[FFmpeg-user] Screen Capture - Windows 10

Ron Barnes rbarnes at njdevils.net
Thu Jun 1 23:19:49 EEST 2017

I was able to install the screen capture recorder and still no joy.  How do the commercial vendors do it?

-----Original Message-----
From: ffmpeg-user [mailto:ffmpeg-user-bounces at ffmpeg.org] On Behalf Of Moritz Barsnick
Sent: Thursday, June 1, 2017 3:39 PM
To: FFmpeg user discussions <ffmpeg-user at ffmpeg.org>
Subject: Re: [FFmpeg-user] Screen Capture - Windows 10

On Thu, Jun 01, 2017 at 08:59:50 -0400, Ron Barnes wrote:
> Does anyone see where I may have gone south in the script below or the 
> hardware I'm using?  If possible, would someone offer an alternate 
> script I can try?

As already mentioned, the hardware acceleration of your browser can apparently not be captured.

> ffmpeg -y -rtbufsize 2000M -f gdigrab -thread_queue_size 1024 
> -probesize 50M -r 30 -video_size 1920x1080 -draw_mouse 1 -i desktop -f 
> dshow -i audio="Stereo Mix (Realtek High Definition Audio)" -c:v 
> libx264 -r 30 -preset ultrafast -tune zerolatency -crf 25 -pix_fmt 
> yuv420p -c:a aac -strict -2 -ac 2 -b:a 96k -y "I:\Captured\TestAV.mp4"

You're using gdigrab for video. Have you tried adding the dshow capture device?

If you install it, your "ffmpeg -list_devices true -f dshow -i dummy"
should show a new video device "screen-capture-recorder". Perhaps that works for you. (I have no experience with it - it may suffer the same limitation. Please do report.)

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