In most ways, HEVC is an extension of the concepts in H.264/MPEG-4 AVC. As of 2019 , HEVC is used by 43% of video developers, and is the second most widely used video coding format after AVC. The High Efficiency Image Format (HEIF) is based on HEVC. Acting as the H.265 HEVC encoder for Mac enables you to encode all variety of video files including H.264, MP4, MOV, AVI, WMV, MPG, MKV, VOB, FLV, AVCHD, MXF, XviD, DivX, etc to H.265 MP4 in Mac OS X.While AVC uses the integer discrete cosine transform (DCT) with 4×4 and 8×8 block sizes, HEVC uses integer DCT and DST transforms with varied block sizes between 4×4 and 32×32. Fully compatible with Mac OS X El Capitan, Yosemite, Mavericks, Mountain Lion, etc. To make it more convenient for you view wonderful H.265 video on Mac, here we’ve collected best 5 HEVC players for you that are sompatible with macOS High Sierra.Effective use of these improvements requires much more signal processing capability for compressing the video, but has less impact on the amount of computation needed for decompression.HEVC was standardized by the Joint Collaborative Team on Video Coding (JCT-VC), a collaboration between the ISO/ IEC MPEG and ITU-T Study Group 16 VCEG. The primary changes for HEVC include the expansion of the pattern comparison and difference-coding areas from 16×16 pixel to sizes up to 64×64, improved variable-block-size segmentation, improved "intra" prediction within the same picture, improved motion vector prediction and motion region merging, improved motion compensation filtering, and an additional filtering step called sample-adaptive offset filtering. These redundant areas are then replaced with a short description instead of the original pixels.In October 2017, the standard was recognized by a Primetime Emmy Engineering AwardAs having had a material effect on the technology of television. Extensions for 3D video (3D-HEVC) were completed in early 2015, and extensions for screen content coding (SCC) were completed in early 2016 and published in early 2017, covering video containing rendered graphics, text, or animation as well as (or instead of) camera-captured video scenes. The second version, with multiview extensions (MV-HEVC), range extensions (RExt), and scalability extensions (SHVC), was completed and approved in 2014 and published in early 2015. The first version of the HEVC standard was ratified in January 2013 and published in June 2013.
![]() ![]() Osx H265 Player Free Alternative VideoThe licensing fees are one of the main reasons HEVC adoption has been low on the web and is why some of the largest tech companies ( Amazon, AMD, Apple, ARM, Cisco, Google, Intel, Microsoft, Mozilla, Netflix, Nvidia, and more) have joined the Alliance for Open Media, which finalized a royalty-free alternative video coding format AV1 on March 28, 2018. Patent licenses can be obtained directly from each patent holder, or through patent licensing bodies, such as MPEG LA, HEVC Advance, and Velos Media.The combined licensing fees currently offered by all of the patent licensing bodies are higher than for AVC. The ISO/IEC and ITU require companies that belong to their organizations to offer their patents on reasonable and non-discriminatory licensing (RAND) terms. Implementing a device or software application that uses HEVC may require a license from HEVC patent holders. ![]() Two approaches for standardizing enhanced compression technology were considered: either creating a new standard or creating extensions of H.264/MPEG-4 AVC. MPEG and VCEG established a Joint Collaborative Team on Video Coding ( JCT-VC) to develop the HEVC standard. Additional proposed technologies were integrated into the KTA software and tested in experiment evaluations over the next four years. The KTA software was based on the Joint Model (JM) reference software that was developed by the MPEG & VCEG Joint Video Team for H.264/MPEG-4 AVC. A software codebase called the KTA codebase was established for evaluating such proposals. In January 2005, at the next meeting of VCEG, VCEG began designating certain topics as "Key Technical Areas" (KTA) for further investigation. The ISO/ IEC Moving Picture Experts Group (MPEG) started a similar project in 2007, tentatively named High-performance Video Coding. NGVC would be able to provide 25% bit rate reduction along with 50% reduction in complexity at the same perceived video quality as the High profile, or to provide greater bit rate reduction with somewhat higher complexity. The preliminary requirements for NGVC were the capability to have a bit rate reduction of 50% at the same subjective image quality compared with the H.264/MPEG-4 AVC High profile and computational complexity ranging from 1/2 to 3 times that of the High profile. Standardization A formal joint Call for Proposals on video compression technology was issued in January 2010 by VCEG and MPEG, and proposals were evaluated at the first meeting of the MPEG & VCEG Joint Collaborative Team on Video Coding (JCT-VC), which took place in April 2010. By July 2009, experimental results showed average bit reduction of around 20% compared with AVC High Profile these results prompted MPEG to initiate its standardization effort in collaboration with VCEG. Early evaluations were performed with modifications of the KTA reference software encoder developed by VCEG. Playstation 4 games for macThe first working draft specification of HEVC was produced at the third JCT-VC meeting in October 2010. Starting at that meeting, the JCT-VC integrated features of some of the best proposals into a single software codebase and a "Test Model under Consideration", and performed further experiments to evaluate various proposed features. At that meeting, the name High Efficiency Video Coding (HEVC) was adopted for the joint project. Evaluations showed that some proposals could reach the same visual quality as AVC at only half the bit rate in many of the test cases, at the cost of 2–10× increase in computational complexity, and some proposals achieved good subjective quality and bit rate results with lower computational complexity than the reference AVC High profile encodings. On the same day, MPEG announced that HEVC had been promoted to Final Draft International Standard (FDIS) status in the MPEG standardization process. On January 25, 2013, the ITU announced that HEVC had received first stage approval (consent) in the ITU-T Alternative Approval Process (AAP).
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