CN105554518A - Method and device for controlling video stream transmission - Google Patents
Method and device for controlling video stream transmission Download PDFInfo
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- CN105554518A CN105554518A CN201510888555.9A CN201510888555A CN105554518A CN 105554518 A CN105554518 A CN 105554518A CN 201510888555 A CN201510888555 A CN 201510888555A CN 105554518 A CN105554518 A CN 105554518A
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- 238000000034 method Methods 0.000 title claims abstract description 48
- 230000005540 biological transmission Effects 0.000 title claims abstract description 15
- 238000012544 monitoring process Methods 0.000 claims abstract description 31
- 230000006835 compression Effects 0.000 claims description 71
- 238000007906 compression Methods 0.000 claims description 71
- 238000010586 diagram Methods 0.000 description 25
- 230000008569 process Effects 0.000 description 7
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007704 transition Effects 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
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234363—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by altering the spatial resolution, e.g. for clients with a lower screen resolution
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption
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- 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
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
- H04N21/25808—Management of client data
- H04N21/25825—Management of client data involving client display capabilities, e.g. screen resolution of a mobile phone
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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
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
- H04N21/2662—Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—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
- H04N21/4402—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 reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440263—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 reformatting operations of video signals for household redistribution, storage or real-time display by altering the spatial resolution, e.g. for displaying on a connected PDA
-
- 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
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Computer Security & Cryptography (AREA)
- Computer Graphics (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention provides a method and a device for controlling video stream transmission. The method is applied to a fortress machine in a video monitoring system. The video monitoring video further comprises a protected server and an external access client. The method comprises steps that the position information of a video playing window is sent to the external access client when a video playing request is received, and the external access client is made to establish a remote video playing window according to the position information of the video playing window; according to the video playing request, a compressed video flow is acquired from the server; the compressed video flow is sent to the external access client to make the external access client decode the video flow, and an acquired video image is played in the remote video playing window. Through the method for controlling video stream transmission, bandwidth resource occupation during video flow transmission is effectively reduced, and network performance is improved.
Description
Technical field
The present invention relates to network communication technology field, particularly a kind of method and apparatus controlling video streaming.
Background technology
Along with the development of the Internet, increasing business has been connected on the Internet, and the protection of network security becomes more and more important.Fort machine is widely applied as a kind of equipment guaranteed network security.
In video monitoring system; the similar external client of fort machine obtains a terminal of server data; its course of work is: after external reference client is by the authentication of fort machine; long-rangely be connected to fort machine; protected server accessed by fort machine, and all the elements of server are played up on fort machine.Fort machine is caught all monitored pictures of server and is exported, then sends to external client by exporting the data flow generated according to monitored picture by long-range connection.Such client just without the need to accessing the internal network between fort machine and server, reaches the object of protecting network safety.
When needing the content played up to comprise video, decoding video stream is first played up out by client or browser control part by fort prow, is then encoded by the video content after playing up, sends to client afterwards.Not only consume ample resources in the process, and the video code rate after recompile is usually much larger than original video flowing, causes client to need to take more bandwidth resources when fort machine obtains video stream data.
Summary of the invention
In view of this, the invention provides a kind of method and apparatus controlling video streaming, taking bandwidth resources during minimizing video streaming, promotes network performance.
The invention provides a kind of method controlling video streaming, be applied to the fort machine of video monitoring system, described video monitoring system also comprises protected server and external reference client, and described method comprises:
When receiving video playback request, the positional information of video playback window being sent to described external reference client, creating long-distance video broadcast window to make described external reference client according to the positional information of described video playback window;
According to described video playback request, obtain the video flowing of compression from described server;
Send the video flowing of described compression to described external reference client, to make described external reference client decode described video flowing, and the video image of acquisition is play in described long-distance video broadcast window.
Alternatively, described after described server acquisition video flowing, also comprise:
The video flowing of described compression is encrypted, obtains the described video flowing through encryption.
On the other hand, additionally provide a kind of method controlling video streaming, be applied to the external reference client of video monitoring system, described video monitoring system also comprises protected server, fort machine, and described method comprises:
Receive the positional information of the video playback window that described fort machine sends;
Positional information according to described video playback window creates long-distance video broadcast window;
Receive video flowing that described fort machine sends, compression, and decode, obtain video image;
Described video image is presented in described long-distance video broadcast window, realizes video playback.
