数字电视前端监视系统的研究
摘要
在对运动图象专家组标准-2(Moving Picture Expert Group-2,MPEG-2)传输流的介绍和对分组语法详细说明的基础上,将数字电视视频码流中各种有用的数据负载从标准的MPEG-2传输流中分离出来。通过对程序特殊信息(Program Special Information,PSI)的分析,包括程序关联表(Program Association Table,PAT)、程序映射表(Program Map Table,PMT)、条件访问表(Conditional Access Table,CAT)等语法结构,给出了解析PSI信息的一个具体方法。在对数据视频广播(Digital Video Broadcasting,DVB)业务信息(Specification Information,SI)信息表的语法结构详细说明的前提下,包括网络信息表(Network Information Table,NIT)、业务描述表(Service Descriptor Table,SDT)、节目组相关表(Bouquet Association Table,BAT)、事件信息表(Event Information Table,EIT)等大量的语法结构,实现了对这些语法结构的解析。对在整个DVB-SI信息系统中大量使用的描述子做了细致的分析,并提出了解析描述子的一种相对优化的算法。
依靠对MPEG-2流和PSI/SI信息的分析,设计并实现了一套视频监视系统,严格按照MPEG-2及欧洲DVB标准对输入码流进行分析。采用模块化的设计,使模块更易复用。以数据驱动作为系统的整体数据流向,由接收模块接收到指定的数据后,将数据添加进相应的通道,由通道通知主模块数据到达,使得整个系统结构顺畅,并拥有较高的数据处理效率。系统中设计了一个可复用的过滤器,对数字业务平台中传输的各个程序号(Program Identification,PID)的传输流(Transport Stream,TS)进行接收和分发,凭借一个高效队列缓存区,成功的对程序原始流(Program Elemental Stream,PES)进行播放。另外,实现了对数字电视码流中各节目的流量和各种记录值进行统计,对ETSI(European Telecommunication Standard Institute) TR(Technical Report)290中所规定的三层错误及MPEG TS中的多种错误进行分析记录,对传输流中节目的异常发出报警信息,并且能够对运行时间内发生的事件和消息进行记录,形成可以维护的各种日常参数。
Based on the introduction of MPEG-2(Moving Picture Expert Group) transport stream and packet stream syntax, various kinds of useful digital TV data are separated from the standard MPEG-2 transport stream. With analysis of the PSI(Program Specification Information),including PAT(Program Association Table),PMT(Program Map Table) and CAT(Conditional Access Table),an effective method of parsing PSI is put forward. Through the specification of the DVB (Digital Video Broadcasting) SI (Specification Information), including NIT (Network Information Table), SDT (Service Descriptor Table) and BAT (Bouquet Association Table), the SI and various kinds of descriptors are parsed in the thesis.
According to the above discussion about MPEG-2 transport stream and PSI/SI, This paper proposes a front monitoring system, strictly complying with MPEG-2 and DVB standards. To make the module easier to reuse, module design method is adopted. Urge the whole system depending on the receive data, receiving module get the data, and add the data into the channel, channel notify the main module. In the system, a filter is designed to parse and dispose the various digital video data, and a queue buffer is designed to play the program elementary stream. The program flux value and various statistics and the errors defined in ETSI (European Telecommunication Standard Institute) TR (Technical Report) 290 are recorded. Exception in transport stream can be alarmed. The event and message in the system running period can be recorded on a log that can be maintained.
