[gst-devel] pcapparse seems to work, the output from pcapparse to rtpmp4gdepay has a problem

[Marco Ballesio]

Hi,

On Tue, Dec 21, 2010 at 3:24 AM, shiva varma <shiva.varma at gmail.com> wrote:
>
> Hi All.
>  Would greatly appreciate any help regarding the problem I have been facing
> wirh rtpmp4gdepay
>
> I have a pcap file, which contains AAC-LD stream, with the following
> properties
> Bitrate: 64 kbps/channel
> RTP Payload: IETF RFC 3640, AAC-hbr mode
> Default Dynamic Payload Number: 96
>
> When I pipe the pcap file to a filesink using pcapparse I can see that the
> file has some size indicating the rtp stream was written to it, following is
> the pipeline
>
> gst-launch  filesrc location=audioCaptureFiltered.pcap ! pcapparse
> src-ip=10.22.156.148 ! "application/x-rtp, payload=96, media=audio,
> clock-rate=64000, encoding-name=MPEG4-GENERIC, mode=AAC-hbr,
> streamtype=(string)4" !  filesink location=abc.out
>
> However if I add rtpmp4gdepay to the pcapparse output, I observe that the
> size of the file is zero....

You probably need to set the proper src-port as well in the pcapparse element.

> I do not get any errors, even when I set gst-debug-level to 5..

Probably all of the packets are filtered away, so it's not, strictly
speaking, an error.

>
> Here is the command output
>
> gst-launch  filesrc location=audioCaptureFiltered.pcap ! pcapparse
> src-ip=10.22.156.148 src-port=16464 ! "application/x-rtp, payload=96,
> media=audio, clock-rate=64000, encoding-name=MPEG4-GENERIC, mode=AAC-hbr,
> streamtype=(string)4" !  rtpmp4gdepay ! filesink location=abc.out

strange, here you've set the port and still doesn't it work? I note
that in my tests I don't set the src-ip, maybe I got your same issue..

Regards

> Setting pipeline to PAUSED ...
> Pipeline is PREROLLING ...
> Pipeline is PREROLLED ...
> Setting pipeline to PLAYING ...
> New clock: GstSystemClock
> Got EOS from element "pipeline0".
> Execution ended after 151000 ns.
> Setting pipeline to PAUSED ...
> Setting pipeline to READY ...
> Setting pipeline to NULL ...
> Freeing pipeline ...
>
> Is there something I am missing, please let me know
>
> Thanks
> Shiva
>
>
> --
> View this message in context: http://gstreamer-devel.966125.n4.nabble.com/pcapparse-seems-to-work-the-output-from-pcapparse-to-rtpmp4gdepay-has-a-problem-tp3114174p3114174.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
> _______________________________________________
> gstreamer-devel mailing list
> gstreamer-devel at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>