Realsense - dropping frames

[rabysam28]

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Required Info
Camera Model	D415
Firmware Version	05.11.01.100
Operating System & Version	Ubuntu 16
Kernel Version (Linux Only)	4.15.0-46-generic
Platform	DELL
SDK Version	legacy / 2.. }
Language	C++11
Segment	other }

Issue Description

I am recording BAG file using realsense-viewer, and after that I am converting them to PNG files, and I see the following issues:

1. Although the freq is set to 30Hz in realsense-viewer, the number of PNG files are less than 30 images per seconds. I am loosing some frames.
2. I noticed that there are cases that two consecutive frames has the same content, meaning that the two PNG files are showing exactly the same thing, but they do have two different timestamps.
3. There are also cases where two consecutive frames are two different things which is good, but they have the exact same timestamp. (This is opposite of the issue 2)
   Could you please advise on the above three issues?
   Thanks

[RealSenseCustomerSupport]

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Hi rabysam28,

Can you try the built-in rosbag-inspector tool on your recorded bag file, and see if the inspector reports same issues?
Also wonder when recording to the bag file, how many streams and what resolution of each stream?

Thanks!

[RealSenseCustomerSupport]

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Hi rabysam28,

Wonder if there is any update? Or do you still need help on this one?

Thanks!