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This standard specifies extensions to the VC-5 Elementary Bitstream defined in SMPTE ST 2073-1 for representing RGB(A) images, YCC(A) images without color difference component sub-sampling, and Color Filter Array (CFA) images including Bayer image formats. This standard specifies the default color space for RGB and YC1C2 color values.
This standard extends SMPTE ST 2073-1 by adding new parameters and chunk elements:The ImageFormat parameter specifies the type of image: RGB(A), YCC(A), CFA, or Bayer;The PatternWidth, PatternHeight, and ComponentsPerSample parameters specify the structure of CFA images, including Bayer images;The MaxBitsPerComponent parameter specifies an upper bound on the number of bits needed to represent all values in the component arrays present in the bitstream;The VendorSpecificData chunk element allows private data to be embedded in a VC-5 bitstream;The InverseTransform, InverseTransform16, and InversePermutation chunk elements specify how to transform and reorder decoded component arrays into the same color space and order as originally presented to the encoder;The UniqueImageIdentifier chunk element specifies the image sequence and position within the sequence of an image represented by a VC-5 bitstream.This standard extends SMPTE ST 2073-1 by defining three stages for transforming decoded component arrays into images: inverse component transform, inverse component permutation, and image repacking process.
This standard extends SMPTE ST 2073-1 to specify levels of performance for decoder implementations.