[mythtv] [MASSIVE PATCH] BIG DVB PATCH V3.5 Released

Tim Davies tim at opensystems.net.au
Mon Jan 10 02:16:38 EST 2005


Right, I've had a go with the AC3 patch against DVB Patch V3.5.

I modified it slightly (not stomping on anyone's toes here):

- I removed the transform.c stuff (that is apparently fixed)
- I changed wantac3 to prefer_ac3 to match what was in sitypes.h - horses
for courses...
- I didn't remove the "enc->channels = 2" in avformatdecoder.cpp.  This
stopped the software AC3 from working.  Is it necessary?

I have two thoughts about the ugly hack in mpeg.c.  Either the broadcasters
here are not sending a 0x80 startcode, or the AC3 packet isn't aligned with
the pes packet.

Do any of you guys get horrible blockyness watching Nine HD (and to a lesser
extent Ten HD)?  I can make it go away completely by recording the transport
stream, but I don't think mpegts.c is quite finished as I never get any
audio on any channel.

Maybe the pes filtering in my card is crap.

Tim.


-----Original Message-----
From: mythtv-dev-bounces at mythtv.org [mailto:mythtv-dev-bounces at mythtv.org]
On Behalf Of Mark Anderson
Sent: Monday, 10 January 2005 2:52 PM
To: mythtv-dev at mythtv.org
Subject: Re: [mythtv] [MASSIVE PATCH] BIG DVB PATCH V3.5 Released

<snip>
> >>So far, v3.5 is much more stable, mythbackend and mythfrontend hasn't
> >>crashed yet in 4 hrs (unlike v3.4 where it crashes frequently).
> >
> >Hmmm, I couldn't even get mine running for two minutes, I must have done
> >something wrong 'cause noboby else seems to have the problems I had. Btw
> > what cvs command did you use to get the myth code to patch the 3.5 onto?
> > There doesn't seem to be any tags for the dvb patches so I use the date
> > which may not work depending on when the patch was created within the
day
> > and what gets commited after it.
>
> I always checked out the latest version, "cvs -z3 -q -d
>
> :pserver:mythtv at cvs.mythtv.org:/var/lib/mythcvs co mythtv", the patches
>
> almost always applies cleanly.
>
Only if you checkout close to the release of the patch.

I built 3.5 against CVS from this morning and it now works fine. Must have 
checked out at a bad time (-D20050108).

> >>Recordings with AC3 seems broken (may me due to Mark's patch?). will
> >>find out more later.
> >
> >Recording AC3 works fine in my setup. In what way is it broken?
>
> no audio .. I recorded a few programs and it all went fine, until when I
> tried to watch "Law & Order: Criminal Intent" on channel 10, there's
> video but no audio. Will test more tonight.
>
Can you show me the log from the backend when it starts recording? 

>
> Regards.
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