CN106851338A - The safe transmission method and system of a kind of multimedia broadcasting video - Google Patents
The safe transmission method and system of a kind of multimedia broadcasting video Download PDFInfo
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- CN106851338A CN106851338A CN201611262080.3A CN201611262080A CN106851338A CN 106851338 A CN106851338 A CN 106851338A CN 201611262080 A CN201611262080 A CN 201611262080A CN 106851338 A CN106851338 A CN 106851338A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims abstract description 48
- 238000001514 detection method Methods 0.000 claims description 12
- 238000012546 transfer Methods 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000010365 information processing Effects 0.000 claims description 3
- 230000005055 memory storage Effects 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 9
- 238000013461 design Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000012550 audit Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
Classifications
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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
-
- 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
- H04N21/21—Server components or server architectures
- H04N21/222—Secondary servers, e.g. proxy server, cable television Head-end
-
- 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
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
- H04N21/41407—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance embedded in a portable device, e.g. video client on a mobile phone, PDA, laptop
-
- 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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
-
- 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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream decryption
-
- 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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/61—Network physical structure; Signal processing
-
- 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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/61—Network physical structure; Signal processing
- H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
- H04N21/6131—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via a mobile phone network
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- General Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention provides the safe transmission method and system of a kind of multimedia broadcasting video, the safe transmission method includes：Judge whether gateway is in the signal coverage areas of MBMS service device；The multimedia broadcasting video is cut into N number of frame of video section by the MBMS service device；By last frame of video of n-th frame of video section and decryption file association, encrypted video file is formed, and send to the gateway；The gateway is demodulated according to the demodulation method with the MBMS service device to file, and transmits to the terminal device；After the terminal device is decrypted to file, the multimedia broadcasting video is played.The present invention can effectively reduce the cost of terminal device; simultaneously effectively video-encryption has been carried out in data transmission procedure; in case receive video by rogue attacks, distort, download and piracy etc., the transmission to CMMB video has carried out effective protection, realizes safe transmission.
Description
Technical field
The present invention relates to safety communication technology field, the safe transmission method of more particularly to a kind of multimedia broadcasting video and
System.
Background technology
With the popularization and application of China Mobile's multimedia broadcasting technology, consumers in general can by mobile phone, PDA, MP3,
The multiple terminal equipment such as MP4, computer, realizes that " air-ground " one covering, the whole nation roam to watch numeral using S-band satellite-signal
TV listens to digital broadcasting.
CMMB (CMMB) is that, by using digital coding, by wireless transmission, the mobile mode for receiving is entered
The propagation of row TV programme.CMMB supports mobile reception, in signal coverage areas, can be by such as hand
The terminal devices such as machine, MP4 players, GPS receive the TV programme such as news, information, amusement whenever and wherever possible, to meet different user
Various demands.
In actual use, terminal device is when in use, it is necessary to which installing CMMB modulation chips can just have correctly received
Multimedia service, if using multiple terminal devices simultaneously, needs to be required to install CMMB modulation chips in each terminal device,
Equipment cost is increased, additionally, terminal device is when multimedia service is received, it is necessary to cover in the signal of CMMB
In the range of, otherwise will be unable to receive, this will seriously limit the use that terminal device receives multimedia service.Therefore, existing special
Multimedia broadcasting service information transmission method and gateway device disclosed in sharp Application No. 200810188868.3, the technology is not only
Effectively overcoming terminal device must install the defect of CMMB modulation chips, and terminal device equipment without covering model in CMMB
Multimedia service can effectively be received by wired or wireless network in enclosing, lacked this technique improves the transmission that CMMB is present
Fall into, but still there are some problems in the technology, for example, being caused the features such as the opening of multimedia service, sharing, dynamic
The safety of the network information receives serious threat and interference, there are rogue attacks, distorts, downloads and the safety such as piracy is asked
Topic, although encrypted in the technology, but encryption technology is relatively simple, it is impossible to stolen problem is avoided, therefore, being badly in need of
A kind of safe transmission method and system for transmitting safer multimedia broadcasting video of exploitation.
The content of the invention
The features such as the opening, sharing, the dynamic that solve existing multimedia service, is so that the safety of the network information
Serious threat and interference is received, rogue attacks is there are, is distorted, downloads and the safety problem such as piracy, although in the technology
Encrypted, but encryption technology is relatively simple, it is impossible to the problems such as avoiding stolen, the invention provides a kind of multi-media broadcast
Broadcast the safe transmission method and system of video.
