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Old 3rd May 2019, 08:11   #16  |  Link
TEB
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Join Date: Feb 2003
Location: Palmcoast of Norway
Posts: 363
Same issue here:

/ffmpeg -loglevel verbose -i 35543_1080p_25.mov -vf scale=960:540 -pix_fmt yuv420p10le -codec:v libx265 -x265-params keyint=100:min-keyint=200:no-open-gop=1:nal-hrd=VBR:force-cfr -level 5.1 -profile:v main10 -preset slow -crf 23 -maxrate 3M -bufsize 3M -force_key_frames "expr:eq(mod(n,100),0)" -c:a:0 aac -ac:a:0 2 -ab:a:0 128k -y foo_crf23_3.mp4


OS: RHEL 7.3 x64
CPU : Intel(R) Xeon(R) Silver 4114 CPU @ 2.20GHz x 2
So 40 "cores"
ffmpeg 4.1.3 static

Can never get over 10% usage with 1 encode job..
Any tips? Ive tried ffmpeg threads = 20... didnt help much..
Mov file is local
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