[linux-dvb] Re: Lipsync

[Dennis Noordsij <dennis.noordsij@movial.fi>]

Hi Tomi,

Thanks for your reply!

> What programs -- I could give those a try.

Well, Late night with conan o'brien (just about every weekday at about 11pm on 
SubTV) is a sure hit. Maybe for the first 10 minutes or so it sort of 
corrects itself every now and then but then it will get really bad.

> I'd suggest try playing the material using mplayer (and on monitor, not via
> TV-out of dvb card (well test first with monitor). If that is in sync, the
> source material is just too bad (and I don't think any combination of
> kernel/dvb-driver fixes that).

Yep, did that, but it also wasn't in sync. Using the vdr streamplugin caused 
mplayer to bail out every few minutes (libmpeg2 segfault errors), the sync 
wasn't right either though.

I ran the dvb-mplex from the Metzler Bro's mpegtools package, for a known good 
(synced) source it said APTS-VPTS is around 500ms, for the bad source it was 
about 650ms. (pesplot quickly consumes all my memory and I didn't have time 
to dig into that, did I miss something? :)

The result from the remuxing didn't fix the sync though.

Mind you I wouldn't put it above the broadcasters to send it out out of sync, 
considering what they do with the EPG etc :-)

Cheers,
Dennis



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