[FFmpeg-cvslog] sonic: avoid float sqrt() for integer input & output

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Sun Jun 23 01:25:55 2013 +0200| [730e07f10b972aaf63e3aeb04d6f179c5640fd6f] | committer: Michael Niedermayer

sonic: avoid float sqrt() for integer input & output

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=730e07f10b972aaf63e3aeb04d6f179c5640fd6f
---

 libavcodec/sonic.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libavcodec/sonic.c b/libavcodec/sonic.c
index 85248b1..787cd55 100644
--- a/libavcodec/sonic.c
+++ b/libavcodec/sonic.c
@@ -545,7 +545,7 @@ static av_cold int sonic_encode_init(AVCodecContext *avctx)
     // generate taps
     s->tap_quant = av_calloc(s->num_taps, sizeof(*s->tap_quant));
     for (i = 0; i < s->num_taps; i++)
-        s->tap_quant[i] = (int)(sqrt(i+1));
+        s->tap_quant[i] = ff_sqrt(i+1);
 
     s->channels = avctx->channels;
     s->samplerate = avctx->sample_rate;
@@ -820,7 +820,7 @@ static av_cold int sonic_decode_init(AVCodecContext *avctx)
     // generate taps
     s->tap_quant = av_calloc(s->num_taps, sizeof(*s->tap_quant));
     for (i = 0; i < s->num_taps; i++)
-        s->tap_quant[i] = (int)(sqrt(i+1));
+        s->tap_quant[i] = ff_sqrt(i+1);
 
     s->predictor_k = av_calloc(s->num_taps, sizeof(*s->predictor_k));