依靠对MPEG-2流和PSI/SI信息的分析,设计并实现了一套视频监视系统,严格按照MPEG-2及欧洲DVB标准对输入码流进行分析。采用模块化的设计,使模块更易复用。以数据驱动作为系统的整体数据流向,由接收模块接收到指定的数据后,将数据添加进相应的通道,由通道通知主模块数据到达,使得整个系统结构顺畅,并拥有较高的数据处理效率。系统中设计了一个可复用的过滤器,对数字业务平台中传输的各个程序号(Program Identification,PID)的传输流(Transport Stream,TS)进行接收和分发,凭借一个高效队列缓存区,成功的对程序原始流(Program Elemental Stream,PES)进行播放。另外,实现了对数字电视码流中各节目的流量和各种记录值进行统计,对ETSI(European Telecommunication Standard Institute) TR(Technical Report)290中所规定的三层错误及MPEG TS中的多种错误进行分析记录,对传输流中节目的异常发出报警信息,并且能够对运行时间内发生的事件和消息进行记录,形成可以维护的各种日常参数。
Based on the introduction of MPEG-2(Moving Picture Expert Group) transport stream and packet stream syntax, various kinds of useful digital TV data are separated from the standard MPEG-2 transport stream. With analysis of the PSI(Program Specification Information),including PAT(Program Association Table),PMT(Program Map Table) and CAT(Conditional Access Table),an effective method of parsing PSI is put forward. Through the specification of the DVB (Digital Video Broadcasting) SI (Specification Information), including NIT (Network Information Table), SDT (Service Descriptor Table) and BAT (Bouquet Association Table), the SI and various kinds of descriptors are parsed in the thesis.
According to the above discussion about MPEG-2 transport stream and PSI/SI, This paper proposes a front monitoring system, strictly complying with MPEG-2 and DVB standards. To make the module easier to reuse, module design method is adopted. Urge the whole system depending on the receive data, receiving module get the data, and add the data into the channel, channel notify the main module. In the system, a filter is designed to parse and dispose the various digital video data, and a queue buffer is designed to play the program elementary stream. The program flux value and various statistics and the errors defined in ETSI (European Telecommunication Standard Institute) TR (Technical Report) 290 are recorded. Exception in transport stream can be alarmed. The event and message in the system running period can be recorded on a log that can be maintained.
引文
陈林. DVB系统现状与双向电视动向. 有线电视技术, 2002, 15: 1~5
曹利齐. DVB-C技术及应用前景探讨. 电视技术, 2000, 215: 1~3
易鹏, 解炜. DVB-C有线电视数字综合解码接收机. 广播与电视技术, 2000, 5: 1~5
张天舒. DVB标准中MPEG物理接口. 中国有线电视, 2002, 11: 1~3
Lei Sun, Wenjun Zhang, Songyu Yu. Storage scheme of system information for digital television receiver. Consumer Electronics IEEE Transactions on, 2003, 49(1): 147~151
章之俭. 数字电视标准的制定及利用卫星传送的前景. 广播与电视技术, 2001, 1: 1~5
Gross, B, Breide S, Kohler R. DVB integrated satellite receiver decoder PC card. Consumer Electronics IEEE Transactions on, 1998, 44(3): 851~856
尹日, 陈惠明, 张学凡. DVB-C系统的计算机模拟与实验研究. 上海大学学报, 2002, 6(1): 1~6
刘永志, 王芙蓉, 黄本雄. DVB-ASI接收系统解码规则实现过程. 电信快报, 2000, 12: 1~3
Arcidiacono A. Multimedia services and data broadcasting via satellite. Electronics & Communication Engineering Journal, 1997, 9(1): 33~37
杜江洪, 徐重阳, 丁晖. HFC网上数字视频传输的关键技术与标准. 电视技术, 2000, 214: 1~5
汪章瑞. DVB-C主要技术参数和测量方法. 广播与电视技术, 2000, 11: 1~5
O'Leary S, Priestly D, McSparron N. Mobile broadcasting of DVB-T signals. Broadcasting IEEE Transactions on, 1998, 44(3): 346~352
刘万铭. 论DVB数字电视广播标准. 电视技术论坛, 2000, 3: 1~15
钟玉琢, 王琪, 贺玉文. 基于对象的多媒体数据压缩编码标准MPEG-4及其校验模型. 北京: 科学出版社, 2000. 78-80
朱玮蕾. MPEG-2DVB传送流分析和测量的研究及实现. 上海交通硕士学位论文. 2002.
Pazarci M, Dipcin V. A MPEG2-transparent scrambling technique. Consumer
Electronics IEEE Transactions on,?2002, 48(2): 345~355
颜亮. MPEG-2传输流分析仪的研究, 天津大学硕士学位论文, 2002.
