[MPlayer-dev-eng] ASF Streaming : patch not fully commited in cvs

Bertrand Baudet bertrand_baudet at yahoo.com
Mon Dec 17 20:33:07 CET 2001


On Monday 17 December 2001 06:56 am, you wrote:
> Hi,
>
> > > > > After the http streaming is done, I want to add RTSP support.
> > > >
> > > > what's that?
> > >
> > > QuickTime streaming. They use RTSP/RTP.
> >
> > And Real Player uses it also.
> >
> > There was somewhere on the net a text based real player which only used
> > the binary only codecs
>
> false. it used everything from realplayer, except the GUI.
> it used audio out, network stuff, demuxers seeking etc.
>
> > - the rest was open source stuff - maybe you can find it
> > and use it...
>
> We know it and we can't use it.
>
> Btw, if you're good in C++, you may tri it.
> realmedia sdk is downlaodable, and has lot's of c++ header files.
> we couldn't even understand how does it work, and if it's possible to use
> only the codecs, or they are mixed too deeply and can be used only
> together. And, as we aren;t good in C++, we gave it up.

Yes, realplayer use RTSP, I already try to reverse their network protocol,
but the use a challenge key between the client and the server, and both
check if the key is comming from a 'trusted' real software.

The only solution is, as Arpi said, to use the SDK. That's in C++ and
they use COM objects. One of my coworker know the SDK, I can
ask him to give me a quick overview and tell you how it works. 
AFAIK, everything is handle by the SDK, the file system reading
(local or network), the demuxer/codec, and the rendering.
I think there is also a licence issue too, I'm not quite possitive
but that something we need to check if we really want to support
real.

Bertrand

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