bobo1on1 Wrote:Well, you won't know, so any pal dvd will play at 24 fps, but only if your refreshrate is a multiple of 24 hertz, set it to a multiple of 25 hertz and it will play at 25 fps.
You can also adjust the maximum speed change, you can set it to 0% if you want, but remember that the refreshrate and fps are both rounded, so 23.976 fps will be treated as 24 fps and 59.94 hertz will be treated as 60 hertz.
Basically, this means that, it doesn't matter if the DVD is 24fps or 25fps, as long as I have the "adjust refresh rate" option enabled, my DVDs will all playback at the proper refresh rate?
But this still leaves me to the same question... What if, one of these PAL DVDs (25fps) were actually converted from 24fps? There's no way to tell that right? So, if you don't know, the movie is 25fps and the refresh rate is 25Hz, the work you are doing won't do anything to this specific playback, right?
bobo1on1 Wrote:The problem with playing video on a computer is that the system clock is used to play the video at the correct speed, because of several reasons, this clock as an awful lot of jitter and is also slightly off from the videoclock, thus causing jerky playback.
What I did is sync the playback to the videoclock, so now the audio has to handle all the jitter (which it can do just fine), so providing your computer is fast enough (which it is) you get perfectly smooth playback.
So, what you are saying is that the system clock and video clock are not always in sync and your work is to fix that, correct?
And just so I get the whole picture here, by system clock you are referring to the clock speed of the CPU and by video clock, to the clock speed of the GPU or something else? If this is correct, well, I got say I never thought this could be such an issue for perfect smooth playback... I always thought the problem was only a matter of video fps and screen refresh rate...