From ec7448895a77f67189e775c8eb0365cc3d636780 Mon Sep 17 00:00:00 2001
From: Carl Hetherington <cth@carlh.net>
Date: Wed, 3 Oct 2012 00:16:29 +0100
Subject: [PATCH] Note first difference on an audio equals() discrepancy.

---
 src/sound_asset.cc | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/sound_asset.cc b/src/sound_asset.cc
index 7a3d4415..9f27a894 100644
--- a/src/sound_asset.cc
+++ b/src/sound_asset.cc
@@ -255,6 +255,14 @@ SoundAsset::equals (shared_ptr<const Asset> other, EqualityOptions opt, list<str
 		
 		if (memcmp (buffer_A.RoData(), buffer_B.RoData(), buffer_A.Size()) != 0) {
 			notes.push_back ("PCM data for MXF frame " + lexical_cast<string>(i) + " differ");
+
+			for (uint32_t i = 0; i < buffer_A.Size(); ++i) {
+				int const d = abs (buffer_A.RoData()[i] - buffer_B.RoData()[i]);
+				if (d) {
+					notes.push_back ("First difference is " + lexical_cast<string> (d));
+					return false;
+				}
+			}
 			return false;
 		}
 	}
-- 
2.30.2