From 9ccb5455ca8c63eb330abd3c2ed6a9b0ae3b755e Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Fri, 23 May 2014 22:15:57 +0200 Subject: avcodec/dcadec: use a constant instead of assuming every compiler can optimize pow(2,-15) Idea-by: nevcairiel and wm4 Signed-off-by: Michael Niedermayer --- libavcodec/dcadec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'libavcodec/dcadec.c') diff --git a/libavcodec/dcadec.c b/libavcodec/dcadec.c index 684294e..c072044 100644 --- a/libavcodec/dcadec.c +++ b/libavcodec/dcadec.c @@ -2107,7 +2107,7 @@ static float dca_dmix_code(unsigned code) { int sign = (code >> 8) - 1; code &= 0xff; - return ((dca_dmixtable[code] ^ sign) - sign) * pow(2, -15); + return ((dca_dmixtable[code] ^ sign) - sign) * 0x1p-15; } /** -- cgit v1.1