprises resolution parameters and customization parameters of subtitles;
the analysis module is used for receiving the code stream uploaded by the client, analyzing the code stream according to the analysis parameters and acquiring bitmap data of the subtitles;
the recognition module is used for recognizing the bitmap data through an OCR recognition technology to obtain the character information of the subtitles;
the customizing module is used for customizing the text information according to the customizing parameters;
the communication module is also used for sending the customized text information to the client.
Preferably, the customization parameters comprise a translation parameter and a font parameter; the customization module comprises a translation submodule and/or a font submodule;
the translation submodule is used for customizing and translating the character information according to the translation parameters in the customization parameters;
and the font submodule is used for customizing and changing the font of the character information according to the font parameters in the customized parameters.
Preferably, the subtitle request information further includes program uniqueness information;
the server side enables the clients with the same uniqueness information to form a subtitle resource group, one client in the subtitle resource group is selected as a main client, and other clients are selected as standby clients;
the server side further comprises:
the judging module is used for judging whether the client is a main client or not, and if so, informing the main client of uploading the code stream;
and the switching module is used for notifying one of the standby clients of uploading the code stream when the main client fails to upload the code stream.
According to the technical scheme, the embodiment of the application has the following advantages:
in the embodiment of the application, a DVB subtitle customizing method is provided, wherein subtitle request information sent by a client side is received through a server side, and the subtitle request information comprises an analysis parameter and a customizing parameter of a subtitle; the server receives the code stream uploaded by the client, analyzes the code stream according to the analysis parameters and acquires bitmap data of the subtitles; the server side identifies the bitmap data through an OCR identification technology to obtain character information of the subtitles; the server side customizes the character information according to the customization parameters; the server sends the customized text information to the client, so that the problem that the information in the subtitle can not be customized according to the user requirements is solved, the user requirements are met, and the user experience and the customer satisfaction are improved.
Drawings
Fig. 1 is a system architecture diagram of a DVB subtitle customization system according to an embodiment of the present application;
fig. 2 is a flowchart of a method for customizing DVB subtitles according to a first embodiment of the present application;
fig. 3 is a flowchart of a method for customizing DVB subtitles according to a second embodiment of the present application.
Detailed Description
In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be understood that the present application is applied to a DVB caption customizing system, please refer to fig. 1, where fig. 1 is a system architecture diagram of a DVB caption customizing system according to an embodiment of the present application, as shown in fig. 1, where fig. 1 includes a server 300 and a plurality of clients 400.
In consideration of the fact that in a DVB digital television system, a user can encounter the situation that caption languages and font formats do not conform to the watching habits of the user when watching DVB programs, the DVB caption customizing method provided by the application enables DVB captions to be customized according to the requirements of a client, and improves user experience and customer satisfaction.
For easy understanding, please refer to fig. 2, fig. 2 is a flowchart of a method for customizing a DVB subtitle according to a first embodiment of the present application, and as shown in fig. 2, the method specifically includes:
It can be understood that the client sends the subtitle request information to the server, and the subtitle request information should carry parsing parameters and customization parameters of the subtitle, so as to parse and customize the subtitle.
And 102, the server receives the code stream uploaded by the client, analyzes the code stream according to the analysis parameters, and acquires bitmap data of the subtitle.
It can be understood that, after the client uploads the TS stream or the PES stream (collectively referred to as a code stream), the server may parse the bitmap information of the DVB subtitle according to the code stream.
And 103, recognizing the bitmap data by the server through an OCR (optical character recognition) technology to obtain character information of the subtitles.
It can be understood that after the bitmap information of the DVB subtitles is acquired, the DVB bitmap data can be recognized as the text information through the OCR recognition technology.
And 104, customizing the text information by the server according to the customization parameters.
It can be understood that, after the text information of the subtitle is obtained, the server can easily customize the text information according to the customization parameters of the client, including but not limited to translation into other languages, text beautification, keyword highlighting, keyword matching advertisement, and the like.
And 105, the server sends the customized text information to the client.
It can be understood that the customized subtitles are sent to the client, so that the client can display the subtitles conveniently. Because the customized subtitles meet the requirements of users, the user experience and the customer satisfaction can be improved.
The DVB subtitle customizing method provided by the embodiment of the application receives subtitle request information sent by a client through a server, wherein the subtitle request information comprises an analysis parameter and a customizing parameter of a subtitle; the server receives the code stream uploaded by the client, analyzes the code stream according to the analysis parameters and acquires bitmap data of the subtitles; the server side identifies the bitmap data through an OCR identification technology to obtain character information of the subtitles; the server side customizes the character information according to the customization parameters; the server sends the customized text information to the client, so that the problem that the information in the subtitle can not be customized according to the user requirements is solved, the user requirements are met, and the user experience and the customer satisfaction are improved.
