标签：
视频分享
想实现iPhone手机拍摄一段视频，上传到云端分享给手机好友。
技术实现
视频压缩。iPhone拍摄的视频很大，几秒钟就几十兆文件了，需要做压缩，原来考虑用ffmpeg，安装起来比较复杂，网上也有很多教程，不过在通过appstore审核的时候有一定风险。
首先是点击开始录制的代码：
if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) { UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init]; imagePicker.videoQuality = UIImagePickerControllerQualityTypeIFrame960x540;//视频质量设置 imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera; imagePicker.delegate = self; imagePicker.allowsEditing = YES; imagePicker.videoMaximumDuration = 300.0f;//设置最长录制5分钟 imagePicker.mediaTypes = [NSArray arrayWithObject:@"public.movie"]; [self presentViewController:imagePicker animated:YES completion:^{ }]; }
录制完之后的回调方法：
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { NSURL *url = [info objectForKey:UIImagePickerControllerMediaURL]; NSLog(@"------%@",url); NSString *appDocumentPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject]; NSURL *uploadURL = [NSURL fileURLWithPath:[[appDocumentPath stringByAppendingPathComponent:[self dateString]] stringByAppendingString:@".mp4"]]; // Compress movie first [self convertVideoToLowQuailtyWithInputURL:url outputURL:uploadURL]; [self dismissViewControllerAnimated:YES completion:^{ }]; }
标签：
原文地址：http://www.cnblogs.com/zhangjiayi/p/5030035.html
