VVC Codec Due This Year is 50% More Efficient Than H.265, Says ATSC PT4
“History suggests” that new generations of video codecs are developed on seven-to-nine-year “cycles” and that each new generation reduces bit rate by up to half, said ATSC’s Planning Team 4 (PT4) in a “summary” report on future video technologies approved…
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Nov. 19 and posted Tuesday at atsc.org. PT4, chaired by Glenn Reitmeier, NBCUniversal senior vice president-advanced technology standards, began its review of future video technologies to study what “methods” are “available to us to add a codec” to ATSC 3.0, said ATSC in March (see 1903210057). MPEG’s “work plan” for the development of the next-generation Versatile Video Coding codec to be completed this year is targeting 50 percent “efficiency improvement” compared with the H.265 codec built into ATSC 3.0, said the report. MPEG also is working on the Essential Video Coding codec, which seeks “core profile performance” similar to H.265, using a set of “royalty-free coding tools,” also planned for completion in 2020, it said. EVC would be administered under “a simple, transparent licensing structure for a more efficient main profile promised within two years after publication,” it said. It’s “possible” that future video codec development “may become increasingly optimized toward specific applications,” said the report. “Given this possibility, future codec considerations for ATSC standards should include requirements driven by broadcast operations and business models, particularly in requirements such as compression efficiency and latency. ATSC needs to “communicate” those requirements to MPEG and other codec developers in “appropriate liaisons,” it said.