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公开(公告)号：EP3700222A1
公开(公告)日：2020-08-26
申请号：EP18894655.2
申请日：2018-12-27
发明人： CHAKRABORTY, Chiranjib , LUO, Huamin , WANG, Zhitao , LI, Ning
IPC分类号： H04N21/4367 , G11B20/00 , H04N21/4147 , H04N21/432 , H04N21/433 , H04N21/434 , H04N21/4405 , H04N21/4627 , H04N5/76 , H04N21/44 , H04N21/4408 , H04N5/913
摘要： This application discloses a video recording apparatus and a video recording method. The video recording apparatus includes a first demultiplexer, configured to: separate program information, audio data, and video data from a transport stream; a marker, configured to: mark the separated audio data and the separated video data, and transmit a mixed stream to an encryption processor, where the mixed stream includes the program information, the marked audio data, and the marked video data; and the encryption processor, configured to: identify the audio data and the video data in the mixed stream, encrypt the identified audio data and the identified video data to obtain encrypted audio data and encrypted video data, and transmit the encrypted audio data, the encrypted video data, and the program information to a memory in a rich execution environment REE for storage, so as to implement video recording.
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公开(公告)号：EP3386206B1
公开(公告)日：2020-02-05
申请号：EP16883435.6
申请日：2016-12-26
IPC分类号： H04N21/4367 , H04N21/4405 , H04N21/4363 , G06F21/10 , G06F21/84 , H04L29/06 , H04N21/4627
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公开(公告)号：EP3386206A1
公开(公告)日：2018-10-10
申请号：EP16883435.6
申请日：2016-12-26
IPC分类号： H04N21/4367
CPC分类号： G06F21/84 , G06F21/10 , H04N21/2541 , H04N21/4363 , H04N21/4367 , H04N21/4405 , H04N21/4627
摘要： The present invention provides a method and an apparatus for controlling video output. The method includes: detecting in real time, by a security controller, whether an output resolution configured in a video display controller and an HDCP encryption status configured in an HDMI interface satisfy an HDCP protection requirement of a video; and when the HDCP protection requirement of the video is not satisfied, sending, by the security controller, an instruction to the video display controller, to instruct the video display controller to stop output of the video. It can be learned from the foregoing that when the HDCP protection requirement of the video is not satisfied, it indicates that a video driving module located in a rich execution environment REE is attacked. Consequently, the output resolution of the video display controller or the HDCP encryption status of the HDMI interface is tampered with. In this case, the output video is insecure, so that the security controller sends the instruction to the video display controller, to instruct the video display controller to stop the output of the video. Therefore, security of the video output is ensured.
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