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?










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  • Does your webcam work in guvcview?

    – Smile4ever
    Dec 21 '18 at 13:35


















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?










share|improve this question














bumped to the homepage by Community 6 mins ago


This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
















  • Does your webcam work in guvcview?

    – Smile4ever
    Dec 21 '18 at 13:35














1












1








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?










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






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asked Feb 2 '15 at 13:15









Lakshya KejriwalLakshya Kejriwal

10613




10613





bumped to the homepage by Community 6 mins ago


This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.







bumped to the homepage by Community 6 mins ago


This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.















  • Does your webcam work in guvcview?

    – Smile4ever
    Dec 21 '18 at 13:35



















  • Does your webcam work in guvcview?

    – Smile4ever
    Dec 21 '18 at 13:35

















Does your webcam work in guvcview?

– Smile4ever
Dec 21 '18 at 13:35





Does your webcam work in guvcview?

– Smile4ever
Dec 21 '18 at 13:35










1 Answer
1






active

oldest

votes


















0














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





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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




























      0














      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


























        0












        0








        0







        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






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        answered Feb 3 '15 at 20:42









        thiagossthiagoss

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