RFC 6386, "VP8 Data Format and Decoding Guide", November 2011

Errata ID: 7519
Status: Reported
Type: Technical
Publication Format(s) : TEXT
Reported By: Nico Weber
Date Reported: 2023-05-22

Section 9.3 says:

       a.  L(1), the mode of segment feature data
           (segment_feature_mode), can be absolute-value mode (0) or
           delta value mode (1).

It should say:

       a.  L(1), the mode of segment feature data
           (segment_feature_mode), can be delta value mode (0) or
           absolute-value mode (1).

Notes:

9.3 lists the meanings of the bits the wrong way round.

Section 19.2 has it the right way round:

"""
o segment_feature_mode indicates the feature data update mode, 0 for
delta and 1 for the absolute value
"""

That is, at the moment two sections in the spec directly contradict each other. Section 19.2 is right, section 9.3 is wrong from what I can tell.

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