CN102790904A - Integrated multi-picture digital video monitoring method and system - Google Patents
Integrated multi-picture digital video monitoring method and system Download PDFInfo
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Abstract
The invention provides an integrated multi-picture digital video monitoring method and system. The method comprises the following steps of: firstly, receiving one or more digital television signals with the same or different forms; decoding video and audio programs in a plurality of the digital television signals; carrying out comprehensive transmission flow analysis on the digital television signals and verifying whether a transmission flow accords with a suitable standard or not; then, displaying the content of a plurality of decoded videos, and an electric level and an audio volume of an audio sound track corresponding to each video on one or more computer displays or televisions; and displaying analyzed and verified results to a user through operating application programs on the same monitoring system or on different computers connected with the monitoring system through an IP(Internet Protocol) network. The integrated multi-picture digital video monitoring method and system disclosed by the invention have the advantages that only one system needs to be purchased, and multi-picture display, audio volume monitoring and transmission flow analysis functions can be finished; and a great amount of investment capital and a rack space can be saved.
Description
Technical field
The present invention relates to monitoring technical field, specifically is a kind of video monitoring method and system.
Background technology
Digital video services relates to complicated numerical data and handles and transmission technology.When service provider when the consumer provides digital video services; Digital signal can be passed through a plurality of treatment systems and transmission network usually; The step of these processing and transmission possibly introduced mistake in signal; And the reduction signal quality, therefore, service provider is necessary that the key point on signal path carries out the monitoring of signal quality.In order to increase customer satisfaction degree to greatest extent and to control the customer service cost, the service provider must set up a network infrastructure highly reliably, to reduce the quantity of the problem that can take place.A very important part is the service that helping service provider keeps watch on them energetically in the infrastructure, in time finds and any potential problem of quick solution.
The service provider utilizes two kinds of strategies to monitor digital video services usually:
The one, by the continuous decoding video; And on television set or many pictures display screen display of video content; This method is applicable to analog video; But it is used in digital video services and detects upward also not exclusively reliable; Numeral audio/video Code And Decode; Because relate to complicated software; If the data transformation of input meets standard; The Digital Media that decoder can be decoded is not equal to other decoder and can decodes; In addition; The image display method that this strategy uses needs the existence of manual operation, and therefore, it is not suitable for the remote monitoring to unattended station;
Since before a kind of limitation of strategy; Whether standard compliant strategy is used by people gradually through the test MPTS; Yet the limitation of this strategy is to have much more unlimited parameter can influence the Video service quality in the MPTS, and a part seldom can only be measured in these parameters by system; Though European Broadcasting Union and ATSC have issued MPTS test guide; This document has defined needs the parameter of test and their relative importance in the MPTS, but and does not mean that these parameters can detect all potential quality problems, the especially problem in compression layer in the MPTS fully.
The desirable method of complete monitoring MPTS is that video shows and the MPTS analysis combines.Yet, traditionally these two kinds of methods need use two kinds independently system accomplish.Before a kind of method can carry out vision-based detection with general television set or many image display systems, another kind of method then is to utilize the MPTS analyzer to analyze whether conformance with standard of MPTS.The input of many view displays possibly be a baseband signal, therefore, needs independent decoding unit earlier the transmission stream signal of compression to be decoded, and more decoded data is input to display device.Buy and operate these independently systems, risk capital and rack space that cost is a large amount of.
Summary of the invention
The technical problem that the present invention will solve provides a kind of integrated many pictures digital video monitoring method and system, can be integrated in a single hardware platform to many pictures demonstrations, audio loudness monitoring and MPTS analytic function.
The invention provides a kind of integrated many pictures digital video monitoring method, comprise the steps:
Step 1, at first receive the identical or different digital television signal of one or more standard;
Video and audio program in step 2, a plurality of digital television signals of decoding in the time of the decoded digital TV signal, also carry out comprehensive MPTS analysis and verify whether MPTS meets suitable standard digital television signal;
Step 3, on one or more computer display or television set, show a plurality of video contents that decoding is later and the level and the audio loudness of each video corresponding audio sound channel;
Checking result in step 4, the step 2 through the application program displays on the various computing machine that operates in same monitoring system or link to each other with monitoring system through IP network to the user.
