CN101409823B - Method, apparatus and system for implementing network personal video recorder - Google Patents
Method, apparatus and system for implementing network personal video recorder Download PDFInfo
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Abstract
The invention discloses a realizing method for a network personal video recorder (NPVR) service; a user recording content describing block, a media content slice and a corresponding relation between the user recording content describing block and the media content slice are built at a network side; the method comprises the following steps: receiving the service requirement on the recording content of the user which comprises a user recording content mark corresponding to the service, obtaining the corresponding user recording content describing block according to the user recording content mark and inquiring the corresponding relation according to the user recording content describing block and utilizing the media content slice to process the service of the corresponding user recording content. The invention also discloses a device and a system used for realizing NPVR. The scheme can greatly save the memory space needed by the NPVR service and improve the operating factor of the system memory of the NPVR service.
Description
Technical field
The present invention relates to Internet technical field, particularly a kind of network personal video recorder (Network Personal Video Recorder, implementation method NPVR), device and system.
Background technology
NPVR is a business in internet television (IPTV) system; This business is by personal video record (Personal Video Recorder; PVR) development and come; Mainly be that the live telecast program in the IPTV system (along with carrying out of business, also being not limited only to programme televised live) is recorded.In the PVR business, the user carries out recording of programme televised live and need accomplish at terminal equipment, and network does not provide support.Though PVR is professional very simple in realization; And because the terminal equipment that the user can purchase different memory sizes according to self ability and demand; On content stores, also has stronger extensibility; But can increase the acquisition cost of user terminal after all, also be unfavorable for doing simultaneously further storage administration optimization.And the NPVR business is appreciated that the PVR that is based on server is professional, and user's mutual through with server carried out performance recording on server, then with the program storage that records in the memory device on backstage; When the user need appreciate program, can (Video on Demand, mode VoD) be carried out program request and is watched through video request program.
Though the NPVR business has solved the deficiency that PVR exists, and causes a large amount of user's recorded contents to be stored on the system server; And these contents have stronger similitude; That is to say that there is the part of repetition in the content that a plurality of users record, to this situation; We hope to find a kind of effective and efficient manner to come the content of sharing users storage, improve the utilance of storage resources.
The key that NVPR realizes is these three parts of performance recording, content stores and video playback, and each company can be different on concrete implementation method according to the situation of self.But generally; Present NPVR business is to rely on time-moving television (TsTV) and video request program to realize: through reusing the programme televised live recording function in the time-moving television; In the time-moving television program recording; According to the period of customization, content corresponding is copied in the memory space of user applies; When the user need watch, play through the flow process of video request program.
NPVR of the prior art system is as shown in Figure 1, comprises service operation support subsystem (BOSS) 101, middleware 102, terminal equipment 103, NPVR server 104, live source 105 and memory device 106.The NPVR operation flow roughly comprises the steps:
Step 1: the user sends to middleware 102 through BOSS system 101 and opens the professional request of NPVR, comprising: the maximum holding time that maximum network space that the highest channel number that application is recorded, application are recorded and application are recorded; The user also can apply for cancelling the NPVR business.
Step 2: middleware 102 is after receiving the order of opening (or cancellation) NPVR business; Initiate to create the instruction in (or deletion) individual subscriber space to NPVR server 104, the NPVR server is created (or deletion) individual subscriber space according to user's application in memory device 106.If deletion individual subscriber space, then middleware 102 sends the request of the professional deletion of NPVR to BOSS system 101, and finishes this flow process.
Step 3: it is professional that the user requires to start NPVR through terminal equipment 103; Whether middleware 102 has applied for that according to the user this business gives corresponding prompt; If application should business then pointed out the user not record authority, can also further provide the prompting that whether need apply for that NPVR is professional; If the time period of having applied for this business then having pointed out input to record, this time period is current or the time period in the future; Perhaps the user can carry out the maintenance work in individual NPVR space through electronic program guides (EPG), comprising:
Record record/browse recorded content/program request recorded content/deletion recorded content is recorded in inquiry;
The space of the individual NPVR of user inquiring oneself.
But said terminal equipment is generally the television set that has STB, portable terminal or other terminal of PC displaying video content.
Step 4: middleware 102 is handed down to NPVR server 104 according to user's instruction with record command, will be saved in the individual subscriber space of memory device 106 from the programme content Media Stream of live source 105 by NPVR server 104.
