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doc/webp-container-spec: avoid i.e. & e.g.

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Using 'that is' or 'for example' is recommended:
https://developers.google.com/style/abbreviations#dont-use

Change-Id: I25b45f5b41687dfbd25a0fbea4978d6bc8e44ad2
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James Zern 2023-05-26 18:56:24 +00:00
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doc/webp-container-spec.txt
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@ -24,21 +24,21 @@ WebP is an image format that uses either (i) the VP8 key frame encoding
to compress image data in a lossy way, or (ii) the WebP lossless encoding to compress image data in a lossy way, or (ii) the WebP lossless encoding
(and possibly other encodings in the future). These encoding schemes should (and possibly other encodings in the future). These encoding schemes should
make it more efficient than currently used formats. It is optimized for fast make it more efficient than currently used formats. It is optimized for fast
image transfer over the network (e.g., for websites). The WebP format has image transfer over the network (for example, for websites). The WebP format has
feature parity (color profile, metadata, animation, etc.) with other formats as feature parity (color profile, metadata, animation, etc.) with other formats as
well. This document describes the structure of a WebP file. well. This document describes the structure of a WebP file.
The WebP container (i.e., RIFF container for WebP) allows feature support over The WebP container (that is, the RIFF container for WebP) allows feature support
and above the basic use case of WebP (i.e., a file containing a single image over and above the basic use case of WebP (that is, a file containing a single
encoded as a VP8 key frame). The WebP container provides additional support image encoded as a VP8 key frame). The WebP container provides additional
for: support for:
* **Lossless compression.** An image can be losslessly compressed, using the * **Lossless compression.** An image can be losslessly compressed, using the
WebP Lossless Format. WebP Lossless Format.
* **Metadata.** An image may have metadata stored in Exif or XMP formats. * **Metadata.** An image may have metadata stored in Exif or XMP formats.
* **Transparency.** An image may have transparency, i.e., an alpha channel. * **Transparency.** An image may have transparency, that is, an alpha channel.
* **Color Profile.** An image may have an embedded ICC profile as described * **Color Profile.** An image may have an embedded ICC profile as described
by the [International Color Consortium][iccspec]. by the [International Color Consortium][iccspec].
@ -57,7 +57,7 @@ Bit numbering in chunk diagrams starts at `0` for the most significant bit
Terminology & Basics Terminology & Basics
-------------------- --------------------
A WebP file contains either a still image (i.e., an encoded matrix of pixels) A WebP file contains either a still image (that is, an encoded matrix of pixels)
or an [animation](#animation). Optionally, it can also contain transparency or an [animation](#animation). Optionally, it can also contain transparency
information, color profile and metadata. In case we need to refer only to the information, color profile and metadata. In case we need to refer only to the
matrix of pixels, we will call it the _canvas_ of the image. matrix of pixels, we will call it the _canvas_ of the image.
@ -89,8 +89,8 @@ _FourCC_
_1-based_ _1-based_
: An unsigned integer field storing values offset by `-1`. e.g., Such a field : An unsigned integer field storing values offset by `-1`, for example, such a
would store value _25_ as _24_. field would store value _25_ as _24_.
_ChunkHeader('ABCD')_ _ChunkHeader('ABCD')_
@ -553,7 +553,7 @@ Pre-processing (P): 2 bits
: These _informative_ bits are used to signal the pre-processing that has : These _informative_ bits are used to signal the pre-processing that has
been performed during compression. The decoder can use this information to been performed during compression. The decoder can use this information to
e.g. dither the values or smooth the gradients prior to display. for example, dither the values or smooth the gradients prior to display.
* `0`: No pre-processing. * `0`: No pre-processing.
* `1`: Level reduction. * `1`: Level reduction.