CN103780860B - Screen recording method, device and system - Google Patents
Screen recording method, device and system Download PDFInfo
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- CN103780860B CN103780860B CN201410041736.3A CN201410041736A CN103780860B CN 103780860 B CN103780860 B CN 103780860B CN 201410041736 A CN201410041736 A CN 201410041736A CN 103780860 B CN103780860 B CN 103780860B
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Abstract
The embodiment of the invention discloses a screen recording method. The method includes the first step of obtaining anti-counterfeiting codes and frame data from screen recording, wherein the number of the anti-counterfeiting codes is larger than or equal to the frame number of the frame data generated from screen recording, the second step of establishing the mapping relations between the frame data from screen recording and at least one anti-counterfeiting code respectively, and the third step of encapsulating the frame data from screen recording and the mapping relations corresponding to the frame data to be a screen recording file. The embodiment of the invention further discloses a screen recording device and system. The screen recording method, device and system can prevent screen recording from being tampered and ensure the authenticity or integrity of screen recording.
Description
Technical field
The application is related to areas of information technology, more particularly to a kind of film recording method and its corresponding device and system.
Background technology
With developing rapidly for information technology, people can operate various terminal equipment to perform various tasks, then will behaviour
The result for making terminal device is utilized.Such as, daily life, the feelings of work important tool are increasingly becomed in network
Under condition, remote chat can be realized in local operation computer, can be by real-time performance shopping at network etc..Typically, people
When terminal device is operated, terminal device will automatically record operation some of terminal device process data, to record operation
" fact " and corresponding result.The data that these are automatically recorded will will play very important effect in some scenarios,
Such as, some items are proved as evidence.
However, these are described the information data got off during operation terminal device, based on electronic information storage, again
System, the convenience of forwarding, are easily tampered, or occur in transmitting procedure because various cause specifics change, so as to lose
Objectivity and primitiveness have been lost, the application of these information datas has been had influence on.For this purpose, prior art occurs in that film recording technology,
The technology records the process for operating terminal device in the way of " video recording ", solidifies the operation behavior of people, so as to increase
The difficulty distorted.But, distorting difficulty increase can not hinder to distort the generation of phenomenon, above-mentioned in actual application
Mode there is no guarantee that the authenticity and integrity of the screen message of recording.As can be seen here, there is provided a kind of screen trusty
Video recording mechanism plays an important role for the authenticity and integrity for guaranteeing video information.
The content of the invention
To solve above-mentioned technical problem, the embodiment of the present application provide a kind of film recording method and its corresponding device with
System, to guarantee the authenticity or integrality of film recording information.
The film recording method that the embodiment of the present application is provided includes：
The frame data of security code and film recording are obtained, the number of the security code is more than or equal to film recording generation
The frame number of frame data；
The mapping relations set up respectively between each frame data of film recording and at least one security code；
Each frame data of film recording and the corresponding mapping relations of each frame data are encapsulated as into film recording file.
Preferably, the mapping relations tool set up respectively between each frame data of film recording and at least one security code
Body includes：
At least one security code is added in the data segment of each frame data of film recording, or, it is each of film recording
Frame data are respectively allocated at least one security code；
It is described that the frame data of film recording and the corresponding mapping relations of each frame data are encapsulated as into film recording file is concrete
Including：
The each frame data for being added with the film recording of security code are encapsulated as into film recording file, or, by film recording
Each frame data and the corresponding security code of each frame data be encapsulated as film recording file.
Preferably, after film recording startup, the temporal information and standard time information in each frame data of film recording
Synchronous, the standard time information includes the time and/or network standard time at national time service center.
Preferably, after film recording startup, the time in showing the security code and/or each frame data with independent window
Information.
Preferably, when the frame data of film recording are obtained, the moment corresponding electronic environment that the frame data are produced is obtained
Information, methods described also includes：
When each frame data of film recording, the corresponding security code of each frame data are encapsulated as into film recording, by each frame number
Enter the film recording file according to corresponding electronic environment Information encapsulation.
