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RAM speed – generally important for most codec implementations. Processor cache size – low values sometimes cause serious speed degradation, e.g., for CPUs with low caches such as several of the Intel Celeron series. GPU usage by codec – some codecs can drastically increase their performance by taking advantage of GPU resources.
The video encoding was done for entertainment applications and twelve different bitrates were made for the nine video test sequences with a HM-8.0 HEVC encoder being used. Of the nine video test sequences, five were at HD resolution, while four were at WVGA (800×480) resolution. The bit rate reductions for HEVC were determined based on PSNR ...
[43] [44] The draft version of DivX HEVC 4K, 1080p, and 720p video profiles currently define only the video and DivX is planning to define other elements of the profiles in the future. [ 43 ] [ 44 ] The DivX HEVC 4K video profile allows for a maximum bit rate of HEVC Level 5.1 (40 Mbit/s) but the maximum number of samples per second is limited ...
AOMedia Video 1 (AV1) is an open, royalty-free video coding format initially designed for video transmissions over the Internet. It was developed as a successor to VP9 by the Alliance for Open Media (AOMedia), [2] a consortium founded in 2015 that includes semiconductor firms, video on demand providers, video content producers, software development companies and web browser vendors.
FFmpeg is a free and open-source software project consisting of a suite of libraries and programs for handling video, audio, and other multimedia files and streams. At its core is the command-line ffmpeg tool itself, designed for processing video and audio files.
x264, x265 and VTM video encoders can use AVX2 or AVX-512 to speed up encoding. Native Instruments' Massive X softsynth requires AVX. [50] dav1d AV1 decoder can use AVX2 and AVX-512 on supported CPUs. [51] [52] SVT-AV1 AV1 encoder can use AVX2 and AVX-512 to accelerate video encoding. [53]