linux - How to capture screenshots from a video clip 50 minutes into the clip and do it fast? -


OK It seems that whenever I tell the framemap to take half way through a screen cap, though clip (clip 10 hours) It uses 100% of 1 CPU core and it takes ages ... whereas if I make it a frame initially, then it gets very fast, as it scans, though The video has to go in the middle instead of just jumping for it!

The code currently came here: 

  ffmpeg -y -itsoffset - "500" -i "clipname.mov" -exclusive png -vframes 1 -an -f This may take a few minutes.  
 These are HD video too, allocated at 720p / 1080p and when they are raw unpublished clips ( 
 so I was hoping for some better software that would be from video Screen Capture is very fast (Linux and Script should be Qualified).   
 
 
 Instead of delays (< Code> -ss  flag) ( -itsoffset ), that means: 
 
  ffmpeg -y -ss 3000 -i "clipname.mov "-Weem 1" clip clip Yance: 2001.png "

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