Alternatively, video flowing that the described fort machine of described reception sends, compression, and decode, obtain video image, comprising:
Receive video flowing that described fort machine sends, compression;
Whether the video flowing judging described compression is encrypted video stream;
If the video flowing of described compression is unencryption video flowing, then described unencryption video flowing is decoded, obtain video image;
If the video flowing of described compression is encrypted video stream, then described encrypted video stream is decrypted and decodes, obtaining video image.
Alternatively, the method for described control video streaming also comprises:
When the Transmission of video flowing, record break period;
If described break period exceedes preset time threshold, close described long-distance video broadcast window.
Corresponding, provide a kind of device controlling video streaming, be arranged in the fort machine of video monitoring system, described video monitoring system also comprises protected server and external reference client, and described device comprises:
Positional information sending module, for when receiving video playback request, the positional information of video playback window is sent to described external reference client, creates long-distance video broadcast window to make described external reference client according to the positional information of described video playback window;
Video flowing acquisition module, for according to described video playback request, obtains the video flowing of compression from described server;
Video stream module, for sending the video flowing of described compression to described external reference client, to make described external reference client decode the video flowing of described compression, and plays the video image of acquisition in described long-distance video broadcast window.
Optionally, the device of described control video streaming also comprises:
Encrypting module, for being encrypted described video flowing, obtains the described video flowing through encryption.
Additionally provide a kind of device controlling video streaming, be arranged at the external reference client of video monitoring system, described video monitoring system also comprises: protected server, fort machine, and described device comprises:
Positional information receiver module, for receiving the positional information of the video playback window that described fort machine sends;
Window creating module, creates long-distance video broadcast window for the positional information according to described video playback window;
Video image acquisition module, for receiving video flowing that described fort machine sends, compression, and decoding, obtaining video image;
Video playback module, is presented on described video image in described long-distance video broadcast window, realizes video playback.
Optionally, described video image acquisition module comprises:
Video flowing receiving element, for receiving video flowing that described fort machine sends, compression;
Judging unit, for judging whether the video flowing of described compression is encrypted video stream;
First video image acquiring unit, for when the video flowing of described compression is unencryption video flowing, decodes to described unencryption video flowing, obtains video image;
Second video image acquiring unit, for when the video flowing of described compression is encrypted video stream, is decrypted described encrypted video stream and decodes, and obtains video image.
Optionally, the device of described control monitor video flow transmission also comprises:
Timing module, for when the Transmission of video flowing, record break period;
Close module, for when exceeding preset time threshold described break period, closes described long-distance video broadcast window.
The method of the control monitor video flow transmission that the embodiment of the present invention provides, compared with prior art, has saved the decoding of video flowing and the process of recompile at fort pusher side, therefore, has saved system resource, also improved the efficiency of transmission of video simultaneously.In addition, relative to prior art, in video flowing of the present invention, do not carry other additional informations, therefore, in the present invention, fort machine by above-mentioned video stream to external reference client time, taking of bandwidth resources can not be increased, so promote network performance.
Accompanying drawing explanation
Fig. 1 is the network topology structure schematic diagram of video monitoring system of the present invention;
Fig. 2 is a kind of flow chart controlling the method for video streaming that the present invention is applied in fort machine;
Fig. 2-A is the schematic diagram of a two field picture of prior art peripheral access client decoding;
Fig. 2-B is the schematic diagram of a two field picture of peripheral access client of the present invention decoding;
Fig. 3 is the flow chart that the present invention's another kind be applied in fort machine controls the method for video streaming;
Fig. 4 is a kind of flow chart controlling the method for video streaming that the present invention is applied to external reference client;
Fig. 5-A is the schematic diagram of the video playback control of fort machine in the present invention fort machine display interface when being triggered;
Fig. 5-B is that peripheral access client of the present invention is at the schematic diagram receiving the display interface before the positional information of video playback window;
Fig. 5-C is the schematic diagram of the long-distance video broadcast window in peripheral access client of the present invention;
Fig. 6 is the flow chart of step 23 embodiment in the inventive method embodiment;
Fig. 7-1 is the schematic diagram of remote monitoring video playback of the present invention;
Fig. 7-2 is schematic diagrames of prior art remote monitoring video playback;
Fig. 8 is the flow chart that the present invention is applied to the method for the another kind control video streaming of external reference client;
Fig. 9 is a kind of device block diagram controlling video streaming of the present invention;
Figure 10 is the device block diagram that the present invention's another kind controls video streaming;
Figure 11 is a kind of device block diagram controlling video streaming of the present invention;
Figure 12 is the structured flowchart of video image acquisition module in apparatus of the present invention embodiment;
Figure 13 is the device block diagram that the present invention's another kind controls video streaming.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, and below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Only for describing the object of specific embodiment at term used in this application, and not intended to be limiting the application." one ", " described " and " being somebody's turn to do " of the singulative used in the application and appended claims is also intended to comprise most form, unless context clearly represents other implications.It is also understood that term "and/or" used herein refer to and comprise one or more project of listing be associated any or all may combine.
