CN104768028A - Method and device for activating graphic identification code in video - Google Patents
Method and device for activating graphic identification code in video Download PDFInfo
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- CN104768028A CN104768028A CN201510212750.XA CN201510212750A CN104768028A CN 104768028 A CN104768028 A CN 104768028A CN 201510212750 A CN201510212750 A CN 201510212750A CN 104768028 A CN104768028 A CN 104768028A
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- 238000000034 method Methods 0.000 title claims abstract description 46
- 230000003213 activating effect Effects 0.000 title claims abstract description 28
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 230000008569 process Effects 0.000 claims abstract description 13
- 238000003909 pattern recognition Methods 0.000 claims description 24
- 230000009471 action Effects 0.000 abstract description 4
- 230000004913 activation Effects 0.000 description 4
- 230000002452 interceptive effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000002716 delivery method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
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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
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
- G06K7/1404—Methods for optical code recognition
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Abstract
The embodiment of the invention discloses a method and device for activating graphic identification code in video and is applied to terminals. The method comprises the steps that after a playing request of a target video of a user is received, the target video is applied from a server, the server can determine the information including the reserved frame identification and the graphic identification codes of a video frame which pre-stores a target video and includes the graphic identification codes, the server feeds back video streaming of the target video, and meanwhile the server can at least feed back the reserved frame identification of the video frame, including the graphic identification codes, of the target video; the video streaming and the reserved frame identification fed back by the server are received; in the playing process of the target video, whether the two conditions are met at the same time or not is detected; the frame identification of the current played video frame belongs to the reserved frame identification, and first kind of actions, aiming at the currently played video frame, of a user is obtained; if the detection result is yes, information carried by the graphic identification code stored by the server is output to a user. The scheme can simplify the user operation for activating the graphic identification code.
Description
Technical Field
The invention relates to the technical field of pattern identification codes, in particular to a method and a device for activating a pattern identification code in a video.
Background
The pattern recognition code has the advantages of large information storage capacity, high confidentiality, convenience and the like, and is widely applied to various fields of consumption and shopping, food tracing, identity authentication and the like.
In the prior art, if a device a (such as a computer, a television or a mobile phone) plays a video and the played video contains a pattern recognition code, the following operations are generally required for activating the pattern recognition code from the device a:
the pattern recognition code is scanned, activated and an activation result is obtained by a B device (such as a mobile phone). Further, the activation result obtained on the B device is delivered to the a device, and the delivery method may be various, such as: and the B device saves the obtained activation result into a cloud storage tool, logs in the cloud storage tool on the A device and reads the activation result. Obviously, this process involves many operations, which are too cumbersome for the average user.
Disclosure of Invention
The embodiment of the invention aims to provide a method and a device for activating a graphical identification code in a video, so as to simplify user operation required for activating the graphical identification code. The specific technical scheme is as follows:
in a first aspect, an embodiment of the present invention provides a method for activating a graphical identification code in a video, which is applied to a terminal; the method comprises the following steps:
after a playing request of a user for a target video is received, requesting the target video from a server, so that when the server judges that a preset frame identifier of a video frame containing a graphic identification code and information carried by the graphic identification code, which are aimed at by the target video, are stored in advance, the server feeds back a video stream of the target video to the terminal, and at least feeds back the preset frame identifier of the video frame containing the graphic identification code, which is aimed at by the target video, to the terminal;
receiving a video stream of the target video fed back by a server and a preset frame identifier of a video frame containing a graphic identification code;
in the playing process of the target video, whether the following two conditions are simultaneously met is detected: the frame identification of the currently played video frame belongs to a preset frame identification, and a first type of operation of the user aiming at the currently played video frame is obtained;
and if the detection result is yes, outputting the information carried by the pattern identification code stored by the server to the user.
Optionally, the outputting the information carried by the graphical identification code stored by the server to the user includes:
requesting the server for the information carried by the pattern identification code;
and outputting the information obtained by the request to the user.
Optionally, the server further feeds back information carried by the pattern identification code to the terminal;
the outputting the information carried by the pattern identification code stored by the server to the user includes:
and outputting the received information carried by the pattern identification code fed back by the server to the user.
Optionally, the first type of operation is a mouse click operation or a touch screen click operation of a user.
Optionally, the method for activating a pattern identifier in a video according to the embodiment of the present invention further includes:
after detecting that the two conditions are simultaneously met, further detecting whether the area of the current played video frame aimed at by the first type of operation is a preset graphic identification code area, if so, continuing to execute the step of outputting the information carried by the graphic identification code stored by the server to the user.
