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 Forum index » House Training » HOWTO ( Solutions )
[vlc] record open windows
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fabrice_035


Joined: 28 Apr 2014
Posts: 767
Location: Bretagne / France
PostPosted: Sun 04 Nov 2018, 10:44    Post subject:  [vlc] record open windows
Subject description: record Window, not region !		  
Hey,

I use version 2.1.6 of vlc and I discovered that it was possible to save a window, so a program in progress. Not a region, real window.

You can move the window and the recording still works

I use this command, first list open window

Code:

wmctrl -l


next record the chosen window, without sound :

Code:

vlc -I dummy window://0x4d8bd3 --screen-fps=20 --sout=#transcode{vcodec=h264,vb072}:standard{access=file,mux=mp4,dst=capture.mp4}


next exemple, with sound (i use pulseaudio)

Code:

vlc -I dummy window://0x3a00001 --screen-fps=30 --input-slave pulse://alsa_output.pci-0000_01_00.1.hdmi-stereo.monitor --sout='#transcode{vcodec=h264,vb072,acodec=mp3,ab=128}:standard{access=file,mux=mp4,dst=capture.mp4'


Be carefull with video codec, vlc send error code:


Code:

[0xb19141b0] x264 encoder error: cannot open x264 encoder
[libx264 @ 0xb1937b60] height not divisible by 2 (780x641)


You need resize window and find good size.

The result, i record a Firefox session:
http://gongzone.chez.com/vlc_record_firefox.mp4

And wine session (with "rebirth" program) and sound
http://gongzone.chez.com/rebirth_capture_vlc.mp4

There is a defect, the mouse is never visible.

Did you know about this trick? Shocked

Regard.
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