avformat/url: Use size_t for len from strlen()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

1 files changed, 1 insertions, 1 deletions

diff --git a/libavformat/url.c b/libavformat/url.c
index 3a2c78bc52..596fb49cfc 100644
--- a/libavformat/url.c
+++ b/libavformat/url.c
@@ -68,7 +68,7 @@ int ff_url_join(char *str, int size, const char *proto,
         av_strlcatf(str, size, ":%d", port);
     if (fmt) {
         va_list vl;
-        int len = strlen(str);
+        size_t len = strlen(str);
 
         va_start(vl, fmt);
         vsnprintf(str + len, size > len ? size - len : 0, fmt, vl);