In the existing NPVR realization technology; Do not make full use of a behavioural characteristic of terminal use's program recording; Be that the user exists the higher probability of recording to the hot broadcast program in the live source; So just possibly cause the same program repeated storage, therefore can cause following problem: can greatly consume the memory space of server, can not effectively improve the memory by using rate of server.
Summary of the invention
In view of this, the embodiment of the invention proposes the implementation method of a kind of NPVR, can improve the professional memory by using rate of NPVR.This method comprises: open the professional request of NPVR at network side according to the user, create the logical memory space corresponding to this user, in said user's logical memory space, set up user's recorded content description block according to recording request; Set up the corresponding relation between media content section and said user's recorded content description block and the media content section, and comprise the steps:
Receive the service request of user's recorded content; Described request comprises professional corresponding user's recorded content sign; Obtain corresponding user's recorded content description block according to said user's recorded content sign; Inquire about said corresponding relation according to said user's recorded content description block and obtain corresponding media content section, utilize the business of the corresponding user's recorded content of said media content slicing treatment.
The embodiment of the invention also proposes a kind of NPVR server, comprising:
The section module is used for source of media is carried out slicing treatment, obtains the media content section, and said media content section is sent to storage subsystem;
Storage subsystem is used to store the section of user's recorded content description block and media content, sets up and store the corresponding relation between the section of said user's recorded content description block and media content; Said user's recorded content description block is created the logical memory space corresponding to this user for open the professional request of NPVR according to the user, user's recorded content description block of in said user's logical memory space, setting up according to recording request;
Media content obtains subsystem, is used for according to the playing request from the user, obtains corresponding user's recorded content description block in the said storage subsystem; Inquire about the corresponding relation in the said storage subsystem according to said user's recorded content description block, the media content section of the correspondence that obtains in the storage subsystem being stored, and send said media content section.
The embodiment of the invention also proposes a kind of realization system of network personal video recorder, comprising:
Medium source equipment is used to provide source of media;
The network personal video recorder server; Be used for according to the professional request of network personal video recorder NPVR of opening from subscriber terminal equipment; Establishment is corresponding to this user's logical memory space; In said user's logical memory space, set up user's recorded content description block according to recording request; And obtain the media content section after cutting into slices according to the source of media that said recording request provides said medium source equipment, and store said media content section, set up the corresponding relation between the section of said user's recorded content description block and media content; According to query requests, be sent to said Play Server with self storing the section of respective media content from Play Server;
Play Server; Be used for according to playing request from subscriber terminal equipment; Inquire about corresponding user's recorded content description block in the said network personal video recorder server; Obtain corresponding media content section according to said user's recorded content description block requester network personal video recorder server, and play said media content section.
Can find out from above technical scheme; Through source of media is carried out slicing treatment; Make a plurality of users can share identical media content section; And make separating of user storage space and actual physical storage space, and can greatly save the professional required memory space of NPVR, improve the utilance of NPVR operation system storage.
Description of drawings
Fig. 1 is the network personal video recorder system schematic of prior art;
Fig. 2 realizes the principle schematic that logical memory space is separated with amount of physical memory for the present invention;
The internal structure block diagram of the network personal video recorder server that Fig. 3 provides for the embodiment of the invention;
NPVR server inner working flow chart when the user that Fig. 4 provides for the embodiment of the invention opens the network personal video recorder business;
The user that Fig. 5 provides for the embodiment of the invention sets the also process chart of program recording;
The user that Fig. 6 provides for the embodiment of the invention plays the process chart of recorded content;
The process chart that Fig. 7 provides for the embodiment of the invention according to user instruction deletion recorded content.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, the present invention is done further to set forth in detail below in conjunction with accompanying drawing.
The embodiment of the invention adopts the content microtomy, through the logical memory space and the amount of physical memory of separate users, improves the memory by using rate of system, and its principle is as shown in Figure 2:
Storage is divided into two spaces, and one is the user logic memory space, and one is the actual physical memory space.The user logic memory space is not really stored recorded content; And the descriptor of only preserving recorded content; Comprise the zero-time, duration, termination time equal time information of size, this recorded content of programme content sign, shared amount of physical memory etc., and the operating position of the current amount of physical memory of user; And the true programme content that amount of physical memory storage user records.
