Mpeg2 Video Encoding in Consumer Electronics

  • Authors:

  • R. P. Kleihorst;A. Van Der Werf;W. H. A. Brüls;W. F. J. Verhaegh;E. Waterlander

  • Affiliations:

  • Philips Research Laboratories, Prof. Holstlaan 4, 5656 AA Eindhoven, The Netherlands;Philips Research Laboratories, Prof. Holstlaan 4, 5656 AA Eindhoven, The Netherlands;Philips Research Laboratories, Prof. Holstlaan 4, 5656 AA Eindhoven, The Netherlands;Philips Research Laboratories, Prof. Holstlaan 4, 5656 AA Eindhoven, The Netherlands;Philips Research Laboratories, Prof. Holstlaan 4, 5656 AA Eindhoven, The Netherlands

  • Venue:
  • Journal of VLSI Signal Processing Systems - Special issue on recent development in video: algorithms, implementation and applications
  • Year:
  • 1997

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Abstract

Only very recently, single-chip MPEG2 video encoders are beingreported. They are a result of additional interest in encoding in consumerproducts, apart from broadcast encoding, where a video encoder containsseveral expensive chips. Only single-chip solutions are cost-effectiveenough to enable digital recording for the consumer. The professionalbroadcast encoders are expensive because they use the full MPEG toolkit toguarantee good image quality, at the lowest possible bit-rate. Some MPEGtools are costly in hardware and these are therefore not feasible insingle-chip solutions. This results in higher bit-rates, that can beaccepted because of the available channel and storage capacity of the latestconsumer storage media, harddisk, digital tape (D-VHS) and Digital VersatileDisk (DVD). A consumer product is I.McIC, a single-chip MPEG2 video encoder.It operates in ML@SP mode which can be decoded by all MPEG2 decoders.The IC is highly-integrated, as it contains motion-estimation andcompensation, adaptive temporal noise filtering and buffer/bit-rate control.The high-throughput functions of the MPEG algorithm are mapped ontopipelined dedicated hardware, whereas the remaining functions are processedby an application-specific instruction-set processor. Software for thisprocessor can be downloaded, in order to suit the IC for differentapplications and operating conditions. The IC consists of severalcommunicating processors which were designed using high-level synthesistools, PHIDEO and DSP Station™.