CN101102212A - End-to-end information transmission method and system - Google Patents
End-to-end information transmission method and system Download PDFInfo
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- CN101102212A CN101102212A CNA2007101197869A CN200710119786A CN101102212A CN 101102212 A CN101102212 A CN 101102212A CN A2007101197869 A CNA2007101197869 A CN A2007101197869A CN 200710119786 A CN200710119786 A CN 200710119786A CN 101102212 A CN101102212 A CN 101102212A
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Abstract
The method comprises: after the first end terminal detects an operation instruction for asking a fast playing sent from user, it sends the fast playing request message to the control backstage server; the control backstage server sends the fast playing instruction message to the first end terminal that is currently providing video transmission for a second end terminal; according to the fast playing instruction message, the second end terminal provides fast playing for the first end terminal. The system thereof comprises: a first end terminal, and a second end terminal and a control backstage server. The invention releases the fast forward and fast backward playing operation under the P2P transmission mode.
Description
Technical field
The present invention relates to a kind of method and system of message transmission, relate in particular to a kind of based on end-to-end (PeerTo Peer, hereinafter to be referred as: P2P) transmission technology is carried out the method and system of message transmission, belongs to the P2P information transmission technology.
Background technology
The P2P transmission technology is a kind of video transmission mode relative with customer end/server mode, and it allows two equality main frames to be connected with each other to carry out exchange files, rather than needs to be connected to that server is browsed or file in download as customer end/server mode.The system frame structure of existing P2P transmission mode comprises control background server and a plurality of end main frame (or being called Peer) two parts as shown in Figure 1.The video source seed can be that a special seed server provides also and can be provided by one or more end main frames.In existing P2P video transmission mechanism, any one end main frame that has video resource also can provide service for other needs the end main frame of this resource simultaneously.The resource allocation of whole P2P service system is responsible for by the control background server fully.For example, when the end host A needs resource, the end host A is at first initiated request to the control background server, when the control background server finds that the end host B in the Resource TOC has this resource, sends command request end host B to the end host B and sends resource needed to the end host A.
The defective of prior art is: under existing P2P transmission mode, user video stream can only be play with normal speed, and the user can't carry out F.F. or fast reverse operation to the video flowing in the transmission.
Summary of the invention
The problem to be solved in the present invention is: provide a kind of can the realization to carry out the F.F. of message transmission or the technology of fast reverse play based on the P2P technology.
In order to address the above problem, one embodiment of the present of invention have provided a kind of end-to-end information transmission method, comprising:
After the first end main frame detects the operational order that will play fast of user's input, send quick playing request message to the control background server;
This quick playing request message of control background server basis is to sending quick play instruction message for the first end main frame provides the second end main frame of video transmission;
The second end main frame is the quick displaying video of the first end main frame according to this quick play instruction message.
In order to address the above problem, one embodiment of the present of invention have provided a kind of end-to-end information transmission system, comprising: the first end main frame, the second end main frame and control background server, wherein,
The first end main frame comprises:
The first end module is used for behind the operational order that will play fast that detects user's input, sends quick playing request message to the control background server;
The second end module is used for generating non-key frame according to the key frame that comes from second host module that receives;
The 3rd end module is used for according to the key frame that comes from second host module that receives and puts video soon by the non-key frame generation that the second end module generates playing fast.
The control background server comprises:
First background module is used for searching the second end main frame that video transmission is provided for the described first end main frame according to the quick playing request message that comes from the first end module;
Second background module is used for sending quick play instruction message to the described second end main frame that first background module finds;
The second end main frame comprises:
First host module is used for obtaining key frame from progress video after receiving the quick play instruction message that comes from second background module;
Second host module, the key frame that first host module is got access to carries out extracting every frame, and sends to the described first end main frame.
By the present invention, realized carried out the operation of F.F. or fast reverse play based on the video flowing under the P2P transmission mode.And, because the data volume of key frame is very little, therefore,, can not increase the burden of control background server by the control of key frame realization to F.F. or fast reverse play, can not increase pressure to bandwidth yet.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is the system frame structure of existing P2P transmission mode;
Fig. 2 is the flow chart of the embodiment of the invention 1 described end-to-end information transmission method;
Fig. 3 is the flow chart of the quick displaying video step of the embodiment of the invention 1 described realization main frame;
Fig. 4 is the structural representation of the embodiment of the invention 2 described end-to-end information transmission systems;
Fig. 5 is the structural representation of the embodiment of the invention 3 described end-to-end information transmission systems.
Embodiment
Embodiment 1
Present embodiment provides a kind of end-to-end information transmission method, as shown in Figure 2, comprising:
After step 101, the first end main frame detect the operational order that will play fast of user's input, send quick playing request message to the control background server.
