win10 ffmpeg-20200617-0b3bd00-win64-static.zip CPU i5-9400  
GPU  NVIDIA GTX 1660s ffmpeg -i ss11.mp4 -strict -2 -qscale 0 
-intra -c:v h264_nvenc ss111.mp4 I converted the mp4 video clips into key 
frames, using the above hardware and commands, the video became very blurred 
after the conversion. The video bit rate is very high and should not be the 
case. I often clip video into many clips. Direct merging will cause video 
length and video picture to be bothered by key frame problem, so I will convert 
video into key frame. In the past, on the old computer, I could convert the 
video into key frame through the above command and then merge. Now the new 
computer doesn't know why it will be very fuzzy after conversion. YouTube 
Update video https://youtu.be/feXEOfcTkVA or Play address  
 feXEOfcTkVA
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