CN101155296B - Method for transmitting data - Google Patents
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- CN101155296B CN101155296B CN2006101406906A CN200610140690A CN101155296B CN 101155296 B CN101155296 B CN 101155296B CN 2006101406906 A CN2006101406906 A CN 2006101406906A CN 200610140690 A CN200610140690 A CN 200610140690A CN 101155296 B CN101155296 B CN 101155296B
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Abstract
The present invention discloses a method for transmitting data, being used in P2P video-on-demand transmission, including the following steps: A. to divide the data of the P2P video-on-demand system into a plurality of data block; B. to encrypt each data block after dividing; C. a data receiving end downloads various data block from various nodes of the P2P video-on-demand system, and to combine the downloaded data blocks into integrated data. Wherein, to divide the data or according to required size of the data block, or according to the duration of the data block, or according to the selective dividing position and the size of the data block or duration. And to construct information object with the corresponding information of data dividing and to transmit to a media resource managementmodule, for managing data. The method is flexible and credible.
Description
Technical field
The present invention relates to a kind of computer communication technology, relate in particular to the method for transfer of data in a kind of P2P video on-demand system.
Background technology
VOD (Video On Demand video request program) is a kind of interactive multimedia business that provides on the internet, can provide single access passage for the residential and business customer, makes them can program request long-distance video program.
Traditional VOD (video request program) adopts C/S (client/server) connection mode to provide program request (comprising VOD and time-moving television) professional.Because the restriction of I/O (server I/O) " bottleneck ", a station server can only be supported limited concurrent stream (the concurrent streams of thousand orders of magnitude).Solve the problem that watch simultaneously at 100,000, hundred general-purpose families, not only need a large amount of servers, also need the extremely wide network bandwidth.Client has become " bottleneck " of restriction VOD development.
At present, solution is that architecture develops to the reciprocity connection mode of P2P (end-to-end).The P2P technology is combined into a network with many users, shares bandwidth wherein, the common information of handling wherein.Different with traditional Client, in the P2P working method, each client terminal be client computer be again server.
In the prior art, the cutting transmission of file data is generally carried out cutting according to the size of data block, and be subjected to the restriction of Device memory size, the size of file data can be restricted, and is difficult to bigger file data is cut into the data block that needs size.Carry out pinpoint situation during to movie for needs, use that to carry out the mode of cutting according to size powerless.In addition, when carrying out montage when obtaining the part that oneself needs to the film file, the mode of carrying out cutting according to the size of data block is difficult to finish.
Summary of the invention
The purpose of this invention is to provide the method for carrying out transfer of data in a kind of flexible, reliable P2P VOD (video request program) system, this method is cut into data by multiple mode needs the data block of size to transmit respectively.
The objective of the invention is to be achieved through the following technical solutions:
The method of transfer of data of the present invention is used for realizing transfer of data at the P2P video on-demand system that described P2P video on-demand system comprises a plurality of nodes, connects by the P2P equity between described a plurality of nodes, is used to realize the transmission of data, comprises step:
A, the data in the P2P video on-demand system are cut into a plurality of data blocks, each data block can transmission separately between the node of P2P video on-demand system;
B, each data block after the cutting is encrypted;
Download different data blocks respectively in C, the different node of data receiver from the P2P video on-demand system, and with the synthetic complete data of a plurality of data chunk of being downloaded.
Described steps A comprises step:
Size, position and the metadata information of the metadata of data stated in A1, true office, and described metadata information comprises the characteristic information of described data;
A2, data are carried out cutting, the mode of described cutting comprises at least a in the following mode:
The size of data block is on demand carried out cutting;
The duration of data block is on demand carried out cutting;
Carry out cutting by the cutting position of selecting.
Described steps A also comprises, with data block after the cutting and the meta data block that comprises metadata information, the temporal sequencing that exists in data according to them carries out label, and writes down the size and the duration of each data block.
Described steps A also comprises, the data cutting is finished the former data of back deletion.
Among the described step B, data block is encrypted with the md5 encryption algorithm.
Described method also comprises step:
D, the relevant information of data cutting is made up message object, be used to realize management data.
Described step D comprises step:
D1, structure message object, described message object comprises the relevant information of data cutting;
D2, the message object that builds is sent to the managing medium resource module, the managing medium resource module manages data according to the relevant information in the message object.
