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ros-drivers / pointgrey_camera_driver

ROS driver for Pt. Grey cameras, based on the official FlyCapture2 SDK.
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Unable to store image data as rosbag from stereo cameras simultaneously. #114

Closed ashnarayan13 closed 6 years ago

ashnarayan13 commented 7 years ago

I want to store the image data from the cameras in real time. When I run the rosbag record, one of the camera nodes closes. Any suggestions?

mikepurvis commented 7 years ago

The topics are transcoded on demand, so if you try to subscribe to all of them, you'll peg your CPU. Did you record a specific topic, or just rosbag record -a?

ashnarayan13 commented 7 years ago

I am able to record a single topic at a time. I want to record the image_raw from both left and right cams simultaneously. When I try that, it crashes the right cam always. I am using flea3 cams. rosbag record -a stops one of the cams from recording (right cam) and only left cam data is available

naveenT1010 commented 6 years ago

Hi @mikepurvis, I am also trying to record two camera topics, but most of the times, one of the camera nodelet dies. Even if i try to view the images in rqt (both the cameras simultaneously) it again kills one of the camera nodelet.

ashnarayan13 commented 6 years ago

This can be fixed by changing the buffer for the USB on Jetson tx1 (device I was using). Also, reducing the framerates / image resolution can help with this.

BoomFan commented 6 years ago

Would you mind sharing the way you change USB buffer, please? I'm running into the same issue. And not only on Jetson tx1, but also on my personal laptop.