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The ionCube Loader uses the technique of on-the-fly patching of compiled code in memory to achieve back compatibility of running older files on newer versions of PHP. [ 1 ] [ 2 ] The encoding products were subsequently ported to FreeBSD , Microsoft Windows and Mac OS X , and the range of products expanded to offer additional features such as ...
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Most PHP accelerators work by caching the compiled opcode/bytecode of PHP representation of php files to avoid the overhead of parsing and compiling source code on each request (some or even most of which may never be executed).
A video decoder is an electronic circuit, often contained within a single integrated circuit chip, that converts base-band analog video signals to digital video. [1] Video decoders commonly allow programmable control over video characteristics such as hue , contrast , and saturation .
Unified Video Decoder (UVD, previously called Universal Video Decoder) is the name given to AMD's dedicated video decoding ASIC. There are multiple versions implementing a multitude of video codecs, such as H.264 and VC-1. UVD was introduced with the Radeon HD 2000 Series and is integrated into some of AMD's GPUs and APUs.
Like most desktop hardware-accelerated encoders, Quick Sync has been praised for its speed. [5] The eighth annual MPEG-4 AVC/H.264 video codecs comparison showed that Quick Sync was comparable to x264 superfast preset in terms of speed, compression ratio and quality (); [6] tests were performed on an Intel Core i7-3770 processor.
Matrix decoding is an audio technology where a small number of discrete audio channels (e.g., 2) are decoded into a larger number of channels on play back (e.g., 5). The channels are generally, but not always, arranged for transmission or recording by an encoder, and decoded for playback by a decoder.
A quadrature decoder converts the A and B signals from an incremental encoder into direction and count enable signals, which are used to control a synchronous up/down counter Incremental encoder interfaces commonly use a quadrature decoder to convert the A and B signals into the direction and count enable (clock enable) signals needed for ...