The present invention can further be optimized for: said step 2 specifically comprises following substep:
Step 22, digital television signal is divided into different elementary streams group and data set according to the ID of the packet of digital television signal;
Step 24, in the MPTS with metadata decoding, with the programme information that obtains to be comprised in the MPTS, use the testing standard and the user-defined test threshold values that are suitable for the mistake of metadata to be carried out various tests in the time of decoding with configuration;
Step 26, accomplish the metadata decoding and obtain programme information after, the audio frequency and video of digital television signal are flowed basically decode and analyze.
The present invention can further be optimized for: in the said step 2, also comprise the step of the error logging that authenticates in the MPTS in database, for from now on examination and analysis provides the data foundation.
The present invention can further be optimized for: in the said step 2; Also comprise following content: at first let the user in all possible error condition, select to hope to send the mistake of reporting to the police; And user's the selection form with tabulation is kept in the database, when MPTS makes a mistake, this mistake will be compared with user's wrong choice tabulation; If it is included in the tabulation, will send warning.
The present invention can further be optimized for: the demonstration in the said step 4 is the error condition that shows MPTS according to the seriousness of MPTS mistake with the various colors mark.
The present invention also provides a kind of integrated many picture numeral video frequency monitoring systems, comprising:
Interface module is used to receive the identical or different digital television signal of one or more standard;
Data processing module, the video and the audio program of a plurality of digital television signals that are used for decoding, and digital television signal carried out comprehensive MPTS analysis and whether the checking MPTS meets suitable standard;
Video player module is used on one or more computer display or television set, showing the decode later a plurality of video contents and the level and the audio loudness of each video corresponding audio sound channel;
The result view module is used for the checking result through the application program displays on the various computing machine that operates in same monitoring system or link to each other with monitoring system through IP network to the user.
The present invention can further be optimized for: said data processing module further comprises:
PID shunts submodule, is used for according to the ID of the packet of digital television signal digital television signal being divided into different elementary streams group and data set;
Metadata decoding and analysis submodule 202; Be used for to MPTS with metadata decoding; With the programme information that obtains to be comprised in the MPTS, use the testing standard and the user-defined test threshold values that are suitable for the mistake of metadata to be carried out various tests in the time of decoding with configuration;
Program decoding and analyze submodule is used for after accomplishing the metadata decoding and obtaining programme information, the audio frequency and video of digital television signal is flowed basically decode and analyze.
The present invention can further be optimized for: said integrated many picture numeral video frequency monitoring systems also comprise the error reporting submodule, and all PID shunt submodules, metadata decoding and analysis submodule and program decoding and the detected mistake of analysis submodule and are sent to the error reporting submodule.
The present invention can further be optimized for: said integrated many picture numeral video frequency monitoring systems also comprise database; The error reporting submodule is classified to mistake according to test defined error severity of guide or priority; All detected mistakes are recorded in the database after all passing through the classification of error reporting submodule, so that further check and analyze.
The present invention can further be optimized for: said video player module comprises: a plurality of Video Decoders, video display sub-module, a plurality of audio decoder, the audio frequency display sub-module that is used to calculate the voice data analysis submodule of loudness and is used to show audio track PCM level and audio loudness value; In addition, video player module also comprises the MPTS mistake summary submodule and the error condition display sub-module of the real-time error condition that shows overall transfer stream.
The present invention can further be optimized for: said result view module comprises one and is connected to remote interface submodule, thumbnail submodule, the PID of treatment system and flows bit rate submodule, program analysis result submodule, metadata table analysis result submodule, EPG submodule, historical test result submodule, test configurations submodule, alarm configuration submodule basically, said result view module may operate at same monitoring system (local result view module) or the various computing machine that links to each other with monitoring system through IP network on (remote results views module);
The remote interface submodule is used for obtaining the analysis result on same computer or various computing machine; The test result of obtaining can be distributed to other submodule in the result view module; The thumbnail submodule shows key frame of video and the audio frequency PCM value of extracting; PID shows all PID and their bit rate with basic stream bit rate submodule; Program analysis result submodule shows all analysis results relevant with program, comprises the operating position of PCR and basic stream damper, and metadata table analysis result submodule shows all test results relevant with metadata table; The information on services structure electric program guide of EPG submodule utilization decoding; Historical test result submodule provides the user interface that the result who preserves in the database is retrieved and inquires about, and the test configurations submodule is used to create the MPTS masterplate and defines transport stream structure, and the alarm configuration submodule is used for mistake is reported to the police.
