CN101848232B - Multi-viewpoint video transmission device based on P2P (peer to peer) technology - Google Patents
Multi-viewpoint video transmission device based on P2P (peer to peer) technology Download PDFInfo
- Publication number
- CN101848232B CN101848232B CN 201010133712 CN201010133712A CN101848232B CN 101848232 B CN101848232 B CN 101848232B CN 201010133712 CN201010133712 CN 201010133712 CN 201010133712 A CN201010133712 A CN 201010133712A CN 101848232 B CN101848232 B CN 101848232B
- Authority
- CN
- China
- Prior art keywords
- data
- partner
- neighbours
- viewpoint
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 25
- 238000013507 mapping Methods 0.000 claims abstract description 8
- 238000012423 maintenance Methods 0.000 claims description 11
- 230000003139 buffering effect Effects 0.000 claims description 4
- 238000012217 deletion Methods 0.000 claims description 4
- 230000037430 deletion Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 6
- 230000002452 interceptive effect Effects 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 abstract 3
- 230000006870 function Effects 0.000 description 9
- 230000000007 visual effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000004044 response Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
Images
Landscapes
- Information Transfer Between Computers (AREA)
Abstract
The invention provides a multi-view point video transmission device based on the P2P (peer to peer) technology, comprises a node management module, a dispatching module, a synchronization module, a cache module and a player. The node management module manages and maintains the local various members and guarantees the data dispatching of each member; the dispatching module dispatches the node management module according to the buffer mapping of the basic layer and the buffer mapping of the reinforcing layer, distributes a source node for each data block of the basic layer and the reinforcing layer according to the data bitmap, and sends the data requirements to the distributed source node; the synchronization module synchronizes the data of the basic layer and the reinforcing layer and synchronizes the video data of each viewpoint; and the cache module caches the local data bitmap and the data block. The embodiment of the invention utilizes the high-effective data transmission ability of the P2P technology for the layered multi-viewpoint video encoding proposal, solves the great challenge brought by the multi-viewpoint video network transmission and can achieve the effects of stably transmitting the video data and rapidly responding the interactive command.
Description
Technical field
The present invention relates to technical field of computer multimedia, particularly a kind of multi-view point video transmitting device based on P2P (point-to-point).
Background technology
Multi-view point video is a kind of Novel video that comes into vogue in the recent period, and it can bring brand-new visual enjoyment to the user, so this technology has attracted the sight of more and more research institutions concern.Multi-view point video is taken and get by one group of parallel or point-foussed video camera, and multiple different visual effect can be provided, such as the various visual angles panoramic scanning etc. of viewing and admiring, fix under the state in the panoramic scanning and broadcast.
At present, popular in the network have various stream media system softwares, for thousands of user provides Video service.But these service content all are traditional single view videos, along with the development of the network equipment and network technology, provide the multi-view point video service to become possibility in network.The visual enjoyment of multi-view point video is the cost that increases to the video data volume, and viewpoint is more, and video data is also just more, and this has proposed very large challenge to Internet Transmission.
The real-time interactive multi-view video system is proposed by Microsoft Research, Asia, is a kind of video system based on the ip multicast technology, supports live and two kinds of patterns of program request.The user just can watch the video frequency program of many viewpoints as long as a client is installed, and except the video of each viewpoint, spectators can also appreciate three kinds of special efficacys: viewpoint switch, the scanning and playing of fixing scan.
Fix under the scanning mode, the broadcast of video can suspend, and static scene is presented in the user at the moment one by one with continuous viewpoint angles.Playing scanning is under broadcast state dynamic scene to be shown with continuous viewpoint angles.The special efficacy video is processed as video flowing independently, and the same with the video flowing of each viewpoint, server is encoded to the special efficacy video according to each viewpoint video data.When the client sent the instruction of viewpoint switch, server can stop original viewpoint video data transfer, then the video data of transmission new viewpoint.When customer selecting was appreciated the special efficacy video, server stopped the transmission of current view point video data, and the special efficacy video data is sent to client.Do like this burden that can alleviate client, because the machine performance of client is various, may not necessarily bear the job requirement to the video counts real-time coding.But the problem of bringing is exactly to increase the weight of the burden of server, if made the special efficacy video of fix scanning and broadcast scanning each moment of video data, even the computing capability of server is higher than common computer, also is difficult to bear.In this system, the special efficacy video is just to make once every 15 frames.The special efficacy video cache of making is in server, in order to the at any time request of customer in response end.When client had been selected the special efficacy video, server extracted the most close special efficacy video of the moment of giving an order with client and sends from buffer memory.
