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Statistical Multiplexing of Video for Fixed Bandwidth Distribution: A multi-codec implementation and evaluation using a high-level media processing library
Linköping University, Department of Electrical Engineering, Information Coding.
2018 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

When distributing multiple TV programs on a fixed bandwidth channel, the bit rate of each video stream is often constant. Since video sent at a constant quality is typically wildly varying, this is a very unoptimal solution. By instead sharing the total bit rate among all programs, the video quality can be increased by allocating bit rate where it is needed. This thesis explores the statistical multiplexing problem for a specific hardware platform with the limitations and advantages of that platform. A solution for statistical multiplexing is proposed and evaluated using the major codecs used for TV distribution today. The main advantage of the statistical multiplexer is a lot more even quality and a higher minimum quality achieved across all streams. While the solution will need a faster method for bit rate approximation for a more practical solution in terms of performance, the solution is shown to work as intended.

Place, publisher, year, edition, pages
2018. , p. 72
Keywords [en]
video, statistical multiplexing, multiplexing, MPEG, AVC, HEVC, TV, encoding, encoder, transcoding, transcoder, Intel
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:liu:diva-150023ISRN: LiTH-ISY-EX--18/5142--SEOAI: oai:DiVA.org:liu-150023DiVA, id: diva2:1237211
External cooperation
WISI Norden AB
Subject / course
Information Coding
Supervisors
Examiners
Available from: 2018-08-09 Created: 2018-08-07 Last updated: 2018-08-09Bibliographically approved

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
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