The advantage of the integrated many picture numeral video frequency monitoring systems of the present invention is:
1, is integrated in a single hardware platform to many pictures demonstrations, audio loudness monitoring and MPTS analytic function; Only need to buy a system; Both can accomplish many pictures demonstrations, audio loudness monitoring and MPTS analytic function, save a large amount of risk capital and rack space;
2, this system comprises multiple input interface, is used to receive the digital video signal of different systems, and a plurality of signals are analyzed simultaneously;
3, decode a plurality of videos and audio program of decode system module, and on one or more computer display or television set, show the level and the audio loudness of a plurality of video contents and each video corresponding audio sound channel;
4, this system also carries out comprehensive MPTS analysis and verifies whether MPTS meets suitable standard; Like mpeg standard, ATSC standard, European Broadcasting Union and other regional broadcast standards, test result can be through the application program displays on the various computing machine that operates in same monitoring system or link to each other with monitoring system through IP network to the user;
5, system with detected error logging in the MPTS in database, for from now on examination and analysis provides the data foundation;
6, in addition, this system can allow the user to be provided with when specific mistake takes place and send alarm through Email or SMS to the technical staff;
7, the error condition that shows MPTS on the vedio display board according to the seriousness of MPTS mistake with the various colors mark.
Description of drawings
Fig. 1 is the theory diagram of the integrated many picture numeral video frequency monitoring systems of the present invention.
Fig. 2 is the theory diagram of the data processing module in the integrated many picture numeral video frequency monitoring systems of the present invention.
Fig. 3 is the theory diagram of the video player module of the integrated many picture numeral video frequency monitoring systems of the present invention.
Fig. 4 is the theory diagram of the test result display module of the integrated many picture numeral video frequency monitoring systems of the present invention.
Embodiment
In this article, " assembly ", " module ", " system ", " server ", " interface " and similar noun are meant the entity relevant with computer, possibly be hardware or software or firmware.
See also shown in Figure 1; Fig. 1 is the theory diagram of the integrated many picture numeral video frequency monitoring systems of the present invention; In typical an embodiment, these integrated many picture numeral video frequency monitoring systems comprise interface module 101, data processing module 102, video player module 103, result view module 104.
-after interface module 101 obtained digital television signal, this digital television signal was a kind of analog or digital electronic signal.Interface module 101 converts this electronic signal to numerical data, and sends to data processing module 102 as input.It is a kind of standard techniques that digital video signal receives, and no matter is as the digital video signal receiving equipment of the form of the form of complete separate unit or computer module, can on market, obtain.Because comprise lot of data in digital video and the audio frequency, general data can be compressed earlier and encode, again through the wide area network transmission.Various video and audio compression coding method are arranged, and therefore, the data standard of input also can change.For example, can compress video data and encode according to these standards: MPEG-1, MPEG-2 and MPEG-4 advanced video coding (AVC), VC-1, AVS standard.Equally can according to these standards: MP3, MPEG-2 audio frequency, Advanced Audio Coding (AAC), AAC+, AC-3 etc. compresses voice data and encode.More than listed coding standard do not comprise all videos and audio compression method.
The video and the voice data of compression are divided into a series of packet earlier, and packet is modulated into electronic signal and on physical network, transmits then.Moving Picture Experts Group-2 has defined a kind of media data commonly used packing and transmission means, and the data flow that this mode produces just is called the MEPG MPTS.Yet, also have packing and the transmission means that more can be used for video and voice data in addition.For example, RTP (RTP) is often used in through the IP network media data.In addition, media data can carry out multi-level packing, and each level uses different packing data methods.For example, the data of in IP network, transmitting, media data at first is packaged into the MPEG transmits data packets of regular length; A plurality of MPEG packages lump together; And be packaged into UDP (UDP) packet, and encapsulate with a UDP heading, last; Before the IP network transmission, the UDP message bag may further be packaged into the IP packet.
Each IP packet comprises data or other information of partial video or audio frame, as: electronic program guides, metadata.Each IP packet is discerned through packet ID (PID), and the bag with identical PID comprises with a kind of video, audio frequency and data element.
A single MPTS can comprise a plurality of videos or audio program.For decoded video and audio program, data processing module 102 need be shunted MPTS according to PID.Next, metadata in the MPTS need found out and decode to data processing module 102 so that find video and audio frequency PID in programme information and this program.Mpeg standard provides the method for decoding MPEG metadata.
