Metadata Settings

With the release of version 1.25 of Littlstar VR Cinema on the PSVR, render settings such as video type, layout, and frame packing can now all be changed on the fly within the app itself. This means that users no longer have to worry about the filename to tell the player how to render the video. Metadata files are currently mapped to the filename itself, meaning that if you change the filename after setting the metadata, those changes will not be reflected. If you change the filename, the metadata for the video will have to be set again. In the future, metadata files will be able to adapt to filename changes.

NOTE: As of now, it is not recommended to edit these metadata files. In the future, they will be more versatile and allow for the editing of the video's title, description, and thumbnail.

Content Type

App Setting	Json Descriptor	Description
FF	FF	The video is a fixed frame, non-spherical video.
180	Spherical_180	The video is a spherical 180 degree video.
360	Spherical_360	The video is a spherical 360 degree video.

Content Type will default to FF if no type is provided.

Content Layout

App Setting	Json Descriptor	Description
2D	Mono	The video is a 2D, monoscopic video.
OU/TB	OU_TB	The video's frames are vertically aligned.
LR/SBS	LR_SBS	The video's frame are horizontally aligned.

Content Layout will default to 2D if no layout is provided.

Frame Packing

This feature is typically reserved for 3D FF videos. For more information, visit this link.

App Setting	Json Descriptor	Description
HALF	HR	The frame's resolution is halved to ensure the full stereoscopic image fits into a normally-sized 2D frame.
FULL	FR	The two stereoscopic images are merged into a single frame, double the size of a 2D video's frame.

If the video is a 3D FF video, the frame packing method will default to HALF resolution. Otherwise, it will be FULL.

Metadata File Specification

The metadata file uses a .json format.

Note: This specification is under development and may change.

Elements

Field	Description	Type	Values
title	The name of the item	string	Any
description	The description of the item	string	Any
duration	Total running time of video in seconds	float	Any
ls:content-type	The content type of the item	string	"FF", "Spherical_180", "Spherical_360"
ls:content-layout	The content layout of the item	string	"Mono", "OU_TB", "LR_SBS"
ls:frame-packing	The frame packing of the item	string	"NotAvailable", "HR", "FR"

Example

{
 "title":"Test Video",
 "description":"A video for testing",
 "duration":135.7,
 "ls:content-type":"Spherical_180",
 "ls:content-layout":"LR_SBS",
 "ls:frame-packing":"NotAvailable"
}