[gst-devel] ASF over RTSP/RTP?

[Eric Zhang]

Hi, gstreamer-devel:

    1. MMS has been deprecated and now windows media player will first try
to use RTSP method to play a `mms://' movie.

    2. Now in gstreamer, rtspsrc sends a PLAY method with Range header to
perform seek but some RTSP server needs the client PAUSE the play first. So
that's why the seek doesn't work. I have submitted a bug report to gstreamer
and the bug has been accepted so I think the seek will be ok in next
gst-plugins-good release.

Eric Zhang

2008/12/2 Maxim Levitsky <maximlevitsky at gmail.com>

> On Mon, 2008-12-01 at 17:27 +0200, Maxim Levitsky wrote:
> > On Mon, 2008-12-01 at 09:50 +0800, Eric Zhang wrote:
> > > Hi, gstreamer-devel:
> > >
> > >     It's cool, I also need an asf depay. I think this plugin will be
> > > added into gstreamer soon.  Maxim, which rtsp server do you use? It
> > > only supports TCP? I am looking for a TCP environment for RTSP/RTP
> > > testing, Thanks.
> > This is internal university server.
> >
> > The problem is that that server DO support audio via udp, but doesn't
> > support video via UDP:
> >
> >
> > RTSP/1.0 461 Unsupported Transport
> > Date: Mon, 01 Dec 2008 14:51:40 GMT
> > CSeq: 4
> > Session: 15470279350565986777;timeout=120
> > Server: WMServer/9.1.1.3862
> > Supported: com.microsoft.wm.srvppair, com.microsoft.wm.sswitch,
> > com.microsoft.wm.eosmsg, com.microsoft.wm.fastcache,
> > com.microsoft.wm.packetpairssrc, com.microsoft.wm.startupprofile
> >
> >
> > It would be great to see that patch in gstreamer.
> >
> >
> > Best regards,
> >       Maxim Levitsky
> >
> >
>
>
> Here an example:
>
> rtsp://
> wm.nasa-global.speedera.net/wm.nasa-global/ksc/edw_113008_sts126_landing.wmv?SAMI=http://anon.nasa-global.edgesuite.net/anon.nasa-global/ksc/edw_113008_sts126_landing.smi
>
>
> Note that actual url was mms://
> Usual microsoft tactic.
>
> How about to detect this, and use rtsp as a fallback to mms:// ?
>
> What do you gstreamer developers think?
>
> It seems that things are rather inactive here.
>
> Best regards,
>        Maxim Levitsky
>
>
> PS:
>
> When trying to watch media on the web, I run into lots of unsupported
> files, some, and maybe many are supported, but for some reasons don't
> work.
>
> I try to provide you with links and detailed explanation of issues.
>
>
> Also I want to note that for some reason seek doesn't work with the asf
> over rtsp, maybe the rtsp is guilty as it never sends PLAY with range
> params, instead it sends TEARDOWN
>
>
> Hope you don't ignore me, as I want to help at least a bit to make
> linux on-line video experience a bit better.
>
>
>
>
>
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