After the metadata decoding, application program just can flow different videos and audio frequency basically and be associated with in the audio/video program.The data that belong to same program can be transferred into video player module 103 and decode with visual.The technology of decoded video and voice data all has description in relevant international standard, the those skilled in the art in this field can understand.A plurality of decoder modules can exist in video player module 103 and move, so that a plurality of programs in one or more MPTSs are decoded and appeared.Integrated many picture numeral video frequency monitoring systems are display video programs flexibly.Through utilizing common computer graphic user interface technology to create a plurality of panels, a display can show a plurality of video frequency programs.The quantity of video display board, position and size can dispose through the graphical interfaces of a user friendly type.
Though the video frequency program on the display provides a kind of and checked the method easily of video quality with human eye, it is not sure of and produces wrong reason when video is defective in quality.Because digital video services requires transmission lot of data under high precision time requires, the chance of generation-MPTS mistake is a lot.May influence the error condition of Video service quality, include but are not limited to: transfer of data is incured loss through delay or is lost, lacks program components, loses or incorrect metadata, code error etc.Wherein any mistake all can influence the service quality of receiver to decoding capability and the video and the audio frequency of data.
In order to monitor the mistake and the problem of getting rid of in the service in the MPTS, the data processing module 102 of integrated many pictures monitoring system carries out comprehensive MPTS analysis, whether meets the international and regional standard with the checking MPTS.Applicable standard can be distinguished with the different of transmission method according to the area to some extent.The international and regional standard that some are common includes but not limited to: the ISDB standard of the ATSC standard of DVB standard, North America and the Korea S of MPEG-2, MPEG-4, European Broadcasting Union, Japan and South America broadcasting and the AVS standard of China.Because the many contents of the number of parameters of required test are complicated in the digital video services; European Broadcasting Union and ATSC have formulated test and the guide of checking digital video services separately, comprising: DVB system ETSI TR 101290 measures the code of practice ATSC A-78 that guides and MPTS are verified.
Fig. 2 has shown the theory diagram of the data processing module of the integrated many pictures monitoring system of the present invention, and this data processing module 102 comprises: a PID shunts submodule 201, metadata decoding and analyzes the decoding of submodule 202 and program and analysis submodule 203.
Metadata decoding and analysis submodule 202 decoding MPEG-2 Program Specific Information (PSI); A series of programs and corresponding video, audio frequency and data to obtain to be comprised in the MPTS flow basically, and information on services (SI) table in the DVB system of decoding simultaneously and the underlying table in ATSC plan and the system information protocol (PSIP) come electron gain program guide and other related service information.
Metadata error is common MPTS mistake, and they possibly include but are not limited to: lack assembly, metadata table transmission delay, predicative method mistake, parameter inconsistent, lack necessary descriptor etc.Integrated many picture numeral video frequency monitoring systems use the test philosophy and the user-defined test threshold of appointment in DVB and the ATSC test guide with configuration above situation to be carried out various tests.In the present system that accomplishes, system is with content grammer, the Cyclic Redundancy Check of test chart, and the blanking time that repeats to show.The syntax error of check table only needs decoding table and verifies whether standard compliant permissible value of decoded value.It is to make table to decode that the another kind of syntax error embodies.CRC check is the crc value that receives data through calculating; Then with coding schedule in crc value compare, if they are inconsistent, crc error is so just arranged; Its generation shows that transmit flow data possibly be damaged in coding or transmission, mpeg standard has defined the algorithm that calculates CRC.
The another kind of common mistake of relevant metadata table is the blanking time of table.The retransmit interval of MEPG standard named list, the blanking time of the double appearance of same table can not overgauge official hour interval.Want measuring intervals of TIME, only need add the timestamp of the time of advent, and calculate the time difference between continuous two tables the packet that comprises table.
After system accomplished the metadata decoding and obtains programme information, program decoding and 203 pairs of audio frequency and video of analysis submodule flow basically to be analyzed.Many mistakes may take place in video and audio program; In DVB and ATSC test guide, defined modal mistake, they comprise: the accuracy of PCR (timer reference of programs), PCR shake, PCR frequency departure, PTS (demonstration timestamp) at interval, the operating position of the basic streambuf of Voice & Video.In same system, can there be a plurality of program decodings and analysis submodule 203 simultaneously a plurality of programs in the MPTS to be decoded.
