CN1142660C - Flow-type broadcast video server system - Google Patents
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Abstract
The present invention relates to a server system of flow-type playing of videos, which is a complete architecture formed by combining hardware and software. The hardware of the present invention is characterized in that I/O is composed of one or more 100M or 1000M concurrent network cards; a storage subsystem is composed of an SCSI bus and an SCSI hard disc driver, wherein the SCSI bus is composed of multiple SCSI interface cards or RAID cards, the SCSI interface cards or the RAID cards are parallelly attached to a PCI bus, and the SCSI hard disc driver is attached to the SCSI bus; the selection and the configuration of a CPU, a memory, a buffer, etc. are matched with the storage subsystem. The software of the present invention is characterized in that the software is formed in a mode that ActiveX multimedia play controls are installed in management application software, and the software adopts an object-oriented program design. The video server system does not need to be externally provided with magnetic disk arrays; video files formed by compressing VCD, DVD, MPEG, MP3 and Wave can be stored in a hard disk to achieve flow-type playing without prior encoding processing; the present invention can achieve real-time replaying of real-time signal sources in a multicast mode and stores real-time programs so that the real-time programs are instantly played or requested afterwards.
Description
Technical field
The invention belongs to video server system, particularly a kind of flow-type broadcast video server system that is used for video request program (VOD, Video On Demand).
Background technology
According to literature search and social investigation, the present situation of video server and the problem of existence are as follows:
1. the hardware and software video server is in released state.At present, domestic and international existing video server generally is divided into software video server and hardware video server, and is produced by different companies usually.For example: Real Networks company, Cisco company, Oracle company are famous software video provider servers, also have the general Mader as China, company of Tsing Hua Tong Fang, and SGI company are famous hardware video provider servers.But will mixing the software video server, the hardware video server could form complete video server function, and the software video server also need be mixed the hardware video server and could be worked, so the user has only and buys the hardware and software video server from different companies respectively and make up and could use.The video server system that combines like this, because its architecture is designing from video server system on the whole not, thereby following deficiency is arranged: 1. system can not give full play to its usefulness, influences the raising of concurrent video streams, influences the raising of system effectiveness and cost performance; 2. use to go up and stay many technology unknown numbers to the user; 3. debugging needs the user to solve a series of coordination techniques in the open system; If 4. " match " causes inharmoniously, the performance index that provided not only are not provided, cause sound, video quality inferior, and can cause the consequence that falls flat.
2. the design criterion and the solution that the core technology of video server are not had science.Video server is the most basic, the technical barrier of most critical is storage and the I/O bandwidth, to this problem, at present both at home and abroad more general solution is to utilize the outer commodity disk array of joining.This method has blindness and unpredictability, not from storage and the integral system of I/O, and design with the method for hardware and software combination, therefore the number of the concurrent video flowing of single system server is carried not high, generally can only be below 50, can not form the most effective function, and increase the cost of system greatly.In addition, because the separate design and the production status of hardware and software video server can not be given full play to the effect of software aspect raising storage and I/O efficient, also increased the difficulty that this problem solves.
3. streaming is play complicated time-consuming and restricted.It is the core key issue that the VOD engineering must solve that streaming is play, it is based on video flowing and is transmitted in the technical method that work station end buffer-stored can be play blink continuously, generally be based on a kind of technical method that the support of specific operating system (as the Windows of Microsoft) is finished down, but existing both at home and abroad method, or must carry out complicated time-consuming encoding compression processing in advance to video file, or play in the stream transmission that a kind of system can only finish a certain single compression standard (as MPEG or Real) and speed, and the streaming that can not carry out multiple compression standard and rate video transmission in a system is play, as comprise VCD, DVD, Realvideo, the integrated treatment of MPEG4 etc., thus cause the trouble of VOD operation management and increase management costs greatly.
4. there is not the good realization system and method that real-time video multicast is relayed and program request combines.For live signal sources such as satellite rating, video conferencing and long-range office coachings, also there are not at present real-time multicast is relayed and program request combines good realization system and series methods, promptly relay in real time in the multicast mode on the one hand, again real time information is stored in simultaneously in the video server immediately or program request afterwards, and this all is very useful to amusement, meeting and remote teaching for the teller work station.So-called multicast, be meant that a source server can transmit single video and flow to rating on a plurality of purpose work stations or the terminating machine, it has the advantage of broadcast mode, promptly a video flowing can be for unlimited a plurality of user watched, simultaneously, save server access bandwidth and Network Transmission bandwidth again, because of it only is sent to the working end that requires rating, thereby avoided the shortcoming of broadcasting, do not taken the bandwidth that does not require rating work station branch road.
