CN104796794A - Video transmission path determination method and device - Google Patents
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- CN104796794A CN104796794A CN201510213437.8A CN201510213437A CN104796794A CN 104796794 A CN104796794 A CN 104796794A CN 201510213437 A CN201510213437 A CN 201510213437A CN 104796794 A CN104796794 A CN 104796794A
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Abstract
The invention discloses a video transmission path determination method and device for increasing video transmission speed. The method includes: determining a direct path and indirect paths between the starting point and the ending point of a video transmission path, wherein the direct path is a path direct to the ending point from the starting point, and the indirect paths are paths from the starting point to the ending point through one or more transfer points; dividing the indirect paths according to the transfer nodes, and computing the sum of network overhead of all sections of branch paths; comparing the network overhead of the direct path with the sum of network overhead of all the branch paths, and taking the path with the lowest communication overhead as the transmission path. By the method and device, the path with fast transmission speed or less time is selected as the transmission path, so that the video transmission speed is increased.
Description
Technical field
The present invention relates to Internet technical field, particularly a kind of defining method of video transmission path and device.
Background technology
Existing Video transmission system comprises main controlled node and multiple ordinary node.Wherein, the video resource collected separately is sent to main controlled node by ordinary node, carries out the process such as editor by main controlled node to video resource.But, realizing inventor's discovery in process of the present invention, due to the restriction of bandwidth, transmission link between ordinary node and main controlled node is being unsuitable for transmission of video in some cases, and such as, transmission speed is slow, thus cause the sluggishness of transmission of video, have impact on the transmission speed of video.
Summary of the invention
In view of the above problems, the present invention is proposed to provide a kind of overcoming the problems referred to above or a kind of defining method of video transmission path solved the problem at least in part and device, in order to improve the transmission speed of video.
The invention provides a kind of defining method of video transmission path, comprising:
Determine the directapath between the starting point of video transmission path and terminal and indirect path; Described directapath is from starting point directly to the path of terminal, and described indirect path is the path of being reached home by one or more transit node from described starting point;
According to transit node, path division is carried out to described indirect path, calculates the network overhead sum of each section of sub-path;
The network overhead of more described directapath and the network overhead sum of described each sub-path, using path less for wherein communication overhead as transmission path.
In possibility, described method also can comprise:
In advance the transmission time of the annexation each other of each node in network and setting data amount is detected;
According to each node annexation each other and described transmission time, generating network situation matrix;
Correspondingly, the communication overhead of described each section of sub-path and the communication overhead of described directapath, determine by inquiring about described network condition matrix.
In possibility, describedly in advance the annexation of each node in network and the transmission time of setting data amount to be detected, specifically comprise:
Each node in traverses network, obtains the annexation between the coupled each node of each node, the transmission time of setting data amount between each node; The annexation of each node that described each node is coupled, the transmission time of setting data amount between each node carry out periodicity transmission detection packet by each node to other nodes that it is connected to carry out detection and obtain.
In possibility, the network overhead of more described directapath and the network overhead sum of described each sub-path, using path less for wherein communication overhead as transmission path, specifically comprise:
From described network condition matrix, inquire about the transmission time of origin-to-destination in described directapath respectively, and the transmission time between the origin-to-destination of each sub-path;
Calculate the transmission time sum of each sub-path;
Transmission time corresponding for described directapath and the transmission time sum that calculates are compared, select the wherein transmission time shorter as transmission path.
In possibility, when described method is applied to Intelligent Transportation Systems, determine that directapath and indirect path can comprise:
Path without transfer determining from other types node to first kind node is directapath;
Determine that the path arrived between first kind node through transfer from other types node is indirect path, described transfer is taken on by the 3rd type node or the 4th type node;
Described Intelligent Transportation Systems comprises: first kind node and connected some other types nodes, connects or do not connect between the node of some other types; Wherein:
First kind node is responsible receiving video data, not to outgoing video data, and can not as the node of transit node;
Other types node comprises:
Second Type node is responsible collection video data, and first kind node is sent video data, but not as the node of transit node;
3rd type node is not responsible collection video data, from other node receiving video datas, as transit node;
4th type node is responsible collection video data, from other node receiving video datas, as transit node.