Although should be appreciated that and term first, second, third, etc. may be adopted in this application to describe various information, these information should not be limited to these terms.These terms are only used for the information of same type to be distinguished from each other out.Such as, when not departing from the application's scope, the first information also can be called as the second information, and similarly, the second information also can be called as the first information.Depend on linguistic context, word as used in this " if " can be construed as into " ... time " or " when ... time " or " in response to determining ".
Fig. 1 shows the network topology structure schematic diagram of video monitoring system of the present invention, comprising: protected server 100, fort machine 200, external reference client 300.Fort machine 200 is equivalent to external reference client 300 obtains a video data intermediate transition station from server 100, exported by all monitor video pictures of catching from server 100, recompile is that monitor data sends to external reference client 300 by long-range connection.Wherein, external reference client 300 can be personal computer, panel computer, personal digital assistant, smart mobile phone etc.
The present invention relates generally to the transmitting procedure of video data in video monitoring system.Fig. 2 shows a kind of flow chart controlling the method for video streaming of the present invention, and executive agent is the video playback control of fort machine, can comprise:
Step 11, when receiving video playback request, the positional information of video playback window being sent to described external reference client, creating long-distance video broadcast window to make described external reference client according to the positional information of described video playback window;
In the embodiment of the present invention, be currently in long-range connection status when the video playback control of fort machine detects, and when receiving external video playing request, the positional information of video playback window sent to external reference client.Wherein, the video playback control of fort machine can be client software, such as MPC; Also can be browser play control.The positional information of above-mentioned video playback window, is used as to describe the position of video playback window in fort machine current display interface, relative to the information such as scale of current display interface area.Such as, video playback window is positioned at the middle position, upper left position, lower right position etc. of fort machine current display interface.The size of video playback window equals fort machine current display interface size, i.e. played in full screen pattern, or video playback window accounts for 1/3 of the whole display interface of fort machine etc., corresponding non-full frame play mode.
Step 13, according to described video playback request, obtain the video flowing of compression from described server;
The video playback control response video playback request of fort machine, accesses protected server, obtains the video flowing of compression from this server.
Step 15, send the video flowing of described compression to described external reference client, to make described external reference client decode the video flowing of described compression, and the video image of acquisition is play in described long-distance video broadcast window.
It should be noted that herein, in the embodiment of the present invention, after receiving video playback request, video playback window positional information also can be sent to external reference client by fort machine together with the video flowing of the compression obtained from server, and the sequencing of the present invention to the video flowing sending video playback window positional information and compression does not limit.
In the present invention, the video playback control of fort machine, from after server obtains the video flowing of compression, is no longer decoded to the video flowing of compression and plays, but directly the video flowing of compression being transmitted to external reference client.
In prior art, for the first two field picture of video flowing, after the video playback control of fort machine obtains video flowing from server, first be sequence chart picture frame by the decoding video stream of compression, first two field picture is presented in the window of video player, afterwards broadcast window and the video image that presents are carried out the process such as recompile, compression, together by Packet Generation to external reference client.After external reference client receives packet, carry out decompressing, the process such as decoding, the video playback window of fort machine and video playback picture are presented in the user interface of external reference client.That is, in prior art, video image in current, carries out encoding as piece image together with the frame of the image information such as broadcast window of video playback window by a frame video image in video playback window, compress after send to external client.Client receives and obtains the image of the related video playback window of image after decoding, as shown in Fig. 2-A.Due to relative to video image itself, add the image information of player, therefore need to take more multi-band when transfer of data wide.