Wherein, the first end main frame and the second end main frame are carrying out end-to-end video transmission, and particularly, the first end main frame is receiving the video that comes from the transmission of the second end main frame.When the user of the first end main frame need carry out F.F. or fast reverse operation to the video flowing that is transmitting, the operational order that can play fast to first end main frame input, particularly, this operational order can require fast-forward play or fast reverse play.If require the operational order of fast-forward play, then the first end main frame is the quick playing request message of forward direction to the quick playing request message that the control background server sends, and is used to ask the video to current broadcast to carry out fast-forward play; If require the operational order of fast reverse play, then the first end main frame is reverse quick playing request message to the quick playing request message that the control background server sends, and is used to ask the video to current broadcast to carry out fast reverse play.
Particularly, according to the corresponding playing request message fast that comes from the first end main frame, this quick play instruction message can be the quick play instruction message of forward direction, is used to indicate the described second end main frame that the video of current broadcast is carried out fast-forward play; Or reverse quick play instruction message, be used to indicate the described second end main frame that the video of current broadcast is carried out fast reverse play.
Particularly, if the quick play instruction message that the second end main frame receives is the quick play instruction message of forward direction, then forward direction obtains key frame from progress video; If the quick play instruction message that the second end main frame receives is reverse quick play instruction message, then the reverse key frame that obtains from progress video.
Particularly, if this key frame that obtains forward direction in step 103A acquires, then this key frame is carried out forward direction and extract every frame; If this key frame that obtains reverse acquiring in step 103A then carries out reversely extracting every frame to this key frame.And, can also determine parameter according to the parameter information that carries in the quick play instruction message, thereby realize control the speed of F.F. or fast reverse play every the frame extraction.For example, if regulation requires to carry out the Quad Data Rate broadcast in quick play instruction message, then will extract a key frame every three key frames.
Wherein, key frame is meant and a kind ofly can carries out independent decoding and by the frame of other frame references.In existing video encoding and decoding standard, mainly contain three types frame, i.e. I frame, P frame and B frame.The I frame is exactly the frame that intraframe coding produces, and it can provide random-access access site; The P frame is by carrying out the frame that forward prediction obtains based on the I frame, the frame that produces by interframe encode just, and the P frame that current prediction obtains can be used as the reference value of P frame in the future again; The B frame is by carrying out the bi-directional predicted frame that obtains based on I frame, P frame, need previous and follow-up frame to do reference when prediction, and the B frame can not be as the prediction reference of other frames.This shows that the I frame can be used as key frame.
Particularly, obtain, then to generate forward direction and put video soon and carry out fast-forward play if this key frame that receives forward direction in step 103B extracts every frame; If this key frame that receives reverse extraction every frame in step 103B obtains, then generate the reverse video of putting soon and carry out fast reverse play.
Wherein, video resource exhaust be meant the second end main frame the video resource of the first end host request all F.F. or fast reverse play arrived the edge, do not have more video resource to offer the first end main frame.
Particularly, can detect the video resource of the second end main frame,, send the video switch instruction message to the 3rd end main frame when detecting the second end main frame when video resource occurring and exhausting by the control background server.In addition, also can detect,, send the video switch request message to the control background server when detecting when video resource occurring and exhausting by the video resource of the second end main frame to this second end main frame itself; The control background server sends the video switch instruction message according to the video switch request message that receives to the 3rd end main frame.
By the described method of present embodiment, realized carried out the operation of F.F. or fast reverse play based on the video flowing under the P2P transmission mode.And, because the data volume of key frame is very little, therefore,, can not increase the burden of control background server by the control of key frame realization to F.F. or fast reverse play, can not increase pressure to bandwidth yet.
Embodiment 2
Present embodiment provides a kind of end-to-end information transmission system, as shown in Figure 4, comprising: control background server 10, the first end main frame 20 and the second end main frame 30.Wherein, the first end main frame 20 comprises the first end module, 21, the second end modules 22 and the 3rd end module 23; Control background server 10 comprises first background module 11 and second background module 12; The second end main frame 30 comprises first host module 31 and second host module 32.The concrete work of this system is as follows:
When the user of the first end main frame 20 need play fast to current in progress video, import the operational order that to play fast to the first end main frame 20; The first end module 21 of the first end main frame 20 sends quick playing request message to control background server 10 behind the operational order that detects user's input; First background module 11 of control background server 10 is searched the second end main frame 30 that video transmission is provided for the first end main frame 20 according to the quick playing request message that comes from the first end module 21 of the first end main frame 20; Second background module 12 sends quick play instruction message to the second end main frame 30 that first background module 11 finds;
The second end module 22 of the first end main frame 20 generates non-key frame according to the key frame of second host module 32 that comes from the second end main frame 30 that receives; Generate according to the above-mentioned key frame that receives and by the non-key frame that the second end module 22 generates by the 3rd end module 23 then and put video soon and play fast.Particularly, if the key frame that receives is the key frame that forward direction extracts every frame, then the second end module 22 is carried out fast-forward play; If the key frame that receives is the reverse key frame that extracts every frame, then the second end module 22 is carried out fast reverse play.