The present invention also provides a kind of determining device of video transmission path, comprising:
Path determination module, determines the directapath between the starting point of video transmission path and terminal and indirect path; Described directapath is from starting point directly to the path of terminal, and described indirect path is the path of being reached home by one or more transit node from described starting point;
Divide module, for carrying out path division to described indirect path according to transit node;
Expense determination module, for determining the network overhead of described directapath, and calculates the network overhead sum of each section of sub-path;
Path selection module, for the network overhead of more described directapath and the network overhead sum of described each sub-path, using path less for wherein communication overhead as transmission path.
In possibility, described device also can comprise:
Detecting module, for detecting the transmission time of the annexation each other of each node in network and setting data amount in advance;
Network condition matrix generation module, for according to each node annexation each other and described transmission time, generating network situation matrix;
Correspondingly, described expense determination module, determines the communication overhead of each section of sub-path and the communication overhead of described directapath specifically for inquiring about described network condition matrix.
In possibility, detecting module, specifically for each node in traverses network, obtains the annexation between the coupled each node of each node, the transmission time of setting data amount between each node; The annexation of each node that described each node is coupled, the transmission time of setting data amount between each node carry out periodicity transmission detection packet by each node to other nodes that it is connected to carry out detection and obtain.
In possibility, described expense determination module, specifically for from described network condition matrix, inquires about the transmission time of origin-to-destination in described directapath respectively, and the transmission time between the origin-to-destination of each sub-path; Calculate the transmission time sum of each sub-path;
Described path selection module, specifically for transmission time corresponding for described directapath and the transmission time sum that calculates are compared, select the wherein transmission time shorter as transmission path.
In possibility, when being applied to Intelligent Transportation Systems, described path determination module, the path without transfer also can be used for determining from other types node to first kind node is directapath; Determine that the path arrived between first kind node through transfer from other types node is indirect path, described transfer is taken on by the 3rd type node or the 4th type node;
Described Intelligent Transportation Systems comprises: first kind node and connected some other types nodes, connects or do not connect between the node of some other types; Wherein:
First kind node is responsible receiving video data, not to outgoing video data, and can not as the node of transit node;
Other types node comprises:
Second Type node is responsible collection video data, and first kind node is sent video data, but not as the node of transit node;
3rd type node is not responsible collection video data, from other node receiving video datas, as transit node;
4th type node is responsible collection video data, from other node receiving video datas, as transit node.
Some beneficial effects of the embodiment of the present invention can comprise: by determining directapath between the starting point of video transmission path and terminal and indirect path, and according to transit node, path division is carried out to indirect path, calculate the network overhead sum of each section of sub-path, the relatively network overhead of directapath and the network overhead sum of each sub-path, using path less for wherein communication overhead as transmission path, thus transmission speed is fast or spended time is few path can be selected as transmission path, improve the transmission speed of video.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from specification, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in write specification, claims and accompanying drawing and obtain.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, together with embodiments of the present invention for explaining the present invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the flow chart of the defining method of a kind of video transmission path in the embodiment of the present invention;
Fig. 2 is the structural representation that the embodiment of the present invention is applied to Intelligent Transportation Systems;
Fig. 3 is the block diagram of the determining device of a kind of video transmission path in the embodiment of the present invention;
Fig. 4 is the block diagram of the determining device of another kind of video transmission path in the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
Figure 1 shows that the flow chart of the defining method of a kind of video transmission path in the embodiment of the present invention, as shown in Figure 1, comprise the following steps S11-S13:
Step S11, determines the directapath between the starting point of video transmission path and terminal and indirect path; Directapath is from starting point directly to the path of terminal, and indirect path is the path of being reached home by one or more transit node from starting point.