Concrete technical scheme of the present invention is as follows：
The invention provides a kind of safe transmission method of multimedia broadcasting video, the safe transmission method includes following
Step：
S1, judge gateway whether in MBMS service device signal coverage areas, if be in the signal
In overlay area, then terminal device is sent to the MBMS service device by the gateway and plays multimedia broadcasting
The request of video；
S2, the MBMS service device cut some frame of video in the multimedia broadcasting video according to the time period
It is divided into N number of frame of video section, wherein N >=1；
S3, by n-th frame of video section last frame of video with decryption file association, formed encrypted video file, and
The decryption file and the encrypted video file are sent to the gateway simultaneously；
S4, the gateway are according to the demodulation method with the MBMS service device to decryption file and the institute
State encrypted video file to be demodulated, and transmitted to the terminal device by Wireless/wired；
After S5, the terminal device are decrypted to the decryption file and the encrypted video file, play described many
Media broadcast video.
Further, in step S1, judge whether gateway is in the signal coverage areas of MBMS service device,
Specific method includes：
S1-1, the gateway are spaced in preset time period and send heartbeat detection to the MBMS service device
Bag；
If S1-2, the MBMS service device receive the heartbeat detection bag, the gateway is in
The feedback information of the signal coverage areas is sent to the gateway.
Further, in step S2, arranged according to reproduction time order comprising several respectively in each described frame of video section
The frame of video of sequence.
Further, in step S3, last frame of video of n-th frame of video section and decryption file association are formed
Encrypted video file, and the decryption file and the encrypted video file are sent to the gateway simultaneously, specific side
Method includes：
S3-1, the MBMS service device memory storage decrypt file, the decryption file include spring decryption frame
And with the spring decryption corresponding deciphering information of frame, the display picture of the spring decryption frame is provided with described for being input into
The deciphering input area of deciphering information；
S3-2, last frame of video of n-th frame of video section associate with spring decryption frame, formation encrypted video is literary
Part；
S3-3, the encrypted video file and the decryption file are sent to the gateway simultaneously.
Further, in step S3-3, the MBMS service device is through IP unicast transmission means by the solution ciphertext
Part and the encrypted video file are sent to the gateway, and the IP unicast transmission means is internet unicast transmission side
Formula.
Further, in step S5, the terminal device is solved to the decryption file and the encrypted video file
After close, the multimedia broadcasting video is played, specific method is：
When S5-1, the broadcasting multimedia broadcasting video, the terminal device bounces in the multimedia broadcasting video
The deciphering information being input into the display picture of the spring decryption frame for going out；
S5-2, the deciphering information is audited, if information is correct, continue to play the N+1 frame of video section, if
Information errors, then video playback position jumps to head, and stops playing.
Present invention also offers a kind of secure transmission system of multimedia broadcasting video, including MBMS service device,
And the gateway that is communicated with the MBMS service device and some communicated by Wireless/wired with the gateway
The terminal device of news；
The MBMS service device includes memory module and the signal coverage areas communicated with the memory module
Judge module, request receiving module, video slicing module, encrypting module, transport module, wherein,
Be stored with decryption file in the memory module；The signal coverage areas judge module is used to judge gateway
Whether the signal coverage areas of MBMS service device are in；The request receiving module is led to for receiving the terminal device
Cross the gateway and send the request for playing multimedia broadcasting video；The video slicing module is used for institute according to the time period
State some frame of video in multimedia broadcasting video and be cut into N number of frame of video section, wherein N >=1；The encrypting module is used for the
Last frame of video and the decryption file association of N number of frame of video section, form encrypted video file；The transport module is used
Sent simultaneously to the gateway in by the decryption file and the encrypted video file；
The gateway includes the information receiving module, message processing module, the information sending module that communicate, the letter
Breath receiver module is used to receive the decryption file and the encrypted video file that the transport module sends；At described information
Reason module is used for according to the demodulation method with the MBMS service device to the decryption file and encrypted video text
Part is demodulated；Described information sending module be used for by demodulation after the decryption file and the encrypted video file pass through nothing
Line/wire transmission is to the terminal device；
The terminal device includes the deciphering module and playing module that communicate, and the deciphering module is used for the decryption
File and the encrypted video file are decrypted；The multimedia broadcasting video after the playing module is used for decryption enters
Row is played.
