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Code Issues Releases Activity

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

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-06-23 01:25:55 +02:00
parent 4ec7ef56bd
commit 730e07f10b
1 changed files with 2 additions and 2 deletions
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4
libavcodec/sonic.c
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@ -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));