cin audio: use sign_extend() instead of casting to int16_t

13 years ago · 7d1b17b833
parent 405af43104
commit 7d1b17b833
1 changed files with 2 additions and 1 deletions
--- 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;
    }