From 7d1b17b83330aefe2f32a66fe84effe46ae51014 Mon Sep 17 00:00:00 2001
From: Justin Ruggles <justin.ruggles@gmail.com>
Date: Thu, 27 Oct 2011 13:58:05 -0400
Subject: [PATCH] cin audio: use sign_extend() instead of casting to int16_t
---
libavcodec/dsicinav.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/libavcodec/dsicinav.c b/libavcodec/dsicinav.c
index a6a4ff1c6e1..cbf7c4a6f82 100644
--- a/libavcodec/dsicinav.c
+++ b/libavcodec/dsicinav.c
@@ -26,6 +26,7 @@
#include "avcodec.h"
#include "bytestream.h"
+#include "mathops.h"
typedef enum CinVideoBitmapIndex {
@@ -339,7 +340,7 @@ static int cinaudio_decode_frame(AVCodecContext *avctx,
delta = cin->delta;
if (cin->initial_decode_frame) {
cin->initial_decode_frame = 0;
- delta = (int16_t)AV_RL16(buf);
+ delta = sign_extend(AV_RL16(buf), 16);
buf += 2;
*samples++ = delta;
}
--
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