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High Efficiency Video Coding

1

High Efficiency Video Coding, also known as H.265 and MPEG-H Part 2, is a video compression standard, designed as a successor to the widely used AVC.

MPEG-H is a group of international standards under development by the ISOIEC 23008 – High efficiency coding and media delivery in heterogeneous environments.

2

In comparison to AVC, HEVC offers from 25% to 50% better data compression at the same level of video quality, or substantially improved video quality at the same bit rate.

In signal processing, data compression, source coding, or bit-rate reduction involves encoding information using fewer bits than the original representation.

In telecommunications and computing, bit rate is the number of bits that are conveyed or processed per unit of time.

3

It supports resolutions up to 8192×4320, including 8K UHD, and unlike the primarily 8-bit AVC, HEVC's higher fidelity Main10 profile has been incorporated into nearly all supporting hardware.

4

HEVC is competing with the AV1 coding format for standardization by the video standard working group NetVC of the Internet Engineering Task Force.

The Internet Engineering Task Force is an open standards organization, which develops and promotes voluntary Internet standards, in particular the standards that comprise the Internet protocol suite.

AOMedia Video 1 is an open, royalty-free video coding format designed for video transmissions over the Internet.

The Internet Video Codec is a standardization project for a royalty-free video codec hosted by the IETF.

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