Further, the signal coverage areas judge module includes the heartbeat packet transmitting element, the feedback information that communicate
Receiving unit；
The heartbeat packet transmitting element is used to be spaced in preset time period to the MBMS service device transmission heart
Jump detection bag；The feedback information receiving unit is used to receive at the gateway that the MBMS service device sends
In the feedback information of the signal coverage areas.
Further, the encrypting module includes the reading unit, the associative cell that are communicated with the memory module, described
Reading unit is used to read the decryption file in the memory module, and sends to the associative cell, the association table
Unit is used to associate last frame of video of n-th frame of video section with the spring decryption frame in the decryption file, is formed and added
Close video file.
Further, the deciphering module includes the input block, judging unit, the jump-transfer unit that communicate, the input
Unit is used for the deciphering being input on the multimedia broadcasting video is hit by a bullet the display picture of the spring decryption frame jumped out
Information；The judging unit is used to audit the deciphering information；If information is correct, the jump-transfer unit is used for will
Video playback position jumps to the N+1 frame of video section and continues to play, if information errors, the jump-transfer unit is used for video
Play position jumps to head, and stops playing.
Beneficial effects of the present invention are as follows：Compared with prior art, the present invention provide method can make terminal device without
CMMB video is obtained by need to possessing the chip of demodulated signal, terminal can effectively be reduced by gateway and set
Standby cost, while effectively carried out video-encryption in data transmission procedure, in case receive video by rogue attacks, distort,
Download and piracy etc., the transmission to CMMB video has carried out effective protection, realizes safe transmission, additionally, should
System design is simple, it is only necessary to demodulation chip is set on gateway, while video is set on MBMS service device adding
Secret skill art is the safe transmission for being capable of achieving CMMB video, and structure design is simple, is easy to multimedia broadcasting video
Effectively transmission and application.
Brief description of the drawings
Fig. 1 is a kind of method flow schematic diagram of the safe transmission method of the multimedia broadcasting video described in embodiment 1；
Fig. 2 illustrates for the flow of step S1 in a kind of safe transmission method of the multimedia broadcasting video described in embodiment 2
Figure；
Fig. 3 illustrates for the flow of step S3 in a kind of safe transmission method of the multimedia broadcasting video described in embodiment 2
Figure；
Fig. 4 illustrates for the flow of step S5 in a kind of safe transmission method of the multimedia broadcasting video described in embodiment 3
Figure；
Fig. 5 is a kind of structure connection diagram of the secure transmission system of the multimedia broadcasting video described in embodiment 4；
Fig. 6 is a kind of structured flowchart of the secure transmission system of the multimedia broadcasting video described in embodiment 4；
Fig. 7 is signal coverage areas judgement in a kind of secure transmission system of the multimedia broadcasting video described in embodiment 5
The structured flowchart of module；
Fig. 8 is the structural frames of encrypting module in a kind of secure transmission system of the multimedia broadcasting video described in embodiment 5
Figure；
Fig. 9 is the structural frames of deciphering module in a kind of secure transmission system of the multimedia broadcasting video described in embodiment 5
Figure.
Wherein：1st, MBMS service device；101st, memory module；102nd, signal coverage areas judge module；1021st, the heart
Jump bag transmitting element；1022nd, feedback information receiving unit；103rd, request receiving module；104th, video slicing module；105th, encrypt
Module；1051st, reading unit；1052nd, associative cell；106th, transport module；2nd, gateway；201st, information receiving module；
202nd, message processing module；203rd, information sending module；3rd, terminal device；301st, deciphering module；3011st, input block；3012、
Judging unit；3013rd, jump-transfer unit；302nd, playing module.
Specific embodiment
The present invention is described in further detail with following examples below in conjunction with the accompanying drawings.
