+static int nested_io_open(AVFormatContext *s, AVIOContext **pb, const char *url,
+ int flags, AVDictionary **opts)
+{
+ av_log(s, AV_LOG_ERROR,
+ "A HLS playlist item '%s' referred to an external file '%s'. "
+ "Opening this file was forbidden for security reasons\n",
+ s->filename, url);
+ return AVERROR(EPERM);
+}
+