[FFmpeg-devel] select interface for multicast messages

Tudor SUCIU tudor.suciu at gmail.com
Tue Jan 3 15:58:30 CET 2012

I know the patch but in my tests only the setsockopt (
MCAST_JOIN_GROUP) helps in receiving the multicast data. If I
understood well the multicast protocol, the switch/router needs to
receive an IGMP packet in order to send the udp traffic. The tiket 368
patch seems related to selecting the source of the udp traffic if it
arrives from several IPs. I have tested on a sample program different
approaches and setsockopt ( MCAST_JOIN_GROUP) was the only way to
receive the udp packets. From my point of view this is not a duplicate
of ticket 368. If I need to detail the setup where my patch is needed
I will detail it as much as I can taking into account that the network
setup is not made by me. (eth0->br0, udp from on vlan

On Tue, Jan 3, 2012 at 3:25 PM, Carl Eugen Hoyos <cehoyos at ag.or.at> wrote:
> Tudor SUCIU <tudor.suciu <at> gmail.com> writes:
>> I used VLC sources in order to duplicate the --miface option so that
>> we could receive multicast udp from a specific interface.
> A similar patch was posted in Ticket 368 some time ago, afaict.
> Carl Eugen
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