Problems converting audio pcap using pcapparse, rtpmp4depay and qtmux plugins

[shiva varma]

Hi.
  I have a pcap file which contains mpeg4-generic audio carried in RTP
I use the following pipeline

gst-launch filesrc location=audio.rtp.pcap ! pcapparse !
"application/x-rtp, payload=96, media=audio, clock-rate=30" !
rtpmp4adepay ! "audio/mpeg, mpegversion=4" ! qtmux ! fakesink

Below is the error I get

Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
ERROR: from element /GstPipeline:pipeline0/GstQTMux:qtmux0: Internal
GStreamer error: negotiation problem.  Please file a bug at
http://bugzilla.gnome.org/enter_bug.cgi?product=GStreamer.
Additional debug info:
gstqtmux.c(1815): gst_qt_mux_add_buffer ():
/GstPipeline:pipeline0/GstQTMux:qtmux0:
format wasn't negotiated before buffer flow on pad audio_00
Execution ended after 300000 ns.
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
Freeing pipeline ...

Am I missing on some caps that needs to be added to the pipeline?

Thanks
Shiva

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[shiva varma]

Update
I have tried the following pipeline and I get a similar error

gst-launch filesrc location=audio.pcap ! pcapparse ! "application/x-rtp, payload=96, clock-rate=44100, encoding-name=MP4A-LATM, cpresent=0, config=NULL" ! gstrtpjitterbuffer ! rtpmp4adepay ! "audio/mpeg, mpegversion=4, stream-format=raw, channels=2, rate=44100" ! qtmux ! fakesink

[Marco Ballesio]

Hi,

try getting the proper playload type and port to set in the pcapparse
element. You achieve it easily by opening your dump with Wireshark.

Besides, which sw did you use to collect the network dump? And which command?

Regards

On Fri, Dec 17, 2010 at 2:13 AM, shiva varma <[hidden email]> wrote:

>
> Update
> I have tried the following pipeline and I get a similar error
>
> gst-launch filesrc location=audio.pcap ! pcapparse ! "application/x-rtp,
> payload=96, clock-rate=44100, encoding-name=MP4A-LATM, cpresent=0,
> config=NULL" ! gstrtpjitterbuffer ! rtpmp4adepay ! "audio/mpeg,
> mpegversion=4, stream-format=raw, channels=2, rate=44100" ! qtmux ! fakesink
>
>
> --
> View this message in context: http://gstreamer-devel.966125.n4.nabble.com/Problems-converting-audio-pcap-using-pcapparse-rtpmp4depay-and-qtmux-plugins-tp3090099p3091917.html
> Sent from the GStreamer-devel mailing list archive at Nabble.com.
>
> ------------------------------------------------------------------------------
> Lotusphere 2011
> Register now for Lotusphere 2011 and learn how
> to connect the dots, take your collaborative environment
> to the next level, and enter the era of Social Business.
> http://p.sf.net/sfu/lotusphere-d2d
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>

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