用來備份，方便自己使用，需要的拿去
直接上代碼，自己看著辦?? 也可以選擇去GitHub下載?ZQAudioLengthTool
ZQAudioLengthTool.h
#import@interface ZQAudioLengthTool : NSObject
+ (NSUInteger)durationWithVideo:(NSURL *)videoUrl;
@end
ZQAudioLengthTool.m
#import "ZQAudioLengthTool.h"
@implementation ZQAudioLengthTool
+ (NSUInteger)durationWithVideo:(NSURL *)videoUrl
{
AVURLAsset*audioAsset=[AVURLAsset URLAssetWithURL:videoUrl options:nil];
CMTime audioDuration=audioAsset.duration;
float audioDurationSeconds=CMTimeGetSeconds(audioDuration);
if (audioDurationSeconds>0) {
NSUInteger interValue = (audioDurationSeconds *10+5)/10;
return interValue;
}
return 0;
}
@end
