GStreamer newbie test

[michael7]

Hello,
I am trying to stream a video between two Ubuntu 9.04 stations using GStreamer.

The following code is run on the emitting machine:

gst-launch videotestsrc ! queue ! ffenc_mjpeg ! udpsink port=5000 host=192.168.1.100 -v

And the following on the receiving machine with IP 192.168.1.100:

gst-launch udpsrc port=5000 caps="image/jpeg, width=320, height=240, framerate=30/1" ! queue ! ffdec_mjpeg ! ximagesink sync=true -v

Whatever the order I'm running them (emit first or receive first), I'm getting the following error once both are connected (I can see the Ethernet lights blinking):

ERROR*: element /GstPipelineipeline0/GstUDPSrc:udpsrc0*: internal error data flow.
gstbasesrc.c(245: gst_base_src_loop (): /GstPipelineipeline/GstUDPSrc:udpsrc0:
streaming task paused, reason not-negotiated (-4)
Execution ended after 3191625000 ns.
PAUSED...

What's happening? I have set the caps and it still shows me the error.

Thanks,
Mike

[ganeshpetkar]

hi,
i m trying playback ogg file on my target and i gave below command
gst-launch-0.10 filesrc location=flip-piece.ogg ! decodebin ! audioconvert ! alsasink

i m getting below error..

(gst-launch-0.10:2119): GStreamer-WARNING **: Failed to load plugin '/usr/lib/gstreamer-0.10/libgstsubparse.so': /usr/lib/gstreamer-0.10/libgstsubparse.so: undefined symbol: sami_context_init
BAD screen resolution 16 x 4877128!
Error initializing: Error re-scanning registry , child terminated by signal


plz do the needful for the same...

[Seba_for_module]

Hi michael7,

your pipeline can work fine if you use xvimagesink instead of ximagesink. This is becouse xvimagesink is more reliable to input formats. If you have a timestamped stream xvimagesink could give you some problems due to buffering (when frame has to be displayed its timestamp is outdated). This can be avoid using property max-lateness=-1.

bye!

[Seba_for_module]

Hi ganeshpetkar,

let's try the following pipeline:

filesrc location=airplane.ogg ! oggdemux ! vorbisdec ! audioconvert ! alsasink

this will allow to listen to the audio stream of the ogg file.

bye