[vlc-devel] [rfc] warnings on nonsensical chain configurations

Rémi Denis-Courmont remi at remlab.net
Thu May 21 14:00:03 CEST 2009

Le Thursday 21 May 2009 14:41:16 jpd at m2x.nl, vous avez écrit :
> On Thu, May 21, 2009 13:22, Rémi Denis-Courmont wrote:
> > Le jeudi 21 mai 2009 14:18:49 jpd at m2x.nl, vous avez écrit :
> >> I've been toying with fronting vlc for some other rtp/mpeg4 stream, and
> >> one of the things that emerged was that
> >>
> >>   --sout
> >> '#rtp{dst=ip.ad.re.ss,port=nnn,sdp=rtsp://ip.ad.re.ss:mmm/stream.sdp}'
> >>
> >> is a combination that causes breakage. To wit, streaming to (vlc)
> >> clients starts fine but within 30 seconds all or all but one will have
> >> given up.
> >>
> >> I don't know if this is a bug beyond being a nonsensical chain
> >> configuration, but it would perhaps be nice if vlc could at least warn
> >> if the options conflict or cause nonsensical chains to be constructed.
> >
> > I know I'm an idiot, but I fail to see how it is non-sensical.
> The results appear to be, and I'm told this is to be expected when
> knowing anything at all about how the protocol(s) work. If not, then
> the clients giving up on showing the stream within 30s seconds is
> a bug?

To me, this line simply configure an RTP session to a fixed address, and 
advertises the corresponding SDP via RTSP. SAP would perhaps be a more obvious 
choice than RTSP, but I fail to see any fundamental problem.

Rémi Denis-Courmont

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