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AVS Part 1 System

AVS Part 1 System

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AVS Part 1 System

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  1. Chinese Information technology - Advanced coding of audio and video AVS Part 1System CUI BIN AVS team of the MPL at UTA

  2. AVS comprises 10 parts • Part I: System • Part 2: Video • Part 3: Audio • Part 4: Compliance Tests • Part 5: Reference Software • Part 6: Digital Rights Management • Part 7: Mobile Video • Part 8: Transmission of AVS by IP Network • Part 9: Format of AVS • Part 10:Mobile Audio & Speech

  3. AVS part 1 • Part 1 of AVS addresses the combining of one or more elementary streams of video and audio • Convert data into single or multiple streams which are suitable for storage or transmission.

  4. AVS System

  5. AVS Bit-streams • ES • Elementary Stream • PES • Packetized Elementary Stream • TS • Transport Stream • PS • Program stream

  6. PES • PES is an abbreviation for packetized elementary stream. • PES’s syntax and semantics are used to encapsulate the audio and the video elementary stream information

  7. Syntax of PES

  8. Multiplex

  9. PS ( Program Stream) • The PS is designed for use in relatively error-free environments • PS packets may be of variable and have relatively great lengths

  10. Decoder of PS

  11. Syntax of PS

  12. PS Map

  13. TS ( Transport Stream ) • The Transport Stream is designed for use in environments where errors are likely • The TS combines one or more PES with one or more independent time bases into a single stream • TS packets are 188 bytes long

  14. TS Decoder

  15. TS decoder

  16. Transport Stream PEIT: program element information table

  17. TS map

  18. Switch of PS and TS • PS and TS can be interchangeable with each other • Switch according to the public interchange format of PES Packet

  19. Reference • [1] Dandan Ding et al., "Reconfigurable video coding framework and decoder reconfiguration instantiation of AVS", Signal Processing: Image Communication, vol. 24, pp. 287-299, April 2009. • [2] Junhao Zheng et al., "An efficient VLSI architecture for CABAC of AVS HDTV decoder", Signal Processing: Image Communication, vol. 24, pp. 324-332, April 2009. • [3] Lu Yu, SijiaChen and JianpengWang, "Overview of AVS-video coding standards", Signal Processing: Image Communication, vol. 24, pp. 247-262, April 2009. • [4] Huizhu Jia et al., "An AVS HDTV video decoder architecture employing efficient HW/SW partitioning", IEEE Trans. on Consumer Electronics, vol. 52, pp. 1447-1453, Oct. 2006. • [5] A. Ehret et al., "Audio coding technology of ExAC", Intelligent Multimedia, Video and Speech Processing, 2004. , pp. 290-293, Hong Kong, China, Oct. 2004. • [6] Cong Peng et al., "Architecture of AVS hardware decoding system", Intelligent Multimedia, Video and Speech Processing, 2004., pp. 306-309, Hong Kong, Oct. 2004. • [7] Per Ekstrand, "Bandwidth extension of audio signals by spectral band replication", Proc. 1st IEEE Benelux Workshop on Model based Processing and Coding of Audio, pp. 53-58, Leuven, Belgium, Nov. 2002.

  20. Reference • [8] Martin Dietz and Stefan Meltzer, "CT-aacPlus—a state-of-the-art audio coding system", EBU Technical Review, July 2002. • [9] Davis Pan and I. L. Schaumburg, "A tutorial on MPEG/audio compression", IEEE Multimedia, vol. 2, pp. 60-74, 1995. • [10] Xin Jin, Songnan Li and King Ngi Ngan, "Platform-independent MB-based AVS video standard implementation", Signal Processing: Image Communication, vol. 24, pp. 312-323, April 2009. • [11] Qitong Yang et al., "An Efficient Hardware Implementation for Intra Prediction of AVS Encoder", IEEE ICALIP 2008 pp. 200-205, Shanghai, July 2008. • [12] Leirui Wang et al., "Hardware Implementation of Transform and Quantization for AVS Encoder", IEEE ICALIP 2008 pp. 843-847, Shanghai, July 2008. • [13] Xin Jin, Songnan Li and King Ngi Ngan, "AVS Video Standard Implementation For SOC Design", IEEE Int. Conference Neural Networks & Signal Processing, Zhenjiang, June 2008. • [14] Hai bing Yin et al., "An efficient VLSI architecture for rate disdortion optimization in AVS video encoder", IEEE International Symposium on Circuits and Systems,IEEE ISCAS 2008, pp. 2805-2808, 2008. • [15]Yan Min and Hu Guorong, "Evaluation of Codec Performance of AVS Audio", Information Technology & Standardization, vol.2, pp.22-25,2006.

  21. Thank You!