After the division of having carried out memory space, need cut into slices to the content that the user records, its implication is divided into some unit with user's recorded content exactly.Here, the size that we set each section is T, and T can represent the time span of cutting into slices, and also can be expressed as the byte length of section, below selects fixedly duration to explain as the criteria for classifying of cutting into slices.In addition; From the consideration of section alignment, that is to say that from the beginning all sections must arrange according to regular time at interval uniformly, time scale that also need a standard; More common ground; The system time that can select programme televised live also can be selected standard At All Other Times certainly as criterion, and the present invention does not limit this.When customization after the period of desirable recording, system need cut into slices to recorded content according to system time and slice size T.Because the recording time terminal of each customization can't the strict alignment time, will produce fragment like this, this fragment is closely-related with the customization behavior, is referred to as privately owned section; And, be referred to as to share section for the section of cutting apart by the standard duration.Privately owned section and shared section all can be by records at user logic memory space and amount of physical memory, and just the user logic memory space only has the identification information of section, and amount of physical memory have the True Data of section.Set up mapping relations between the identification information of section and the section, promptly specific section identification information correspondence which or which section.
Through to the division of memory space and the section of user's recorded content, can obtain the mapping relations and the mapping object of memory space, promptly the user logic memory space is to the mapping of amount of physical memory, and mapping object is the content section.Need to make up a cover reasonable mechanism and manage this mapping relations.For example shown in Fig. 2; The performance recording content of the performance recording content description information representative of actual storage in the logical memory space of user A; The section i that is mapped in the amount of physical memory arrives section n; The performance recording content of the descriptor representative of the performance recording content of the actual storage in the logical memory space of user B, the section j that is mapped in the amount of physical memory arrives section m.
According to the said system principle, the NPVR server system that the embodiment of the invention proposes is as shown in Figure 3, comprises User Manager 310, section module 320, Storage Mapping manager 330, memory module 340 and user storage space 350.This NPVR server system is integrated in the physical equipment, also can be made up of a plurality of autonomous devices.In addition, for guaranteeing the content normal play, the Play Server that also need provide a cover to be used for the section of playing media content, this Play Server can be normally mutual with the NPVR server that the present invention proposes.
User Manager 310 is responsible for receiving and the video recording customization of process user is asked, simultaneously the logical memory space of leading subscriber.User Manager 310 comprises three modules:
User's customized module 311 of recording a video; Be used to receive user's customization request; Carry the descriptor that the user wants the recorded program content in the said customization request, comprise programme content sign and temporal information at least, said temporal information comprises program zero-time and termination time; User's customized module 311 of recording a video is given user's comprehensive module 312 of recording a video on the one hand with said descriptor and is added up; Give user storage administration module 313 is created this recorded program content for the user description block on the other hand; This description block is actually a data structure, is used for the descriptor of recording user institute program recording and the identification information of corresponding section;
User's comprehensive module 312 of recording a video is used for the programme content descriptor according to user's customization request, and the time period of recorded program content is added up, and obtains privately owned period and shared period.Specific as follows: as, at first to want the privately owned period (corresponding privately owned section) of recorded program content to separate each user according to the system time of playing programs; The period that the recorded content that then different user is customized overlaps each other is combined into a sharing the period (corresponding sharing cut into slices), and the section instruction that will comprise said privately owned period and shared period at last sends to section module 320;
User storage administration module 313 is used for the description block of maintenance customer's recorded content, in customization after the recording request, this module need be created the description block of corresponding contents for the user; After the deletion request of receiving the user, then this module is deleted corresponding user's recorded content description block.And according to user's playing request; Obtain media content description block corresponding in the said user storage space 350; Obtain the section distributed intelligence that corresponding media content is cut into slices in the said section storage distribution table 332 according to said media content description block, obtain the media content section in the said memory module 340 according to said section distributed intelligence.
Section module 320 is responsible for source of media is cut into slices, and the source of media here can be a live source, also can be the time shift program of in time shifted TV business, storing.The section module is after receiving the section instruction that User Manager 310 sends; Privately owned period and shared period according to appointment in the instruction cut into slices; When accomplishing section, section module 320 also needs to be responsible for the media content section is distributed on the different storage devices according to strategy.Section module 320 comprises like lower module:
Medium sections unit 321 is used for according to the section instruction from User Manager 310, source of media is cut into slices according to wherein privately owned period and shared period;
Section Dispatching Unit 322 is used for said media content section according to strategy distribution to memory module 340.