In one embodiment, the present invention can be applicable in Video transmission system, in Video transmission system, usually can comprise main controlled node (namely first kind node) hereinafter and multiple branch node (namely hereinafter second and third, four type node).First kind node is the terminal of video transmission path, for receiving the video sent from each branch node, carries out follow-up process to video, as editor etc.When there being new node to join this system, the information of the node newly added also can be sent to other branch nodes by main controlled node.Second and third, four type node can directly to first kind node-node transmission video, also by turning to first kind node-node transmission video in other transit node.Illustrate, node 4 sends video to node 1, wherein, node 4 belongs to the 4th type node, node 1 belongs to first kind node, transmission of video is directly called directapath to the transmission path of node 1 by node 4, in some cases, because node 4 is to reasons such as the network condition of node 1 are bad, transmission speed is slow, then transit node can be selected to forward video, video is transmitted to node 3 by node 4, by node 3, transmission of video is called indirect path to the transmission path of node 1 again, wherein, node 3 belongs to the 3rd type node.In the transmitting procedure of primary video, transit node can have multiple, but the best, transit node is no more than two.Transfer path can not be turned round, and such as, can not be node 4-node 3-node 4-node 1.
Step S12, carries out path division to indirect path according to transit node, calculates the network overhead sum of each section of sub-path.
Illustrate, by video, node 3 is transmitted to for node 4, again by node 3 by transmission of video to the indirect path of node 1, path division is carried out according to transit node, each sub-path is node 4-node 3, node 3-node 1, calculate the network overhead of each sub-path respectively, and calculate the network overhead sum of each section of sub-path, network overhead can be information time required for transmission of video etc. characterizing transmission of video speed.
Step S13, compares the network overhead of directapath and the network overhead sum of each sub-path, using path less for wherein communication overhead as transmission path.
Illustrate, suppose that directapath is that node 4 is directly transferred to node 1, required time is 10 minutes, transfer path is that video is transmitted to node 3 by node 4, again by node 3 by transmission of video to node 1, it is 3 minutes that video is transmitted to node 3 required time by its interior joint 4, and transmission of video is 4 minutes to node 1 required time by node 3, the network overhead of indirect path is the network overhead sum of two sub-paths, namely 7 minutes.Directapath and indirect path are compared, indirect path required time is less, and namely communication overhead is less, using indirect path as transmission path, improves the transmission speed of video.For another example, directapath required time is 8 minutes, indirect path required time sum 12 minutes, then using the transmission path of directapath as video.
The said method of the embodiment of the present invention, by determining directapath between the starting point of video transmission path and terminal and indirect path, and according to transit node, path division is carried out to indirect path, calculate the network overhead sum of each section of sub-path, the relatively network overhead of directapath and the network overhead sum of each sub-path, using path less for wherein communication overhead as transmission path, thus transmission speed is fast or spended time is few path can be selected as transmission path, improve the transmission speed of video.
In one embodiment, before step S11 or step S12, said method also can comprise step S14-S15:
Step S14, detects the transmission time of the annexation each other of each node in network and setting data amount in advance;
In one embodiment, step S14 can be embodied as under type:
Each node in traverses network, obtains the annexation between the coupled each node of each node, the transmission time of setting data amount between each node; The annexation of each node that each node is coupled, the transmission time of setting data amount between each node carry out periodicity transmission detection packet by each node to other nodes that it is connected to carry out detection and obtain.
First kind node is first node in system, when there being new node to add system, is first connected with first kind node, and in connection procedure, inform the identity of first kind node oneself, and identity can be such as node 2,3,4.First kind node sends a notification message to new node, the information of other nodes in its reporting system, as IP (internet protocol, Internet Protocol) address and port numbers etc.If new node is the node of Intranet, then only to the information of other node of its notice outer net.Because Intranet node cannot be connected with Intranet node.If new node is third and fourth type node, then first kind node notifies adding of new node to other all node, and the information of new node is as IP address and port numbers etc.Second and third, four type node regularly to first and third in system, four type node send detection packet, know the network condition with opposite end by detection packet.Meanwhile, the connection (network architecture and network speed) of self and other node is also sent to local terminal by opposite end.