The message object that makes up among the step D1 comprises following information:
The size of each data block and/or duration, MD5 digest, sequence number, metadata size and position after total size of data file and/or duration, the cutting.
The message object that makes up among the step D1 comprises message number, and whether described message number comprises data by the information of correct cutting.
When carrying out step D2, the described message object of buffer memory; And when message object sends failure, resend message object.
As seen from the above technical solution provided by the invention, the method of transfer of data of the present invention, because media data is cut into less piece, make when carrying out data interaction between media termination and the server, also make swap data between the different media terminations, this will improve the throughput and the extensibility of system greatly, and also can make full use of bandwidth increases downloading rate.
Again since the cutting of data can be by the time, by size or select the mode of cutting to carry out cutting, can obtain the data block of required size or required duration or required specific part, be convenient to the transmission of file like this, make system increase many download channel, improve downloading rate, thereby guaranteed the smooth playing of film or other media file.
Be mainly used in the P2P video on-demand system and realize transfer of data, also be used for realizing transfer of data at other network.
Description of drawings
Fig. 1 is the system block diagram of P2P video on-demand system;
Fig. 2 is the main flow chart of the method for data transfer of data of the present invention.
Embodiment
The method of transfer of data of the present invention is mainly used in point-to-point P2P video on-demand system and realizes transfer of data, and the P2P video on-demand system comprises a plurality of nodes, connects by the P2P equity between a plurality of nodes, is used to realize the transmission of data.
As shown in Figure 1, the P2P video on-demand system specifically comprises metropolitan area network media system and three residence network media systems, and wherein, the residence network media system can have a plurality of, but has one at least.Provide video traffic by the front end operation service system for video on-demand system, described front end operation service system comprises MPC (medium processing center) and managing medium resource module etc.
Described metropolitan area network media system comprises:
CMS (Center Media Server center media server): be arranged in the metropolitan area P2P network of CNGI (CNGI) video on-demand system, the download service of media data is provided for the metropolitan area network node;
A plurality of MDC (Media Distribute Cache Server distribution of media buffer memory node): be arranged in the first order P2P network (metropolitan area network) of CNGI video on-demand system, the download service of media data is provided for other servers of metropolitan area network;
And a plurality of EMS (Edge Media Server edge media server): be arranged in the metropolitan area P2P network and the local P2P network of CNGI video on-demand system, provide the media data service with other server exchange data of metropolitan area P2P net and for the residence network user.
Is connected by the P2P equity between described CMS and a plurality of MDC and between each MDC and a plurality of EMS, described a plurality of MDC each other, a plurality of EMS passes through the reciprocity connection of P2P each other; Be connected by the P2P equity between described CMS and a plurality of EMS.
Described each residence network media system comprises EMS and a plurality of HMT (media termination), is connected by the P2P equity between described EMS and a plurality of HMT, and described a plurality of HMT are each other by the connection of P2P equity.
This architecture combines traditional VOD center distribution mode and P2P model, forms the complete P2PVOD service structure of mutual supplement with each other's advantages performance.
Its characteristics are that the storage and the ways of distribution of media content: CMS (center media server) stores all media datas originally, and its data are distributed to MDC (distribution of media buffer memory node) and EMS (edge media server) by the P2P mode.CMS, MDC and EMS form the first order of P2PVOD media store, be metropolitan area network P2P distribute media content and service system, EMS provides P2P program request and directory service to the HMT in the residence network, HMT provides one the road to transmit when carrying out VOD, EMS and HMT have constituted the second level that the P2PVOD medium store like this, and promptly residence network P2P media content is transmitted and service system.These medium store with the entity of distribution and not only can be connected with layer foundation equity, can also stride layer and set up the equity connection as required.
The method of transfer of data of the present invention is applied in the above-mentioned video on-demand system, media data is cut into less piece, each data block after the cutting is encrypted, then, download different data blocks respectively in the different node of terminal use from the P2P video on-demand system, and with the synthetic complete data of a plurality of data chunk of being downloaded.Make when carrying out data interaction between media termination HMT and the EMS, also make swap data between the different media termination HMT, this will improve the throughput and the extensibility of system greatly, and also can make full use of bandwidth increases downloading rate.
As shown in Figure 2, specifically may further comprise the steps:
The size of data block that can be as required, need the duration or shear to specify size or the data block of fixed time at ad-hoc location;
Message object comprises the size of each data block after the total size, cutting of data file, or information such as duration, MD5 digest, sequence number, metadata size and position.
