awand wrote:Just one thing. I mostly work with 24fps and 25fps films. In the script I see that it's made for 16.666 and 18.75fps. If I want to render the final output file to Ie. 24fps or 25fps, what do I do then?
Good morning Andreas,
The script can change the input to any play speed and convert it to any frame rate. I have mentioned 16,666 and 18,75 because these are the most common play speeds for super-8.
A few examples:
Important! Assumed that the input is progressive and no duplicate frames!
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1) Super-8 film original shot at 18fps, convert to standard PAL 25fps:
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play_speed= 18.75
numerator= 25
denumerator= 1
2) Super-8 film original shot at 24fps, convert to standard PAL 25fps:
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play_speed= 24
numerator= 25
denumerator= 1
If you want the output to be 24fps, then change numerator=24
3) Creating slow motion, the input can have any play speed, covert to standard PAL 25fps:
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play_speed= 6
numerator= 25
denumerator= 1
This will work remarkable good if the motion on the original is not to fast.
It will fail on frames with heavy motion blur.
4) Super-8 film original shot at 18fps, convert to standard NTSC 29,97fps:
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play_speed= 18
numerator= 30000
denumerator= 1001
If you do not want interpolation, set play_speed and numerator to the same value.
5) Super-8 film original shot at 18fps, no conversion:
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play_speed= 18
numerator= 18
denumerator= 1
The output will be 18fps progressive. If you want frame rate conversion but not with interpolation then you must apply ChangeFPS(whatever you want) on the output. This will add duplicate frames.
Fred.
