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dusty-nv / ros_deep_learning

Deep learning inference nodes for ROS / ROS2 with support for NVIDIA Jetson and TensorRT
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Failed to load nodelet /gst_camera of type [ros_jetson_video/gst_camera] #3

Closed bpinaya closed 6 years ago

bpinaya commented 6 years ago

Hi there @dusty-nv , in the launch file you include a node which I assume is the node that takes care of the gst_camera. Do you plan to release such node? Otherwise there is this error:

[ERROR] [1506071741.153780987]: Failed to load nodelet [/gst_camera] of type [ros_jetson_video/gst_camera] even after refreshing the cache: According to the loaded plugin descriptions the class ros_jetson_video/gst_camera with base class type nodelet::Nodelet does not exist. Declared types are  ros_deep_learning/ros_imagenet
[ERROR] [1506071741.153964994]: The error before refreshing the cache was: According to the loaded plugin descriptions the class ros_jetson_video/gst_camera with base class type nodelet::Nodelet does not exist. Declared types are  ros_deep_learning/ros_imagenet
[FATAL] [1506071741.154335455]: Failed to load nodelet '/gst_camera` of type `ros_jetson_video/gst_camera` to manager `standalone_nodelet'
[gst_camera-4] process has died [pid 32494, exit code 255, cmd /opt/ros/kinetic/lib/nodelet/nodelet load ros_jetson_video/gst_camera standalone_nodelet ~image_raw:=/image_raw __name:=gst_camera __log:=/home/ubuntu/.ros/log/92f488dc-9f76-11e7-b5c5-00044b633dff/gst_camera-4.log].
log file: /home/ubuntu/.ros/log/92f488dc-9f76-11e7-b5c5-00044b633dff/gst_camera-4*.log
dusty-nv commented 6 years ago

Hmm thanks Benjamin, let me see if I can locate this, otherwise we may need to re-create the nodelet from the gstCamera sources included with jetson-inference. These nodelets were an experiment to get better performance anyhow. Turns out we needed to author our own I/O nodelets as well.

You may also be interested, we now have caffe_ros node available under the github.com/NVIDIA-Jetson account. It loads caffe models with TensorRT and the node portion is more current than what I have here.

From: Benjamin Pinaya [mailto:notifications@github.com] Sent: Friday, September 22, 2017 5:24 AM To: dusty-nv/ros_deep_learning ros_deep_learning@noreply.github.com Cc: Dustin Franklin dustinf@nvidia.com; Mention mention@noreply.github.com Subject: [dusty-nv/ros_deep_learning] Failed to load nodelet /gst_camera of type [ros_jetson_video/gst_camera] (#3)

Hi there @dusty-nvhttps://github.com/dusty-nv , in the launch file you include a node which I assume is the node that takes care of the gst_camera. Do you plan to release such node? Otherwise there is this error:

[ERROR] [1506071741.153780987]: Failed to load nodelet [/gst_camera] of type [ros_jetson_video/gst_camera] even after refreshing the cache: According to the loaded plugin descriptions the class ros_jetson_video/gst_camera with base class type nodelet::Nodelet does not exist. Declared types are ros_deep_learning/ros_imagenet

[ERROR] [1506071741.153964994]: The error before refreshing the cache was: According to the loaded plugin descriptions the class ros_jetson_video/gst_camera with base class type nodelet::Nodelet does not exist. Declared types are ros_deep_learning/ros_imagenet

[FATAL] [1506071741.154335455]: Failed to load nodelet '/gst_cameraof typeros_jetson_video/gst_camerato managerstandalone_nodelet'

[gst_camera-4] process has died [pid 32494, exit code 255, cmd /opt/ros/kinetic/lib/nodelet/nodelet load ros_jetson_video/gst_camera standalone_nodelet ~image_raw:=/image_raw __name:=gst_camera __log:=/home/ubuntu/.ros/log/92f488dc-9f76-11e7-b5c5-00044b633dff/gst_camera-4.log].

log file: /home/ubuntu/.ros/log/92f488dc-9f76-11e7-b5c5-00044b633dff/gst_camera-4*.log

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bpinaya commented 6 years ago

Oh thanks! I'll check that one out. Closing this one.

bpinaya commented 6 years ago

Hey @dusty-nv , did you find the nodelet by any chance? You used the files in the gst-camera from the jetson-inference to build it right? I think I'll try to recreate the nodelet, I tried the jetson caffe_ros repo but it's not working and haven't gotten their launch files with the gscam node to work.

telemething commented 6 years ago

Did either of you (re)create this nodelet?

bpinaya commented 6 years ago

Hey there, I ended up doing an implementation myself but can disclose it since it was done for a company, but it basically resumes to get the image from a rostopic, converting it to your format and pass it to the serialized TensorRT Network. But I think it's better to use the direct gstcam or v4l to get the images.