Embodiment 1
As shown in figure 1, the embodiment of the present invention 1 provides a kind of safe transmission method of multimedia broadcasting video, the peace
Full transmission method is comprised the following steps：
S1, first determine whether gateway 2 whether in MBMS service device 1 signal coverage areas, if be in institute
State in signal coverage areas, then terminal device 3 is sent to the MBMS service device 1 by the gateway 2 and played
The request of multimedia broadcasting video；
Gateway 2 needs to be arranged in the signal coverage areas of MBMS service device 1, could effectively receive movement
Multimedia broadcast singal, the gateway 2 is used to receive CMMB video, then by wirelessly or non-wirelessly mode
Terminal device 3 is issued, terminal device 3 can be not arranged in the signal coverage areas of CMMB server 1, also may be used
To be arranged in its signal coverage areas, as long as can be connected with the communication of gateway 2.
S2, the MBMS service device 1 are according to the time period by some frame of video in the multimedia broadcasting video
It is cut into N number of frame of video section, wherein N >=1；At least there is 1 frame of video in each frame of video section, can be multiple, each is regarded
Frequency frame is respectively provided with certain reproduction time sequentially, is sequentially unable to entanglement, once entanglement, it is possible to cause video playback chaotic.
S3, by n-th frame of video section last frame of video with decryption file association, formed encrypted video file, and
The decryption file and the encrypted video file are sent to the gateway 2 simultaneously；Decryption file is with the shape of frame of video
Formula associate with by last frame of video of n-th frame of video section, when last of video playback to n-th frame of video section is regarded
During frequency frame, that is, the frame of video of the decryption file of association is played, could only continue to play after the decryption file decryption, if the solution
Ciphertext part does not decrypt then video and stops playing, and the encryption to video is effectively played, so as to form encrypted video file.
Encrypted video file is modulated by CMMB before being transmitted, and it can be digital television program video data or numeral
Broadcast program video data.
S4, the gateway 2 according to the demodulation method with the MBMS service device 1 to it is described decryption file and
The encrypted video file is demodulated, and is transmitted to the terminal device 3 by Wireless/wired；The multimedia broadcasting is regarded
Frequency is CMMB data, and multimedia broadcasting video is demodulated by gateway 2, is sent after demodulation to terminal device 3, demodulation
Operation can be completed by installing CMMB demodulation chips in the gateway 2.
The mode being wirelessly transferred can be bluetooth, infrared or WIFI modes, and concrete mode can be according to user's request or net
Depending on network actual conditions, infrared mode advantage of lower cost, bluetooth approach cost is of a relatively high, but data transmission rate compared with
Hurry up, for first two mode, WIFI modes coverage is maximum, and message transmission rate is most fast, attachable user's end
End quantity is most, but cost highest.
Wired mode can make Ethernet mode.
After S5,3 pairs, the terminal device decryption file and the encrypted video file are decrypted, play described many
Media broadcast video.
Terminal device 3 needs the multimedia video after the demodulation to reception to be decrypted treatment, is regarded after decryption processing
Frequency can play, and otherwise cannot effectively be played.
Terminal device 3 can be the one of which in mobile phone, PDA, MP3, MP4, digital camera or notebook computer etc..
The safe transmission method of the multimedia broadcasting video that the present invention is provided can not only will many by gateway 2 simultaneously
Media broadcast video is sent to multiple terminal devices 3, and the security of video is can effectively ensure that in transmitting procedure, to video
Effective encryption is carried out.
Embodiment 2
As shown in Fig. 2 the embodiment of the present invention 2 is further defined on the basis of embodiment 1, in step S1, clothes are judged
Whether business gateway 2 is in the signal coverage areas of MBMS service device 1, and specific method includes：
S1-1, the gateway 2 are spaced in preset time period and send heartbeat inspection to the MBMS service device 1
Survey bag；
If S1-2, the MBMS service device 1 receive the heartbeat detection bag, at the gateway 2
Sent to the gateway 2 in the feedback information of the signal coverage areas.
Gateway 2 constantly sends heartbeat detection bag, if many matchmakers as client terminal to MBMS service device 1
Body broadcasting server 1 can receive the heartbeat detection bag, it was demonstrated that the signal cover that it is in MBMS service device 1 it
It is interior, if MBMS service device 1 does not receive heartbeat detection bag, prove that the gateway 2 is not located at multimedia broadcasting clothes
It is engaged within the range of signal of device 1, therefore, not only can be used to judge the state of gateway 2, Er Qieneng by heartbeat detection bag
It is enough come recognize its whether in MBMS service device 1 signal cover within.
It should be further stated that, in step S2, respectively comprising several according to broadcasting in each described frame of video section
The frame of video of time sequencing sequence.
