CN100421469C - System and method for realizing video frequency information sharing - Google Patents
System and method for realizing video frequency information sharing Download PDFInfo
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Abstract
The present invention discloses a system and a method for realizing real-time video information sharing. A video resource index server is arranged in the system and is connected with each stream medium server for generating real-time video information to receive and store real-time video resource information transmitted by each stream medium server. Each client terminal obtains the real-time video resource information by accessing the real-time video resource index server, and is used for downloading and playing the real-time video information to the corresponding stream medium server according to the real-time video resource information; or each client terminal requests a real-time video towards the real-time video resource index server which obtains the real-time video to the stream medium server according to the real-time video resource information and transmitting the real-time video to each client terminal. The system and the method for realizing real-time video information sharing of the present invention realize the concentrated sharing of all kinds of real-time video information and can be applied to various environments for satisfying the requirements of users to all kinds of real-time video information.
Description
Technical field
The present invention relates to the technology of real-time Transmission video information on network, particularly realize the system and method for real-time video information sharing.
Background technology
At present, what bringing people as the network of the fourth media is various information, no longer be mere text, image and simple audio files, but comprise the multimedia technology of sound, video, comprise radio and television, newsworthy clips radio station, film, monitor video etc.Want to use these multimedia messagess, just must realize video, the transmission of audio-frequency information on network, but along with number of netizens become to increasing, and the limitation of network hardware equipment own makes the size of media file become very important parameter of Network Transmission.On the one hand, people wish to see media demo vividly clear, active excellence on network, and people were obliged to go again in the face of the required plenty of time of media file transmission on the other hand.
In order to solve this contradiction, a kind of new medium technique arises at the historic moment, Streaming Media (StreamMedia) technology that Here it is, and Streaming Media is streaming video again.So-called Streaming Media is meant the media formats that the mode of employing stream transmission is play in IP network, as audio frequency, video or multimedia file.Streaming Media is not downloaded whole file before broadcast, only will begin partial content deposits internal memory in, in computer or mobile phone packet is carried out buffer memory and makes the correct output of media data.The data flow of Streaming Media transmits at any time at any time and plays, and some delays are just arranged when beginning.
The key technology that Streaming Media is realized is transmitted as a stream exactly, and stream transmission mainly refers to multimedia files such as whole Voice ﹠ Video are resolved to compressed package one by one through specific compress mode, is transmitted to the subscriber computer order by streaming media server.
In the system that adopts the stream transmission mode, the user needn't wait until as adopting downloading mode that whole download of whole file finishes, but only need can play behind the multimedia file decompress(ion)s such as Voice ﹠ Video that utilize hardware or software decoding equipment to compression on the user's computer and watch through the startup time-delay of seconds or tens of seconds.The remainder of multimedia file will continue on the backstage to download this moment.
Compare with simple downloading mode, this stream transmission mode that multimedia file is play while downloading not only makes and starts time-delay shortening significantly, and the demand of system cache capacity is also reduced greatly, greatly reduces user's stand-by period.
Adopt stream media technology can realize the real-time Transmission of video information, be mainly used in video monitoring system at present, referring to Fig. 1, Fig. 1 is a prior art video monitoring system structural representation.Wherein, streaming media server 102 has connected a plurality of camera heads 101, obtains video information by camera head, generates the real-time video stream medium data.Streaming media server 102 can be realized by computer, it can pass through ADSL (Asymmetric Digital Subscriber Line) (Asymmetrical Digital Subscriber Line, ADSL) modes such as 103 enter the Internet 110, remote monitoring terminal 105 is according to the address of streaming media server 102,110 access stream media servers 102 obtain video information in real time through the internet, realize video monitoring.
Though video monitoring is extensive use, present various real-time video resources substantially all are nonopen, sealing, this also is because present video monitoring system mainly is to be applied to safe and privately owned place certainly, does not allow it openly to determine.But trend along with network entertainment orientation life-stylize, real-time video will not only be mainly used in safety monitoring, but also can satisfy people's entertainment life demand, as supermarket, shop, sight spot, park, or even the individual can share out with the camera of settling, and anyone can watch various places to share the real-time video that camera transmits by network, so abundant various real-time video resource-sharings are concentrated in together, just can realize that the user is home-confined and can see the real-time video in any place that shared camera arranged.Do not share various available real-time video resources but also provide a kind of unified and open system and method to concentrate now, realize above new demand.
Summary of the invention
A main purpose of the present invention is the method that realizes the real-time video information sharing is provided, and makes more user can receive real-time video information.
For achieving the above object, the invention provides the method that realizes the real-time video information sharing, streaming media server has stored the streaming media server address information in the real-time video resource information into the video resource index server in advance, and the real-time video resource state information real-time update in the real-time video resource information is arrived the video resource index server; The process that client terminal obtains real-time video information may further comprise the steps:
A, client terminal send the video resource request to the video resource index server;
B, video resource index server receive the video resource request, obtain to comprise the real-time video resource information of streaming media server address information and real-time video resource state information, and this real-time video resource information is returned to client terminal;
C, client terminal send the real-time video request according to address information in this real-time video resource information and state information to streaming media server;
D, streaming media server will generate the real-time video stream medium data and play to client terminal according to the real-time video request from the video information that camera head receives.
Wherein, in the described steps A, client terminal can send the video resource request to the video resource index server by internet or local area network (LAN);
Among the described step B, the video resource index server returns to client terminal by the real-time video resource information that described internet or local area network (LAN) will comprise the streaming media server address;
Among the described step C, the real-time video request that client terminal sends to streaming media server by internet or local area network (LAN);
Among the described step D, streaming media server plays to client terminal by described internet or local area network (LAN) with the real-time video stream medium data.
