IVTC success

[fmctm1sw]

A long time ago, I made mention of the fact that I could see telecine artifacts in my played back material. Anywhere there was a lot of up <-> down or left <-> right motion, I could see a flashing effect. I was immediately dismissed as confused (which may or may not actually be true ). When I went back to my original AVI, in the areas of this flickering, I could see a distinct pattern of 3 progressive frames, then two interlaced ones. I just figured encoders didn't handle these interlaced frames well (I don't blame them). I bought CCE basic a few weeks ago and decided to dabble back into IVTC. Previous attempts at IVTC resulted in jerky motion. This may well have been caused me doing something wrong. Anyway, I went back to the avisynth IVTC method and decimated to 24fps. Then used pulldown.exe to change the flag to 29.97. I authored to DVD and was amazed at how much better this worked. I literally couldn't believe my eyes. Very smooth. One question I have is what exactly does that pulldown.exe do? Does it tell my DVD player to telecine? Or does it fake my DVD player into thinking the video is 29.97? Whatever happened worked well. If you haven't at least tried an IVTC, I recommend you do.

[oldfart13]

I did this on an entire series I converted from DVD-MPEG to SVCD. The non interlaced and IVTC version looked so much better on pregressive scan TVs that it's all I use now, especially for film to video conversions...

[SLK001]

The 2:3 pulldown flag tells your DVD to telecine the video.

An American TV can only be fed 29.97fps video (almost all of them, that is, and NON-HDTV).

[SLK001]

Also, progressive video can be encoded at about 25% higher encode rates (and fill up the same space), so this contributes to a better quality picture.

[Xylob the Destroyer]

...An American TV can only be fed 29.97fps video (almost all of them, that is, and NON-HDTV).

then why do video game publishers for console games (PS2, X-BOX, GameCube) always like to brag that their games run at 60fps?

[junkmalle]

...An American TV can only be fed 29.97fps video (almost all of them, that is, and NON-HDTV).

then why do video game publishers for console games (PS2, X-BOX, GameCube) always like to brag that their games run at 60fps?

Actually, NTSC TV isn't 29.97 frames per second it's 59.94 fields per second. So 60 fps games will show a different picture for each field.

Note that 60fps is usually quoted as an average or nominal figure. Many places in a game may be much slower.

[SLK001]

Actually, NTSC TV isn't 29.97 frames per second it's 59.94 fields per second.

Yes, that's true.

[Xylob the Destroyer]

...Note that 60fps is usually quoted as an average or niminal figure. Many places in a game may be much slower.

especially in shooters when the shit hits the fan!