From 6bf0a5cb5034a7e684dcc3500e841785237ce2dd Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 19:32:43 +0200
Subject: Adding upstream version 1:115.7.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../buffer-source-slow-resampling-1.html           | 34 ++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 dom/media/test/crashtests/buffer-source-slow-resampling-1.html

(limited to 'dom/media/test/crashtests/buffer-source-slow-resampling-1.html')
diff --git a/dom/media/test/crashtests/buffer-source-slow-resampling-1.html b/dom/media/test/crashtests/buffer-source-slow-resampling-1.html
new file mode 100644
index 0000000000..5d8a50442b
--- /dev/null
+++ b/dom/media/test/crashtests/buffer-source-slow-resampling-1.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<script>
+const blockSize = 128;
+// The sample rate is a prime number so that the resampler is not expected to
+// simplify in/out fractions.
+const rate = 44101;
+var context = new window.OfflineAudioContext(1, 3 * blockSize, rate);
+// Non-zero buffer, so it can't be optimized away.
+var buffer = context.createBuffer(1, 128, rate);
+buffer.getChannelData(0)[0] = 1.0;
+var source = context.createBufferSource();
+source.buffer = buffer;
+source.loop = true;
+// Initialize the resampler with a slow input rate. 
+// With the current (Mar 2017) implementation, very slow rates give the
+// resampler a very large denominator.
+source.playbackRate.setValueAtTime(rate / 0x7fffffff, 0.0);
+// Change to a moderate input rate.
+// With the current implementation, skip_frac_num increases by den_rate for
+// each output sample and so one block before the change in playback rate is
+// enough for high skip_frac_num at the time of the change.
+const changeBlock = 1;
+const changeBlockSeconds = changeBlock * blockSize / rate;
+// With the current speex_resampler_set_rate_frac() implementation, the
+// moderate resampler denominator is still large enough to trigger overflow of
+// 32-bit unsigned integer arithmetic.
+source.playbackRate.setValueAtTime(rate / (rate + 1), changeBlockSeconds);
+source.start(0);
+context.startRendering().
+  then(function() {
+    document.documentElement.removeAttribute("class");
+  });
+</script>
-- 
cgit v1.2.3

