diff --git a/libavcodec/apedec.c b/libavcodec/apedec.c index 7b34d26ada..fcccfbe6d4 100644 --- a/libavcodec/apedec.c +++ b/libavcodec/apedec.c @@ -1281,7 +1281,7 @@ static void do_apply_filter(APEContext *ctx, int version, APEFilter *f, /* Update the adaption coefficients */ absres = FFABS(res); if (absres) - *f->adaptcoeffs = ((res & (-(1<<31))) ^ (-(1<<30))) >> + *f->adaptcoeffs = ((res & INT32_MIN) ^ (-(1<<30))) >> (25 + (absres <= f->avg*3) + (absres <= f->avg*4/3)); else *f->adaptcoeffs = 0;