[ros-users] [Discourse.ros.org] [ROS Projects] ROS Visual odometry

erin1006 ros.discourse at gmail.com
Wed Jan 10 16:14:55 UTC 2018

Hi Kobylyanskly,

Really nice work and I am excited to try this! I am trying to use your setup but couldn't launch raspicam launch file properly. Setup on Pi was fine and the video is broadcasting since I am able to stream the video with command $ gst-launch-1.0 -v udpsrc port=9000 caps='application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264' ! rtph264depay ! avdec_h264 ! videoconvert ! autovideosink sync=f
The problem arises when I run the raspicam.launch file and it returns the message:

[FATAL] [1515599618.204792312]: GStreamer: cannot link outelement("rtph264depay0") -> sink
[FATAL] [1515599618.204858007]: Failed to initialize gscam stream!

Do you have any idea what is wrong? My launch file is exactly the same as your post.

Any help would be greatly appreciated.


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