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| author | Christophe Gisquet <Christophe.Gisquet@gmail.com> | 2010-07-12 12:32:24 +0000 |
|---|---|---|
| committer | Benoit Fouet <benoit.fouet@free.fr> | 2010-07-12 12:32:24 +0000 |
| commit | f2401c214dd4ff3aa80c6d459ad55f0202bb382d (patch) | |
| tree | d2a7da2c8509064d00bb8c3b96ee3c17887aa5e2 /libavcodec/dca.c | |
| parent | bf55cf19ca46fdc70444359558243813db40418f (diff) | |
Use math constant instead of hardcoded rounded value for sqrt(0.5).
Patch by Christophe.Gisquet (gmail)
Originally committed as revision 24213 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/dca.c')
| -rw-r--r-- | libavcodec/dca.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/dca.c b/libavcodec/dca.c index b81094a000..77299dfcb3 100644 --- a/libavcodec/dca.c +++ b/libavcodec/dca.c @@ -1403,8 +1403,8 @@ static int dca_decode_frame(AVCodecContext * avctx, float* rt_chan = s->samples + s->channel_order_tab[s->xch_base_channel - 1] * 256; int j; for(j = 0; j < 256; ++j) { - lt_chan[j] -= (back_chan[j] - s->add_bias) * 0.707107f; - rt_chan[j] -= (back_chan[j] - s->add_bias) * 0.707107f; + lt_chan[j] -= (back_chan[j] - s->add_bias) * M_SQRT1_2; + rt_chan[j] -= (back_chan[j] - s->add_bias) * M_SQRT1_2; } } |