In a second aspect, an embodiment of the present invention provides an apparatus for activating a pattern identifier in a video, which is applied to a terminal; the device comprises:
the request module is used for requesting a target video from a server after receiving a playing request of a user for the target video, so that the server feeds back a video stream of the target video to the terminal and at least feeds back a preset frame identifier of a video frame containing a graphic identification code for the target video to the terminal when judging that the preset frame identifier of the video frame containing the graphic identification code for the target video and information carried by the graphic identification code are stored in advance;
the receiving module is used for receiving the video stream of the target video fed back by the server and the preset frame identification of the video frame containing the graphic identification code;
a detection module, configured to detect whether two following conditions are simultaneously met in a playing process of the target video: the frame identification of the currently played video frame belongs to a preset frame identification, and a first type of operation of the user aiming at the currently played video frame is obtained;
and the output module is used for outputting the information carried by the graphic identification code stored by the server to the user if the detection result is positive.
Optionally, the output module is specifically configured to:
and requesting the information carried by the graphic identification code from the server, and outputting the information obtained by the request to the user.
Optionally, the information fed back to the terminal by the server further includes information carried by the pattern identification code;
the output module is specifically configured to:
and outputting the received information carried by the pattern identification code fed back by the server to the user.
Optionally, the first type of operation of the user for the currently played video frame detected by the detection module is a user mouse click operation or a touch screen click operation.
Optionally, the apparatus for activating a pattern identifier in a video according to an embodiment of the present invention further includes:
a second detection module, configured to further detect whether an area of the currently played video frame targeted by the first type of operation is a predetermined pattern identifier area after detecting that the two conditions are simultaneously met, and if so, trigger an output module to continue to perform the step of outputting, to the user, information carried by the pattern identifier stored in the server.
The method and the device for activating the graphical identification code in the video provided by the embodiment of the invention enable the server to feed back the target video and at least feed back the preset frame identifier of the video frame containing the graphical identification code, and output the information carried by the graphical identification code prestored in the server to the user when receiving the first type of operation of the user on the video frame containing the graphical identification code. According to the scheme, the relevant data of the graphic identification code is prestored in the server, the terminal can request the server for obtaining the prestored relevant data, and when the user needs to obtain the information carried by the graphic identification code, the information carried by the graphic identification code in the relevant data is directly output to the user.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart illustrating a method for activating a pattern identifier in a video according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an apparatus for activating a pattern identifier in a video according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.
In order to solve the problem of the prior art, embodiments of the present invention provide a method and an apparatus for activating a graphical identification code in a video, so as to simplify user operations required for activating the graphical identification code.
While the invention may be implemented on a stand-alone computer, in general, embodiments of the invention are implemented on a terminal that is communicatively coupled to a server. To achieve the object of the embodiment of the present invention, in the process of producing a video including a pattern recognition code, a plurality of items of information related to the pattern recognition code have been stored in advance. The multiple items of information related to the pattern recognition code are hereinafter referred to as pattern recognition code related data, including but not limited to: the frame identification of the video frame containing the pattern recognition code and the information carried by the pattern recognition code itself. In addition, the related data of the graphic identification codes corresponding to different videos can be stored in the same database file or different database files; for the condition of being stored in the same database file, the database file can record the corresponding relation between the videos and the related data of the graphic identification codes, so that the related data of the graphic identification codes corresponding to any video can be extracted from the database file; for the case of storing in different database files, the database file may be a metadata file, and the name of the database file may be set based on the related information of the video, so that the database file corresponding to any video can be determined.
For convenience of the text, the video containing the pattern recognition code is hereinafter referred to simply as the target video. It should be noted that the pattern recognition code referred to herein is conceptually including, but not limited to, a two-dimensional code and a barcode.
Moreover, the method for activating the pattern recognition code in the video according to the embodiment of the present invention may be a client software installed in the terminal and independent of other software, for example: a video playing client corresponding to the video portal website; it is also reasonable to open a video portal web site for a browser-based web client by accessing a web server.
First, a method for activating a pattern identifier in a video according to an embodiment of the present invention is described below.
