Peter Lemenkov lemenkov
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| ffmpeg -y -r 25 -s 1280x1024 -f x11grab -i :0.0+0,0 -vcodec libvpx ~/screen.webm | |
| ffmpeg -y -r 25 -s 1280x1024 -f x11grab -i :0.0+0,0 -vcodec libx264 -vpre lossless_ultrafast ~/screen.mp4 |
lemenkov
/ gist:2947110
Last active
July 19, 2021 14:05
How to convert from any video format to mkv with ffmpeg/libav w/o recompressing
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| # "-fflags +genpts" - add this to regenerate packet timestamps (in case of error "Can't write packet with unknown timestamp") | |
| ./ffmpeg -fflags +genpts -i "/media/nfs/Nostromo/video/Japan Sinks (Nihon Chinbotsu) 1973 - WMV/NihonChinbotsu_1973.wmv" -acodec copy -vcodec copy ~/Desktop/NihonChinbotsu_1973.mkv |
lemenkov
/ gist:3713262
Created
September 13, 2012 09:44
How to verify SSL cert against a given Root cert
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| # CA-bundle -> Public Cert. | |
| openssl verify -CAfile ~/your-ca-bundle.crt ~/your-cert.crt |
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| 0 PCMU/8000 | |
| 0 PCMU/8000/1 | |
| 2 G721/8000 | |
| 2 G721/8000/1 | |
| 2 G726-32/8000 | |
| 2 G726-32/8000/1 | |
| 3 GSM/8000 | |
| 4 g723/8000 | |
| 4 G723/8000 | |
| 4 G723/8000/1 |
lemenkov
/ gist:4682245
Created
January 31, 2013 11:30
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| set terminal png | |
| set output "output.png" | |
| plot "~/feat.txt" u 1:2 with lines t 'Number of Features in Fedora' ; set xlabel "Release number" ; set ylabel "Features number" ; set xrange [6:20] ; set yrange [10:100] ; set xtics 1 ; set datafile separator "," | |
| replot |
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| yum remove sendmail | |
| yum remove Net* | |
| yum install vim-enhanced ssmtp fvwm xorg-x11-server-Xorg rxvt-unicode firefox git | |
| yum install xorg-x11-drv-evdev xorg-x11-drv-intel | |
| yum install net-tools avahi nss-mdns mc | |
| yum install xorg-x11-xdm |
lemenkov
/ gist:5821575
Created
June 20, 2013 09:53
How to mount SAMBA resource w/o password and w/o knowing SAMBA shares' names
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| $ sudo yum install cifs-utils samba-client | |
| $ smbclient -L 192.168.100.1 | |
| Enter petro's password: <press enter for empty password> | |
| Domain=[TIHON] OS=[Windows 7 Ultimate 7601 Service Pack 1] Server=[Windows 7 Ultimate 6.1] | |
| Sharename Type Comment | |
| --------- ---- ------- | |
| ADMIN$ Disk Удаленный Admin | |
| Bin.Win32 Disk | |
| C$ Disk Стандартный общий ресурс |
lemenkov
/ gist:5876905
Created
June 27, 2013 14:32
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| rpmbuild -bs erlang.spec --define '%el6 1' |
lemenkov
/ gist:5909154
Created
July 2, 2013 13:08
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| work ~: gnuplot | |
| gnuplot> set autoscale | |
| gnuplot> plot "results.sched_default" every::15000::50000 using 2 with lines , "results.sched_high" every::15000::50000 using 2 with lines , "results.sched_low" every::15000::50000 using 2 with lines | |
| gnuplot> replot |
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| * "real" build | |
| fedpkg clone mypackage | |
| cd mypackage | |
| koji-ppc build rawhide "$(fedpkg giturl)" | |
| * scratchbuild: | |
| koji-ppc build --scratch rawhide /path/to/yourpkg.src.rpm |