The shortcoming that prior art exists is that the framework of this system and the coded system of video are so that the data volume that need to transmit is very large, so this has brought a very large difficult problem for the application of this system in real network.
Summary of the invention
The present invention is intended to solve at least one of above-mentioned technological deficiency, and purpose is to propose a kind of multi-view point video transmitting device based on P2P, thereby brings into play better the visual effect advantage of multi-view point video.
For achieving the above object, one aspect of the present invention proposes a kind of multi-view point video transmitting device based on P2P, comprising: the node administration module is used for each class members of this locality is managed and safeguards, and provides safeguard for each member's data dispatch; Scheduler module is used for cushioning mapping and the described node administration module of enhancement layer buffering mapping scheduler according to basic layer, and is each data block distribution source node of basic layer and enhancement layer according to the data bitmap, and sends request of data to the source node that distributes; Synchronization module is used for base layer data and enhancement data are carried out synchronously, and each viewpoint video data is carried out synchronously; Cache module is for data bitmap and the data block of buffer memory this locality; And player, be used for playing corresponding video data according to the viewpoint of user selection.
The embodiment of the invention is towards the multiple view video coding scheme of layering, utilize the data transmission capabilities of P2P technique to high-efficiency, solve the huge challenge that the multi-view point video Internet Transmission brings, can reach the effect of stable transfer video data and quick response interaction instruction.
The aspect that the present invention adds and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or the additional aspect of the present invention and advantage are from obviously and easily understanding becoming the description of embodiment below in conjunction with accompanying drawing, wherein:
Fig. 1 is the schematic diagram based on the multi-view point video transmitting device of P2P of the embodiment of the invention;
Fig. 2 is the structure chart based on the multi-view point video transmitting device of P2P of the preferred embodiment of the present invention;
Fig. 3 is that the partner in viewpoint switch manages schematic diagram in the embodiment of the invention;
Fig. 4 is the structure of multi-view point video data bitmap.
Embodiment
The below describes embodiments of the invention in detail, and the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, only be used for explaining the present invention, and can not be interpreted as limitation of the present invention.
As shown in Figure 1, be the schematic diagram based on the multi-view point video transmitting device of P2P of the embodiment of the invention.This device comprises node administration module 100, scheduler module 200, synchronization module 300, cache module 400 and player 500.Node administration module 100 is used for each class members of this locality is managed and safeguards, and provides safeguard for each member's data dispatch.Scheduler module 200 is used for according to the mapping of basic layer buffering and enhancement layer buffering mapping scheduler node administration module 100, and be each data block distribution source node of basic layer and enhancement layer according to the data bitmap, and to the source node transmission request of data of distribution.Synchronization module 300 is used for base layer data and enhancement data are carried out synchronously, and each viewpoint video data are carried out synchronously.Cache module 400 is used for data bitmap and the data block of buffer memory this locality.Player 500 is used for playing corresponding video data according to the viewpoint of user selection.
Below just will above-mentioned schematic diagram of the present invention be described in detail in the mode of specific embodiment; but need to prove that following examples only are the preferred embodiments of the present invention; modification and conversion that those skilled in the art can above-mentioned principle according to the present invention be equal to following examples, the modification that these are equal to or conversion also all should be included within protection scope of the present invention.
As shown in Figure 2, be the structure chart based on the multi-view point video transmitting device of P2P of the preferred embodiment of the present invention, below just the modules of this device be described in detail.
In one embodiment of the invention, node administration module 100 comprises member management device 110, basic layer partner manager 120, neighbours partner manager 130 and enhancement layer partner manager 140.In order to be distinguished, can be the prefix that all nouns relevant with base layer data all add " B-", and be that all nouns relevant with enhancement data all add the prefix of " E-", for example B-Partner represents that basic layer partner, E-Buffer map represent the data bitmap of enhancement layer.
