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Ensure TIFF output bitdepth option is limited to 1, 2 or 4

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Lovell Fuller
2026-01-23 21:29:40 +00:00
parent ef77388a73
commit ed6b7384d0
7 changed files with 11 additions and 10 deletions
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2
lib/constructor.js
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@@ -366,7 +366,7 @@ const Sharp = function (input, options) {
tiffPredictor: 'horizontal',
tiffPyramid: false,
tiffMiniswhite: false,
tiffBitdepth: 8,
tiffBitdepth: 0,
tiffTile: false,
tiffTileHeight: 256,
tiffTileWidth: 256,

4
lib/index.d.ts vendored
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@@ -1479,8 +1479,8 @@ declare namespace sharp {
xres?: number | undefined;
/** Vertical resolution in pixels/mm (optional, default 1.0) */
yres?: number | undefined;
/** Reduce bitdepth to 1, 2 or 4 bit (optional, default 8) */
bitdepth?: 1 | 2 | 4 | 8 | undefined;
/** Reduce bitdepth to 1, 2 or 4 bit (optional) */
bitdepth?: 1 | 2 | 4 | undefined;
/** Write 1-bit images as miniswhite (optional, default false) */
miniswhite?: boolean | undefined;
/** Resolution unit options: inch, cm (optional, default 'inch') */

6
lib/output.js
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@@ -1055,7 +1055,7 @@ function trySetAnimationOptions (source, target) {
* @param {number} [options.xres=1.0] - horizontal resolution in pixels/mm
* @param {number} [options.yres=1.0] - vertical resolution in pixels/mm
* @param {string} [options.resolutionUnit='inch'] - resolution unit options: inch, cm
* @param {number} [options.bitdepth=8] - reduce bitdepth to 1, 2 or 4 bit
* @param {number} [options.bitdepth=0] - reduce bitdepth to 1, 2 or 4 bit
* @param {boolean} [options.miniswhite=false] - write 1-bit images as miniswhite
* @returns {Sharp}
* @throws {Error} Invalid options
@@ -1070,10 +1070,10 @@ function tiff (options) {
}
}
if (is.defined(options.bitdepth)) {
if (is.integer(options.bitdepth) && is.inArray(options.bitdepth, [1, 2, 4, 8])) {
if (is.integer(options.bitdepth) && is.inArray(options.bitdepth, [1, 2, 4])) {
this.options.tiffBitdepth = options.bitdepth;
} else {
throw is.invalidParameterError('bitdepth', '1, 2, 4 or 8', options.bitdepth);
throw is.invalidParameterError('bitdepth', '1, 2 or 4', options.bitdepth);
}
}
// tiling