All things related to multicast

[Frank Fulchiero <>]

Sorry, I can't get anything on QT Player or VLC, not sure if our  
network has some issues.

I see all the usual SAPS in VLC, can open the usual ones, and open  
our multicast 1.5 mbps test stream fine, at
http://video.conncoll.edu/test/playlist1mc.sdp

with both QT Player and VLC

This on a MacBook Pro 2.33 GHz duo, and Dell XP Xeon 2 GHz. Latest  
10.4 and XP, QT and VLC.

Frank Fulchiero
Digital Media Specialist
Connecticut College

On May 5, 2008, at 4:17 PM, Marshall Eubanks wrote:

> Hello;
>
> I have been experimenting with putting all of our H.264 channels out
> as multicasts. Right now there is a 1000 Kbps (1 Mbps) and a
> 2000 Kbps (2 Mbps) simulcast of the "HDVariety" Channel being
> multicast. The SAP files are out there, the SDPs are at
>
> http://www.americafree.tv/multicast_sdp/AFTVHDVarietyH2641000.sdp and
> http://www.americafree.tv/multicast_sdp/AFTVHDVarietyH2642000.sdp
>
> and there are Quicktime mov files at
>
> http://www.americafree.tv/multicast_mov/AFTVHDVarietyH2641000.mov and
> http://www.americafree.tv/multicast_mov/AFTVHDVarietyH2642000.mov
>
> Now, I can look at either bitrate with VLC, but the 2 Mbps never
> opens with Quicktime. The 1 Mbps does fine, the two Mbps never  
> connects.
>
> Here are the observed facts from here
>
> QT will play both 1 and 2 Mbps just fine using unicast
> VLC will play both 1 and 2 Mbps just fine using unicast or multicast.
> It has a tendency to freeze at 2 Mbps.
>
> QT will play the 1 Mbps just fine using multicast, but not the 1 Mbps
>
> Does anyone else have experience with higher bit-rates and mmulticast
> on QT ?
> If anyone can get the 2 Mbps multicast stream to work, I would like to
> hear of it. It may be that my
> laptop is not powerful enough, but it plays the 2 Mbps unicast.
>
> I would like more information before I make a bug report to Apple.
>
> Regards
> Marshall