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Transmit a ROS Video topic via video stream

asked 2011-12-01 21:23:51 -0500

Poseidonius gravatar image

updated 2011-12-03 21:20:34 -0500

tfoote gravatar image

Hi everyone,

I receive a Video stream from my Android device using gcam, process the ros video stream with ar_toolkit and opencv amen want to stream it back.

How can I transfer a ros video topic to a Video stream? Gscam works in one direction only.

Thanks, enjoy the weekend


Ok, more detailed: I plan to do the following chain:

   1                      2           3            4         5                 6  
Android  -- video --> gstreamer ---> ROS   ---> ROS     ---> ? -- video ---> Android
device      stream     server        gscam      ar_pose           stream    

Steps 1 to 4 works fine. I integrate some texts and augmented stuff in the video, but I have no idea how to transfer a ROS video msg into a video stream.

Any suggestions? Best wishes


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Where are you attempting to publish this video stream back to?
DimitriProsser gravatar image DimitriProsser  ( 2011-12-02 02:55:47 -0500 )edit
How are you streaming from android? I assume its an ip cam app and if so could you post your GSCAM config line from your launch file so I could see how you got the image into gscam..
Atom gravatar image Atom  ( 2012-01-23 20:42:23 -0500 )edit

I wonder how difficult would it be to make gscam also work as a video sink.

Yogi gravatar image Yogi  ( 2012-02-13 09:40:45 -0500 )edit

2 Answers

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answered 2011-12-04 00:20:14 -0500

Kevin gravatar image

Isn't Android Java only or can you use Python/C++ too? If so, try looking at the simple subscriber/publisher code (python/c++).

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answered 2012-06-26 21:52:25 -0500

Johannes gravatar image

Hi, is there already a solution for this problem. I want to stream a video to vlc player (rtsp or rtp) but there seems no package that does the other direction of gscam.

Thx Johannes

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Asked: 2011-12-01 21:23:51 -0500

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Last updated: Jun 26 '12