In the above-mentioned step 21, carry out comprising when data source is confirmed size, the position of the metadata of confirming described data, and metadata information, described metadata information comprises the characteristic information of described data, mainly comprises following information:
The time scale of described data, duration, image model, data referencing index, compression ratio, stream type, object type, buffer size, Maximum Bit Rate, mean bit rate etc.
Above the said data source acknowledgement is comprised data source is confirmed or is resolved, in order to determine described data for information about, specifically carry out the method that data source confirms and be:
In video on-demand system, various standards, the unified media data that obtains the QuickTime form after the media data of various forms is handled through MPC (medium processing center), according to the QuickTime file format, utilize the data source analysis program, these film data are resolved, obtain the metadata information of media data by the mode of file operation, the size that mainly comprises metadata, the timescale of position and data (time scale), duration time (duration, Millisecond), graphics_mode (image model), data_reference_index (data referencing index), compression ratio, stream_type (stream type), object_type (object type), buffer size, max_bitrate (Maximum Bit Rate), avg_bitrate (mean bit rate) waits the details of each atom.These information merge for the media data cutting, when playing and use during decoding.
In the above-mentioned step 22 mode of data cutting is comprised at least a in the following mode:
The size of data block is on demand carried out cutting;
The duration of data block is on demand carried out cutting;
Carry out cutting by the cutting position of selecting.
Concrete slit mode is:
The file cutting procedure at first utilizes fstat () function to obtain the descriptor of file to be slit, and obtaining from descriptor with the byte is the totalsize (total size of media data) of unit.Obtaining with the byte according to data source confirmation unit branch is the metasize (size of metadata) and the metalocation (position) of unit, by file is operated, at first metadata is cut out separately according to size.
To the cutting of remaining data, be divided into by size, cut apart by time and selection cutting position three kinds of patterns according to different demands.
The pattern of carrying out cutting for the size of on demand data block, system can specify the blocksize (size of data block after the cutting arbitrarily, with the byte is unit), if metadata is in the beginning of media data or at the end like this, utilize (totalsize-metasize)/(blocksize), suppose that the merchant is n, remainder is t.Total then obtain piece number (be exactly n+1), the size of preceding n piece is blocksize, the size of (n+1) piece is t, the number of the data block after the cutting is by the size decision of total size of media data and data designated piece in this case.
For the pattern of carrying out cutting according to the time, promptly the duration of data block is on demand carried out cutting, can specify the time arbitrarily, the bit rate that obtains according to data source confirmation unit branch, obtain the size of each data block after the cutting with the two product, the principle of this pattern and cutting pattern by size is similar, need may be different with the duration of data designated piece in the duration that is pointed out that last blocks of data piece.The duration decision of the data block of the number of the data block after the cutting after by the cutting of total duration of data and appointment.
For selecting the cutting pattern, the size or the time of the position that only needs system to provide to select cutting and the data block that cuts out of appointment just can obtain correct cutting result.
For above three kinds of cutting patterns, after finishing, cutting preferably the complete data file before the cutting is deleted.
Data block after the cutting, and the meta data block that comprises metadata information are all carried out label according to the temporal sequencing that they exist in data file, write down the size and the duration of each data block simultaneously, use during in order to broadcast.
In the above-mentioned step 23, data block is encrypted with the md5 encryption algorithm.Specifically be, all data blocks that comprise meta data block that cutting partly obtains to file are all encrypted with MD5, obtain the digest (summary) of each data block and note.
Specifically may further comprise the steps in the above-mentioned step 24:
Step 231, structure message object; The message object that makes up comprises source module ID, source device ID, purpose module I D, destination device ID and essential information, and increases message number.
Step 232, the size or the information such as duration, MD5 digest, sequence number, metadata size and position of each data block after total size of media data, the cutting are added in the message object;
Step 233, the message object that builds is sent to the managing medium resource module.Simultaneously, the described message object of buffer memory; And when message object sends failure, resend message object.