Storage Mapping manager 330 comprises user storage reference list 331, section storage distribution table 332 and storage administration and map maintenance module 333.Section storage distribution table 332 is used for the physical distribution information of storing media content section in memory module 340; User storage reference list 331 is used for storing the reference information of user storage space 350 each content description pieces to the media content section.
333 of storage administration and map maintenance modules are used for the user storage reference list 331 and the content of section storage distribution table are carried out management maintenance.When the media content section is dispensed on the memory device in the corresponding memory module 340; Memory device need report slice information to Storage Mapping manager 340; The identification information that comprises section, the node identification information of period information and section place memory device etc.; Storage administration and map maintenance module 333 are stored these information stores in the distribution table 332 in section; Then; According to the corresponding true media content section of the description block Information Selection of media content in the user storage space 350; The identification information that storage administration and map maintenance module 333 will be cut into slices writes the media content description block of 350 li of user storage space, has shown that in fact just the media content description block in the user storage space quoted real physics section sign; Storage administration and map maintenance module 333 also need be written to this adduction relationship in the user storage reference list 331.Storage administration and map maintenance module 333 can further include judging unit; Whether the number of times of quoting that is used for judging the media content section of said user storage reference list 331 is zero, if then send the indication of the said media content section of deletion to said memory module 340.
Memory module 340 is used to store real media content section, perhaps according to delete corresponding media content section from the indication of Storage Mapping manager 330; Also need report the storage distributed intelligence of the medium section of being stored to Storage Mapping manager 330.This reports can be regularly to report, and also can be to report when receiving the media content section.Memory module 340 can be made up of a plurality of memory devices, and each memory device is as a memory node.
User storage space 350 is corresponding with each user; In order to the current operating position of applying for memory space of expression user; The description block of while maintenance customer's program recording; A main function of description block is exactly the pairing media content section of a recording user institute program recording sign, and these media content sections are identified the reference information of the media content section of representatives.
The Play Server that the embodiment of the invention proposes comprises:
Enquiry module; Be used for according to playing request from subscriber terminal equipment; Corresponding user's recorded content description block in the requester network personal video recorder server is inquired about said network personal video recorder server according to said user's recorded content description block and is obtained corresponding media content section;
Playing module is used to play the resulting media content section of said enquiry module.
The NPVR business mainly comprises four processes, is respectively that the user opens NPVR business, user's setting and program recording, the user selects broadcast program and user to delete program recording.Following according to NPVR server system shown in Figure 3, through specific embodiment the professional function situation of NPVR is described in detail.
The user opens in the professional flow process of NPVR; The reciprocal process of user and backstage BOSS system can be with reference to prior art; The service fulfillment request of supposing the user is processed; Middleware sends the instruction of creating memory space and gives NPVR server as shown in Figure 3, and the function situation of the NPVR server inside of the embodiment of the invention is as shown in Figure 4, comprises the steps:
Step 401: the user opens the NPVR business through the BOSS system, and when activating the service, the BOSS system can send the request of creating user storage space and give User Manager 310;
Step 402: after User Manager 310 is received the establishment request of user storage space, in user storage space 350, create logical memory space corresponding to this user according to the parameter (like storage size, ID) that the user activates the service;
Step 403: user storage space 350 is returned the establishment success message to User Manager 310.
The user sets and the process of program recording mainly comprises: set and carry out the performance recording task; Set up the mapping relations of the media content section in the amount of physical memory of user logic memory space and memory module 340 of 350 li of user storage space.The user's setting that the embodiment of the invention provides and the handling process of program recording are as shown in Figure 5, comprise the steps:
Step 501: the user sends the performance recording request, and this asks normally that the user sends through terminal equipment, hands to the User Manager 310 in the NPVR server by middleware.
Step 502: User Manager 310 is analyzed said user's recording request after receiving user's recording request, therefrom extracts the recorded content descriptor such as channel, period, programme content description that the user hopes program recording.
Step 503: User Manager 310 is stored in this description block in the user storage space 350 according to the description block of the said recorded content descriptor establishment user recorded content that extracts.
Step 504～step 505: user storage space 350 notice Storage Mapping managers 330 have been built up the description block of user's recorded content, and return user's recorded content description block to User Manager 310 and create successful notification message.
Step 506: User Manager 310 carries out comprehensive statistics to each user's request, with all users' recording request merging, isolates user's privately owned period and the shared period according to system's program standard time.
