sonic: use M_SQRT2

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
14 years ago · 8477e63d3c
parent f8d8d2e235
commit 8477e63d3c
1 changed files with 1 additions and 1 deletions
--- a/libavcodec/sonic.c
+++ b/libavcodec/sonic.c
@ -701,7 +701,7 @@ static int sonic_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
        }

        energy2 = sqrt(energy2/(s->channels*s->block_align));
-        energy1 = sqrt(2.0)*energy1/(s->channels*s->block_align);
+        energy1 = M_SQRT2*energy1/(s->channels*s->block_align);

        // increase bitrate when samples are like a gaussian distribution
        // reduce bitrate when samples are like a two-tailed exponential distribution