CN110545487B - Multicast signal addressing method, transmission method and device and switch - Google Patents
Multicast signal addressing method, transmission method and device and switch Download PDFInfo
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- CN110545487B CN110545487B CN201910768720.5A CN201910768720A CN110545487B CN 110545487 B CN110545487 B CN 110545487B CN 201910768720 A CN201910768720 A CN 201910768720A CN 110545487 B CN110545487 B CN 110545487B
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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
- 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
- H04N21/643—Communication protocols
- H04N21/64322—IP
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
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- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
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Abstract
The embodiment of the application provides a multicast signal addressing method, a transmission device and a switch. The addressing method comprises the following steps: acquiring a signal stream to be transmitted; determining a multicast identifier, a signal protocol type, a signal generating device and port and a signal service type of a signal stream; and addressing the signal stream according to the multicast identification, the signal protocol type, the signal generating equipment and the port and the signal service type of the signal stream. By adopting the scheme in the application, efficient multicast signal transmission can be realized.
Description
Technical Field
The present application relates to the field of broadcast television, and in particular, to a multicast signal addressing method, a multicast signal transmission device, and a switch.
Background
In the field of broadcast television production and broadcasting, high-definition television usually adopts an SDI coaxial cable to transmit uncompressed signals. The transmission data volume of the 4K ultra-high definition signal is four times of that of the high definition signal, and the coaxial cable with higher bandwidth is adopted for transmission, so that the transmission distance is limited. To solve this problem, in recent years, a method of employing IP encapsulation transmission has appeared in 4K ultra high definition transmission.
However, the inventor finds that when the uncompressed signal is transmitted by using the IP encapsulation, the types of signal protocols involved are various, for example, the SMPTE2022-6 standard for video and audio integration; the SMPTE2110 standard for video, audio, and auxiliary data separation. The production and broadcasting system is a complex system, different devices come from different manufacturers, and different signal protocol types are adopted, so that how to address signal streams transmitted in the system to realize more efficient signal transmission becomes a difficult problem to be solved urgently.
Disclosure of Invention
The embodiment of the application provides a multicast signal addressing method, a transmission device and a switch, which are used for solving at least one problem.
According to a first aspect of embodiments of the present application, there is provided a method for addressing a multicast signal, comprising: acquiring a signal stream to be transmitted; determining a multicast identifier, a signal protocol type, a signal generating device and port and a signal service type of a signal stream; and addressing the signal stream according to the multicast identification, the signal protocol type, the signal generating equipment and the port and the signal service type of the signal stream.
According to a second aspect of embodiments of the present application, there is provided a multicast signal transmission method, including: addressing the signal stream by adopting the addressing method; and transmitting the signal stream in a multicast mode according to the obtained address.
According to a third aspect of embodiments of the present application, there is provided a multicast signal addressing apparatus, comprising: the device comprises an acquisition unit, a transmission unit and a transmission unit, wherein the acquisition unit is used for acquiring a signal stream to be transmitted; a determining unit, configured to determine a multicast identifier, a signal protocol type, a signal generating device and port, and a signal service type of a signal stream; and the addressing unit is used for addressing the signal stream according to the multicast identification, the signal protocol type, the signal generating equipment and the port and the signal service type of the signal stream.
According to a fourth aspect of embodiments of the present application, there is provided a multicast signal transmission apparatus including: the multicast signal addressing device; and a transmission unit for transmitting the signal stream in a multicast manner according to the obtained address.
According to a fifth aspect of embodiments of the present application, there is provided a switch, including: the multicast signal addressing device.
By adopting the multicast signal addressing method, the transmission method and the transmission device, and the switch provided by the embodiment of the application, before transmission, the signal stream is addressed according to the multicast identifier, the signal protocol type, the signal generating equipment and the port of the signal stream, and the signal service type of the signal stream, so that efficient multicast signal transmission is realized.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 shows a flow chart of a multicast signal addressing method according to a first embodiment of the present application;
fig. 2 is a flowchart illustrating a method of transmitting a multicast signal according to a second embodiment of the present application;
fig. 3 is a schematic diagram illustrating a structure of a multicast signal addressing apparatus according to a third embodiment of the present application;
fig. 4 is a schematic structural diagram of a multicast signal transmission apparatus according to a fourth embodiment of the present application;
fig. 5 shows a schematic structural diagram of a switch according to an embodiment of the present application.
