camera_info override

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Hi! I've been using an android app to pipe the camera image into ROS.

This works moderately well, even though there is some lag to get the image.

The problem is that the published /camera/camera_info is all empty. (see below)

Is there a way I can override the camera_info topic with the calibration data I've gathered, and bypass what the AndroidCameraViewer driver reports ?

Thank you

Output of :

$ rostopic echo /camera/camera_info 

header: 
  seq: 7485
  stamp: 
    secs: 1412290798
    nsecs: 453000000
  frame_id: camera
height: 960
width: 1280
distortion_model: ''
D: []
K: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
R: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
P: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
binning_x: 0
binning_y: 0
roi: 
  x_offset: 0
  y_offset: 0
  height: 0
  width: 0
  do_rectify: False