Re: [FFmpeg-user] Thumbnail tile slow on big video files

2017-05-18 Thread trash
Thanks Gyan! The file is exactly 3600 seconds long and I take 4 frames (20%,40%,60% and 80%). Adding /-t 2900 -skip_frame nokey/ would be the right thing to do? Will that be fast even with a 10Gig video file? Quoting Gyan : On Thu, May 18, 2017 at 5:53 PM,

[FFmpeg-user] Thumbnail tile slow on big video files

2017-05-18 Thread trash
Hi, I run the code below to produce a tile thumnail from video files. That seems to be very slow on big video files. Anything that I do wrong, or I could improve to speed up processing? ffmpeg -ss 720 -i $input_path -f image2 -vframes 1 -aspect 4:3 -filter:vf