Summary of the invention
The present invention is directed to the problem that prior art exists, under supporting, utilize parallel principle, constructed the flow-type broadcast video server system that a kind of hardware and software are incorporated into one, to satisfy the needs of society and technology based on the Windows of Microsoft operating system.
Flow-type broadcast video server system provided by the invention is the integral framework structure that hardware combines with software and forms.This architecture is the product that storage subsystem and server system overall co-ordination are designed, considered selecting for use and disposing of CPU, built-in storage, buffering, scsi interface, network interface card and video card, and adopt software engineering that its comprehensive integration is as a whole, with performance system best potential and efficient, reach the quantitative design result of expection---the raising of concurrent video streams, image itself and look audio frequency synchronously, the optimization of image quality, the simplification that the full compatibility of different compression standards and transmission rate and streaming are play realizes.
Flow-type broadcast video server system provided by the invention, hardware comprise the bridge of central processor CPU, built-in storage, cpu bus, pci bus, connection CPU and pci bus, the I/O that is mounted on pci bus and storage subsystem; The innovation part is the structure of I/O and storage subsystem, I/O is made up of the single or parallel network interface card of 100M or 1000M speed, storage subsystem is articulated in the SCSI bus that a plurality of scsi interface cards on the pci bus or RAID card form and the hard disk drive that is articulated on the SCSI bus is formed by parallel, and the access bandwidth of I/O bandwidth and storage subsystem is definite by the concurrent video fluxion that video server provided that designs; The selecting for use and dispose and to be complementary with storage subsystem of CPU, built-in storage, buffering, scsi interface card or RAID card, network interface card, video card.Software incorporates the video management application software by ActiveX multimedia control and forms, the video management application software is integrated has Web Server and IIS function operations system and support programs, and CPU, built-in storage, buffering, scsi interface card or the RAID card, network interface card, the video card that make storage subsystem select for use and dispose incorporate the realization software of system, and adopt object-oriented programming.
The course of work of above-mentioned flow-type broadcast video server system: when video server system receives user's access request, software sends a display screen that has the webpage of play control to work station, the electronic program list that showing server provides supplies user's reconnaissance program, after video server system receives user's program reconnaissance signal, the video management application software video frequency program that invoke user needs from the hard disk of storage subsystem, reach the work station buffering with the streaming broadcast mode, promptly beginning the limit after the several seconds plays, the program downloading data flow is continued to temporary folder in the limit on the backstage, download finishes, the video management application software disconnects and communicating to connect, discharge the bandwidth of video server system I/O and storage and network fully, from temporary folder, fetch data and keep broadcast, and note IP Information On Demand in the daily record mode.
In order to realize the real-time relay of multicast and immediately or program request afterwards to the signal source of real-time, the technical scheme that the present invention takes is to articulate the video acquisition compressing card on pci bus, and under its driver and encoding software support, combine with the video management application software, finish its function.
Flow-type broadcast video server system provided by the invention, its hardware and software both can be loaded in the same cabinet, can be loaded in the different cabinets again, the selection principle of vanning is the quantity and the functional requirement of community users, when community users surpasses 500 families and gathers and edits functional requirement, preferably vanning respectively.The cabinet of dress storage subsystem hardware forms storage server, and the cabinet of dress video management application software forms management server, and the cabinet of dress video acquisition compressing card forms the server of gathering and editing.To especially big community or connection district, the server of gathering and editing, storage server can have a plurality of, and storage server optionally can be articulated on secondary or the three grades of telephone net nodes, forms distributed system.
Storage subsystem among the present invention, as required, its SCSI hard disk drive both can singlely be articulated on the SCSI bus, can a plurality ofly be mounted on SCSI bus side by side again, but experiment shows that the optimal number that the interface channel of each scsi interface card or RAID card articulates the SCSI hard disk drive is 3.
The present invention compared with prior art has following characteristics and beneficial effect:
1. the hardware and software video server is combined closely among an overall architecture, parallel organization I/O that it has and storage subsystem also are dissolved among the video server system, do not need the outer disk array of joining, thereby, the system integration and the technology unknown number that no longer exists in service in the VOD engineering, can give full play to the potentiality and the efficient of server system, and improve cost performance.
2. in same server system, have the comprehensive support that the streaming of the video frequency program of difference compression standard and different transmission rates is play and the support of document flow transmission, and have following new function:
(1) to the video file of VCD, DVD, MPEG, MP3, Wave compression standard, need not carry out complicated in advance time-consuming encoding process, can be stored in and realize the streaming broadcast on the hard disk, operation management, program device and modification to video server, bring great convenience, can save a large amount of manpowers and administrative expenses.
