On 20.02.2011 01:33, Tom wrote:
> Thanks for your reply!
> I followed the instructions in the link you sent me, but I still got
> an error.
>
> If I do this:
> gst-launch v4l2src !
> video/x-raw-yuv,width=320,height=240,framerate=\(fraction\)5/1 !
> ffmpegcolorspace ! jpegenc ! multipartmux ! tcpserversink
> host=192.168.2.1 port=5000
> Then the error is:
> (gst-launch-0.10:8222): GLib-WARNING **: g_set_prgname() called
> multiple times
> Setting pipeline to PAUSED ...
> ERROR: Pipeline doesn't want to pause.
> ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Cannot
> identify device '/dev/video0'.
> Additional debug info:
> v4l2_calls.c(482): gst_v4l2_open ():
> /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
> system error: No such file or directory
> Setting pipeline to NULL ...
> Freeing pipeline ...
What are these command reporting:
ls /dev/video*
v4l-info
>
> So I guess video/x-raw-yuv,width=320,height=240 should be a file in my
> current folder so I change it to 1.MPG that is a mpeg file in my
> current folder.
No, "video/x-raw-yuv,width=320,height=240"is a capsfilter that selects
the format.
Stefan
> Then the error is:
> (gst-launch-0.10:8227): GLib-WARNING **: g_set_prgname() called
> multiple times
> WARNING: erroneous pipeline: link without source element
>
> I am totally confused....Just started learning stream a few days ago
> and I am not familiar with Linux...
>
> So what do you think I should revise in the above command gst-launch?
> Would you please give me some specific suggestion? Thank you very
> much! I am really a "newbie" in this area :)
>
> Tom
>
> On Thu, Feb 17, 2011 at 5:07 AM, Thabelo Mmbengeni <
[hidden email]
> <mailto:
[hidden email]>> wrote:
>
> I agree rtp or srtsp to maintain data streaming.
>
>
> On Thu, Feb 17, 2011 at 1:00 PM, Luis de Bethencourt
> <
[hidden email] <mailto:
[hidden email]>> wrote:
>
> On Thu, Feb 17, 2011 at 8:49 AM, Marc Leeman
> <
[hidden email] <mailto:
[hidden email]>> wrote:
> >> I just started learning gstreamer this morning and I found
> it might be
> >> feasible for me to do my project:
> >
> >
http://lmgtfy.com/?q=stream+file+with+gstreamer> >
> >> For example, the rate of I-frame, B-frame, P-frame, etc.
> >
> >
http://lmgtfy.com/?q=transcoding+gstreamer> >
> > --
> > greetz, marc
> > There is no likelihood man can ever tap the power of the atom.
> > -- Robert Millikan, Nobel Prize in Physics, 1923
> > crichton 2.6.26 #1 PREEMPT Tue Jul 29 21:17:59 CDT 2008
> GNU/Linux
>
>
>
http://wiki.laptop.org/go/GStreamer#Doing_live_streaming_video_from_an_xo> It would be better to use rtp... but this link will get you a
> feel for
> streaming.
>
> Luis
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>
>
> --
> Regards
>
> Thabelo Mmbengeni (TMT Services Cape Town HO, Engineering dep)
>
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