System described in this application also supports pcr analysis, comprises accuracy, shake and frequency departure, PTS interval measurement, the basic stream damper analysis of video and audio frequency, and the indication of monitoring transport stream data packet mistake.The ETSI TR of DVB system 101290 measurement guides all have detailed description to the method for testing of these parameters.
Foregoing test can be accomplished under the situation of incomplete decoding compressed audio/video data frame.Some tests in addition comprise the audio loudness analysis, and black image and rest image detection need earlier audio/video to be decoded.In order to accomplish these tests, data processing module 102 is with further audio/video and the audio data of decoding continuous or periodicly.
The audio loudness value is an important parameter, and broadcast service merchant need test to it continuously, and when changing with the maintenance programming events, the audio loudness value is consistent.In order to calculate audio loudness, data processing module 102 flows decoding basically with audio frequency, and obtains the PCM value of each voice-grade channel, and concrete loudness value can be calculated based on the algorithm that ITU-R BS.1770-2 suggestion provides.
Video stream processor detects black frame of video and quiet frame through decoded video.Brightness value through each pixel of inspection decoding rear video frame just can determine whether it is black frame, and when the threshold value of most pixel value less than a regulation, frame can be classified as black frame, and these threshold values can decide through experiment and user's needs.For example, if 98% or more pixel brightness value less than 32 (maximum is 255), this frame of video can be considered to a black frame so.Quiet frame detection method is similar with the method that detects black frame; Only in this case; A frame of video was compared with former frame of video, through comparing the deviation of each pixel brightness value between two frames, if deviation is less than certain threshold value in most pixel; Can think that these two frames are identical, or quiet frame.
All PID shunt submodules 201, metadata decoding and analyze the mistake that submodule 202 and program are decoded and analysis submodule 203 produces and will be sent to error reporting submodule 204.Error reporting submodule 204 will be classified to mistake based on test defined error severity of guide or priority; All detected mistakes are recorded in the database 205 that is installed in the monitoring system after all passing through the classification of error reporting submodule 204; So that further check and analyze, system provides a user-friendly gui interface to come the historical mistake in the search database 205.Simultaneously, the information of mistake can send to display module, shows test results in real time in local result view module 104 and/or remote results views module 105.
The theory diagram of Fig. 3 display video player module 103.Video player module 103 comprises: a plurality of Video Decoder 301, video display sub-module 302, a plurality of audio decoder 303, the voice data that is used to calculate loudness are analyzed submodule 304 and are used to show the audio frequency display sub-module 305 of audio track PCM level and audio loudness value.In addition, video player module 103 also comprises the MPTS mistake summary submodule 306 and error condition display sub-module 307 of the real-time error condition that shows overall transfer stream.The error condition of MPTS is to be obtained by the data processing module described in the paragraph of front 102.For the user checks more intuitively, error condition is used color coding, for example: red expression first priority (the most serious) mistake, the orange expression second priority mistake, yellow expression the 3rd priority mistake etc.When MPTS does not have mistake, the indication icon will become green.Here used misclassification is come the self-test guide: the ETSI TR of DVB system 101290 measures the code of practice ATSC A-78 of guide and MPTS checking.It is to be noted to be divided into priority 1 to mistake, 2 and 3 is one of many possible misclassification methods, and same, many other color combination also can be used to the seriousness of error differentiating.
Be noted that the various software design alternative can be above-mentioned module assignment in the application program of different independent operatings.In present a kind of realization; One of them application program comprises interface module 101 and data processing module 102; It will be named as " handle and use "; The Another application program contains 103, the three application programs of video player module and contains local result view module 104 and remote results views module 105.In addition, also there is several different methods to can be applicable between distinct program, carry out exchanges data.In present realization, system uses UDP/ IP Data Transport Protocol to deliver to video player module 103 to the audio/video data of compression from data processing module 102.System uses the NET of Microsoft remote protocol to be implemented in different application program other test results of exchange and control data.Should be pointed out that multiple mode can be used for the realization of these softwares, comprise and use different computer languages, operating system, data exchange agreement etc.
These integrated many pictures numeral video frequency monitoring systems have also comprised the local result view module 104 and remote results views module 105 of the MPTS that is used for showing the real-time testing result.Local result view module 104 is software applications with remote results views module 105, and it can operate in the identical system together with other module or operate on the various computing machine that links to each other with monitoring system through IP network.
