Delay between the first packet and last packet in the muxing queue is 10007271 > 10000000: forcing output If ffmpeg forces output, a message will appear in your log, e.g.: Max_interleave_delta option prevents ffmpeg forcing output. If you leave out the probesize option, ffmpeg will, by default, set the probesize to 5M. Raising the value by a few megabytes may cause A/V out of sync. The value of probesize appears to have much influence on the audio/video synchronisation. i "audio=Stereo-mix (Realtek High Definition Audio)" ^ I would like to add the command I use to capture the screen: ffmpeg.exe -y ^ you can record any sound from your pc with this command line (adapt the device you have): ffmpeg -f dshow -i audio="Realtek AC97 Audio" -acodec libmp3lame "c:\out.mp3" You can know your media devices with ffmpeg: ffmpeg -list_devices true -f dshow -i dummy I used the format video output as flv because i have the best rendering and small capacity.I dont success with mp4. NB: x11grab dont work on windows (it's specifically for Linux/X11)Ĭan use wscript.shell to code the line command silently. To capture video only can use ffmpeg -f dshow -i video="UScreenCapture" -vf crop=xwidth:xheight:xleft:xtop c:\output.flv ffmpeg -f dshow -i video="UScreenCapture":audio="Realtek AC97 Audio" -vf crop=xwidth:xheight:xleft:xtop c:\output.flv Xleft, xtop the coord of the top left point of the rectangle capture. Xwidth, xheight are the width
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