Add isPalette and bitsPerSample metadata, deprecate paletteBitDepth

test/unit/avif.js

@@ -34,6 +34,7 @@ describe('AVIF', () => {
       // Math.round(13.40625) = 13
       height: 13,
       isProgressive: false,
+      isPalette: false,
       space: 'srgb',
       width: 32
     });
@@ -55,6 +56,8 @@ describe('AVIF', () => {
       hasProfile: false,
       height: 26,
       isProgressive: false,
+      isPalette: false,
+      bitsPerSample: 8,
       pagePrimary: 0,
       pages: 1,
       space: 'srgb',
@@ -77,6 +80,8 @@ describe('AVIF', () => {
       hasProfile: false,
       height: 13,
       isProgressive: false,
+      isPalette: false,
+      bitsPerSample: 8,
       pagePrimary: 0,
       pages: 1,
       space: 'srgb',
@@ -100,6 +105,8 @@ describe('AVIF', () => {
       hasProfile: false,
       height: 300,
       isProgressive: false,
+      isPalette: false,
+      bitsPerSample: 8,
       pagePrimary: 0,
       pages: 1,
       space: 'srgb',
@@ -124,6 +131,8 @@ describe('AVIF', () => {
       hasProfile: false,
       height: 26,
       isProgressive: false,
+      isPalette: false,
+      bitsPerSample: 8,
       pagePrimary: 0,
       pages: 1,
       space: 'srgb',

test/unit/metadata.js

@@ -878,6 +878,8 @@ describe('Image metadata', function () {
       channels: 3,
       depth: 'uchar',
       isProgressive: false,
+      isPalette: false,
+      bitsPerSample: 8,
       pages: 1,
       pagePrimary: 0,
       compression: 'av1',

test/unit/png.js

@@ -146,6 +146,8 @@ describe('PNG', function () {
       density: 72,
       depth: 'uchar',
       isProgressive: false,
+      isPalette: true,
+      bitsPerSample: 8,
       paletteBitDepth: 8,
       hasProfile: false,
       hasAlpha: false
@@ -218,8 +220,10 @@ describe('PNG', function () {
       .png({ colours: 2, palette: false })
       .toBuffer();
 
-    const { channels, paletteBitDepth, size, space } = await sharp(data).metadata();
+    const { channels, isPalette, bitsPerSample, paletteBitDepth, size, space } = await sharp(data).metadata();
     assert.strictEqual(channels, 1);
+    assert.strictEqual(isPalette, false);
+    assert.strictEqual(bitsPerSample, 1);
     assert.strictEqual(paletteBitDepth, undefined);
     assert.strictEqual(size, 89);
     assert.strictEqual(space, 'b-w');