Because player 500 needs two kinds of data ability displaying videos, be base layer data and enhancement data, therefore local node need to be safeguarded respectively different buddy informations for two kinds of data, wherein, be called basic layer partner with the partner of local node exchange base layer data, the partner of exchange enhancement layer data is called the enhancement layer partner.In addition, different from the single view video system is, in the multi-view point video stream media system, watch the node of same program may not select same viewpoint, those select the different partner of viewpoint who watches from local viewpoint to be called the neighbours partner, they are potential enhancement layer partners, because the user may send the instruction of switching viewpoint at any time current view point are switched to the viewpoint that some neighbours partner is watching at present.
The below introduces respectively function and the operation principle of each manager in the node administration module 100:
Wherein, member management device 110 is used for maintenance and management is carried out in member's tabulation.For example, the new node that adds is the management server of connected system at first, and the information of management server random selection portion partial node from current system sends to new node.These nodes will be considered as initial member by the member management device 110 of new node and join in member's tabulation that it safeguards.Wherein, in embodiments of the present invention, basic layer partner, enhancement layer partner and neighbours partner select from member's tabulation, and therefore, member's tabulation is mother's tabulation of all other tabulations.Member management device 110 is responsible for real-time servicing member tabulation.It regularly exchanges the member's tabulation of oneself with all members, when number of members was on the low side in local member's tabulation, it can select the local member who does not have to be added in the tabulation from member's tabulation that other members send.In addition, in another embodiment of the present invention, member management device 110 also is responsible for regularly sending heartbeat packet to all members, and accept the heartbeat packet that other members send, do not send heartbeat packet if there is the member to surpass certain hour, member management device 110 will think that this member logs off, thereby disconnect with it, and from member tabulation with its deletion.In brief, in embodiments of the present invention, the responsibility of member management device 110 provides the reserves for other managers and guarantees that all members are available.
Basic layer partner manager 120 is used for basic layer partner list carried out maintenance and management, and regularly send to scheduler module 200 with all basic layer buddy exchange data bitmaps and with the data bitmap of receiving, wherein, basic layer partner is the neighbors of picking out from member's tabulation for the base layer data transmission.Basic layer partner manager 120 is responsible for the basic layer of real-time servicing partner list, for example it periodically sorts according to them all basic layer partners to the quantity of the base layer data piece of local node transmission, exceeded the lower limit that sets in advance if come the number of data blocks of last basic layer partner transmission, then basic layer partner manager 120 will be selected new basic layer partner to its deletion from tabulation it will be replaced in the member tabulates.In another embodiment of the present invention, basic layer partner manager 120 also is responsible for timing and all basic layer buddy exchange data bitmaps, then the data bitmap of receiving is passed to scheduler module 200.
Neighbours partner manager 130 is used for neighbours' partner list is carried out maintenance and management, and regularly also preserves with all neighbours' buddy exchange data bitmaps, and wherein, the neighbours partner is the neighbors of selecting different points of view with local node.The neighbours partner also is the neighbors that chooses from member's tabulation, although they are called as the partner, does not have the mutual of video data with local node, because the viewpoint that they are selected is different from local node.Neighbours partner manager 130 adds them in neighbours' partner list and according to the viewpoint that they are selected to and carries out grouping management, and all select the neighbours partner of same viewpoint to be divided into one group.When node just adds system, the user can't learn the content of each viewpoint, also can't select the viewpoint oneself liked, neighbours partner manager 130 will be selected voluntarily a viewpoint and give enhancement layer partner manager 140 this group neighbours partner and be responsible for, the own neighbours partner who only is responsible for other groups at this moment.When the user sends the instruction of viewpoint switch, suppose to switch to viewpoint B from viewpoint A, neighbours partner manager 130 will be fetched that group partner of viewpoint A from enhancement layer partner manager 140 theres, and will give enhancement layer partner manager 140 that group partner of viewpoint B.
