avcodec/pixlet: fix undefined behaviour in postprocess_chroma

Signed-off-by: Paul B Mahol <onemda@gmail.com>
8 years ago · 43cd33be16
parent e1b8271949
commit 43cd33be16
1 changed files with 2 additions and 2 deletions
--- a/libavcodec/pixlet.c
+++ b/libavcodec/pixlet.c
@ -479,8 +479,8 @@ static void postprocess_chroma(AVFrame *frame, int w, int h, int depth)
    int16_t *srcv  = (int16_t *)frame->data[2];
    ptrdiff_t strideu = frame->linesize[1] / 2;
    ptrdiff_t stridev = frame->linesize[2] / 2;
-    const int add = 1 << (depth - 1);
-    const int shift = 16 - depth;
+    const unsigned add = 1 << (depth - 1);
+    const unsigned shift = 16 - depth;
    int i, j;

    for (j = 0; j < h; j++) {