These libraries functionality is used not by the command-line-based FFmpeg executable only, but also by commercial and free software products via the corresponding FFmpeg libraries API calls. Introduction FFmpeg is a free open-source software project comprising a large set of libraries for multimedia handling. To illustrate concepts described, the open source 3D Streaming Toolkit is used. The tutorial focuses on Intel QSV based video encoding and decoding acceleration in Windows native (desktop) applications using FFmpeg/ libavcodec for video processing. Intel QSV is supported by all popular video processing applications across multiple OSes including FFmpeg. Since 2011 all Intel GPUs (integrated and discrete Intel Graphics products) include Intel Quick Sync Video (QSV) - the dedicated hardware core for video encoding and decoding.
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