High-Speed Distributed Video Transcoding for Multiple Rates and Formats(Computer Systems)
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概要
- 論文の詳細を見る
This paper describes a distributed video transcoding system that can simultaneously transcode an MPEG-2 video file into various video coding formats with different rates. The transcoder divides the MPEG-2 file into small segments along the time axis and transcodes them in parallel. Efficient video segment handling methods are proposed that minimize the inter-processor communication overhead and eliminate temporal discontinuities from the re-encoded video. We investigate how segment transcoding should be distributed to obtain the shortest total transcoding time. Experimental results show that implementing distributed transcoding on 10 PCs can decrease the total transcoding time by a factor of about 7 for single transcoding and by a factor of 9.5 for simultaneous three kinds of transcoding rates.
- 社団法人電子情報通信学会の論文
- 2005-08-01
著者
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Wakamiya Naoki
Department Of Information Networking Graduate School Of Information Science And Technology Osaka Uni
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Yu Dong
R&d Headquarters Ntt Data Corporation
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SAMBE Yasuo
R&D Headquarters, NTT DATA Corporation
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WATANABE Shintaro
R&D Headquarters, NTT DATA Corporation
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YU Dong
R&D Headquarters, NTT DATA Corporation
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NAKAMURA Taichi
School of Computer Science, Tokyo University of Technology
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Sambe Yasuo
R&d Headquarters Ntt Data Corporation
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Watanabe Shintaro
R&d Headquarters Ntt Data Corporation
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Nakamura Taichi
School Of Computer Science Tokyo University Of Technology
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