1 files changed, 23 insertions, 0 deletions
diff --git a/media/ffvpx/libavutil/avstring.c b/media/ffvpx/libavutil/avstring.c
index 1787a1ef5..f03dd2514 100644
--- a/media/ffvpx/libavutil/avstring.c
+++ b/media/ffvpx/libavutil/avstring.c
@@ -231,6 +231,29 @@ int av_strncasecmp(const char *a, const char *b, size_t n)
     return c1 - c2;
 }
 
+char *av_strireplace(const char *str, const char *from, const char *to)
+{
+    char *ret = NULL;
+    const char *pstr2, *pstr = str;
+    size_t tolen = strlen(to), fromlen = strlen(from);
+    AVBPrint pbuf;
+
+    av_bprint_init(&pbuf, 1, AV_BPRINT_SIZE_UNLIMITED);
+    while ((pstr2 = av_stristr(pstr, from))) {
+        av_bprint_append_data(&pbuf, pstr, pstr2 - pstr);
+        pstr = pstr2 + fromlen;
+        av_bprint_append_data(&pbuf, to, tolen);
+    }
+    av_bprint_append_data(&pbuf, pstr, strlen(pstr));
+    if (!av_bprint_is_complete(&pbuf)) {
+        av_bprint_finalize(&pbuf, NULL);
+    } else {
+        av_bprint_finalize(&pbuf, &ret);
+    }
+
+    return ret;
+}
+
 const char *av_basename(const char *path)
 {
     char *p = strrchr(path, '/');