Described video resource index server can move the WWW service with web displaying real-time video resource information; Described client terminal uses the WEB browser by access to the Internet video resource index server;
The video resource index server is communicated by letter with streaming media server by ICP/IP protocol or Session Initiation Protocol.
Described real-time video resource information can further comprise: real-time video resource location information, real-time video resource class information, real-time video resource are controlled one or more in the information.
When described real-time video resource information comprised real-time video resource location information: the video resource index server carried out index by real-time video resource location information, and by described positional information, position on real-time video resource and the map is mapped, and will be included in the real-time video resource information at the map that correspondence position has marked the real-time video resource and sends to client terminal;
When described real-time video resource information comprised real-time video resource class information: the video resource index server carried out index by real-time video resource class information, generate real-time video resource index catalogue, this catalogue is included in the real-time video resource information sends to client terminal;
Described real-time video resource information comprises when the real-time video resource is controlled information: among the described step B, the video resource index server is to controlling the real-time video resource of state, send the video operation and control interface to client terminal, receive the instruction of controlling of user's input, and will control the instruction send streaming media server to, streaming media server is controlled instruction according to this camera head of real-time video resource correspondence is controlled accordingly.
Described streaming media server with real-time video state of resources information stores to the method for video resource index server can for:
The state information request that described streaming media server receiver, video resource index server sends by pre-set time interval is asked to video resource index server return state information according to this; The video resource index server upgrades with the state information that receives;
Or when real-time video state of resources information changed, described streaming media server upgraded up-to-date real-time video resource state information to the video resource index server.
Described real-time video resource state information can comprise whether resource is available, the real-time summary picture of this real-time video resource current accessed number or information on load and this real-time video resource;
Among the described step B, when the video resource index server receives the request of real-time video resource, detect the number of visiting people or the load of this real-time video resource earlier; Reach predefined and go up in limited time when detecting the number of visiting people or load, by certain hour at interval to the streaming media server request picture of making a summary in real time; And after receiving the real-time summary picture that streaming media server returns, it is added real-time video resource state information send to user terminal;
Drop to and be lower than predefined going up in limited time when detecting the number of visiting people or load, video resource index server notice client terminal obtains the real-time video stream medium data to streaming media server.
Among the described step B, the video resource index server by certain hour at interval before picture is made a summary in the streaming media server request in real time, the video resource index server can send to user terminal with up-to-date one or more picture, the time corresponding that Shows Picture of this real-time video resource of current storage.
Described real-time video resource state information can also comprise resource whether available and this real-time video resource current accessed number or information on load;
Reach predefined and go up in limited time when described streaming media server detects the number of visiting people or load, or behind the play stream media data certain hour, change into by certain hour and send real time picture to client terminal at interval.
Described client terminal can comprise the immediate status client unit;
Described immediate status client unit writes down the immediate state service identification information of each real-time video resource status, and subscribes to the real-time video state of resources information of this identification information correspondence to the video resource index server; Send the real-time video request according to real-time video state of resources information to streaming media server;
Described video resource index server further receives the subscribe request of the immediate status client unit of client terminal, and according to this request, the real-time video state of resources information that client terminal is subscribed to returns to the immediate status client unit in the client terminal;
Among the described step D, the immediate status client unit of streaming media server in client terminal play the real-time video stream medium data.
This system can also further comprise the immediate status server; Described video resource index server and client terminal comprise the immediate status client unit respectively;
Immediate status client unit in the described video resource index server is each real-time video resource information of registration storage on instant state server in advance, and accept the immediate state service identification information of immediate status server-assignment, and the video resource index server constantly with each real-time video state of resources information updating to the immediate status server;
Immediate status client unit in the described client terminal writes down the immediate state service identification information of each real-time video resource status in advance, subscribes to the real-time video state of resources information of this identification information correspondence to the immediate status server;
After the subscribe request of described immediate status server immediate status client unit in receiving client terminal, according to this request, the real-time video state of resources information that client terminal is subscribed to returns to the immediate status client unit in the client terminal;
Among the described step D, the immediate status client unit of streaming media server in client terminal play the real-time video stream medium data.
This method can further include: when a real-time video resource was being controlled, the video resource index server was a lock-out state with the information setting of controlling of this real-time video resource, refused the instruction of controlling of other client terminals transmissions.
The camera that described camera head can comprise track and can orbit is describedly controlled instruction and is also comprised the instruction of controlling that orbits;
Described streaming media server is controlled instruction according to this and camera of the camera head of real-time video resource correspondence is carried out on the track operation is controlled.
Described video resource index server can further be stored one or more video ads data;
Among the described step B, real-time video resource index server is when returning the real-time video resource information to client terminal, and the notice client terminal arrives first real-time video resource index server and downloads video ads data;
Among the described step C, client terminal to real-time video resource index server download video advertisements data, in the playing video advertisement data while or after playing, sends the real-time video request according to the real-time video resource information to streaming media server according to notice.
The type information that can also comprise the real-time video resource in the described real-time video resource information, each video ads data of described storage are relevant with at least one described type;
Among the described step B, real-time video resource index server is chosen one from the relevant video ads data of the type of the real-time video resource of client terminal request, and the notice client terminal is downloaded this video ads data.
The advertisement video server of one or more store video ad datas can further be set in system; Each advertisement video server links to each other with described video resource index server, and the video resource index server is stored the address information of each advertisement video server;
Among the described step B, after the video resource index server receives the video resource request of client terminal transmission, should ask and the real-time video resource information is transmitted to an advertisement video server, and the address information of advertisement video server was sent to client terminal;
Described step B also comprises: client terminal arrives described advertisement video server download video advertisements data according to the address information of advertisement video server, and receives the advertisement video server is downloaded the back transmission in the video ads data real-time video resource information;
Among the described step C, client terminal sends the real-time video request according to the real-time video resource information that receives from the advertisement video server to streaming media server.
