diff --git a/libavformat/whip.c b/libavformat/whip.c index ee88e7b0ac..885dc8acbb 100644 --- a/libavformat/whip.c +++ b/libavformat/whip.c @@ -880,12 +880,12 @@ static int parse_answer(AVFormatContext *s) goto end; } } else if (av_strstart(line, "a=candidate:", &ptr) && !whip->ice_protocol) { - ptr = av_stristr(ptr, "udp"); if (ptr && av_stristr(ptr, "host")) { - char protocol[17], host[129]; - int priority, port; - ret = sscanf(ptr, "%16s %d %128s %d typ host", protocol, &priority, host, &port); - if (ret != 4) { + /* Refer to RFC 5245 15.1 */ + char foundation[33], protocol[17], host[129]; + int component_id, priority, port; + ret = sscanf(ptr, "%32s %d %16s %d %128s %d typ host", foundation, &component_id, protocol, &priority, host, &port); + if (ret != 6) { av_log(whip, AV_LOG_ERROR, "Failed %d to parse line %d %s from %s\n", ret, i, line, whip->sdp_answer); ret = AVERROR(EIO);