[mythtv-users] Playstation 3 as UPnP client to MythTV

Rev Simon Rumble simon at rumble.net
Wed Mar 4 11:53:14 UTC 2009


It's taken me a while to get back to this.

This one time, at band camp, Andre Newman wrote:

> I agree that the PS3 gives excellent video results, I'm a broadcast  
> engineer and the PS3 gives some of the best results scaling and de- 
> interlacing outside of broadcast equipment and it gets gradually better 
> every firmware revision.

Yeah it is really quite amazing.  I'm consistently impressed by the 
video quality, especially when I switch back to an SD source like the 
PS2 or my DVD player (for DVDs from other regions).

> Currently it won't play ac3 in a ps (programme stream), I used to remux 
> my BBC HD recordings (my main source of ac3) into ps with VLC scripted 
> but that doesn't work anymore.
> Currently the PS3 will only play ac3 if it's in a transport stream but  
> it's quite fussy about the transports stream, fussier than the  
> transmission engineers at most TV stations!

Yeah it seems very fussy.

> Do you use bitstream or PCM in the PS3 settings, the white noise is what 
> AC3 sounds like when the PS3 or a surround amp thinks it's PCM.

I've tried both.  I'm just using the audio on my telly, connected to the 
PS3 over HDMI.  Wouldn't have a clue what it supports.

> That's surprising, I would have expected you to get different results  
> from different channels but these look like the same channel!

Yeah it's quite strange.  I only really watch two channels most of the 
time, so I expected consistency.  I think multirec might have something 
to do with it.

> Do you use multirec? I've noticed some odd things that multirec does to 
> transport streams to separate one channel from the multiplex, I'd give it 
> a try with and without multirec to see if there's any difference. 
> Multirec (or the changes needed to implement it) fixed a few problems I 
> used to have.

I haven't had a chance to try without multirec yet, but will try that 
shortly.  That said, I'm pretty keen on the multirec feature!  It means 
overlapping programme start/end times don't need >1 tuner.

> That's it, worth it for the better image quality though, especially if  
> you have a HDTV or any kind of flat panel, although VDPAU is getting  
> closer all the time.
> Have you found the 50Hz playback setting, works wonderfully?

Not quite sure what that is.  I'm playing out at 1080p, so would it 
really matter?

> You could post a few minutes of the video that causes the problem  
> somewhere.

I might try recording some random (short) snippets to do that.

> Oddly the rules for what plays over uPnP are not the same as what plays 
> from harddisk which is not the same as what plays from bluray or AVCHD! 
> I've often got things to play by copying them from the uPnP server to 
> harddisk (triangle menu).

Yes I've found this too!  It seems quite content to play some content 
from the hard drive, but not otherwise.  Most annoying.

-- 
Rev Simon Rumble <simon at rumble.net>
www.rumble.net

The Tourist Engineer
Because nerds travel too.
http://engineer.openguides.org/

 "The problem with political jokes is they get elected."
- Henry Cate


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