import <Photos/Photos.h>

• (void)getVideoData {
  PHFetchResult<PHAssetCollection *> *sysVideos = [PHAssetCollection fetchAssetCollectionsWithType:PHAssetCollectionTypeSmartAlbum subtype:PHAssetCollectionSubtypeSmartAlbumVideos options:nil];

  for (PHAssetCollection *collection in sysVideos) {
  MTFolderInfoModel *model = [[MTFolderInfoModel alloc] init];
  model.isVideo = YES;
  model.collection = collection;

   if (model.collectionNumber == 0) {
       break;
   }
   NSLog(@"videoCount-----%ld----",model.collectionNumber);
   for (NSInteger j = 0; j < model.fillArr.count; j++) {
       MTFolderFileInfoModel *fileModel = model.fillArr[j];
       PHAsset *asset = fileModel.asset;
       //直接获取视频信息
       PHImageManager *imageManager = [PHImageManager defaultManager];
       PHVideoRequestOptions *options = [[PHVideoRequestOptions alloc] init];
       options.version = PHImageRequestOptionsVersionCurrent;
       options.networkAccessAllowed = YES;
       options.deliveryMode = PHImageRequestOptionsDeliveryModeHighQualityFormat;
       [imageManager requestAVAssetForVideo:asset options:options resultHandler:^(AVAsset * _Nullable asset, AVAudioMix * _Nullable audioMix, NSDictionary * _Nullable info) {
           if ([asset isKindOfClass:[AVURLAsset class]]) {
               AVURLAsset* urlAsset = (AVURLAsset*)asset;
               NSNumber *size;
               [urlAsset.URL getResourceValue:&size forKey:NSURLFileSizeKey error:nil];
               
               //和运行内存有关？超过1G获取不到
               NSData *videoData = [NSData dataWithContentsOfURL:urlAsset.URL?urlAsset.URL:[NSURL URLWithString:@""] options:NSDataReadingMappedIfSafe error:nil];
               //---尝试获取数据---
  

// NSData *videoDd = [NSData dataWithContentsOfFile:urlAsset.URL.absoluteString];
NSLog(@"path-22---%@----size----%ld----length----%ld----",urlAsset.URL.absoluteString,(long)size.integerValue,videoData.length);
//---尝试获取数据---

               if (videoData.length == 0) {
                   NSNumber *size;
                   [urlAsset.URL getResourceValue:&size forKey:NSURLFileSizeKey error:nil];
                   
               }

// NSFileManager* fileManager = [NSFileManager defaultManager];
//
// if ([fileManager fileExistsAtPath:@"private/var/mobile/Media/DCIM/105APPLE/IMG_5924.MOV"]) {
// NSLog(@"文件存在读取文件~");
// NSData* readData = [fileManager contentsAtPath:@"/private/var/mobile/Media/DCIM/105APPLE/IMG_5924.MOV"];
// NSLog(@"path-CC---%@----size----%ld----length----%ld----",urlAsset.URL.absoluteString,(long)size.integerValue,readData.length);
// }
}
}];
}
}
}