def GetCurrentFormat(self):
form = v4l2.v4l2_format()
form.type = v4l2.V4L2_BUF_TYPE_VIDEO_CAPTURE
xioctl(self.vd, v4l2.VIDIOC_G_FMT, form)
self.shape = (form.fmt.pix.height, form.fmt.pix.width) ##### self.shape
stp = v4l2.v4l2_streamparm()
stp.type = v4l2.V4L2_BUF_TYPE_VIDEO_CAPTURE
xioctl(self.vd, v4l2.VIDIOC_G_PARM, stp)
self.fps = stp.parm.capture.timeperframe.denominator/stp.parm.capture.timeperframe.numerator
if self.verbose:
print '--GetCurrentFormat'
print ' + width:', form.fmt.pix.width
print ' + height:', form.fmt.pix.height
print ' + pixelformat:', hex(form.fmt.pix.pixelformat)
print ' + sizeimage:', form.fmt.pix.sizeimage
#print 'Get:', self.shape, self.fps
return form, stp
def set_fps(self, fps):
setfps = v4l2.v4l2_streamparm()
setfps.type = v4l2.V4L2_BUF_TYPE_VIDEO_CAPTURE
setfps.parm.capture.timeperframe.numerator = 1
setfps.parm.capture.timeperframe.denominator = fps
fcntl.ioctl(self, v4l2.VIDIOC_S_PARM, setfps)
def update_frame_rate(self):
c = v4l2.v4l2_streamparm()
c.type = v4l2.V4L2_BUF_TYPE_VIDEO_CAPTURE
c.parm.capture.timeperframe.numerator = 1
c.parm.capture.timeperframe.denominator = 10
fcntl.ioctl(self.video.fileno(), v4l2.VIDIOC_S_PARM, c)