Parallel Variable Length Decoding with Inverse Quantization for Software MPEG-2 Decoders

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概要

• 論文の詳細を見る

• This paper introduces fast methods for variable length decoding(VLD)and inverse quantization(IQ)on software MPEG-2 decoders by using Single Instruction stream Multiple Data stream(SIMD)type instructions for multimedia applications. With the VLD implementation, the VLD tables are made as small as possible so as to minimize missed cache accesses, and variable Iength codewords are decoded concurrently. With the IQ implementation, inverse quantization of the VLD results is performed in parallel. When these methods are used, combined clock cycles for VLD and IQ are roughly 30% shorter than those resulting from conventional methods, and this effect is especially pronounced for high bitrate streams.

• 社団法人電子情報通信学会の論文
• 2001-12-01

著者

• KURODA Ichiro

  Multimedia Research Laboratories, NEC Corporation

• Ikekawa M

  Nec Corp. Kawasaki‐shi Jpn

• Ikekawa Masao

  Multimedia Information Research Laboratories Nec Corporation

• Kuroda I

  Nec Corp. Kawasaki‐shi Jpn

• ISHII Daiji

  Multimedia Research Laborato ries, NEC Corporation

• Ishii Daiji

  Multimedia Research Laborato Ries Nec Corporation

• Kuroda Ichiro

  Multimedia Research Laboratories Nec Corporation

• KURODA Ichiro

  Multimedia Information Research Laboratories, NEC Corporation

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