(2) to the video frequency program of encode (as ASF and Realvideo), can in same system, normally realize the streaming broadcast, simultaneously, native system also can finely support the realization of " multicast " function.
(3) operation pages of user side, transmit by server end, do not need to adorn in addition specific software, and the broadcast support programs that user side is used, also adopt the free software that need not pay fully, as the mplayer2 of Microsoft, wmplayer, the Realplayer of RealNetworks company etc., thus have save user's spending, user-friendly, do not need often advantage such as maintenance of operator yet.
3. to having the signal source of real-time, give lessons etc. as satellite rating, video conference, remote teaching, can realize the real-time relay of multicast mode and can realize simultaneously the real time programme storage, make things convenient for absent from school or do not catch up with rating time people's private tutoring for immediately or afterwards " program request ".This system and technical method also may make the CATV in sub-district or campus and network system integrate, and save system's construction cost and realize unified management.
4. have the potentiality that how concurrent video flowing is provided, can reach 400～500 concurrent video flowings.
5. remarkable in economical benefits has the video server of 100 concurrent video flowings in the left and right sides at present abroad, and its price is 300～000,000 yuans, and the video server of 100 concurrent video flowings that technical scheme provided by the invention is produced, if with external price
Sell, still can obtain fair margin of profit.
Video server is mainly used in following field:
1. video request program, promptly VOD specifically comprises long-distance education, ecommerce, intelligent residential district, tele-medicine, security roadshow etc.
2. cable television digital transformation, the gathering and editing of TV programme, play, file and links such as value-added service such as advertisement, all be unable to do without this key equipment of video server.
3. the government and the Project of Putting Enterprises on the Net are used for client and staffs training, E-Government, Remote Video Conference, video ads etc.
4. industry and military monitoring, for example bank, public security, traffic and industrial production, engineering monitoring, military surveillance etc.
Description of drawings
Fig. 1 is a kind of hardware structure diagram of flow-type broadcast video server system provided by the present invention;
Fig. 2 is another hardware structure diagram of flow-type broadcast video server system provided by the present invention, is mounted with the video acquisition compressing card on the pci bus;
Fig. 3 is a small community video on-demand system structure chart;
Fig. 4 is a large-scale community video on-demand system structure chart;
Fig. 5 is a remote teaching VOD system construction drawing.
Embodiment
Embodiment 1:
Flow-type broadcast video server system in the present embodiment is used for the small community video on-demand system, its hardware configuration as shown in Figure 1, comprise CPU, internal memory, cpu bus, pci bus, connect CPU and the bridge (Host/PCIBridge) of pci bus, the I/O that is mounted on pci bus and storage subsystem.This video server can provide the concurrent video flowing of 100 VCD compression standards, so the access bandwidth of I/O bandwidth and storage subsystem needs 17.2MB/s, if be 64KB by connecting the each data block of the calling size of machine access, when storage subsystem and server system overall co-ordination are designed, selecting for use and dispose as follows about hardware: CPU is PIII733, memory size is 256MS, I/O is made up of two two single or parallel 100M network interface cards, storage subsystem adopts a scsi interface card to articulate the scheme of three 10000 rev/mins SCSI hard disk drive, buffering and the needs that at every turn call the setting of data block size, all relevant with being provided with of internal storage capacity, according to experiment and application experience, the book server memory setting is 256MB, and concrete buffering and data block size then should in use specifically be determined according to the broadband networks system situation that connects.Video card selects for use quality better and be buffered in the above video card of 32MB.Software incorporates the video management application software by ActiveX multimedia control and forms, the video management application software is integrated has Web Server and IIS function operations system and support programs, and the CPU, internal memory, buffering, scsi interface card, network interface card, the video card that make storage subsystem select for use and dispose incorporate the realization software of system, and adopt object-oriented programming.Hardware and software are loaded on same cabinet and form video server, and its mounting means in the video request program engineering system as shown in Figure 3.
The course of work of this video server system is as follows:
The user is in work station microcomputer PC (or set-top box, as follows) request is sent in the IP address of input server on the screen IE browser interface, transmit the network interface card that reaches video server by network, give Web server again, behind Authority Verification, send into server management software, management software sends a display screen that has the webpage of play control to work station, the electronic program list that showing server provides supplies user's reconnaissance program, its information is passed video server again back, the video management application software video frequency program that invoke user needs from the hard disk of storage subsystem, reach the work station buffering in " streaming broadcast " mode, promptly beginning the limit after the several seconds plays, the program downloading data flow is continued on the limit on the backstage, downloaded in the temporary folder as the work station end, then the video management application software disconnects " communicating to connect ", discharges the bandwidth of server I/O and storage and network fully, and at this moment the work station end continues to fetch data broadcast from temporary folder.Simultaneously, the video management application software is noted program request for information about in the daily record mode, as application program request workstation address, constantly, is put program names etc., for usefulness such as charging or management controls.
