[EMAIL PROTECTED] wrote: > Is there a video module so that I can write a Linux Python script to > record video coming over USB video cams?
You can open the device and read the images - I've done that before. No module needed. But I don't remember how things worked - just download the source for a simple viewer like gcqam and look at what they are doing. > > What about these side-thoughts: > > * What about recording multiple streams over multiple USB ports? (Think > in the context of a security system.) No deal, open several devices. > * What about lossy compression? Won't be doable in python in reasonable time - but there might be modules available for that, or at least libs you can wrap. Make your name honor... > * What about recording only time slices? Just wait the appropriate interval > * How would you provide real-time video to a security guard, but then > only write time-sliced, lossy compression to disk, saving disk space > yet providing something very suitable for a security guard to watch > live? Hrm - just _do_ it? But the problems are not on the python side - how is your guard going to retrieve the images, which bandwidth can he use and so on. Basically it boils down to - do the infrastructure and application functionality in python - delegate the compression to some c-backend Network and IO performance _shouldn't_ be too much of a concern using python, as it uses the underlying system's calls for that. But in the end, use a profiler :) -- Regards, Diez B. Roggisch -- http://mail.python.org/mailman/listinfo/python-list
