M1dn1ght N1nj4
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sparkguygc Posted at 2017-10-25 13:29
I think what they're saying is, squeezing a 30fps (29.97 actually) video down to 25fps changes the speed of the video in that you might actually notice a slow motion effect....
If the editor could drop 5 frames, that would be better? which frames does it drop? every 5th/6th one?
So not so simple... I guess.
In order to strech 25 frames to fit in a previous 30 frame span, you would have to interpolate almost every frame to fit the fractional frame positions required to meet the 25 fps.
Take 1", and every 1/4" make a hash mark. Now, starting at 0, same as with the 1" start point, make a hash mark every 1/5". Notice that NONE of the hash marks between the two end up on the same point.
Same idea with the conversion from 30 to 25. A couple points will line up, but the rest would have to be interpolated from the adjacent frames in the 30fps set to make a frame that lines up on the 25fps set.
That's what some of the best video editors do when converting framerates. It's hard, and not necessarily a good look, but there isn't much you can do about it.
And the same goes for converting from 25 to 30. You would have to make up new frames for everything, as their frames wouldn't land on the same points when compressed to make room for 30 frames instead of 25.
It's not nearly as easy as it sounds. And just saying "give us 25fps" doesn't help. There is a lot more that goes into the process in the background that would have to be changed than you realize.
Unfortunately, as good as my vision is, 25fps is just choppy as all get out, and absolutely SUCKS to look at. It always looks like a 15 year old computer trying to play a 4k digital video file, while simultaneously running 2 virus scanners at the same time. Yuck. 30fps is much more watchable, with much less stutter, and a more natural look. I still prefer 60fps when I have the right equipment to watch it on. My laptop is 75hz, which is absolutely awesome. And the TV in my office is 144hz.
I'm just saying, 25fps is like a floppy disk. It's outdated, and needs to be replaced with something newer. For those calling it the "cinematic look", I call it the "cinecrapic look". It's aweful.
Just my 2 cents. |
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