Can further in system, comprise: the mobile communication terminal of band camera;
The mobile communication terminal of described band camera and streaming media server are set up the transmission of flow media data passage via the WAP gateway in the mobile communications network, and the real time video data that camera is taken is passed through this data transmission channel, upload to streaming media server.
The address information that can comprise client terminal in the real-time video request that described client terminal sends;
Described step D is: streaming media server is according to the address information in the real-time video request, to be encoded to stream media format from the video information compression that camera head receives, if camera head comprises pick-up, then streaming media server also carries out compressed encoding together with audio frequency, generates the real-time video stream medium data and plays to client terminal.
Described step D can comprise:
D1, streaming media server obtain video information from camera head;
D2, streaming media server and client terminal are set up signalling path, and broadcast address and port numbers are sent to client terminal;
D3, client terminal and streaming media server are set up data channel;
D4, streaming media server send to client terminal with it by this data channel after video information is generated the video stream media data;
D5, client terminal receiving stream media data display the play.
Among the described step D2, streaming media server can send to client terminal with multicast address and port numbers;
Among the described step D4, streaming media server sends to router in internet or the local area network (LAN) with the real-time video stream medium data; Router will send to a plurality of clients continuously from the real-time video stream medium data that the separate unit streaming media server receives in the multicast mode simultaneously.
In the described steps A, client terminal can be carried out the step of authentication earlier before real-time video resource index server sends the video resource request, after authentication is passed through, the record number of the account, real-time video resource index server begins to charge to this number of the account, generates the CDR ticket writing.
Can generate the CDR ticket according to different charging policy; If adopt mode by the time charge on traffic, then finishing when the client sends the real-time video stream medium data eventually by streaming media server, report the time and the flow information of this client terminal playing real-time video to the video resource index server, the video resource index server generates the CDR ticket writing in view of the above.
As seen from the above technical solutions, first kind of system and method for realizing the real-time video information sharing of the present invention, a video resource index server is set in system, it links to each other with the streaming media server that each generates real-time video information, receive the also real-time video resource information of stored stream media server transmission, each client terminal is by visit real-time video resource index server, obtain the real-time video resource information, and download and play real-time video information to corresponding streaming media server according to this real-time video resource information, realized that concentrating of various real-time video information share.
Description of drawings
Fig. 1 is a prior art video monitoring system structural representation;
Fig. 2 is the real-time video shared system structural representation of the present invention's first preferred embodiment;
Fig. 3 be embodiment illustrated in fig. 2 in, do not comprise the handling process that the realization real-time video under the advertisement video server situation is shared;
Fig. 4 be embodiment illustrated in fig. 2 in, comprise the handling process that the realization real-time video under the advertisement video server situation is shared;
Fig. 5 be embodiment illustrated in fig. 2 in, client terminal is downloaded the concrete handling process of real time video data to streaming media server;
Fig. 6 is the real-time video shared system structural representation of the present invention's second preferred embodiment;
Fig. 7 be embodiment illustrated in fig. 6 in, client terminal is subscribed to the handling process of real-time video state information;
Fig. 8 is the real-time video shared system structural representation of the present invention's the 3rd preferred embodiment;
Fig. 9 is the real-time video shared system structural representation of the present invention's the 4th preferred embodiment;
Figure 10 be embodiment illustrated in fig. 9 in, realize the handling process that real-time video is shared.
Embodiment
For making purpose technical scheme of the present invention and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in more detail." in real time " in the said real-time video of the present invention is broad sense, be not only absolute real-time, also comprise quasi real time, all there is certain time-delay in real-time video in application, but within the specific limits, delay as several seconds or a few minutes all can allow, below to two kinds of system and methods of realizing the real-time video information sharing provided by the invention, describe respectively.
First kind of system and method for realizing the real-time video information sharing of the present invention, a video resource index server is set in system, receive the also real-time video resource information of stored stream media server transmission, each client terminal is by visit real-time video resource index server, obtain the real-time video resource information, and download and play real-time video information to corresponding streaming media server according to this real-time video resource information, realized that concentrating of various real-time video information share.
Second kind of system and method for realizing the real-time video information sharing of the present invention, a video resource index server also is set in system, receive the also real-time video resource information of stored stream media server transmission, each client terminal is to real-time video resource index server requests real-time video, the video resource index server obtains real-time video according to the real-time video resource information to streaming media server and is transmitted to each client terminal, has realized that concentrating of various real-time video information is shared.
At first, lifting three preferred embodiments is elaborated to first kind of system and method for realizing the real-time video information sharing.
Referring to Fig. 2, Fig. 2 is the real-time video shared system structural representation of the present invention's first preferred embodiment.This system comprises: camera head 201, streaming media server 202, video resource index server 203, client terminal 204 and optional advertisement video server 205.
Streaming media server 202 links to each other with one or more camera heads 202, and the real-time video resource information that will comprise this streaming media server address stores video resource index server 203 into; And after receiving the real-time video request, will generate the real-time video stream medium data from the video information that camera head 201 receives, and this real-time video stream medium data will be played to client terminal 204 by internet 210.
Video resource index server 203 links to each other respectively with one or more streaming media servers 202, the real-time video resource information that storage receives from each streaming media server; Receive the video resource request that client terminal 204 sends by internet 210, and, will comprise the real-time video resource information of streaming media server address, return to client terminal 204 by internet 210 according to user's needs.
Video resource index server 203 is after the video resource request that receives client terminal 204 transmissions, should ask and the real-time video resource information is transmitted to an advertisement video server 205, and the address information of advertisement video server was sent to client terminal 204.
In the present embodiment, client terminal 204 is to communicate by internet 210 and video resource index server 203 and streaming media server 202, in the practical application, can also communicate by local area network (LAN) or other networks.Can communicate by network communication protocols such as ICP/IP protocol or Session Initiation Protocol between streaming media server 202 in the present embodiment and video resource index server 203 and the advertisement video server 205.
