1 files changed, 8 insertions, 0 deletions
diff --git a/libavutil/bprint.c b/libavutil/bprint.c
index 08383b293a..115bf0c8de 100644
--- a/libavutil/bprint.c
+++ b/libavutil/bprint.c
@@ -119,6 +119,14 @@ void av_bprint_chars(AVBPrint *buf, char c, unsigned n)
     av_bprint_grow(buf, n);
 }
 
+void av_bprint_clear(AVBPrint *buf)
+{
+    if (buf->len) {
+        *buf->str = 0;
+        buf->len  = 0;
+    }
+}
+
 int av_bprint_finalize(AVBPrint *buf, char **ret_str)
 {
     unsigned real_size = FFMIN(buf->len + 1, buf->size);