Fig. 1 is a flowchart illustrating a method for activating a pattern identifier in a video according to an embodiment of the present invention, where the method for activating a pattern identifier in a video shown in the flowchart may include the following steps:
s101, after receiving a playing request of a user for a target video, requesting the target video from a server, so that when the server judges that a preset frame identifier of a video frame containing a graphic identification code and information carried by the graphic identification code, which are aimed at by the target video, are stored in advance, the server feeds back a video stream of the target video to the terminal, and at least feeds back the preset frame identifier of the video frame containing the graphic identification code, which is aimed at by the target video, to the terminal;
and when a playing request of a user for the target video is received, the terminal requests the server for the target video. Correspondingly, the server judges whether relevant data of the pattern identification code corresponding to the target video is stored or not, and executes different operations according to different judgment results, wherein the relevant data comprises but is not limited to: the video frame contains the predetermined frame identification of the pattern recognition code and the information carried by the pattern recognition code. Specifically, if the server determines that the data related to the pattern identifier corresponding to the target video is stored, the server may feed back the video stream of the target video to the terminal, and at least feed back a predetermined frame identifier of a video frame containing the pattern identifier for the target video to the terminal, where for information carried by the pattern identifier, the information may be fed back when the predetermined frame identifier is fed back, or the information may be fed back when a subsequent request is made by the terminal device; and if the server judges that the relevant data of the graphic identification code corresponding to the target video is not stored, the server can only feed back the video stream of the target video to the terminal.
Furthermore, it can be understood that, in the case where the data related to the pattern identifiers corresponding to different videos are stored in the same database file, the server determines whether the data related to the pattern identifier corresponding to the target video is stored in a manner of: and judging whether the mapping relation of the target video and the relevant data of the graphic identification code exists in the database file. For the case that the data related to the pattern identifier corresponding to different videos is stored in different database files, the server determines whether the data related to the pattern identifier corresponding to the target video is stored in a manner that: judging whether a database file corresponding to the target video exists or not; and if the server feeds back the video stream and simultaneously feeds back the information carried by the preset frame identifier and the graphic identification code to the terminal, at this time, the database file corresponding to the target video can be directly fed back to the terminal.
It should be noted that, herein, the frame identifier of a video frame refers to an identifier representing a position of the video frame in the target video, where the frame identifier has a unique correspondence with the video frame, that is, a unique video frame can be determined by using one frame identifier. Specifically, the video frames refer to one static picture which sequentially forms a video stream, and generally, the position of a certain or some video frames in the video stream can be represented by a time point or a time period, and the time can be represented by a time in minutes, seconds and milliseconds, or of course, the video frames can also be represented by a position sequence number of the video frames in the video stream, such as an nth video frame. Accordingly, the predetermined frame identification herein may be in a temporal form or a digital form. And because the pattern recognition code can be located in at least one video frame, the predetermined frame identification can be a specific value or a range.
S102, receiving a video stream of the target video fed back by a server and a preset frame identifier of a video frame containing a graphic identification code;
and the terminal receives the video stream of the target video fed back by the server, starts playing the video to the user, and simultaneously receives the preset frame identifier fed back by the server for use in the subsequent steps. The pattern recognition code will generally not only appear on a certain frame of the video but on several consecutive frames, so that the predetermined frame identification here may be a range of values, for example, from frame 50 to 80.
S103, in the playing process of the target video, detecting whether the following two conditions are simultaneously met: the frame identification of the currently played video frame belongs to a preset frame identification, and a first type of operation of the user aiming at the currently played video frame is obtained;
the target video may contain only one pattern recognition code, and may contain a plurality of pattern recognition codes. From the beginning of video playing, the step can continuously detect whether the frame identifier of the currently played video frame falls into the frame identifier range corresponding to the predetermined frame identifier, if not, the video is continuously played, and if so, whether necessary user interaction operation (first-class operation) is received is further detected. The purpose of detecting the first type of operation of the user is to: when the pattern identification code appears in the video playing picture, whether the user is interested in the pattern identification code is judged, and if the user does not do any interactive operation because the user is not interested, the video playing is continued. If the user is interested and has made certain interactive operations, the following steps are performed.
The two conditions of video playing to the preset frame identification and receiving the first type of user operation need to be met simultaneously. However, in a specific implementation manner, it may also be determined whether the first type of operation of the user is received, if not, the video is continuously played backwards, and if so, it is further detected whether the frame identifier of the currently played video frame belongs to the predetermined frame identifier.