Referring to Fig. 3, Fig. 3 be embodiment illustrated in fig. 2 in, do not comprise the handling process that the realization real-time video under the advertisement video server situation is shared.This flow process may further comprise the steps:
Step 301, client terminal sends the video resource request to the video resource index server.
Step 302, the video resource index server receives the video resource request, obtains to comprise the real-time video resource information of streaming media server address information, and this real-time video resource information is returned to client terminal.
Step 303, client terminal sends the real-time video request according to the address information in this real-time video resource information to streaming media server.
Step 304, streaming media server are gathered video information according to the real-time video request from camera head, and video information is generated the real-time video stream medium data.
In this step, streaming media server can be encoded to stream media format from the video information compression that camera head receives, if camera head comprises pick-up, then streaming media server also carries out compressed encoding together with audio frequency, generates the real-time video stream medium data.
Step 305, streaming media server is play the real-time video stream medium data to client terminal.
The address information that can comprise client terminal in the real-time video request that client terminal sends in the present embodiment, this step can for: streaming media server according to the address information in the real-time video request, with the time video stream media data playback give client terminal.
In the present embodiment, video resource index server storage and the real-time video resource information that sends to client terminal are except comprising described streaming media server address information, and can also comprise: real-time video resource state information, real-time video resource location information, real-time video resource class information, real-time video resource are controlled one or more in the information.
When the real-time video resource information comprised real-time video state of resources information: described streaming media server further arrived the video resource index server with real-time video state of resources information real-time update; In the above-mentioned steps 303, client terminal sends the real-time video request according to address information in this real-time video resource information and state information to streaming media server.
Wherein, streaming media server can be the state information request that streaming media server receiver, video resource index server sends by pre-set time interval with real-time video state of resources information stores to the method for video resource index server, according to this request to video resource index server return state information; The video resource index server upgrades with the state information that receives.Perhaps, when real-time video state of resources information changed, described streaming media server upgraded up-to-date real-time video resource state information to the video resource index server.
In the present embodiment, the real-time video resource state information can comprise whether resource is available, the real-time summary picture of this real-time video resource current accessed number or information on load and this real-time video resource, in above-mentioned steps 302, when the video resource index server receives the request of real-time video resource, detect the number of visiting people or the load of this real-time video resource earlier; Reach predefined and go up in limited time when detecting the number of visiting people or load, by certain hour at interval to the streaming media server request picture of making a summary in real time; And after receiving the real-time summary picture that streaming media server returns, it is added real-time video resource state information send to user terminal; Be lower than predefined going up in limited time when the number of visiting people or load drop to, video resource index server notice client terminal obtains the real-time video stream medium data to streaming media server.
In actual applications, the video resource index server by certain hour at interval before picture is made a summary in the streaming media server request in real time, the video resource index server can send to user terminal with up-to-date one or more picture, the time corresponding that Shows Picture of this real-time video resource of current storage.
In the present embodiment, the real-time video resource state information can only comprise resource whether available and this real-time video resource current accessed number or information on load; Reach predefined and go up in limited time when described streaming media server detects the number of visiting people or load, or behind the play stream media data certain hour, change into by certain hour and send real time picture to client terminal at interval.
When the real-time video resource information comprised real-time video resource location information: the video resource index server carried out index by real-time video resource location information, and by described positional information, position on real-time video resource and the map is mapped, and in above-mentioned steps 302, will be included in the real-time video resource information at the map that correspondence position has marked the real-time video resource and send to client terminal;
When the real-time video resource information comprised real-time video resource class information: the video resource index server carried out index by real-time video resource class information, generate real-time video resource index catalogue, and in above-mentioned steps 302, this catalogue is included in the real-time video resource information sends to client terminal;
When the real-time video resource information comprises that the real-time video resource is controlled information: in the above-mentioned steps 302, the video resource index server is also to controlling the real-time video resource of state, send the video operation and control interface to client terminal, receive the instruction of controlling of user's input, and will control the instruction send streaming media server to, streaming media server is controlled instruction according to this camera head of real-time video resource correspondence is controlled accordingly.
For example: the camera that camera head comprises track and can orbit, then describedly control instruction and comprise the instruction of controlling that orbits, streaming media server is controlled instruction according to this and camera of the camera head of real-time video resource correspondence is carried out on the track operation is controlled.
In addition, when a real-time video resource was being controlled, the video resource index server can be a lock-out state with the information setting of controlling of this real-time video resource, refused the instruction of controlling of other client terminals transmissions.
In the present embodiment, under the situation that does not comprise the advertisement video server, can realize first playing video advertisement data, ask real-time video again by the video resource server.
Specifically, can store one or more video ads data at the video resource index server.In above-mentioned steps 302, real-time video resource index server is when returning the real-time video resource information to client terminal, and the notice client terminal arrives first real-time video resource index server and downloads video ads data.After above-mentioned steps 302, before the step 303, according to notifying to real-time video resource index server download video advertisements data, after playing video advertisement data while or broadcast, execution in step 303 more earlier for client terminal.
If also comprised the type information of real-time video resource in the real-time video resource information, then can each video ads data of storage are relevant with at least one type, like this in the above-mentioned steps 302, real-time video resource index server just can be chosen one from the relevant video ads data of the type of the real-time video resource of client terminal request, the notice client terminal is downloaded this video ads data.
