gst-streaming-server stalls

[Gary Thomas]

I'm trying to run the gst-streaming-server, using one of the
sample streaming sources provided with that package.  It sort
of works, but the stream(s) are erratic and often just stop for
long periods of time.  The stream has a time overlay and what
I see is the timer stop and then when the video starts playing
again, the timer carries on just where it left off. For example,
it might pause at time 05.07 sec and wait 60 seconds before
playing anything else and when it does, the timer continues
right at 05.07 seconds and counting.  However, I can see HTTP
traffic between my web browser and the server even when the
video is stalled, so I'm really confused!

I also get very different displays depending on the browser.
FireFox (17.0.1) seems to stall less frequently, but it doesn't
even show the timer overlay (that one really stumps me).  Google
Chrome (20.0.1132.47 Ubuntu 12.04 (144678)) stalls a lot but
does show the timer.

Here's the source pipeline being used with the streaming server:

gst-launch -q \
   videotestsrc is-live=true ! \
   video/x-raw-yuv,format=\(fourcc\)I420,width=320,height=180 ! \
   cairotimeoverlay ! \
   vp8enc ! \
   queue ! \
   webmmux streamable=true name=mux ! \
   shout2send ip=127.0.0.1 port=80 mount=stream0 \
   audiotestsrc volume=0.1 wave=ticks is-live=true ! \
   vorbisenc ! \
   queue ! \
   mux.audio_%d

Any ideas what's going on and how to fix it?  I need to be
able to stream video to a web browser (directly using HTML5)
so other streaming methods like RTSP aren't really viable.

Thanks

-- 
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Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
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