Step S15, according to each node annexation each other and transmission time, generating network situation matrix;
Correspondingly, in above-mentioned S12 and S13, the communication overhead of each section of sub-path and the communication overhead of directapath, determined by requester network situation matrix.
The transmission time of each node annexation each other and transmission setting data amount can be shown, the convenient communication overhead calculating directapath and indirect path in network condition matrix, and then using path less for communication overhead as transmission path.
Certainly, the parameters such as network overhead can adopt other parameters, such as network speed are considered, and correspondingly, in network condition matrix, the related data of record above-mentioned parameter, so that computing network expense uses.The embodiment in embodiment and transmission time is similar, is not described in detail in this.
In one embodiment, step S13 can be embodied as following steps A1-A3:
Steps A 1, from network condition matrix, inquires about the transmission time of origin-to-destination in directapath respectively, and the transmission time between the origin-to-destination of each sub-path;
Steps A 2, calculates the transmission time sum of each sub-path;
Steps A 3, compares transmission time corresponding for directapath and the transmission time sum that calculates, select the wherein transmission time shorter as transmission path.
Illustrate, starting point is node 3, terminal is node 1, node 3 sends video to node 1, directapath is that node 3 sends video directly to node 1, from network condition matrix, query node 3 is to the network condition of node 1, i.e. transmission time of origin-to-destination in directapath, it is such as 20 minutes, if by node 4 transfer, from network condition matrix, then distinguish query node 3 to node 4, node 4 is to the transmission time of node 1, such as be respectively 6 minutes and 8 minutes, calculate the transmission time sum of each sub-path, namely 14 minutes, because the time of indirect path travel video cost is few compared with directapath, so using indirect path node 3-node 4-node 1 as transmission path, improve transmission speed.
In one embodiment, when said method is applied to Intelligent Transportation Systems, determine that directapath and indirect path can comprise:
Path without transfer determining from other types node to first kind node is directapath; Wherein, other types node be second and third, four type node.
Determine that the path arrived between first kind node through transfer from other types node is indirect path, transfer is taken on by the 3rd type node or the 4th type node; Second Type node is responsible for gathering video, not as transit node.
Intelligent Transportation Systems comprises: first kind node and connected some other types nodes, connects or do not connect between the node of some other types; As shown in Figure 2, wherein:
First kind node is responsible receiving video data, not to outgoing video data, and can not as the node of transit node; Such as node 1.
Other types node comprises:
Second Type node is responsible collection video data, and first kind node is sent video data, but not as the node of transit node; Such as node 2.
3rd type node is not responsible collection video data, from other node receiving video datas, as transit node; Such as node 3.
4th type node is responsible collection video data, from other node receiving video datas, as transit node, and such as node 4,5.
Preferably, the defining method of video transmission path in the embodiment of the present invention, in the specific implementation, can use following code algorithm to realize:
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of determining device of video transmission path, the principle of dealing with problems due to this device is similar to the defining method of aforementioned video transmission path, therefore the enforcement of this device see the enforcement of preceding method, can repeat part and repeats no more.
Figure 3 shows that the block diagram of the determining device of a kind of video transmission path in the embodiment of the present invention, as shown in Figure 3, this device comprises:
Path determination module 31, determines the directapath between the starting point of video transmission path and terminal and indirect path; Directapath is from starting point directly to the path of terminal, and indirect path is the path of being reached home by one or more transit node from starting point;
Divide module 32, for carrying out path division to indirect path according to transit node;
Expense determination module 33, for determining the network overhead of directapath, and calculates the network overhead sum of each section of sub-path;
Path selection module 34, for the network overhead sum of the network overhead and each sub-path that compare directapath, using path less for wherein communication overhead as transmission path.
