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Hello,

I wrote a python script that will directly output a video file from a ros bag without the need to convert them to images first. https://github.com/mlaiacker/rosbag2video

This tool will also convert the images to a fixed frame rate to get a real-time video.

You need to have avconv installed!

just type:

./rosbag2video.py yourbag.bag

and you will get a video file <topic>.mp4 with 25 fps and h264 encoded

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