[gmail] how to "stream a video" on a Linux PC?

[Tom]

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 ...

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.
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 <thabelo at gmail.com>wrote:

> I agree rtp or srtsp to maintain data streaming.
>
>
> On Thu, Feb 17, 2011 at 1:00 PM, Luis de Bethencourt <
> luis at debethencourt.com> wrote:
>
>> On Thu, Feb 17, 2011 at 8:49 AM, Marc Leeman <marc.leeman at gmail.com>
>> 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
>> _______________________________________________
>> gstreamer-devel mailing list
>> gstreamer-devel at lists.freedesktop.org
>> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>>
>
>
>
> --
> Regards
>
> Thabelo Mmbengeni (TMT Services Cape Town HO, Engineering dep)
>
> _______________________________________________
> gstreamer-devel mailing list
> gstreamer-devel at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>
>
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