The concrete method that makes up message object is, from the message queue of local machine, get message blocks, therefrom obtain message object, obtaining srcModID (source module ID), srcDevID (source device ID), dstModID (purpose module I D), dstDevID (destination device ID) (above four parameters all are for local) and message number in this message object.Judge whether this message number is to trigger the message number that starts media data cutting service, if not, to continue the formation of cancellation breath, if, then start the cutting service module, and record source module ID, source device ID, purpose module I D and destination device ID parameters such as (above four parameters all are for local).Utilize the message object class that designs in the P2P video on-demand system, at first utilize source module ID (srcModID), source device ID (srcDevID), purpose module I D (dstModID), destination device ID (dstDevID) (above four parameters all are for local) and essential information increase message number and create message object, then according to the good interface specification of predefined with agreement, version, expansion, sequence number, data source is confirmed the filename that part and file cutting part and encryption of blocks of data partly obtain, coded format, total size of data file, the size of metadata and position, the MD5 digest of the size of the data block after the cutting or duration and each data block utilizes the mode of adding clauses and subclauses to add in the message object of previous establishment.Finish the structure of message object.At last the message object that makes up is sent to the managing medium resource module, this message object of buffer memory is failed then repeating transmission if send simultaneously.
Utilize program that the present invention develops that the bigger media data of data volume is carried out by the time, by size or after selecting the mode of cutting to cut apart, obtain the little blocks of files of data volume, be convenient to the transmission of file like this, make between the user terminal of P2P system and the edge media server and carry out mutual between each user terminal.Improve the throughput and the downloading rate of system greatly, made full use of local bandwidth, overcome the bottleneck of transmission bandwidth in the C/S model, also reduced the pressure of server.
Specific embodiment, suppose that peer1, peer2, peer3, peer4 are four peers include both of P2P, be four nodes of P2P video on-demand system, peers include both peer5 (comprising EMS here) has the film that peer1 will download, and at this moment the film on the peer5 is divided into many mutually disjoint data blocks.Peer1, peer2, peer3, peer4 at random go up downloading data block from peer5, their data downloaded piece is complementary to a great extent like this, thereby, peer1 just can download its unexistent data block simultaneously on peer2, peer3, peer4 and peer5, the data block on the peer1 can be downloaded by peer2, peer3 and peer4 too simultaneously.Generally adopt the mode of " net (mesh) " rather than " tree (tree) " under this pattern in the structure link topology, feasible structure topology becomes easily and is feasible.
From top analysis as can be seen, increase many download channel in the system, made full use of local bandwidth, reduced the burden of EMS, increased the throughput of system, also increased downloading rate, thereby guaranteed the smooth playing of film.Be mainly used in the P2P video on-demand system and realize transfer of data, also be used for realizing transfer of data at other network.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.
Claims (7)
1. the method for a transfer of data is used for realizing transfer of data at the P2P video on-demand system, and described P2P video on-demand system comprises a plurality of nodes, connect by the P2P equity between described a plurality of node, be used to realize the transmission of data, it is characterized in that, comprise step:
A, the data in the P2P video on-demand system are cut into a plurality of data blocks, each data block can transmission separately between the node of P2P video on-demand system;
B, each data block after the cutting is encrypted;
Download different data blocks respectively in C, the different node of data receiver from the P2P video on-demand system, and with the synthetic complete data of a plurality of data chunk of being downloaded;
Described steps A comprises step:
Size, position and the metadata information of the metadata of A1, the described data of affirmation, described metadata information comprises the characteristic information of described data;
A2, data are carried out cutting, the mode of described cutting comprises at least a in the following mode:
The size of data block is on demand carried out cutting;
The duration of data block is on demand carried out cutting;
Carry out cutting by the cutting position of selecting;
Described method also comprises step:
D, the relevant information of data cutting is made up message object, be used to realize management data;
Described step D comprises step:
D1, structure message object, described message object comprises the relevant information of data cutting;
D2, the message object that builds is sent to the managing medium resource module, the managing medium resource module manages data according to the relevant information in the message object.
2. the method for transfer of data according to claim 1, it is characterized in that, described steps A also comprises, with data block after the cutting and the meta data block that comprises metadata information, the temporal sequencing that exists in data according to them carries out label, and writes down the size and the duration of each data block.
3. the method for transfer of data according to claim 1 and 2 is characterized in that, described steps A also comprises, the data cutting is finished the former data of back deletion.
4. the method for transfer of data according to claim 1 is characterized in that, among the described step B, data block is encrypted with the md5 encryption algorithm.
5. the method for transfer of data according to claim 1 is characterized in that, the message object that makes up among the step D1 comprises following information:
The size of each data block and/or duration, MD5 digest, sequence number, metadata size and position after total size of data file and/or duration, the cutting.
