ffurl_shutdown    256 libavformat/dashenc.c         ffurl_shutdown(http_url_context, AVIO_FLAG_WRITE);
ffurl_shutdown    917 libavformat/ftp.c         return ffurl_shutdown(s->conn_data, flags);
ffurl_shutdown    293 libavformat/hlsenc.c         ffurl_shutdown(http_url_context, AVIO_FLAG_WRITE);
ffurl_shutdown    270 libavformat/url.h int ffurl_shutdown(URLContext *h, int flags);