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[liangzhihong1984]

 I want do develop a HDV video conference application, and was doing some test to make sure whether GStreamer can help me to do this. Because it needs RTP, RTCP, are they supported by GStreamer? can anybody give me a answer.Thanks.

 

 

 

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[Edward Hervey]

On Thu, 2008-07-03 at 19:32 +0800, liangzhihong1984 wrote:
>  I want do develop a HDV video conference application, and was doing
> some test to make sure whether GStreamer can help me to do this.
> Because it needs RTP, RTCP, are they supported by GStreamer? can
> anybody give me a answer.Thanks.

  You should be aware that HDV cameras will NOT output the encoded
mpeg/ts stream instantaneously (as opposed to standard DV)... so you
will have a big latency between what is shot and what is received on the
firewire bus (we're talking latencies of 1-2 seconds here, which is
unacceptable for any kind of live video-conferencing solution).

>
>  
>  
>  
>
>
>
> ______________________________________________________________________
> 凝傲天成——发现东芝Qosmio之美，精彩奖品天天等你拿
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[Edward Hervey]

I am talking about HDV cameras (http://en.wikipedia.org/wiki/HDV) which
output the encoded data as mpeg-ts over firewire.


On Thu, 2008-07-03 at 13:41 +0200, mattias wrote:

> HD, are we talking 1920x1080 captured?
> We are capturing at 1600x1200 and scaling + cropping it to HD and we are
> getting like 0.2s latency.
>
> Regards,
>
> Mattias
>
> Edward Hervey wrote:
> > On Thu, 2008-07-03 at 19:32 +0800, liangzhihong1984 wrote:
> >  
> >>  I want do develop a HDV video conference application, and was doing
> >> some test to make sure whether GStreamer can help me to do this.
> >> Because it needs RTP, RTCP, are they supported by GStreamer? can
> >> anybody give me a answer.Thanks.
> >>    
> >
> >   You should be aware that HDV cameras will NOT output the encoded
> > mpeg/ts stream instantaneously (as opposed to standard DV)... so you
> > will have a big latency between what is shot and what is received on the
> > firewire bus (we're talking latencies of 1-2 seconds here, which is
> > unacceptable for any kind of live video-conferencing solution).
> >
> >  
> >>  
> >>  
> >>  
> >>
> >>
> >>
> >> ______________________________________________________________________
> >> 凝傲天成——发现东芝Qosmio之美，精彩奖品天天等你拿
> >> -------------------------------------------------------------------------
> >> Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW!
> >> Studies have shown that voting for your favorite open source project,
> >> along with a healthy diet, reduces your potential for chronic lameness
> >> and boredom. Vote Now at http://www.sourceforge.net/community/cca08
> >> _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
> >>    
> >
> >
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> > Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW!
> > Studies have shown that voting for your favorite open source project,
> > along with a healthy diet, reduces your potential for chronic lameness
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> >  
>

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