Opened 4 weeks ago

Last modified 4 weeks ago

#708 new defect

mismatch on BDPCM luma/chroma context indices between VTM7 and spec

Reported by: gordon Owned by:
Priority: minor Milestone:
Component: spec Version: VVC D7 vE
Keywords: Cc: ksuehring, bbross, XiangLi, fbossen, jvet@…


BDPCM uses a flag and direction for its activation for luma (intra_bdpcm_luma_flag and intra_bdpcm_luma_dir_flag) and for chroma (intra_bdpcm_chroma_flag and intra_bdpcm_chroma_dir_flag).

The spec indicates that there are separate contexts used for this signaling between luma and chroma, although in the software the same contexts are used for both.

The WD should remove the chroma-related contexts (tables 9-71 and 9-72), and indicate that the currently luma-related contexts are used for all (tables 9-64 and 9-65 -- with appropriate changes in the high level association table 9-48).

Change history (1)

comment:1 Changed 4 weeks ago by bbross

  • Version changed from VVC D7 vD to VVC D7 vE
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