It is further preferred that the frame data for obtaining film recording include：
The former frame frame data of acquisition and a later frame frame data are compared, after the former frame frame data are stored,
A later frame frame data are stored relative to the part that former frame frame data change as the frame data of a later frame.
It is further preferred that the frame data for obtaining film recording include：
Create virtual video card to drive, physical display card is mapped；
By the region and content that need in virtual video card screen printing to show, by the region for needing to show and content
Data assembling Framed Data.
Present invention also provides a kind of film recording device, the device includes：Acquiring unit, map unit and encapsulation are single
Unit, wherein：
The acquiring unit, for obtaining the frame data of security code and film recording, the number of the security code be more than or
Equal to the frame number of the frame data of film recording；
The map unit, for setting up the mapping between each frame data of film recording and at least one security code respectively
Relation；
The encapsulation unit, for each frame data of film recording and the corresponding mapping relations of each frame data to be encapsulated as into screen
Curtain video file.
Preferably, the map unit includes adding subelement or distribution subelement, the additional subelement, in screen
At least one security code, the distribution subelement, for for film recording are added in the data segment of each frame data of curtain video recording
Each frame data are respectively allocated at least one security code；
The encapsulation unit is encapsulated as film recording specifically for each frame data of the film recording by security code is added with
File, or each frame data of film recording and the corresponding security code of each frame data are encapsulated as into film recording file.
Present invention also provides a kind of film recording system.The system includes：Server and client side, the server bag
Security code signal generating unit is included, the client includes video record unit, request unit, receiving unit, map unit and encapsulation unit,
Wherein：
The video record unit, for recording a video to screen, generates the frame data of film recording；
The request unit, for sending to server security code request message is obtained；
The receiving unit, for receiving security code；
The map unit, for setting up the mapping between each frame data of film recording and at least one security code respectively
Relation；
The encapsulation unit, for each frame data of film recording and the corresponding mapping relations of each frame data to be encapsulated as into screen
Curtain video file.
The mapping relations that the embodiment of the present application is set up between the frame data of film recording and security code, and in film recording text
The security code is encapsulated in part, because security code can play anti-fake effect, if in actual application, there occurs that screen is recorded
As the change of file, then can be distorted to be confirmed whether really to there occurs by verifying whether security code changes, so as to ensure screen
The authenticity of curtain video file.It is additionally, since every frame data and both maps at least one security code, can be checked by frame one by one
Whether distort, so as to ensure authenticity of the film recording file per frame data, thus ensure that whole film recording file
Integrality.Additionally, every frame data of film recording have time attribute and electronic environment parameter information in the embodiment of the present application,
So that whole film recording file meets the use requirement as purposes such as evidences.Further, due to the embodiment of the present application
Mapped using virtual video card, only intercept the screen area of change, improve the operating efficiency of film recording file generated, reduced
Memory space.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments described in application, for those of ordinary skill in the art, on the premise of not paying creative work,
Can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is the embodiment flow chart of the method for the film recording of the application；
Fig. 2 is the independent window schematic diagram for showing security code and temporal information of the application；
Fig. 3 is the structured flowchart of the embodiment of the device of the film recording of the application；
Fig. 4 is the structured flowchart of the embodiment of the system of the film recording of the application.
Specific embodiment
In order that those skilled in the art more fully understand the technical scheme in the application, below in conjunction with the application reality
The accompanying drawing in example is applied, the technical scheme in the embodiment of the present application is clearly and completely described, it is clear that described enforcement
Example is only some embodiments of the present application, rather than the embodiment of whole.Based on the embodiment in the application, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, should all belong to the application protection
Scope.
