avutil/log: skip IO calls on empty strings

These occur when no context is set for example, thus they are common Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-12-06 23:30:34 +01:00 · 2013-12-06 23:30:34 +01:00 · a044a183a3
commit a044a183a3
parent d6838309fe
1 changed files with 3 additions and 0 deletions
--- a/libavutil/log.c
+++ b/libavutil/log.c
@ -103,6 +103,9 @@ static int use_color = -1;

 static void colored_fputs(int level, const char *str)
 {
+    if (!*str)
+        return;
+
    if (use_color < 0) {
 #if HAVE_SETCONSOLETEXTATTRIBUTE
        CONSOLE_SCREEN_BUFFER_INFO con_info;