As shown in Figure 3, manage schematic diagram for the partner in viewpoint switch in the embodiment of the invention.Suppose that multi-view point video has 4 viewpoints, the user is current, and what watch is second viewpoint.So the neighbours partner of the second viewpoint is used as the enhancement layer partner and is safeguarded by enhancement layer partner manager 140, and the neighbours partner of other three viewpoints grouping is maintained in the neighbours partner manager 130.When the user sent the instruction that switches to the 3rd viewpoint, neighbours partner manager 130 will be the enhancement layer partner list transposition in neighbours' partner list of the 3rd viewpoint and the enhancement layer partner manager 140.
Although the not exchange of video data between neighbours partner and the local node, they can periodic and local node exchange enhancement data bitmap.These data bitmaps just are kept in the neighbours partner manager 130, and can not hand to scheduler module 200, because scheduler module 200 does not need to be these enhancement data of local node request at present.If certain neighbours partner does not send the data bitmap for a long time, neighbours partner manager 130 will its deletion from tabulation, then be selected new substitute from member's tabulation.
In embodiments of the present invention, neighbours partner manager 130 can shorten the time of delay of viewpoint switch widely, and for example, if neighbours partner manager 130 is not set, after the viewpoint switch instruction was sent, node will be done following several things:
1, obtains the nodal information that transmits the new viewpoint video data from management server.The time that this step expends is designated as tp.
2, wait for that new enhancement layer partner sends the data bitmap of new viewpoint video.The time that this step expends is designated as tw.
3, be the enhancement layer video data distribute data source of new viewpoint, and send request of data.The time that this step expends is designated as ts.
4, wait for that the enhancement layer partner sends to this locality to desired data.Expend time in and be designated as tr.
Therefore, total delay time can be expressed as: T=t
p+ t
w+ t
s+ t
r
Yet, if had after the neighbours partner manager 130, when the viewpoint switch instruction is sent, only need the neighbours partner who from neighbours' partner list, proposes respective viewpoints to give enhancement layer partner manager 140.The enhancement layer partner's that these are new data bitmap also keeps maintenance update by neighbours partner manager 130 always, therefore can directly give scheduler module 200 and use.So, total delay time just becomes: T=t
s+ t
r, so can shorten dramatically the time of delay of viewpoint switch.
Enhancement layer partner manager 140 is used for the enhancement layer partner list is carried out maintenance and management, and regularly send to described scheduler module with all enhancement layer buddy exchange data bitmaps and with the data bitmap of receiving, wherein, the enhancement layer partner is the neighbors of picking out from described member's tabulation for the enhancement data transmission, and they are elected from neighbours' partner list and real-time servicing by enhancement layer partner manager 140.When the viewpoint switch instruction is sent, enhancement layer partner manager 140 will be returned neighbours' partner list to them, and the neighbours partner of new viewpoint will become the enhancement layer partner.Then all enhancement layer buddy exchange enhancement data bitmaps during enhancement layer partner manager 140 is gone back timing and tabulated hand to scheduler module 200 to them.The same with basic layer partner manager 120, the efficiency of transmission that enhancement layer partner manager 140 also can real-time oversight enhancement layer partner and the timely underproof enhancement layer partner of replacing.
In addition, in an embodiment of the present invention, base layer data and enhancement data being separated transmission, although effect separately is different, all is indiscriminate data for transmission link.Local node receives base layer data bitmap and enhancement data bitmap there from basic layer partner and enhancement layer partner respectively, then gives scheduler module 200 them respectively.In the present invention, the data bitmap of multi-view point video is different from traditional single view video, as shown in Figure 4, is the structure of multi-view point video data bitmap.Wherein First Sequence is the sequence number of the data block of the sequence number minimum in all data blocks in the buffer memory; Video Type is data type, represents that this data bitmap is layer enhancement layer or basic; Video Sequence is the sequence number of viewpoint, and this field is only meaningful to the enhancement data bitmap, and this field is made as 0 in the base layer data bitmap.After these three fields, be exactly the bitmap of all data blocks, this data block disappearance of 0 expression, 1 expression is kept in the buffer memory.
