[gst-devel] [Bulk] Problem in gstrtpbin and AV Transfer---Urgent
Aurelien Grimaud
gstelzz at yahoo.fr
Tue Sep 30 22:37:50 CEST 2008
Can you describe how you switch from one source to another ?
Using input-selector ?
Do you change pipeline or bin state when switching ?
Is it a receiver problem or a sender problem ?
Are rtp packets really sent from one side to the other ?
Can you post the errors ?
Using dynamic pipeline is tricky because of buffer timestamp and new
segment management.
Using GST_DEBUG=5 when starting your pipeline will provide huge log, in
which you will find for sure where exactly the problem occurs.
Aurelien
Manish Rana a écrit :
> Hi All..
>
> I am facing some other problem in RTP Streaming...
>
> I am sending the rtp data over the UDP and playing it on the other end.
> I am recording the data from v4l2src @ 10 fps and voice data from
> alsasrc to send it across. The transmission starts well as well as i
> can see the video on the other end.
> Now in between i starts to take the data from a file.
> I decode the data and encode again to send it using the same rtpbin
> and udpsink.
>
> Enc, Pay gstrtpbin and udpsink are the element kept common...means i
> will use these elements in both the cases.
>
> the packets goes well and on the other end i can see the AV fine in
> both the cases....
>
> Now when i again switch back to v4l2src the packets on the receiver
> end come but the decoder (ffdec_mpeg4) gives error.......and there is
> no updates on display........
>
> The file i am using is @25fps......
> also when i increase the FPS of v4l2src the whole system works
> well..... at 20 fps.....
>
> Please let me know if i am missing something or i am doing something
> wrong way....
>
> Also i tried using different enc and pay elements in both the
> case..but i i unlink and link to gstrtpbin, there is no data at
> all..even in the first switch to file transfer.............. :(
>
> Please help...i have tried every possible thing to fix this
> issue....but i am stuck with the same for last couple of days now.....
>
>
> Any input will be appreciated from bottum of heart.......
>
> BR
> Manish
>
>
> Tue, Sep 30, 2008 at 3:52 PM, Wim Taymans <wim.taymans at gmail.com
> <mailto:wim.taymans at gmail.com>> wrote:
>
> On Tue, 2008-09-30 at 11:59 +0200, Francesco Argese wrote:
> > Hi all.
> >
> > I have problems sending a theora flow in streaming through rtp.
> >
> > My two pipeline are the following:
> > Sender
> > 1)gst-launch gstrtpbin name=rtpbin dv1394src ! dvdemux name=demux !
> > dvdec ! ffmpegcolorspace ! theoraenc ! rtptheorapay !
> > rtpbin.send_rtp_sink_0 rtpbin.send_rtp_src_0 ! udpsink port=5000
> > host=172.16.1.56 <http://172.16.1.56> rtpbin.send_rtcp_src_0 !
> udpsink port=5001
> > host=172.16.1.56 <http://172.16.1.56> sync=false async=false
> udpsrc port=5005 !
> > rtpbin.recv_rtcp_sink_0
> >
> > Receiver
> > 2)gst-launch-0.10 gstrtpbin name=rtpbin udpsrc port=5000
> >
> caps="application/x-rtp,media=video,clock-rate=90000,encoding-name=THEORA,profile-level-id=1,payload=96"
> > ! rtpbin.recv_rtp_sink_0 rtpbin. ! rtptheoradepay ! theoradec !
> > ffmpegcolorspace !
> >
> video/x-raw-rgb,bpp=32,endianness=4321,depth=24,red_mask=65280,green_mask=16711680,blue_mask=-16777216,width=720,height=576
> > ! fakesink udpsrc port=5001 ! rtpbin.recv_rtcp_sink_0
> > rtpbin.send_rtcp_src_0 ! udpsink host=172.16.100.277 port=5005
> > sync=false async=false
> >
> > The sender seems to works well but at the receiver i obtain the
> following error:
> > New clock: GstSystemClock
> > ERROR: from element /pipeline0/udpsrc0: Internal data flow error.
> > Additional debug info:
> > gstbasesrc.c(2240): gst_base_src_loop (): /pipeline0/udpsrc0:
> > streaming task paused, reason not-negotiated (-4)
>
> The receiver needs the sampling, width, height and configuration
> strings. Run the sender pipeline with -v, then copy the caps on
> the RTP
> udpsink to the receiver udpsrc caps (and yes, they are huge and
> they are
> needed).
>
> Wim
>
> >
> > Any suggestion? What could be the problem? A pipeline very similar
> > using MPEG4 works well.
> >
> > Regards
> > Francesco Argese
> >
> >
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