SMPTE ST 425-4 – Dual 3 Gb/s Serial Digital Interface for Stereoscopic Image Transport

This standard defines a means of transporting stereoscopic images (Left eye and Right eye images) using an interface consisting of two streams based on the SMPTE ST 425-1 data structures. The Left eye images are carried on one stream of the interface and the Right eye images are carried on the other stream.

The stereoscopic image formats to be transported using this standard are the 4:2:2 and 4:4:4 image formats enumerated in Table 1, where each image format is defined by SMPTE ST 274, SMPTE ST 296, SMPTE ST 2048-2, SMPTE ST 428-9 or SMPTE ST 428-19, has a payload capacity of nominally 3 Gb/s and can be transported by a single SMPTE ST 424 serial interface.

Audio and other associated ancillary data may also be transported. This standard also defines a payload identifier.

Mapping structures for the video essence and ancillary data shall be as defined in SMPTE ST 425-1 Level A or Level B-DL.

It is not necessary for implementations to include support for all formats defined in Table 1, nor is it a requirement to support both mapping modes to conform to this standard. Implementers should indicate supported formats and supported mapping modes in commercial publications.