LinuxQuestions.org - [SOLVED] how to stream a webcam with python

I'm trying to stream/view a webcam via a python app. I've tried pygame and it works great with an actual pci capture card but v4l complains with even a well known can like logitech. Xawtv works fine with the logitech though.

In pygame I get

SystemError: ioctl(VIDIOC_S_FMT) failure: no supported formats

for the logitech cam.

Other than using an external app like xawtv is there any known ways to view via a python app? I don't want to record just view in 2 sizes 320x240 and 640x480 hopefully with command line switches.
here is the small view app using pygame

Code:

#!/usr/bin/env python



import pygame, sys

import pygame.camera

from pygame.locals import *

pygame.init()

pygame.camera.init()

screen = pygame.display.set_mode((320,240))

cam = pygame.camera.Camera("/dev/video4",(320,240))



cam.start()

while 1:

        image = cam.get_image()

        screen.blit(image,(0,0))

        pygame.display.set_caption(str("TUX PLOT CAM"))

        pygame.display.update()

        for event in pygame.event.get():

          if event.type == pygame.QUIT:

            sys.exit()