Tue, 11 Dec 2001 14:39:22 -0500 - bacterium@xxxxxxx > Hello. > Would it be possible to write a virtual video device (i.e. no hardware) > that would take a series of frames and dump them to /dev/video as a > video sequence which could then be viewed by another app? Has anyone > already done this? Any hints on how I could do this? (Source code > samples appreciated.) Ideally, it would be done without a kernel module > (i.e. in user space). The v4l api draft isn't terribly descriptive. > > Thanx, > Adrian. You can create a user-space *anything* which reacts to read/write/open/close/ioctl just as any hardware device with the help of FUSD. For example create a userspace soundcard which does audioprocessing your real hardware isn't capable of. The userspace process uses FUSD to create whatever devicefiles it needs. Some overhead must be expected, so high-bandwidth applications needs more hardware. Latency may also become an issue. See: http://www.circlemud.org/~jelson/software/fusd/ Dag B
