[MPlayer-advusers] Re: rtsp fallback to http and different formats over rtsp?

[Shachar Raindel]

On Tue, 1 Mar 2005 11:46:42 -0500, compn <tempn at twmi.rr.com> wrote:
> On Thu, 20 Jan 2005 13:16:48 -0800
> Ross Finlayson <finlayson at live.com> wrote:
> 
> >
> > >On 2005.01.19 15:07, compn wrote:
> > >>rtsp://wmvstream.surfnet.nl/a/av-user-uva4/assets/349/Frank_VTS_08_1-
> > >>mpeg1-vhs-wmdvd-med.wmv
> > >>http:// works, but mplayer does not failback rtsp:// to http://
> > >>automatically.
> > >
> > >That's a different problem. wmv over rtsp is not implemented yet
> >
> > Even worse: WMV over RTSP is not even *defined* yet - at least, not in any
> > document that I've been able to find.
> >
> > Running "openRTSP" on the "rtsp://" URL above reveals that the stream uses
> > three 'experimental' RTP payload formats: "audio/X-ASF-PF",
> > "application/X-WMS-RTX", "video/X-ASF-PF".  However, I don't know anything
> > about these payload formats; they seem to be Microsoft-specific crap.
> >
> >
> >       Ross Finlayson
> >       LIVE.COM
> >       <http://www.live.com/>
> 
> hmm, this cant be good. thank you for the info.
> 
> another sample stream:
> rtsp://195.219.160.200/mcp?chid=25&pid=196&vid=2402201&br=800&tid=1&void=2844&muk=H1J4yFr0mJB
> 
> this time the http trick does not work.
> 
> it reports:
> Failed to initiate "audio/X-ASF-PF" RTP subsession: RTP payload format unknown or not supported
> Failed to initiate "video/X-ASF-PF" RTP subsession: RTP payload format unknown or not supported
> from: http://player.narrowstep.tv/nsp.aspx?player=F1R&void=2844

VLC has implemented support for this wicked format. Go and steal it ;-)

After quick testing, it seems like VLC 0.7.2 is now not working with
M$' "RTSP" protocol (it used to work, but it broke down somehow).
Tough luck. Don't you just love M$?


   Regards,
   Shachar, who's Uni. force him to use this protocol to see his video lectures.