A second embodiment of the present application provides a method for customizing a DVB subtitle, please refer to fig. 3, where fig. 3 is a flowchart of a method for customizing a DVB subtitle according to the second embodiment of the present application, and as shown in fig. 3, the method specifically includes:
It should be noted that step 201 is similar to step 101 in the first embodiment, but the customization parameters are further defined, including the translation parameters and/or the font parameters. For convenience of description, in the embodiment of the present application, both the translation parameter and the font parameter are embodied, and actually, both may be implemented simultaneously, or only one of them may be implemented. It should be noted that, the customization parameters include, but are not limited to, translation parameters and font parameters, and the embodiments of the present application only provide two realizations, and other parameters pertaining to the customization of subtitles are also covered in the protection scope of the present application.
And 202, the server receives the code stream uploaded by the client, analyzes the code stream according to the analysis parameters, and acquires bitmap data of the caption.
It should be noted that step 202 is the same as step 102 in the first embodiment, and is not described here again.
And step 203, the server identifies the bitmap data through an OCR (optical character recognition) technology to obtain the character information of the subtitles.
It should be noted that step 203 is the same as step 103 in the first embodiment, and is not described here again.
And 204, customizing and translating the text information by the server according to the translation parameters in the customization parameters.
It should be noted that the identified caption text information is translated into corresponding language text according to the translation information such as the translation and translation language parameters determined in the caption request information of the client.
And step 205, the server customizes and changes the font of the text information according to the font parameters in the customization parameters.
It should be noted that the font parameters may include font information, font size information, or keyword information, and the server may change the font style, font size, font color, and the like of the font according to the font parameters, and may perform operations such as bolding, font enlarging, and color deepening on the keywords in the subtitle. Further, the keywords may also be used for advertisement matching, specifically: and the server embeds preset advertisement data in the text information containing the keywords according to the keyword information.
And step 206, the server side sends the customized text information to the client side.
It should be noted that step 206 is the same as step 105 in the first embodiment, and is not described herein again.
A third embodiment of the present application provides a method for customizing a DVB subtitle, which adds program uniqueness information to the subtitle request information on the basis of the first and second embodiments. Specifically, the unique information includes at least one of a Satellite Angle (Satellite Angle) of the program, a frequency point frequency (TP Freq), a frequency point Symbol Rate (Symbol Rate), a sid (service id) of the program, and a pid (sub pid) of a TS code stream. And marking the uniqueness of the program through the uniqueness information, and requesting a client of the same program subtitle to form a subtitle resource group.
And the server side forms the client sides with the same uniqueness information into a caption resource group, and selects one client side in the caption resource group as a main client side and other client sides as standby client sides.
It can be understood that, in a subtitle resource group, according to conditions such as a network state, a region and the like, one client upload code stream is selected as a main stream, and another one or more client upload code streams are selected as standby streams. When the main stream is abnormal, the server automatically switches one of the standby streams into the main stream, and then wakes up a client to upload a code stream as the standby stream.
Before step 102 of the first embodiment or step 202 of the second embodiment, the method further includes:
the server side judges whether the client side is a main client side or not, and if so, the server side informs the main client side of uploading the code stream;
and if the main client fails to upload the code stream, one of the standby clients is informed to upload the code stream.
It can be understood that, because a plurality of clients watch the same program at the same time, the server side adopts a main-standby flow mechanism, only a few clients are informed to upload code streams, and other clients do not need to upload and only receive results returned by the server. Thus, the server flow and the resource consumption of analysis operation are greatly reduced.
A second aspect of the present application provides a DVB subtitle customizing system, please refer to fig. 1, which includes a server 300 and a plurality of clients 400, where the server 300 includes:
a communication module 301, configured to receive subtitle request information sent by a client, where the subtitle request information includes parsing parameters and customization parameters of a subtitle;
the parsing module 302 is configured to receive the code stream uploaded by the client, parse the code stream according to the parsing parameters, and obtain bitmap data of the subtitles;
the recognition module 303 is configured to recognize the bitmap data through an OCR recognition technology to obtain text information of a subtitle;
the customizing module 304 is used for customizing the text information according to the customizing parameters;
the communication module 301 is further configured to send the customized text message to the client.
It should be noted that the communication module 401 is responsible for performing data interaction with the client 400, the client 400 sends a request to the server 300, the server 300 receives the request and the code stream data, and returns the caption text information result to the client 400 after processing such as parsing, identification, translation and the like.
Further, the customization parameters comprise translation parameters and/or font parameters; customization module 304 includes a translation submodule 3041 and a font submodule 3042;
the translation submodule 3041 is configured to perform customized translation on the text information according to the translation parameters in the customized parameters.
The font submodule 3042 is configured to customize and change the font of the text information according to the font parameters in the customization parameters.
Furthermore, the caption request information also comprises the uniqueness information of the program;
the server 300 makes the clients 400 with the same uniqueness information form a subtitle resource group, and selects one client 400 in the subtitle resource group as a main client and the other clients as standby clients;
the server 300 further includes:
a determining module 305, configured to determine whether the client is a host client, and if so, notify the host client of uploading the code stream;
the switching module 306 is configured to notify one of the standby clients of uploading the code stream when the primary client fails to upload the code stream.
