在多個分區中分割視頻

Question

我正在開發目標C中的iOS應用程序。

根據我的要求，我想將視頻分成多個部分。

假設我有一個50秒的視頻，我想分成5份，每份10秒。

如果你們有任何想法，請指教我。

Answer 1

尼斯Question.The的解決方案是在這裏...在viewDidLoad方法

-(void)splitSecondVideo 
{ 
if (did<splitdivide){ 

AVURLAsset *asset = [AVURLAsset URLAssetWithURL:_videourl options:nil]; 

AVAssetExportSession *exportSession = [[AVAssetExportSession alloc]initWithAsset:asset presetName:AVAssetExportPresetHighestQuality]; 

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
NSString *documentsDirectory = [paths objectAtIndex:0]; 
NSString *myPathDocs; 
CMTime starttime; 
CMTime duration; 

    myPathDocs = [documentsDirectory stringByAppendingPathComponent:[NSString stringWithFormat:@"SplitFinalVideo%d.mov",did]]; 
    double endt=CMTimeGetSeconds([asset duration]); 
    NSLog(@"All Duration : %f",endt); 
    double divide=CMTimeGetSeconds([asset duration])/splitdivide; 
    NSLog(@"All Duration : %f",divide); 

    starttime = CMTimeMakeWithSeconds(divide*did, 1); 
    duration = CMTimeMakeWithSeconds(divide, 1); 

NSFileManager *fileManager=[[NSFileManager alloc]init]; 
NSError *error; 
if ([fileManager fileExistsAtPath:myPathDocs] == YES) { 
    [fileManager removeItemAtPath:myPathDocs error:&error]; 
} 

exportSession.outputURL = [NSURL fileURLWithPath:myPathDocs]; 
exportSession.shouldOptimizeForNetworkUse = YES; 
exportSession.outputFileType = AVFileTypeQuickTimeMovie; 
// Trim to half duration 

CMTimeRange secondrange = CMTimeRangeMake(starttime, duration); 

exportSession.timeRange = secondrange; 
[exportSession exportAsynchronouslyWithCompletionHandler:^(void) 
{ 
    [self exportDidFinish:exportSession]; 
    did++; 

    [self splitSecondVideo]; 

}]; 

}} 

- (void)exportDidFinish:(AVAssetExportSession*)session { 
if (session.status == AVAssetExportSessionStatusCompleted) { 
    NSURL *outputURL = session.outputURL; 
    NSLog(@"Before Exported"); 
    [self SaveVideoAtPathWithURL:outputURL]; 
}} 

其中做= 0.0。 & splitdivide是您想要創建視頻部分的值。在您的問題splitdivide = 5; 注意：確實&拆分均爲整數值。

希望這是有幫助的....享受...