CN114513699A - Method and device for preventing screen recording outside OTT television - Google Patents
Method and device for preventing screen recording outside OTT television Download PDFInfo
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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
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
- H04N21/44236—Monitoring of piracy processes or activities
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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
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
- H04N21/4627—Rights management associated to the content
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Abstract
The application discloses and provides a method and a device for preventing screen recording outside an OTT television, wherein the method comprises the following steps: acquiring image frame data acquired by external camera equipment; judging whether an illegal recording behavior exists according to the image frame data; if so, an illegal screen recording message event is generated to stop receiving signals, and the problem that piracy cannot be radically treated in the prior art that video content is encrypted by adopting a digital copyright protection technology or copyright ownership is declared in a watermark mode or video recording behaviors on a system level are realized through control of an application layer is solved.
Description
Technical Field
The invention relates to the technical field of multimedia video protection, in particular to a method and a device for preventing an OTT television external screen from being recorded.
Background
Along with the rapid development of network videos, the copyright problem is increasingly highlighted, and piracy rampant blocks the healthy development of the video industry. At present, video piracy prevention means generally adopts a digital copyright protection technology to encrypt video content or declares copyright ownership in a watermark mode or realizes video recording behaviors on a system level through control of an application layer, but the above means still cannot solve the problem of piracy, a pirate can watch videos through the identity of an authorizer, records the videos by using external video recording equipment (such as a video recorder and the like), and then carries out secondary editing on the recorded videos, namely the protection of the digital copyright protection technology on the videos can be cracked, and the purpose of video piracy is further realized.
Disclosure of Invention
Therefore, the technical problem to be solved by the present invention is to overcome the problem that piracy cannot be radically controlled by using a digital copyright protection technology to encrypt video content or declaring copyright ownership by means of watermarking or realizing video recording behavior on a system level by means of control of an application layer in the prior art, thereby providing a method and a device for preventing screen recording outside an OTT television.
In order to solve the technical problem, the disclosed embodiments of the present invention at least provide a method and an apparatus for preventing screen recording outside an OTT television.
In a first aspect, an embodiment of the present invention provides a method for preventing an OTT television from recording an external screen, including:
acquiring image frame data acquired by external camera equipment;
judging whether an illegal recording behavior exists according to the image frame data;
and if so, generating an illegal screen recording message event to stop receiving the signal.
Optionally, the determining whether an illegal recording behavior exists according to the image frame data includes:
compressing and coding the image frame data, sending the compressed and coded image frame data to a remote service module, receiving the compressed and coded image frame data by the remote service module, decompressing the compressed and coded image frame data, and detecting and matching the decompressed image frame data by adopting an image recognition algorithm and a model matching algorithm;
and receiving a detection result returned by the remote service module, and judging whether an illegal recording behavior exists according to the detection result.
Optionally, the detection result includes: a normal state value and/or an abnormal state value;
the receiving of the detection result returned by the remote service module includes: if the detection result shows that the remote service module is abnormal, the detection result returned by the remote service module is an abnormal state value, otherwise, the detection result returned by the remote service module is a normal state value.
Optionally, the generating an illegal screen recording message event to stop receiving a signal includes:
and sending an illegal screen recording message event to an event monitoring module, and informing a signal receiving module to stop receiving signals by the event monitoring module.
Optionally, detecting whether an external camera device exists, if not, sending a message event to an event monitoring module, receiving the message event by the event monitoring module, searching an event message mapping table according to an index value of the message event, acquiring message event error information, and outputting the message event error information to a television display screen to prompt a user that the current external camera device is abnormal in connection.
In a second aspect, an embodiment of the present invention further provides a device for preventing an external screen from being recorded of an OTT television, including:
the acquisition module is used for acquiring image frame data acquired by external camera equipment;
the judging module is used for judging whether an illegal recording behavior exists according to the image frame data;
and the generating module is used for generating an illegal screen recording message event to stop receiving signals when illegal recording behaviors exist.
Optionally, the determining module is configured to perform compression coding on the image frame data, send the compression-coded image frame data to a remote service module, receive the compression-coded image frame data by the remote service module, decompress the compression-coded image frame data, and perform detection and matching on the decompressed image frame data by using an image recognition algorithm and a model matching algorithm; and receiving a detection result returned by the remote service module, and judging whether an illegal recording behavior exists according to the detection result.