The transmission of base layer data and enhancement data is independently carried out separately, after all partners' data bitmap upgrades in basic layer or the enhancement layer partner list, scheduler module 200 just is that the data block of respective classes is distributed source node, then sends request of data to it.The dispatching algorithm of in the present invention scheduler module 200 employings is, scheduler module 200 is extracted local data bitmap from cache module 400, therefrom learn and also lack which data block in the local cache, then check partner's data bitmap, learn the data block which partner has this locality to lack, then send request of data to these data blocks.If there are a plurality of partners to have the data that same this locality lacks, then scheduler module 200 will be selected to can the partner of return data sending request of data within the shortest time.
In the multi-view point video technology, its visual effect is the advantage of its maximum, and the interactive operation of viewpoint switch has been given the user the larger degree of freedom, and problem of the thing followed is exactly each viewpoint video stationary problem in time.Not only the video data of each viewpoint is wanted synchronously, also will keep synchronously between the data of basic layer and enhancement layer, and player needs two kinds of data could play preferably the video of certain viewpoint after all.The present invention solves stationary problem by synchronization module 300.The playing progress rate of each node is different in this device, and node will to transmit data what time period be that progress with player 500 is closely-related, so data synchronization problems will be started with from partner's selection.The below is the false code of synchronized algorithm:
Input：
MemberList list of members
B-PartnerList list of B-Partners
First_seq[i] the first sequence of the buffer map of B-Partner[i]or E-Partner[i]
E-PartnerLis[i] list of E-Partners with the ith viewpoint
Lenth： the lenth of the buffer map
Standardization：
1.Rank the B-Partners in B-PartnerList by the first sequence of their buffer maps in increasing
order.
2.Standard←0，max←0
3.for i＝0 to the size of B-PartnerList
4. do n＝0
5. for j＝i to the size of B-PartnerList
6. do if First_seq[i]＜First_seq[j]＜First_seq[i]+Lenth
7. then n++
8. if n＞max
9. then Standard←Firs_seq[i]，max←n
10.Run the Synchronization function
Synchronization：
1.for i＝0 to the size o fB-PartnerList
2. do if First_seq[i]＜Standard or First_seq[i]＞Standard+Lenth
3. then replace B-Partner[i]with a member in MemberList
4. whose First_seq∈(Standard，Standard+Lenth)
5.for i＝1 to the number of the viewpoints
6. do for j＝0 to the size of E-PartnerLis[i]
7. do if First_seq[j]]＜Standard or First_seq[j]＞Standard+Lenth
8. then replace E-Partner[j]with a member in MemberList
whose First_seq[i]∈(Standard，Standard+Lenth)
From above-mentioned algorithm, can see synchronization module 300 must with basic layer partner's manager 120 and neighbours partner manager 130 cooperative cooperatings.The effect of front 9 row of Standardization function is to select only progress, and so-called only progress refers to participate in transmitting the maximum progress of partner of the video data in this time period.The 10th row of this function has called the Synchronization function, and the effect of this function is to guarantee that basic layer partner and enhancement layer partner are the nodes that participates in the transmission of data blocks of optimum progress.Wherein the Standardization function only moves once in the new adding of node.The Synchronization function then is periodically to move, and is consistent all the time with the progress that guarantees all partners.No matter when the viewpoint switch instruction sends, and the data of new and old viewpoint all are continuous in time, can guarantee taking over seamlessly of viewpoint.
In one embodiment of the invention, player 500 can directly call the MediaPlayer player of Microsoft, and those skilled in the art also can select other players certainly, and other players also can be applicable among the present invention.
The embodiment of the invention is towards the multiple view video coding scheme of layering, utilize the data transmission capabilities of P2P technique to high-efficiency, solve the huge challenge that the multi-view point video Internet Transmission brings, can reach the effect of stable transfer video data and quick response interaction instruction.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is by claims and be equal to and limit.
