FFDecsa

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 standard single packet implementation.
Thanks fatih89r for your exceptional work !

Performance

  • AMD Duron @ 1.6 GHz : 160 Mbit/s (Mode: 128_SSE)
  • Intel P4 @ 3.0 GHz : 310 Mbit/s (Mode: 128_SSE2)
  • Intel E8400 @ 3.0 GHz : 668 Mbit/s (Mode: 128_SSE2)
  • Intel Core i3 @ 3.4 GHz : 1130 Mbit/s (Mode: 128_SSE2)

(test dlls was compiled using gcc.exe v4.8.1)

How to compile on windows

  1. Download installer from www.mingw.org and install packages:
    “mingw32-base”, “mingw32-gcc-g++”, “msys-base”
  2. Run StartShell.cmd from FFDecsa sources directory
  3. Optional: edit make_dlls.sh and makefile with your options
  4. From shell, run make_dlls.sh

Changelog

  • v1.0.0
    • public release by fatih89r
  • v1.0.1-Altx
    • added windows compatibility
    • removed FFdecsa_test.c
    • updated makefile
    • batch build script (make_dlls.sh)
  • v1.0.2-Altx
    • added MEMALIGN_16 & SSE2

Legal

As FFdecsa implements a standard, it is completely legal to use it.

Download

zip
FFDeCsa-1.0.2-Altx.zip (38.0 KiB)
MD5: 246a9dce174298c96103a1c9c845b1b6
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