CN103096123B - Testing system and testing method of Ethernet output interface of China mobile multimedia broadcasting (CMMB) multiplexer - Google Patents
Testing system and testing method of Ethernet output interface of China mobile multimedia broadcasting (CMMB) multiplexer Download PDFInfo
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- CN103096123B CN103096123B CN201310041798.XA CN201310041798A CN103096123B CN 103096123 B CN103096123 B CN 103096123B CN 201310041798 A CN201310041798 A CN 201310041798A CN 103096123 B CN103096123 B CN 103096123B
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Abstract
The invention relates to a testing system of an Ethernet output interface of a China mobile multimedia broadcasting (CMMB) multiplexer. The testing system comprises a measuring code stream module, internet protocol (IP)-ASI equipment and a code stream analyzer, wherein the measuring code stream module is connected with the CMMB multiplexer and transmits measuring code steams to the CMMB multiplexer, the IP-ASI equipment is connected with the CMMB multiplexer, is provided with an IP input interface and an ASI output interface, receives user datagram protocol (UDP) packages output by the Ethernet output interface of the CMMB multiplexer, analyzes PMS streams from the UDP packages, and transmits the PMS streams through the ASI output interface, and the code stream analyzer receives the PMS streams transmitted by the IP-ASI equipment, and analyzes the code streams of the PMS streams. Further, the invention provides a corresponding testing method. The testing system and the testing method detect completeness of the PMS streams in the UDP packages output by the Ethernet output interface of the CMMB multiplexer, and are favorable to popularization and application of the novel CMMB multiplexer.
Description
Technical field
The present invention relates to CMMB (China Mobile Multimedia Broadcasting, China Mobile multimedia broadcasting) technical field, particularly relate to a kind of test macro of the Ethernet output interface for CMMB multiplexer.
Background technology
In CMMB technical field, existing multiplexer, substantially according to GY/T220.8-2008 " Mobile Multimedia Broadcasting the 8th part: multiplexer technical requirement and the method for measurement " standard that country issues.And according to standard-required, existing multiplexer adopts ASI interface (Asynchronous Serial Interface mostly, Asynchronous Serial Interface) export PMS stream (Packaged Multiplexing Stream, packaging multiplexing code stream) data, ASI interface connecting coaxial cable transmits, as wired connection, when apart from time long, the problem of error code will be produced.At some in particular cases, need multiplex stream to carry out long range propagation, transmission quality will certainly be affected and raise the cost.Therefore, create a kind of novel C MMB multiplexer, its newly-increased Ethernet output interface, the multiplexed frame being encapsulated as PMS stream is exported with UDP packet format, greatly can increase the transmission range of PMS stream, make multiplexer can adapt to operational environment more widely.This novel C MMB multiplexer practical, and at present also not in industry extensive use, therefore this kind of multiplexer is tested, be necessary with the integrality that the PMS verified in the UDP bag that its Ethernet output interface exports flows.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of test macro of the Ethernet output interface for CMMB multiplexer, the problem of the integrality of the PMS stream in the UDP bag that the Ethernet output interface for solving test CMMB multiplexer exports.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of test macro of the Ethernet output interface for CMMB multiplexer, comprises and measures code stream module, IP-ASI equipment and Transport Stream Analyzer;
Described measurement code stream module, it is connected with described CMMB multiplexer, for described CMMB multiplexer transmission measurement code stream;
Described IP-ASI equipment, it is connected with described CMMB multiplexer, and is configured with IP input interface and ASI output interface, the UDP bag that the Ethernet output interface for receiving described CMMB multiplexer exports, and parse PMS stream from UDP bag, then send PMS stream by ASI output interface;
Described Transport Stream Analyzer, its PMS stream sent for receiving described IP-ASI equipment, and code stream analysis is carried out to it.
On the basis of technique scheme, the present invention can also do following improvement.
Further, the measurement code stream of described measurement code stream module transfer comprises video and audio business datum, video and audio business datum, urgent broadcast table, ESG(Electronic Service Guide, electron service instruction) basic description list, ESG data message and/or program prompt information.
Further, described Transport Stream Analyzer PMS stream is carried out in real time, the code stream analysis of off-line.
Accordingly, technical scheme of the present invention also comprises a kind of method of testing of the Ethernet output interface for CMMB multiplexer, comprises;
Step 1, measures code stream accordingly to described CMMB multiplexer transmission;
Step 2, configure the IP-ASI equipment that one has IP input interface and ASI output interface, its Ethernet output interface with described CMMB multiplexer is connected, receive UDP bag that it exports, and parse PMS stream from UDP bag, then send PMS stream by ASI output interface;
Step 3, carries out code stream analysis to the PMS stream that described IP-ASI equipment sends.
On the basis of technique scheme, have also been made following improvement.
Further, in described step 1, the measurement code stream of transmission comprises video and audio business datum, urgent broadcast table, the basic description list of ESG, ESG data message and/or program prompt information.
Further, specifically comprise in described step 3: PMS stream to be carried out in real time, the code stream analysis of off-line.
The invention has the beneficial effects as follows: during the present invention wraps the UDP that the Ethernet output interface of CMMB multiplexer exports, PMS stream detects, guarantee the integrality of its PMS stream exported, conveniently according to test result, CMMB multiplexer is regulated, be conducive to applying of this novel C MMB multiplexer, and this test macro is installed simple and easy, easy to operate.
