Gstream video stream error











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I'm trying to stream webcam video from one computer to another with low or zero latency.
I used the following command.

Sender:



gst-launch-1.0 v4l2src !  video/x-raw,width=640,height=480 !  x264enc ! h264parse ! rtph264pay !  udpsink host=127.0.0.1 port=5000


But I get the following error : 



Setting pipeline to PAUSED ...

ERROR: Pipeline doesn't want to pause.

ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: This isn't a device '/dev/video0'.

Additional debug info:

v4l2_calls.c(575): gst_v4l2_open (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:

system error: Success

Setting pipeline to NULL ...

Freeing pipeline ...


Does anybody have any idea how I can remove this error?






14.04 video webcam gstreamer







share|improve this question


























    up vote
    1
    down vote

    favorite
    1












    I'm trying to stream webcam video from one computer to another with low or zero latency.
    I used the following command.

    Sender:



    gst-launch-1.0 v4l2src !  video/x-raw,width=640,height=480 !  x264enc ! h264parse ! rtph264pay !  udpsink host=127.0.0.1 port=5000


    But I get the following error : 



    Setting pipeline to PAUSED ...
    
ERROR: Pipeline doesn't want to pause.
    
ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: This isn't a device '/dev/video0'.
    
Additional debug info:
    
v4l2_calls.c(575): gst_v4l2_open (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
    
system error: Success
    
Setting pipeline to NULL ...
    
Freeing pipeline ...


    Does anybody have any idea how I can remove this error?






    14.04 video webcam gstreamer







    share|improve this question
























      up vote
      1
      down vote

      favorite
      1









      up vote
      1
      down vote

      favorite
      1






      1





      I'm trying to stream webcam video from one computer to another with low or zero latency.
      I used the following command.

      Sender:



      gst-launch-1.0 v4l2src !  video/x-raw,width=640,height=480 !  x264enc ! h264parse ! rtph264pay !  udpsink host=127.0.0.1 port=5000


      But I get the following error : 



      Setting pipeline to PAUSED ...
      
ERROR: Pipeline doesn't want to pause.
      
ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: This isn't a device '/dev/video0'.
      
Additional debug info:
      
v4l2_calls.c(575): gst_v4l2_open (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
      
system error: Success
      
Setting pipeline to NULL ...
      
Freeing pipeline ...


      Does anybody have any idea how I can remove this error?






      14.04 video webcam gstreamer







      share|improve this question













      I'm trying to stream webcam video from one computer to another with low or zero latency.
      I used the following command.

      Sender:



      gst-launch-1.0 v4l2src !  video/x-raw,width=640,height=480 !  x264enc ! h264parse ! rtph264pay !  udpsink host=127.0.0.1 port=5000


      But I get the following error : 



      Setting pipeline to PAUSED ...
      
ERROR: Pipeline doesn't want to pause.
      
ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: This isn't a device '/dev/video0'.
      
Additional debug info:
      
v4l2_calls.c(575): gst_v4l2_open (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
      
system error: Success
      
Setting pipeline to NULL ...
      
Freeing pipeline ...


      Does anybody have any idea how I can remove this error?






      14.04 video webcam gstreamer




      14.04 video webcam gstreamer






      share|improve this question













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      asked Feb 2 '15 at 13:15









      Lakshya Kejriwal

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          The error means that /dev/video0 is not a video capture device. Perhaps you need to set another device using:



          gst-launch-1.0 v4l2src device="/dev/videoX" ! video/x-raw,width=640,height=480 !  x264enc ! h264parse ! rtph264pay !  udpsink host=127.0.0.1 port=5000


          Where 'X' is the number of your video capture device. It might also happen that your device can't capture in 640x480 so you might want to add a videoscale before the caps and also it is safe to have a videoconvert before the encoder in case the input is in a format that the encoder can't handle.



          So something like:



          gst-launch-1.0 v4l2src device=<device> ! videoscale ! video/x-raw,width=640,height=480 ! videoconvert ! x264enc ! h264parse ! rtph264pay !  udpsink host=127.0.0.1 port=5000





          share|improve this answer





















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            The error means that /dev/video0 is not a video capture device. Perhaps you need to set another device using:



            gst-launch-1.0 v4l2src device="/dev/videoX" ! video/x-raw,width=640,height=480 !  x264enc ! h264parse ! rtph264pay !  udpsink host=127.0.0.1 port=5000


            Where 'X' is the number of your video capture device. It might also happen that your device can't capture in 640x480 so you might want to add a videoscale before the caps and also it is safe to have a videoconvert before the encoder in case the input is in a format that the encoder can't handle.



            So something like:



            gst-launch-1.0 v4l2src device=<device> ! videoscale ! video/x-raw,width=640,height=480 ! videoconvert ! x264enc ! h264parse ! rtph264pay !  udpsink host=127.0.0.1 port=5000





            share|improve this answer

























              up vote
              0
              down vote













              The error means that /dev/video0 is not a video capture device. Perhaps you need to set another device using:



              gst-launch-1.0 v4l2src device="/dev/videoX" ! video/x-raw,width=640,height=480 !  x264enc ! h264parse ! rtph264pay !  udpsink host=127.0.0.1 port=5000


              Where 'X' is the number of your video capture device. It might also happen that your device can't capture in 640x480 so you might want to add a videoscale before the caps and also it is safe to have a videoconvert before the encoder in case the input is in a format that the encoder can't handle.



              So something like:



              gst-launch-1.0 v4l2src device=<device> ! videoscale ! video/x-raw,width=640,height=480 ! videoconvert ! x264enc ! h264parse ! rtph264pay !  udpsink host=127.0.0.1 port=5000





              share|improve this answer























                up vote
                0
                down vote










                up vote
                0
                down vote









                The error means that /dev/video0 is not a video capture device. Perhaps you need to set another device using:



                gst-launch-1.0 v4l2src device="/dev/videoX" ! video/x-raw,width=640,height=480 !  x264enc ! h264parse ! rtph264pay !  udpsink host=127.0.0.1 port=5000


                Where 'X' is the number of your video capture device. It might also happen that your device can't capture in 640x480 so you might want to add a videoscale before the caps and also it is safe to have a videoconvert before the encoder in case the input is in a format that the encoder can't handle.



                So something like:



                gst-launch-1.0 v4l2src device=<device> ! videoscale ! video/x-raw,width=640,height=480 ! videoconvert ! x264enc ! h264parse ! rtph264pay !  udpsink host=127.0.0.1 port=5000





                share|improve this answer












                The error means that /dev/video0 is not a video capture device. Perhaps you need to set another device using:



                gst-launch-1.0 v4l2src device="/dev/videoX" ! video/x-raw,width=640,height=480 !  x264enc ! h264parse ! rtph264pay !  udpsink host=127.0.0.1 port=5000


                Where 'X' is the number of your video capture device. It might also happen that your device can't capture in 640x480 so you might want to add a videoscale before the caps and also it is safe to have a videoconvert before the encoder in case the input is in a format that the encoder can't handle.



                So something like:



                gst-launch-1.0 v4l2src device=<device> ! videoscale ! video/x-raw,width=640,height=480 ! videoconvert ! x264enc ! h264parse ! rtph264pay !  udpsink host=127.0.0.1 port=5000






                share|improve this answer












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                share|improve this answer










                answered Feb 3 '15 at 20:42









                thiagoss

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