CN101146032A - A media streaming transmission bandwidth self-adapted method - Google Patents
A media streaming transmission bandwidth self-adapted method Download PDFInfo
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- CN101146032A CN101146032A CNA2007100303466A CN200710030346A CN101146032A CN 101146032 A CN101146032 A CN 101146032A CN A2007100303466 A CNA2007100303466 A CN A2007100303466A CN 200710030346 A CN200710030346 A CN 200710030346A CN 101146032 A CN101146032 A CN 101146032A
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Abstract
The invention discloses a self-adapting method of media stream transmission bandwidth and pertains to the data communication field. In remote transmission media flow process, the method sets up a buffer pool of a media flow data packet on a master server and decide the bandwidth condition of the networks on both sides of the master server, according to the time interval of the data packet arriving at the buffer pool and the data volume stored in the buffer pool currently and then, performs self-adapting transmission. The main steps are: 1) a user terminal sends out a request order to the master server, which analyzes the order; 2) after the request order analysis, the master server sends out an order of reading out a video message to a video terminal by Ethernet; 3) after receiving the order, the video terminal transmits the data packet of the obtained video data to the server buffer pool with certain velocity; 4) the server responds to the request from the user terminal and realizes data transmission. The media flow transmission realized by the method can guarantee the user obtaining the data packet with enough message volume in time in network congestion, with easier implementation.
Description
Technical field
The present invention relates to a kind of method, promptly in remote transmission Media Stream process, by the Buffer Pool of a media stream data bag is set, carry out adaptive transmission then according to the bandwidth conditions of the current data volume decision network of depositing in the Buffer Pool again on a director server.
Technical background
Transmission medium fails to be convened for lack of a quorum because data volume is too big and problem such as network bandwidth instability causes transfer rate very slow on the internet at present, even causes problem such as transmission failure, causes the user to be difficult to obtain the information that he wants.The technology that addresses this problem that occurs mainly is to use buffer technology at present, by the time data are passed to the user after all arriving again, the user needs sometimes to wait for that the time for a long time also can't see the thing of wanting like this, lost real-time on hand again etc. data arrival user, also some method of using the algorithm frame losing also is difficult to realize with regard to more complicated.The characteristics of this method are, when network congestion, guarantee that the user can obtain representing the packet of enough information more timely, are to be relatively easy to and implement.
Summary of the invention
At above deficiency, the present invention proposes a kind of media streaming transmission bandwidth self-adapted method, the objective of the invention is when user terminal when server sends request screen information, if network congestion this moment, this invention can guarantee that the user can obtain representing the packet of enough information more timely.
This method realizes that the technical scheme that adopts is as follows:
The white method that adapts to of a kind of media streaming transmission bandwidth, it is in remote transmission Media Stream process, by the Buffer Pool of a media stream data bag is set on a director server, carry out adaptive transmission then according to the bandwidth conditions of the current data volume decision network of depositing in the Buffer Pool again, its key step comprises:
1) user terminal sends a request instruction of asking video by communication network to director server, and director server is resolved this instruction.
2) director server is resolved and is finished request command, sends the instruction of reading video information to video terminal by Ethernet again.
3) video terminal receives this instruction, just current screen data of catching is passed to packet in the Buffer Pool of server by Ethernet with certain speed.
4) request of server response user terminal realizes transfer of data.
4.1) in a single day server receive first and return the video data of returning, and just begins to judge the network condition on server both sides;
4.2) transmitting data toward user terminal, this packet arrives the mobile phone end and unpacks the extraction video data again.
Described step 4.1) also comprises the steps:
4.1.1) packet of server receiver, video terminal, and note the time, when receiving next packet, judge that whether 2 time differences between the packet are above preset threshold;
4.1.2) if surpass threshold value, server judges that then video terminal is bad to the network of server end, server then sends the slow down instruction of transmission speed of a requirement to video terminal;
4.1.3) these two steps of back repetition 4.1.1,4.1.2 that slow down, if the time difference that receives between two frames of front and back is no more than threshold value, then video terminal is normal to the network of server, so just normally sends always;
4.1.4) server constantly detects the quantity of frame in the Buffer Pool, threshold value of same setting, if the frame number of depositing in the Buffer Pool surpasses threshold value, just illustrate that server is bad to the network condition of user terminal, data send and do not go out, and just lose a part of frame of front, keep 5 up-to-date frames and send to user terminal, it is too of a specified duration to be unlikely to the video data time-delay that the user receives, and sends simultaneously instruct back video terminal to require its transmission speed that slows down, continuous repetition (4.1.4).
