This file is indexed.

/usr/share/sensor_msgs/msg/CompressedImage.msg is in libsensor-msgs-dev 1.12.3-5.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
# This message contains a compressed image

Header header        # Header timestamp should be acquisition time of image
                     # Header frame_id should be optical frame of camera
                     # origin of frame should be optical center of cameara
                     # +x should point to the right in the image
                     # +y should point down in the image
                     # +z should point into to plane of the image

string format        # Specifies the format of the data
                     #   Acceptable values:
                     #     jpeg, png
uint8[] data         # Compressed image buffer