From 369cb235b544c89c68ff86a00b3f8dd92a208d25 Mon Sep 17 00:00:00 2001
From: Carl Hetherington <cth@carlh.net>
Date: Wed, 3 Jan 2024 22:20:30 +0100
Subject: Add hack to make a noisy J2C frame.

---
 hacks/noise.cc | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 hacks/noise.cc

diff --git a/hacks/noise.cc b/hacks/noise.cc
new file mode 100644
index 000000000..967e1a6da
--- /dev/null
+++ b/hacks/noise.cc
@@ -0,0 +1,18 @@
+#include <dcp/openjpeg_image.h>
+#include <dcp/j2k_transcode.h>
+
+int main()
+{
+	auto image = std::make_shared<dcp::OpenJPEGImage>(dcp::Size(1998, 1080));
+
+	for (int y = 0; y < 1080; ++y) {
+		for (int x = 0; x < 1998; ++x) {
+			for (int c = 0; c < 3; ++c ) {
+				image->data(c)[x + y * 1998] = rand() % 4096;
+			}
+		}
+	}
+
+	dcp::compress_j2k(image, 250000000, 24, false, false).write("noise.j2c");
+	return 0;
+}
-- 
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