[Live-devel] Multicast Streaming again

[Aeschbacher, Fabrice]

Hi,

We already experienced the same problem. We found two different
solutions:

1) Kernel path for the udp driver (see attachment)

2) Do NOT bind with INADDR_ANY but with the multicast address:
 
 ...
 // Following DOES NOT work as expected: the socket will become
 // datagrams from ALL multicast addresses on the same port
 //saddr.sin_addr.s_addr = htonl(INADDR_ANY); // bind socket to any
interface

 // Whereas following works: socket will only see datagrams
 // from 'multicast_addr'
 saddr.sin_addr.s_addr = inet_addr(multicast_addr);

 status = bind(sock, (struct sockaddr *)&saddr, sizeof(struct
sockaddr_in));
 ...

Solution 1 implies to rewrite a new patch for every new kernel, but
implies no modification to live555

Solution 2 can be used with any kernel, but needs to patch live555.

Best regards,
Fabrice Aeschbacher

 

> -----Original Message-----
> From: live-devel-bounces at ns.live555.com 
> [mailto:live-devel-bounces at ns.live555.com] On Behalf Of Marian Kogler
> Sent: Dienstag, 24. Juni 2008 10:30
> To: live-devel at ns.live555.com
> Subject: [Live-devel] Multicast Streaming again
> 
> Hello again!
> 
> I have recently posted a mail concerning multicast streaming 
> over two different ip addresses and the same port.
> (e.g. ip 1: 239.255.42.42 .. port: 5008
> ip 2: 239.255.42.43 .. port: 5008)
> When i tried to receive the right streams the two streams got merged.
> Source Specific Multicast was not a solution for me!
> You told me that I should use another OS (former OS: Ubuntu 
> 7.10), because it is responsible for this and not the live library.
> Now my question: 
> Which is the right OS? Can I use "Red Head Linux Enterprise 
> 4" , without sending  two streams to two different ports?
> I hope you can help me!
> 
> 
> _______________________________________________
> live-devel mailing list
> live-devel at lists.live555.com
> http://lists.live555.com/mailman/listinfo/live-devel
> 
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