extract video tracks from video files with ffmpeg
extract video track without audio from video files
extract the video track from a single file
ffmpeg -i infile.mp4 -an -c:v copy outfile.mp4
batch extract the video tracks from all the mp4s in the current directory
find -s . -type f -name "*.mp4" -exec sh -c \
'ffmpeg -i "${0}" -an -c:v copy "${0%.*}-extracted.mp4"' \
"{}" \;
