From 49ecb1bdc027e2e15b7af96b845ef17b0da1b0f5 Mon Sep 17 00:00:00 2001
From: oioitff <oioitff@gmail.com>
Date: Fri, 7 Jun 2013 17:14:26 +0800
Subject: [PATCH] Add support for mono CG audios.

---
 Core/HW/MediaEngine.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Core/HW/MediaEngine.cpp b/Core/HW/MediaEngine.cpp
index 335a65e243..244feb3f23 100644
--- a/Core/HW/MediaEngine.cpp
+++ b/Core/HW/MediaEngine.cpp
@@ -561,6 +561,16 @@ int MediaEngine::getAudioSamples(u8* buffer) {
 	u8* frame = audioStream + m_audioPos;
 	int outbytes = 0;
 	Atrac3plus_Decoder::Decode(m_audioContext, frame, frameSize - 8, &outbytes, buffer);
+	if (headerCode1 == 0x24) {
+		// it a mono atrac3plus, convert it to stereo
+		s16 *outbuf = (s16*)buffer;
+		s16 *inbuf = (s16*)buffer;
+		for (int i = 0x800 - 1; i >= 0; i--) {
+			s16 sample = inbuf[i];
+			outbuf[i * 2] = sample;
+			outbuf[i * 2 + 1] = sample;
+		}
+	}
 	if (nextHeader >= 0) {
 		m_audioPos = nextHeader;
 	} else