Log in

View Full Version : Help, newbie trying to improve DVB source


eXtremeDevil
13th February 2011, 15:27
Hi, I'm kind of newbie at Avisynth usage. What I usually do is download filters and then see the results in AvsP. Well, I capture a program from my DVB-S company, here's the sample:

TS: http://www.mediafire.com/?j4iph7io40x3tcc

D2V: http://www.mediafire.com/?krvw20m7cm04jyb

I don't know if it's my capture machine who reduce the video quality or the broadcast is actually that crappy, take a look when the fake Obama appears, all that blocking, or I think it's blocking.

My avs for encode that capture has always been this one:

MPEG2Source("SNL.d2v")
YADIFMod(edeint=nnEDI2())

So now I'm trying to improve the quality, and remove all that deblocking, or whatever that is. I don't know if it can be improved, I've been trying with no results, so I ask you guys, who know a lot more than me.

I saw this in this same forum: http://forum.doom9.org/showthread.php?t=127162

Maybe is the same case? If so, maybe my capture is still in time to be improved so it's not that crappy haha

Anyways, thx a lot in advance :)

eXtremeDevil
14th February 2011, 09:20
Anything?

eXtremeDevil
17th February 2011, 15:50
Anyone has any clue? It can be improved the video or should I desist?

RunningSkittle
17th February 2011, 23:00
Upload to *anything* besides rapidshare (try "mediafire"). No one can download it as of now.

eXtremeDevil
17th February 2011, 23:43
Done.

manolito
18th February 2011, 01:46
I don't know if it's my capture machine who reduce the video quality or the broadcast is actually that crappy, take a look when the fake Obama appears, all that blocking, or I think it's blocking.

Hi eXtremeDevil,

I downloaded your sample from Rapidshare, but frankly I do not see any problems with it. Are you talking about the crossfade between the plaque in the intro and the fake Obama? This was in the original for sure, this is how a crossfade looks.

Otherwise the quality looks absolutely normal for a DVB-S capture. And your capture machine did not do any damage. I ran the TS file through ProjectX to repair any transport stream errors, but there were no errors at all.

And why do you have to deinterlace the source at all? If you intend to convert it do DVD, just encode it as Interlaced TFF.


Cheers
manolito

eXtremeDevil
18th February 2011, 20:21
Hi manolito,

Thx a lot for your answer, I didn't know If there was a problem with the broadcast, or my recorder, or wasn't problem at all, because I don't know that much of all this stuff. I just wanted to know if there was a way to improve and get the best quality from the .ts, but now that you say that it is a broadcast thing that "crossfade" (I didn't even know the name of it), well, it's a relief. And I want to deinterlace because what I do with the video is convert it to a mkv x264 and also to a avi mpeg4. Thx again :)

zee944
20th February 2011, 14:25
There's indeed blocking during the crossfade. It's probably because of the (on the fly?) compression. I'd try Deblock_QED filter on it.