[gst-devel] rtp transmit occur "not-negotiated (-4)" error

Thu Nov 11 09:22:23 CET 2010

Marco Ballesio,
      I don't think there is other thing connect to port 40000, because
change to other port number still have the same problem.
      I'm doubtful of the encode plugin don't match the decode plugin.You
can see my h.263 rtp transmit sample and log.


Marco Ballesio wrote:
> 
> Hi,
> 
> On Thu, Nov 11, 2010 at 4:19 AM, guodecn <guo.dehua at zxelec.com> wrote:
> 
>>
>> Marco Ballesio,
>> I have follow your two advices, add the codec_data property or set
>> config-interval=1, the error is still same to before.
>>
>> I have set the GST_DEBUG=3, and capture the log, both server and client
>> log
>> are all in the attach file.
>> I will check my machine evirenment about x264enc, also I will continue to
>> debug with the new log.
>>
> 
>>From the log, it feels like the udpsrc is emitting packets which are not
> h264. My bat-senses say that you might have more than one thing connected
> to
> port 40000 on your system. I don't remember if I've already asked you to
> do
> so, but could you get a tcpdump from the receiving side/machine (well,
> actually it should be the same as the sending one ;) ). You can collect it
> with:
> 
> tcpdump -ilo -s0 -w/path/to/tcpdump.cap
> 
> 
> 
>> Thank you very much for your fervor.
> 
> 
> Mastership requires continuous exercise, and you're giving me a good
> chance,
> so it is me who must thank you ;).
> 
> Regards
> 
> 
>>
>>
>>
>> Marco Ballesio wrote:
>> >
>> > Hi,
>> >
>> > mmmhhh, I've the suspect that in your case sending machine !=
>> receivning
>> > machine. Maybe you've an old version of x264enc in the first one. It
>> > appears, in fact, that the sending part is preparing the
>> > sprop-paramenter-set (aka codec data) for being transmitted outband.
>> You
>> > can
>> > try to either add the property:
>> >
>> >
>> codec_data=(buffer)014d4015ffe10017674d4015eca0a0fd8088000003000bb9aca00078b16cb001000468ebecb2
>> >
>> > in your receiver udpsrc caps.
>> >
>> > Alternatively (but less likely to succeed) you can set the following
>> > property in rtph264pay to send in-band sps and pps:
>> >
>> > config-interval=1
>> >
>> > (should send in-band sps and pps).
>> >
>> > If it still does not work, please attach somewher the log you get with
>> > GST_DEBUG=3
>> >
>> > Regards
>> >
>> > On Wed, Nov 10, 2010 at 12:03 PM, guodecn <guo.dehua at zxelec.com> wrote:
>> >
>> >>
>> >> Marco Ballesio,
>> >> Very sadly, I use your modfied sample still the same error.
>> >> I think the syntax is no problem, my os is fedora13 install on vmware
>> >> workstation.
>> >> I have no idea.
>> >>
>> >>
>> >> Marco Ballesio wrote:
>> >> >
>> >> > Hi,
>> >> >
>> >> > On Wed, Nov 10, 2010 at 11:30 AM, guodecn <guo.dehua at zxelec.com>
>> wrote:
>> >> >
>> >> >>
>> >> >> Hi,Marco Ballesio,
>> >> >> Thanks for your reply very much.
>> >> >>
>> >> >> >>However, the issue was the place you've set the "port" property.
>> >> >> what's your mean? Don't udpsrc need the port property? if don't
>> udpsrc
>> >> >> have
>> >> >> no port property, we can't receive the data.
>> >> >>
>> >> >
>> >> > sorry, I didn't notice the "caps=" before the caps ;)
>> >> >
>> >> >
>> >> >>
>> >> >> I have modify the pipeline as below:
>> >> >>
>> >> >> server:
>> >> >> gst-launch-0.10 -v videotestsrc ! x264enc ! rtph264pay ! udpsink
>> >> >> host=127.0.0.1 port=40000
>> >> >>
>> >> >> client:
>> >> >> gst-launch-0.10 -v udpsrc port=40000 caps=
>> >> >>
>> >> >>
>> >>
>> "application/x-rtp,media=(string)video,clock-rate=(int)90000,encoding-name=(string)H264,payload=(int)96"
>> >> >> ! rtph264depay ! ffdec_h264 ! xvimagesink
>> >> >>
>> >> >>
>> >> > These pipelines are working pretty well, both with the standard
>> ubuntu
>> >> > 10.4
>> >> > and all the packages aligned with the respective upstream heads. I
>> >> suggest
>> >> > you to check your syntax and copy/paste efficiency ;)
>> >> >
>> >> > Regards
>> >> >
>> >> >
>> >> >>
>> >> >> But the same error is still exist. Can you modify my pipeline
>> correct,
>> >> >> and
>> >> >> show me.
>> >> >>
>> >> >> Thanks.
>> >> >> --
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>> >> >>
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>> >> David G. Thomson, author of the best-selling book "Blueprint to a
>> >> Billion" shares his insights and actions to help propel your
>> >> business during the next growth cycle. Listen Now!
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>> >
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>> > David G. Thomson, author of the best-selling book "Blueprint to a
>> > Billion" shares his insights and actions to help propel your
>> > business during the next growth cycle. Listen Now!
>> > http://p.sf.net/sfu/SAP-dev2dev
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>> >
>> http://gstreamer-devel.966125.n4.nabble.com/file/n3037177/log.txt log.txt
>> --
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