crappy quality

cytotoxin

New member
I converted a dvd to xvid in resolulution: 720x576 but when I'm playing the xvid file some parts of the movie have a bad picturequality and there is a lot of small "squares" all over the picture. what do you think is wrong, is it the software or is it my computer?
 
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Sounds like macroblocks cause by a low bitrate/high quantiser. You should at least crop any black borders off before encoding also make sure that you set the PAR correctly when encoding so that it will be resized correctly on playback otherwise it will simply playback at 720x576.

Would help if you posted what settings you used for encoding, also your AVISynth script assuming that you are using one.

Also assuming that you did a two pass encode, what was or would have been the size of the first pass and what did you use for the second pass file size?
 

cytotoxin

New member
for converting to xvid I used a program called 1clickdvdripper because I wanna have subtiles that I can play in every player
then also I don't wanna have to much complicated work when ripping a dvd

in Xvid configuration I used 1pass CBR and the bitrate was 900kbps (the highest bit rate you can have in tis mode is 10000kbps)

the other output settings was:
resolution: 720x576
zoom: full 16/9 or 4/3 input
and audio was: lame 128kb joint stereo
 
900 for most sources would be a little low for an encode at such a high res, especially 1 pass without pre filtering. Hmm, only goes upto 8000 for me... Sounds like you are still using a devapi3 build to me, which means it doesn't even have a PAR setting so you should definatly be getting distorted output, especially if the source is 16:9.

My advice would be to switch to a devapi4 build such as Koepi's 1.0RC3. Use two passes or possibly even 3 using ARCalculator. I would also use he aac for the audio, allowing for a higher video bitrate.

By subtitles that work in every player I assume that you are talking about burnt in subs? Same can be done using AVISynth to frameserve.
 

cytotoxin

New member
if 900 is low, what is normal then?

but it's pal movies im ripping and I thought that 16/4 was needed for pal, is tahat right?

where can I find koepi 1.0RC3?

yes it is burnt in subs from the dvddisc
 
Normal is whatever bitrate is the maximum that you can use and still fit it on whatever media you are going for. This would also determine the resolution that you use. So for a set bitrate you may actually get higher quality by lowering the res. Could also up the bitrate, but then it would no longer fit.

When you playback a 16:9 DVD it is not displayed as 720x576, it is resized on playback. So if the source is 16:9 then you either need to resize to 1:1 or set the PAR so that it resizes correctly to 16:9 on playback.

You can find Koepi's builds as always on his site and before you ask where that is try searching.
 

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