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Work item:
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H.273 (V3)
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Subject/title:
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Coding-independent code points for video signal type identification
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Status:
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Approved on 2023-09-29
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Approval process:
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AAP
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Type of work item:
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Recommendation
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Version:
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Rev.
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Equivalent number:
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ISO/IEC 23091-2 (Twin)
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Timing:
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-
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Liaison:
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ISO/IEC JTC1/SC29 WG5
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Supporting members:
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-
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Summary:
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This revised Rec. ITU-T H.273 adds the specification of code point identifiers for YCgCo-R colour representation with equal luma and chroma bit depths and for the colour representation specified in SMPTE ST 2128. The new code points for YCgCo-R are referred to as YCgCo-Re and YCgCo-Ro, where the number of bits added to a source RGB bit depth is 2 (i.e., even) and 1 (i.e., odd), respectively. SMPTE ST 2128 specifies a colour representation referred to as IPT-PQ-C2
This Recommendation was developed jointly with ISO/IEC JTC 1, Information technology, Subcommittee SC 29, Coding of audio, picture, multimedia and hypermedia information, and Rec. ITU-T H.273 is maintained as technically aligned twin text with ISO/IEC 23091-2. The changes specified in this version correspond to the technical content of a not-yet-published future (third) edition of ISO/IEC 23091-2.
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Comment:
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-
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Reference(s):
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Historic references:
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Contact(s):
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| ITU-T A.5 justification(s): |
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First registration in the WP:
2022-12-06 15:18:25
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Last update:
2023-10-16 09:45:38
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