How to addd user value to CMTimeMakeWithSecondValue

Question

Stop motion app

Trying to get frame duration (/.5)set by users value received from a stepper: self.stepperValue;

Original settings hard coded value of five frames a second

// 5 fps - taking 5 pictures will equal 1 second of video
frameDuration = CMTimeMakeWithSeconds(1./5., 90000);

Now trying with frames per second determined by stepper value, What I've tried so far (stepperValue is being read correctly)

 int x = self.stepperValue;
 frameDuration = CMTimeMakeWithSeconds(1./x, 90000);

This results on nothing being captured

second attempt

 float a = ([_stepperValue.text floatValue]);


// 5 fps - taking 5 pictures will equal 1 second of video
frameDuration = CMTimeMakeWithSeconds(1./a, 90000);

This results in a standard 5 frames per second value no matter value is entered form the stepper

[This post](http://stackoverflow.com/questions/4001755/trying-to-understand-cmtime-and-cmtimemake) may be helpful — jprofitt, Aug 18 '13 at 14:37
Already checked that out it explains about `CMTimeMakeWithSeconds` but not how to add float values, int values etc to the mix, unless ive missed something will re visit — JSA986, Aug 18 '13 at 14:39
Ok revisited the link thanks to your comment and float64 seems to be trick here. Thanks — JSA986, Aug 18 '13 at 14:46

score 0 · Answer 1 · answered Aug 18 '13 at 14:49

0

Fixed this

 Float64 seconds = ([_stepperValue.text floatValue]);

 frameDuration = CMTimeMakeWithSeconds(1./seconds, 90000);

answered Aug 18 '13 at 14:49

JSA986

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How to addd user value to CMTimeMakeWithSecondValue

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