diff --git a/libavutil/log.c b/libavutil/log.c
index 7786ea211ddc9fed5e9fe6b6b22991180c75dd4b..f43593ad923e5f69c35caf30bd4000869443a27f 100644
--- a/libavutil/log.c
+++ b/libavutil/log.c
@@ -24,7 +24,7 @@
 
 #include "avutil.h"
 
-static int av_log_level = AV_LOG_INFO;
+int av_log_level = AV_LOG_INFO;
 
 static void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl)
 {
@@ -43,7 +43,11 @@ static void av_log_default_callback(void* ptr, int level, const char* fmt, va_li
     vfprintf(stderr, fmt, vl);
 }
 
+#if LIBAVUTIL_VERSION_INT < (50<<16)
 static void (*av_log_callback)(void*, int, const char*, va_list) = av_log_default_callback;
+#else
+void (*av_vlog)(void*, int, const char*, va_list) = av_log_default_callback;
+#endif
 
 void av_log(void* avcl, int level, const char *fmt, ...)
 {
@@ -53,6 +57,7 @@ void av_log(void* avcl, int level, const char *fmt, ...)
     va_end(vl);
 }
 
+#if LIBAVUTIL_VERSION_INT < (50<<16)
 void av_vlog(void* avcl, int level, const char *fmt, va_list vl)
 {
     av_log_callback(avcl, level, fmt, vl);
@@ -72,3 +77,4 @@ void av_log_set_callback(void (*callback)(void*, int, const char*, va_list))
 {
     av_log_callback = callback;
 }
+#endif
diff --git a/libavutil/log.h b/libavutil/log.h
index 6c2dba009db90b95c6ba013c53b6b89eaef9b09a..13366064e9a4f0c2ddf645988b504b933b14da0c 100644
--- a/libavutil/log.h
+++ b/libavutil/log.h
@@ -22,6 +22,7 @@ struct AVCLASS {
 #define AV_LOG_ERROR 0
 #define AV_LOG_INFO 1
 #define AV_LOG_DEBUG 2
+extern int av_log_level;
 
 #ifdef __GNUC__
 extern void av_log(void*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4)));
@@ -29,9 +30,13 @@ extern void av_log(void*, int level, const char *fmt, ...) __attribute__ ((__for
 extern void av_log(void*, int level, const char *fmt, ...);
 #endif
 
+#if LIBAVUTIL_VERSION_INT < (50<<16)
 extern void av_vlog(void*, int level, const char *fmt, va_list);
 extern int av_log_get_level(void);
 extern void av_log_set_level(int);
 extern void av_log_set_callback(void (*)(void*, int, const char*, va_list));
+#else
+extern void (*av_vlog)(void*, int, const char*, va_list);
+#endif
 
 #endif /* LOG_H */