Local result view module 104 shows all test results with remote results views module 105, comprising: the metadata table of the PID of the video thumbnails of decoding, audio frequency PCM level value, metadata and elementary stream and bit rate, all program and their corresponding Voice & Video assemblies, program PCR and basic stream damper analysis result, decoding and relevant temporal information, reconstruction electronic program guides etc.It also provides the user interface that is used for control system, test parameter and configuration error alert options are set.Except accomplishing the uniformity test to operative norm on the MPTS, the user can also oneself create the structure that the MPTS masterplate defines MPTS, for example: the program of MPTS and PID and the maximin of setting basic stream bit rate.This system will test MPTS according to user-defined masterplate, and report any deviation.
The theory diagram of Fig. 4 display result views module, local result view module 104 has same assembly with remote results views module 105, and unification is here narrated with the result view module.Should be realized that; Above-mentioned realization is an example in many possibly the embodiment; There are many diverse ways to can be used to appear test result; In the embodiment of here describing, the result view module comprises one and is connected to remote interface submodule 410, thumbnail submodule 401, the PID of treatment system and flows bit rate submodule 402, program analysis result submodule 403, metadata table analysis result submodule 404, EPG submodule 405, historical test result submodule 406, test configurations submodule 407, alarm configuration submodule 408 basically.
Remote interface submodule 410 is used for obtaining the analysis result on same computer or various computing machine, and the test result of obtaining can be distributed to other submodule in the result view module.Thumbnail submodule 401 shows key frame of video and the audio frequency PCM value of extracting.PID shows all PID (comprise metadata table, audio frequency, video and data flow basically) and their bit rate with basic stream bit rate submodule 402.Program analysis result submodule 403 shows all analysis results relevant with program, comprises the operating position of PCR and basic stream damper.Metadata table analysis result submodule 404 shows all test results relevant with metadata table, like the content of the table of decoding and the time interval measurement of table.EPG submodule 405 utilizes the information on services structure electric program guide of decoding.Historical test result submodule 406 provides the user interface that the result who preserves in the database is retrieved and inquires about.Whether test configurations submodule 407 can be used for creating the MPTS masterplate and defines transport stream structure, be complementary with the masterplate of being scheduled to like the minimum of program and PID and the basic stream of setting bit rate and the MPTS that maximum magnitude is tested actual input.
Integrated many picture numeral video frequency monitoring systems also comprise automatic warning function.The user can use alarm configuration submodule 408, and send Email and/or note are reported to the police to the e-mail address and/or the telephone number of appointment when mistake takes place.These integrated many picture numeral video frequency monitoring systems provide according to concrete mistake for the user, selectively alarm method.Integrated many picture numeral video frequency monitoring systems will at first let the user in all possible error condition, select to hope to send the mistake of reporting to the police, and system is kept at user's selection in the system database 205.When MPTS makes a mistake, this mistake will be compared with user's wrong choice tabulation, if it is included in the tabulation, will send warning.In case MPTS makes a mistake, many mistakes may repeat to take place.In order to prevent to send too many warning, this system can let the user specify and whether send the repetitive error warning, send repetitive error warning, the time interval that then can also specify repetitive error to report to the police if the user specifies.
The above is merely the preferred embodiment of the invention; Not in order to restriction the invention; Any modification of being done within all spirit and principles in the invention, be equal to replacement and improvement etc., all should be included within the protection range of the invention.
Claims (10)
1. integrated many pictures digital video monitoring method is characterized in that: comprise the steps:
Step 1, at first receive the identical or different digital television signal of one or more standard;
Video and audio program in step 2, a plurality of digital television signals of decoding in the time of the decoded digital TV signal, also carry out comprehensive MPTS analysis and verify whether MPTS meets suitable standard digital television signal;
Step 3, on one or more computer display or television set, show a plurality of video contents that decoding is later and the level and the audio loudness of each video corresponding audio sound channel;
Checking result in step 4, the step 2 through the application program displays on the various computing machine that operates in same monitoring system or link to each other with monitoring system through IP network to the user.
2. as claimed in claim integrated many pictures digital video monitoring method, it is characterized in that: said step 2 specifically comprises following substep:
Step 22, digital television signal is divided into different elementary streams group and data set according to the ID of the packet of digital television signal;
Step 24, in the MPTS with metadata decoding, with the programme information that obtains to be comprised in the MPTS, use the testing standard and the user-defined test threshold values that are suitable for the mistake of metadata to be carried out various tests in the time of decoding with configuration;
Step 26, accomplish the metadata decoding and obtain programme information after, the audio frequency and video of digital television signal are flowed basically decode and analyze.
