CN111954083A - Image transmission method, device and system - Google Patents
Image transmission method, device and system Download PDFInfo
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- CN111954083A CN111954083A CN202010744267.7A CN202010744267A CN111954083A CN 111954083 A CN111954083 A CN 111954083A CN 202010744267 A CN202010744267 A CN 202010744267A CN 111954083 A CN111954083 A CN 111954083A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 200
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000012360 testing method Methods 0.000 claims description 36
- 238000010586 diagram Methods 0.000 description 10
- 230000006978 adaptation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/64—Addressing
- H04N21/6405—Multicasting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/161—Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
- H04L69/162—Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields involving adaptations of sockets based mechanisms
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/64—Addressing
- H04N21/6408—Unicasting
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The disclosure provides an image transmission method, device and system. The method is applied to a sending end and comprises the steps of determining whether a plurality of receiving ends are accessed; if a plurality of receiving terminals are accessed, judging whether the plurality of receiving terminals request to acquire the same source terminal picture; if a plurality of receiving terminals request to acquire the same source terminal picture, judging whether the plurality of receiving terminals can perform multicast transmission; if the plurality of receiving ends can perform multicast transmission, determining the receiving ends capable of performing multicast transmission, and creating a transmission multicast group; and carrying out multicast transmission on the receiving ends which can carry out multicast transmission in the plurality of receiving ends through the transmission multicast group, and carrying out unicast transmission on the receiving ends which cannot carry out multicast transmission in the plurality of receiving ends. The image transmission method provided by the disclosure can solve the problem that the network bandwidth cannot be reduced in the prior art.
Description
Technical Field
The present disclosure relates to the field of image transmission technologies, and in particular, to an image transmission method, apparatus, and system.
Background
At present, a scene used by an image transmission system often has a one-to-many scene, namely a picture, which is zoomed out to a plurality of terminals for display. In this scenario, the image is usually transmitted in a unicast manner during the transmission process, so that the data traffic generated by one frame is duplicated in multiple copies, resulting in an increase in network bandwidth.
Disclosure of Invention
The present disclosure is directed to overcome the deficiencies of the prior art, and provide an image transmission method, an image transmission apparatus, and an image transmission system, which can solve the problem that the network bandwidth cannot be reduced in the prior art.
According to a first aspect of embodiments of the present disclosure, there is provided an image transmission method, including:
determining whether a plurality of receiving ends are accessed;
if a plurality of receiving terminals are accessed, judging whether the plurality of receiving terminals request to acquire the same source terminal picture;
if a plurality of receiving terminals request to acquire the same source terminal picture, judging whether the plurality of receiving terminals can perform multicast transmission;
if the plurality of receiving ends can perform multicast transmission, determining the receiving ends capable of performing multicast transmission, and creating a transmission multicast group;
and performing multicast transmission on the receiving end which can perform multicast transmission in the plurality of receiving ends through the transmission multicast group, and performing unicast transmission on the receiving end which cannot perform multicast transmission in the plurality of receiving ends.
In one embodiment, the method further comprises:
and if the receiving ends do not request to acquire the same source end picture, unicast transmission is carried out on the receiving ends.
In one embodiment, the method further comprises:
and if the plurality of receiving ends can not carry out multicast transmission, carrying out unicast transmission on the plurality of receiving ends.
In one embodiment, the method further comprises:
if there are multiple receiving terminals requesting to obtain the same source terminal picture, then judging whether the multiple receiving terminals can perform multicast transmission includes:
creating a test multicast group, and adding a plurality of receiving ends requesting to acquire the same source terminal picture to the test multicast group;
sending a test multicast message to a plurality of receiving ends in the test multicast group, and receiving response messages returned by the plurality of receiving ends in the test multicast group;
and if response messages returned by at least two receiving ends in the test multicast group are received, determining that multicast transmission can be carried out.