In possibility, as shown in Figure 4, said apparatus also can comprise:
Detecting module 35, for detecting the transmission time of the annexation each other of each node in network and setting data amount in advance;
Network condition matrix generation module 36, for according to each node annexation each other and transmission time, generating network situation matrix;
Correspondingly, expense determination module 33, determines the communication overhead of each section of sub-path and the communication overhead of directapath specifically for requester network situation matrix.
In possibility, detecting module 35, specifically for each node in traverses network, obtains the annexation between the coupled each node of each node, the transmission time of setting data amount between each node; The annexation of each node that each node is coupled, the transmission time of setting data amount between each node carry out periodicity transmission detection packet by each node to other nodes that it is connected to carry out detection and obtain.
In possibility, expense determination module 33, specifically for from network condition matrix, inquires about the transmission time of origin-to-destination in directapath respectively, and the transmission time between the origin-to-destination of each sub-path; Calculate the transmission time sum of each sub-path;
Path selection module 31, specifically for transmission time corresponding for directapath and the transmission time sum that calculates are compared, select the wherein transmission time shorter as transmission path.
In possibility, when the determination application of installation of the video transmission path that the embodiment of the present invention provides determines video transmission path in Intelligent Transportation Systems, above-mentioned path determination module 31, the path without transfer also can be used for determining from other types node to first kind node is directapath; Determine that the path arrived between first kind node through transfer from other types node is indirect path, transfer is taken on by the 3rd type node or the 4th type node;
Wherein, Intelligent Transportation Systems comprises: first kind node and connected some other types nodes, connects or do not connect between the node of some other types; Wherein:
First kind node is responsible receiving video data, not to outgoing video data, and can not as the node of transit node;
Other types node comprises:
Second Type node is responsible collection video data, and first kind node is sent video data, but not as the node of transit node;
3rd type node is not responsible collection video data, from other node receiving video datas, as transit node;
4th type node is responsible collection video data, from other node receiving video datas, as transit node.
The said apparatus of the embodiment of the present invention, by determining directapath between the starting point of video transmission path and terminal and indirect path, and according to transit node, path division is carried out to indirect path, calculate the network overhead sum of each section of sub-path, the relatively network overhead of directapath and the network overhead sum of each sub-path, using path less for wherein communication overhead as transmission path, thus transmission speed is fast or spended time is few path can be selected as transmission path, improve the transmission speed of video.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store and optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. a defining method for video transmission path, is characterized in that, comprising:
Determine the directapath between the starting point of video transmission path and terminal and indirect path; Described directapath is from starting point directly to the path of terminal, and described indirect path is the path of being reached home by one or more transit node from described starting point;
According to transit node, path division is carried out to described indirect path, calculates the network overhead sum of each section of sub-path;
The network overhead of more described directapath and the network overhead sum of described each sub-path, using path less for wherein communication overhead as transmission path.
2. the method for claim 1, is characterized in that, also comprises:
In advance the transmission time of the annexation each other of each node in network and setting data amount is detected;
According to each node annexation each other and described transmission time, generating network situation matrix;
Correspondingly, the communication overhead of described each section of sub-path and the communication overhead of described directapath, determine by inquiring about described network condition matrix.
3. method as claimed in claim 2, is characterized in that, describedly detects the annexation of each node in network and the transmission time of setting data amount in advance, specifically comprises:
Each node in traverses network, obtains the annexation between the coupled each node of each node, the transmission time of setting data amount between each node; The annexation of each node that described each node is coupled, the transmission time of setting data amount between each node carry out periodicity transmission detection packet by each node to other nodes that it is connected to carry out detection and obtain.
4. method as claimed in claim 2, it is characterized in that, the network overhead of more described directapath and the network overhead sum of described each sub-path, using path less for wherein communication overhead as transmission path, specifically comprise:
From described network condition matrix, inquire about the transmission time of origin-to-destination in described directapath respectively, and the transmission time between the origin-to-destination of each sub-path;
Calculate the transmission time sum of each sub-path;
Transmission time corresponding for described directapath and the transmission time sum that calculates are compared, select the wherein transmission time shorter as transmission path.
