[gst-embedded] Getting a gst-launch pipeline to play in totem?

[Arnout Vandecappelle]

 I've had quite a few issues with typefind and IP cameras myself...

 To test things as they would run in totem, you can use a gst-launch 
with "playbin2 uri=..." as the pipeline.  That way you can easily set debug 
options etc.

 In this case, you could try

gst-launch -v -m --gst-debug=typefindfunctions:5 \
 playbin2 uri=http://192.168.1.253/nphMotionjpeg?resolution=320x240

 Unfortunately, most typefindfunctions (including jpeg) don't give any debug 
output, so that won't help much...  In fact, jpeg_type_find just looks at the 
first two bytes and checks if it's a start marker 0xff 0xd8.  So, you can 
capture your camera's output and check what's in there:

gst-launch gnomevfssrc \
 location=http://192.168.1.253/nphMotionjpeg?resolution=320x240 ! \
 filesink location=/tmp/foo


 Good luck!
 Regards,
 Arnout

On Monday 27 April 2009 18:30:36 Scott Garman wrote:
> Hi there,
>
> I'm working on a project to display mjpeg streams from IP cameras on an
> embedded device running Debian Etch. I am able to display these streams
> fine using gst-launch, like so:
>
> gst-launch-0.10 gnomevfssrc
> location=http://192.168.1.253/nphMotionjpeg?resolution=320x240 ! jpegdec
> ! videoscale ! ffmpegcolorspace ! autovideosink
>
> CPU performance is great, and there is no stream latency like I have
> experienced with mplayer and vlc. My goal is to eventually embed this
> stream in a web browser, so my next step is to get totem to display them.
>
> Totem does not recognize the mjpeg stream when I give it the URL via the
> Open Location menu dialog, but my understanding is that totem is based
> on gstreamer - so is there a way I can take the above pipeline and get
> totem to play it?
>
> Thanks,
>
> Scott



-- 
Arnout Vandecappelle                               arnout at mind be
Senior Embedded Software Architect                 +32-16-286540
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