[mythtv] [mythtv-commits] Ticket #4764: alsa buffer problem introducedin 15893

[Matthew Wire]

AC3/DTS passthru seems to be broken for me here.  Standard audio over
spdif works fine but I just get brief flutters of audio with AC3
passthrough enabled (the amp loses the signal).

I've tried everything mentioned on these lists and some other
combinations of buffer sizes.  Nothing seems to work.


Le vendredi 07 mars 2008 à 19:23 -0500, Daniel Kristjansson a écrit :
> On Sat, 2008-03-08 at 01:05 +0100, Janne Grunau wrote:
> > On Friday 07 March 2008 22:46:20 Mark Spieth wrote:
> > > > tested t4764.diff, but I will as soon as possible. Though 128000
> > > > (=32000*4) is still quite close to 100000 (which was too small).
> > > >
> > > > Digital spdif out doesn't work for me until i changed:
> > > >
> > > > buffer_time = 32000 * 4;    // in usec
> > > >
> > > > to
> > > >
> > > > buffer_time = 32000 * 16;    // in usec
> > > >
> > > > Even a setting of 8 was to small.
> > >
> > > ok looks like spdif needs above 400ms.
> > > does the following work for everyone?
> > 
> > no, unfortunately not. normal stereo output on a HDA Intel (Santa Rosa) 
> > with in-kernel drivers 2.6.24.3.
> 
> For 0.21, is there any serious harm in just always using a 500ms buffer?
> 
> -- Daniel
> 
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