Fibush D. Timing and Synchronization using MPEG-2 Transport Streams. SMPTE Journal, 1996, 105(7): 395~400
吴清巍, 盛东晖, 甘志峰. DVB系统前端MPEG-2编码器的开发. 电视技术, 2000, 222: 1~2
杨铭, 杜文, 崔慧娟等. 基于PC的卫星电视数字电视广播系统的MPEG-II解码. 清华大学学报, 2003, 43(7): 1~4
Drury G.M. DVB channel coding standards for broadcasting compressed video services. Electronics & Communication Engineering Journal,?1997, 9(1): 11~20
Ci Wang, Hong-Bin Yu, Meng Zheng. A DCT-based MPEG-2 transparent scrambling algorithm. Consumer Electronics IEEE Transactions on, 2003,49(4): 1208~1213
钟玉琢, 王琪, 赵黎等. 运动图像压缩编码国际标准MPEG的新进展. 北京:清华大学出版社, 2002.1-265
孟庆雷. MPEG-2技术算法浅析. 有线电视技术, 2002, 19: 1~5
牟旭东, 卢振陶, 陈平等. DVB传输流捕获系统的实现. 武汉大学学报, 2000, 46(3): 1~4
Dong-Hee Han, Kyu-Tae Yang, Jin-Ho Kim. A SI/PSI RSMS data stream and PCR/PTS processing algorithm for Koreasat digital DBS system. Consumer Electronics IEEE Transactions on, 1998, 44(2): 398~404
Won-Ho Kim, Kyung-Jae Chen, Hyun-Suk Cho. Design and implementation of MPEG-2/DVB scrambler unit and VLSI chip. IEEE Transactions on Consumer Electronics, 1997, 43(3): 980~985
Perkins M, Arnstein D. Statistical Multiplexing of Multiple MPEG-2 Video Program in a single Channel. SMPTE Journal, 1995, 104(9): 596~599
王江. DVB-C机顶盒中的视频信号处理. 电子技术应用, 2000, 12: 1~4
周师亮. 广播电视有条件接收系统采用的密码算法. 视频技术, 2002, 2: 1~6
Giachetti J L, Lenoir V, et al. A common conditional access interface for digital video broadcasting decoders. Consumer Electronics IEEE Transactions on, 1995, 41(3): 836~841
周志, 王贻良. DVB数据广播标准及实现. 电视技术, 2000, 215: 1~3
Chee-Siong Lee, Keller T, Hanzo L. OFDM-based turbo-coded hierarchical and non-hierarchical terrestrial mobile digital video broadcasting. Broadcasting IEEE Transactions on, 2000, 46(1): 1~22
Neale J, Green R, Landovskis A. Interactive channel for multimedia satellite networks. Communications Magazine IEEE, 2001, 39(3): 192~198
Linder H, Clausen H D, Collini-Nocker B. Satellite Internet services using DVB/MPEG-2 and multicast Web caching. Communications Magazine IEEE, 2000, 38(6): 156~161
时向东, 冯振明, 彭勇. 基于DVB-C的数据广播系统的设计与实现. 广播与电视技术, 2001, 4: 1~4
刘卫忠, 刘小卫, 艾竞等. DVB-SI信息处理与机顶盒功能分析. 电视技术, 2001, 10: 1~3
Pekowsky S, Jaeger R. The set-top box as “multi-media terminal”. Consumer Electronics IEEE Transactions on,?1998, 44(3): 833~840
Hyun-Ho Jeon, Soo-In Lee, et al. Transmission of system information and additional service data for digital HDTV broadcasting. Broadcasting IEEE Transactions on, 1998, 44(1): 87~93
Brett M, Gerstenberg B, et al. Video processing for single-chip DVB decoder. Consumer Electronics IEEE Transactions on,?2001, 47(3): 385~393
张珊. DVB系统SI信息介绍. 广播与电视技术, 2000, 7: 1~5
Wood D. The DVB project philosophy and core system. Electronics & Communication Engineering Journal, 1997, 9(1): 5~10
Sherratt R S, Linfoot S L. Deterministic equalization and results of a DVB-T multipath equalizer for both 16-QAM and 64-QAM operation. Consumer Electronics IEEE Transactions on, 2003, 49(1): 21~26
王雪青, 陈都, 宋建新等. SI服务信息表在数字视频广播EPG中的应用. 电视技术, 2000, 217: 1~4
Clausen H D, Linder H, Collini-Nocker B. Internet over direct broadcast satellites. Communications Magazine IEEE, 1999, 37(6): 146~151
Nam Ling, Nien-Tsu Wang. Real-time video decoding scheme for HDTV set-top boxes.
