Summary

This Recommendation ITU-T H.262| International Standard ISO/IEC 13812-2 specifies coded representation of video data and the decoding process required to reconstruct pictures. It provides a generic video coding scheme which serves a wide range of applications, bit rates, picture resolutions and qualities. Its basic coding algorithm is a hybrid of motion compensated prediction and DCT. Pictures to be coded can be either interlaced or progressive. Necessary algorithmic elements are integrated into a single syntax, and a limited number of subsets are defined in terms of Profile (functionalities) and Level (parameters) to facilitate practical use of this generic video coding standard.

This third edition of this Recommendation | International Standard consists of Rec. ITU-T H.262 (1995) | ISO/IEC 13818‑2:1996, subsequently altered by four corrigenda and eleven amendments:

1.���� A first corrigendum adding a slice picture identifier, allowing an application to define default colour description parameters, removing a prohibition of field-structured DCT coding in progressive frames, clarifying ambiguity on restricted range of reconstructed motion vectors, clarifying ambiguity of VBV at boundaries of sequences, and making various minor corrections.

2.���� A second corrigendum altering the inverse discrete cosine transform requirements, altering temporal_reference for low delay, and making various minor corrections.

3.���� A first amendment providing a method of obtaining and registering copyright identifiers.

4.���� A second amendment defining a 4:2:2 profile.

5.���� A third amendment adding a camera parameters extension and a multi-view profile.

6.���� A fourth amendment adding an ITU-T extension.

7.���� A fifth amendment adding a high level to the 4:2:2 profile.

8.���� A sixth amendment reducing the upper bound for the number of lines per frame in the high level of all profiles from 1152 to 1088.

9.���� A third corrigendum clarifying the description of the handling of reserved extension data.

10.�� A seventh amendment providing an ability to send supplemental "content description data".

11.�� A fourth corrigendum clarifying and correcting the specification of aspects relating to inverse discrete cosine transform precision.

12.�� An eighth amendment updating and enhancing the specification of support for colour spaces.

13.�� A ninth amendment specifying an additional level to support the 1080@50p/60p video format.

14.�� A tenth amendment specifying a 'frame packing arrangement' signalling for stereoscopic 3D content.

15.�� An eleventh amendment adding the definition of a side-by-side frame packing arrangement with quincunx sampling.