Record a screencast and convert it to an mpeg

ffmpeg -f x11grab -r 25 -s 800x600 -i :0.0 /tmp/outputFile.mpg

Grab X11 input and create an MPEG at 25 fps with the resolution 800x600

By: dcabanis

2009-06-05 21:11:17

video X11 ffmpeg

5 Alternatives + Submit Alt

Capture video of a linux desktop

Proper screencast with audio using ffmpeg and x264, as per http://verb3k.wordpress.com/2010/01/26/how-to-do-proper-screencasts-on-linux/
This is sample output - yours may be different.
12

ffmpeg -y -f alsa -ac 2 -i pulse -f x11grab -r 30 -s `xdpyinfo | grep 'dimensions:'|awk '{print $2}'` -i :0.0 -acodec pcm_s16le output.wav -an -vcodec libx264 -vpre lossless_ultrafast -threads 0 output.mp4

NoahY · 2010-11-19 09:31:56 8
Capture video of a linux desktop
This is sample output - yours may be different.
6

ffmpeg -f x11grab -s `xdpyinfo | grep 'dimensions:'|awk '{print $2}'` -r 25 -i :0.0 -sameq /tmp/out.mpg > /root/howto/capture_screen_video_ffmpeg

brubaker · 2010-03-27 21:31:34 6
Capture video of a linux desktop

This will grab the image from desktop, starting with the upper-left corner at x=100, y=200 with a width and height of 1024?768.
This is sample output - yours may be different.
2

ffmpeg -video_size 1024x768 -framerate 25 -f x11grab -i :0.0+100,200 output.mp4

balnaimi · 2019-01-21 11:22:37 35
Capture video of a linux desktop

This is identical to the original command, but allows you to specify an offset if you have multiple monitors. In this case you'll record a 1366x768 window that's offset by 1366 pixels in the x axis and 0 pixels in the y axis. Note also that the -sameq option has been replaced by -qscale - at least in ffmpeg version 1.2.1 on Fedora 19.
This is sample output - yours may be different.
1

ffmpeg -f x11grab -s wxga -r 25 -i :0.0+1366,0 -qscale 0 /tmp/out.mpg

MickO · 2013-07-31 14:07:26 7
Capture video of a linux desktop

Either use gtk-recordMyDesktop or qt-recordMyDesktop, which are GUIs for recordmydesktop command.
This is sample output - yours may be different.
0

gtk-recordMyDesktop

denilsonsa · 2013-06-21 02:32:52 8

What Others Think

I tried increasing the size to fit the whole screen but it doesn't work, why?

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The 25 is a bit redundant - the default FPS is already set to 25.

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create screencast (record text and audio simultaneously) using 'script' and 'arecord'

Convert all files *.mp4 to *.mpeg using ffmpeg (Windows Cmd line)

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Record your desktop

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