From: Michael Niedermayer <michaelni@gmx.at>
Date: Wed, 31 Jan 2007 10:07:22 +0000 (+0000)
Subject: replace if(x>>b) by if(x>C) as shifts are slow on some cpus and i have my doubts... 
X-Git-Tag: v0.5~10281
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=801778bc8306e4b58d8c27022aa7903e86a2b040;p=platform%2Fupstream%2Flibav.git

replace if(x>>b) by if(x>C) as shifts are slow on some cpus and i have my doubts that gcc can replace the shifts as x is signed, it could in theory but well its gcc ...

Originally committed as revision 7776 to svn://svn.ffmpeg.org/ffmpeg/trunk
---

diff --git a/libavcodec/lzo.c b/libavcodec/lzo.c
index e4a1111..54a34c2 100644
--- a/libavcodec/lzo.c
+++ b/libavcodec/lzo.c
@@ -184,11 +184,11 @@ int lzo1x_decode(void *out, int *outlen, void *in, int *inlen) {
     }
     while (!c.error) {
         int cnt, back;
-        if (x >> 4) {
-            if (x >> 6) {
+        if (x > 15) {
+            if (x > 63) {
                 cnt = (x >> 5) - 1;
                 back = (GETB(c) << 3) + ((x >> 2) & 7) + 1;
-            } else if (x >> 5) {
+            } else if (x > 31) {
                 cnt = get_len(&c, x, 31);
                 x = GETB(c);
                 back = (GETB(c) << 6) + (x >> 2) + 1;