Record .bag file containing miscalenous topics (not only RealSense)

[MTDzi]

Required Info
Camera Model	D435
Firmware Version	05.10.13.00
Operating System & Version	Ubuntu 16 / Ubuntu 16
Kernel Version (Linux Only)	4.15.0-43 / 4.4.38-tegra
Platform	PC / NVIDIA Jetson TX1
SDK Version	2.17.1
Language	python
Segment	Robot

Issue Description

I would like to record a ROS .bag file on my Jetson TX1, capturing data from two topics: /camera/depth/image_rect_raw and /joy. Then, I would like to read the .bag file, use some combination of post-processing functions, and serialize the data (doesn't matter how, but let's say: to TFRecord).

I produced a .bag file using rosbag record -O whatever --lz4 /joy /camera/depth/image_rect_raw, but when I used this script, I learned that:

  File "rs_extract_frames.py", line 47, in <module>
    pipeline.start(config)
RuntimeError: Failed to resolve request. Request to enable_device_from_file("house/bags_2019-01-06-14-33-36.bag") was invalid, Reason: Failed to create ros reader: Invalid file format, file does not contain topic "/file_version" nor "/FILE_VERSION"

So, my question is: how should I record a .bag file containing all the necessary data for later post-processing experiments?

[dorodnic]

SDK ROS-bag is (mostly) valid ROS-bag, but not every ROS-bag can be opened by the SDK.
src/media/readme.md
doc/sample-data.md
There are ways to record external data in SDK ROS-bag format, but for what you are trying to do, I'd recommend to use ROS alternatives. librealsense is only designed to handle camera data

[MTDzi]

OK,

Now I know for sure, thanks!