CN103096123A - 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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- CN103096123A CN103096123A CN201310041798XA CN201310041798A CN103096123A CN 103096123 A CN103096123 A CN 103096123A CN 201310041798X A CN201310041798X A CN 201310041798XA CN 201310041798 A CN201310041798 A CN 201310041798A CN 103096123 A CN103096123 A CN 103096123A
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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 the CMMB multiplexer.
Background technology
In the CMMB technical field, existing multiplexer, GY/T220.8-2008 " Mobile Multimedia Broadcasting the 8th part: multiplexer specification requirement and the method for measurement " standard of substantially issuing according to country.And according to standard-required, existing multiplexer adopts ASI interface (Asynchronous Serial Interface mostly, Asynchronous Serial Interface) output PMS stream (Packaged Multiplexing Stream, packaging multiplexing code stream) data, ASI interface connecting coaxial cable transmits, as wired connection, when distance is long, will produce the problem of error code.At some in particular cases, multiplex stream need to be grown Distance Transmission, will certainly affect transmission quality and raise the cost.Therefore, produced a kind of novel C MMB multiplexer, its newly-increased Ethernet output interface is exported the multiplexed frame that is encapsulated as PMS stream with the UDP packet format, can greatly increase the transmission range of PMS stream, makes multiplexer can adapt to operational environment more widely.This novel C MMB multiplexer practical, and at present also not in the industry extensive use, therefore this class multiplexer being tested is necessary with the integrality of the PMS stream in the UDP bag of verifying its Ethernet output interface output.
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 the CMMB multiplexer, is used for solving the problem of integrality of PMS stream of UDP bag of the Ethernet output interface output of test CMMB multiplexer.
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 the 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, is used for to described CMMB multiplexer transmission measurement code stream;
Described IP-ASI equipment, it is connected with described CMMB multiplexer, and disposes IP input interface and ASI output interface, for the UDP bag of the Ethernet output interface output that receives described CMMB multiplexer, and parse PMS stream from the UDP bag, then send PMS stream by the ASI output interface;
Described Transport Stream Analyzer, it is used for receiving the PMS stream that described IP-ASI equipment sends, and it is carried out code stream analysis.
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 transmission comprise look the audio service data, look the audio service data, 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 to PMS stream carry 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 the CMMB multiplexer, comprises;
Step 1 is to the corresponding code stream of measuring of described CMMB multiplexer transmission;
Step 2, configure the IP-ASI equipment that IP input interface and ASI output interface are arranged, it is connected with the Ethernet output interface of described CMMB multiplexer, receive the UDP bag of its output, and parse PMS stream from the UDP bag, then send PMS stream by the ASI output interface;
On the basis of technique scheme, also done following improvement.
Further, the measurement code stream that transmits in described step 1 comprises looks audio service data, urgent broadcast table, the basic description list of ESG, ESG data message and/or program prompt information.
Further, specifically comprise in described step 3: to PMS stream carry out in real time, the code stream analysis of off-line.
The invention has the beneficial effects as follows: the present invention detects PMS stream in the UDP bag of the Ethernet output interface output of CMMB multiplexer, guarantee the integrality of the PMS stream of its output, conveniently according to test result, the 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.
Description of drawings
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 of each label representative is as follows:
1, test macro, 2, measure the code stream module, 3, IP-ASI equipment, 4, Transport Stream Analyzer, 5, the CMMB multiplexer.
Embodiment
Below in conjunction with accompanying drawing, principle of the present invention and feature are described, example only is used for explaining the present invention, is not be used to limiting scope of the present invention.
The present embodiment has provided a kind of CMMB multiplexer, and it adopts Ethernet interface output, and the multiplexed frame that is encapsulated as PMS stream is exported by Ethernet interface with the UDP packet format.
As shown in Figure 1, the present embodiment has designed a cover test macro 1 for the above-mentioned CMMB multiplexer based on the Ethernet output interface, 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, is used for to described CMMB multiplexer 5 transmission measurement code streams.Here, measure contain the measurement code stream that multichannel look audio service data, urgent broadcast table, ESG basic description list, ESG data message and program prompt information of code stream for producing 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, UDP bag for the Ethernet output interface output that receives described CMMB multiplexer 5, and parse PMS stream from the UDP bag, then send PMS stream by the ASI output interface.Here, can adopt the Gateway8050 equipment of digital video signal production as IP-ASI equipment.
Described Transport Stream Analyzer 4, it is used for receiving the PMS stream that described IP-ASI equipment 3 sends, and to its advance in real time, the code stream analysis of off-line.
As shown in Figure 2, adopt the test macro of the present embodiment, the present embodiment has provided a kind of method of testing of the Ethernet output interface for the CMMB multiplexer accordingly, comprising:
Step 1 is to the corresponding code stream of measuring of described CMMB multiplexer transmission;
Step 2, configure the IP-ASI equipment that IP input interface and ASI output interface are arranged, it is connected with the Ethernet output interface of described CMMB multiplexer, receive the UDP bag of its output, and parse PMS stream from the UDP bag, then send PMS stream by the ASI output interface;
Similarly, the measurement code stream of transmission comprises looks audio service data, urgent broadcast table, the basic description list of ESG, ESG data message and/or program prompt information, and is code stream analysis real-time, off-line to the code stream analysis of PMS stream.
The above is only preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. the test macro for the Ethernet output interface of CMMB multiplexer, is characterized in that, comprises measuring code stream module, IP-ASI equipment and Transport Stream Analyzer;
Described measurement code stream module, it is connected with described CMMB multiplexer, is used for to described CMMB multiplexer transmission measurement code stream;
Described IP-ASI equipment, it is connected with described CMMB multiplexer, and disposes IP input interface and ASI output interface, for the UDP bag of the Ethernet output interface output that receives described CMMB multiplexer, and parse PMS stream from the UDP bag, then send PMS stream by the ASI output interface;
Described Transport Stream Analyzer, it is used for receiving the PMS stream that described IP-ASI equipment sends, and it is carried out code stream analysis.
2. test macro according to claim 1, is characterized in that, the measurement code stream of described measurement code stream module transmission comprises looks audio service data, urgent broadcast table, the basic description list of ESG, ESG data message and/or program prompt information.
3. test macro according to claim 1, is characterized in that, described Transport Stream Analyzer to PMS stream carry out in real time, the code stream analysis of off-line.
4. the method for testing for the Ethernet output interface of CMMB multiplexer, is characterized in that, comprises;
Step 1 is to the corresponding code stream of measuring of described CMMB multiplexer transmission;
Step 2, configure the IP-ASI equipment that IP input interface and ASI output interface are arranged, it is connected with the Ethernet output interface of described CMMB multiplexer, receive the UDP bag of its output, and parse PMS stream from the UDP bag, then send PMS stream by the ASI output interface;
Step 3, the PMS stream that described IP-ASI equipment is sent carries out code stream analysis.
5. method of testing according to claim 4, is characterized in that, the measurement code stream that transmits in described step 1 comprises looks audio service data, urgent broadcast table, the basic description list of ESG, ESG data message and/or program prompt information.
6. method of testing according to claim 4, is characterized in that, specifically comprises in described step 3: to PMS stream carry out in real time, 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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