diff options
| -rw-r--r-- | libavcodec/apedec.c | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/libavcodec/apedec.c b/libavcodec/apedec.c index 3a0d172c9e..b8d1e9e254 100644 --- a/libavcodec/apedec.c +++ b/libavcodec/apedec.c @@ -678,14 +678,9 @@ static inline void do_apply_filter(APEContext * ctx, int version, APEFilter *f, /* Version 3.98 and later files */ /* Update the adaption coefficients */ - absres = (res < 0 ? -res : res); - - if (absres > (f->avg * 3)) - *f->adaptcoeffs = ((res >> 25) & 64) - 32; - else if (absres > (f->avg * 4) / 3) - *f->adaptcoeffs = ((res >> 26) & 32) - 16; - else if (absres > 0) - *f->adaptcoeffs = ((res >> 27) & 16) - 8; + absres = FFABS(res); + if (absres) + *f->adaptcoeffs = ((res & (1<<31)) - (1<<30)) >> (25 + (absres <= f->avg*3) + (absres <= f->avg*4/3)); else *f->adaptcoeffs = 0; |