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webp-container-spec.txt: move ChunkHeader to terminology

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this avoids presenting it in the description of a chunk where it could
appear it was defining an element of the diagram

Change-Id: I51b2c2a0dcecb4fc130711ad37c884a434920ecd
This commit is contained in:
James Zern
2022-08-01 18:58:02 -07:00
parent c9359332a3
commit bec2c88a11
1 changed files with 6 additions and 6 deletions
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12
doc/webp-container-spec.txt
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@@ -92,6 +92,12 @@ _1-based_
: An unsigned integer field storing values offset by `-1`. e.g., Such a field
would store value _25_ as _24_.
_ChunkHeader('ABCD')_
: This is used to describe the _FourCC_ and _Chunk Size_ header of individual
chunks, where 'ABCD' is the FourCC for the chunk. This element's size is 8
bytes.
RIFF File Format
----------------
@@ -125,12 +131,6 @@ Chunk Payload: _Chunk Size_ bytes
: The data payload. If _Chunk Size_ is odd, a single padding byte -- that
SHOULD be `0` -- is added.
_ChunkHeader('ABCD')_
: This is used to describe the _FourCC_ and _Chunk Size_ header of individual
chunks, where 'ABCD' is the FourCC for the chunk. This element's
size is 8 bytes.
**Note:** RIFF has a convention that all-uppercase chunk FourCCs are standard
chunks that apply to any RIFF file format, while FourCCs specific to a file
format are all lowercase. WebP does not follow this convention.