5. the method as described in any one of claim 1-4, is characterized in that, when described method is applied to Intelligent Transportation Systems, determines that directapath and indirect path comprise:
Path without transfer determining from other types node to first kind node is directapath;
Determine that the path arrived between first kind node through transfer from other types node is indirect path, described transfer is taken on by the 3rd type node or the 4th type node;
Described Intelligent Transportation Systems comprises: first kind node and connected some other types nodes, connects or do not connect between the node of some other types; Wherein:
First kind node is responsible receiving video data, not to outgoing video data, and can not as the node of transit node;
Other types node comprises:
Second Type node is responsible collection video data, and first kind node is sent video data, but not as the node of transit node;
3rd type node is not responsible collection video data, from other node receiving video datas, as transit node;
4th type node is responsible collection video data, from other node receiving video datas, as transit node.
6. a determining device for video transmission path, is characterized in that, comprising:
Path determination module, determines the directapath between the starting point of video transmission path and terminal and indirect path; Described directapath is from starting point directly to the path of terminal, and described indirect path is the path of being reached home by one or more transit node from described starting point;
Divide module, for carrying out path division to described indirect path according to transit node;
Expense determination module, for determining the network overhead of described directapath, and calculates the network overhead sum of each section of sub-path;
Path selection module, for the network overhead of more described directapath and the network overhead sum of described each sub-path, using path less for wherein communication overhead as transmission path.
7. device as claimed in claim 6, is characterized in that, also comprise:
Detecting module, for detecting the transmission time of the annexation each other of each node in network and setting data amount in advance;
Network condition matrix generation module, for according to each node annexation each other and described transmission time, generating network situation matrix;
Correspondingly, described expense determination module, determines the communication overhead of each section of sub-path and the communication overhead of described directapath specifically for inquiring about described network condition matrix.
8. device as claimed in claim 7, is characterized in that, detecting module, specifically for each node in traverses network, obtains the annexation between the coupled each node of each node, the transmission time of setting data amount between each node; The annexation of each node that described each node is coupled, the transmission time of setting data amount between each node carry out periodicity transmission detection packet by each node to other nodes that it is connected to carry out detection and obtain.
9. device as claimed in claim 7, it is characterized in that, described expense determination module, specifically for from described network condition matrix, inquire about the transmission time of origin-to-destination in described directapath respectively, and the transmission time between the origin-to-destination of each sub-path; Calculate the transmission time sum of each sub-path;
Described path selection module, specifically for transmission time corresponding for described directapath and the transmission time sum that calculates are compared, select the wherein transmission time shorter as transmission path.
10. the device as described in any one of claim 6-9, is characterized in that, when being applied to Intelligent Transportation Systems, described path determination module is also directapath for the path without transfer determining from other types node to first kind node; Determine that the path arrived between first kind node through transfer from other types node is indirect path, described transfer is taken on by the 3rd type node or the 4th type node;
Described Intelligent Transportation Systems comprises: first kind node and connected some other types nodes, connects or do not connect between the node of some other types; Wherein:
First kind node is responsible receiving video data, not to outgoing video data, and can not as the node of transit node;
Other types node comprises:
Second Type node is responsible collection video data, and first kind node is sent video data, but not as the node of transit node;
3rd type node is not responsible collection video data, from other node receiving video datas, as transit node;
4th type node is responsible collection video data, from other node receiving video datas, as transit node.
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| CN105897581A (en) * | 2015-11-20 | 2016-08-24 | 乐视云计算有限公司 | Media file back source path determination method and device in CDN network |
| WO2018121741A1 (en) * | 2016-12-30 | 2018-07-05 | 北京奇虎科技有限公司 | Streaming data cross-domain transmission method and device |
| CN111163363A (en) * | 2019-12-26 | 2020-05-15 | 武汉兴图新科电子股份有限公司 | Method for dynamically adjusting video transmission route |
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