Have again, can also realize in the present embodiment user who uses the video share service is chargeed.Concrete grammar is:
In above-mentioned steps 301, client terminal is before real-time video resource index server sends the video resource request, can carry out the step of authentication earlier: client terminal sends account number cipher to the video resource index server earlier, the video resource index server is checked authentication with it and the account number cipher information of preserving, after authentication is passed through, the record number of the account begins to charge to this number of the account, generates the CDR ticket writing.Can generate the CDR ticket according to different charging policy in the present embodiment, the strategy of charging has multiple, such as can monthly payment chargeing, or pay-per-use, or by the time charge on traffic etc.If adopt mode by the time charge on traffic, then finishing to send the real-time video stream medium data eventually to the client by streaming media server, just when client terminal is closed the real-time video connection, report the time and the flow information of this client terminal playing real-time video to the video resource index server, the video resource index server generates the CDR ticket writing in view of the above.Certainly, to different real-time video resources different charging policy can also be set.
Referring to Fig. 4, Fig. 4 be embodiment illustrated in fig. 2 in, comprise the handling process that the realization real-time video under the advertisement video server situation is shared.This flow process may further comprise the steps:
Step 401, client terminal sends the video resource request to the video resource index server.
Step 402, the video resource index server receives the video resource request, obtains to comprise the real-time video resource information of streaming media server address information, and should ask and the real-time video resource information is transmitted to an advertisement video server.
Step 403, the video resource index server sends to client terminal with the address information of advertisement video server.
Step 404, client terminal arrives advertisement video server download video advertisements data according to the address information of advertisement video server, and receives the advertisement video server is downloaded the back transmission in the video ads data real-time video resource information.
Step 405, client terminal sends the real-time video request according to the streaming media server address information the real-time video resource information that receives from the advertisement video server to streaming media server.
Step 406, streaming media server are gathered video information according to the real-time video request from camera head, and video information is generated the real-time video stream medium data.
Step 407, streaming media server is play the real-time video stream medium data to client terminal.
In the present embodiment, the multicast mode is adopted in the broadcast of Streaming Media, and the router in the network can once copy to packet on a plurality of passages, realizes that the separate unit server can send data flow simultaneously continuously to a plurality of client terminals.Streaming media server only need send a packets of information, rather than a plurality of, and all send the client terminal of request and share same packets of information.Stream medium data can send to the client terminal of arbitrary address, can reduce the total amount of the packets of information of transmission over networks.Therefore, network utilisation efficient can improve greatly, and cost greatly descends.And a plurality of client terminal requests all is real-time video, even client terminal is not an access stream media server simultaneously, streaming media server also can play identical content and give each client terminal, and these characteristics make real-time video traffic be well suited for multicast.
Concrete grammar is referring to Fig. 5, Fig. 5 be embodiment illustrated in fig. 2 in, client terminal is downloaded the concrete handling process of real time video data to streaming media server.This flow process may further comprise the steps:
Step 501, streaming media server start the video thread video information are gathered.
In the present embodiment, streaming media server can start video simultaneously, two threads of audio frequency are gathered video and audio frequency respectively, puts into and looks (sound) buffering area frequently.
Step 502, streaming media server are received the connection request that client terminal sends, and set up TCP and connect signalling path.
Step 503, streaming media server send multicast address and port numbers by signalling path to client terminal.
In the present embodiment,, then send two groups of multicast address and port numbers, respectively corresponding video and two threads of audio frequency if promptly there is video that audio frequency is also arranged.
Step 504, client terminal start the video reception thread after receiving multicast address and port numbers.
If promptly there is video that audio frequency is also arranged, start video and two receiving threads of audio frequency.
Step 505, client terminal and streaming media server are set up the UDP message passage.
Step 506, streaming media server will be looked (sound) and frequently be carried out sending to client terminal by the UDP message channel multicast of setting up behind the compressed encoding.
Step 507, client terminal receive the compressed video bag and decoding and displaying is play.
Certainly, also can adopt mode of unicast to come play stream media data in the practical application, detailed process and shown in Figure 5 basic identical, those skilled in the art are easy to realize, repeat no more here.
Present embodiment can adopt the Internet WEB mode to realize, video resource index server operation WWW service is with web displaying real-time video resource information, and the user uses the WEB browser by internet access video resource index server on client terminal.In addition, all right corresponding BBS forum of each real-time video resource when the video resource index server shows the real-time video resource information, shows the information of the corresponding BBS of this real-time video resource forum, simultaneously as user's message record.
First kind of system and method for realizing the real-time video information sharing of the present invention can also adopt the integrated mode of immediate state service to realize, specifically can there be dual mode to realize, first kind of implementation is referring to Fig. 6, and Fig. 6 is the real-time video shared system structural representation of the present invention's second preferred embodiment.Present embodiment is on the basis of first preferred embodiment shown in Figure 2, improves.Described system configuration of this system configuration and Fig. 2 and function are basic identical, difference is: be provided with the immediate status server 606 that links to each other with video resource index server 203 in system, and be provided with immediate status client unit 607 at video resource index server 203, in each client terminal 204, be provided with immediate status client unit 600.
Streaming media server 202 in the present embodiment the function in having first embodiment, also further arrives video resource index server 203 with real-time video state of resources information real-time update; Streaming media server 202 is that the immediate status client unit 600 in client terminal 204 is play the real-time video stream medium data.
Video resource index server 203 in the present embodiment, the function in having first embodiment, information such as the title, geographical position of each real-time video resource have been stored in the registration on instant state server 606 of immediate status client unit 607 wherein, and accept the immediate state service identification information that immediate status server 606 distributes, and video resource index server 203 by immediate status client unit 607 constantly with each real-time video state of resources information updating to immediate status server 606.The immediate state service identification information here can be immediate state service number or unified resource sign URI, for example: SIP:video8@abcd.com.
The immediate state service identification information of immediate status client unit 600 each real-time video resource statuss of record in the client terminal 204, for example: the immediate state service number or the unified resource sign URI of corresponding real-time video resource are joined contacts list, to the real-time video state of resources information of immediate status server 606 these identification information correspondences of subscription, client terminal 204 is according to this service identification information request video resource.
