[mythtv] [Experimental PATCH] BIG DVB PATCH V3.2 Released

[Mark Anderson]

On Tue, 21 Dec 2004 07:33 pm, you wrote:
> Mark Anderson wrote:
> >I got ac3 passthrough kinda working! woohoo. After applying my patch from
> >ealier today and the mpeg.c patch it now at least plays some ac3... the
> >decoder reports "Dolby Digital 2/0"!
> >
> >Unfortunately it is not perfect, there are two problems:
> >1. Some frames are missing so the audio cuts out occasionally.
>
> Only on HDTV? Or SDTV as well?
Both, I don't think it is cpu bound.

>
> >2. It only works if you start live tv with an AC3 station, and when you
> > change to a channel without ac3 the audio doesn't work but you can change
> > to other ac3 channels.
>
> Try esc to mythfrontend menu, and click watch TV again, do you get
> sound?? (me still dunno what is causing this, initially tot it was audio
> issue, but now I ain't so sure). My guts tells me nine of of ten this is
> caused by the modified mpeg.c..
>
yes, it will only work for the sound type that it is first initialised for.

> >Will work some more on this later tonight
>
> I'm not sure yet, but this problem we face may have been caused by
> pes_repack() in libs/libmythtv/dvbdev/transform.c, so restore mpeg.c
> from cvs and see if you do up pes_repack... Me will test more tontie....
>
I'm not so sure, it only works if I use the hacked mpeg.c

Mark.
>
> Regards.