Detailed Description
In the process of implementing the application, the inventor finds that uncompressed signal transmission using IP encapsulation is a relatively new method in a broadcast television production and broadcast domain, but for a complex system, namely under the condition that multicast signals in multiple protocol formats exist in the same system, no standard or better addressing method can realize efficient signal transmission at present; and is not beneficial to quick management and convenient maintenance.
In order to solve at least one of the above problems, embodiments of the present application provide a multicast signal addressing method, a transmission method and apparatus, and a switch, where before transmission, a signal stream is addressed according to a multicast identifier, a signal protocol type, a signal generating device and a port, and a signal service type of the signal stream, so as to implement efficient multicast signal transmission.
Further, the embodiment of the application realizes the classification of the multicast signals of different protocols, different bandwidths, different generating devices and different service scenes, designs an IP coding matrix (corresponding relation), can be applied to addressing of uncompressed video and audio multicast, and can also be expanded to addressing of a multicast system with a plurality of protocols, bandwidths, compression and uncompressed mixed existence. The problem of 4K ultra-high-definition system non-compressed video audio multicast IP addressing disorder results in at the complicated maintenance of switch tactics configuration and signal multicast management is solved.
In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Example one
Fig. 1 shows a flowchart of a multicast signal addressing method according to a first embodiment of the present application.
As shown in fig. 1, a multicast signal addressing method according to a first embodiment of the present application includes the following steps:
s101, obtaining a signal stream to be transmitted.
In specific implementation, the signal stream to be transmitted may be a video signal, an audio signal, a data signal, a clock signal, or the like.
In particular implementation, before S101, the signal streams may be classified in advance. Specifically, firstly, a signal multicast address range is determined, and a local area network multicast address range is given according to a service scene; and then, in order to realize the classification management and routing strategy and security strategy configuration of different protocols and different signal types, classifying the multicast signals of the 4K uncompressed video and audio IP system. Specifically, the multicast may be first classified according to the IP signal encapsulation protocol: there are divided into an uncompressed signal IP stream of SMPTE2022-6 protocol, an uncompressed signal IP stream of SMPTE2110 protocol, and a PTP synchronization signal IP stream of SMPTE 2059. Second sorting the broadcasts according to protocol, video, audio, auxiliary data, etc.: the SMPTE2022-6 is an uncompressed audio and video signal, and the SMPTE2110 signal stream is divided into IP streams of uncompressed video, audio, auxiliary data, clocks and the like. And performing third classification on the multicast according to video bandwidth, audio channels and the like: reserving an uncompressed 4K audio/video signal-12 Gbps 3G signal; dividing the signal stream of the SMPTE2022-6 protocol into a non-compressed high-definition 3G audio/video signal-3 Gbps and a non-compressed high-definition 1.5G audio/video signal-1.5 Gbps; the SMPTE2110 signal video stream is divided into an uncompressed 4K video signal, an uncompressed high-definition 3G video signal, an uncompressed high-definition 1.5G video signal, an audio 1 signal, an audio 2 signal and an auxiliary data signal.
S102, determining the multicast identification, the signal protocol type, the signal generating equipment and port and the signal service type of the signal stream.
In a specific implementation, the signal protocol type may include a protocol name of the signal stream, a master/slave condition, and one or more of the following: data type, transmission type, video signal type, video bandwidth, or audio channel.
In particular implementations, the protocol name may include a SMPTE2022-6 protocol, a SMPTE2110 protocol, or a SMPTE2059 protocol; the data type may include video data, audio data, auxiliary data, or clock data; the transmission types may include: 3G signal, 1.5G signal; the video signal types may include: 4K video, or HD video; the video bandwidth may include: 12G or 1.5G; the audio channels may include: 1-8 channels or 9-16 channels.
In particular implementations, the signal generating device may include one of: the video system comprises a conversion gateway, a main video server, a standby video server, a main examination video server, a standby examination video server or a multi-picture divider.
In particular, the signal traffic types may include: a master control signal source or a broadcast video server signal source.
S103, addressing the signal stream according to the multicast identification, the signal protocol type, the signal generating equipment and the port and the signal service type of the signal stream.
