我想在我的uiimageview for iphone中显示来自网址的视频的视频图像 [英] I want to display a videothumbnail image of a video from url in my uiimageview for iphone

问题描述

是否可以获取视频的第一个图像帧并在uiimageview中显示它。我的视频保存在服务器中。我需要调用网址来播放视频

Is it possible to get the first image frame of a video and display it in uiimageview . My video is saved in the server. i need to call the url to play the video

推荐答案

我用这种方法做同样的事情

I use this method to do the same

/**
 *  This method retunrs a thumbnail of a Video file
 */

+ (UIImage *)generateThumbnailIconForVideoFileWith:(NSURL *)contentURL WithSize:(CGSize)size
{
    UIImage *theImage = nil;
    AVURLAsset *asset = [[AVURLAsset alloc] initWithURL:contentURL options:nil];
    AVAssetImageGenerator *generator = [[AVAssetImageGenerator alloc] initWithAsset:asset];
    generator.maximumSize=size;
    generator.appliesPreferredTrackTransform = YES;
    NSError *err = NULL;
    CMTime time = CMTimeMake(100,100); //change whatever you want here.
    CGImageRef imgRef = [generator copyCGImageAtTime:time actualTime:NULL error:&err];
    theImage = [[UIImage alloc] initWithCGImage:imgRef] ;
    CGImageRelease(imgRef);
    return theImage;
}

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