Select Videos By Its Folder Name MediaStore

Question

I am creating a video player app, and i done most of the parts but when i started implementing the folder part to show all videos present in a specific folder through MediaStore it gives me result like below i explained it. folderName - /storage/external_SD 20 videos in it.But it has only 5 videos in it, and rest is in the subFolders of this /storage/external_SD i.e, /storage/external_SD/DCIM/Camera it has 15 videos that means all videos are sumed up and result shown in /storage/external_SD only is 20. I want 5 videos from /storage/external_SD and rest from other like /storage/external_SD/DCIM/Camera. Thanks in advance suggest me something. code for selection :

String folder = "/storage/external_SD";
String selection = MediaStore.Video.Media.DATA + " like?";
String[] selectionArgs = new String[]{"%" + folder + "%"};
Cursor c = context.getContentResolver().query(uri, projection, selection, selectionArgs, sortOrder);