Step 507 to step 508: User Manager 310 notice section modules 320 are carried out according to privately owned period and shared period source of media are cut into slices; Section module 320 is according to said privately owned period and shared period; Carry out the operation of section; Be about to source of media and be divided into and said privately owned period and corresponding media content segments of shared period, obtain the privately owned section of media content and share section.
Step 509: section module 320 relevant information (sign of cutting into slices, channel, period etc.) of will cut into slices and cut into slices is distributed on the memory device of memory module 340.
Step 510: memory module 340 reports Storage Mapping manager 330 with the relevant information of section after receiving the section that branch sends.This section relevant information not only comprises aforesaid section sign, channel, period, also comprises the distributed intelligence of section, like the node number of memory device.
Step 511: Storage Mapping manager 330 upgrades the distributed intelligence of the media content section in the section distribution table 332 according to the slice information that receives, as increases the distributed intelligence of newly-increased media content section; And the reference information of upgrading respective media content section in the user storage reference list 331; Memory contents description block to media content section and each user matees simultaneously, comprises newly-increased section sign is write corresponding user's recorded content description block, perhaps upgrades the number of times that is cited of the relevant section in user's recorded content description block.So far, set up the logical storage and the physical store mapping relations of recorded content.
It is as shown in Figure 6 that the user that the embodiment of the invention provides plays the handling process of recorded content, comprises the steps:
Step 601: the user selectes own recorded program, and sends playing request and give Play Server.
Step 602: Play Server is asked for the description block information of user's recorded content to User Manager 310 after receiving user's playing request.
Step 603～step 604: the content description block message is inquired about and obtained to User Manager in user storage space 350.
Step 605: User Manager 310 returns to Play Server with the description block information of being obtained.
Step 606～step 607: Play Server is inquired about the distributed intelligence of cutting into slices according to the section identification information in the description block information in Storage Mapping manager 330; Storage Mapping manager 330 returns the section distributed intelligence that inquires to Play Server according to section sign inquiry section storage distribution table 332.
Step 608～step 609: Play Server is according to the distributed intelligence of section, and the memory device in memory module 340 obtains corresponding media content section, and memory module 340 is handled the request of Play Server, returns the media content section.
Step 610: Play Server sends to the user with said section content packaging.
The handling process according to user instruction deletion recorded content that the embodiment of the invention provides is as shown in Figure 7, comprises the steps:
Step 701: the user deletes the operation of a certain recorded content on terminal equipment, and terminal equipment is sent to User Manager 310 with this deletion action instruction.
Step 702: User Manager 310 sends the indication of deletion specific user recorded content description block according to the deletion action instruction of being received to user storage space 350.
Step 703: user storage space 350 will soon be deleted the information of said user's recorded content description block and notified to Storage Mapping manager 330, comprise the section sign that this user's recorded content description block is quoted in the said announcement information.
Step 704: Storage Mapping manager 330 at first obtains the section identification information that comprises in the description block after obtaining notification message, reduces the number of references of respective slice in the section reference list then.
Step 705: storage administration in the Storage Mapping manager 330 and map maintenance module 333 judge whether the number of references of said section is zero, if then notify the memory module deletion these sections; Otherwise, jump to execution in step 709.
Step 706～step 707: after memory module 340 is received delete instruction, delete the section of appointment, and return the deletion success message to Storage Mapping manager 330.
Step 708: after Storage Mapping manager 330 is received said deletion success message, upgrade the distributed intelligence table of section.
Step 709: the operation of Storage Mapping manager 330 notice user storage space 350 background process is accomplished, and can carry out user's recorded content description block deletion action.
Step 710: the said user's recorded content description block of user storage space 350 deletions.
Step 711: user storage space 350 is returned the deletion success message to User Manager 310, and User Manager 310 can also be sent to terminal equipment with this deletion success message and be shown to the user.
The scheme of the above embodiment of the invention is used microtomy and section alignment techniques in the NPVR business, to the different start-stop recording times of different user, proposed the privately owned section of user and shared the scheme of cutting into slices; Adopt the section multiplex technique, through setting the method for section number of references, the same section that a plurality of users need be stored is multiplexed into one; Adopt virtual memory technique, make separating of user storage space and actual physical storage space.The present invention program can greatly save the professional required memory space of NPVR, improves the utilance of NPVR operation system storage.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. network personal video recorder NPVR business realization method; It is characterized in that; Open the professional request of NPVR at network side according to the user, create logical memory space, in said user's logical memory space, set up user's recorded content description block according to recording request corresponding to this user; Set up the corresponding relation between media content section and said user's recorded content description block and the media content section, this method comprises the steps:
Receive the service request of user's recorded content; Described request comprises professional corresponding user's recorded content sign; Obtain corresponding user's recorded content description block according to said user's recorded content sign; Inquire about said corresponding relation according to said user's recorded content description block and obtain corresponding media content section, utilize the business of the corresponding user's recorded content of said media content slicing treatment.
