[mythtv] [MASSIVE PATCH] BIG DVB PATCH V3.5 Released
Tj
htpc at treblid.dyndns.org
Sun Jan 9 20:04:02 EST 2005
Tim Davies wrote:
>Just so you have another point of reference...
>
>I get stuttering on the HDTV video too. I haven't had any success with AC3
>yet, but I haven't tried very hard. So my testing is based on Seven HD,
>which has the MPEG stream too. And yes, it is a lower bitrate than Nine or
>Ten, but they crap out on me at the moment because of the AC3.
>
>
>
7 is good for testing at least. My receiver loads the Dolby Digital
Decoder on Sunday when I watched 7HD's loops. Most of the time though,
Dolby Pro Logic II is used on all AC3 APIDs on every channel. Not sure
if this's a bug in Myth or the stations just broadcast them in 2
channels (although there's a Dolby Digital watermark that says surround
sound).
>It seems to stutter (~50% of the time) if I *change* to an HD channel. If I
>start on the HD channel, it works fine. If I record HD and start watching
>the recording straight away, it works fine too.
>
>I thought about pausing the stream for a short while to see if the stutter
>would go away, but that doesn't work. So what is it about a channel change?
>
>
>
No ideas on this yet. :( I previously tot my CPU wasn't fast enough (2.6
o/c'd to 2.8) ..
>I'm having a look at Mark Anderson's patch now to see what makes it tick.
>Should I be able to get this working with software AC3 decoding?
>
>
>
Yes you should (havn't tested it on Mark's patch though). It's a bit
crude, on my system, add the line "DEFINES += CONFIG_AC3" in both
config.h (you can do that automatically by running "configure
--enable_a52" I think) and in settings.pro. Do a distclean and recompile
myth.
There's also this option "--enable_a52bin" you can play about with (but
this doesn't work last time I was on Mandrake 10.1 CE)..
Also in Mythtv settings->general (or something), make sure "AC3
Passthru" is off.
Regards.
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