MPEG-2 [1] video compression has been around for 10 years, but a compelling new alternative known as MPEG-4 AVC [2] is now available. The advantage of AVC over the older MPEG-2 is increased efficiency. AVC (also known as MPEG-4 Part 10 and H.264) delivers video at half the bit rate of MPEG-2.
AVC was jointly developed by the ITU-T and ISO/MPEG standard committees. Based on MPEG-2 foundations it is designed to carry signals over the existing MPEG-2 transport and modulation infrastructure. The encoding and decoding elements of AVC are complex and technically challenging, ensuring that AVC technology will improve over a substantial period of time before the technology matures.
Products based on MPEG-4 AVC are now ready for deployment, enabling operators to deliver standard-definition (SD) video at significantly lower bit rates. This paper will outline how AVC has evolved from the familiar MPEG-2 methods and describe the practical technology required to deliver both SD and high-definition (HD) AVC content.
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VODxchange: Enabling Local Content Deployment Over an IPTV Network
The success of an IPTV service is largely driven by the selection, packaging, and presentation of content. Programming choices and subscriber involvement are the two most critical factors when it comes to developing a successful content strategy for any IPTV service provider.
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Can you Afford IPTV? How AVC Puts IPTV Revenue Within Reach of ILECs and CLECs
For telco service providers, it is no longer an effective business strategy to rely on what has worked in the past. Legislative changes have paved the way for increased competition, and technology has brought about evolutionary changes in the business models of other types of service providers. Traditional cable providers are delivering bundled services with video + data + telephony, and customers are enticed by the choices they now have. Some subscribers are leaving their CLEC and ILECs for an all-in-one offering from their cable MSO. To keep their businesses healthy, generate incremental revenues, and maintain satisfied customers, traditional telcos must rise to meet this new challenge. But for many, the question is: how?
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After many years of false starts, high definition television is now overcoming all of the technical economies obstacles that have hampered its introduction. There is now abundant HD content available while HD-capable receivers are attaining mass market price points. HD is finally being heavily promoted my the major cable and DTH operators in the US market. HD is also strongly positioned in Australia, Korea and Japan and is once again getting attention from European countries. The availability of HD AVC is very timely. The challenges are being overcome and prototypes of affordable real-time HD AVC solutions have already been demonstrated. In addition, the availability of low-cost HD AVC set top boxes will mean that HD AVC will be a deployable reality in 2006.
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Noise is the technical definition for various anomalies and variations that get added to a signal. Noise takes many forms and originates from many sources, although the most common type of noise is random noise. Although many studios and head ends have the latest in SDI interfaces, operators still confront content that contains noise. A good example is news items as they frequently contain noisy sequences.
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This white paper introduces the principles, benefits and performance expectations that are made possible by the Constrained Fidelity CBR feature of Modulus Video AVC encoders. Constrained Fidelity CBR (CF-CBR) offers to reclaim CBR bandwidth and introduce some of the benefits of statistical multiplexing into an IPTV switched broadcast application.
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MPEG-4 AVC - The Evolution Continues
Click here to view the TecPreview presentation from the Broadband World Forum Americas on September 12, 2006. Bob Titus, Product Manager, presents a paper on the continuing evolution of MPEG-4 AVC. Registration is FREE.
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