如何在 elcImagePickerController 中获取视频的 NSData？

Posted 2023-03-14

【中文标题】如何在 elcImagePickerController 中获取视频的 NSData？

【英文标题】：How to get NSData of video in elcImagePickerController?

【发布时间】：2016-09-08 10:39:13

【问题描述】：

我想将视频上传到服务器...并且正在使用 elcImagePickerController 来选择多个/单个视频

但是在

 - (void)elcImagePickerController:(ELCImagePickerController *)picker didFinishPickingMediaWithInfo:(NSArray *)info

方法没有获取 UIImagePickerControllerMediaURL 来获取数据..

那么如何获取视频数据发送到服务器呢？

这是我的代码

    if ([dict objectForKey:UIImagePickerControllerOriginalImage])
            UIImage* image=[dict objectForKey:UIImagePickerControllerOriginalImage];

            [images addObject:image];

            NSURL *imagePath = [dict objectForKey:UIImagePickerControllerReferenceURL];
            NSString *imageName = [imagePath lastPathComponent];
            [imgNames addObject:imageName];
            UIImageView *imageview = [[UIImageView alloc] initWithImage:image];
            [imageview setContentMode:UIViewContentModeScaleAspectFit];
            imageview.frame = workingFrame;

            [_scrollView addSubview:imageview];

            workingFrame.origin.x = workingFrame.origin.x + workingFrame.size.width;
         

【问题讨论】：

this post may help!!

否 :( 只能显示视频/图像但无法获取视频的 NSData...

***.com/questions/33189012/…

在 didFinishPickingMediaWithInfo 中没有得到 UIImagePickerControllerMediaURL ... 而是得到 UIImagePickerControllerReferenceURL ... @Larme

我建议使用原生UIImagePickerController。它有足够的方法来完成任何类型的任务，并且易于实现。无需使用第三方进行媒体采摘！！

【参考方案1】：

终于从这里得到了解决方案https://***.com/a/10799693/6011616

ALAssetsLibrary *assetLibrary=[[ALAssetsLibrary alloc] init];
[assetLibrary assetForURL:[NSURL URLWithString:videoLink] resultBlock:^(ALAsset *asset) 
ALAssetRepresentation *rep = [asset defaultRepresentation];
Byte *buffer = (Byte*)malloc(rep.size);
NSUInteger buffered = [rep getBytes:buffer fromOffset:0.0 length:rep.size error:nil];

NSData *data = [NSData dataWithBytesNoCopy:buffer length:buffered freeWhenDone:YES]; 
NSLog(@"%@",data); //this is what I was expecting