iCloud 云共享视频处理 PHAsset对象中获取视频数据

iCloud 云共享视频处理

• (void)getVideoFromPHAsset:(PHAsset *)asset Complete:(void(^)(NSData *data,NSString *fileName))result{
  NSArray * assetResources = [PHAssetResource assetResourcesForAsset: asset];
  PHAssetResource *resource;
  for (PHAssetResource * assetRes in assetResources) {
  if (assetRes.type == PHAssetResourceTypePairedVideo || assetRes.type == PHAssetResourceTypeVideo) {
  resource = assetRes;
  }
  }
  NSString * fileName = @"tempAssetVideo.mov";
  if (resource.originalFilename) {
  fileName = resource.originalFilename;
  }
  if (asset.mediaType == PHAssetMediaTypeVideo || asset.mediaSubtypes == PHAssetMediaSubtypePhotoLive) {
  PHAssetResourceRequestOptions * options = [[PHAssetResourceRequestOptions alloc] init];
  options.networkAccessAllowed = YES;
  options.progressHandler = ^(double progress) {
  NSLog(@"%f",progress);
  };
  NSString *PATH_MOVIE_FILE = [NSTemporaryDirectory() stringByAppendingPathComponent: fileName];
  [[NSFileManager defaultManager] removeItemAtPath: PATH_MOVIE_FILE error: nil];
  [[PHAssetResourceManager defaultManager] writeDataForAssetResource: resource toFile: [NSURL fileURLWithPath: PATH_MOVIE_FILE] options: options completionHandler: ^(NSError * _Nullable error) {
  NSLog(@"%@",error);
  if (error) {
  [HelpUtil showMessage:@"iCloud云共享视频处理失败" dismissAuto:YES inView:MainWindow];
  result(nil, nil);
  } else {
  NSData *data = [NSData dataWithContentsOfURL: [NSURL fileURLWithPath: PATH_MOVIE_FILE]];
  result(data, fileName);
  }
  }];
  } else {
  result(nil, nil);
  }
  }