如何通过iPhone中的MPMediaPlayerController播放视频截图？ [英] How to take a screenshot from an video playing through MPMediaPlayerController in iPhone?

问题描述

有人可以帮助我吗？我想从通过MPMediaPlayerController播放的视频中获取屏幕截图。我到目前为止尝试的是： -

Can anybody help me in this? I want to get an screenshot from an video playing through MPMediaPlayerController. What i have tried so far is:-

-(void)viewDidLoad
{
NSURL *tempFilePathURL = [NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"LMFao" ofType:@"mp4"]];
player = [[MPMoviePlayerController alloc] initWithContentURL:tempFilePathURL];
[player setControlStyle:MPMovieControlStyleFullscreen];
//Place it in subview, else it won’t work
player.view.frame = CGRectMake(0, 0, 320, 400);
[self.view addSubview:player.view];
}

-(IBAction)screenshot
{
CGRect rect = [player.view bounds];
UIGraphicsBeginImageContext(rect.size);
CGContextRef context = UIGraphicsGetCurrentContext();
[player.view.layer renderInContext:context];   
image = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();

imgView = [[UIImageView alloc] initWithFrame:CGRectMake(150, 150, 100, 100)];
[imgView setImage:image];
imgView.layer.borderWidth = 2.0;
[self.view addSubview:imgView];
}

我现在得到的是： -

And what i ve got now is this:-

现在发生的事情是我的播放器的按钮被截取在ScreenShot但我的视频图像没有得到。我正在使用这种上下文方法来捕捉我的图像，因为
i在我的视频上有一个叠加，使用缩略图方法我无法使用叠加功能捕捉视频，但我希望通过叠加功能获取视频图像。

what is happening now is my player's button are getting captured in ScreenShot but my video's image is not been getting.I'm using this context method to capture my image because i have an overlay on my video,using thumbnail method i cant capture video with overlay but i want to get video's image with overlay.

编辑：
我想要的是获取截图此视频和图纸叠加，如此图片所示

what i want is getting screenshot of both this video and drawing overlay as shown in this image

但是我得到的是一种方法，我只得到视频没有叠加在我的屏幕截图中，方法是缩略图方法，我正在进行缩略图，由MPMoviePlayerController和第二种方法我只得到在ma截图中不覆盖视频，那个方法是上下文方法。我得到rect的上下文。现在我认为解决方案可能是ki结合这两个图像。所以通过给出建议帮助我合并图像对我有用吗？

But what i m getting is by one method i got only video not overlay in my screenshot that method is thumbnail method,i was doing thumbnailing in that which is given by MPMoviePlayerController and by second method i m getting only overlay not an video in ma screenshot,that method is context method.i'm getting context of rect.Now i thought solution for this may be is k i combine both these images.So help me out by giving suggestion is merging images will work for me or not???

请帮忙。谢谢：）

推荐答案

你可以合并两张图片从这个方面来看。请看下面的代码..

U can merge two image from this way.Please have an look from the below code..

- (UIImage*) maskImage:(UIImage *)image withMask:(UIImage *)maskImage {
    MaskView=[[UIView alloc] init];
    UIImageView *image1=[[UIImageView alloc]init];
    UIImageView *image2=[[UIImageView alloc]init];
    MaskView.frame=CGRectMake(0, 0,500,500);    
    image1.frame=CGRectMake(0,0,160, 160);  
    image2.frame=CGRectMake(60,54,40,40);
    image1.image=image;
    image2.image=maskImage;
    [MaskView addSubview:image1];
    [MaskView addSubview:image2];   

    UIGraphicsBeginImageContext(CGSizeMake(160,160));

    [MaskView.layer renderInContext:UIGraphicsGetCurrentContext()];
    UIImage *finishedPic = UIGraphicsGetImageFromCurrentImageContext(); 

    return finishedPic;
}

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