Referring to Fig. 1, the flow process of one embodiment of the method for the film recording of the application is the figure shows.The flow process bag
Include：
Step S11：The frame data of security code and film recording are obtained, the number of the security code is recorded more than or equal to screen
As the frame number of the frame data of generation；
After film recording starts, the data with regard to the operational motion on screen can be constantly produced, these data assembling framing
Data are acquired, so as to subsequent treatment.Security code has antiforge function, and it can be locally generated, it is also possible to by network
Server is produced, such as, special security code generator is arranged on far-end server, when film recording terminal needs security code
When, the request for obtaining security code is sent to the far-end server, the security code of generation is sent to screen record by security code generator
As terminal.Under normal circumstances, using far-end server generate security code by the way of because this mode can be effectively prevented by
Tracking, makes others to know the generation rule of security code, so as to obtain security code.The number of security code is recorded with screen
Relation between the frame number of the frame data of picture can set as needed, such as, it is generally the case that need every frame of film recording
Data have corresponding security code, therefore, the number of security code should at least be equal to the frame data of frame data, certainly, be more than
In the case of, can be the corresponding plural security code of a frame data.
Step S12：The mapping relations set up respectively between each frame data of film recording and at least one security code；
Get after the frame data and security code of film recording through abovementioned steps, mapping between the two can be set up
Relation.By the mapping relations, the frame data can be got corresponding false proof when decoding obtains the frame data of frame
Code.
Step S13：Each frame data of film recording and the corresponding mapping relations of each frame data are encapsulated as into film recording text
Part.
Each frame data of film recording are packaged with film recording file for the present embodiment and each frame data are corresponding reflects
Penetrate relation, on the one hand, film recording file is only no longer frame data itself, but include reflecting for each frame data and security code
Relation is penetrated, this mode is that every frame data have stamped uniqueness label, make film recording file when there is situation about distorting, can
With can by obtain corresponding security code again and compare the security code and the security code being encapsulated in film recording file it
Between the similarities and differences verifying whether really to exist " fact " distorted, so as to guarantee the true of film recording by means of this mechanism
Property.On the other hand, the present embodiment " breaks the whole up into parts film recording file ", is that the mapping that each frame data is set up to security code is closed
Whether system, can be distorted, so as to be guaranteed the integrality of whole film recording by means of this mechanism by the verification of frame one by one.
Above-described embodiment needs in step s 12 the mapping set up between each frame data of film recording and security code to close
System, in actual application, can set up mapping relations using various ways.In order to explanation the application's for becoming apparent from
Technical characteristic, exemplarily provides below two kinds of embodiments, on those skilled in the art's here basis, can adopt other
The other modes that without prejudice to the present application purpose is realized, the mode of these extensions is within the protection domain of the application.
One of embodiment：Security code is added in the data segment of each frame data of film recording." frame " has frame structure,
Control section and data segment portion are generally included in the frame structure, the former is used to indicating the control information of this frame, such as frame rises
Beginning position, end position, flag of frame etc., the latter is used to fill the data of the frame.Based on this understanding, can be in the data of every frame
Increase security code in section, the security code that will be got is write among the data segment of each frame.This mode makes the every of film recording
Individual frame data contain in itself security code, then frame data can by the frame for having added security code with the mapping relations of security code
Directly obtain embodiment.Each frame data of film recording are carried out after this " transformation ", conducting frame data are closed with corresponding mapping
During the encapsulation of system, then directly the frame data after " transformation " can be packaged, complete the film recording file after encapsulating and wrap
Each frame data and its corresponding mapping relations are contained.
