Video compression in transition

摘要

Broadcasters and service providers have a wide variety of options to consider when choosing the correct compression strategy for the contribution and distribution of broadcast content.rnWith significant investment in MPEG-2, broadcasters are keen to see vendors addressing the need for greater SD compression efficiency for distribution applications. Higher channel densities and the trend for larger flat screens have resulted in renewed interest in re-evaluating MPEG-2 for further compression gains in an environment where bandwidth is both scarce and expensive. HD distribution started with MPEG-2 over cable and satellite, but many HD services are now possible as a result of the compression efficiencies attainable with MPEG-4AVC.