As shown in figure 3, further, in step S3, last frame of video of n-th frame of video section is closed with decryption file
Connection, forms encrypted video file, and the decryption file and the encrypted video file are sent to the gateway simultaneously
2, specific method includes：
S3-1, the memory storage of MBMS service device 1 decrypt file, the decryption file include spring decryption frame
And with the spring decryption corresponding deciphering information of frame, the display picture of the spring decryption frame is provided with described for being input into
The deciphering input area of deciphering information；Spring decryption frame is identical with the ordinary video frame in frame of video section, and its frame of video is drawn
The region for being input into deciphering information is shown on face, the only deciphering information input of terminal device 3 is correct, can just enter
Row video playback, otherwise will be unable to play video.
S3-2, last frame of video of n-th frame of video section associate with spring decryption frame, formation encrypted video is literary
Part；When last frame of video of n-th frame of video section is played to, automatic jump on spring decryption frame associated with it,
Need for spring decryption frame to be decrypted treatment, cannot otherwise play video.
S3-3, the encrypted video file and the decryption file are sent to the gateway 2 simultaneously.Transmission of video
When, encrypted video file is only conciliate into ciphertext part and is sent to gateway 2 simultaneously, it is necessary to same after gateway 2 is demodulated
When two files are sent to mobile device, decryption of video cannot can otherwise be carried out video-see.
In the above-mentioned method being encrypted to video, the safe transmission of multimedia broadcasting video is effectively ensured, has prevented
Video is stolen during transmission, distorts, and improves the security of information transfer.
It should be noted that in step S3-3, the MBMS service device 1 is through IP unicast transmission means by the solution
Ciphertext part and the encrypted video file are sent to the gateway 2, and the IP unicast transmission means is passed for internet unicast
Defeated mode.
Embodiment 3
As shown in figure 4, the embodiment of the present invention 3 is on the basis of embodiment 1, in further defining step S5, the end
After the decryption file of end equipment 3 pairs and the encrypted video file are decrypted, the multimedia broadcasting video is played, specifically
Method is：
When S5-1, the broadcasting multimedia broadcasting video, the terminal device 3 bounces in the multimedia broadcasting video
The deciphering information being input into the display picture of the spring decryption frame for going out；
S5-2, the deciphering information is audited, if information is correct, continue to play the N+1 frame of video section, if
Information errors, then video playback position jumps to head, and stops playing.
Above-mentioned decryption of video method, terminal device 3 is when video is played, it is necessary to by the display in the spring decryption frame
Correct deciphering information is input on picture just can otherwise easily cause video playback termination, the operation by decryption of video
The encryption and decryption operation of video is effectively realized, it is easy to use, it is simple to operate, the safety of multimedia video transmission has been effectively ensured
Property.
Embodiment 4
As shown in figure 5, the embodiment of the present invention 4 further provides a kind of secure transmission system of multimedia broadcasting video,
The gateway 2 that is communicated including MBMS service device 1 and with the MBMS service device 1 and it is some with it is described
Gateway 2 passes through the Wireless/wired terminal device 3 for communicating；Terminal device 3 can be mobile phone, PDA, MP3, MP4, number
One of which in camera or notebook computer etc..
As shown in fig. 6, the MBMS service device 1 includes memory module 101 and is communicated with the memory module 101
The signal coverage areas judge module 102 of news, request receiving module 103, video slicing module 104, encrypting module 105, transmission
Module 106, wherein,
Be stored with decryption file and video file in the memory module 101；The signal coverage areas judge module 102
For judging whether gateway 2 is in the signal coverage areas of MBMS service device 1, only gateway 2 is in letter
In number overlay area, the transmission of multimedia video is just can guarantee that；The request receiving module 103 is used to receive the terminal device
3 send the request for playing multimedia broadcasting video by the gateway 2；The video slicing module 104 be used for according to when
Between section some frame of video in the multimedia broadcasting video are cut into N number of frame of video section, wherein N >=1；The encrypting module
105 are used to, by last frame of video and the decryption file association of n-th frame of video section, form encrypted video file；Institute
Transport module 106 is stated for the decryption file and the encrypted video file to be sent to the gateway 2 simultaneously；
The gateway 2 includes the information receiving module 201, the message processing module 202, information sending module that communicate
203, described information receiver module 201 is used to receive the decryption file of the transmission of the transport module 106 and the encryption is regarded
Frequency file；Described information processing module 202 is used for according to the demodulation method with the MBMS service device 1 to the decryption
File and the encrypted video file are demodulated, and described information processing module 202 is preferably CMMB demodulation chips；Described information
Sending module 203 be used for demodulation after the decryption file and the encrypted video file transmitted to institute by Wireless/wired
State terminal device 3；
The terminal device 3 includes the deciphering module 301 and playing module 302 that communicate, and the deciphering module 301 is used for
The decryption file and the encrypted video file are decrypted；The playing module 302 be used for decryption after it is described many
Media broadcast video is played out.
