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OpenH264 is a free software library for real-time encoding and decoding video streams in the H.264/MPEG-4 AVC ... FFmpeg supports OpenH264 as both an encoder and decoder.
x264 – H.264/MPEG-4 AVC implementation. x264 is not a codec (encoder/decoder); it is just an encoder (it cannot decode video). OpenH264 – H.264 baseline profile encoding and decoding; OpenVVC [1] an VVC /H.266 Real Time-Decoder for Mac OS, Windows, Linux and Android and special Version of FFmpeg, [2] which was used for Ateme Satellite ...
Blu-code is a professional H.264 encoder provided by Sony, aimed at Blu-ray-compliant HD production. OpenH264 is an open-source H.264 encoder and decoder implementation by Cisco, made available in December 2013.
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 commercial use of patented H.264 technologies requires the payment of royalties to Via and other patent owners. MPEG LA has allowed the free use of H.264 technologies for streaming Internet video that is free to end users, and Cisco paid royalties to MPEG LA on behalf of the users of binaries for its open source H.264 encoder openH264.
OpenH264 (baseline profile only) x264 (encoder only; supports some of Hi422P and Hi444PP features) FFmpeg (decoder only) MPEG-4 AVC variants: MPEG-4 Web Video Coding or MPEG-4 Part 29 – a subset of MPEG-4 AVC baseline profile; XAVC; HEVC (High Efficiency Video Coding, H.265, MPEG-H part 2) x265 (encoder only) Versatile Video Coding (H.266, VVC)
Free and open-source software portal; libavcodec is a free and open-source [4] library of codecs for encoding and decoding video and audio data. [5]libavcodec is an integral part of many open-source multimedia applications and frameworks.
A video coding format [a] (or sometimes video compression format) is a content representation format of digital video content, such as in a data file or bitstream.It typically uses a standardized video compression algorithm, most commonly based on discrete cosine transform (DCT) coding and motion compensation.