The operation principle of other devices in the present embodiment and implementation method and embodiment illustrated in fig. 2 identical, no longer repeat specification here.Below the method for only client terminal being subscribed to the real-time video state information describes:
Referring to Fig. 7, Fig. 7 be embodiment illustrated in fig. 6 in, client terminal is subscribed to the handling process of real-time video state information.This flow process may further comprise the steps:
Step 700, the video resource index server obtains the video resource state information in real time from streaming media server.
Step 701, the video resource index server sends to the immediate status server in real time with the video resource state information that obtains.
Step 702, the immediate status server update is also stored each real-time video state of resources information.
Step 703, the immediate status client unit in the client terminal sends the real-time video state information request of subscribing to the immediate status server.
Step 704, the immediate status server returns the real-time video state information by the immediate status client unit of subscribing manner in client terminal.For example: can regularly return, also can when state information changes, return.
Second kind is adopted the integrated implementation of immediate state service can be with reference to figure 6, and this mode is with difference shown in Figure 6: do not comprise immediate status server 606 in the system, by the function of video resource index server 203 realization immediate status servers 606.Specifically:
The immediate state service identification information of each real-time video resource statuss of immediate status client unit 600 record in the client terminal 204, and subscribe to the real-time video state of resources information of this identification information correspondence to the video resource index server 203; Send the real-time video request according to real-time video state of resources information to streaming media server 202.
Video resource index server 203 further receives the subscribe request of the immediate status client unit 600 of client terminal 204, according to this request, the real-time video state of resources information that client terminal 204 is subscribed to returns to the immediate status client unit 600 in the client terminal 204.
The immediate status client unit 600 of streaming media server 202 in client terminal 204 play the real-time video stream medium data.
Referring to Fig. 8, Fig. 8 is the real-time video shared system structural representation of the present invention's the 3rd preferred embodiment.Present embodiment also is on the basis of first preferred embodiment shown in Figure 2, improves.Described system configuration of this system configuration and Fig. 2 and function are basic identical, and difference is: this system also comprises the mobile communication terminal 802 that has camera 801.
Set up the transmission of flow media data passage by the WAP gateway in the mobile communications network 803 between the mobile communication terminal 802 of this band camera 801 and the streaming media server 202, and the real time video data that mobile communication terminal 802 is taken camera 801 passes through this data transmission channel, uploads to streaming media server 202.
The operation principle of other devices in the present embodiment and implementation method and embodiment illustrated in fig. 2 identical, no longer repeat specification here.
Then, lifting a preferred embodiment is elaborated to second kind of system and method for realizing the real-time video information sharing.
Present embodiment is to provide real-time video traffic by Multimedia Message (MMS).Referring to Fig. 9, Fig. 9 is the real-time video shared system structural representation of the present invention's the 4th preferred embodiment.This system comprises camera head 201, streaming media server 202, video resource index server 203, client terminal 204 and optional advertisement video server 205, streaming media server 202 links to each other with one or more camera heads 201, and video resource index server 203 links to each other with mobile communication terminal 204 with Multimedia Message center 902 by the short message service center 901 in the mobile communications network.
Wherein, the streaming media server 202 real-time video resource information that will comprise this streaming media server address stores video resource index server 203 into; And after receiving the real-time video request, to generate the real-time video stream medium data from the video information that camera head 201 receives, and this real-time video stream medium data sent to Multimedia Message center 902 in the mobile communications network by video resource server 203
Video resource index server 203 links to each other respectively with one or more streaming media servers 202, the real-time video resource information that storage receives from each streaming media server 202; Receive the real-time video request that short message service center 901 transmits, obtain the real-time video resource information according to user's needs, and be transmitted to corresponding streaming media server 202, and receive the real-time video stream medium datas from streaming media server 202 and be transmitted to Multimedia Message center 902 mobile communications network according to the address information in this real-time video resource information;
Short message service center 901 receives the real-time video request short message that mobile communication terminal 204 sends, and is the data that video resource index server 203 can receive with this short message conversion, is transmitted to video resource index server 203.
The real-time video stream medium data that Multimedia Message center 902 receiving stream media servers 202 send is converted to Multimedia Message, sends to mobile communication terminal 204.
With above-mentioned Fig. 2, Fig. 6, embodiment illustrated in fig. 8 identical, the advertisement video server 205 in the present embodiment also is an optional equipment, and can have in the system not to have yet, and can have one also can have a plurality of.When comprising advertisement video server 205 in the system, each advertisement video server 205 links to each other with described video resource index server 203, and the address information of video resource index server 203 each advertisement video servers of storage.In this case:
Video resource index server 203 is transmitted to an advertisement video server 205 with this request after receiving the real-time video request of mobile communication terminal 204 by short message service center's 901 transmissions; And receiving after advertisement video server 205 sends the notice of ad data, obtain the real-time video resource information according to user's needs, and this real-time video request is transmitted to corresponding streaming media server 202 according to the address information in this real-time video resource information.
After mobile communication terminal 204 receives the video ads data of advertisement video server 205 transmissions by Multimedia Message center 902, the real-time video stream medium data that receiving stream media server 202 is play by Multimedia Message center 902.
In the present embodiment, client terminal 204 is to communicate by mobile communications network and video resource index server 203 and streaming media server 202, in the practical application, can also communicate by other networks.Also can communicate between streaming media server 202 in the present embodiment and video resource index server 203 and the advertisement video server 205 by network communication protocols such as ICP/IP protocol or Session Initiation Protocol
Equally, in the system of present embodiment, can also comprise the mobile communication terminal (not shown among Fig. 9) that has camera.This mobile communication terminal is uploaded the method for real time video data and embodiment illustrated in fig. 8 identical to streaming media server, no longer repeats here.
Referring to Figure 10, Figure 10 be embodiment illustrated in fig. 9 in, realize the handling process that real-time video is shared.This flow process is not comprise handling process under the advertisement video server situation in system, specifically may further comprise the steps:
Step 10, the mobile communication terminal short message service center in mobile communications network sends the real-time video request short message.
