From e141cf2c5794cd9884f2806b7766a1e0bb47ebe5 Mon Sep 17 00:00:00 2001 From: Mans Rullgard Date: Fri, 10 Aug 2012 00:13:46 +0100 Subject: g723.1: deobfuscate an expression (x << 2) - x is just an optimisation of 3 * x the compiler is perfectly capable of doing on its own. Signed-off-by: Mans Rullgard --- libavcodec/g723_1.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'libavcodec/g723_1.c') diff --git a/libavcodec/g723_1.c b/libavcodec/g723_1.c index bf753ab182..c337deb881 100644 --- a/libavcodec/g723_1.c +++ b/libavcodec/g723_1.c @@ -974,8 +974,7 @@ static void formant_postfilter(G723_1_Context *p, int16_t *lpc, int16_t *buf) if (temp) { temp = (auto_corr[0] >> 2) / temp; } - p->reflection_coef = ((p->reflection_coef << 2) - p->reflection_coef + - temp + 2) >> 2; + p->reflection_coef = (3 * p->reflection_coef + temp + 2) >> 2; temp = (p->reflection_coef * 0xffffc >> 3) & 0xfffc; /* Compensation filter */ -- cgit v1.2.3