AC3 in Australia (Was Re: [mythtv] DVB 3.4 report)
markjanderson at mail.com
Fri Jan 7 16:22:16 EST 2005
On Fri, 7 Jan 2005 11:55 pm, Hamish Moffatt wrote:
> On Fri, Jan 07, 2005 at 09:23:47PM +1100, Mark Anderson wrote:
> > The attached patch should allow AC3 audio to kinda work with big dvb 3.4
> > in Australia. It still stutters regularly, but you can switch between
> > stream types properly and even enable AC3 through the gui.
> > Note 1: There is also a hacked fix for a floating point exception (div by
> > 0) I was getting on HD channels.
> > Note 2: To enable AC3 audio you must set the "Use Dolby digital audio
> > where available" checkbox in the general settings page (next to Enable
> > AC3 passthrough).
> Should the AC3 passthrough option be enabled as well?
That's depends on weather you are using SPDIF passthrough to your decoder
(optical or coax cable) or you are doing software AC3 decoding. I have only
been able to test my changes with AC3 passthrough but they should also be
relevant to software AC3 as well. I am not sure if sofware AC3 works out of
the box (there was a thread late last year about it)
> I'd like to test it but I think the backend assertion failure when
> changing channels in live TV will prevent it. Does that happen
> to you?
No, SD channels work almost perfectly for me. I am using dual avermedia 771s.
Although I do get xvmc assertions when running HD channels with XvMC enabled
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