Further, the font parameters include font information, font size information, font color information, or keyword information, and the server 300 further includes:
and the advertisement module 307 is configured to embed preset advertisement data in the text information containing the keyword according to the keyword information.
The DVB caption customizing system provided by the embodiment of the application can identify the DVB caption bitmap, acquire the caption character information, and perform extended use including but not limited to translation into other languages, character beautification, keyword highlighting, keyword matching advertisements and the like, so that the user experience and the customer satisfaction can be improved.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the module described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
It should be understood that in the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" for describing an association relationship of associated objects, indicating that there may be three relationships, e.g., "a and/or B" may indicate: only A, only B and both A and B are present, wherein A and B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of single item(s) or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules is merely a logical division, and in actual implementation, there may be other divisions, for example, multiple modules or components may be combined or integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.
The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical modules, may be located in one place, or may be distributed on a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In addition, functional modules in the embodiments of the present application may be integrated into one processing module, or each of the modules may exist alone physically, or two or more modules are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode.
The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. A DVB subtitle customizing method is applied to a subtitle system, the system comprises a service end and a plurality of client ends, and the method comprises the following steps:
the server receives subtitle request information sent by the client, wherein the subtitle request information comprises resolution parameters and customization parameters of subtitles;
the server receives the code stream uploaded by the client, analyzes the code stream according to the analysis parameters and acquires bitmap data of the subtitles;
the server identifies the bitmap data through an OCR (optical character recognition) technology to obtain character information of the subtitles;
the server side customizes the character information according to the customization parameters;
and the server side sends the customized text information to the client side.
2. The DVB caption customization method according to claim 1, wherein the customization parameters include translation parameters;
the server side customizes the character information according to the customization parameters specifically as follows:
and the server side customizes and translates the character information according to the translation parameters in the customization parameters.
3. The DVB caption customization method according to claim 1, wherein the customization parameters include font parameters;
the server side customizes the character information according to the customization parameters specifically as follows:
and the server customizes and changes the font of the text information according to the font parameters in the customization parameters.
4. The DVB caption customizing method according to claim 1, wherein the caption request information further includes program uniqueness information;
the server side enables the clients with the same uniqueness information to form a subtitle resource group, one client in the subtitle resource group is selected as a main client, and other clients are selected as standby clients;
before the server receives the code stream uploaded by the client, the method further comprises the following steps:
the server side judges whether the client side is a main client side or not, and if yes, the server side informs the main client side of uploading code streams;
and if the code stream uploading of the main client fails, one of the standby clients is informed to upload the code stream.
5. The DVB subtitle customizing method of claim 4, wherein the uniqueness information comprises at least one of a satellite angle, a frequency point frequency, a frequency point symbol rate, a SID of a program, and a PID of a TS code stream of the program.
6. The DVB subtitle customizing method according to claim 3, wherein the font parameter includes font style information, font size information, font color information, or keyword information.
7. The DVB subtitle customizing method according to claim 6, wherein before the server sends the processed text message to the client, the method further comprises:
and the server embeds preset advertisement data in the text information containing the keywords according to the keyword information.
8. A DVB caption customizing system is characterized by comprising a service end and a plurality of client ends, wherein the service end comprises:
the communication module is used for receiving subtitle request information sent by the client, wherein the subtitle request information comprises resolution parameters and customization parameters of subtitles;
the analysis module is used for receiving the code stream uploaded by the client, analyzing the code stream according to the analysis parameters and acquiring bitmap data of the subtitles;
the recognition module is used for recognizing the bitmap data through an OCR recognition technology to obtain the character information of the subtitles;
the customizing module is used for customizing the text information according to the customizing parameters;
the communication module is also used for sending the customized text information to the client.
9. The DVB system for customizing subtitles according to claim 8, wherein the customization parameters comprise a translation parameter and a font parameter; the customization module comprises a translation submodule and/or a font submodule;
the translation submodule is used for customizing and translating the character information according to the translation parameters in the customization parameters;
and the font submodule is used for customizing and changing the font of the character information according to the font parameters in the customized parameters.
10. The DVB system for customizing subtitles according to claim 8, wherein the subtitle request information further comprises program uniqueness information;
the server side enables the clients with the same uniqueness information to form a subtitle resource group, one client in the subtitle resource group is selected as a main client, and other clients are selected as standby clients;
the server side further comprises:
the judging module is used for judging whether the client is a main client or not, and if so, informing the main client of uploading the code stream;
and the switching module is used for notifying one of the standby clients of uploading the code stream when the main client fails to upload the code stream.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113486678A (en) * | 2021-07-06 | 2021-10-08 | 中山亿联智能科技有限公司 | Method for supporting google translation by dvb subtitle |
| CN114885197A (en) * | 2022-04-26 | 2022-08-09 | 中山亿联智能科技有限公司 | Multi-language translation system and method applied to set top box subtitles |
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