Merge commit 'f3fdef108eb06b1e71b29152bf6822519e787efe'

* commit 'f3fdef108eb06b1e71b29152bf6822519e787efe':
  ape: Avoid undefined behaviour

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

libavcodec/apedec.c

@@ -1284,7 +1284,7 @@ static void do_apply_filter(APEContext *ctx, int version, APEFilter *f,
             /* Update the adaption coefficients */
             absres = FFABS(res);
             if (absres)
-                *f->adaptcoeffs = ((res & INT32_MIN) ^ (-(1<<30))) >>
+                *f->adaptcoeffs = ((res & INT32_MIN) ^ ((~0UL) << 30)) >>
                                   (25 + (absres <= f->avg*3) + (absres <= f->avg*4/3));
             else
                 *f->adaptcoeffs = 0;