From 9f8994e4ba1fd1df6b9ed896e6770f67fa2e8035 Mon Sep 17 00:00:00 2001
From: yunjieguo <yunjieguo@tencent.com>
Date: Tue, 2 Aug 2022 15:19:51 +0800
Subject: [PATCH] fix panic without finerprint

---
 sdpinfo.go | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/sdpinfo.go b/sdpinfo.go
index 3e025b7..084af7f 100644
--- a/sdpinfo.go
+++ b/sdpinfo.go
@@ -826,19 +826,18 @@ func Parse(sdp string) (*SDPInfo, error) {
 			sdpInfo.AddCandidate(candidateInfo)
 		}
 
-		var fingerpirnt *transform.FingerprintStruct
+		var remoteHash, remoteFingerprint string
 
 		if sdpMap.Fingerprint != nil {
-			fingerpirnt = sdpMap.Fingerprint
+			remoteHash = sdpMap.Fingerprint.Type
+			remoteFingerprint = sdpMap.Fingerprint.Hash
 		}
 
 		if md.Fingerprint != nil {
-			fingerpirnt = md.Fingerprint
+			remoteHash = md.Fingerprint.Type
+			remoteFingerprint = md.Fingerprint.Hash
 		}
 
-		remoteHash := fingerpirnt.Type
-		remoteFingerprint := fingerpirnt.Hash
-
 		setup := SETUPACTPASS
 
 		if md.Setup != "" {