Optionally, the generating module is configured to send an illegal screen recording message event to the event monitoring module, and the event monitoring module notifies the signal receiving module to stop receiving the signal.
In a third aspect, an embodiment of the present disclosure further provides a computer device, including: a processor, a memory and a bus, the memory storing machine-readable instructions executable by the processor, the processor and the memory communicating via the bus when the computer device is running, the machine-readable instructions when executed by the processor performing the steps of the first aspect described above, or any possible implementation of the first aspect.
In a fourth aspect, the disclosed embodiments of the present invention further provide a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and the computer program is executed by a processor to perform the steps in the first aspect or any possible implementation manner of the first aspect.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
acquiring image frame data acquired by external camera equipment; judging whether an illegal recording behavior exists according to the image frame data; if so, generating an illegal screen recording message event to stop receiving signals, and realizing detection, identification and control of external recording of the television program at the OTT set-top box end, thereby effectively avoiding video piracy by an external recording mode and improving user experience and satisfaction.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 shows a flowchart of an OTT television external screen recording prevention method according to an embodiment of the present disclosure;
fig. 2 shows a schematic structural diagram of an external screen recording prevention device of an OTT television according to an embodiment of the present disclosure;
fig. 3 shows a schematic structural diagram of an OTT television external screen recording prevention system according to an embodiment of the present disclosure;
fig. 4 shows a flowchart of a method for implementing an OTT television external screen recording prevention system in a set-top box start phase according to the embodiment of the present disclosure;
fig. 5 shows a flowchart of a method for implementing an OTT television external screen recording prevention system in a set-top box start completion phase according to an embodiment of the present disclosure;
FIG. 6 is a diagram illustrating values of perceptual state variables provided by the disclosed embodiment of the present invention;
FIG. 7 is a diagram illustrating a format of returned results provided by the disclosed embodiment of the invention;
FIG. 8 illustrates an exemplary diagram of a return to normal state value provided by a disclosed embodiment of the invention;
fig. 9 shows a schematic structural diagram of a computer device according to an embodiment of the disclosure.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
Example 1
As shown in fig. 1, a flowchart of an OTT television external screen recording prevention method provided in an embodiment of the present disclosure includes:
s11: acquiring image frame data acquired by external camera equipment;
s12: judging whether an illegal recording behavior exists according to the image frame data;
s13: and if so, generating an illegal screen recording message event to stop receiving the signal.
In a specific practice, the determining whether an illegal recording behavior exists according to the image frame data includes:
compressing and coding the image frame data, sending the compressed and coded image frame data to a remote service module, receiving the compressed and coded image frame data by the remote service module, decompressing the compressed and coded image frame data, and detecting and matching the decompressed image frame data by adopting an image recognition algorithm and a model matching algorithm;
and receiving a detection result returned by the remote service module, and judging whether an illegal recording behavior exists according to the detection result.
In specific practice, the detection result includes: a normal state value and/or an abnormal state value;
the receiving of the detection result returned by the remote service module includes: if the detection result shows that the remote service module is abnormal, the detection result returned by the remote service module is an abnormal state value, otherwise, the detection result returned by the remote service module is a normal state value.
In a specific practice, the generating an illegal screen recording message event to stop receiving a signal includes:
and sending an illegal screen recording message event to an event monitoring module, and informing a signal receiving module to stop receiving signals by the event monitoring module.
In specific practice, whether external camera equipment exists or not is detected, if the external camera equipment does not exist, a message event is sent to an event monitoring module, the event monitoring module receives the message event, an event message mapping table is searched according to an index value of the message event, message event error information is obtained, the message event error information is output to a television display screen, and a user is prompted that the current external camera equipment is abnormal in connection.
It can be understood that, in the technical solution provided by this embodiment, image frame data acquired by an external camera device is acquired; judging whether an illegal recording behavior exists according to the image frame data; if so, an illegal screen recording message event is generated to stop receiving signals, and detection, identification and control of external recording of the television program at the OTT set-top box end are realized, so that the behavior of video piracy in an external recording mode can be effectively avoided, and the problem that in the prior art, the digital copyright protection technology is adopted to encrypt video content, or copyright ownership is declared in a watermark mode, or the video recording behavior on a system level is realized through control of an application layer, and piracy cannot be radically controlled is solved.
