gst-streaming-server stalls

[Chuck Crisler]

To capture the stream traffic while playing you should insert a 'T' into
the pipeline with one branch doing the display and the other writing to a
file. Here is an example from Atish Nasar:

Here's an example:

gst-launch filesrc location=source.file ! tee name=tp \
tp. ! queue ! filesink location=destination1.file \
tp. ! queue ! filesink location=destination2.file

The queues are to prevent deadlocking.

Insert the 'T' at the appropriate place in your pipeline.

On Tue, Jan 8, 2013 at 12:14 PM, Gary Thomas <gary at mlbassoc.com> wrote:

> On 2013-01-08 09:53, Gary Thomas wrote:
>
>> 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.
>>
>
> A little more data - if I kill the streaming source while the
> stream is still active on my browser (but stalled), the stall
> breaks and many seconds of video start playing with no glitches!
>
> To try and understand this a bit more, I'd like to capture the
> source data [stream] to a file.  Can someone recommend how to
> expand the pipeline above to still send the stream but also save
> the .webm file?
>
>
> --
> ------------------------------**------------------------------
> Gary Thomas                 |  Consulting for the
> MLB Associates              |    Embedded world
> ------------------------------**------------------------------
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