I try to convert a video to an encrypted video using VLC by command:
vlc -I dummy input.mkv --sout='#std{access=file, mux=ts{csa-ck=THISISMYKEY,use-key-frames},dst=./output_enc.mkv}' --sout-all --sout-keep vlc://quit
All are OK and I could play the output video by command:
vlc --ts-csa-ck=THISISMYKEY ./output_enc.mkv
However, the frame rate of output video is 60fps instead of 30fps of original input. I want to keep all input video parameters. What should I do?
Many thanks!