Example 2
As shown in fig. 2, an embodiment of the present invention further provides an external screen recording prevention device for an OTT television, including:
the acquisition module 21 is configured to acquire image frame data acquired by an external camera device;
the judging module 22 is used for judging whether an illegal recording behavior exists according to the image frame data;
and the generating module 23 is configured to generate an illegal screen recording message event to stop receiving the signal when there is an illegal recording behavior.
In a specific practice, the determining module 22 is configured to perform compression encoding on the image frame data, send the compression-encoded image frame data to a remote service module, receive the compression-encoded image frame data by the remote service module, decompress the compression-encoded image frame data, and detect and match the decompressed image frame data by using an image recognition algorithm and a model matching algorithm; and receiving a detection result returned by the remote service module, and judging whether an illegal recording behavior exists according to the detection result.
In a specific practice, the generating module 23 is configured to send an illegal screen recording message event to the event monitoring module, and the event monitoring module notifies the signal receiving module to stop receiving the signal.
It can be understood that, in the technical solution provided by this embodiment, image frame data acquired by an external camera device is acquired; judging whether an illegal recording behavior exists according to the image frame data; if so, an illegal screen recording message event is generated to stop receiving signals, and detection, identification and control of external recording of the television program at the OTT set-top box end are realized, so that the behavior of video piracy in an external recording mode can be effectively avoided, and the problem that in the prior art, the digital copyright protection technology is adopted to encrypt video content, or copyright ownership is declared in a watermark mode, or the video recording behavior on a system level is realized through control of an application layer, and piracy cannot be radically controlled is solved.
Example 3
As shown in fig. 3, an embodiment of the present invention further provides an OTT television external screen recording prevention system, including:
the system comprises a television signal receiving module, an event monitoring module, a scene perception module and a cloud service module;
in the starting and starting stage of the set top box, the scene sensing module is used for sensing and detecting whether external camera equipment is normally connected or not, if the external camera equipment is not detected, a message event is triggered to an application layer, the application layer is informed to prompt a user that the externally connected camera equipment is not found, when the user requests to play, the event monitoring module captures the user request, judges that the current state is the camera equipment unconnected state, refuses the request of the user for playing, and under the condition that the external camera equipment is not normally connected, the user cannot normally watch videos;
after the set top box is normally started, the scene sensing module is used for regularly requesting the connected camera equipment to acquire images of the surrounding environment, acquiring the acquired images, compressing and encoding the images, transmitting the acquired image frames back to the remote service module, receiving the image frames transmitted back by the scene sensing module by the remote service module, decompressing the image frames, detecting whether the transmitted image frames have illegal recording behaviors or not by adopting a general image recognition and model matching algorithm, and when the image frames are detected to contain target objects predefined by a mobile phone and a camera, having the illegal recording behaviors and returning the detection result to the scene sensing module;
the scene perception module is used for receiving a detection result returned by the remote service module, if the detection result returned by the remote service module indicates that an illegal recording action exists outside, the scene perception module triggers an illegal screen recording message event, the event monitoring module of the application layer captures the message event, acquires the message event, determines whether to inform the signal receiving module to stop continuously receiving signals according to the value situation of the message event, if the signal receiving module receives the information to stop continuously receiving signals, pops up a prompt dialog box to prompt a user that the illegal screen recording action exists while stopping receiving the signals, and returns to an application homepage after the user closes the prompt dialog box;
when a user tries to play a television program again, the event monitoring module firstly checks a sensed state variable value, if the state variable value is an abnormal value, the event monitoring module requests sensing to the scene sensing module through a system interface, the scene sensing module immediately carries out a passive scene sensing process, the passive scene sensing process comprises acquiring an ambient environment image frame, transmitting the ambient environment image frame back to the remote service module and returning a result, the event monitoring module judges the returned result, and when the sensed result has an illegal screen recording behavior, a prompt dialog box pops up again to prompt the user that the illegal screen recording exists, otherwise, the normal television program playing process is started.
It can be understood that, in the technical solution provided by this embodiment, image frame data acquired by an external camera device is acquired; judging whether an illegal recording behavior exists according to the image frame data; if so, an illegal screen recording message event is generated to stop receiving signals, and detection, identification and control of external recording of the television program at the OTT set-top box end are realized, so that the behavior of video piracy in an external recording mode can be effectively avoided, and the problem that in the prior art, the digital copyright protection technology is adopted to encrypt video content, or copyright ownership is declared in a watermark mode, or the video recording behavior on a system level is realized through control of an application layer, and piracy cannot be radically controlled is solved.
