RGB32 colorspace > Avisynth 2.5.8 MT vs 2.6.0

[zanaitoryoushi]

when using ConvertToRGB32 and you have avisynth 2.5.8 MT installed, is there a noticeable difference if you had version 2.6.0 installed instead? i just don't want to re-encode the same vid i just converted just because i forgot to change my avisynth version to 2.6.0...

anyway the only scripts i use are these..

video=Spline64Resize(video,480,270).Sharpen(0.6)
video=ConvertToYV12(video, matrix="rec709")
LoadPlugin("D:\Cybercafe\Desktop\Tools\AviSynth plugins\Unfilter.dll")
video=Tweak(video, sat=1.117, bright=-.6, cont=1.117)
video=UNfilter(video, -2, -2)


i use ConvertToRGB32(matrix="rec709") on the DirectShowSource code...
and i am using Ripbot264..

[manono]

when using ConvertToRGB32 and you have avisynth 2.5.8 MT installed, is there a noticeable difference if you had version 2.6.0 installed instead?

No.

i use ConvertToRGB32(matrix="rec709") on the DirectShowSource code...

Why? Is there some reason you feel the need to do a colorspace conversion? After all, you did say, anyway the only scripts i use are these.. and nothing in that script requires RGB32 (or any other kind of RGB).

[poisondeathray]

There is a very slight difference in the chroma upsampling (if you are a pixel peeper) - it's slightly slower in 2.6.x , and uses a different algorithm

You can read through this thread, specifically this post
http://forum.doom9.org/showthread.php?p=1472375#post1472375

The short summary is the shifts are slightly different (for the most part, slightly better, especially for interlaced RGB<=>YUV conversions)

But manono is right - there is NO GOOD WAY of doing RGB<=> YUV conversions, you always lose quality . There are pros/cons to each method, but since nothing in your script requires RGB, why lose quality for no reason ?

[manono]

Oh, there is a difference? And version2.6 is slightly better? Thanks for the info and for the correction. I don't guess that slight difference is noticeable under normal viewing circumstances, though? Never mind, I read the post to which you linked.