This package provides sources for dvswitch: . dvsource-alsa captures audio from an ALSA device. . dvsource-file reads DV frames from a file and sends them at the normal frame rate. . dvsource-firewire reads DV frames from a camera or other device connected by Firewire (1394). . dvsource-v4l2-dv reads DV frames from a Video4Linux2 device such as a USB-connected DV camera.