Example 4
As shown in fig. 4, an embodiment of the disclosure of the present invention further provides a flowchart of a method for implementing an OTT television external screen recording prevention system in a set-top box start phase, where the method includes:
s41: in the starting process of the set-top box, the scene perception module inquires an equipment driving list, if no externally connected camera equipment is found, the step goes to step S43, otherwise, the step goes to step S42;
s42: requesting acquisition of an image frame to an externally connected image pickup apparatus, if the request fails, proceeding to step S43, otherwise, proceeding to step S45;
s43: triggering a message event (the message event corresponds to an integer value and represents a corresponding event index) to the application layer, and informing the application layer that the external equipment connection is abnormal;
s44: after receiving the message event, the application layer event monitoring module searches an event message mapping table according to the message event index value, finds out message event error information, outputs the error information to a television display screen, prompts a user that the current external equipment connection is abnormal, which can cause that the television program cannot be normally played, and turns to step S41 after the user closes the prompt message dialog box;
s45: the scene perception module starts a timing task thread, the timing time is set to be 30 seconds, the timing task thread mainly works in the mode that the external equipment requests to collect surrounding environment image frame data at fixed time, the surrounding environment image frame data are transmitted back to the cloud service module after being coded and compressed, and whether a message event is triggered or not is determined according to the return result of the cloud service module;
and the set top box is started up.
It can be understood that, according to the technical solution provided by this embodiment, by detecting connectivity of the device, an effective boundary of exception handling is ensured, and expectation of behavior is ensured.
Example 5
As shown in fig. 5, a flowchart of a method for implementing an OTT television external screen recording prevention system in a set-top box start completion phase according to an embodiment of the present invention includes:
s51: a user selects a television program to watch through a remote controller, a message event is triggered, an event monitoring module captures the message event, firstly, the event monitoring module checks a state variable S sensed by the external environment, and the value of the sensed state variable is as shown in fig. 6:
if the perceived state variable S =1, it indicates that there is no illegal screen recording action currently, in this case, go to step S57; if the perceived state variable S =2, it indicates that there is an illegal screen recording behavior at present, in which case, go to step S55; if the perceived state variable S = -1, indicating that the current perceived state is not yet initialized or is in an unknown state, in this case, go to step S52;
s52: the event monitoring module requests a scene sensing state from the scene sensing module through a system interface, the scene sensing module requests to collect surrounding image frames from external camera equipment after receiving the request, the external camera equipment collects image frame data and returns the image frame data to the scene sensing module, the scene sensing module performs compression coding on the collected image frames, and the algorithm for performing compression coding on the image frames can adopt common H264 and H265 compression coding algorithms;
s53: the compressed data in the steps are transmitted back to a cloud service module in a HTTP POST mode and the like, the cloud transmission module receives the data and decompresses the data, the decompression algorithm is consistent with the compression coding algorithm adopted in the step S52, after the data are decompressed, the decompressed image frames are detected and matched by adopting a common image recognition algorithm and a common model matching algorithm, if an illegal recording behavior is detected, an abnormal state value is returned, otherwise, a normal state value is returned;
the format of the returned result is shown in FIG. 7:
three scenarios are possible for returning results: 1) returning to a normal state value; 2) returning an abnormal state value; 3) an example of an internal processing error, returning to a normal state value is shown in FIG. 8.