Broadcasting IEEE Transactions on, 2002, 48(4): 353~360
Olsson S, Stroppiana M, Baina J. Objective methods for assessment of video quality state of the art. Broadcasting IEEE Transactions on,?1997, 43(4): 487~495
曹利齐. DVB-C技术及应用前景探讨. 电视技术, 2000, 215: 1~3
易鹏, 解炜. DVB-C有线电视数字综合解码接收机. 广播与电视技术, 2000, 5: 1~5
张天舒. DVB标准中MPEG物理接口. 中国有线电视, 2002, 11: 1~3
Lei Sun, Wenjun Zhang, Songyu Yu. Storage scheme of system information for digital television receiver. Consumer Electronics IEEE Transactions on, 2003, 49(1): 147~151
章之俭. 数字电视标准的制定及利用卫星传送的前景. 广播与电视技术, 2001, 1: 1~5
Gross, B, Breide S, Kohler R. DVB integrated satellite receiver decoder PC card. Consumer Electronics IEEE Transactions on, 1998, 44(3): 851~856
尹日, 陈惠明, 张学凡. DVB-C系统的计算机模拟与实验研究. 上海大学学报, 2002, 6(1): 1~6
刘永志, 王芙蓉, 黄本雄. DVB-ASI接收系统解码规则实现过程. 电信快报, 2000, 12: 1~3
Arcidiacono A. Multimedia services and data broadcasting via satellite. Electronics & Communication Engineering Journal, 1997, 9(1): 33~37
杜江洪, 徐重阳, 丁晖. HFC网上数字视频传输的关键技术与标准. 电视技术, 2000, 214: 1~5
汪章瑞. DVB-C主要技术参数和测量方法. 广播与电视技术, 2000, 11: 1~5
O'Leary S, Priestly D, McSparron N. Mobile broadcasting of DVB-T signals. Broadcasting IEEE Transactions on, 1998, 44(3): 346~352
刘万铭. 论DVB数字电视广播标准. 电视技术论坛, 2000, 3: 1~15
钟玉琢, 王琪, 贺玉文. 基于对象的多媒体数据压缩编码标准MPEG-4及其校验模型. 北京: 科学出版社, 2000. 78-80
朱玮蕾. MPEG-2DVB传送流分析和测量的研究及实现. 上海交通硕士学位论文. 2002.
Pazarci M, Dipcin V. A MPEG2-transparent scrambling technique. Consumer
Electronics IEEE Transactions on,?2002, 48(2): 345~355
颜亮. MPEG-2传输流分析仪的研究, 天津大学硕士学位论文, 2002.
