linux csa实时解扰工具
Realtime decoding needs ~1GhZ , API for CWs is included , Realtime playback with mplayer possible. CSA is an abbreviation for "Common Scrambling Algorithm", which is employed in almost every scrambled digital-tv-channels so far. Those MPEG-streams are encrypted with this algo, which needs an 8 byte seed for initialization (up until now, only 6 bytes are used, but this may change in the future), in order to be able to descramble the encrypted tv-service. This seed normally is obtained by a second algorithm, this second algorithm is the common known scrambling standard of the channel. Examples are : Irdeto, Seca, Viaccess, Cryptoworks, NDS, etc. This second algo is only needed, to get the seed for the CSA, which means that you can - if you know the correct seed for initializing the CSA - descramble any channel. 通过csa公共解扰算法对ts流解扰。这个是最初的版本，比较简单，容易集成。