Claims (9)
1. the multi-view point video transmitting device based on P2P is characterized in that, comprising:
The node administration module is used for each class members of this locality is managed and safeguards, and provides safeguard for each member's data dispatch;
Scheduler module is used for cushioning mapping and the described node administration module of enhancement layer buffering mapping scheduler according to basic layer, and is each data block distribution source node of basic layer and enhancement layer according to the data bitmap, and sends request of data to the source node that distributes;
Synchronization module is used for base layer data and enhancement data are carried out synchronously, and each viewpoint video data is carried out synchronously;
Cache module is for data bitmap and the data block of buffer memory this locality; With
Player is used for playing corresponding video data according to the viewpoint of user selection,
Wherein, described node administration module comprises:
The member management device is used for maintenance and management is carried out in member's tabulation;
Basic layer partner manager, be used for basic layer partner list carried out maintenance and management, and regularly send to described scheduler module with all basic layer buddy exchange data bitmaps and with the data bitmap of receiving, wherein, described basic layer partner is the neighbors of picking out from described member's tabulation for the base layer data transmission;
Neighbours partner manager is used for neighbours' partner list is carried out maintenance and management, and regularly also preserves with all neighbours' buddy exchange data bitmaps, and wherein, described neighbours partner is the neighbors of selecting different points of view with local node;
Enhancement layer partner manager, be used for the enhancement layer partner list is carried out maintenance and management, and regularly send to described scheduler module with all enhancement layer buddy exchange data bitmaps and with the data bitmap of receiving, wherein, described enhancement layer partner is the neighbors of picking out from described member's tabulation for the enhancement data transmission.
2. the multi-view point video transmitting device based on P2P as claimed in claim 1, it is characterized in that, described scheduler module is extracted local data bitmap from described cache module, and according to the local data piece of buffer memory and the local definite data block that lacks of data bitmap, according to partner's data bitmap, determine to preserve the partner of the described data block that lacks and send request of data to the described data block that lacks afterwards.
3. the multi-view point video transmitting device based on P2P as claimed in claim 2, it is characterized in that, if described scheduler module judges a plurality of partners and have the data block that same this locality lacks, then described scheduler module is selected to can the partner of return data sending request of data within the shortest time.
4. the multi-view point video transmitting device based on P2P as claimed in claim 1 is characterized in that, described synchronization module is selected optimum progress, and guarantees that basic layer partner and enhancement layer partner participate in the transmission of data block of described optimum progress.
5. the multi-view point video transmitting device based on P2P as claimed in claim 1 is characterized in that, described member management device carries out maintenance and management to member's tabulation and comprises:
Described member management device regularly and other node switching member tabulation, and the number of members in local member's tabulation selects the local member who does not have to be added in the tabulation from member's tabulation that other members send when on the low side; And/or
Described member management device regularly sends heartbeat packet to all members, and accepts the heartbeat packet that other members send, and does not send heartbeat packet if there is the member to surpass certain hour, then with its from member's tabulation with its deletion.
6. the multi-view point video transmitting device based on P2P as claimed in claim 1, it is characterized in that, described basic layer partner's manager and enhancement layer partner manager also are used for real-time oversight basic layer partner and enhancement layer partner's efficiency of transmission, and in time change underproof basic layer partner and enhancement layer partner.
7. the multi-view point video transmitting device based on P2P as claimed in claim 1, it is characterized in that, described neighbours partner manager also is used for when the user sends the viewpoint switch instruction, neighbours' partner list of former viewpoint is fetched from described enhancement layer partner manager, and neighbours' partner list of new viewpoint is sent to described enhancement layer partner manager.
8. such as claim 1 or 7 described multi-view point video transmitting devices based on P2P, it is characterized in that, described neighbours partner manager carries out maintenance and management to neighbours' partner list and comprises:
If certain neighbours partner does not send the data bitmap for a long time, then described neighbours partner manager is deleted this neighbours partner from neighbours' partner list, selects new replacer again from described member's tabulation.