Embodiment 2:
Flow-type broadcast video server system in the present embodiment is used for large-scale community video on-demand system.This video server system difference from Example 1 is: 1. increased the video acquisition compressing card that is mounted on pci bus in the hardware, its hardware configuration as shown in Figure 2.2. the video acquisition compressing card is loaded on a cabinet and forms the server of gathering and editing, and I/O, storage subsystem are loaded on a cabinet and form storage server, and the video management application software is loaded on a cabinet and forms management server, as shown in Figure 4.
The design of the video on-demand system that the foregoing description 1 and embodiment 2 are related should also be noted that following problem:
1. the community broad band net topology adopts 100M Fiber-To-The-Building space, 10M twisted-pair feeder house lead in.The community center of heavy construction system and two, three grades of nodes are connected with each node layer switch with 1000M optical fiber.
2. be connected with metropolitan area network or broadband arterial grid node, can adopt 100M or 1000M optical fiber, with the bandwidth of increasing export, as being connected of community and extraneous Internet.
3. the design system provides the multicast functionality in the community, the community broad band first stage of construction is lacked of capital or registers under the few situation of Internet user, the server of less concurrent video flowing can be set, but by combining of program request and multicast functionality, can satisfy to build and discuss the promise that all resident families is provided Video service, this is characteristics of this video server and VOD system design.To not needing the small community of multicast, core switch also can change Layer 2 switch into, to save construction investment.
4. the broadcasting and television network that need adopt HFC as part community is as Access Network, can be connected with core switch by headend CMTS to pick out.The post and telecommunications local loop ADSL of dispersion user is inserted, also can take similar measure to connect, but but three types of networks programme content of providing of this flow-type broadcast video server system of shared community center all.
5. teller work station PC, the TV output by video card is connected with television set, also can adopt cable modem or set-top box connection television set separately.
6. video server Si gathers and edits, satellite rating, community's video conference and Web-based instruction collection, the multicast formula of live signal such as give lessons that can be used as relayed, and can be sent among the store video server S i storage simultaneously for immediately or program request afterwards, at this moment, should link video acquisition compressing card and corresponding software and form system, the Si that gathers and edits can be used as non-linear editing when flat and the program compressed encoding uses.If need a plurality of real time programmes, can increase the video server Si that gathers and edits (be i=1,2 ..., n).
Embodiment 3:
Flow-type broadcast video server system in the present embodiment is used for remote teaching VCD system, and as shown in Figure 5, the structure of this video server system and embodiment 2 are identical, and mini-system also can adopt the video server structure of embodiment 1.
About remote teaching VCD system, the spy makes the following instructions:
1. the classroom work station can connect large screen projector, and this work station also can expand to local area network (LAN), connects a lot of platform student works station, as is used for multi-media classroom of foreign language teaching etc.
2. the long-range node of imparting knowledge to students outside school can be via satellite, also can realize that information interaction gets in touch by the key broadband networks of country or metropolitan area network and Web education technique center system.
3. remote teaching node outside school can be concentrated in the classroom on class, also can be by connecting with campus network or by community's Access Network, and at this moment the student can disperse or listen to the teacher at home.
4. remote teaching node video server outside school, it is a miniature video management server of remote teaching point outside school, it also is the mirrored storage video server system of a remote teaching outside school, listen to the teacher as review, just can be on mirror image server the courseware of program request storage, this had both saved Web-based instruction prostheses server and backbone network bandwidth, can obtain the good image view reception effect of higher speed again.
5. other explanations are referring to the video on-demand system explanation of aforementioned community.
The invention is not restricted to the foregoing description, the video server of how concurrent video flowing also can be provided according to user's needs.
