带范围滑块的IOS trim视频

我正在使用范围滑块来修剪跑步视频。但我无法在特定时间停止视频。以下是我正在使用的代码：

- (void)videoRange:(SAVideoRangeSlider *)videoRange didChangeLeftPosition:   (CGFloat)leftPosition rightPosition:(CGFloat)rightPosition
{
    self.startTime = leftPosition;
    self.stopTime = rightPosition;
    [self.movieController stop];

    MPMoviePlayerController *player = self.movieController;
    [player stop];
    [player setCurrentPlaybackTime:self.startTime];
    [player setEndPlaybackTime:self.stopTime];
    [player play];

}  

setCurrentPlaybackTime正在工作，但“setEndPlaybackTime”不工作。 请帮助我推进我的项目工作。 谢谢

---

Rohan

我记不起我在哪里买的测距滑块，但这一个可能更好

我有一个可以很容易地给你一系列的值。下面是一些代码。最小值表示第一个滑块值，最大值表示第二个滑块值

h

m

---

我希望这有点帮助。你所需要做的就是把这些碎片拼在一起。您可以从这里获得SVProgress:

我正在从事完全相同的项目。

AVAssetExportSession *exportSession;
float max;
float min;

- (void)trimVideo:(NSString *)outputURL assetObject:(AVAsset *)asset
{

@try
{
    exportSession = [[AVAssetExportSession alloc]initWithAsset:asset presetName:AVAssetExportPresetHighestQuality];

    exportSession.outputURL = [NSURL fileURLWithPath:outputURL];

    exportSession.outputFileType = AVFileTypeQuickTimeMovie;

    CMTime start = CMTimeMakeWithSeconds(min, 1);

    CMTime duration = CMTimeMakeWithSeconds((max - min), 1);

    CMTimeRange range = CMTimeRangeMake(start, duration);

    exportSession.timeRange = range;

    exportSession.outputFileType = AVFileTypeQuickTimeMovie;

    [self checkExportSessionStatus:exportSession];

    exportSession = nil;

}
@catch (NSException * e)
{
    NSLog(@"Exception Name:%@ Reason:%@",[e name],[e reason]);
}
}

- (void)checkExportSessionStatus:(AVAssetExportSession *)exportSession
{


[exportSession exportAsynchronouslyWithCompletionHandler:^(void)
 {

     switch ([exportSession status])
     {
         case AVAssetExportSessionStatusCompleted:
         {

                 [[[UIAlertView alloc] initWithTitle:@"Video Trimmed"
                                             message:@"Your trimmed video has been sent to your finished videos."
                                            delegate:nil
                                   cancelButtonTitle:@"Ok"
                                   otherButtonTitles:nil] show];
                 // dismiss progress bar or i use the SVProgress framework [SVProgressHUD dismiss];
                  // you can save it here                 
             break;
         }
         case AVAssetExportSessionStatusFailed:
         {
             NSLog(@"Error in exporting");
             [[[UIAlertView alloc] initWithTitle:@"Export fail"
                                         message:nil
                                        delegate:nil
                               cancelButtonTitle:@"Ok"
                               otherButtonTitles:nil] show];
         }
             break;

         default:
         {
             break;
         }

     }
 }];
 }