Switching Facilities in MPEG-2: Necessary but Not Sufficient

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Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Volume: 104, No. 12, pp. 788–802
Abstract: MPEG-2 provides a number of facilities intended to permit the time concatenation of separately compressed program segments through the assemble and insert editing of those segments downstream from their encoding or release points. Such facilities are necessary to support some of the mechanical aspects of switching between segments in the assembly of programs and other continuity elements for release and in the downstream insertion of commercials. But the switching hooks provided in MPEG-2 transport stream packetization, however necessary they may be, are not sufficient to the task. Several operational steps must be taken for continuity integration to succeed in producing a smoothly flowing output without the appearance of a “channel change ” at the switching points. Indeed, for the successful integration of material encoded at different locations, these operational steps must be precisely defined and standardized. This paper examines the supporting functions provided by MPEG-2 and will suggest a number of areas in which agreement must be reached on operations practices before successful networks can be built.
Publication Date: 1995-12-01
DOI: 10.5594/J09590
ISSN: Print: 0036-1682
Link: https://doi.org/10.5594/J09590
Author(s): S. Merrill WeissElectronic media technology/management, Edison, NJ 08820.
Copyright: © 1995 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

ISO/IEC Standard 13818–1, “Information Technology — Generic Coding of Moving Pictures and Associated Audio — Systems.” . EXTERNAL
ISO/IEC Standard 13818–2, “Information Technology — Generic Coding of Moving Pictures and Associated Audio — Video.” . EXTERNAL
Grand Alliance HDTV System Specification , Version 2.0, Dec. 7, 1994 . EXTERNAL
U.S. Advanced Television Systems Committee (ATSC) Standard A/53 , “ATSC Digital Television Standard.” . EXTERNAL
U.S. Advanced Television Systems Committee (ATSC) Doc. A/54 , “Guide to the Use of the ATSC Digital Television Standard.” . EXTERNAL

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S. Merrill Weiss; Switching Facilities in MPEG-2: Necessary but Not Sufficient, SMPTE Journal ( Volume: 104, Issue: 12, December 1995); SMPTE, 1995. Available at https://doi.org/10.5594/J09590

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S. Merrill Weiss; Switching Facilities in MPEG-2: Necessary but Not Sufficient, SMPTE Journal ( Volume: 104, Issue: 12, December 1995); SMPTE, 1995. Available at https://doi.org/10.5594/J09590

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S. Merrill Weiss; Switching Facilities in MPEG-2: Necessary but Not Sufficient, SMPTE Journal ( Volume: 104, Issue: 12, December 1995); SMPTE, 1995. Available at https://doi.org/10.5594/J09590

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<span class="citation">S. Merrill Weiss; <cite>Switching Facilities in MPEG-2: Necessary but Not Sufficient</cite>, SMPTE Journal ( Volume: 104, Issue: 12, December 1995); SMPTE, 1995. Available at <a href="https://doi.org/10.5594/J09590" target="_blank" rel="noopener">https://doi.org/10.5594/J09590</a></span>

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S. Merrill Weiss; Switching Facilities in MPEG-2: Necessary but Not Sufficient, SMPTE Journal ( Volume: 104, Issue: 12, December 1995); SMPTE, 1995
doi: 10.5594/J09590
url: https://doi.org/10.5594/J09590

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<li>
S. Merrill Weiss; <cite id="bib-10-5594-j09590">Switching Facilities in MPEG-2: Necessary but Not Sufficient</cite>, SMPTE Journal ( Volume: 104, Issue: 12, December 1995); SMPTE, 1995
<span class="doi">10.5594/J09590</span>
</li>