Additionally, can further be stated that for this embodiment：The application is not particularly limited security code in frame data
Data segment in particular location.That is, security code can be placed on the beginning of the data segment of frame data, it is also possible to
It is mid portion, or ending, as long as the security code more specific location information known when decoding of decoder and additional security code
When more specific location information it is consistent.Specifically, if security code is added at the end of data segment, then in decoded back
During per frame data, the reading to film recording frame data then can be only read at the end of frame data itself, to security code
Reading then only read from the end of frame data itself after the one piece of data that starts of next position.For the ease of knowing
The data itself and security code of other frame data, in actual application, the data of frame data itself can be between security code
Distinguished by arranging flag bit, i.e., the previous position at security code placement location arranges a flag bit（Beginning flag
Position）, when decoder detects the flag bit, that is, know that the one piece of data started from the mark is security code.Similarly, for
When security code is placed on the beginning of data segment, then an end flag bit can be set, when decoder is from the beginning of data segment
Position starts, and when detecting the end flag bit, that is, knows that " data " at the flag bit are security code, the flag bit
" data " afterwards are the data of frame data itself.When security code being placed on to the centre of data segment, then should arrange simultaneously
One beginning flag position and end mark position, when beginning flag position and end mark position is detected, that is, know in two marks
Data between position are security code, and remainder data is the data of frame data itself.It is clear that remove security code can be appended to
In data segment, it is also possible to which security code is appended to into control section, its reason is similar to.
The two of embodiment：Each frame data for film recording are respectively allocated security code, that is to say, that obtain in each frame data
After getting, the security code for getting can be distributed to each frame data, so set up between each frame data and security code and reflect
Penetrate relation, unlike one of this mapping relations and embodiment, which is not directly security code to be placed on into frame data
Among, but independently distribute security code, and when implementing, two storage regions can be set, a storage region is used to deposit
The frame data of storage film recording, another storage region is used to store security code, and ensures the frame number and security code of frame data
Sequence number is consistent.Set up in this way after mapping relations, then can be by each frame data of film recording and each frame data pair
The security code answered is encapsulated as film recording file.
Above two embodiment can respectively have pluses and minuses.For the first embodiment, security code is appended to
Among frame data so as to become a part for frame data, so when film recording file is encapsulated as, each Frame is only existed
Between encapsulation, so as to reduce the complexity of encapsulation, save the time of encapsulation, but, due to needing to put into security code
Among the data segment of frame data, need to open each Frame, increased the difficulty of data frame alignment, in particular decoding process band
Carry out larger difficulty.For second embodiment, due to be between security code and every frame of frame data it is self-existent,
The corresponding relation simply set up between frame data and security code is so only needed to, is opened without a frame by frame data
It is put into security code, it is to avoid the destruction that there may exist to frame data.But, this mode causes follow-up encapsulation to generate screen record
During as file, the encapsulation of film recording frame data being not only related to, and being related to the encapsulation of mapping relations, this is that two classes are different
The encapsulation of property, increased the complexity of encapsulation, extend packaging time.It is individually present based on above two embodiment
Pluses and minuses, in actual application, can be selected as needed, such as, if the frame data of film recording file
When frame number is less, then the first embodiment can be adopted, conversely, then adopting second embodiment.
Above-described embodiment is encapsulated into frame data and corresponding mapping relations among film recording file, due in frame data
Comprising temporal information, then make also to be encapsulated into temporal information in film recording file by encapsulation.But in actual application
In, Jing is commonly present the inaccurate situation of local zone time, and the time is for some purposes of film recording file（Such as, as electricity
Sub- evidence）To and its important, thus it is guaranteed that the accuracy of time can will preferably guarantee the authenticity of film recording file.For
This, the application is preferably after film recording startup, and the temporal information in each frame data of film recording is same with standard time information
Step, standard time information here can be the time at national time service center, or by Network Capture to network standard
Time.In temporal information and standard time information synchronizing process in each frame data are guaranteed, can be realized using various ways,
Such as, before film recording startup, a time calibration is first carried out, after film recording is started, it is ensured that temporal information is walked
Table status, will so make the temporal information in every frame data be correct time information.Additionally, in order that film recording process
It is more directly perceived, the temporal information in security code and each frame data can be shown with independent window（It is shown in Figure 2）, by the time
Information can see the progress of film recording.Certainly, some other control buttons can also be set in the display window, than
Such as, button, stop button etc. are recorded in film recording.