In one embodiment, if the plurality of receivers are capable of multicast transmission, determining the receivers capable of multicast transmission and creating the transmission multicast group includes:
creating a socket;
setting the address and port of the transmission multicast group;
sending the address and the port of the multicast group to a receiving end capable of carrying out multicast transmission;
and indicating a receiving end capable of carrying out multicast transmission to create a socket, binding an address and an interface of a transmission multicast group, and adding the transmission multicast group.
In one embodiment, determining whether there is multiple receiver access comprises:
detecting the number of sending ends establishing connection with a receiving end;
and determining whether a plurality of receiving ends are accessed according to the number of the sending ends establishing connection with the receiving ends.
According to a second aspect of the embodiments of the present disclosure, there is provided an image transmission apparatus including:
the determining module is used for determining whether a plurality of receiving ends are accessed;
the judging module judges whether a plurality of receiving terminals request to acquire the same source terminal picture if the plurality of receiving terminals are accessed;
the processing module judges whether the plurality of receiving terminals can carry out multicast transmission if the plurality of receiving terminals request to acquire the same source terminal picture;
a creation module, which determines the receiving end capable of multicast transmission and creates a transmission multicast group if the receiving ends are capable of multicast transmission;
and the transmission module carries out multicast transmission on the receiving end which can carry out multicast transmission in the plurality of receiving ends through the transmission multicast group and carries out unicast transmission on the receiving end which can not carry out multicast transmission in the plurality of receiving ends.
In one embodiment, the processing module includes;
the first establishing submodule is used for establishing a test multicast group and adding a plurality of receiving ends which request to acquire the same source terminal picture to the test multicast group;
the receiving submodule sends the testing multicast message to a plurality of receiving terminals in the testing multicast group and receives response messages returned by the plurality of receiving terminals in the testing multicast group;
and the determining submodule determines that multicast transmission can be carried out if response messages returned by at least two receiving ends in the test multicast group are received.
In one embodiment, the creation module comprises:
the second creating submodule is used for creating a socket;
setting submodule for setting address and port of transmission multicast group;
the sending submodule sends the address and the port of the multicast group to a receiving end capable of carrying out multicast transmission;
and the indicating submodule indicates a receiving end capable of carrying out multicast transmission to create a socket, binds an address and an interface of the transmission multicast group and joins the multicast group.
According to a third aspect of embodiments of the present disclosure, there is provided an image transmission system including:
the system comprises a sending end and a plurality of receiving ends connected with the sending end;
a sending end determines whether a plurality of receiving ends are accessed;
if a plurality of receiving terminals are accessed, the sending terminal judges whether a plurality of receiving terminals request to acquire the same source terminal picture;
if a plurality of receiving terminals request to acquire the same source terminal picture, the sending terminal judges whether the plurality of receiving terminals can perform multicast transmission;
if the plurality of receiving ends can perform multicast transmission, the sending end determines the receiving ends capable of performing multicast transmission and establishes a transmission multicast group;
the sending end carries out multicast transmission on the receiving ends which can carry out multicast transmission in the plurality of receiving ends through the transmission multicast group, and carries out unicast transmission on the receiving ends which cannot carry out multicast transmission in the plurality of receiving ends.
In the image transmission method provided by the disclosure, when a plurality of receiving ends request to acquire the same image source, multicast transmission is performed on the receiving ends capable of performing multicast transmission according to circumstances, and unicast transmission is performed on the receiving ends incapable of performing multicast transmission, so that the network bandwidth is reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a flowchart of an image transmission method according to an embodiment of the present disclosure.
Fig. 2 is a logic diagram of an image transmission method according to an embodiment of the disclosure.
Fig. 3 is an architecture diagram of an image transmission apparatus according to an embodiment of the present disclosure.
Fig. 4 is an architecture diagram of an image transmission apparatus according to an embodiment of the present disclosure.
Fig. 5 is an architecture diagram of an image transmission apparatus according to an embodiment of the present disclosure.
