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| author | Vitor Sessak <vitor1001@gmail.com> | 2011-09-29 21:28:18 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2011-09-29 21:44:03 +0200 |
| commit | 6e505547f148235b5e2733bf42a4615ae67d4cb4 (patch) | |
| tree | b782efa9744a822e4590a72a10cd767277df2a9a /libavcodec/g723_1.c | |
| parent | c02c52f7b2870869b58fab37414a8f7ac55da25e (diff) | |
g723.1: cleanup square_root()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/g723_1.c')
| -rw-r--r-- | libavcodec/g723_1.c | 12 |
1 files changed, 1 insertions, 11 deletions
diff --git a/libavcodec/g723_1.c b/libavcodec/g723_1.c index de7fe3b80b..a48eca3ab0 100644 --- a/libavcodec/g723_1.c +++ b/libavcodec/g723_1.c @@ -196,17 +196,7 @@ static int unpack_bitstream(G723_1_Context *p, const uint8_t *buf, */ static int16_t square_root(int val) { - int16_t res = 0; - int16_t exp = 0x4000; - int i; - - for (i = 0; i < 14; i ++) { - int res_exp = res + exp; - if (val >= res_exp * res_exp << 1) - res += exp; - exp >>= 1; - } - return res; + return (ff_sqrt(val << 1) >> 1) & (~1); } /** |