In specific implementation, addressing a signal stream according to a multicast identifier, a signal protocol type, a signal generating device and a port, and a signal service type of the signal stream may include: determining an addressing format A: b: c: d; the A section is used for filling a multicast identifier; the section B is used for filling in the signal protocol type; the section C is used for filling the signal generating equipment; the section D is used for signal service types; determining numerical values respectively corresponding to the multicast identifier, the signal protocol type, the signal generating equipment and the port of the signal stream and the signal service type according to the predefined corresponding relation; filling the corresponding numerical values into A, B, C, D sections corresponding to the addressing format; an address is obtained.
In specific implementation, the correspondence relationship may include: the A section multicast identifier is 239; when the signal stream is a main signal stream, the first bit of the section B is 1; when the signal stream is a standby signal stream, the first bit of the section B is 2; when the signal flow is a non-compressed 4K video signal, the second and third bits of the B section are 11; when the signal flow is a non-compressed 3G video signal, the second and third bits of the B section are 12; when the signal flow is a non-compressed 1.5G video signal, the second and third bits of the B section are 13; when the signal stream is an audio 1-8 channel signal, the second and third bits of the B section are 21; when the signal stream is an audio 9-16 channel signal, the second and third bits of the B section are 22; when the signal flow is a data signal, the second and third bits of the section B are 30; when the signal stream is uncompressed 4K audio and video, the second and third bits of the B section are 41; and when the signal stream is uncompressed 3G audio and video, the second and third bits of the B segment are 42: when the signal stream is uncompressed 1.5G audio/video, the second and third bits of the B section are 43; when the signal generating port is a main port of the signal generating equipment, the first bit of the section C is 1; when the signal generating port is an equipment standby port, the first bit of the section C is 2; when the signal generating equipment is an IP/SDI conversion gateway 01, the second three bits and the third three bits of the C section are 01; when the signal generating equipment is the IP/SDI conversion gateway 02, the second and third bits of the C section are 02; when the signal generating equipment is a main broadcasting video server, the second three bits of the C section are 11; when the signal generating equipment is a main examination video server, the second three bits and the third three bits of the section C are 12; when the signal generating equipment is a standby broadcasting video server, the second three bits and the third three bits of the C section are 21; when the signal generating equipment is a video server for examination, the second and third positions of the section C are 22; when the signal generating device is an IP multi-picture divider 1, the second three bits of the C section are 31; when the signal generating device is an IP multi-frame splitter 2, the second and third bits of the C section are 32; when the signal service type is a master control signal source, the section D is any numerical value from 01 to 20; when the signal service type is a broadcasting video server signal source, the D section is any one of the values 21-40.
In specific implementation, the correspondence may be stored in the form of a table. A specific example of the correspondence is shown in table 1, it being understood that table 1 is shown for exemplary purposes only and is not intended to limit the scope of the present application.
TABLE 1
In the implementation, after each signal stream is addressed, the obtained addresses may also be stored in the form of a table. One specific example of a stored address is shown in table 2, it being understood that table 2 is shown for exemplary purposes only and is not intended to limit the scope of the present application.
TABLE 2
By adopting the multicast signal addressing method provided by the embodiment of the application, before transmission, the signal stream is addressed according to the multicast identifier, the signal protocol type, the signal generating equipment and port and the signal service type of the signal stream, so that efficient multicast signal transmission is realized.
Further, the embodiment of the application realizes the classification of the multicast signals of different protocols, different bandwidths, different generating devices and different service scenes, designs an IP coding matrix (corresponding relation), can be applied to addressing of uncompressed video and audio multicast, and can also be expanded to addressing of a multicast system with a plurality of protocols, bandwidths, compression and uncompressed mixed existence. The problem of 4K ultra-high-definition system non-compressed video audio multicast IP addressing disorder results in at the complicated maintenance of switch tactics configuration and signal multicast management is solved.
Based on the same inventive concept, the embodiment of the present application further provides a multicast signal transmission method, and as the principle of the transmission method for solving the problem is similar to the addressing method provided in the first embodiment of the present application, the implementation of the transmission method may refer to the implementation of the addressing method, and repeated details are not repeated.
Example two
Fig. 2 is a flowchart illustrating a method for transmitting a multicast signal according to a second embodiment of the present application.
As shown in fig. 2, a multicast signal transmission method according to a second embodiment of the present application includes:
s201, addressing the signal stream by adopting an addressing method.
In specific implementation, reference may be made to implementation of the multicast addressing method in the first embodiment of the present application for implementation of this step, and repeated details are not described again.
And S202, transmitting the signal stream in a multicast mode according to the obtained address.
In specific implementation, the implementation of this step may refer to implementation of a multicast transmission technology in the prior art, which is not described herein again.