Step 11, short message service center is converted to the data that the video resource index server can receive with this real-time video request short message, is transmitted to the video resource index server.
Step 12, the video resource index server obtains to comprise the real-time video resource information of streaming media server address information, and sends the real-time video request according to this real-time video resource information to streaming media server.
Step 13, streaming media server streaming media server will generate the real-time video stream medium data and return to the video resource index server according to the real-time video request from the video information that camera head receives.
Step 14, the video resource index server returns the real-time video stream medium data by the MM7 interface to the Multimedia Message center.
Step 15, the Multimedia Message center is converted to Multimedia Message with the real-time video stream medium data, sends to mobile communication terminal.
Equally, in the present embodiment, do not comprise in system under the situation of advertisement video server, can realize playing video advertisement yet by the video resource index server.Concrete grammar is:
Further store one or more video ads data by the video resource index server.In above-mentioned steps 12, real-time video resource index server returns video ads data by mind-set mobile communication terminal in the Multimedia Message earlier, in the playing video advertisement data while or after playing, transmit the real-time video request to streaming media server according to the real-time video resource information.
In this case, can also in the real-time video resource information, comprise the type information of real-time video resource, and each the video ads data that will store are relevant with at least one type; In the above-mentioned steps 12, real-time video resource index server is chosen one and is sent to client terminal from the relevant video ads data of the type of the real-time video resource of mobile communication terminal request.
By the above embodiments as seen, these the two kinds system and methods of realizing the real-time video information sharing of the present invention have realized that concentrating of various real-time video information is shared, can be applied in the various environment, satisfy the demand of user to multiple real-time video information.
Claims (22)
1. method that realizes the real-time video information sharing, it is characterized in that: streaming media server has stored the streaming media server address information in the real-time video resource information into the video resource index server in advance, and the real-time video resource state information real-time update in the real-time video resource information is arrived the video resource index server; The process that client terminal obtains real-time video information may further comprise the steps:
A, client terminal send the video resource request to the video resource index server;
B, video resource index server receive the video resource request, obtain to comprise the real-time video resource information of streaming media server address information and real-time video resource state information, and this real-time video resource information is returned to client terminal;
C, client terminal send the real-time video request according to address information in this real-time video resource information and state information to streaming media server;
D, streaming media server will generate the real-time video stream medium data and play to client terminal according to the real-time video request from the video information that camera head receives.
2. the method for claim 1 is characterized in that:
In the described steps A, client terminal sends the video resource request by internet or local area network (LAN) to the video resource index server;
Among the described step B, the video resource index server returns to client terminal by the real-time video resource information that described internet or local area network (LAN) will comprise the streaming media server address;
Among the described step C, the real-time video request that client terminal sends to streaming media server by internet or local area network (LAN);
Among the described step D, streaming media server plays to client terminal by described internet or local area network (LAN) with the real-time video stream medium data.
3. method as claimed in claim 2 is characterized in that: described video resource index server operation WWW service is with web displaying real-time video resource information; Described client terminal uses the WEB browser by access to the Internet video resource index server;
The video resource index server is communicated by letter with streaming media server by ICP/IP protocol or Session Initiation Protocol.
4. the method for claim 1 is characterized in that, described real-time video resource information further comprises: real-time video resource location information, real-time video resource class information, real-time video resource are controlled one or more in the information.
5. method as claimed in claim 4 is characterized in that:
When described real-time video resource information comprised real-time video resource location information: the video resource index server carried out index by real-time video resource location information, and by described positional information, position on real-time video resource and the map is mapped, and will be included in the real-time video resource information at the map that correspondence position has marked the real-time video resource and sends to client terminal;
When described real-time video resource information comprised real-time video resource class information: the video resource index server carried out index by real-time video resource class information, generate real-time video resource index catalogue, this catalogue is included in the real-time video resource information sends to client terminal;
Described real-time video resource information comprises when the real-time video resource is controlled information: among the described step B, the video resource index server is to controlling the real-time video resource of state, send the video operation and control interface to client terminal, receive the instruction of controlling of user's input, and will control the instruction send streaming media server to, streaming media server is controlled instruction according to this camera head of real-time video resource correspondence is controlled accordingly.
6. the method for claim 1 is characterized in that, described streaming media server with real-time video state of resources information stores to the method for video resource index server is:
The state information request that described streaming media server receiver, video resource index server sends by pre-set time interval is asked to video resource index server return state information according to this; The video resource index server upgrades with the state information that receives;
Or when real-time video state of resources information changed, described streaming media server upgraded up-to-date real-time video resource state information to the video resource index server.
7. method as claimed in claim 6 is characterized in that: described real-time video resource state information comprises whether resource is available, the real-time summary picture of this real-time video resource current accessed number or information on load and this real-time video resource;
Among the described step B, when the video resource index server receives the request of real-time video resource, detect the number of visiting people or the load of this real-time video resource earlier; Reach predefined and go up in limited time when detecting the number of visiting people or load, by certain hour at interval to the streaming media server request picture of making a summary in real time; And after receiving the real-time summary picture that streaming media server returns, it is added real-time video resource state information send to user terminal;
Drop to and be lower than predefined going up in limited time when detecting the number of visiting people or load, video resource index server notice client terminal obtains the real-time video stream medium data to streaming media server.
8. method as claimed in claim 7, it is characterized in that: among the described step B, the video resource index server by certain hour at interval before picture is made a summary in the streaming media server request in real time, the video resource index server sends to user terminal with up-to-date one or more picture, the time corresponding that Shows Picture of this real-time video resource of current storage.