In above-described embodiment, each frame frame data and corresponding mapping relations are encapsulated in film recording file, but,
In actual application, it is also based on other purposes and is encapsulated into other information.Such as, in order to increase the objective of film recording
Property, can be being encapsulated into the electronic environment information at current time in film recording file.Electronic information reflects film recording
During state, can specifically include hosting system status（Such as, daily record, process, operating system etc.）, hardware parameter（Than
Such as, RAM card, CPU sequence numbers, hard disk serial number, network interface card Mac addresses）, network communication（Such as, IP address, website are put on record letter
Breath, website route）Etc. information.By the way that the objective of film recording will be enhanced in electronic environment Information encapsulation to film recording file
Property, improve the confidence level of film recording.
The acquisition modes of frame data during film recording are not limited in above-described embodiment, although so and without prejudice to
The realization of the present application purpose, but in actual application, how to obtain frame data and obtain which type of frame data
It is the key factor for concerning the efficiency to film recording process.Below further explaination is made with regard to the two problems.
Under normal circumstances, frame data can be on a frame-by-frame basis obtained during film recording, after often obtaining a frame data
Put it in temporal cache so as to subsequent treatment.But, when needing the frame number for obtaining frame data quite big, per frame data all
Completely obtain and store, substantial amounts of memory space will be taken, when reading substantial amounts of cpu resource will be expended.In fact,
As a continuous film recording process, per being not completely self-contained discrete data between frame data, adjacent frame data
Between have association, it is this association be embodied in before and after two frame data both have different data divisions, latter frame data relative to
Previous frame data also have identical data, to these identical Data duplications, repeatedly storage, will waste substantial amounts of storage money
Source, for this purpose, the application can be compared previous frame data and latter frame data after two adjacent frame data are got,
Differential section of the latter frame data relative to previous frame data is determined, then after the previous frame data of full storage, only by after
One frame differential section is stored.In decoding, after restoring previous frame data, you can according to previous frame data and storage
The data convert of differential section goes out the data of a later frame.Storage resource can in large quantities be reduced in this way, such as, if
The change of two frame data is little, then only store several bytes.
Above describe and obtain which type of frame data for the saving of storage resource, obtain under detailed description below
Take the mode of frame data.During traditional film recording, the form of film recording data is DBI（Dvevice-
Independent Bitmap）, the technology of employing is API film recording technologies, and the technology calls the image GDI letters under User space
Number realizes screenshotss, and detailed process is：Called using function in all gdi32.dll to User space in API technical intercept systems,
The area coordinate that screen picture refreshes or changes is obtained, then using the function bitblt in API by after refreshing or change
The ddb form bitmaps of screen area copy internal memory to, then, using function getbits by ddb bitmap-converteds be dbi bitmaps, most
After the operation such as be compressed, store or transmit.But, there are shortcomings in this mode for obtaining number frame data：（1）With
Under the state of family, due to frequently calling system function, the load excessive of CPU will be caused, so as to have influence on systematic function；（2）To making
With the application program of DirectDraw modes, because it directly manipulates display memory, the transfer of hardware position block, hardware overlap and exchanges
The image manipulations such as surface, avoid GDI and call, and now still call the image GDI functions under User space come real using API technologies
Existing screenshotss make API technical failures, it is impossible to catch screen change, and some of film recording key message may be caused to lose.For
This, the application adopts virtual video card mechanism, first creates virtual video card and drives, and physical display card is mapped, and using double internal memories
Mechanism, the screen message of real-time capture is stored to two different regions simultaneously：A information is used for normal screen display,
Another information is intercepted by virtual video card, by the region of the needs display for intercepting and the data assembling Framed Data of content.It is this
Mode is the operation on direct mapping hardware layer video card, can receive and filter all of screen display, prevents application program from using
DirectDraw and other display actuation techniques modes get around, so as to ensure the integrality of film recording information.