The first type of operation may be a mouse click operation, for example, on a terminal computer, or a touch screen click operation, for example, on a smart phone. Or may be a more complex operation. For example, when it is detected in step S103 that the frame identifier of the currently played video frame belongs to the predetermined frame identifier, information prompting the user to perform an interactive operation may be automatically displayed at a certain position of the video playing window. For example, a "click on" button or the like is displayed on or near the graphical identification code. In this case, the first type of user operation is a user click on the button.
And S104, if the detection result is yes, outputting the information carried by the pattern identification code stored in the server to the user.
If the result of the detection in S103 is yes, the step outputs information carried by the graphical identification code pre-stored in the server to the user. In view of the wide application of the pattern recognition code, the embodiment of the present invention refers to outputting the information carried by the pattern recognition code to the user, and includes various functions or processes for enabling the user to obtain the information in the pattern recognition code.
As described in S101, the information carried in the pattern identifier may be fed back by the server when the server feeds back the video stream to the terminal, and what is needed in this step is for the terminal to output the received information carried in the pattern identifier fed back by the server to the user. Possibly, when the server feeds back the video stream to the terminal, the information carried by the pattern identification code is not fed back, and for the terminal, the information carried by the pattern identification code is also requested to the server in the step; and then outputting the information requested to be obtained to the user.
As can be seen from the embodiment shown in fig. 1, in the method for activating a graphical identification code in a video provided by the embodiment of the present invention, relevant data of the graphical identification code is pre-stored in a server, a terminal can request the server to obtain the pre-stored relevant data, and when a user needs to obtain information carried by the graphical identification code, the information carried by the graphical identification code in the relevant information is directly output to the user.
Furthermore, since some commonly used players may have a function of pausing the playing in response to the user clicking on the screen, and the graphical identification code is usually located at the lower left or lower right of the video frame, in order to improve the response accuracy, on the premise that the two conditions of the video playing to the predetermined frame identification and the first type of user operation are simultaneously satisfied,
whether the area of the current played video frame targeted by the first type of operation is a preset graphic identification code area can be further detected, and if so, the step of outputting the information carried by the graphic identification code stored by the server to the user is continuously executed. If not, the information carried by the figure identification code is not fed back to the user.
The specific position can be stored by the server and fed back to the terminal while feeding back the predetermined frame identifier, and of course, the specific position can be set by the terminal by self as a default and does not need to be acquired from the server, which is reasonable.
Corresponding to the above method embodiment, the invention also provides a device for activating the pattern identification code in the video.
Referring to fig. 2, fig. 2 is a diagram illustrating an apparatus for activating a pattern identifier in a video according to an embodiment of the present invention, which is applied to a terminal; the device comprises: the device comprises a request module 201, a receiving module 202, a detection module 203 and an output module 204. Wherein,
a request module 201, configured to, after receiving a play request of a target video from a user, request the target video from a server, so that when determining that a predetermined frame identifier of a video frame containing a graphics identification code and information carried by the graphics identification code, which are targeted by the target video, are stored in advance, the server feeds back a video stream of the target video to the terminal, and at least feeds back the predetermined frame identifier of the video frame containing the graphics identification code, which is targeted by the target video, to the terminal;
a receiving module 202, configured to receive a video stream of the target video and a predetermined frame identifier of a video frame including a graphics identifier, where the video stream is fed back by a server;
a detecting module 203, configured to detect whether the following two conditions are simultaneously met in the playing process of the target video: the frame identification of the currently played video frame belongs to a preset frame identification, and a first type of operation of the user aiming at the currently played video frame is obtained;
and the output module 204 is configured to output, to the user, information carried by the pattern identification code stored in the server if the detection result is yes.
As can be seen from the embodiment shown in fig. 2, in the apparatus for activating a graphical identification code in a video according to the embodiment of the present invention, the relevant data of the graphical identification code is pre-stored in the server, and the terminal can request the server to obtain the pre-stored relevant data, and directly output the information carried by the graphical identification code in the relevant information to the user when the user needs to obtain the information carried by the graphical identification code.
Specifically, the output module 204 is specifically configured to:
and requesting the information carried by the graphic identification code from the server, and outputting the information obtained by the request to the user.
Specifically, the information fed back to the terminal by the server further includes information carried by the pattern identification code;
the output module 204 is specifically configured to:
and outputting the received information carried by the pattern identification code fed back by the server to the user.
Specifically, the first type of operation of the user for the currently played video frame detected by the detection module is a user mouse click operation or a touch screen click operation.
