From 686ba5f4eabf123e710d03ed0ee73e787a424408 Mon Sep 17 00:00:00 2001 From: Reimar Döffinger Date: Fri, 20 Jan 2012 22:02:32 +0100 Subject: Minor optimization of base64 decode. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Reimar Döffinger --- libavutil/base64.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'libavutil/base64.c') diff --git a/libavutil/base64.c b/libavutil/base64.c index 4ccc12e76e..6843a5396a 100644 --- a/libavutil/base64.c +++ b/libavutil/base64.c @@ -26,6 +26,7 @@ #include "common.h" #include "base64.h" +#include "avassert.h" /* ---------------- private code */ static const uint8_t map2[] = @@ -48,10 +49,10 @@ int av_base64_decode(uint8_t *out, const char *in, int out_size) uint8_t *dst = out; v = 0; - for (i = 0; in[i] && in[i] != '='; i++) { + for (i = 0; ; i++) { unsigned int index= in[i]-43; if (index>=FF_ARRAY_ELEMS(map2) || map2[index] == 0xff) - return -1; + return in[i] && in[i] != '=' ? -1 : dst - out; v = (v << 6) + map2[index]; if (i & 3) { if (dst - out < out_size) { @@ -60,7 +61,8 @@ int av_base64_decode(uint8_t *out, const char *in, int out_size) } } - return dst - out; + av_assert1(0); + return 0; } /***************************************************************************** -- cgit v1.2.3