Accompanying drawing explanation
Fig. 1 is the structural representation of test macro of the present invention.
Fig. 2 is the schematic flow sheet of method of testing of the present invention.
In accompanying drawing, the list of parts representated by each label is as follows:
1, test macro, 2, measure code stream module, 3, IP-ASI equipment, 4, Transport Stream Analyzer, 5, CMMB multiplexer.
Embodiment
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
This gives a kind of CMMB multiplexer, it adopts Ethernet interface to export, and is exported by the multiplexed frame being encapsulated as PMS stream with UDP packet format by Ethernet interface.
As shown in Figure 1, the present embodiment, for the above-mentioned CMMB multiplexer based on Ethernet output interface, devises a set of test macro 1, and this test macro 1 comprises measures code stream module 2, IP-ASI equipment 3 and Transport Stream Analyzer 4;
Described measurement code stream module 2 is connected with the input of described CMMB multiplexer 5, for described CMMB multiplexer 5 transmission measurement code stream.Here, measuring code stream is the measurement code stream containing multichannel video and audio business datum, urgent broadcast table, the basic description list of ESG, ESG data message and program prompt information produced with encoder, urgent broadcast generator, ESG generator.
Described IP-ASI equipment 3 is connected with the Ethernet output interface of described CMMB multiplexer 5, and described IP-ASI equipment 3 is configured to IP input and ASI output mode, for the UDP bag that the Ethernet output interface receiving described CMMB multiplexer 5 exports, and parse PMS stream from UDP bag, then send PMS stream by ASI output interface.Here, the Gateway8050 equipment that digital video signal can be adopted to produce is as IP-ASI equipment.
Described Transport Stream Analyzer 4, it for receiving the PMS stream of described IP-ASI equipment 3 transmission, and enters in real time it, the code stream analysis of off-line.
As shown in Figure 2, adopt the test macro of the present embodiment, the present embodiment gives a kind of method of testing of the Ethernet output interface for CMMB multiplexer accordingly, comprising:
Step 1, measures code stream accordingly to described CMMB multiplexer transmission;
Step 2, configure the IP-ASI equipment that one has IP input interface and ASI output interface, its Ethernet output interface with described CMMB multiplexer is connected, receive UDP bag that it exports, and parse PMS stream from UDP bag, then send PMS stream by ASI output interface;
Step 3, carries out code stream analysis to the PMS stream that described IP-ASI equipment sends.
Similarly, the measurement code stream of transmission comprises video and audio business datum, urgent broadcast table, the basic description list of ESG, ESG data message and/or program prompt information, and is code stream analysis that is real-time, off-line to the code stream analysis of PMS stream.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. for a test macro for the Ethernet output interface of CMMB multiplexer, it is characterized in that, comprise and measure code stream module, IP-ASI equipment and Transport Stream Analyzer;
Described measurement code stream module, it is connected with described CMMB multiplexer inputs, for described CMMB multiplexer transmission measurement code stream;
Described IP-ASI equipment, it is connected with described CMMB multiplexer, and is configured with IP input interface and ASI output interface, the UDP bag that the Ethernet output interface for receiving described CMMB multiplexer exports, and parse PMS stream from UDP bag, then send PMS stream by ASI output interface;
Described Transport Stream Analyzer, it for receiving the PMS stream of described IP-ASI equipment transmission, and carries out in real time it, the code stream analysis of off-line.
2. test macro according to claim 1, is characterized in that, the measurement code stream of described measurement code stream module transfer comprises video and audio business datum, urgent broadcast table, the basic description list of ESG, ESG data message and/or program prompt information.
3., for a method of testing for the Ethernet output interface of CMMB multiplexer, it is characterized in that, comprise;
Step 1, measures code stream accordingly to described CMMB multiplexer transmission;
Step 2, configure the IP-ASI equipment that one has IP input interface and ASI output interface, its Ethernet output interface with described CMMB multiplexer is connected, receive UDP bag that it exports, and parse PMS stream from UDP bag, then send PMS stream by ASI output interface;
Step 3, carries out code stream analysis to the PMS stream that described IP-ASI equipment sends.
4. method of testing according to claim 3, is characterized in that, in described step 1, the measurement code stream of transmission comprises video and audio business datum, urgent broadcast table, the basic description list of ESG, ESG data message and/or program prompt information.
5. method of testing according to claim 3, is characterized in that, specifically comprises in described step 3: carry out in real time PMS stream, the code stream analysis of off-line.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1753507A (en) * | 2005-08-25 | 2006-03-29 | 深圳创维－Rgb电子有限公司 | Adjusting and testing method of embedded type set top box |
| CN101959062A (en) * | 2010-05-13 | 2011-01-26 | 北京创毅视讯科技有限公司 | Data transmission method, system and device for China mobile multimedia broadcasting (CMMB) system |
| CN102098541A (en) * | 2010-12-11 | 2011-06-15 | 福州大学 | Code stream multiplexer constituting device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1753507A (en) * | 2005-08-25 | 2006-03-29 | 深圳创维－Rgb电子有限公司 | Adjusting and testing method of embedded type set top box |
| CN101959062A (en) * | 2010-05-13 | 2011-01-26 | 北京创毅视讯科技有限公司 | Data transmission method, system and device for China mobile multimedia broadcasting (CMMB) system |
| CN102098541A (en) * | 2010-12-11 | 2011-06-15 | 福州大学 | Code stream multiplexer constituting device |
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