From a472aea025052720642b263e647feae0921ba794 Mon Sep 17 00:00:00 2001
From: Lovell Fuller <github@lovell.info>
Date: Sun, 20 Nov 2022 21:30:45 +0000
Subject: [PATCH] Ignore sequentialRead option for stats #3462

---
 docs/changelog.md  | 3 +++
 src/stats.cc       | 1 +
 test/unit/stats.js | 5 +++++
 3 files changed, 9 insertions(+)

diff --git a/docs/changelog.md b/docs/changelog.md
index 986b84b4..e69d779e 100644
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -15,6 +15,9 @@ Requires libvips v8.13.3
 * Improve `extractChannel` support for 16-bit output colourspaces.
   [#3453](https://github.com/lovell/sharp/issues/3453)
 
+* Ignore `sequentialRead` option when calculating image statistics.
+  [#3462](https://github.com/lovell/sharp/issues/3462)
+
 ### v0.31.2 - 4th November 2022
 
 * Upgrade to libvips v8.13.3 for upstream bug fixes.
diff --git a/src/stats.cc b/src/stats.cc
index 1d7942b1..5a6a3172 100644
--- a/src/stats.cc
+++ b/src/stats.cc
@@ -176,6 +176,7 @@ Napi::Value stats(const Napi::CallbackInfo& info) {
 
   // Input
   baton->input = sharp::CreateInputDescriptor(options.Get("input").As<Napi::Object>());
+  baton->input->access = VIPS_ACCESS_RANDOM;
 
   // Function to notify of libvips warnings
   Napi::Function debuglog = options.Get("debuglog").As<Napi::Function>();
diff --git a/test/unit/stats.js b/test/unit/stats.js
index 2a878cb2..fd611777 100644
--- a/test/unit/stats.js
+++ b/test/unit/stats.js
@@ -730,4 +730,9 @@ describe('Image Stats', function () {
       done();
     });
   });
+
+  it('Sequential read option is ignored', async () => {
+    const { isOpaque } = await sharp(fixtures.inputJpg, { sequentialRead: true }).stats();
+    assert.strictEqual(isOpaque, true);
+  });
 });