Not only structure design is simple for the secure transmission system of the multimedia broadcasting video that the present invention is provided, and is by this
System ensure that the security of transmission of video not only by realizing the transmission of multimedia video, improve video data biography
Defeated and management efficiency, so that terminal device 3 is more efficient to receive CMMB video, additionally, gateway 2
Structure improve, effectively reduce the cost of terminal device 3.
For example in one students' dormitory there are 5 computers, without being equipped with mobile multimedia demodulation chip in each computer,
And 5 computers need not be within the covering of the signal of CMMB server 1, as long as 5 computer network connections
Gateway 2 be within the signal cover of MBMS service device 1, and only need to be in gateway 2
CMMB demodulation chips are set, therefore, old of terminal device 3 is effectively saved, as the terminal that gateway 2 is accessed sets
Standby 3 quantity are more, and its effect is obvious all the more.
Embodiment 5
As shown in fig. 7, the embodiment of the present invention 5 further defines the signal coverage areas on the basis of embodiment 4
Judge module 102 includes the heartbeat packet transmitting element 1021, the feedback information receiving unit 1022 that communicate；
The heartbeat packet transmitting element 1021 is used to be spaced in preset time period to be sent out to the MBMS service device 1
Send heartbeat detection bag；The feedback information receiving unit 1022 is used to receive the described of the transmission of MBMS service device 1
Gateway 2 is in the feedback information of the signal coverage areas.
Not only can be used to judge the state of gateway 2 by heartbeat detection bag, and can be used for whether recognizing it
Within signal cover in MBMS service device 1.
As shown in Figure 8, it is necessary to be explained further, the encrypting module 105 includes being communicated with the memory module 101
The reading unit 1051 of news, associative cell 1052, the reading unit 1051 are described in the memory module 101 for reading
Decryption file, and sending to the associative cell 1052, the associative cell 1052 be used for by n-th frame of video section last
Individual frame of video is associated with the spring decryption frame in the decryption file, forms encrypted video file.
Encrypting module 105 effectively realizes the spring decryption frame of association decryption file in frame of video section, effectively realizes and regards
The encryption of frequency, improves the security in transmission of video.
As shown in figure 9, it should be further stated that, the deciphering module 301 include communicate input block 3011,
Judging unit 3012, jump-transfer unit 3013, the input block 3011 are used to be hit by a bullet what is jumped out in the multimedia broadcasting video
The deciphering information being input into the display picture of the spring decryption frame；The judging unit 3012 is used to believe the deciphering
Breath is audited；If information is correct, the jump-transfer unit 3013 is used to for video playback position to jump to the N+1 frame of video
Duan Jixu is played, if information errors, the jump-transfer unit 3013 is used to for video playback position to jump to head, and stopping is broadcast
Put.
The present invention is not limited to above-mentioned preferred forms, and anyone can show that other are various under enlightenment of the invention
The product of form, however, make any change in its shape or structure, it is every with skill identical or similar to the present application
Art scheme, is within the scope of the present invention.
Claims (10)
1. a kind of safe transmission method of multimedia broadcasting video, it is characterised in that the safe transmission method includes following step
Suddenly：
S1, judge gateway (2) whether in MBMS service device (1) signal coverage areas, if be in the letter
In number overlay area, then terminal device (3) is sent to the MBMS service device (1) by the gateway (2) and broadcast
Put the request of multimedia broadcasting video；
S2, the MBMS service device (1) cut some frame of video in the multimedia broadcasting video according to the time period
It is divided into N number of frame of video section, wherein N >=1；
S3, by last frame of video of n-th frame of video section and decryption file association, form encrypted video file, and by institute
Decryption file and the encrypted video file is stated to send simultaneously to the gateway (2)；
S4, the gateway (2) according to the demodulation method of the MBMS service device (1) to the decryption file and
The encrypted video file is demodulated, and is transmitted to the terminal device (3) by Wireless/wired；
After S5, the terminal device (3) are decrypted to the decryption file and the encrypted video file, many matchmakers are played
Body INVENTIONBroadcast video.