Fibush D. Timing and Synchronization using MPEG-2 Transport Streams. SMPTE Journal, 1996, 105(7): 395~400
吴清巍, 盛东晖, 甘志峰. DVB系统前端MPEG-2编码器的开发. 电视技术, 2000, 222: 1~2
杨铭, 杜文, 崔慧娟等. 基于PC的卫星电视数字电视广播系统的MPEG-II解码. 清华大学学报, 2003, 43(7): 1~4
Drury G.M. DVB channel coding standards for broadcasting compressed video services. Electronics & Communication Engineering Journal,?1997, 9(1): 11~20
Ci Wang, Hong-Bin Yu, Meng Zheng. A DCT-based MPEG-2 transparent scrambling algorithm. Consumer Electronics IEEE Transactions on, 2003,49(4): 1208~1213
钟玉琢, 王琪, 赵黎等. 运动图像压缩编码国际标准MPEG的新进展. 北京:清华大学出版社, 2002.1-265
孟庆雷. MPEG-2技术算法浅析. 有线电视技术, 2002, 19: 1~5
牟旭东, 卢振陶, 陈平等. DVB传输流捕获系统的实现. 武汉大学学报, 2000, 46(3): 1~4
Dong-Hee Han, Kyu-Tae Yang, Jin-Ho Kim. A SI/PSI RSMS data stream and PCR/PTS processing algorithm for Koreasat digital DBS system. Consumer Electronics IEEE Transactions on, 1998, 44(2): 398~404
Won-Ho Kim, Kyung-Jae Chen, Hyun-Suk Cho. Design and implementation of MPEG-2/DVB scrambler unit and VLSI chip. IEEE Transactions on Consumer Electronics, 1997, 43(3): 980~985
Perkins M, Arnstein D. Statistical Multiplexing of Multiple MPEG-2 Video Program in a single Channel. SMPTE Journal, 1995, 104(9): 596~599
王江. DVB-C机顶盒中的视频信号处理. 电子技术应用, 2000, 12: 1~4
周师亮. 广播电视有条件接收系统采用的密码算法. 视频技术, 2002, 2: 1~6
Giachetti J L, Lenoir V, et al. A common conditional access interface for digital video broadcasting decoders. Consumer Electronics IEEE Transactions on, 1995, 41(3): 836~841
周志, 王贻良. DVB数据广播标准及实现. 电视技术, 2000, 215: 1~3
Chee-Siong Lee, Keller T, Hanzo L. OFDM-based turbo-coded hierarchical and non-hierarchical terrestrial mobile digital video broadcasting. Broadcasting IEEE Transactions on, 2000, 46(1): 1~22
Neale J, Green R, Landovskis A. Interactive channel for multimedia satellite networks. Communications Magazine IEEE, 2001, 39(3): 192~198
Linder H, Clausen H D, Collini-Nocker B. Satellite Internet services using DVB/MPEG-2 and multicast Web caching. Communications Magazine IEEE, 2000, 38(6): 156~161
时向东, 冯振明, 彭勇. 基于DVB-C的数据广播系统的设计与实现. 广播与电视技术, 2001, 4: 1~4
刘卫忠, 刘小卫, 艾竞等. DVB-SI信息处理与机顶盒功能分析. 电视技术, 2001, 10: 1~3
Pekowsky S, Jaeger R. The set-top box as “multi-media terminal”. Consumer Electronics IEEE Transactions on,?1998, 44(3): 833~840
Hyun-Ho Jeon, Soo-In Lee, et al. Transmission of system information and additional service data for digital HDTV broadcasting. Broadcasting IEEE Transactions on, 1998, 44(1): 87~93
Brett M, Gerstenberg B, et al. Video processing for single-chip DVB decoder. Consumer Electronics IEEE Transactions on,?2001, 47(3): 385~393
张珊. DVB系统SI信息介绍. 广播与电视技术, 2000, 7: 1~5
Wood D. The DVB project philosophy and core system. Electronics & Communication Engineering Journal, 1997, 9(1): 5~10
Sherratt R S, Linfoot S L. Deterministic equalization and results of a DVB-T multipath equalizer for both 16-QAM and 64-QAM operation. Consumer Electronics IEEE Transactions on, 2003, 49(1): 21~26
王雪青, 陈都, 宋建新等. SI服务信息表在数字视频广播EPG中的应用. 电视技术, 2000, 217: 1~4
Clausen H D, Linder H, Collini-Nocker B. Internet over direct broadcast satellites. Communications Magazine IEEE, 1999, 37(6): 146~151
Nam Ling, Nien-Tsu Wang. Real-time video decoding scheme for HDTV set-top boxes.
Broadcasting IEEE Transactions on, 2002, 48(4): 353~360
Olsson S, Stroppiana M, Baina J. Objective methods for assessment of video quality state of the art. Broadcasting IEEE Transactions on,?1997, 43(4): 487~495