By the described system of present embodiment, realized carried out the operation of F.F. or fast reverse play based on the video flowing under the P2P transmission mode.And, because the data volume of key frame is very little, therefore,, can not increase the burden of control background server by the control of key frame realization to F.F. or fast reverse play, can not increase pressure to bandwidth yet.
Embodiment 3
Present embodiment provides the another kind of end-to-end information transmission system, as shown in Figure 5, except comprising embodiment 2 described control background servers 10, the first end main frame 20 and the second end main frame 30, also comprise: the 3rd end main frame 40 wherein has the video resource that the first end main frame 20 is asked.In addition, the second end main frame 30 also comprises the 3rd host module 33, and control background server 10 also comprises the 3rd background module 13.The concrete course of work is as follows:
After the second end main frame 30 began to be the first end main frame, 20 quick displaying videos, 33 pairs of these second end main frames of the 3rd host module of the second end main frame, 30 video resources own detected.When detecting the second end main frame 30 when video resource occurring and exhausting, send the video switch request messages to control background server 10.The 3rd background module 13 of control background server 10 sends the video switch instruction message to the 3rd end main frame 40 when receiving the video switch request message that comes from the 3rd host module 33.The 3rd end main frame 40 is the first end main frame, 20 quick displaying videos when receiving when coming from the video switch instruction message of controlling background server 10.Fast playing method repeats no more as described in step 103A～103C herein particularly.
Need to prove herein, also can directly the video resource of the second end main frame 30 be detected by the 3rd background module 13 of control background server 10, when detecting the second end main frame 30 when video resource occurring and exhausting, send the video switch instruction messages to the 3rd end main frame 40.
By the described system of present embodiment, except described advantage, also solved the second end main frame and the problem that video resource exhausts occurred with embodiment 2, further improved the quality of video transmission.
It should be noted last that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not break away from the spirit and scope of technical solution of the present invention.
Claims (13)
1, a kind of end-to-end information transmission method is characterized in that, comprising:
After the first end main frame detects the operational order that will play fast of user's input, send quick playing request message to the control background server;
This quick playing request message of control background server basis is to sending quick play instruction message for the first end main frame provides the second end main frame of video transmission;
The second end main frame is the quick displaying video of the first end main frame according to this quick play instruction message.
2, end-to-end information transmission method according to claim 1 is characterized in that, the described second end main frame is that the quick displaying video of the first end main frame specifically comprises according to this quick play instruction message:
From in progress video, obtain key frame;
The key frame that gets access to is carried out extracting every frame, and send to the described first end main frame;
The described first end main frame generates non-key frame according to the key frame that receives;
Generate according to described key frame and non-key frame and to put video soon and play fast.
3, end-to-end information transmission method according to claim 2 is characterized in that,
Described quick playing request message is the quick playing request message of forward direction, is used to ask the video to current broadcast to carry out fast-forward play;
Described quick play instruction message is the quick play instruction message of forward direction, is used to indicate the described second end main frame that the video of current broadcast is carried out fast-forward play;
The described second end main frame obtains key frame and specifically comprises from progress video:
Forward direction obtains key frame from progress video.
4, end-to-end information transmission method according to claim 3 is characterized in that, the described second end main frame carries out comprising every the frame extraction to the described key frame that gets access to:
The described key frame that gets access to is carried out forward direction to be extracted every frame.
5, end-to-end information transmission method according to claim 4 is characterized in that, the described first end main frame generates to be put video soon and play fast and comprise:
The generation forward direction is put video soon and is carried out fast-forward play.
6, end-to-end information transmission method according to claim 2 is characterized in that,
Described quick playing request message is reverse quick playing request message, is used to ask the video to current broadcast to carry out fast reverse play;
Described quick play instruction message is reverse quick play instruction message, is used to indicate the described second end main frame that the video of current broadcast is carried out fast reverse play;
The described second end main frame obtains key frame and specifically comprises from progress video:
The reverse key frame that obtains from progress video.
7, end-to-end information transmission method according to claim 6 is characterized in that, the described second end main frame carries out comprising every the frame extraction to the described key frame that gets access to:
The described key frame that gets access to is carried out reversely extracting every frame.
8, end-to-end information transmission method according to claim 7 is characterized in that, the described first end main frame generates to be put video soon and play fast and comprise:
Generate the reverse video of putting soon and carry out fast reverse play.