In the present invention, the video playback control of fort machine is accessed protected server, is therefrom obtained video stream data after receiving external played request.The position of video playback window in whole display interface can be sent to external client by fort machine simultaneously, makes external client create long-distance video broadcast window.The video flowing of video playback control to the compression got from server of fort machine is left intact, directly be transmitted to external reference client, make external reference client to the decoding video stream of compression, the video image obtained, as shown in fig. 2-b, show in the video and graph compound long-distance video broadcast window of acquisition according to the positional information of the video playback window received afterwards.
Visible, compared with prior art, the embodiment of the present invention has been saved at fort pusher side and has been decoded and the process of recompile to the video flowing of compression, therefore, has saved system resource, has also improved the efficiency of transmission of video simultaneously.In addition, known with the contrast of 2-B through Fig. 2-A, relative to prior art, other additional informations are not carried in the video flowing of compression of the present invention, the image information of such as video playback window, therefore, in the present invention, fort machine by the video stream of above-mentioned compression to external reference client time, taking of bandwidth resources can not be increased.
Fig. 3 shows the method flow diagram that the present invention's another kind controls video streaming, on basis embodiment illustrated in fig. 2, after step 13, can also comprise:
Step 14, the video flowing of described compression to be encrypted, to obtain the described video flowing through encryption.
In the embodiment of the present invention, for guaranteeing the information security of video flowing in Internet Transmission compressed, fort machine, before externally access client forwards the video flowing of compression, can adopt the video flowing of preset cryptographic algorithm to original compression to be encrypted, and obtains the video flowing after encryption.Afterwards, fort machine by the video stream after above-mentioned encryption to external reference client.
Accordingly, in outside access client side, also the processing procedure of video flowing is improved, be described in detail below in conjunction with Fig. 4, Fig. 5.
Fig. 4 shows a kind of method controlling video streaming of the present invention, and be applied to the external reference client of the video monitoring system shown in Fig. 1, described method comprises:
Step 21, receive the positional information of video playback window that described fort machine sends;
As above, the positional information of above-mentioned video playback window can comprise: the information such as ratio of the position of video playback window in fort machine display interface, video playback window and fort machine display interface.
Step 22, create long-distance video broadcast window according to the positional information of described video playback window;
Such as, in fort, the positional information of video playback window is: video playback window is positioned at the middle position of fort machine display interface, accounts for 1/2 of the whole display screen of whole fort machine.Then corresponding to outside access client side, arrange long-distance video broadcast window at the middle position of display screen, window size accounts for 1/2 of client display screen.
With reference to Fig. 5-A, Fig. 5-B, Fig. 5-C, wherein, the schematic diagram of fort machine display interface when the video playback control that Fig. 5-A shows fort machine is triggered, wherein, video playback window 202 is presented on fort machine display screen 201, be positioned at the middle position of whole display interface, account for 1/2 of whole display interface size.Fig. 5-B showed external reference client 300 before receiving the positional information of video playback window, the schematic diagram of display interface 301.Fig. 5-C is the schematic diagram of external reference client 300 medium-long range video playback window 302, the display interface namely after the complete step 22 of external reference client executing.
Step 23, receive described fort machine send, compression video flowing and decode, obtain video image;
In the embodiment of the present invention, video flowing that external reference client receives, compression can be divided into two kinds: the first, the video flowing of unencrypted compression, the video flowing of above-mentioned compression is that fort machine video playback control is after obtaining from server, do not do any intermediate treatment, the video flowing of the compression directly forwarded.The second, the compressing video frequency flow of encryption, this video flowing be through fort machine play control be encrypted after video flowing.When the video flowing of the compression received is encrypted video stream, need be decrypted video flowing and decode, wherein, decrypting process belongs to prior art, repeats no more herein.
Embodiment can the flow chart of step 23 embodiment of the present invention shown in reference diagram 6, can comprise:
Step 231, receive described fort machine send, compression video flowing;
Whether step 232, the video flowing judging described compression are encrypted video stream, if so, perform step 233, if not, perform step 234;
Step 233, described encrypted video stream to be decrypted;
Step 234, video flowing to be decoded, obtain video image.
Step 24, described video image to be presented in described long-distance video broadcast window, to realize video playback.
