use video_recorder of image_view to recorde video of a image topic

while you need install the image_view package in ros environment.

and run roscore and video_recorder. its' param is as following:

~filename (string, default: output.avi)

• Path and name of the output video.

~fps (int, default: 15)

• Framerate of the video.

~codec (string, default: MJPG)

• The FOURCC identifier of the codec.

~encoding (string, default: bgr8)

• The image color space of the video.

an example is as following:

rosrun image_view video_recorder image:=/kinect2/hd/image_color _fps:=30

At last, if you do not change default saving directory, you will find the video created by video_recorder in home directory and the default name is output.avi.