lavc/vc2enc_dwt: Avoid left-shifting a negative value.

Fixes ticket #7985.
6 years ago · ac457a3bc5
parent e82a619c2a
commit ac457a3bc5
1 changed files with 1 additions and 1 deletions
--- a/libavcodec/vc2enc_dwt.c
+++ b/libavcodec/vc2enc_dwt.c
@ -66,7 +66,7 @@ static void vc2_subband_dwt_97(VC2TransformContext *t, dwtcoef *data,
     */
    for (y = 0; y < synth_height; y++) {
        for (x = 0; x < synth_width; x++)
-            synthl[x] = datal[x] << 1;
+            synthl[x] = datal[x] * 2;
        synthl += synth_width;
        datal += stride;
    }