Described user terminal is any terminal equipment that can be connected on the server.
Communication network between described user terminal and server can be realized by GPRS/CDMA/GSP, also can be ADSL etc.
Beneficial effect of the present invention is: when network congestion, guaranteeing that the user can obtain representing the packet of enough information more timely, is to be relatively easy to and implement.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the Adaptive Transmission flow chart.
Embodiment
Below in conjunction with accompanying drawing the present invention is further set forth.
As shown in Figure 1, video terminal is linked on the director server of operator by Ethernet, on director server, realize a Buffer Pool of depositing video data with software, user terminal is any terminal equipment that can be connected on the server, user terminal can be realized by GPRS/CDMA/GSP with linking of server, also can be ADSL etc.Suppose that a user terminal needs a video information, it just sends a request by GPRS/CDMA/GSP or ADSL or the like to carrier server, server is received this order, request is forwarded to the video intercepting terminal, video terminal is received this order can arrive server with regard to beginning that the video flowing of intercepting is packaged into the packet biography, and server end is used for preserving these data for each video terminal is provided with a Buffer Pool, simultaneously, server is returned to user terminal to these data in buffer.Size of data in the detection Buffer Pool that the while server does not stop, after the data volume that detects Buffer Pool surpassed certain scope, this situation generally occurring was that transfer of data is slow because server is bad to the network condition of user terminal.Therefore, server sends the command request video terminal transmission speed that slows down, and takes certain drop policy that the packet in the Buffer Pool is lost simultaneously.Reduce to a certain degree Deng the capacity in the Buffer Pool, improve the transmission speed of video terminal again.Finish the transmission of bandwidth self-adaption with this.
Specifically the flow process in the transmission course is as shown in Figure 2:
(1) first step as shown in Figure 2.When the request instruction of user terminal to a request of director server transmission video, director server is resolved this instruction.
(2) second step as shown in Figure 2.After director server parses, send the instruction of reading video information to video terminal.
(3) the 3rd step as shown in Figure 2.Video terminal receives this instruction, just current screen data of catching is passed to packet in the Buffer Pool of server by Ethernet with certain speed (such as 20 frame/seconds).
(4) in a single day server receives first and returns the video data of returning, and this time, server was mainly done two things.
(4.1) network condition on judgement server both sides.
(4.1.1) judge as the left side branch of figure two, writing time, when receiving next packet, see and whether surpass certain preset threshold two time differences between the bag (to be no more than 6 times of transmission speed normal even if such as setting time-delay, promptly according to the transmission speed of front, this threshold value is 0.3s)
If (4.1.2) time difference between continuous several packet two frames surpasses 0.3s, server just judges that video terminal is bad to the network condition of this end of server so, at this time server sends one and instruct back its transmission speed that slows down of video terminal requirement, because network congestion, that sends out is how congested more serious more.Such as the each slow-down instruction of regulation speed is reduced by half.
(4.1.3) repeat (4.1.1) and (4.1.2) this two goes on foot after slowing down again.If the time before and after receiving between two frames is no more than preset threshold, video terminal is exactly normal to the network of server, so just normally sends always.
(4.1.4) judge as the right branch of figure two, server constantly detects the quantity of frame in the Buffer Pool, threshold value of same setting, such as 50 frames,, just illustrate that server is bad to the network condition of user terminal if the frame number of depositing in the Buffer Pool surpasses 50 frames, data send and do not go out, just lose 45 frames of front, keep 5 up-to-date frames and send to user terminal, it is too of a specified duration to be unlikely to the video data time-delay that the user receives.Send simultaneously and instruct back its transmission speed that slows down of video terminal requirement.Constantly repeat (4.1.4).
