Log in

View Full Version : Encode 1080i -> 720p???

dragon_warrior
26th September 2010, 13:04
Hi there, I have some HD 1080i videos and I wanna rip it to HD 720p ones. Everything went fine except this

Source :
http://img829.imageshack.us/img829/2916/ladygagabadromanceh264p.jpg

Output
http://img826.imageshack.us/img826/2916/ladygagabadromanceh264p.jpg

Also, this is my script:

DirectshowSource("E:\Nhac\Music Videos\HD-VOB Music Videos\Lady_Gaga___Bad_Romance__H264_Palladia_1080i_AmazonBoy_.ts")
crop( 10, 10, -10, 0)
LoadCplugin("C:\Program Files\RipBot264\Tools\AviSynth plugins\Yadif\Yadif.dll")
video=yadif(mode=0,order=1)
Spline36Resize(1280,720)
Import("C:\Program Files\megui\tools\avisynth_plugin\SeeSaw.avs")
a= last
b=a.degrainmedian(limitY=3, limitUV=5,mode=0).VagueDenoiser(threshold=1.2, method=1, nsteps=6, chromaT=0.8)
SeeSaw(a,b, NRlimit=3, NRlimit2=4, Sstr=1.5, Slimit=5, Spower=5, Sdamplo=6, Szp=16, sootheS=20)
video=Levels(video,16, 1, 235, 0, 255, coring=false)
Grainfactory3(1,1,1)

Is there anything wrong? What can I do to enhance the quality, I mean, to make the video looks better? My eyes tell me that the video is too blurry for a HD-720p

P/S: I used RipBot264 instead of MeGUI :thanks:
ajp_anton
26th September 2010, 15:02
Is that the output of the Avisynth script, or from the decoder after you encoded it?
dragon_warrior
26th September 2010, 15:15
Is that the output of the Avisynth script, or from the decoder after you encoded it?

It was captured after I encoded it
ajp_anton
26th September 2010, 17:12
Why not take a picture of Avisynth's output to find out if you're even posting in the correct forum?
My guess is the problem is in the h264 decoder.
setarip_old
26th September 2010, 19:03
That source material looks more like VHS quality rather than 1080i (LadyGaga notwithstanding)
dragon_warrior
27th September 2010, 05:46
Yep, that's one of my problems
It does not looks good as it's supposed to :(
I'm wondering if there is any way to improve the video's quality =.=
Usedocne
27th September 2010, 16:30
@dragon_warrior

setarip_old's right. That source has next to no detail, imo it'd prolly be better of downscaled to SD.
dragon_warrior
28th September 2010, 05:02
@dragon_warrior

setarip_old's right. That source has next to no detail, imo it'd prolly be better of downscaled to SD.

You mean i'd better downsample it to SD, not to HD-720p?
Usedocne
28th September 2010, 14:10
Yep, there's very little detail to warrant the extra res imo.
Didée
28th September 2010, 14:20
Chances are the source really is SD that has been upscaled for "HD" transmission.

Make a resize down to 720x576, and back to 1440x1080. Then watch out if you can spot any difference ...
Ghitulescu
28th September 2010, 15:18
Chances are the source really is SD that has been upscaled for "HD" transmission.
A good VHS probably looks better ...
dragon_warrior
28th September 2010, 16:18
So, it's impossible to enhance the video, isn't it :((
Friday007
29th September 2010, 06:56
You need upgrade to the latest H.264 AVC codec.
dragon_warrior
29th September 2010, 08:19
You need upgrade to the latest H.264 AVC codec.

Btw, what I actually need is (some) filters that can do the enhancement while downscaling from 1080i to 720p