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------- FFdecsa ------- version 1.0 Copyright 2003-2004 fatih89r released under GPL FFdecsa is a fast implementation of a CSA decryption algorithm for MPEG TS packets. It is shockingly fast, more than 800% the speed of the fastest implementation I can find around. (read the docs to know what FF stands for) On an AthlonXP 2400 (2000MHz) it achieves 165Mbit/s; the previous record was around 20Mbit/s. This means that: - decrypting a 8Mbit/s stream takes 5% of CPU instead of 40% - decrypting a full transponder (with all its channels or with a big HDTV stream) carrying 38Mbit/s takes 23% of CPU instead of 190% (>100%, so undecryptable in real time) - a very slow processor can decrypt one channel with no problems - offline decoding of one hour of a 5Mbit/s channel takes less than two minutes (30x than realtime) - offline decoding will work at more than 20MB/s (megabytes/s), nearly as fast as a file copy The docs directory contains useful stuff: FAQ.txt to know something more about this software how_to_compile.txt if you want to compile this code (and get optimal speed) how_to_use.txt if you want to use this code technical_background.txt if you want to understand how this code works or you want to modify/improve it how_to_understand.txt if you want to understand the code to make modifications how_to_release.txt if you want to release modified versions of the code fatih89r