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Add chromaSubsampling and isProgressive to metadata #1186

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Lovell Fuller
2018-10-02 17:11:25 +01:00
parent 60438ebfe5
commit 17f942c802
6 changed files with 96 additions and 0 deletions
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2
docs/api-input.md
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@@ -31,6 +31,8 @@ A Promises/A+ promise is returned when `callback` is not provided.
- `channels`: Number of bands e.g. `3` for sRGB, `4` for CMYK
- `depth`: Name of pixel depth format e.g. `uchar`, `char`, `ushort`, `float` [...][2]
- `density`: Number of pixels per inch (DPI), if present
- `chromaSubsampling`: String containing JPEG chroma subsampling, `4:2:0` or `4:4:4` for RGB, `4:2:0:4` or `4:4:4:4` for CMYK
- `isProgressive`: Boolean indicating whether the image is interlaced using a progressive scan
- `hasProfile`: Boolean indicating the presence of an embedded ICC profile
- `hasAlpha`: Boolean indicating the presence of an alpha transparency channel
- `orientation`: Number value of the EXIF Orientation header, if present

3
docs/changelog.md
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@@ -22,6 +22,9 @@ Requires libvips v8.7.0.
* Switch from custom trim operation to `vips_find_trim`.
[#914](https://github.com/lovell/sharp/issues/914)
* Add `chromaSubsampling` and `isProgressive` properties to `metadata` response.
[#1186](https://github.com/lovell/sharp/issues/1186)
* Drop Node 4 support.
[#1212](https://github.com/lovell/sharp/issues/1212)