dvswitch software package provides basic video mixer for live DV streams, you can install in your Debian 7 (Wheezy) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install dvswitch
dvswitch is installed in your system.
Make ensure the dvswitch package were installed using the commands given below,
$ sudo dpkg-query -l | grep dvswitch *
You will get with dvswitch package name, version, architecture and description in a table
| Distro | Debian 7 wheezy |
| Section | Video |
| Package | dvswitch |
| Version | 0.8.3.6-1+b2 [amd64, armel, i3 |
| Description | basic video mixer for live DV streams |
| Sub Section | Video |