Fig. 6 is a schematic diagram of an image transmission system provided in an embodiment of the present disclosure.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Fig. 1 is a flowchart of an image transmission method according to an embodiment of the present disclosure. As shown in fig. 1, the method includes:
in one embodiment, determining whether there is multiple receiver access comprises:
detecting the number of sending ends establishing connection with a receiving end;
and determining whether a plurality of receiving ends are accessed according to the number of the sending ends establishing connection with the receiving ends.
in one embodiment, if there are multiple receivers requesting to obtain the same source picture, determining whether the multiple receivers can perform multicast transmission includes:
creating a test multicast group, and adding a plurality of receiving ends requesting to acquire the same source terminal picture to the test multicast group;
sending a test multicast message to a plurality of receiving ends in the test multicast group, and receiving response messages returned by the plurality of receiving ends in the test multicast group;
and if response messages returned by at least two receiving ends in the test multicast group are received, determining that multicast transmission can be carried out.
in one embodiment, if the plurality of receivers are capable of multicast transmission, determining the receivers capable of multicast transmission and creating the transmission multicast group includes:
creating a socket;
setting the address and port of the transmission multicast group;
sending the address and the port of the multicast group to a receiving end capable of carrying out multicast transmission;
and indicating a receiving end capable of carrying out multicast transmission to create a socket, binding an address and an interface of a transmission multicast group, and adding the transmission multicast group.
And 105, performing multicast transmission on the receiving end capable of performing multicast transmission in the plurality of receiving ends through the transmission multicast group, and performing unicast transmission on the receiving end incapable of performing multicast transmission in the plurality of receiving ends.
In this step, if response messages sent by all receiving ends are received, multicast transmission is directly carried out on the current multicast group; if not, deleting the non-responded receiving end from the current multicast group, and then respectively establishing unicast connection with the non-responded receiving end, and simultaneously carrying out multicast transmission on the receiving end in the multicast group.
If the multicast transmission is determined to be carried out on all receiving ends, for the sending end, after the source end picture is collected, a multicast data packet is directly generated, and the multicast data packet is transmitted through the current multicast group;
if it is determined that multicast transmission is performed on a part of receiving terminals and unicast transmission is performed on other receiving terminals, for a sending terminal, after a source terminal picture is collected, a multicast data packet and a unicast data packet need to be generated simultaneously, the multicast data packet is sent through a multicast group, and the multicast data packet is copied in multiple copies and then sent to each receiving terminal respectively.
Fig. 2 is a logic diagram of an image transmission method according to an embodiment of the disclosure. As shown in fig. 2, the method includes:
step 201, determining whether a plurality of receiving ends are accessed;
Optionally, as shown in fig. 2, the method further includes:
Optionally, as shown in fig. 2, the method further includes:
Fig. 3 is an architecture diagram of an image transmission apparatus according to an embodiment of the disclosure. As shown in fig. 3, the apparatus includes a determining module 301, a judging module 302, a processing module 303, a creating module 304, and a transmitting module 305; the determining module 301 is configured to determine whether there are multiple receiving ends accessed; the determining module 302 is configured to determine whether multiple receiving ends request to obtain a same source-end picture when multiple receiving ends exist; the processing module 303 is configured to determine whether multiple receiving terminals can perform multicast transmission when the multiple receiving terminals request to obtain a same source terminal picture; the creating module 304 is configured to determine a receiving end capable of performing multicast transmission when the multiple receiving ends are capable of performing multicast transmission, and create a transmission multicast group; the transmission module 305 is configured to perform multicast transmission on a receiving end capable of performing multicast transmission among the multiple receiving ends through a transmission multicast group, and perform unicast transmission on a receiving end incapable of performing multicast transmission among the multiple receiving ends.