(4.2) as branch's aggregation step of figure two, transmit data toward user terminal.This packet arrives the mobile phone end and unpacks the extraction video data again.
Claims (6)
1. media streaming transmission bandwidth self-adapted method, it is characterized in that, in remote transmission Media Stream process, by the Buffer Pool of a media stream data bag is set on a director server, carry out adaptive transmission then according to the bandwidth conditions of the current data volume decision network of depositing in the Buffer Pool again, its key step comprises:
1) user terminal sends a request instruction of asking video by communication network to director server, and director server is resolved this instruction;
2) director server is resolved and is finished request command, sends the instruction of reading video information to video terminal by Ethernet again;
3) video terminal receives this instruction, just by Ethernet passes to packet in the Buffer Pool of server with certain speed current screen data of catching;
4) request of server response user terminal realizes transfer of data.
2. a kind of media streaming transmission bandwidth self-adapted method according to claim 1 is characterized in that described step 4) also comprises the steps:
4.1) in a single day server receive first and return the video data of returning, and just begins to judge the network condition on server both sides;
4.2) transmitting data toward user terminal, this packet arrives the mobile phone end and unpacks the extraction video data again.
3. a kind of media streaming transmission bandwidth self-adapted method according to claim 2 is characterized in that described step 4.1) also comprise the steps:
4.1.1) packet of server receiver, video terminal, and note the time, when receiving next packet, judge that whether 2 time differences between the packet are above preset threshold;
4.1.2) if surpass threshold value, server judges that then video terminal is bad to the network of server end, server then sends the slow down instruction of transmission speed of a requirement to video terminal;
4.1.3) these two steps of back repetition 4.1.1,4.1.2 that slow down, if the time difference that receives between two frames of front and back is no more than threshold value, then video terminal is normal to the network of server, so just normally sends always;
4.1.4) server constantly detects the quantity of frame in the Buffer Pool, threshold value of same setting, if the frame number of depositing in the Buffer Pool surpasses threshold value, just illustrate that server is bad to the network condition of user terminal, data send and do not go out, and just lose a part of frame of front, keep 5 up-to-date frames and send to user terminal, it is too of a specified duration to be unlikely to the video data time-delay that the user receives, and sends simultaneously instruct back video terminal to require its transmission speed that slows down, continuous repetition (4.1.4).
4. a kind of media streaming transmission bandwidth self-adapted method according to claim 1 is characterized in that described user terminal is any terminal equipment that can be connected on the server, comprises mobile phone, PC, PDA or TV or the like.
5. a kind of media streaming transmission bandwidth self-adapted method according to claim 1 is characterized in that, the communication network between described user terminal and server can be realized by GPRS/CDMA/GSP, also can be ADSL etc.
6. a kind of media streaming transmission bandwidth self-adapted method according to claim 1 is characterized in that, described server is that each user (this user can have only a video terminal, also can have a lot of) is provided with a corresponding Buffer Pool.