By adopting the multicast signal transmission method provided by the embodiment of the application, before transmission, the signal stream is addressed according to the multicast identifier, the signal protocol type, the signal generating equipment and port and the signal service type of the signal stream, so that efficient multicast signal transmission is realized.
Further, the embodiment of the application realizes the classification of the multicast signals of different protocols, different bandwidths, different generating devices and different service scenes, designs an IP coding matrix (corresponding relation), can be applied to addressing of uncompressed video and audio multicast, and can also be expanded to addressing of a multicast system with a plurality of protocols, bandwidths, compression and uncompressed mixed existence. The problem of 4K ultra-high-definition system non-compressed video audio multicast IP addressing disorder results in at the complicated maintenance of switch tactics configuration and signal multicast management is solved.
Based on the same inventive concept, the embodiment of the present application further provides a multicast signal addressing device, and as the principle of the device for solving the problem is similar to the addressing method provided in the embodiment of the present application, the implementation of the device may refer to the implementation of the addressing method, and repeated details are not repeated.
EXAMPLE III
Fig. 3 is a schematic structural diagram of a multicast signal addressing apparatus according to a third embodiment of the present application.
As shown in fig. 3, a multicast signal addressing apparatus 300 according to the third embodiment of the present application includes:
an obtaining unit 301, configured to obtain a signal stream to be transmitted; a determining unit 302, configured to determine a multicast identifier, a signal protocol type, a signal generating device and a port, and a signal service type of a signal stream; an addressing unit 303, configured to address the signal stream according to the multicast identifier, the signal protocol type, the signal generating device and port, and the signal service type of the signal stream.
In specific implementation, the signal protocol type includes a protocol name of a signal stream, a master/slave condition, and one or more of the following: data type, transmission type, video signal type, video bandwidth, or audio channel.
In particular implementations, the protocol name includes a SMPTE2022-6 protocol, a SMPTE2110 protocol, or a SMPTE2059 protocol; the data type includes video data, audio data, auxiliary data, or clock data; the transmission types include: 3G signal, 1.5G signal; the video signal types include: 4K video, or HD video; the video bandwidth comprises: 12G or 1.5G; the audio channels include: 1-8 channels or 9-16 channels.
In particular implementations, the signal generating device includes one of: the video system comprises a conversion gateway, a main video server, a standby video server, a main examination video server, a standby examination video server or a multi-picture divider.
In specific implementation, the signal service types include: a master control signal source or a broadcast video server signal source.
In a specific implementation, the addressing unit includes: a format subunit for determining an addressing format a: b: c: d; the A section is used for filling a multicast identifier; the section B is used for filling in the signal protocol type; the section C is used for filling the signal generating equipment; the section D is used for signal service types; the corresponding subunit is used for determining numerical values respectively corresponding to the multicast identifier, the signal protocol type, the signal generating equipment and the port of the signal stream and the signal service type according to the predefined corresponding relation; filling the corresponding numerical values into A, B, C, D sections corresponding to the addressing format; an address is obtained.
In specific implementation, the correspondence includes: the A section multicast identifier is 239; when the signal stream is a main signal stream, the first bit of the section B is 1; when the signal stream is a standby signal stream, the first bit of the section B is 2; when the signal flow is a non-compressed 4K video signal, the second and third bits of the B section are 11; when the signal flow is a non-compressed 3G video signal, the second and third bits of the B section are 12; when the signal flow is a non-compressed 1.5G video signal, the second and third bits of the B section are 13; when the signal stream is an audio 1-8 channel signal, the second and third bits of the B section are 21; when the signal stream is an audio 9-16 channel signal, the second and third bits of the B section are 22; when the signal flow is a data signal, the second and third bits of the section B are 30; when the signal stream is uncompressed 4K audio and video, the second and third bits of the B section are 41; and when the signal stream is uncompressed 3G audio and video, the second and third bits of the B segment are 42: when the signal stream is uncompressed 1.5G audio/video, the second and third bits of the B section are 43; when the signal generating port is a main port of the signal generating equipment, the first bit of the section C is 1; when the signal generating port is an equipment standby port, the first bit of the section C is 2; when the signal generating equipment is an IP/SDI conversion gateway 01, the second three bits and the third three bits of the C section are 01; when the signal generating equipment is the IP/SDI conversion gateway 02, the second and third bits of the C section are 02; when the signal generating equipment is a main broadcasting video server, the second three bits of the C section are 11; when the signal generating equipment is a main examination video server, the second three bits and the third three bits of the section C are 12; when the signal generating equipment is a standby broadcasting video server, the second three bits and the third three bits of the C section are 21; when the signal generating equipment is a video server for examination, the second and third positions of the section C are 22; when the signal generating device is an IP multi-picture divider 1, the second three bits of the C section are 31; when the signal generating device is an IP multi-frame splitter 2, the second and third bits of the C section are 32; when the signal service type is a master control signal source, the section D is any numerical value from 01 to 20; when the signal service type is a broadcasting video server signal source, the D section is any one of the values 21-40.
