Getting Video Duration from ALAsset - objective-c

Question

Hi I'm new to objective C. I'm using AGImagePicker to pick images and video files from phone library and displaying them in GridView. but now I want to get duration of video file to display it with video thumbnail. I don't know how to get video duration from ALAsset. Anybody Please. Any type of answer would be appreciated.

Answer 1

1)To get the Media Duration with the Help of ALAssetPropertyDuration
double value = [[asset valueForProperty:ALAssetPropertyDuration] doubleValue]; //Find the Duraion
[cell.lblMediaLength setText:[self timeFormatted:value]];
2)Method that convert the Total seconds to Hour:min:sec
- (NSString *)timeFormatted:(double)totalSeconds
{
NSTimeInterval timeInterval = totalSeconds;
long seconds = lroundf(timeInterval); // Modulo (%) operator below needs int or long
int hour = 0;
int minute = seconds/60.0f;
int second = seconds % 60;
if (minute > 59) {
hour = minute/60;
minute = minute%60;
return [NSString stringWithFormat:#"%02d:%02d:%02d", hour, minute, second];
}
else{
return [NSString stringWithFormat:#"%02d:%02d", minute, second];
}
}
For Swift
func timeFormatted(totalSeconds: Float64) -> String {
let timeInterval: NSTimeInterval = totalSeconds
let seconds: Int = lround(timeInterval)
var hour: Int = 0
var minute: Int = Int(seconds/60)
let second: Int = seconds % 60
if minute > 59 {
hour = minute / 60
minute = minute % 60
return String(format: "%02d:%02d:%02d", hour, minute, second)
}
else {
return String(format: "%02d:%02d", minute, second)
}
}

Answer 2

If asset is an ALAsset:
NSNumber *number = [asset valueForProperty:ALAssetPropertyDuration];
This will return an NSNumber. If you want the value:
double value = [[asset valueForProperty:ALAssetPropertyDuration] doubleValue];

Answer 3

Here is how I get the duration.
AVAsset *testAsset = [AVAsset assetWithURL:url];
return testAsset.duration;