2. method according to claim 1 is characterized in that, saidly sets up media content section and comprises:
Obtain the media content section after according to said recording request source of media being cut into slices.
3. method according to claim 2 is characterized in that, saidly sets up user's recorded content description block according to recording request and comprises:
Receive recording request; Hope the recorded content descriptor of program recording according to the user who comprises in the said recording request; Create user's recorded content description block; The pairing media content section of said user's recorded content description block recording user institute's recorded program identifies, to the descriptor of said media content section sign and the reference information that the media content of said media content section sign representative is cut into slices.
4. method according to claim 2 is characterized in that, saidly obtains the media content section after according to said recording request source of media being cut into slices and comprises:
The recorded program time period that requires in each user request is carried out comprehensive statistics; In the requirement recorded program time period; The time interval of cutting apart according to the standard time cut-point is as sharing the period, and the time interval that terminal and standard time cut-point are not overlapped is as the privately owned period;
Source of media is divided into and said privately owned period and corresponding media content segments of shared period, obtains the privately owned section of media content and share section.
5. method according to claim 1 is characterized in that, the said corresponding relation of setting up between said user's recorded content description block and the media content section comprises:
Upgrade the section distribution table of the distributed intelligence that is used for the record media content section and be used for the user storage reference list of quoting number of times of storing media content description block according to slice information the media content section of section sign representative; And the section that will increase newly sign writes corresponding user's recorded content description block, perhaps upgrade relevant section sign in user's recorded content description block corresponding quote number of times.
6. method according to claim 5 is characterized in that, saidly inquires about said corresponding relation according to said user's recorded content description block and obtains corresponding media content section and comprise:
Inquire about the section distributed intelligence in the said section storage distribution table according to the section identification information in user's recorded content description block;
Obtain the media content section according to said section distributed intelligence.
7. a network personal video recorder server is characterized in that, comprising:
The section module is used for source of media is carried out slicing treatment, obtains the media content section, and said media content section is sent to storage subsystem;
Storage subsystem is used to store the section of user's recorded content description block and media content, sets up and store the corresponding relation between the section of said user's recorded content description block and media content; Said user's recorded content description block is created the logical memory space corresponding to this user for open the professional request of NPVR according to the user, user's recorded content description block of in said user's logical memory space, setting up according to recording request;
Media content obtains subsystem, is used for according to the playing request from the user, obtains corresponding user's recorded content description block in the said storage subsystem; Inquire about the corresponding relation in the said storage subsystem according to said user's recorded content description block, the media content section of the correspondence that obtains in the storage subsystem being stored, and send said media content section.
8. network personal video recorder server according to claim 7 is characterized in that, said storage subsystem comprises:
Memory module is used for the storing media content section;
User storage space is used to store and the corresponding user's recorded content description block of said media content section;
The Storage Mapping manager is used to set up and store the corresponding relation between said user's recorded content description block and the section of said media content.
9. network personal video recorder server according to claim 8 is characterized in that, said section module comprises:
Medium sections unit is used for according to the section instruction from User Manager, source of media is cut into slices according to wherein privately owned period and shared period, obtains the media content section;
The section Dispatching Unit is used for said media content section is distributed to memory module.
10. network personal video recorder server according to claim 8 is characterized in that, said Storage Mapping manager comprises user storage reference list, section storage distribution table and storage administration and map maintenance module;
Said section storage distribution table is used for the distributed intelligence of storing media content section in memory module;
Said user storage reference list is used for storing the reference information of each content description piece of user storage space to the media content section;
Said storage administration and map maintenance module are used for the user storage reference list and the content of section storage distribution table are carried out management maintenance, comprising: the section distributed intelligence in the section storage distribution table is upgraded in the section distributed intelligence according to memory module reports; According to the adduction relationship of media content description block, upgrade the reference information of the media content section in the user storage reference list to the media content section.
