Re: Playing an Rtp stream
From: Jeremy Noring (jnoring_at_wilife.com)
Date: 03/02/04
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Date: 2 Mar 2004 10:18:00 -0800
Tauseef,
As far as I know, DirectShow doesn't include or expose any RTP filters
except in Windows 2000 (Intel RTP filters, or something of the sort),
and from what I've read online, it's not recommended that you use
them--where did you get the RTP filters, and how are you implementing
them? Do you do any configuration on them? And what sort of audio
type are you using?
I do know that the current DirectShow has no RTP filter documented or
supported for any transfer. I have found that the WM ASF Reader
actually uses RTSP/RTP when you specify an MMS extention with the new
Windows 2003 Media Server, but it's not documented and you don't seem
to have any control over it--I found this by doing packet captures
with ethereal while streaming video to the ASF Reader. I'm not sure
why MSFT is hiding (or understating) the fact that they have a vanilla
RTP implementation in the ASF Reader, but currently that seems to be
the state of things.
tauseef_hasan@yahoo.com (Tauseef) wrote in message news:<d51f87f6.0403012308.1a308c71@posting.google.com>...
> Hi Jeremy ,Thanx for ur info
>
> Actually i am a newbie in this DirectShow programming ..so some
> clarifications i am having
>
> As per your question,
> I am using DirectShow filters which are provided by DirectX SDK
> i have installed this SDK in WindowsXP.
>
> On the tranmit side i am using the following
>
> Audio Capture Device Filter----> RtpSink filter
>
> On the recieving side i am using
>
> RtpSource Filter---->Audio Renderer Filter
>
> I am not able to play the stream on to my default output device.
> When i add these two filters to my FilterGraphManager and do a render
> on the pin I get an ClassFactory exception
> "ClassFactory cannot supply requested class :Return Code 0x80040111"
>
> One more question i would like to ask that there is an Rtp Source
> Filter that is a part of DirectShow filters.When in want to insert
> this filter into the GraphEdit utility that comes as DirectX utility
> i get the exception "ClassFactory cannot supply requested class
> :Return Code 0x80040111".Can u shed some light over this??
>
> Thanking u in anticipation
>
> Tauseef
>
>
>
> jnoring@wilife.com (Jeremy Noring) wrote in message news:<e89a9966.0402261012.171664fb@posting.google.com>...
> > tauseef_hasan@yahoo.com (Tauseef) wrote in message news:<d51f87f6.0402250329.440ab5de@posting.google.com>...
> > > Hi experts
> > > I have somehow managed to recieve an Rtp stream.I have a filter
> > > which is capturing the rtp stream(and the data).I want to render the
> > > stream through another filter such that i am able to hear the voice
> > > contained in that
> > > RTP packet.Can anybody help???
> > >
> > > tauseef
> >
> > Tauseef,
> > What filters are you using, and what media types? If you can give
> > more information about what your configuration and filter graph look
> > like, I can probably help.
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