The detected illegal recording behaviors comprise actual recording behaviors and illegal recording risks. Illegal recording behavior is considered, for example, in the following cases:
detecting and identifying the existence of predefined target objects such as a mobile phone, a camera and the like in an image frame;
finding an illegal model matched with the model database through model matching;
the image frames are taken with occlusion;
s54: the scene perception module returns the result returned by the remote service module to the event monitoring module, the event monitoring module immediately updates the perceived state variable value S, and if the returned perceived state variable S =1, the operation goes to S57; if the returned perceptual state variable S =2, go to step S55; if the returned sensing state variable S = -1, which indicates that the current sensing state is in an unknown state, go to step S56;
s55: the event monitoring module pops up prompt dialog box information to the screen display device to prompt a user that the user is carrying out illegal screen recording, and the user returns to an application homepage after closing the dialog box;
s56: the event monitoring module pops up prompt dialog box information to the screen display device to prompt a user that the safety is not confirmed yet and you try again later, and the user returns to an application homepage after closing the dialog box;
s57: the event monitoring module informs the signal receiving module that the television signal can be received, the signal receiving module inputs the received television signal into the signal processing module, and after a series of operations such as demultiplexing, descrambling and decoding, the data are transmitted into the terminal display equipment for rendering output;
s58: when the scene sensing module triggers a timing task, the scene sensing module requests external camera equipment to acquire an image frame of the surrounding environment, the external camera equipment acquires image frame data and returns the image frame data to the scene sensing module, the scene sensing module performs compression coding on the acquired image frame, and the algorithm for performing compression coding on the image frame can adopt common H264 and H265 compression coding algorithms;
s59: the data coded and compressed in the step S58 is transmitted back to the cloud service module in an HTTP POST manner, the cloud service module receives the data and decompresses the data, the decompression algorithm is consistent with the compression coding algorithm adopted in the step S58, the cloud service module processes the decompressed data by the same processing method as that adopted in the step S52, and returns the detection result to the scene sensing module;
s60: the scene perception module triggers the message event notification event monitoring module to update the perception state variable value, and before the event monitoring module updates the state variable value, the event monitoring module firstly compares the received latest state value with the previous state value: if the values are equal, only the state value is updated without any action; if the values are not equal, different operations need to be performed according to different value situations, and possible values are shown in the following table 1:
TABLE 1 State value matrix
Assuming that the state value pairs are represented by (old, new), all possible state value pairs are obtained according to the above table as: (-1,1),(-1,2),(1, -1),(1,2),(2, -1),(2,1). For the state value pairs (-1, 1), (2, 1), (1, -1), (2, -1) and (-1, 2), the operation needed is to update the state value and then return; and for the state value pair (1, 2), the signal receiving module needs to be informed to stop receiving the television signal, meanwhile, the signal receiving module pops up prompt dialog box information to the screen display device to prompt the user that 'you are recording the screen illegally', and the user returns to the application homepage after closing the dialog box.
It can be understood that, in the technical solution provided by this embodiment, image frame data acquired by an external camera device is acquired; judging whether an illegal recording behavior exists according to the image frame data; if yes, an illegal screen recording message event is generated to stop receiving signals, detection, identification and control of external recording of the television program at the OTT set top box end are achieved, so that the behavior of video piracy in an external recording mode can be effectively avoided, and the problem that in the prior art, digital copyright protection technology is adopted to encrypt video content or to declare copyright ownership in a watermark mode or to achieve video recording behavior on a system level through control of an application layer, and piracy cannot be radically controlled is solved.
Example 6
Based on the same technical concept, an embodiment of the present application further provides a computer device, which includes a memory 1 and a processor 2, as shown in fig. 9, where the memory 1 stores a computer program, and the processor 2 implements any one of the methods described above when executing the computer program.
The memory 1 includes at least one type of readable storage medium, which includes a flash memory, a hard disk, a multimedia card, a card type memory (e.g., SD or DX memory, etc.), a magnetic memory, a magnetic disk, an optical disk, and the like. The memory 1 may be an internal storage unit, such as a hard disk, of an OTT television external screen-recording prevention system in some embodiments. The memory 1 may also be an external storage device of an OTT television external screen-protection system in other embodiments, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and so on. Further, the memory 1 may also include both an internal storage unit of an external recording-prevention screen of the OTT television and an external storage device. The memory 1 can be used for storing application software installed on an external anti-recording screen of the OTT television and various data, such as codes of an external anti-recording screen program of the OTT television, and the like, and can also be used for temporarily storing data which is already output or is to be output.
The processor 2 may be a Central Processing Unit (CPU), a controller, a microcontroller, a microprocessor or other data Processing chip in some embodiments, and is configured to run program codes stored in the memory 1 or process data, for example, execute an OTT television external screen recording prevention program.