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| CNA2007100303466A CN101146032A (en) | 2007-09-21 | 2007-09-21 | A media streaming transmission bandwidth self-adapted method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101895743A (en) * | 2010-03-11 | 2010-11-24 | 宇龙计算机通信科技(深圳)有限公司 | Method and system for transmitting encoded and decoded data among processors, and visual telephone |
| CN102594769A (en) * | 2011-01-05 | 2012-07-18 | 深圳市闪联信息技术有限公司 | Method and system for transmitting network media data |
| CN103457910A (en) * | 2012-05-29 | 2013-12-18 | 腾讯科技（深圳）有限公司 | Method and terminal for uploading files |
| CN104093088A (en) * | 2013-12-26 | 2014-10-08 | 赛特斯信息科技股份有限公司 | System and method for achieving self-adaptive stream media play control |
| CN104159142A (en) * | 2014-08-06 | 2014-11-19 | 乐视网信息技术（北京）股份有限公司 | Video soft decoding method and device of equipment |
| CN105635163A (en) * | 2016-01-19 | 2016-06-01 | 努比亚技术有限公司 | Resource acquisition method and device |
| CN105940680A (en) * | 2013-09-11 | 2016-09-14 | 爱立信股份有限公司 | Streaming policy management system and method |
| CN106713316A (en) * | 2016-12-22 | 2017-05-24 | 西安电子科技大学 | Streaming media service transmission resource requirement obtaining method based on receiving buffer |
| CN108322775A (en) * | 2013-10-08 | 2018-07-24 | 高通股份有限公司 | Switching method and apparatus during media flow transmission between adaptation is gathered |
| CN114629894A (en) * | 2022-03-19 | 2022-06-14 | 苏州知微安全科技有限公司 | Internet of things data transmission method and device |
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- 2007-09-21 CN CNA2007100303466A patent/CN101146032A/en active Pending
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101895743A (en) * | 2010-03-11 | 2010-11-24 | 宇龙计算机通信科技(深圳)有限公司 | Method and system for transmitting encoded and decoded data among processors, and visual telephone |
| CN101895743B (en) * | 2010-03-11 | 2013-11-13 | 宇龙计算机通信科技(深圳)有限公司 | Method and system for transmitting encoded and decoded data among processors, and visual telephone |
| CN102594769A (en) * | 2011-01-05 | 2012-07-18 | 深圳市闪联信息技术有限公司 | Method and system for transmitting network media data |
| CN102594769B (en) * | 2011-01-05 | 2015-07-08 | 北京闪联云视信息技术有限公司 | Method and system for transmitting network media data |
| CN103457910A (en) * | 2012-05-29 | 2013-12-18 | 腾讯科技（深圳）有限公司 | Method and terminal for uploading files |
| CN103457910B (en) * | 2012-05-29 | 2018-12-28 | 腾讯科技（深圳）有限公司 | A kind of method and terminal of upper transmitting file |
| US10397376B2 (en) | 2013-03-18 | 2019-08-27 | Ericsson Ab | Streaming policy management system and method |
| CN105940680B (en) * | 2013-09-11 | 2020-01-17 | 爱立信股份有限公司 | Streaming policy management system and method |
| US10880408B2 (en) | 2013-09-11 | 2020-12-29 | Ericsson Ab | Streaming policy management system and method |
| CN105940680A (en) * | 2013-09-11 | 2016-09-14 | 爱立信股份有限公司 | Streaming policy management system and method |
| CN108322775B (en) * | 2013-10-08 | 2020-08-18 | 高通股份有限公司 | Method and apparatus for switching between adaptation sets during media streaming |
| CN108322775A (en) * | 2013-10-08 | 2018-07-24 | 高通股份有限公司 | Switching method and apparatus during media flow transmission between adaptation is gathered |
| CN104093088A (en) * | 2013-12-26 | 2014-10-08 | 赛特斯信息科技股份有限公司 | System and method for achieving self-adaptive stream media play control |
| CN104159142A (en) * | 2014-08-06 | 2014-11-19 | 乐视网信息技术（北京）股份有限公司 | Video soft decoding method and device of equipment |
| CN105635163B (en) * | 2016-01-19 | 2020-08-11 | 三人行传媒集团股份有限公司 | Resource acquisition method and device |
| CN105635163A (en) * | 2016-01-19 | 2016-06-01 | 努比亚技术有限公司 | Resource acquisition method and device |
| CN106713316B (en) * | 2016-12-22 | 2020-05-22 | 西安电子科技大学 | Method for acquiring streaming media service transmission resource requirement based on receiving buffer |
| CN106713316A (en) * | 2016-12-22 | 2017-05-24 | 西安电子科技大学 | Streaming media service transmission resource requirement obtaining method based on receiving buffer |
| CN114629894A (en) * | 2022-03-19 | 2022-06-14 | 苏州知微安全科技有限公司 | Internet of things data transmission method and device |
| CN114629894B (en) * | 2022-03-19 | 2024-03-19 | 敦和万物信息技术(苏州)有限公司 | Internet of things data transmission method and device for electronic data evidence collection |
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