The only method available is from source. It can be added to your colcon workspace and be installed as usual.
# create workspace
mkdir -p new_ws/src
cd new_ws/src
# clone repo
git clone https://github.com/ivanpauno/rosbag2_to_video
cd ..
# install dependencies
rosdep install --from-paths src --ignore-src -y
# build workspace
colcon build
The tool has two entrypoints:
ros2 bag to_video
or
ros2 run rosbag2_to_video rosbag2_to_video
Use --help
to see options.