AVCaptureDevice拍照与短视频

最新推荐文章于 2024-11-26 19:44:51 发布

HelloWlrold

最新推荐文章于 2024-11-26 19:44:51 发布

阅读量9.3k

点赞数

分类专栏： OC 文章标签： ios

本文链接：https://blog.youkuaiyun.com/u013886407/article/details/72176876

版权

OC 专栏收录该内容

43 篇文章

订阅专栏

这篇博客介绍了如何利用AVCaptureDevice在iOS应用中实现实时拍照和录制短视频的功能。通过设置AVCaptureStillImageOutput和输出设置，将设备输入和输出添加到捕获会话，并捕获静止图像。当视频连接可用时，获取JPEG格式的图像数据并转化为UIImage显示。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

UIControlEventTouchDown];

[self.takeButton addTarget:self action:@selector(endAction:) forControlEvents:UIControlEventTouchUpInside];

#pragma mark 视频时间少于10s松开发送
-(void)endAction:(UIButton *)sender
{

    AVCaptureStillImageOutput *stillImageOutput = [[AVCaptureStillImageOutput alloc]init];
    NSDictionary *outputSettings = [[NSDictionary alloc] initWithObjectsAndKeys:AVVideoCodecJPEG, AVVideoCodecKey, nil];

    [stillImageOutput setOutputSettings:outputSettings];



    if ([self.captureSession canAddInput:self.captureDeviceInput]) {

        [self.captureSession addInput:self.captureDeviceInput];

    }



    if ([self.captureSession canAddOutput:stillImageOutput]) {

        [self.captureSession addOutput:stillImageOutput];

    }

    AVCaptureConnection *videoConnection = [stillImageOutput connectionWithMediaType:AVMediaTypeVideo];

    if (!videoConnection) {

        return;

    }
    [stillImageOutput captureStillImageAsynchronouslyFromConnection:videoConnection completionHandler:^(CMSampleBufferRef imageDataSampleBuffer, NSError *error) {

        if (imageDataSampleBuffer == NULL) {

            return;

        }



        NSData *imageData = [AVCaptureStillImageOutput jpegStillImageNSDataRepresentation:imageDataSampleBuffer];

        UIImage *image = [UIImage imageWithData:imageData];

        NSLog(@"image size = %@", NSStringFromCGSize(image.size));



        UIImageView *imageV = [[UIImageView alloc]initWithFrame:(CGRectMake(100, 100, 200, 400))];
        imageV.image = image;
        imageV.backgroundColor = [UIColor lightGrayColor];
        [self.view addSubview:imageV];

    }];
}