Record specific window using ffmpeg

Question

I have been trying the below code (which I found on other similiar problem on this site here: How to record a specific window using ffmpeg But it gives me black video and the same video is not playable by windows media player (it works on vlc but with black video..)

ffmpeg -f gdigrab -framerate 30 -i title="german.avi - VLC media player" -b:v 3M  germ.flv

Video example: Weird thumbnail by WMP which shows it can't play it Black screen as described, but it opens with black video in VLC

I tried the other suggestions, but this one sometimes (less than 40% of the time) works. I also noticed it doesn't show the window main title, which is a bit confusing, as it causes the mouse cursor to appear a little down where it should be.

@Gyan can you explain more what does that add? more about the parameter? — Ahmed A. Mansour, Dec 04 '22 at 09:12

score 0 · Accepted Answer · answered Dec 05 '22 at 08:04

0

As @Gyan suggested, The answer is to add -pix_fmt parameter to the command, specifically this way:

ffmpeg -f gdigrab -framerate 30 -i title="WINDOW MAIN TITLE HERE" -b:v 3M -pix_fmt yuv420p output_FILENAME.mp4

This also seems to fix the wrong cursor position somehow, But still you can't see the window title bar in the video.

answered Dec 05 '22 at 08:04

Ahmed A. Mansour

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I still get black screen, any suggest? im using windows 10 – Manar Hidayat Feb 21 '23 at 13:43
@ManarHidayat where do you get it exactly? – Ahmed A. Mansour Feb 27 '23 at 08:18

Record specific window using ffmpeg

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