ios - 在 ios 中同时单击记录按钮时捕获图像

Question

当我单击录制按钮时，我正在使用 UIImagePicker 录制视频，我想用声音捕获帧并将其添加到一个数组中。请帮助我提前完成同样的工作。

Answer 1

尝试使用此示例代码在帧中录制视频

定制相册

编辑

    - (void)video:(NSString*)videoPath didFinishSavingWithError:(NSError*)error contextInfo:(void*)contextInfo {
        NSLog(@"%@",contextInfo);
        if (error) {
        }else{        
            NSURL *videoURl = [NSURL fileURLWithPath:videoPath];
            AVURLAsset *asset = [[AVURLAsset alloc] initWithURL:videoURl options:nil];
            AVAssetImageGenerator *generate = [[AVAssetImageGenerator alloc] initWithAsset:asset];
            generate.appliesPreferredTrackTransform = YES;
            NSError *err = NULL;
            CMTime time = CMTimeMake(1, 60);// heare you can set more then one image time
            CGImageRef imgRef = [generate copyCGImageAtTime:time actualTime:NULL error:&err];

            self.strUploadVideoURL = videoPath;
            self.strOriginalVideoURL = videoPath;

            UIImage *img = [[UIImage alloc] initWithCGImage:imgRef];
             // use this image to add in array.
        }
    }