Furthermore, an apparatus for activating a pattern identifier in a video according to an embodiment of the present invention further includes:
a second detection module, configured to further detect whether an area of the currently played video frame targeted by the first type of operation is a predetermined pattern identifier area after detecting that the two conditions are simultaneously met, and if so, trigger an output module to continue to perform the step of outputting information carried by the pattern identifier stored in the server to the user
It is clear to those skilled in the art that for convenience and brevity of description, the specific working procedures of the above-described apparatus and modules may be described with reference to the corresponding procedures in the foregoing method embodiments, so that in the description of the apparatus, the description is simplified, and only some important technical points are described.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, as for the apparatus embodiment, since it is substantially similar to the method embodiment, the description is relatively simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
Those skilled in the art will appreciate that all or part of the steps in the above method embodiments may be implemented by a program to instruct relevant hardware to perform the steps, and the program may be stored in a computer-readable storage medium, which is referred to herein as a storage medium, such as: ROM/RAM, magnetic disk, optical disk, etc.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (10)
1. A method for activating a pattern identification code in a video is characterized by being applied to a terminal; the method comprises the following steps:
after a playing request of a user for a target video is received, requesting the target video from a server, so that when the server judges that a preset frame identifier of a video frame containing a graphic identification code and information carried by the graphic identification code, which are aimed at by the target video, are stored in advance, the server feeds back a video stream of the target video to the terminal, and at least feeds back the preset frame identifier of the video frame containing the graphic identification code, which is aimed at by the target video, to the terminal;
receiving a video stream of the target video fed back by a server and a preset frame identifier of a video frame containing a graphic identification code;
in the playing process of the target video, whether the following two conditions are simultaneously met is detected: the frame identification of the currently played video frame belongs to a preset frame identification, and a first type of operation of the user aiming at the currently played video frame is obtained;
and if the detection result is yes, outputting the information carried by the pattern identification code stored by the server to the user.
2. The method according to claim 1, wherein said outputting information carried by said graphical identification code stored by said server to said user comprises:
requesting the server for the information carried by the pattern identification code;
and outputting the information obtained by the request to the user.
3. The method according to claim 1, characterized in that the server also feeds back information carried by the pattern recognition code to the terminal;
the outputting the information carried by the pattern identification code stored by the server to the user includes:
and outputting the received information carried by the pattern identification code fed back by the server to the user.
4. The method of claim 1, wherein the first type of operation is a user mouse click operation or a touch screen click operation.
5. The method according to any one of claims 1-4, further comprising:
after detecting that the two conditions are simultaneously met, further detecting whether the area of the current played video frame aimed at by the first type of operation is a preset graphic identification code area, if so, continuing to execute the step of outputting the information carried by the graphic identification code stored by the server to the user.
6. A device for activating a pattern identification code in a video is characterized by being applied to a terminal; the device comprises:
the request module is used for requesting a target video from a server after receiving a playing request of a user for the target video, so that the server feeds back a video stream of the target video to the terminal and at least feeds back a preset frame identifier of a video frame containing a graphic identification code for the target video to the terminal when judging that the preset frame identifier of the video frame containing the graphic identification code for the target video and information carried by the graphic identification code are stored in advance;
the receiving module is used for receiving the video stream of the target video fed back by the server and the preset frame identification of the video frame containing the graphic identification code;
a detection module, configured to detect whether two following conditions are simultaneously met in a playing process of the target video: the frame identification of the currently played video frame belongs to a preset frame identification, and a first type of operation of the user aiming at the currently played video frame is obtained;
and the output module is used for outputting the information carried by the graphic identification code stored by the server to the user if the detection result is positive.
7. The apparatus of claim 6, wherein the output module is specifically configured to:
and requesting the information carried by the graphic identification code from the server, and outputting the information obtained by the request to the user.
8. The device according to claim 6, wherein the information fed back to the terminal by the server further includes information carried by the pattern recognition code;
the output module is specifically configured to:
and outputting the received information carried by the pattern identification code fed back by the server to the user.
9. The apparatus of claim 6, wherein the first type of operation of the user for the currently played video frame detected by the detection module is a user mouse click operation or a touch screen click operation.
10. The apparatus of any one of claims 6-9, further comprising:
a second detection module, configured to further detect whether an area of the currently played video frame targeted by the first type of operation is a predetermined pattern identifier area after detecting that the two conditions are simultaneously met, and if so, trigger an output module to continue to perform the step of outputting, to the user, information carried by the pattern identifier stored in the server.
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