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AHG15: On signalling of chroma QP tables
Abstract
This document proposes a signalling mechanism for chroma QP tables. It is suggested that the mechanism should be flexible to provide encoders the opportunity to optimize the table for SDR and HDR content. It is argued that the signalling mechanism should have support for signalling the tables separately for Cb and Cr components. The proposed mechanism signals the chroma QP table as a piece-wise linear function.
JVET-O0650 AHG15: On signalling of chroma QP tables [A. K. Ramasubramonian, G. Van der Auwera, D. Rusanovskyy, M. Karczewicz (Qualcomm)]
This contribution was discussed 4 July at 2100 (chaired by GJS).
JVET-O0186, JVET-O0298, JVET-O0433, JVET-O0562, and JVET-O0650 are all related.
This document proposes a signalling mechanism for chroma QP tables. It is suggested that the mechanism should be flexible to provide encoders the opportunity to optimize the table for SDR and HDR content. It is argued that the signalling mechanism should have support for signalling the tables separately for Cb and Cr components. The proposed mechanism signals the chroma QP table as a piece-wise linear function.
Decisions
This document proposes a signalling mechanism for chroma QP tables. It is suggested that the mechanism should be flexible to provide encoders the opportunity to optimize the table for SDR and HDR content. It is argued that the signalling mechanism should have support for signalling the tables separately for Cb and Cr components. The proposed mechanism signals the chroma QP table as a piece-wise linear function.
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