This informative roadmap describes the documents in the SMPTE 2073 suite

ST 2073-1:2017 Elementary Bitstream

SMPTE ST 2073-1 defines the compressed representation and decoding process for the VC-5 elementary bitstream. Any image or array of data that can be unpacked into component arrays can be represented by a VC-5 elementary bitstream.

RP 2073-2:2017 Conformance Specification

SMPTE RP 2073-2 specifies the criteria and procedures for testing the conformance of encoder and decoder implementations to the VC-5 standard and describes the test materials used for conformance testing. The test materials comprise a reference decoder to test bitstreams for compliance with the VC-5 standard and reference bitstreams to test implementations of a VC-5 decoder for compliance with the VC-5 standard.

ST 2073-3:2015 Image Formats

The VC-5 elementary bitstream defined in SMPTE ST 2073-1 does not specify the type of components that are represented in the bitstream.

SMPTE ST 2073-3 extends the elementary bitstream syntax with new elements for representing R′G′B′(A) images, Y′C′1C′2(A) images, without color difference component sub-sampling, and Color Filter Array (CFA) images including Bayer image formats.

ST 2073-4:2015 Subsampled Color Difference Components

SMPTE ST 2073-4 extends the Y'C'1C'2(A) image format defined in SMPTE ST 2073-3 to include subsampled color difference components, including 4:2:2, 4:2:0, 4:1:1, and 4:1:0 subsampling. An alpha channel is optional and can have the same resolution as the Y′ channel or the same resolution as the C'1 and C'2 channels.

ST 2073-5:2015 Layers

SMPTE ST 2073-5 extends the elementary bitstream syntax with new elements to support the representation of multiple images in a single VC-5 bitstream. Each of the individual images is called a layer. All layers present in the bitstream have the same width, height, number of channels, and image format. For example, a stereo pair can be represented as a single image in the bitstream with a layer for the left image and a layer for right image.

ST 2073-6:2015 Sections

SMPTE ST 2073-6 extends the elementary bitstream syntax with new elements to support sections that delineate contiguous portions of the bitstream. Sections subdivide the bitstream to enable advanced decoder features such as fast seeking within the bitstream, error detection and correction, multi-resolution decoding, and concurrent decoding.

ST 2073-10:2017 MXF – Mapping VC-5 Video Essence into the MXF Generic Container

SMPTE ST 2073-10 specifies the mapping of VC-5 image essence as a picture essence track of the MXF generic container in frame-wrapped, clip-wrapped, or custom-wrapped form. The standard includes the KLV coding, essence container label values, and compression label values, and also defines the subdescriptors for CDCI and Bayer images.