2. the safe transmission method of multimedia broadcasting video as claimed in claim 1, it is characterised in that in step S1, judges
Whether gateway (2) is in the signal coverage areas of MBMS service device (1), and specific method includes：
S1-1, the gateway (2) are spaced in preset time period and send heartbeat inspection to the MBMS service device (1)
Survey bag；
If S1-2, the MBMS service device (1) receive the heartbeat detection bag, by the gateway (2) place
Sent to the gateway (2) in the feedback information of the signal coverage areas.
3. the safe transmission method of multimedia broadcasting video as claimed in claim 1, it is characterised in that in step S2, each
Respectively comprising the frame of video that several sort according to reproduction time order in the frame of video section.
4. the safe transmission method of multimedia broadcasting video as claimed in claim 1, it is characterised in that in step S3, by N
Last frame of video of individual frame of video section and decryption file association, form encrypted video file, and by the decryption file and
The encrypted video file is sent to the gateway (2) simultaneously, and specific method includes：
S3-1, MBMS service device (1) memory storage decrypt file, the decryption file include spring decryption frame and
Deciphering information corresponding with the spring decryption frame, the display picture of the spring decryption frame is provided with for being input into the solution
The deciphering input area of encrypted message；
S3-2, by n-th frame of video section last frame of video with spring decryption frame associate, formation encrypted video file；
S3-3, the encrypted video file and the decryption file are sent to the gateway (2) simultaneously.
5. the safe transmission method of multimedia broadcasting video as claimed in claim 4, it is characterised in that in step S3-3, institute
MBMS service device (1) is stated to send to institute the decryption file and the encrypted video file through IP unicast transmission means
Gateway (2) is stated, the IP unicast transmission means is internet unicast transmission mode.
6. the safe transmission method of multimedia broadcasting video as claimed in claim 4, it is characterised in that described in step S5
After terminal device (3) is decrypted to the decryption file and the encrypted video file, the multimedia broadcasting video is played,
Specific method is：
When S5-1, the broadcasting multimedia broadcasting video, the terminal device (3) is hit by a bullet in the multimedia broadcasting video and is jumped out
The spring decryption frame display picture on be input into deciphering information；
S5-2, the deciphering information is audited, if information is correct, continue to play the N+1 frame of video section, if information
Mistake, then video playback position jumps to head, and stops playing.
7. a kind of secure transmission system of multimedia broadcasting video, it is characterised in that including MBMS service device (1) and
The gateway (2) that is communicated with the MBMS service device (1) and it is some with the gateway (2) by it is wireless/
Wired terminal device (3) for communicating；The MBMS service device (1) including memory module (101) and with the storage
Signal coverage areas judge module (102), request receiving module (103), video slicing module that module (101) communicates
(104), encrypting module (105), transport module (106), wherein,
Be stored with decryption file in the memory module (101)；The signal coverage areas judge module (102) is for judging to take
Whether business gateway (2) is in the signal coverage areas of MBMS service device (1)；The request receiving module (103) is used for
Receive the terminal device (3) and the request for playing multimedia broadcasting video is sent by the gateway (2)；The video is cut
Sub-module (104) for some frame of video in the multimedia broadcasting video to be cut into N number of frame of video section according to the time period,
Wherein N >=1；The encrypting module (105) is for last frame of video of n-th frame of video section to be closed with the decryption file
Connection, forms encrypted video file；The transport module (106) by described for decrypting file and the encrypted video file simultaneously
Send to the gateway (2)；
The gateway (2) including communicate information receiving module (201), message processing module (202), information send mould
Block (203), described information receiver module (201) is for receiving the decryption file and institute that the transport module (106) sends
State encrypted video file；Demodulation side of the described information processing module (202) for basis and the MBMS service device (1)
Method is demodulated to the decryption file and the encrypted video file；After described information sending module (203) will be for that will demodulate
The decryption file and the encrypted video file transmitted to the terminal device (3) by Wireless/wired；
The terminal device (3) includes the deciphering module (301) and playing module (302) that communicate, the deciphering module (301)
For being decrypted to the decryption file and the encrypted video file；The playing module (302) is for after to decryption
The multimedia broadcasting video is played out.
