From d8fd06c37de94d78eb37af93177de7c3040cf1f2 Mon Sep 17 00:00:00 2001
From: Luca Barbato <lu_zero@gentoo.org>
Date: Sun, 23 Dec 2012 21:25:24 +0100
Subject: avstring: add av_basename and av_dirname

Thread safe version of the common basename and dirname.
---
 libavutil/avstring.c | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

(limited to 'libavutil/avstring.c')

diff --git a/libavutil/avstring.c b/libavutil/avstring.c
index c14832e7b9..2c88bd3d5b 100644
--- a/libavutil/avstring.c
+++ b/libavutil/avstring.c
@@ -25,6 +25,8 @@
 #include <string.h>
 #include <ctype.h>
 #include "avstring.h"
+#include "config.h"
+#include "common.h"
 #include "mem.h"
 
 int av_strstart(const char *str, const char *pfx, const char **ptr)
@@ -156,6 +158,45 @@ int av_strncasecmp(const char *a, const char *b, size_t n)
     return c1 - c2;
 }
 
+const char *av_basename(const char *path)
+{
+    char *p = strrchr(path, '/');
+
+#if HAVE_DOS_PATHS
+    char *q = strrchr(path, '\\');
+    char *d = strchr(path, ':');
+
+    p = FFMAX3(p, q, d);
+#endif
+
+    if (!p)
+        return path;
+
+    return p + 1;
+}
+
+const char *av_dirname(char *path)
+{
+    char *p = strrchr(path, '/');
+
+#if HAVE_DOS_PATHS
+    char *q = strrchr(path, '\\');
+    char *d = strchr(path, ':');
+
+    d = d ? d + 1 : d;
+
+    p = FFMAX3(p, q, d);
+#endif
+
+    if (!p)
+        return ".";
+
+    *p = '\0';
+
+    return path;
+}
+
+
 #ifdef TEST
 
 #include "common.h"
-- 
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