It can be understood that, in the technical solution provided by this embodiment, image frame data acquired by an external camera device is acquired; judging whether an illegal recording behavior exists according to the image frame data; if yes, an illegal screen recording message event is generated to stop receiving signals, detection, identification and control of external recording of the television program at the OTT set top box end are achieved, so that the behavior of video piracy in an external recording mode can be effectively avoided, and the problem that in the prior art, digital copyright protection technology is adopted to encrypt video content or to declare copyright ownership in a watermark mode or to achieve video recording behavior on a system level through control of an application layer, and piracy cannot be radically controlled is solved.
The disclosed embodiments of the present invention also provide a computer-readable storage medium having a computer program stored thereon, where the computer program is executed by a processor to perform the steps of the method described in the above method embodiments. The storage medium may be a volatile or non-volatile computer-readable storage medium.
The computer program product of the OTT television external screen recording prevention method provided by the embodiment of the present invention includes a computer readable storage medium storing a program code, where instructions included in the program code may be used to execute the steps of the method described in the above method embodiment, which may be specifically referred to the above method embodiment and will not be described herein again.
The disclosed embodiments also provide a computer program which, when executed by a processor, implements any one of the methods of the preceding embodiments. The computer program product may be embodied in hardware, software or a combination thereof. In an alternative embodiment, the computer program product is embodied in a computer storage medium, and in another alternative embodiment, the computer program product is embodied in a Software product, such as a Software Development Kit (SDK), or the like.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present invention, the meaning of "a plurality" means at least two unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units 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 also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A method for preventing screen recording outside an OTT television is characterized by comprising the following steps:
acquiring image frame data acquired by external camera equipment;
judging whether an illegal recording behavior exists according to the image frame data;
and if so, generating an illegal screen recording message event to stop receiving the signal.
2. The method of claim 1,
the judging whether the illegal recording behavior exists according to the image frame data comprises the following steps:
compressing and coding the image frame data, sending the compressed and coded image frame data to a remote service module, receiving the compressed and coded image frame data by the remote service module, decompressing the compressed and coded image frame data, and detecting and matching the decompressed image frame data by adopting an image recognition algorithm and a model matching algorithm;
and receiving a detection result returned by the remote service module, and judging whether an illegal recording behavior exists according to the detection result.
3. The method of claim 2,
the detection result comprises: a normal state value and/or an abnormal state value;
the receiving of the detection result returned by the remote service module includes: if the detection result shows that the remote service module is abnormal, the detection result returned by the remote service module is an abnormal state value, otherwise, the detection result returned by the remote service module is a normal state value.
4. The method of claim 1,
the generating of the illegal screen recording message event to stop receiving signals comprises the following steps:
and sending an illegal screen recording message event to an event monitoring module, and informing a signal receiving module to stop receiving signals by the event monitoring module.
5. The method of claim 1, further comprising:
detecting whether external camera equipment exists or not, if not, sending a message event to an event monitoring module, receiving the message event by the event monitoring module, searching an event message mapping table according to an index value of the message event, acquiring message event error information, outputting the message event error information to a television display screen, and prompting a user that the current external camera equipment is abnormal in connection.
6. The utility model provides a device of screen is prevented recording by OTT TV outside which characterized in that includes:
the acquisition module is used for acquiring image frame data acquired by external camera equipment;
the judging module is used for judging whether an illegal recording behavior exists according to the image frame data;
and the generating module is used for generating an illegal screen recording message event to stop receiving signals when illegal recording behaviors exist.
7. The apparatus of claim 6,
the judging module is used for carrying out compression coding on the image frame data, sending the image frame data subjected to compression coding to a remote service module, receiving the image frame data subjected to compression coding by the remote service module, decompressing the image frame data subjected to compression coding, and detecting and matching the decompressed image frame data by adopting an image recognition algorithm and a model matching algorithm; and receiving a detection result returned by the remote service module, and judging whether an illegal recording behavior exists according to the detection result.
8. The apparatus of claim 6,
the generation module is used for sending an illegal screen recording message event to the event monitoring module, and the event monitoring module informs the signal receiving module to stop receiving signals.
9. A computer device, comprising: a processor, a memory and a bus, the memory storing machine-readable instructions executable by the processor, the processor and the memory communicating over the bus when a computer device is running, the machine-readable instructions when executed by the processor performing the method of any of claims 1 to 5.
10. A computer-readable storage medium, having stored thereon a computer program which, when executed by a processor, performs the method of any one of claims 1 to 5.
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