Chroma key (green screen) live for a webcam

camerav4l

Is there a way to apply chroma key live to a stream that's used in video conferencing. Webcam works fine though v4l (Cheese, Ekiga).

This but in Linux.

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I use OBS with obs-v4l2sink, and v4l2loopback. I had to build all that (including OBS) from source to get it working in Fedora, but it works.

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Skype doesn’t work with webcam A4Tech PK-130MG

The link you refer deals with 32-bit libraries to support video in Skype. This is not your problem, yet.

According to this discussion it seems that your webcam is supported by GSPCA driver. Nevertheless you have to provide some more information related to issue:
uname -a # I don't even know if your system is 64-bit or 32-bit.
lsusb # I suppose your camera is usb from a picture. lsmod|grep gspca # To make sure if the GSPCA driver is loaded.

You might also have a look at Mandriva QC guide. Even thou is different distro and different webcam it provides some useful information.

Rotate webcam as well as screen (portrait mode)

You might be able to do this as described here. Install and modprobe the v4l2loopback module (you may need to compile it) to create a new video device, then copy the webcam video stream to it via ffmpeg:

ffmpeg -f v4l2 -i /dev/video0 -vf transpose=1 -f v4l2 /dev/video1

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Related Solutions

Skype doesn’t work with webcam A4Tech PK-130MG

Rotate webcam as well as screen (portrait mode)

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