
> >change the network link characteristics and stream the same mpeg2 and
> check
> >its quality w.r.t the original.


If the network link is lossy, it will drop packets. Which will lead to a
degraded output at the other end. 
Besides, if the network link has lesser / variable bandwidth, that would
cause the packets (and hence frames) to reach the destinations with some
delay / jitter. So that would again lead to degraded output at the other
end. 
So what I really want to do is, check/study the effects such as *these* on
the streamed video, in terms of its quality (PSNR). 

What I meant was this. I am sorry, if I did not put it correclty in the
earlier post. I hope now I am clear.
So coming back to the problem statement, I want to save_the_mpeg2 file on
the other_end_of_the_network, so that I can then compare the original mpeg2
and the saved one. Better still, if I could save it in YUV format.

In the mean time, I am looking at the code, and I think, to save it in the
YUV format, I'll have to look into the SDL_Overlay structure, and the
pointers there in. Am I on the correct path ?

Thanks again, for your time and consideration.

Harshad



On Sat, 10 Aug 2002 14:18:22 +0200 Christophe Massiot wrote:

> At 22:30 -0400 9/08/2002, Harshad Bhutada wrote :
> 
> >What I really want to do is not test the quality of decoder and encoder,

> >but test the quality with respect to the network link. That is, I want
> to
> >change the network link characteristics and stream the same mpeg2 and
> check
> >its quality w.r.t the original.
> 
> The network link doesn't imply any quality loss at all. The network 
> link isn't analogic, the stream on the client is exactly equal to 
> what has been sent by the server. Otherwise you would get your mails 
> with missing words.
> 
> Thus, what you want to do is pointless.
> 
> -- 
> Christophe Massiot.
> 
> -- 
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