1080p to 720x576

[speedyrazor]

I am down converting 1080p material to 720x576p using the below script. The resulting file has some 'jaggies'. Is there a better way to do this?

QTInput("1080p.mov", quality=100, audio=2)
ColorMatrix(mode="Rec.709->Rec.601", clamp=0)
Spline64Resize(720, 576)

[StainlessS]

If there are 'jaggies' already on source then I think Spline64Resize might emphasize them (is sharp), try Spline36Resize (neutral) or other.

[speedyrazor]

If there are 'jaggies' already on source then I think Spline64Resize might emphasize them (is sharp), try Spline36Resize (neutral) or other.

There are no jaggies on the source.

[kolak]

Is your source progressive?

[speedyrazor]

Is your source progressive?

Yes, its 1080p.

[TheSkiller]

Where do you see the jaggies? Do you see them when looking at the script in VirtualDub? Do you see them after encoding while watching the video?

[Katie Boundary]

try bilinearresize

[speedyrazor]

Where do you see the jaggies? Do you see them when looking at the script in VirtualDub? Do you see them after encoding while watching the video?

I see them after encoding and watching on the DVD.

[colours]

I see them after encoding and watching on the DVD.

Maybe it's because your DVD player is dumb^H^H^H^H not perfect and is deinterlacing your already-progressive content.

[speedyrazor]

Found this one, would anyone recommend?

Sharpen(0.5, 0) #pre-sharpen horizontally to better keep hor. details
BlackmanResize(720, 576, taps=4) #for AviSynth versions before 2.58 use Spline36Resize
Blur(0, 0.6).Sharpen(0, 0.4) #mild vertical low-pass

[Groucho2004]

I see them after encoding and watching on the DVD.
So, looking at the script in VirtualDub does not exhibit this behaviour?

Tell us about your encoding process.
What's the target format?
Which encoder?
What do you use to multiplex?

[pandy]

Crude but relatively good results approach to AA in ffmpeg xbr=2,scale=720:-1 - try http://forum.doom9.org/showthread.php?t=164206

[speedyrazor]

So, looking at the script in VirtualDub does not exhibit this behaviour?

Tell us about your encoding process.
What's the target format?
Which encoder?
What do you use to multiplex?

What's the target format? - DVD
Which encoder? - Cinemacraft
What do you use to multiplex? - Scenarist

[Groucho2004]

What's the target format? - DVD
Which encoder? - Cinemacraft
What do you use to multiplex? - Scenarist
Have you seen this with other PAL DVDs you created? Did you set all the correct options in CCE for PAL? And, this was already mentioned, does your player play back PAL properly? Does it have jaggies when you play the DVD on a computer?

You'll have to give more information if you want help.

[kolak]

What's the target format? - DVD
Which encoder? - Cinemacraft
What do you use to multiplex? - Scenarist

Do you mean it flickers on edges?

Your SD master is probably to sharp, so it will flicker on TVs.

Add this to your script:

Blur(0.5,1.0).Sharpen(0.3, 0.3)

Encode with progressive flag.

[TheSkiller]

kolak is right, without any low-pass the video is probably too detailed vertically to run through a (potentially) interlaced playback chain without provoking jaggies.


Found this one, would anyone recommend?Yes, I recommend, I'm the one who wrote that some time ago. :p

[speedyrazor]

kolak is right, without any low-pass the video is probably too detailed vertically to run through a (potentially) interlaced playback chain without provoking jaggies.


Yes, I recommend, I'm the one who wrote that some time ago. :p

Any update on this script?