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On August 13, 2014, Ittiam Systems announces availability of its third generation H.265/HEVC codec with 422 12-bit support. [94] On August 19, 2014, Nippon Telegraph and Telephone announced that support for the HEVC range extensions was added to their HEVC-1000 SDK software encoder which can encode video using the Main 4:2:2 12 profile. [95] [96]
The video sequences were encoded using the HM-12.1 HEVC encoder and the JM-18.5 H.264/MPEG-4 AVC encoder. The comparison used a range of resolutions and the average bit rate reduction for HEVC was 59%. The average bit rate reduction for HEVC was 52% for 480p, 56% for 720p, 62% for 1080p, and 64% for 4K UHD. [127]
Open the HEVC extension page. Click the "Get in Store app" button. Click the Get (or Install) button from the Microsoft Store. Windows 11 install HEVC for free.
HEVC Video Extensions is needed to play and produce HEVC-encoded video content. A small amount of money is charged for the use of the HEVC codec, whereas support for the generic HEIF format and the AVC and AV1 extensions are free. [37] [citation needed] Windows 11: since 22H2, Windows 11 has HEIF Image Extension built-in by default. [38]
The maximum NVENC HEVC coding tree unit (CU) size is 32 (the HEVC standard allows a maximum of 64), and its minimum CU size is 8. HEVC encoding also lacks Sample Adaptive Offset (SAO). Adaptive quantization, look-ahead rate control, adaptive B-frames (H.264 only) and adaptive GOP features were added with the release of Nvidia Video Codec SDK 7 ...
The HEVC standard defines two tiers: Main and High. [1] [2] The Main tier is a lower tier than the High tier. [1] [2] The tiers were made to deal with applications that differ in terms of their maximum bit rate. [1] The Main tier was designed for most applications while the High tier was designed for very demanding applications. [1]
The quality the codec can achieve is heavily based on the compression format the codec uses. A codec is not a format, and there may be multiple codecs that implement the same compression specification – for example, MPEG-1 codecs typically do not achieve quality/size ratio comparable to codecs that implement the more modern H.264 specification.
The eleventh generation of PureVideo HD, introduced with the Ampere-based GeForce RTX 30 series with fifth generation NVDEC, introduces 8K@60 hardware-decoding capability for AV1 Main profile (4:0:0 and 4:2:0 chroma subsampling with 8 or 10-bit depth) with resolution of up to 8192 x 8192 pixels to the GPU's video-engine.