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This article will explain in detail what kind of file format hevc is. The editor thinks it is very practical, so I share it for you as a reference. I hope you can get something after reading this article.

Hevc is not only an efficient video coding format, but also a new video compression standard to replace the H.264/AVC coding standard. The main features of HEVC include tree structure prediction and residual block segmentation, extended prediction block size, variable size block transformation, integer inverse transform, multi-frame motion compensation prediction and so on.

HEVC, the abbreviation of High Efficiency Video Coding, is a new video compression standard to replace the H.264/AVC coding standard. On January 26, 2013, HEVC officially became an international standard.

In 2004, the ITU-T Video coding expert Group (VCEG) began to study new technologies to create new video compression standards, and in October of the same year, the H.264/AVC team investigated potential technologies. At the VCEG meeting in January 2005, VCEG began to designate certain topics as "key technologies" for further research. In 2005, a software code base called Key Technical Areas (KTA) was established to evaluate these new "key technologies".

Video compression has become one of the indispensable home entertainment in our lives. Without it, we would live in a world with only dozens of TV channels around the world, which is simply unthinkable at the moment. Digital technology first appeared in the United Kingdom, when people already had televisions. Through the continuous evolution of digital technology, terrestrial TV channels rapidly developed from 5 to more than 30, greatly enriching people's daily life and entertainment.

Main features of HEVC

HEVC draft design, including various coding techniques:

Prediction and residual Block Segmentation of Tree structure

Expand the predicted block size (up to 64 × 64)

Variable size block transform (from 4x4 to 32x32 discrete cosine transform, and 4x4 discrete sine transform)

Integer inverse transform

Intra prediction and prediction types based on up to 33 directions

Based on pattern dependent sine / cosine transform

Adaptive Motion Vector Prediction and selection Mechanism (AMVP)

Merge mode and Skip mode based on Merge mode

Motion vector prediction based on space and time

Multi-frame motion compensation prediction

High precision motion compensation interpolation (luminance 8tap, chrominance 4tap)

Deblocking filter

Sampling adaptive filter (SAO)

Context adaptive binary arithmetic coding (CABAC)

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