Fig. 4 is an architecture diagram of an image transmission apparatus according to an embodiment of the present disclosure. As shown in fig. 4, the apparatus includes a determination module 401, a judgment module 402, a processing module 403, a creation module 404, and a transmission module 405; the processing module 403 includes a first creating sub-module 4031, a receiving sub-module 4032, and a determining sub-module 4033; the first creating submodule 4031 is configured to create a test multicast group, and add a plurality of receiving terminals that request to acquire a same source-end picture to the test multicast group; the receiving submodule 4032 is configured to send a test multicast message to multiple receiving terminals in the test multicast group, and receive response messages returned by the multiple receiving terminals in the test multicast group; the determining submodule 4033 is configured to determine that multicast transmission is possible when response messages returned by at least two receivers in the test multicast group are received.
Fig. 5 is an architecture diagram of an image transmission apparatus according to an embodiment of the disclosure. As shown in fig. 5, the apparatus includes a determining module 501, a judging module 502, a processing module 503, a creating module 504, and a transmitting module 505; wherein, the creating module 504 includes a second creating sub-module 5041, a setting sub-module 5042, a sending sub-module 5043, and a determining sub-module 5044; the second creating sub-module 5041 is used for creating a socket; the setting submodule 5042 is used for setting the address and port of the transmission multicast group; the sending submodule 5043 is configured to send the address and the port of the multicast group to a node capable of multicast transmission; the indicating submodule 5044 is configured to indicate a receiving end capable of performing multicast transmission to create a socket, bind an address and an interface of a transmission multicast group, and join the multicast group.
Fig. 6 is a schematic diagram of an image transmission system provided in an embodiment of the present disclosure. As shown in fig. 6, the system includes:
a transmitting end 601 and a plurality of receiving ends 602 connected to the transmitting end 601;
the sending end 601 determines whether a plurality of receiving ends 602 are accessed;
if a plurality of receiving terminals 602 access, the sending terminal 601 determines whether a plurality of receiving terminals 602 request to acquire the same source terminal picture;
if there are multiple receiving terminals 602 requesting to obtain the same source terminal picture, the sending terminal 601 determines whether the multiple receiving terminals 602 can perform multicast transmission;
if the plurality of receiving terminals 602 are capable of performing multicast transmission, the transmitting terminal 601 determines the receiving terminals 602 capable of performing multicast transmission, and creates a transmission multicast group;
the transmitting end 601 performs multicast transmission on the receiving end 602 capable of multicast transmission among the plurality of receiving ends 602 by transmitting a multicast group, and performs unicast transmission on the receiving end 602 incapable of multicast transmission among the plurality of receiving ends.
In the image transmission method provided by the disclosure, when a plurality of receiving ends request to acquire the same image source, multicast transmission is performed on the receiving ends capable of performing multicast transmission according to circumstances, and unicast transmission is performed on the receiving ends incapable of performing multicast transmission, so that the network bandwidth is reduced.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The aforementioned program may be preset in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (10)
1. An image transmission method is applied to a sending end, and is characterized by comprising the following steps:
determining whether a plurality of receiving ends are accessed;
if a plurality of receiving terminals are accessed, judging whether the plurality of receiving terminals request to acquire the same source terminal picture;
if a plurality of receiving terminals request to acquire the same source terminal picture, judging whether the plurality of receiving terminals can perform multicast transmission;
if the plurality of receiving ends can perform multicast transmission, determining the receiving ends capable of performing multicast transmission, and creating a transmission multicast group;
and carrying out multicast transmission on the receiving ends which can carry out multicast transmission in the plurality of receiving ends through the transmission multicast group, and carrying out unicast transmission on the receiving ends which cannot carry out multicast transmission in the plurality of receiving ends.
2. The method of claim 1, further comprising:
and if the receiving ends do not request to acquire the same source end picture, unicast transmission is carried out on the receiving ends.
3. The method of claim 1, further comprising:
and if the plurality of receiving ends can not carry out multicast transmission, carrying out unicast transmission on the plurality of receiving ends.