Exemplarily, Fig. 7-1 shows the schematic diagram of remote monitoring video playback of the present invention, and Fig. 7-2 shows the schematic diagram of prior art remote monitoring video playback.In Fig. 7-1, known, when video image is play in the long-distance video broadcast window of outside access client, the video playback window of corresponding fort pusher side may be blank screen, but the broadcasting process of player is still continuing, just not display video image.Video image only shows at the long-distance video broadcast window of outside access client.And carry out in the schematic diagram of video playback in the prior art video monitoring system shown in Fig. 7-2, with equal display video image in the long-distance video broadcast window of external reference client 300 in the video playback window of fort machine 200.
Fig. 8 shows the method that the present invention's another kind controls video streaming, and executive agent is external reference client, and on basis embodiment illustrated in fig. 4, described method also comprises:
Step 25, when the Transmission of video flowing, record break period;
The same, above-mentioned video flowing can be the video flowing of original compression, also can be through the compressing video frequency flow of encryption.
If step 26 exceedes preset time threshold described break period, close described long-distance video broadcast window.
Under normal circumstances, closing long-distance video broadcast window is perform when the outside received sends turn-off request.In the embodiment of the present invention, when video flowing interrupts, external reference client can start a timer and start timing, when video flowing exceedes preset time threshold break period, automatic closedown long-distance video broadcast window, avoid external reference client to be in the state of intercepting always, increase processor burden.
For aforesaid each embodiment of the method, in order to simple description, therefore it is all expressed as a series of combination of actions, but those skilled in the art know with this, the present invention is not by the restriction of described sequence of movement, because according to the present invention, some step can adopt other orders or carry out simultaneously.
Secondly, those skilled in the art also should know, the embodiment described in specification all belongs to embodiment, and involved action and module might not be that the present invention is necessary.
The embodiment of the method for the control video streaming that corresponding the invention described above provides, present invention also offers a kind of device controlling video streaming, is arranged in the fort machine of video monitoring system.The network configuration of this video monitoring system as shown in Figure 1 above, also comprises: protected server and external reference client.
With reference to a kind of device block diagram controlling video streaming of the present invention shown in Fig. 9, described device can comprise:
Positional information sending module 31, for when receiving video playback request, the positional information of video playback window is sent to described external reference client, creates long-distance video broadcast window to make described external reference client according to the positional information of described video playback window;
Video flowing acquisition module 33, for according to described video playback request, obtains the video flowing of compression from described server;
Video stream module 35, for sending the video flowing of described compression to described external reference client, to make described external reference client decode the video flowing of described compression, and plays the video image of acquisition in described long-distance video broadcast window.
Figure 10 shows the device block diagram that the present invention's another kind controls video streaming, and on basis embodiment illustrated in fig. 9, between video flowing acquisition module 33 and video stream module 35, described device can also comprise:
Encrypting module 34, for being encrypted the video flowing of described compression, obtains the described video flowing through encryption.
Accordingly, present invention also offers the another kind of device controlling video streaming, be arranged in the external reference client of video monitoring system shown in Fig. 1.
With reference to a kind of device block diagram controlling video streaming of the present invention shown in Figure 11, described device can comprise:
Positional information receiver module 41, for receiving the positional information of the video playback window that described fort machine sends;
Window creating module 42, creates long-distance video broadcast window for the positional information according to described video playback window;
Video image acquisition module 43, for receiving video flowing that described fort machine sends, compression, and decoding, obtaining video image;
Video playback module 44, is presented on described video image in described long-distance video broadcast window, realizes video playback.
Figure 12 shows the structured flowchart of video image acquisition module in apparatus of the present invention embodiment, and on the basis of Figure 11 shown device embodiment, video image acquisition module 43 can comprise:
Video flowing receiving element 431, for receiving video flowing that described fort machine sends, compression;
Judging unit 432, for judging whether the video flowing of described compression is encrypted video stream;
First video image acquiring unit 433, for when the video flowing of described compression is unencryption video flowing, decodes to described unencryption video flowing, obtains video image;
Second video image acquiring unit 434, for when the video flowing of described compression is encrypted video stream, is decrypted described encrypted video stream and decodes, and obtains video image.
Figure 13 shows the device block diagram that the present invention's another kind controls video streaming, and on basis embodiment illustrated in fig. 11, described device can also comprise:
Timing module 45, for when the Transmission of video flowing, record break period;
Close module 46, for when exceeding preset time threshold described break period, closes described long-distance video broadcast window.
