We’ve talked about H.265 and next-generation video encoding technologies several times in the past 12 months, but this is the first time we’ve had the chance to sit down with a next-generation encoder (albeit a pre-alpha version) to examine both performance and video quality. Right now, the project is very much in early days - pre-alpha level code - but the x265 encoder is already impressively parallelized and supports all of the major instruction sets including AVX/AVX2 and FMA3/FMA4. MCW is launching a new commercial open-source venture around x265, and the source code for its x265 encoder is now available. The next-generation High Efficiency Video codec (HEVC), H.265, has hit a major public milestone thanks to the work of the developer MultiCoreWare. Additional 3D-HEVC extensions for 3D video were completed in early 2015. The second version was completed and approved in 2014 and published in early 2015, and includes format range extensions (RExt) (supporting higher bit depths and the monochrome, 4:2:2, and 4:4:4 chroma sampling formats ), scalable coding extensions (SHVC), and multi-view extensions (MV-HEVC). The first version of the standard was completed, approved, and published in 2013. It can support 8K UHD and resolutions up to 8192×4320. ![]() It can alternatively be used to provide substantially improved video quality at the same bit rate. HEVC is said to double the data compression ratio compared to H.264/MPEG-4 AVC at the same level of video quality. ![]() = FFmpeg: The ultimate Video and Audio Manipulation Tool = ![]() What is HEVC? High Efficiency Video Coding, H.265, and 4K compression explainedĬompression (the good, the bad, and the lossy) H.265 benchmarked: Does the next-generation video codec live up to expectations?
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