By adopting the multicast signal addressing device provided by the embodiment of the application, before transmission, the signal stream is addressed according to the multicast identifier, the signal protocol type, the signal generating equipment and port and the signal service type of the signal stream, so that efficient multicast signal transmission is realized.
Further, the embodiment of the application realizes the classification of the multicast signals of different protocols, different bandwidths, different generating devices and different service scenes, designs an IP coding matrix (corresponding relation), can be applied to addressing of uncompressed video and audio multicast, and can also be expanded to addressing of a multicast system with a plurality of protocols, bandwidths, compression and uncompressed mixed existence. The problem of 4K ultra-high-definition system non-compressed video audio multicast IP addressing disorder results in at the complicated maintenance of switch tactics configuration and signal multicast management is solved.
Based on the same inventive concept, the embodiment of the present application further provides a multicast signal transmission apparatus, and as the principle of the apparatus for solving the problem is similar to the transmission method provided in the second embodiment of the present application, the implementation of the apparatus can refer to the implementation of the transmission method, and repeated details are not repeated.
Example four
Fig. 4 is a schematic structural diagram of a multicast signal transmission apparatus according to a fourth embodiment of the present application.
As shown in fig. 4, a multicast signal transmission apparatus 400 according to a fourth embodiment of the present application includes:
a multicast signal addressing device 300; a transmitting unit 401, configured to transmit the signal stream in a multicast manner according to the obtained address.
By adopting the multicast signal transmission device provided by the embodiment of the application, before transmission, the signal stream is addressed according to the multicast identifier, the signal protocol type, the signal generation equipment and port and the signal service type of the signal stream, so that efficient multicast signal transmission is realized.
Further, the embodiment of the application realizes the classification of the multicast signals of different protocols, different bandwidths, different generating devices and different service scenes, designs an IP coding matrix (corresponding relation), can be applied to addressing of uncompressed video and audio multicast, and can also be expanded to addressing of a multicast system with a plurality of protocols, bandwidths, compression and uncompressed mixed existence. The problem of 4K ultra-high-definition system non-compressed video audio multicast IP addressing disorder results in at the complicated maintenance of switch tactics configuration and signal multicast management is solved.
Based on the same inventive concept, the embodiment of the present application further provides a switch, and as the principle of solving the problem of the switch is similar to the transmission method provided in the first embodiment of the present application, the implementation of the switch may refer to the implementation of the addressing method, and repeated details are not described again.
EXAMPLE five
Fig. 5 shows a schematic structural diagram of a switch according to an embodiment of the present application.
As shown in fig. 5, a switch 500 according to the fifth embodiment of the present application includes: the multicast signal addresses the device 300.
By adopting the switch provided by the embodiment of the application, before transmission, the signal stream is addressed according to the multicast identifier, the signal protocol type, the signal generating equipment and port and the signal service type of the signal stream, so that efficient multicast signal transmission is realized.
Further, the embodiment of the application realizes the classification of the multicast signals of different protocols, different bandwidths, different generating devices and different service scenes, designs an IP coding matrix (corresponding relation), can be applied to addressing of uncompressed video and audio multicast, and can also be expanded to addressing of a multicast system with a plurality of protocols, bandwidths, compression and uncompressed mixed existence. The problem of 4K ultra-high-definition system non-compressed video audio multicast IP addressing disorder results in at the complicated maintenance of switch tactics configuration and signal multicast management is solved.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (17)
1. A method for addressing a multicast signal, comprising:
acquiring a signal stream to be transmitted;
determining a multicast identifier, a signal protocol type, a signal generating device and port and a signal service type of the signal stream;
addressing the signal stream according to the multicast identification, the signal protocol type, the signal generating equipment and the port and the signal service type of the signal stream;
the addressing of the signal stream according to the multicast identifier, the signal protocol type, the signal generating equipment and the port and the signal service type of the signal stream comprises the following steps:
classifying multicast signals of different protocols, different bandwidths, different generating devices and different service scenes, designing an IP coding matrix, and addressing the signal stream according to the IP coding matrix.