11. network personal video recorder server according to claim 10 is characterized in that, said media content obtains subsystem and comprises:
The user storage administration module is used for the recording request according to the user, in user storage space, creates user's recorded content description block, perhaps deletes existing user's recorded content description block in the user storage space; And according to user's playing request; Obtain media content description block corresponding in the said user storage space; Obtain the section distributed intelligence that corresponding media content is cut into slices in the said section storage distribution table according to said media content description block, obtain the media content section in the said memory module according to said section distributed intelligence.
12. network personal video recorder server according to claim 11 is characterized in that, said media content obtains subsystem and further comprises:
User's customized module of recording a video is used for receiving and the analysis user request, and analysis result is sent to user record a video comprehensive module and user storage administration module;
User's comprehensive module of recording a video; The recording request that is used for statistics of user's; System time according to playing programs; With the time interval of cutting apart according to the standard time cut-point in the requirement recorded program time period as the shared period, the time interval that terminal and standard time cut-point are not overlapped is as the privately owned period; The section instruction that will comprise said privately owned period and shared period sends to said section module.
13. the realization system of a network personal video recorder is characterized in that, comprising:
Medium source equipment is used to provide source of media;
The network personal video recorder server; Be used for according to the professional request of network personal video recorder NPVR of opening from subscriber terminal equipment; Establishment is corresponding to this user's logical memory space; In said user's logical memory space, set up user's recorded content description block according to recording request; And obtain the media content section after cutting into slices according to the source of media that said recording request provides said medium source equipment, and store said media content section, set up the corresponding relation between the section of said user's recorded content description block and media content; According to query requests, be sent to said Play Server with self storing the section of respective media content from Play Server;
Play Server; Be used for according to playing request from subscriber terminal equipment; Inquire about corresponding user's recorded content description block in the said network personal video recorder server; Obtain corresponding media content section according to said user's recorded content description block requester network personal video recorder server, and play said media content section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN101588342A (en) * | 2008-05-19 | 2009-11-25 | 华为技术有限公司 | Method, device and system for realizing recording business |
| CN101600090A (en) * | 2009-06-29 | 2009-12-09 | 中兴通讯股份有限公司 | A kind of method and network television system of supporting program recording by user |
| CN101848366B (en) * | 2010-05-07 | 2013-12-04 | 中兴通讯股份有限公司 | Filing and program broadcasting method and equipment of time shift slicing files in IPTV (Internet Protocol Television) system |
| CN103780465B (en) * | 2012-10-22 | 2017-12-29 | 华为终端（东莞）有限公司 | The method and media server, equipment that media content plays |
| CN103997660A (en) * | 2013-02-20 | 2014-08-20 | 中兴通讯股份有限公司 | Program recording method, apparatus and system |
| CN104468303B (en) * | 2013-09-13 | 2018-09-18 | 方正宽带网络服务股份有限公司 | Gateway device, terminal, data management system and method |
| CN108093212A (en) * | 2017-12-11 | 2018-05-29 | 西安优卓软件有限公司 | A kind of business datum and business video correlating method and management system |
| CN109936751A (en) * | 2017-12-15 | 2019-06-25 | 中兴通讯股份有限公司 | Video recording method, device, equipment, computer readable storage medium and system |
| CN114928539B (en) * | 2022-05-13 | 2023-08-15 | 中国广电广州网络股份有限公司 | Broadcast television coaxial network data management method |
| CN115767172A (en) * | 2022-11-22 | 2023-03-07 | 四川长虹电器股份有限公司 | Playback control method and system of smart television |
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| CN1434386A (en) * | 2003-01-25 | 2003-08-06 | 华中科技大学 | Division distributed storage method of program source based on cluster video server |
| CN1652602A (en) * | 2005-02-23 | 2005-08-10 | 乐金电子（沈阳）有限公司 | Multimedia servicer system using network and its servicing method |
| CN101026744A (en) * | 2007-03-30 | 2007-08-29 | Ut斯达康通讯有限公司 | Distributed flow media distribution system, and flow media memory buffer and scheduling distribution method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1434386A (en) * | 2003-01-25 | 2003-08-06 | 华中科技大学 | Division distributed storage method of program source based on cluster video server |
| CN1652602A (en) * | 2005-02-23 | 2005-08-10 | 乐金电子（沈阳）有限公司 | Multimedia servicer system using network and its servicing method |
| CN101026744A (en) * | 2007-03-30 | 2007-08-29 | Ut斯达康通讯有限公司 | Distributed flow media distribution system, and flow media memory buffer and scheduling distribution method |
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