8. the secure transmission system of multimedia broadcasting video as claimed in claim 7, it is characterised in that the signal coverage
Domain judge module (102) includes the heartbeat packet transmitting element (1021), the feedback information receiving unit (1022) that communicate；
The heartbeat packet transmitting element (1021) is sent out for being spaced in preset time period to the MBMS service device (1)
Send heartbeat detection bag；The feedback information receiving unit (1022) is for receiving what the MBMS service device (1) sent
The feedback information of the gateway (2) in the signal coverage areas.
9. the secure transmission system of multimedia broadcasting video as claimed in claim 7, it is characterised in that the encrypting module
(105) it is described to read list including the reading unit (1051), the associative cell (1052) that are communicated with the memory module (101)
First (1051) are sent to the associative cell (1052) for reading the decryption file in the memory module (101),
The associative cell (1052) for by n-th frame of video section last frame of video and it is described decryption file in spring solution
Close frame association, forms encrypted video file.
10. the secure transmission system of multimedia broadcasting video as claimed in claim 7, it is characterised in that the deciphering module
(301) input block (3011), judging unit (3012), jump-transfer unit (3013), the input block including communicating
(3011) for the multimedia broadcasting video be hit by a bullet jump out the spring decryption frame display picture on be input into decryption
Code information；The judging unit (3012) to the deciphering information for auditing；If information is correct, described to redirect list
First (3013) continue to play for video playback position to be jumped into the N+1 frame of video section, described to redirect if information errors
Unit (3013) stops playing for video playback position to be jumped into head.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107645500A (en) * | 2017-09-15 | 2018-01-30 | 成都德芯数字科技股份有限公司 | Broadcast data exchange method and device |
| CN111526389A (en) * | 2020-04-29 | 2020-08-11 | 深圳创维－Rgb电子有限公司 | Video playing method, television and storage medium for broadcast broadband hybrid application |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101155296A (en) * | 2006-09-29 | 2008-04-02 | 中国科学技术大学 | Method for transmitting data |
| CN101247506A (en) * | 2007-02-14 | 2008-08-20 | 中国科学院声学研究所 | File enciphering method and enciphered file structure in digital media broadcasting system |
| CN101771484A (en) * | 2008-12-30 | 2010-07-07 | 华为终端有限公司 | Multimedia broadcasting service information transmission method and gateway equipment |
| US20100293390A1 (en) * | 2005-06-28 | 2010-11-18 | Ogram Mark Ellery | Secure movie download |
| CN105187912A (en) * | 2015-07-14 | 2015-12-23 | 中国科学院信息工程研究所 | Ciphertext video player and playing method |
-
2016
- 2016-12-30 CN CN201611262080.3A patent/CN106851338B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100293390A1 (en) * | 2005-06-28 | 2010-11-18 | Ogram Mark Ellery | Secure movie download |
| CN101155296A (en) * | 2006-09-29 | 2008-04-02 | 中国科学技术大学 | Method for transmitting data |
| CN101247506A (en) * | 2007-02-14 | 2008-08-20 | 中国科学院声学研究所 | File enciphering method and enciphered file structure in digital media broadcasting system |
| CN101771484A (en) * | 2008-12-30 | 2010-07-07 | 华为终端有限公司 | Multimedia broadcasting service information transmission method and gateway equipment |
| CN105187912A (en) * | 2015-07-14 | 2015-12-23 | 中国科学院信息工程研究所 | Ciphertext video player and playing method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107645500A (en) * | 2017-09-15 | 2018-01-30 | 成都德芯数字科技股份有限公司 | Broadcast data exchange method and device |
| CN111526389A (en) * | 2020-04-29 | 2020-08-11 | 深圳创维－Rgb电子有限公司 | Video playing method, television and storage medium for broadcast broadband hybrid application |
| CN111526389B (en) * | 2020-04-29 | 2022-02-15 | 深圳创维－Rgb电子有限公司 | Video playing method, television and storage medium for broadcast broadband hybrid application |
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