9. method as claimed in claim 6 is characterized in that: described real-time video resource state information comprises resource whether available and this real-time video resource current accessed number or information on load;
Reach predefined and go up in limited time when described streaming media server detects the number of visiting people or load, or behind the play stream media data certain hour, change into by certain hour and send real time picture to client terminal at interval.
10. the method for claim 1, it is characterized in that: described client terminal comprises the immediate status client unit;
Described immediate status client unit writes down the immediate state service identification information of each real-time video resource status, and subscribes to the real-time video state of resources information of this identification information correspondence to the video resource index server; Send the real-time video request according to real-time video state of resources information to streaming media server;
Described video resource index server further receives the subscribe request of the immediate status client unit of client terminal, and according to this request, the real-time video state of resources information that client terminal is subscribed to returns to the immediate status client unit in the client terminal;
Among the described step D, the immediate status client unit of streaming media server in client terminal play the real-time video stream medium data.
11. the method for claim 1 is characterized in that, this system further comprises the immediate status server; Described video resource index server and client terminal comprise the immediate status client unit respectively;
Immediate status client unit in the described video resource index server is each real-time video resource information of registration storage on instant state server in advance, and accept the immediate state service identification information of immediate status server-assignment, and the video resource index server constantly with each real-time video state of resources information updating to the immediate status server;
Immediate status client unit in the described client terminal writes down the immediate state service identification information of each real-time video resource status in advance, subscribes to the real-time video state of resources information of this identification information correspondence to the immediate status server;
After the subscribe request of described immediate status server immediate status client unit in receiving client terminal, according to this request, the real-time video state of resources information that client terminal is subscribed to returns to the immediate status client unit in the client terminal;
Among the described step D, the immediate status client unit of streaming media server in client terminal play the real-time video stream medium data.
12. method as claimed in claim 5, it is characterized in that, this method further comprises: when a real-time video resource was being controlled, the video resource index server was a lock-out state with the information setting of controlling of this real-time video resource, refused the instruction of controlling of other client terminals transmissions.
13. method as claimed in claim 12 is characterized in that: the camera that described camera head comprises track and can orbit, describedly control instruction and also comprise the instruction of controlling that orbits;
Described streaming media server is controlled instruction according to this and camera of the camera head of real-time video resource correspondence is carried out on the track operation is controlled.
14. as claim 1,2,10 or 11 described methods, it is characterized in that: described video resource index server is the one or more video ads data of storage further;
Among the described step B, real-time video resource index server is when returning the real-time video resource information to client terminal, and the notice client terminal arrives first real-time video resource index server and downloads video ads data;
Among the described step C, client terminal to real-time video resource index server download video advertisements data, in the playing video advertisement data while or after playing, sends the real-time video request according to the real-time video resource information to streaming media server according to notice.
15. method as claimed in claim 14 is characterized in that: also comprise the type information of real-time video resource in the described real-time video resource information, each video ads data of described storage are relevant with at least one described type;
Among the described step B, real-time video resource index server is chosen one from the relevant video ads data of the type of the real-time video resource of client terminal request, and the notice client terminal is downloaded this video ads data.
16. as claim 1,2,10 or 11 described methods, it is characterized in that: the advertisement video server that one or more store video ad datas further are set in system; Each advertisement video server links to each other with described video resource index server, and the video resource index server is stored the address information of each advertisement video server;
Among the described step B, after the video resource index server receives the video resource request of client terminal transmission, should ask and the real-time video resource information is transmitted to an advertisement video server, and the address information of advertisement video server was sent to client terminal;
Described step B also comprises: client terminal arrives described advertisement video server download video advertisements data according to the address information of advertisement video server, and receives the advertisement video server is downloaded the back transmission in the video ads data real-time video resource information;
Among the described step C, client terminal sends the real-time video request according to the real-time video resource information that receives from the advertisement video server to streaming media server.
17., it is characterized in that: further in system, comprise: the mobile communication terminal of band camera as claim 1,2,10 or 11 described methods;
The mobile communication terminal of described band camera and streaming media server are set up the transmission of flow media data passage via the WAP gateway in the mobile communications network, and the real time video data that camera is taken is passed through this data transmission channel, upload to streaming media server.
18. method as claimed in claim 2 is characterized in that: the address information that comprises client terminal in the real-time video request that described client terminal sends;
Described step D is: streaming media server is according to the address information in the real-time video request, to be encoded to stream media format from the video information compression that camera head receives, if camera head comprises pick-up, then streaming media server also carries out compressed encoding together with audio frequency, generates the real-time video stream medium data and plays to client terminal.
19. method as claimed in claim 18 is characterized in that, described step D comprises:
D1, streaming media server obtain video information from camera head;
D2, streaming media server and client terminal are set up signalling path, and broadcast address and port numbers are sent to client terminal;
D3, client terminal and streaming media server are set up data channel;
D4, streaming media server send to client terminal with it by this data channel after video information is generated the video stream media data;
D5, client terminal receiving stream media data display the play.
20. method as claimed in claim 19 is characterized in that: among the described step D2, streaming media server sends to client terminal with multicast address and port numbers;
Among the described step D4, streaming media server sends to router in internet or the local area network (LAN) with the real-time video stream medium data; Router will send to a plurality of clients continuously from the real-time video stream medium data that the separate unit streaming media server receives in the multicast mode simultaneously.
21. the method for claim 1 is characterized in that:
In the described steps A, client terminal is carried out the step of authentication earlier before real-time video resource index server sends the video resource request, after authentication is passed through, the record number of the account, real-time video resource index server begins to charge to this number of the account, generates the CDR ticket writing.
22. method as claimed in claim 21 is characterized in that: generate the CDR ticket according to different charging policy; If adopt mode by the time charge on traffic, then finishing when the client sends the real-time video stream medium data eventually by streaming media server, report the time and the flow information of this client terminal playing real-time video to the video resource index server, the video resource index server generates the CDR ticket writing in view of the above.
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