The above describes the film recording method of the application in detail, correspondingly, present invention also provides a kind of screen
The embodiment of recording apparatus.Referring to Fig. 3, the composition structure of a film recording device embodiment is the figure shows.The device bag
Include：Acquiring unit 301, map unit 302 and encapsulation unit 303, wherein：
Acquiring unit 301, for obtaining the frame data of security code and film recording, the number of the security code is more than or waits
In the data frame number of film recording；
Map unit 302, for setting up the mapping between each frame data of film recording and at least one security code respectively
Relation；
Encapsulation unit 303, for each frame data of film recording and the corresponding mapping relations of each frame data to be encapsulated as into screen
Curtain video file.
Said apparatus embodiment sets up mapping relations between each frame data and security code of film recording, and in screen record
As encapsulating the security code in file, because security code can play anti-fake effect, if in actual application, there occurs screen
The change of curtain video file, then can be distorted, so as to protect by verifying whether security code changes to be confirmed whether really to there occurs
The authenticity of card film recording file.It is additionally, since every frame data and both maps at least one security code, can be by frame one by one
Whether verification distorts, and so as to ensure authenticity of the film recording file per frame data, thus ensure that whole film recording
The integrality of file.
Map unit in said apparatus embodiment is set up by the way of mapping in actual application using different, its
Internal composition structure may change accordingly.Such as, map unit 302 can include an additional subelement 3021,
For adding at least one security code in the data segment of each frame data of film recording, so can avoid individually carrying out false proof
The storage of code, directly can encapsulate each frame data for being added with the film recording of security code when encapsulation unit is in concrete encapsulation
For film recording file.In addition to this mode for realizing map unit, map unit can also include a distribution subelement, use
At least one security code is respectively allocated in each frame data for film recording, encapsulation unit records screen when being specifically packaged
Each frame data and the corresponding security code of each frame data of picture are encapsulated as film recording file.Both implementations are various excellent scarce
Point, concrete condition can be found in the description of preceding method part, to avoid repeating, no longer superfluous words here.
Additionally, a kind of present invention also provides embodiment of film recording system.Referring to Fig. 4, screen record is the figure shows
As the composition structure of system embodiment, the system includes：Server 41 and client 42, the server 41 is given birth to including security code
Into unit 411, the client 42 includes video record unit 421, request unit 422, receiving unit 423, map unit 424 and envelope
Dress unit 425, wherein：
Video record unit 421, for recording a video to screen, generates the frame data of film recording；
Request unit 422, for sending to server security code request message is obtained；
Receiving unit 423, for receiving security code；
Map unit 424, for setting up the mapping between each frame data of film recording and at least one security code respectively
Relation；
Encapsulation unit 425, for each frame data of film recording and the corresponding mapping relations of each frame data to be encapsulated as into screen
Curtain video file.
The system embodiment can equally obtain the function of preceding method embodiment and device embodiment.And, the system
The security code of embodiment is generated on the server, and this favorably ensure that the file of film recording process generation as special-purpose
Fairness.After the security code signal generating unit of server generates security code, security code can be stored with temporal cache or specially, so
When needing to carry out the checking of each frame data in film recording, security code can be obtained from server, it is ensured that security code
Authenticity, and then it is advantageously ensured that the authenticity and integrity of film recording file.
It should be noted that for convenience of description, it is that various units point are divided into function when description apparatus above, system
Do not describe.Certainly, can the function of each unit is real in same or multiple softwares and/or hardware when the application is implemented
It is existing.As seen through the above description of the embodiments, those skilled in the art can be understood that the application can be by
Software adds the mode of required general hardware platform to realize.Additionally, the embodiment and embodiment in this specification is various
Mode of texturing is described by the way of progressive, and identical similar part is mutually referring to i.e. between each embodiment and its mode of texturing
Can, what the technical scheme of each embodiment or mode of texturing was stressed is the difference real with other.Especially for dress
Put, for system embodiment, because it is substantially similar to embodiment of the method, so describe fairly simple, related part referring to
The part explanation of embodiment of the method.Embodiments described above is only schematic, wherein described as separation unit
The unit of part explanation can be or may not be physically separate, can be as the part that unit shows or also may be used
Not being physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Can be according to reality
The purpose for needing to select some or all of module therein to realize this embodiment scheme.Those of ordinary skill in the art exist
In the case of not paying creative work, you can to understand and implement.
