METHOD AND DEVICE FOR DESCRAMBLING MEDIA DATA BLOCKS
摘要
<p>A method and device for descrambling media data blocks are provided, and the method includes the following steps: control words from a conditional access system are received by a descrambling module; the control words are saved by the descrambling module; media data blocks from a demultiplexing module are received by the descrambling module; and the media data blocks are descrambled by the descrambling module with the saved control words. The play of program stream is ensured by the present invention.</p>