9. the multi-view point video transmitting device based on P2P as claimed in claim 1 is characterized in that, described player directly calls the Media Player player of Microsoft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010133712 CN101848232B (en) | 2010-03-25 | 2010-03-25 | Multi-viewpoint video transmission device based on P2P (peer to peer) technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010133712 CN101848232B (en) | 2010-03-25 | 2010-03-25 | Multi-viewpoint video transmission device based on P2P (peer to peer) technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101848232A CN101848232A (en) | 2010-09-29 |
| CN101848232B true CN101848232B (en) | 2013-03-06 |
Family
ID=42772691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010133712 Expired - Fee Related CN101848232B (en) | 2010-03-25 | 2010-03-25 | Multi-viewpoint video transmission device based on P2P (peer to peer) technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101848232B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102026276A (en) * | 2010-12-21 | 2011-04-20 | 江苏省邮电规划设计院有限责任公司 | Method for guaranteeing mobile peer-to-peer network stream media service experience quality |
| CN106507112B (en) * | 2015-09-07 | 2020-05-12 | 中兴通讯股份有限公司 | Code stream processing method, device and system |
| JP6920987B2 (en) * | 2017-12-28 | 2021-08-18 | キヤノン株式会社 | Information processing equipment, video distribution equipment, their control methods, and programs |
| CN109587712B (en) * | 2018-11-23 | 2021-12-14 | 南京极域信息科技有限公司 | WiFi-Display performance optimization system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101370137A (en) * | 2008-09-17 | 2009-02-18 | 清华大学 | Stream media transmission and broadcast method, system and user terminal equipment |
| CN101409679A (en) * | 2008-11-12 | 2009-04-15 | 中兴通讯股份有限公司 | Method for dynamically regulating data block request in point-to-point stream medium |
| CN101437044A (en) * | 2008-11-28 | 2009-05-20 | 中兴通讯股份有限公司 | Method and system for downloading file by point-to-point network technique based on sliced sheet |
| CN101466038A (en) * | 2008-12-17 | 2009-06-24 | 宁波大学 | Method for encoding stereo video |
-
2010
- 2010-03-25 CN CN 201010133712 patent/CN101848232B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101370137A (en) * | 2008-09-17 | 2009-02-18 | 清华大学 | Stream media transmission and broadcast method, system and user terminal equipment |
| CN101409679A (en) * | 2008-11-12 | 2009-04-15 | 中兴通讯股份有限公司 | Method for dynamically regulating data block request in point-to-point stream medium |
| CN101437044A (en) * | 2008-11-28 | 2009-05-20 | 中兴通讯股份有限公司 | Method and system for downloading file by point-to-point network technique based on sliced sheet |
| CN101466038A (en) * | 2008-12-17 | 2009-06-24 | 宁波大学 | Method for encoding stereo video |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101848232A (en) | 2010-09-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102598692B (en) | Multicasting personalized high definition video content to consumer storage | |
| CN103873889B (en) | Video stream transmission method, video device and video providing device | |
| CN1331359C (en) | Transmission method for video flow in interactive multi-viewpoint video system | |
| He et al. | Fog-based transcoding for crowdsourced video livecast | |
| CN106254899A (en) | The control method of a kind of live even wheat and system | |
| US9432452B2 (en) | Systems and methods for dynamic networked peer-to-peer content distribution | |
| CN101848232B (en) | Multi-viewpoint video transmission device based on P2P (peer to peer) technology | |
| EP2800365B1 (en) | Video playback system | |
| CN102307153A (en) | Virtual desktop transmission device and method | |
| CN103294438A (en) | Transmission control method and system of virtual desktop images | |
| CN102546564A (en) | Information pushing control method and system | |
| CN110012115A (en) | The update method and system of direct broadcasting room pushed information | |
| CN103260052A (en) | Self-adapting display flows | |
| CN103650003A (en) | Image display system, information processing device, server, and image processing method | |
| CN102959955A (en) | Sharing an image | |
| CN105898390A (en) | Virtual video bus-based multi-channel rapid switching method and system | |
| CN104822084A (en) | Concurrent-stream-based rapid channel switching method of P2P real-time playing system | |
| Uddin et al. | 360 degree video caching with LRU & LFU | |
| CN104469259A (en) | Cloud terminal video synthesis method and system | |
| JPWO2010024102A1 (en) | How to distribute video data | |
| CN102882696B (en) | For the method and system that bandwidth self-adaption N to N in compartment system communicates | |
| Lee | Concurrent push-A scheduling algorithm for push-based parallel video servers | |
| Mavlankar et al. | Peer-to-peer multicast live video streaming with interactive virtual pan/tilt/zoom functionality | |
| CN101267542A (en) | VoD system and its implementation method | |
| CN110035295A (en) | Distributed video living transmission system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 |