6. the method for transfer of data according to claim 1 or 5 is characterized in that the message object that makes up among the step D1 comprises message number, and whether described message number comprises data by the information of correct cutting.
7. the method for transfer of data according to claim 1 is characterized in that, when carrying out step D2, and the described message object of buffer memory; And when message object sends failure, resend message object.
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| CN2006101406906A CN101155296B (en) | 2006-09-29 | 2006-09-29 | Method for transmitting data |
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| CN2006101406906A CN101155296B (en) | 2006-09-29 | 2006-09-29 | Method for transmitting data |
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| CN101155296B true CN101155296B (en) | 2011-05-25 |
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Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101783810B (en) * | 2009-01-16 | 2013-07-10 | 财团法人工业技术研究院 | Point-to-point file transmission method and system |
| CN101651709B (en) * | 2009-09-01 | 2012-09-05 | 中国科学院声学研究所 | Method for calibrating integrity of P2P download files |
| CN102546731B (en) * | 2010-12-30 | 2015-03-11 | 中国移动通信集团公司 | Subchunk integrity checking method and system of peer-to-peer streaming media system |
| CN103488914B (en) * | 2013-09-16 | 2016-08-17 | 博隆科技有限公司 | A kind of efficient self-adapted Modular Data encryption method and system thereof |
| CN106469152A (en) * | 2015-08-14 | 2017-03-01 | 阿里巴巴集团控股有限公司 | A kind of document handling method based on ETL and system |
| CN105095793B (en) * | 2015-10-08 | 2018-03-23 | 浪潮(北京)电子信息产业有限公司 | The method and system of data encrypting and deciphering in a kind of safety chip |
| CN105392068B (en) * | 2015-11-04 | 2019-01-01 | 合一网络技术(北京)有限公司 | The parallel distribution method of the more transmission channel network direct broadcasting videos of distribution and system |
| CN105635149A (en) * | 2015-12-30 | 2016-06-01 | 深圳Tcl数字技术有限公司 | Streaming media encryption method, device and system |
| CN105677761A (en) * | 2015-12-30 | 2016-06-15 | 国网信息通信产业集团有限公司 | Data sharding method and system |
| CN106941473B (en) * | 2016-01-04 | 2020-05-19 | 中国移动通信集团公司 | Encryption method and device |
| CN106407297A (en) * | 2016-08-31 | 2017-02-15 | 成都科来软件有限公司 | Data packet downloading management system and method |
| CN106851338B (en) * | 2016-12-30 | 2019-08-30 | 中广热点云科技有限公司 | A kind of safe transmission method and system of multimedia broadcasting video |
| CN110290396B (en) * | 2019-05-31 | 2024-04-09 | 广州市百果园信息技术有限公司 | Video processing method, device, system, equipment and storage medium |
| CN110248166B (en) * | 2019-07-12 | 2021-04-20 | 东软集团股份有限公司 | Video information processing method, client, electronic device and storage medium |
| CN112118461B (en) * | 2020-09-22 | 2022-10-18 | 湖南快乐阳光互动娱乐传媒有限公司 | Audio and video file storage and distribution method and device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1472963A (en) * | 2002-07-30 | 2004-02-04 | 深圳市中兴通讯股份有限公司 | Distributive video interactive system and its data recording and accessing method |
| CN1694492A (en) * | 2005-06-23 | 2005-11-09 | 北京影立弛技术有限公司 | Device and method for network P2P technology used in information domestic electrical equipment terminal |
-
2006
- 2006-09-29 CN CN2006101406906A patent/CN101155296B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1472963A (en) * | 2002-07-30 | 2004-02-04 | 深圳市中兴通讯股份有限公司 | Distributive video interactive system and its data recording and accessing method |
| CN1694492A (en) * | 2005-06-23 | 2005-11-09 | 北京影立弛技术有限公司 | Device and method for network P2P technology used in information domestic electrical equipment terminal |
Non-Patent Citations (2)
| Title |
|---|
| 白晓飞等.基于P2P网络模式VOD系统的数据传输新方法.计算机应用与软件23 3.2006,23(3),71-72,107. |
| 白晓飞等.基于P2P网络模式VOD系统的数据传输新方法.计算机应用与软件23 3.2006,23(3),71-72,107. * |
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