The application can be used in numerous general or special purpose computing system environments or configuration.For example：Personal computer, service
Device computer, handheld device or portable set, multicomputer system, based on the system of microprocessor, programmable consumption electricity
Sub- equipment, network PC, minicom, mainframe computer, including the DCE etc. of any of the above system or equipment
Deng.
The application can be described in the general context of computer executable instructions, such as program
Module.Usually, program module includes execution particular task or realizes routine, program, object, the group of particular abstract data type
Part, data structure etc..The application can also be in a distributed computing environment put into practice, in these DCEs, by
The remote processing devices connected by communication network are performing task.In a distributed computing environment, program module can be with
In local and remote computer-readable storage medium including including storage device.
The above is only the specific embodiment of the application, it is noted that for the ordinary skill people of the art
For member, on the premise of without departing from the application principle, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as the protection domain of the application.
Claims (8)
1. a kind of film recording method, it is characterised in that methods described includes：
The frame data of security code and film recording are obtained, the number of the security code is more than or equal to the frame number that film recording is produced
According to frame number；
The mapping relations set up respectively between each frame data of film recording and at least one security code, think that every frame data are stamped
Uniqueness label；
Each frame data of film recording and the corresponding mapping relations of each frame data are encapsulated as into film recording file；
Wherein, the mapping relations set up respectively between each frame data of film recording and at least one security code are specifically wrapped
Include：
At least one security code is added in the data segment of each frame data of film recording, or, it is each frame number of film recording
According at least one security code is respectively allocated, the security code is mutually independent with each frame data；
It is described the frame data of film recording and the corresponding mapping relations of each frame data are encapsulated as into film recording file to specifically include：
The each frame data for being added with the film recording of security code are encapsulated as into film recording file, or, by each of film recording
Frame data and the corresponding security code of each frame data are encapsulated as film recording file.
2. method according to claim 1, it is characterised in that after film recording starts, each frame data of film recording
In temporal information it is synchronous with standard time information, the standard time information includes the time at national time service center and/or net
The network standard time.
3. method according to claim 2, it is characterised in that after film recording starts, is shown with independent window described in
Temporal information in security code and/or each frame data.
4. the method according to any one of claims 1 to 3, it is characterised in that in the frame data for obtaining film recording
When, the moment corresponding electronic environment information that the frame data are produced is obtained, methods described also includes：
When each frame data of film recording and the corresponding mapping relations of each frame data are encapsulated as into film recording file, by each frame
The corresponding electronic environment Information encapsulation of data enters the film recording file.
5. method according to claim 4, it is characterised in that the frame data of the acquisition film recording include：
The former frame frame data of acquisition and a later frame frame data are compared, after the former frame frame data are stored, by after
One frame frame data are stored relative to the part that former frame frame data change as the frame data of a later frame.
6. method according to claim 4, it is characterised in that the frame data of the acquisition film recording include：
Create virtual video card to drive, physical display card is mapped；
By the region and content that need to show in virtual video card screen printing, by the region for needing to show and the data of content
Assembling Framed Data.
