Balancing New and Old, Multi-Channel Encoders Delivering MPEG-2 and MPEG-4 AVC Workflow Efficiencies

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Publisher: SMPTE — White Plains, NY
Doc Type: Conference Paper
Content Type: Original Research
Volume: 2009, No. 10, pp. 1–10
Abstract: Compression encoding is in a state of transition, MPEG-2 is the dominant incumbent for standard definition whereas MPEG-4 AVC is the promising upstart, catering for both handheld and high definition applications. MPEG-2 has been written off by many as being a standard that has been fully developed leaving no room for improvement. However, broadcasters have forced the issue of further MPEG-2 improvements to protect the significant infrastructure investment and seek more revenue from existing platforms. Technology advances have allowed new theoretical algorithms to be applied to MPEG-2 and MPEG-4 AVC encoders resulting in a range of new and unfamiliar techniques being deployed. Look-ahead, adaptive pre-processing, rate-distortion optimisation, hierarchical B frames, sub pixel motion estimation, variable block size and high profile support are all terms used to justify the improvements implemented on the latest generation of encoders. But what do these terms mean, which compression standard do they apply to and, most importantly, what efficiencies can these techniques deliver? The first part of the paper will explain these techniques and outline the potential benefits. The second part of this paper will compare and contrast the options for multi-stream encoding. Streaming is now becoming a serious issue for broadcasters seeing their audiences fragment in terms of viewing preferences and play-out platforms. Catering for live and offline content consumption on a range of devices use to imply further workflow steps. Cost conscious broadcasters are now looking to source encoders to produce multiple streams to improve workflow and reduce overheads.
Publication Date: 2009-10-01
DOI: 10.5594/M001324
Link: https://doi.org/10.5594/M001324
Author(s): Ian Trow
Copyright: © 2009 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

1 Liu C. , 1997 . Multimedia Over IP: RSVP, RTP, RTCP, RTSP. EXTERNAL
2 Trow I 2006 Realizing IPTV and Mobile Convergence over existing IP Networks . EXTERNAL
3 Trow I 2004 Application of New Advanced Video Coding Schemes . EXTERNAL

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Ian Trow; Balancing New and Old, Multi-Channel Encoders Delivering MPEG-2 and MPEG-4 AVC Workflow Efficiencies, SMPTE Meetings and Conferences ( October 2009); SMPTE, 2009. Available at https://doi.org/10.5594/M001324

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Ian Trow; Balancing New and Old, Multi-Channel Encoders Delivering MPEG-2 and MPEG-4 AVC Workflow Efficiencies, SMPTE Meetings and Conferences ( October 2009); SMPTE, 2009. Available at https://doi.org/10.5594/M001324

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<span class="citation">Ian Trow; <cite>Balancing New and Old, Multi-Channel Encoders Delivering MPEG-2 and MPEG-4 AVC Workflow Efficiencies</cite>, SMPTE Meetings and Conferences ( October 2009); SMPTE, 2009. Available at <a href="https://doi.org/10.5594/M001324" target="_blank" rel="noopener">https://doi.org/10.5594/M001324</a></span>

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Ian Trow; Balancing New and Old, Multi-Channel Encoders Delivering MPEG-2 and MPEG-4 AVC Workflow Efficiencies, SMPTE Meetings and Conferences ( October 2009); SMPTE, 2009
doi: 10.5594/M001324
url: https://doi.org/10.5594/M001324

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<li>
Ian Trow; <cite id="bib-10-5594-m001324">Balancing New and Old, Multi-Channel Encoders Delivering MPEG-2 and MPEG-4 AVC Workflow Efficiencies</cite>, SMPTE Meetings and Conferences ( October 2009); SMPTE, 2009
<span class="doi">10.5594/M001324</span>
</li>