For device embodiment, because it corresponds essentially to embodiment of the method, so relevant part illustrates see the part of embodiment of the method.Device embodiment described above is only schematic, the wherein said unit illustrated as separating component or can may not be and physically separates, parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of module wherein can be selected according to the actual needs to realize the object of the present invention program.Those of ordinary skill in the art, when not paying creative work, are namely appreciated that and implement.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar part mutually see.For device embodiment, due to itself and embodiment of the method basic simlarity, so description is fairly simple, relevant part illustrates see the part of embodiment of the method.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (10)
1. control a method for video streaming, be applied to the fort machine of video monitoring system, described video monitoring system also comprises protected server and external reference client, it is characterized in that, described method comprises:
When receiving video playback request, the positional information of video playback window being sent to described external reference client, creating long-distance video broadcast window to make described external reference client according to the positional information of described video playback window;
According to described video playback request, obtain the video flowing of compression from described server;
Send the video flowing of described compression to described external reference client, to make described external reference client decode described video flowing, and the video image of acquisition is play in described long-distance video broadcast window.
2. method according to claim 1, is characterized in that, described after described server acquisition video flowing, also comprises:
The video flowing of described compression is encrypted, obtains the described video flowing through encryption.
3. control a method for video streaming, be applied to the external reference client of video monitoring system, described video monitoring system also comprises protected server, fort machine, it is characterized in that, described method comprises:
Receive the positional information of the video playback window that described fort machine sends;
Positional information according to described video playback window creates long-distance video broadcast window;
Receive the compression that described fort machine sends, video flowing, and to decode, obtain video image;
Described video image is presented in described long-distance video broadcast window, realizes video playback.
4. method according to claim 3, is characterized in that, the video flowing of the compression that the described fort machine of described reception sends also is decoded, and obtains video image, comprising:
Receive video flowing that described fort machine sends, compression;
Whether the video flowing judging described compression is encrypted video stream;
If the video flowing of described compression is unencryption video flowing, then described unencryption video flowing is decoded, obtain video image;
If the video flowing of described compression is encrypted video stream, then described encrypted video stream is decrypted and decodes, obtaining video image.
5. method according to claim 3, is characterized in that, described method also comprises:
When the Transmission of video flowing, record break period;
If described break period exceedes preset time threshold, close described long-distance video broadcast window.
6. control a device for video streaming, be arranged in the fort machine of video monitoring system, described video monitoring system also comprises protected server and external reference client, it is characterized in that, described device comprises:
Positional information sending module, for when receiving video playback request, the positional information of video playback window is sent to described external reference client, creates long-distance video broadcast window to make described external reference client according to the positional information of described video playback window;
Video flowing acquisition module, for according to described video playback request, obtains the video flowing of compression from described server;
Video stream module, for sending the video flowing of described compression to described external reference client, to make described external reference client decode the video flowing of described compression, and plays the video image of acquisition in described long-distance video broadcast window.
7. device according to claim 6, is characterized in that, described device also comprises:
Encrypting module, for being encrypted described video flowing, obtains the described video flowing through encryption.
8. control a device for video streaming, be arranged at the external reference client of video monitoring system, described video monitoring system also comprises: protected server, fort machine, is characterized in that, described device comprises:
Positional information receiver module, for receiving the positional information of the video playback window that described fort machine sends;
Window creating module, creates long-distance video broadcast window for the positional information according to described video playback window;
Video image acquisition module, for receiving video flowing that described fort machine sends, compression, and decoding, obtaining video image;
Video playback module, is presented on described video image in described long-distance video broadcast window, realizes video playback.
9. device according to claim 8, is characterized in that, described video image acquisition module comprises:
Video flowing receiving element, for receiving video flowing that described fort machine sends, compression;
Judging unit, for judging whether the video flowing of described compression is encrypted video stream;
First video image acquiring unit, for when the video flowing of described compression is unencryption video flowing, decodes to described unencryption video flowing, obtains video image;
Second video image acquiring unit, for when the video flowing of described compression is encrypted video stream, is decrypted described encrypted video stream and decodes, and obtains video image.
10. device according to claim 8, is characterized in that, described device also comprises:
Timing module, for when the Transmission of video flowing, record break period;
Close module, for when exceeding preset time threshold described break period, closes described long-distance video broadcast window.
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| CN201510888555.9A CN105554518A (en) | 2015-12-04 | 2015-12-04 | Method and device for controlling video stream transmission |
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