9, end-to-end information transmission method according to claim 1 is characterized in that, the described second end main frame is that the quick displaying video of the described first end main frame also comprises afterwards:
When detecting the described second end main frame when video resource occurring and exhausting, send the video switch instruction message to the 3rd end main frame with video resource that the described first end main frame asked;
Described the 3rd end main frame is the quick displaying video of the described first end main frame according to the described video switch instruction message that receives.
10, end-to-end information transmission method according to claim 9 is characterized in that, sends the video switch instruction message to described the 3rd end main frame and comprises:
Described control background server detects the video resource of the described second end main frame, when detecting the described second end main frame when video resource occurring and exhausting, sends the video switch instruction message to described the 3rd end main frame.
11, end-to-end information transmission method according to claim 9 is characterized in that, sends the video switch instruction message to described the 3rd end main frame and comprises:
The described second end main frame detects the video resource of this second end main frame, when detecting this second end main frame when video resource occurring and exhausting, sends the video switch request message to described control background server;
Described control background server sends the video switch instruction message according to the described video switch request message that receives to described the 3rd end main frame.
12, a kind of end-to-end information transmission system is characterized in that, comprising: the first end main frame, the second end main frame and control background server, wherein,
The first end main frame comprises:
The first end module is used for behind the operational order that will play fast that detects user's input, sends quick playing request message to the control background server;
The second end module is used for generating non-key frame according to the key frame that comes from second host module that receives;
The 3rd end module is used for according to the key frame that comes from second host module that receives and puts video soon by the non-key frame generation that the second end module generates playing fast.
The control background server comprises:
First background module is used for searching the second end main frame that video transmission is provided for the described first end main frame according to the quick playing request message that comes from the first end module;
Second background module is used for sending quick play instruction message to the described second end main frame that first background module finds;
The second end main frame comprises:
First host module is used for obtaining key frame from progress video after receiving the quick play instruction message that comes from second background module;
Second host module, the key frame that first host module is got access to carries out extracting every frame, and sends to the described first end main frame.
13, the end-to-end information transmission system according to claim 12 is characterized in that, also comprises:
The 3rd end main frame has the video resource that the described first end main frame is asked, and is used for when receiving the video switch instruction message that comes from described control background server, is the quick displaying video of the described first end main frame;
The described second end main frame also comprises the 3rd host module, is used for sending the video switch request message when detecting the described second end main frame when video resource occurring and exhausting to described control background server;
Described control background server also comprises the 3rd background module, be used for when detecting the described second end main frame when video resource occurring and exhausting, perhaps when receiving the video switch request message that comes from the 3rd host module, send the video switch instruction message to described the 3rd end main frame.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009115011A1 (en) * | 2008-03-19 | 2009-09-24 | 华为技术有限公司 | Method, device and system for realizing positioning playing of streaming media |
| CN102487458A (en) * | 2010-12-02 | 2012-06-06 | 中兴通讯股份有限公司 | Method for broadcasting and processing TS (Transport Stream) document and device thereof |
| CN108696772A (en) * | 2017-04-11 | 2018-10-23 | 上海谦问万答吧云计算科技有限公司 | A kind of transmission method and device of real-time video |
| CN109194425A (en) * | 2018-08-15 | 2019-01-11 | 西安电子科技大学 | One kind being based on the end-to-end information transmission system of artificial intelligence and method |
-
2007
- 2007-07-31 CN CNB2007101197869A patent/CN100512129C/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009115011A1 (en) * | 2008-03-19 | 2009-09-24 | 华为技术有限公司 | Method, device and system for realizing positioning playing of streaming media |
| CN101540881B (en) * | 2008-03-19 | 2011-04-13 | 华为技术有限公司 | Method, device and system for realizing positioning playing of streaming media |
| US8875201B2 (en) | 2008-03-19 | 2014-10-28 | Huawei Technologies Co., Ltd. | Method, device and system for implementing seeking play of stream media |
| CN102487458A (en) * | 2010-12-02 | 2012-06-06 | 中兴通讯股份有限公司 | Method for broadcasting and processing TS (Transport Stream) document and device thereof |
| CN108696772A (en) * | 2017-04-11 | 2018-10-23 | 上海谦问万答吧云计算科技有限公司 | A kind of transmission method and device of real-time video |
| CN109194425A (en) * | 2018-08-15 | 2019-01-11 | 西安电子科技大学 | One kind being based on the end-to-end information transmission system of artificial intelligence and method |
| CN109194425B (en) * | 2018-08-15 | 2021-04-13 | 西安电子科技大学 | Artificial intelligence based end-to-end information transmission system and method |
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| Publication number | Publication date |
|---|---|
| CN100512129C (en) | 2009-07-08 |
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