[vlc] Re: VLC and Kasenna

[deon stoltz]

Hi Dennis

Thanks for your help. I will look into your suggestions. The note about
the file length being too small may also being a problem since when one
is testing you do not want to create longer files than necessary!

Regards
deon

On Wed, 2004-09-01 at 15:40, Dennis van Amerongen wrote:
> Hi Deon,
> 
> Yes we have succesfull importing of of about 100 TS streams/assets
> on a Kasenna Mediabase server all day long :) The MPEG2's we use are
> made with Mobius MPEG2 hardware encoders.
> 
> We had the exact same Kasenna errors you mention with MPEG2's produced
> with an older encoder SDK/driver where the transport PES size setting
> used in the encoder wasn't the optimum of 2024.
> 
> A transport PES size of 2024 is a multiple of 184 (188 - 4 header)
> this reduces/eliminates Zero Length Adaption Fields in the stream.
> 
> Zero Length Adaptation Fields seem to break many parser/demultiplexer
> implementations (Stradis analyser, Kasenna Mediabase, older Kraetel
> set
> top boxes etc.) despite the fact that this is legal MPEG!
> 
> So basically Kasenna has problems calculating the proper bitrate with
> Zero length adaption fields in the stream and mis-interprets the
> stream
> as being <64kbit and refuses to import. (It also can't calculate
> properly
> if the file to be imported is too small, let's say a few seconds in
> length and then it also gives the same error).
> 
> The optimized transport PES size also majorly improved streaming to
> all
> sorts of streaming clients (VLC, set top boxes etc.) from our
> platform.
> 
> So I suggest you take a look at the PES size that is used in the
> encoded
> files or perhaps the files you use are too small...
> 
> P.S. we even manage to encode/stream live MPEG2 and MPEG4 (x264) with
> VLC to
> the Kasenna server, and stream/cast this live (simulated or true
> multicast)
> using the Kasenna server and it's playable from VLC as well (and
> playing
> on-demand MPEG2 files with VLC from Kasenna server is still
> experimental).
> 
> Hope this helps..
> 
> Dennis
> 
> 
> 
> -----Oorspronkelijk bericht-----
> Van: deon stoltz [mailto:deon at cyberconn.co.za]
> Verzonden: woensdag 1 september 2004 2:53
> Aan: vlc at videolan.org
> Onderwerp: [vlc] VLC and Kasenna
> 
> 
> Has anybody had success in loading video assets on a Kasenna Server?
> I am using vlc to convert vob files to TS streams (required by
> Kasenna,
> MPEG2) but the server rejects it with the message:
> "asset has a bit-rate less than 64 kbps"
> 
> Using VLC-0.7.2 on FC2
> 
> Any help much appreciated
> Deon
> 
> -- 
> This is the vlc mailing-list, see http://www.videolan.org/vlc/
> To unsubscribe, please read http://www.videolan.org/support/lists.html
> 

-- 
This is the vlc mailing-list, see http://www.videolan.org/vlc/
To unsubscribe, please read http://www.videolan.org/support/lists.html