2. The method of claim 1, wherein the signal protocol type comprises a protocol name of a signal stream, a master-slave condition, and one or more of: data type, transmission type, video signal type, video bandwidth, or audio channel.
3. The method of claim 2, wherein the protocol name comprises a SMPTE2022-6 protocol, a SMPTE2110 protocol, or a SMPTE2059 protocol; the data type includes video data, audio data, auxiliary data, or clock data; the transmission types include: 3G signal, 1.5G signal; the video signal types include: 4K video, or HD video; the video bandwidth comprises: 12G or 1.5G; the audio channels include: 1-8 channels or 9-16 channels.
4. The method of claim 1, wherein the signal generating device comprises one of: the video system comprises a conversion gateway, a main video server, a standby video server, a main examination video server, a standby examination video server or a multi-picture divider.
5. The method of claim 4, wherein the signal traffic type comprises: a master control signal source or a broadcast video server signal source.
6. The method of claim 1, wherein addressing the signal stream according to a multicast identification, a signal protocol type, a signal generating device and port, and a signal traffic type of the signal stream comprises:
determining an addressing format A: b: c: d; the A section is used for filling a multicast identifier; the section B is used for filling the signal protocol type; the section C is used for filling the signal generating equipment; the section D is used for signal service types;
determining numerical values respectively corresponding to the multicast identifier, the signal protocol type, the signal generating equipment and the port of the signal stream and the signal service type according to the predefined corresponding relation;
filling the corresponding numerical values into A, B, C, D sections corresponding to the addressing format; an address is obtained.
7. The method of claim 6, wherein the correspondence comprises:
the A section multicast identifier is 239;
when the signal stream is a main signal stream, the first bit of the section B is 1; when the signal stream is a standby signal stream, the first bit of the section B is 2;
when the signal stream is a non-compressed 4K video signal, the second and third bits of the B section are 11; when the signal stream is a non-compressed 3G video signal, the second and third bits of the B section are 12; when the signal stream is a non-compressed 1.5G video signal, the second and third bits of the B section are 13; when the signal stream is an audio 1-8 channel signal, the second and third bits of the B section are 21; when the signal stream is an audio 9-16 channel signal, the second and third bits of the B section are 22; when the signal flow is a data signal, the second and third bits of the section B are 30; when the signal stream is uncompressed 4K audio and video, the second and third bits of the B section are 41; when the signal stream is uncompressed 3G audio/video, the second and third bits of the B section are 42, and when the signal stream is uncompressed 1.5G audio/video, the second and third bits of the B section are 43;
when the signal generating port is a main port of the signal generating equipment, the first bit of the section C is 1; when the signal generating port is an equipment standby port, the first bit of the section C is 2;
when the signal generating equipment is an IP/SDI conversion gateway 01, the second three bits and the third three bits of the C section are 01; when the signal generating equipment is the IP/SDI conversion gateway 02, the second and third bits of the C section are 02; when the signal generating equipment is a main broadcasting video server, the second three bits of the C section are 11; when the signal generating equipment is a main examination video server, the second three bits and the third three bits of the section C are 12; when the signal generating equipment is a standby broadcasting video server, the second three bits and the third three bits of the C section are 21; when the signal generating equipment is a video server for examination, the second and third positions of the section C are 22; when the signal generating device is an IP multi-picture divider 1, the second three bits of the C section are 31; when the signal generating device is an IP multi-frame splitter 2, the second and third bits of the C section are 32;
when the signal service type is a master control signal source, the section D is any numerical value from 01 to 20; when the signal service type is a broadcasting video server signal source, the D section is any one of the values 21-40.
8. A method of multicast signal transmission, comprising:
addressing the signal stream using an addressing method according to any of claims 1-7;
and transmitting the signal stream in a multicast mode according to the obtained address.