3. according to claim 1 or claim 2 integrated many pictures digital video monitoring method is characterized in that: in the said step 2, also comprise the step of the error logging that authenticates in the MPTS in database, for from now on examination and analysis provides the data foundation.
4. integrated many pictures digital video monitoring method as claimed in claim 3; It is characterized in that: in the said step 2, also comprise following content: at first let the user in all possible error condition, select to hope to send the mistake of reporting to the police, and user's selection is kept in the database with the form of tabulating; When MPTS makes a mistake; This mistake will be compared with user's wrong choice tabulation, if it is included in the tabulation, will send warning.
5. integrated many pictures digital video monitoring method as claimed in claim 1 is characterized in that: the demonstration in the said step 4 is the error condition that shows MPTS according to the seriousness of MPTS mistake with the various colors mark.
6. integrated many pictures numeral video frequency monitoring systems is characterized in that: comprising:
Interface module is used to receive the identical or different digital television signal of one or more standard;
Data processing module, the video and the audio program of a plurality of digital television signals that are used for decoding, and digital television signal carried out comprehensive MPTS analysis and whether the checking MPTS meets suitable standard;
Video player module is used on one or more computer display or television set, showing the decode later a plurality of video contents and the level and the audio loudness of each video corresponding audio sound channel;
The result view module is used for the checking result through the application program displays on the various computing machine that operates in same monitoring system or link to each other with monitoring system through IP network to the user.
7. integrated many picture numeral video frequency monitoring systems as claimed in claim 6, it is characterized in that: said data processing module further comprises:
PID shunts submodule, is used for according to the ID of the packet of digital television signal digital television signal being divided into different elementary streams group and data set;
Metadata decoding and analysis submodule 202; Be used for to MPTS with metadata decoding; With the programme information that obtains to be comprised in the MPTS, use the testing standard and the user-defined test threshold values that are suitable for the mistake of metadata to be carried out various tests in the time of decoding with configuration;
Program decoding and analyze submodule is used for after accomplishing the metadata decoding and obtaining programme information, the audio frequency and video of digital television signal is flowed basically decode and analyze.
8. integrated many picture numeral video frequency monitoring systems as claimed in claim 7; It is characterized in that: said integrated many picture numeral video frequency monitoring systems also comprise the error reporting submodule; All PID shunting submodules, metadata decoding are decoded and are analyzed the detected mistake of submodule with analysis submodule and program and all be sent to the error reporting submodule; Said integrated many picture numeral video frequency monitoring systems also comprise database; The error reporting submodule is classified to mistake according to test defined error severity of guide or priority; All detected mistakes are recorded in the database after all passing through the classification of error reporting submodule, so that further check and analyze.
9. like each described integrated many picture numeral video frequency monitoring systems of claim 6 to 8; It is characterized in that: said video player module comprises: a plurality of Video Decoders, video display sub-module, a plurality of audio decoder, the audio frequency display sub-module that is used to calculate the voice data analysis submodule of loudness and is used to show audio track PCM level and audio loudness value; In addition, video player module also comprises the MPTS mistake summary submodule and the error condition display sub-module of the real-time error condition that shows overall transfer stream.
10. integrated many picture numeral video frequency monitoring systems as claimed in claim 6; It is characterized in that: said result view module comprises one and is connected to remote interface submodule, thumbnail submodule, the PID of treatment system and flows bit rate submodule, program analysis result submodule, metadata table analysis result submodule, EPG submodule, historical test result submodule, test configurations submodule, alarm configuration submodule basically, said result view module operate in same monitoring system or the various computing machine that links to each other with monitoring system through IP network on;
The remote interface submodule is used for obtaining the analysis result on same computer or various computing machine; The test result of obtaining can be distributed to other submodule in the result view module; The thumbnail submodule shows key frame of video and the audio frequency PCM value of extracting; PID shows all PID and their bit rate with basic stream bit rate submodule; Program analysis result submodule shows all analysis results relevant with program, comprises the operating position of PCR and basic stream damper, and metadata table analysis result submodule shows all test results relevant with metadata table; The information on services structure electric program guide of EPG submodule utilization decoding; Historical test result submodule provides the user interface that the result who preserves in the database is retrieved and inquires about, and the test configurations submodule is used to create the MPTS masterplate and defines transport stream structure, and the alarm configuration submodule is used for mistake is reported to the police.
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