7. a kind of film recording device, it is characterised in that described device includes：Acquiring unit, map unit and encapsulation unit, its
In：
The acquiring unit, for obtaining the frame data of security code and film recording, the number of the security code is more than or equal to
The frame number of the frame data of film recording；
The map unit, the mapping for setting up respectively between each frame data of film recording and at least one security code is closed
System, thinks that every frame data stamp uniqueness label；
The encapsulation unit, for each frame data of film recording and the corresponding mapping relations of each frame data to be encapsulated as into screen record
As file；
Wherein, the map unit includes adding subelement or distribution subelement, the additional subelement, in film recording
Each frame data data segment in add at least one security code, the distribution subelement, for for each frame number of film recording
According at least one security code is respectively allocated, the security code is mutually independent with each frame data；
The encapsulation unit, specifically for each frame data of the film recording by security code is added with film recording text is encapsulated as
Part, or each frame data of film recording and the corresponding security code of each frame data are encapsulated as into film recording file.
8. a kind of film recording system, it is characterised in that the system includes：Server and client side, the server includes anti-
Pseudo-code signal generating unit, the client includes video record unit, request unit, receiving unit, map unit and encapsulation unit, its
In：
The video record unit, for recording a video to screen, generates the frame data of film recording；
The request unit, for sending to server security code request message is obtained；
The receiving unit, for receiving security code；
The map unit, the mapping for setting up respectively between each frame data of film recording and at least one security code is closed
System, thinks that every frame data stamp uniqueness label；
The encapsulation unit, for each frame data of film recording and the corresponding mapping relations of each frame data to be encapsulated as into screen record
As file；
Wherein, the map unit includes adding subelement or distribution subelement, the additional subelement, in film recording
Each frame data data segment in add at least one security code, the distribution subelement, for for each frame number of film recording
According at least one security code is respectively allocated, the security code is mutually independent with each frame data；
The encapsulation unit, specifically for each frame data of the film recording by security code is added with film recording text is encapsulated as
Part, or each frame data of film recording and the corresponding security code of each frame data are encapsulated as into film recording file.
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| CN201410041736.3A CN103780860B (en) | 2014-01-28 | 2014-01-28 | Screen recording method, device and system |
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| CN103780860B true CN103780860B (en) | 2017-04-26 |
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| CN105007466B (en) * | 2015-07-23 | 2019-04-19 | 熊建民 | Prevent the monitor video recording system and its method for recording of editing |
| CN106055205B (en) * | 2016-05-30 | 2019-10-29 | 北京金山安全软件有限公司 | screen recording method and device |
| CN109324911A (en) * | 2018-09-21 | 2019-02-12 | 广州长鹏光电科技有限公司 | User behavior detects smart screen automatically and grabs screen system |
Citations (2)
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| JP2005209195A (en) * | 2004-01-19 | 2005-08-04 | Samsung Electronics Co Ltd | Embedded system using binary position information and remote software downloading method therein |
| CN102831163A (en) * | 2012-07-20 | 2012-12-19 | 江苏缨思贝睿物联网科技有限公司 | Data transfer method and data transfer system |
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| US5799083A (en) * | 1996-08-26 | 1998-08-25 | Brothers; Harlan Jay | Event verification system |
| GB2418793A (en) * | 2004-10-04 | 2006-04-05 | Democracy Systems Inc | Validating electronic voting by analysing sampled frames of a user interface |
| IT1404061B1 (en) * | 2011-02-15 | 2013-11-08 | Sisvel Technology Srl | METHOD FOR THE ACQUISITION, STORAGE AND FRUITION OF DATA RELATING TO A THREE-DIMENSIONAL VIDEO FLOW AND ITS VIDEO PROCESSING |
| CN103037144A (en) * | 2011-10-10 | 2013-04-10 | 虹彩模识(北京)科技有限公司 | Encrypted digital video equipment |
| CN102821308B (en) * | 2012-06-04 | 2014-11-05 | 西安交通大学 | Multi-scene streaming media courseware recording and direct-broadcasting method |
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| JP2005209195A (en) * | 2004-01-19 | 2005-08-04 | Samsung Electronics Co Ltd | Embedded system using binary position information and remote software downloading method therein |
| CN102831163A (en) * | 2012-07-20 | 2012-12-19 | 江苏缨思贝睿物联网科技有限公司 | Data transfer method and data transfer system |
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