9. A multicast signal addressing apparatus, comprising:
the device comprises an acquisition unit, a transmission unit and a transmission unit, wherein the acquisition unit is used for acquiring a signal stream to be transmitted;
a determining unit, configured to determine a multicast identifier, a signal protocol type, a signal generating device and a port, and a signal service type of the signal stream;
an addressing unit for addressing the signal stream according to the multicast identifier, the signal protocol type, the signal generating device and port, and the signal service type of the signal stream;
the addressing of the signal stream according to the multicast identifier, the signal protocol type, the signal generating equipment and the port and the signal service type of the signal stream comprises the following steps:
classifying multicast signals of different protocols, different bandwidths, different generating devices and different service scenes, designing an IP coding matrix, and addressing the signal stream according to the IP coding matrix.
10. The apparatus of claim 9, wherein the signal protocol type comprises a protocol name of a signal stream, a master-slave condition, and one or more of the following: data type, transmission type, video signal type, video bandwidth, or audio channel.
11. The apparatus of claim 10, wherein the protocol name comprises a SMPTE2022-6 protocol, a SMPTE2110 protocol, or a SMPTE2059 protocol; the data type includes video data, audio data, auxiliary data, or clock data; the transmission types include: 3G signal, 1.5G signal; the video signal types include: 4K video, or HD video; the video bandwidth comprises: 12G or 1.5G; the audio channels include: 1-8 channels or 9-16 channels.
12. The apparatus of claim 9, wherein the signal generating device comprises one of: the video system comprises a conversion gateway, a main video server, a standby video server, a main examination video server, a standby examination video server or a multi-picture divider.
13. The apparatus of claim 12, wherein the signal traffic type comprises: a master control signal source or a broadcast video server signal source.
14. The apparatus of claim 9, wherein the addressing unit comprises:
a format subunit for determining an addressing format a: b: c: d; the A section is used for filling a multicast identifier; the section B is used for filling the signal protocol type; the section C is used for filling the signal generating equipment; the section D is used for signal service types;
a corresponding subunit, configured to determine, according to a predefined corresponding relationship, respective corresponding values of a multicast identifier, a signal protocol type, a signal generating device and a port of the signal stream, and a signal service type;
filling the corresponding numerical values into A, B, C, D sections corresponding to the addressing format; an address is obtained.
15. The apparatus of claim 14, wherein the correspondence comprises:
the A section multicast identifier is 239;
when the signal stream is a main signal stream, the first bit of the section B is 1; when the signal stream is a standby signal stream, the first bit of the section B is 2;
when the signal stream is a non-compressed 4K video signal, the second and third bits of the B section are 11; when the signal stream is a non-compressed 3G video signal, the second and third bits of the B section are 12; when the signal stream is a non-compressed 1.5G video signal, the second and third bits of the B section are 13; when the signal stream is an audio 1-8 channel signal, the second and third bits of the B section are 21; when the signal stream is an audio 9-16 channel signal, the second and third bits of the B section are 22; when the signal flow is a data signal, the second and third bits of the section B are 30; when the signal stream is uncompressed 4K audio and video, the second and third bits of the B section are 41; when the signal stream is uncompressed 3G audio/video, the second and third bits of the B section are 42, and when the signal stream is uncompressed 1.5G audio/video, the second and third bits of the B section are 43;
when the signal generating port is a main port of the signal generating equipment, the first bit of the section C is 1; when the signal generating port is an equipment standby port, the first bit of the section C is 2;
when the signal generating equipment is an IP/SDI conversion gateway 01, the second three bits and the third three bits of the C section are 01; when the signal generating equipment is the IP/SDI conversion gateway 02, the second and third bits of the C section are 02; when the signal generating equipment is a main broadcasting video server, the second three bits of the C section are 11; when the signal generating equipment is a main examination video server, the second three bits and the third three bits of the section C are 12; when the signal generating equipment is a standby broadcasting video server, the second three bits and the third three bits of the C section are 21; when the signal generating equipment is a video server for examination, the second and third positions of the section C are 22; when the signal generating device is an IP multi-picture divider 1, the second three bits of the C section are 31; when the signal generating device is an IP multi-frame splitter 2, the second and third bits of the C section are 32;
when the signal service type is a master control signal source, the section D is any numerical value from 01 to 20; when the signal service type is a broadcasting video server signal source, the D section is any one of the values 21-40.
16. A multicast signal transmission apparatus, comprising:
the multicast signal addressing apparatus of any of claims 9-15;
and the transmission unit is used for transmitting the signal stream in a multicast mode according to the obtained address.
17. A switch, comprising: a multicast signal addressing apparatus as claimed in any one of claims 9 to 15.
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