[gst-devel] sending raw stream over rtp

[Kocsis Tibor]

The sdp I linked was wrong, my version is here:

 medias:
  media 0:
   media:       'video'
   port:        '0'
   num_ports:   '4294967295'
   proto:       'RTP/AVP'
   formats:
    format  '96'
   information: '(NULL)'
   key:
    type:       '(NULL)'
    data:       '(NULL)'
   attributes:
    attribute 'rtpmap' : '96 RAW/90000'
    attribute 'control' :
'rtsp://10.30.0.8:1554/Live/trackID=0?channelID=98d16963-877f-4446-bb69-3aeada917523'
    attribute 'fmtp' : '96 width=640;height=480;sampling=YCbCr-4:2:0;depth=8'
    attribute 'appversion' : '5.0.0'


On Wed, Jan 5, 2011 at 9:07 AM, Kocsis Tibor <ikt011 at gmail.com> wrote:
> Hi,
>
> I have a basic rtsp server, and I try to use to send a raw stream to
> the client. On the receiver side I use a simple gstreamer pipeline
> like this: rtspsrc ! rtpvrawdepay ! xvimagesink. On the server there
> are gstreamer elements, too, some source connected to a rtpvrawpay,
> and to the gstrtpsink elements. The sending is started, and I can
> watch something live view, but it is not fluency. These messages
> appear on the client:
>
> 0:00:03.233100336 24189 0x7f654000bd20 WARN            rtpvrawdepay
> gstrtpvrawdepay.c:378:gst_rtp_vraw_depay_process:<rtpvrawdepay0>
> clipping length 540, offset 460
> 0:00:03.233134052 24189 0x7f654000bd20 WARN            rtpvrawdepay
> gstrtpvrawdepay.c:378:gst_rtp_vraw_depay_process:<rtpvrawdepay0>
> clipping length 1086, offset 278
> 0:00:03.233192201 24189 0x7f654000bd20 WARN            rtpvrawdepay
> gstrtpvrawdepay.c:378:gst_rtp_vraw_depay_process:<rtpvrawdepay0>
> clipping length 252, offset 556
> 0:00:03.233232346 24189 0x7f654000bd20 WARN            rtpvrawdepay
> gstrtpvrawdepay.c:378:gst_rtp_vraw_depay_process:<rtpvrawdepay0>
> clipping length 798, offset 374
> ...
>
> What can it cause?
>
> My guess was I missed from the sdp (or built it up wrong), but the
> params I send over in the fmtp is the same as on the payloader's
> source pad (width, height, sample, even as depth, but as I see depth
> is not parsed on the client side). Btw my rtsp server works with
> h264/mpeg4 fine, so the elements are correctly linked.
>
> The full rtsp communication is here: http://pastebin.com/fC8MsJkx
>
> Any idea is welcomed
>
> Regards
> Tibor
>