Change Resolution on astra ros sdk

I am using astra ros sdk, I have one Astra Pro with me. My requirement is 320*240 image resolution, my current system can not handle more than that. I search in astra.launch file and source code. Could not found a way to get the image in the desired resolution. Stuck here for a couple for days. Anyone can help here?

roslaunch astra_camera astra.launch
and on another tab : rostopic echo /camera/depth/camera_info

header:
seq: 93
stamp:
secs: 1580035308
nsecs: 958674662
frame_id: “camera_depth_optical_frame”
height: 480
width: 640
distortion_model: “plumb_bob”
D: [0.0, 0.0, 0.0, 0.0, 0.0]
K: [577.8889770507812, 0.0, 298.60101318359375, 0.0, 577.8889770507812, 245.95199584960938, 0.0, 0.0, 1.0]
R: [1.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 1.0]
P: [577.8889770507812, 0.0, 298.60101318359375, 0.0, 0.0, 577.8889770507812, 245.95199584960938, 0.0, 0.0, 0.0, 1.0, 0.0]
binning_x: 0
binning_y: 0
roi:
x_offset: 0
y_offset: 0
height: 0
width: 0
do_rectify: False

Hi, Raushankumar586,

Which image resolution do you want to change? the IR, depth or color?
It should be changed in the Astra SDK with ROS driver. (Latest version is available)

Wan