[streaming] Re: QoS features of vlc related to streaming

[Neil Miles]

Benjamin Pracht wrote:

>On Thu, Apr 07, 2005, Neil Miles (LA/ETH) wrote :
>  
>
>>1) I am interested mainly in MPEG2/4 codecs with MPEG-TS. In the features part of the streaming web
>>page(http://www.videolan.org/streaming/features.html) it seems to suggest that only RAW works with RTP (which is needed for QoS as far as I understand). Perhaps I misunderstand and that MPEG-TS can also encapsulate RTP, if this is true does vlc support this.
>>    
>>
>
>Yes, is is valid to stream MPEG encapsulated in TS over RTP. VLC should
>be able to read such streams (at least the developpment version).
>However, this feature is at least "exprimental" ;)
>
>  
>
One other question not perhaps directly related but interesting is what 
are the plans for implementation of  'trick' features part of MPEG4-AVC?

>>2) If the above is true will vlc client be able to recieve a MPEG2/4 stream and decode with QoS, ie not losing any information even if network is quite loaded?
>>    
>>
>
>There will be artefacts if not all that packets reach the client. In the
>case of video streaming, no send retry is possible. So, it will be the
>role of your QoS mecanism to ensure an as low as possible packet loss. I
>don't thing VLC features any interaction layer with such a QoS system.
>It should however be possible to write such a module.
>
>  
>
>>3) I have noticed some discussion about Kasenna products such media base, can vlc interwork well with this product?
>>    
>>
>
>Well, thedj will certainly answer better as me. If I've understood
>correctly, VLC should interact with some of Kasenna products. However,
>they these tend to be highly ininteroperable, and make massive use of
>proprietary protocols or protocol extensions.
>
>  
>
Well I will certain question them especially about their VoD product. I 
found an archived post 
http://www.via.ecp.fr/via/ml/streaming/2004-08/msg00093.html which is 
very interesting and mentions the problems with Kasenna, does anyone 
know if these were resolved?

Thanks
/Neil

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