This repository consists of a collection of automation scripts that I find useful when working with ROS projects. All of these scripts have been tested with ROS Kinetic on Ubuntu 16.04.
Contained within this repo are the following scripts:
This script will take a RosBag file that contains sensor_msgs/Image messages and convert them to a .mpg video file format. In addition, it can also be used to extract the frames to separate .jpg images. The script takes the following paramters:
Required
- -t the topic name from which the image bag was created.
Optional
- -p Change the temporary file directory name. The script will first extract all of the images to this path, then combine them together into a video. If not set, this defaults to "tmp".
- -o Change the output file name. If not set, then this defaults to "output.mpg"
- -s Save the temporary directory with the images. If this flag is not passed, then the script will delete the temporary directory with the extracted images.
- -f the number of frames per second for which the video was recorded. If not set, this defaults to 30.
- -n Do not create the video. If passed, then the video will not be created from the images. This is useful with the -s flag to extract the images. If not set, then the video will be created.
Sample usage:
$./Bag2Vid Images.bag -f 30
Dependencies:
- rosbag. This is included with the ros-desktop-full package
- ros imageview. This is included with the ros-desktop-full package
- mencoder. This can be installed on ubuntu with
$sudo apt-get install mencoder - bc This is a standard linux utility. If it's not installed, it can be installed with
sudo apt-get install bc
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