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What are Profiles and Levels?

April 26, 2017levels Profiles

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What are Profiles and Levels?

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A. MPEG-2 Video Main Profile and Main Level is analogous to MPEG-1’s CPB, with sampling limits at CCIR 601 parameters (720x480x30 Hz or 720x576x24 Hz). “Profiles” limit syntax (i.e. algorithms), whereas “Levels” limit coding parameters (sample rates, frame dimensions, coded bitrates, etc.). Together, Video Main Profile and Main Level (abbreviated as MP@ML) normalize complexity within feasible limits of 1994 VLSI technology (0.5 micron), yet still meet the needs of the majority of applications. MP@ML is the conformance point for most cable and satellite TV systems.