Now click on Play and you should have a live video feed displayed in VLC.Set Video input frame rate to 30.00 as that is the max C930e supports.(I think).Set aspect ratio to 4:3 or 16:9 as desired.Now click on Advanced options and set the following values:.I put in 1920x1080 as that was the max supported for C930e. In Video size, put in the desired display resolution.Choose your webcam’s name from the Video device name and do the same for Audio device name drop down lists.In the dialog box that opens, set Capture mode to DirectShow.Launch VLC and click on Media and then on Open Capture Device.

Make sure webcam is connected to computer and functioning.

If anyone is still looking for how to do it in VLC, I got it to work for Logitech C930e which in theory should be very similar to C920. I’ll also test V4L2 on osx, hopefully that would be another solution. At the moment I have no clue how do to that, so even a minimal example would help a lot. My hunch is I’ll need to use DirectShow to access the camera but use the correct H264 filter (which I assume is the one used by Skype and the Logitech Webcam Software). cap.set(CV_CAP_PROP_FOURCC,CV_FOURCC('M','J','P','G')) Įllipse( frame, Point( 100, 100 ),Size( 50,50),0, 0,360,Scalar( 0, 0, 255 ),20,8 ) Īlso had a look at how ofVideoGrabber works and the DirectShow grabber is actually using videoInput library ( ).

using VLC/open capture > I get smooth/fluid video 1080p (might actually be close to 30fps, way better than what I get with opencv) but it’s a few frames behindįor reference here’s my OpenCV test: #includeĬap.set(CV_CAP_PROP_FOURCC,CV_FOURCC('H','2','6','4')).

using OpenCV’s VideoCapture class in c++ (I think it uses ffmpeg behind the scenes) > I get about 12/15fps with 1080p even though I’ve tried setting H264 or MJPG codecs.

I’ve also tried the cam on a mac like so: When I use GraphEdit (from the Windows 8 DirectShow SDK) the preview is very responsive, but I can’t change the capture pin to use MJPG 1080p I’m sttill missing a second Capture pin which is probably H264. Options: :dshow-vdev=Logitech HD Pro Webcam C920 :dshow-adev=none :dshow-size=1920x1080 :live-caching=10īut it’s super slow and does not display at 1080p I’ve been tinkering with VLC using DirectShow as source: Thanks done more snooping around and a few more tests.

Logitech c920s web cam