4. The method of claim 1, wherein if there are multiple sinks requesting to obtain the same source picture, the determining whether the multiple sinks can perform multicast transmission comprises:
creating a test multicast group, and adding a plurality of receiving ends requesting to acquire the same source terminal picture to the test multicast group;
sending a test multicast message to a plurality of receiving ends in the test multicast group, and receiving response messages returned by the plurality of receiving ends in the test multicast group;
and if response messages returned by at least two receiving ends in the test multicast group are received, determining that multicast transmission can be carried out.
5. The method of claim 1, wherein if the plurality of receivers are capable of multicast transmission, determining the receivers capable of multicast transmission and creating the transmission multicast group comprises:
creating a socket;
setting the address and port of the transmission multicast group;
sending the address and the port of the multicast group to a receiving end capable of carrying out multicast transmission;
and indicating the receiving end capable of carrying out multicast transmission to create a socket, binding the address and the interface of the transmission multicast group, and adding the transmission multicast group.
6. The method of any of claims 1-5, wherein the determining whether there are multiple receiver accesses comprises:
detecting the number of sending ends establishing connection with a receiving end;
and determining whether a plurality of receiving ends are accessed according to the number of the sending ends establishing connection with the receiving ends.
7. An image transmission apparatus, characterized in that the apparatus comprises:
the determining module is used for determining whether a plurality of receiving ends are accessed;
the judging module judges whether a plurality of receiving terminals request to acquire the same source terminal picture if the plurality of receiving terminals are accessed;
the processing module judges whether the plurality of receiving terminals can carry out multicast transmission if the plurality of receiving terminals request to acquire the same source terminal picture;
a creation module, which determines the receiving end capable of multicast transmission and creates a transmission multicast group if the receiving ends are capable of multicast transmission;
and the transmission module carries out multicast transmission on the receiving ends which can carry out multicast transmission in the plurality of receiving ends through the transmission multicast group and carries out unicast transmission on the receiving ends which cannot carry out multicast transmission in the plurality of receiving ends.
8. The apparatus of claim 7, wherein the processing module comprises;
the first establishing submodule is used for establishing a test multicast group and adding a plurality of receiving ends which request to acquire the same source terminal picture to the test multicast group;
the receiving submodule sends a test multicast message to a plurality of receiving ends in the test multicast group and receives response messages returned by the plurality of receiving ends in the test multicast group;
and the determining submodule determines that multicast transmission can be performed if response messages returned by at least two receiving ends in the test multicast group are received.
9. The apparatus of claim 7 or 8, wherein the creation module comprises:
the second creating submodule is used for creating a socket;
setting submodule for setting address and port of transmission multicast group;
the sending submodule sends the address and the port of the multicast group to a receiving end capable of carrying out multicast transmission;
and the indicating submodule indicates the receiving end capable of carrying out multicast transmission to create a socket, binds the address and the interface of the transmission multicast group and joins the multicast group.
10. An image transmission system, characterized in that the system comprises:
the system comprises a sending end and a plurality of receiving ends connected with the sending end;
a sending end determines whether a plurality of receiving ends are accessed;
if a plurality of receiving terminals are accessed, the sending terminal judges whether a plurality of receiving terminals request to acquire the same source terminal picture;
if a plurality of receiving terminals request to acquire the same source terminal picture, the sending terminal judges whether the plurality of receiving terminals can perform multicast transmission;
if the plurality of receiving ends can perform multicast transmission, the sending end determines the receiving ends capable of performing multicast transmission and establishes a transmission multicast group;
and the sending end carries out multicast transmission on the receiving ends which can carry out multicast transmission in the plurality of receiving ends through the transmission multicast group and carries out unicast transmission on the receiving ends which can not carry out multicast transmission in the plurality of receiving ends.
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| CN202010744267.7A CN111954083A (en) | 2020-07-29 | 2020-07-29 | Image transmission method, device and system |
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| CN202010744267.7A CN111954083A (en) | 2020-07-29 | 2020-07-29 | Image transmission method, device and system |
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| CN101163320A (en) * | 2006-10-13 | 2008-04-16 | 华为技术有限公司 | Method, system and device for obtaining multicast capability and processing bearing |
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