[vdr] Re: vdr-1.3.18: DolbyDigital "stuttering" sound

[Klaus Schmidinger <Klaus.Schmidinger@cadsoft.de>]

christian jacobsen wrote:
> Hallo,
>
> First I would like to say thanks to Klaus, Werner and everyone else who
> have helped for this milestone for VDR :)
>
> I have always had some trouble getting stable Live DD sound with VDR
> using Transfermode.
> Sometimes it works quite nice, means only "stuttering" once and a while,
> but other times it "stutters" from the beginning. The "stuttering" then
> happens very offen - somtimes 1-2 times a second and sometimes it works
> some seconds before "stuttering" again. This is quite disturbing :(
>
> During the testing of the new FW I did some tests with only one card
> and/or a bigger delay to fill the ringbuffer and noticed that I did
> help. I also noticed that with one card it was easier to get sound
> "stable". At least with two cards I think it needs some more buffering
> ...
>
> Could someone show me what I could change that for testing or send me a
> patch ?
>
> If it works it would be nice if there was an option for setting a bigger
> delay, something like "Live DolbyDigital Delay" ...
>
> @Klaus: yes I know you "hate" unnecessary options ;) but this one would
> really be nice as everyone could find the best setting for them selves. 
Does your DVB card have 2MB or 4MB SDRAM?

In case it's a 2MB card, which value would you need in VDR/transfer.c in

   if (ringBuffer->Available() < 3 * KILOBYTE(192) / 2)

instead of the default '192'?

Maybe VDR could automatically switch between these two values, depending
on whether a 2MB or a 4MB card is present.

Klaus