Claims (9)
1. a flow-type broadcast video server system is characterized in that this video server system is the integral framework structure that hardware combines with software and forms,
1. hardware comprises central processor CPU, built-in storage, cpu bus, pci bus, the bridge that connects CPU and pci bus, be mounted on the I/O and the storage subsystem of pci bus, I/O is made up of single or parallel a plurality of network interface cards of 100M or 1000M, storage subsystem is articulated in the SCSI bus that a plurality of scsi interface cards on the pci bus or RAID card form and the SCSI hard disk drive that is articulated on the SCSI bus is formed by parallel, the access bandwidth of I/O bandwidth and storage subsystem is determined by the concurrent video fluxion that video server provided of design, CPU, built-in storage, buffering, scsi interface card or RAID card, network interface card, selecting for use and disposing of video card should be complementary with storage subsystem
2. software incorporates the video management application software by ActiveX multimedia control and forms, the video management application software is integrated has WebServer and IIS function operations system and support programs, and CPU, built-in storage, buffering, scsi interface card or the RAID card, network interface card, the video card that make storage subsystem select for use and dispose incorporate the realization software of system, adopt object-oriented programming
When 3. video server system receives user's access request, software sends a display screen that has the webpage of play control to work station, the electronic program list that showing server provides supplies user's reconnaissance program, after video server system receives user's program reconnaissance signal, the video management application software video frequency program that invoke user needs from the hard disk of storage subsystem, reach the work station buffering with the streaming broadcast mode, promptly beginning the limit after the several seconds plays, the program downloading data flow is continued to temporary folder in the limit on the backstage, download finishes, the video management application software disconnects and communicating to connect, discharge the bandwidth of video server system I/O and storage and network fully, from temporary folder, fetch data and keep broadcast, and note IP Information On Demand in the daily record mode.
2. flow-type broadcast video server system according to claim 1 is characterized in that being mounted with on the pci bus the real-time relay that can realize multicast to the signal source of real-time and live signal is stored simultaneously for the video acquisition compressing card of program request immediately or afterwards.
3. flow-type broadcast video server system according to claim 1 is characterized in that hardware and software is loaded in the same cabinet.
4. flow-type broadcast video server system according to claim 1 is characterized in that hardware and software is loaded on different cabinets respectively and forms storage server and management server.
5. flow-type broadcast video server system according to claim 2 is characterized in that video acquisition compressing card, hardware and software are loaded on different cabinets respectively and form gather and edit server, storage server and management server.
6. flow-type broadcast video server system according to claim 5, the server that it is characterized in that gathering and editing, storage server can be a plurality of, and storage server optionally can be articulated on secondary or the three grades of telephone net nodes, forms distributed system.
7. according to claim 1 or 2 or 3 or 4 or 5 or 6 described flow-type broadcast video server systems, it is characterized in that the single or multiple parallel SCSI bus that are mounted on of SCSI hard disk drive.
8. according to claim 1 or 2 or 3 or 4 or 5 or 6 described flow-type broadcast video server systems, the optimal number that the interface channel that it is characterized in that single scsi interface card or RAID card articulates the SCSI hard disk drive is 3.
9. flow-type broadcast video server system according to claim 7, the optimal number that the interface channel that it is characterized in that single scsi interface card or RAID card articulates hard disk drive is 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011290382A CN1142660C (en) | 2001-11-06 | 2001-11-06 | Flow-type broadcast video server system |
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| CNB011290382A CN1142660C (en) | 2001-11-06 | 2001-11-06 | Flow-type broadcast video server system |
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| CN1345146A CN1345146A (en) | 2002-04-17 |
| CN1142660C true CN1142660C (en) | 2004-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB011290382A Expired - Fee Related CN1142660C (en) | 2001-11-06 | 2001-11-06 | Flow-type broadcast video server system |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100372288C (en) * | 2004-01-05 | 2008-02-27 | 明基电通股份有限公司 | Method for on-line selective playing multimedia document |
| CN100370822C (en) * | 2004-09-16 | 2008-02-20 | 北京恒通视讯科技发展有限公司 | Medium server and method for realizing its route |
| CN100459700C (en) * | 2004-11-16 | 2009-02-04 | 南京大学 | Method for realizing video requesting system based on protocol buffer storage |
| CN1964345B (en) * | 2006-09-25 | 2010-06-30 | 杭州华三通信技术有限公司 | A method to process multicast stream and network equipment |
| US7924456B1 (en) * | 2007-01-12 | 2011-04-12 | Broadbus Technologies, Inc. | Data distribution and buffering |
| CN101917281B (en) * | 2010-06-10 | 2013-02-13 | 福建升腾资讯有限公司 | Automatic collocation method for network cards |
| CN102541473A (en) * | 2011-12-31 | 2012-07-04 | 曙光信息产业股份有限公司 | Method for setting storage equipment of blade server and blade server by utilizing method |
| CN107861964A (en) * | 2017-03-23 | 2018-03-30 | 平安科技（深圳）有限公司 | Image loading method and device |
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