rtsp://admin:12345@192.168.239.219:554/: Server returned 401 Unauthorized (authorization failed)

一段实际使用的RTSP命令交互过程，该过程是通过PC对海康摄像头视频流的拉取和播放，并通过Wireshark抓取客户端的数据得到的：

OPTIONS rtsp://10.3.8.202:554 RTSP/1.0
CSeq: 2
User-Agent: LibVLC/2.2.8 (LIVE555 Streaming Media v2016.02.22)
 
RTSP/1.0 200 OK
CSeq: 2
Public: OPTIONS, DESCRIBE, PLAY, PAUSE, SETUP, TEARDOWN, SET_PARAMETER, GET_PARAMETER
Date:  Mon, Jan 29 2018 16:56:47 GMT
 
DESCRIBE rtsp://10.3.8.202:554 RTSP/1.0
CSeq: 3
User-Agent: LibVLC/2.2.8 (LIVE555 Streaming Media v2016.02.22)
Accept: application/sdp
 
RTSP/1.0 401 Unauthorized
CSeq: 3
WWW-Authenticate: Digest realm="IP Camera(10789)", nonce="6b9a455aec675b8db81a9ceb802e4eb8", stale="FALSE"
Date:  Mon, Jan 29 2018 16:56:47 GMT
 
DESCRIBE rtsp://10.3.8.202:554 RTSP/1.0
CSeq: 4
Authorization: Digest username="admin", realm="IP Camera(10789)", nonce="6b9a455aec675b8db81a9ceb802e4eb8", uri="rtsp://10.3.8.202:554", response="3fc4b15d7a923fc36f32897e3cee69aa"
User-Agent: LibVLC/2.2.8 (LIVE555 Streaming Media v2016.02.22)
Accept: application/sdp
 
RTSP/1.0 200 OK
CSeq: 4
Content-Type: application/sdp
Content-Base: rtsp://10.3.8.202:554/
Content-Length: 551
 
v=0
o=- 1517245007527432 1517245007527432 IN IP4 10.3.8.202
s=Media Presentation
e=NONE
b=AS:5050
t=0 0
a=control:rtsp://10.3.8.202:554/
m=video 0 RTP/AVP 96
c=IN IP4 0.0.0.0
b=AS:5000
a=recvonly
a=x-dimensions:2048,1536
a=control:rtsp://10.3.8.202:554/trackID=1
a=rtpmap:96 H264/90000
a=fmtp:96 profile-level-id=420029; packetization-mode=1; sprop-parameter-sets=Z00AMp2oCAAwabgICAoAAAMAAgAAAwBlCA==,aO48gA==
a=Media_header:MEDIAINFO=494D4B48010200000400000100000000000000000000000000000000000000000000000000000000;
a=appversion:1.0
 
SETUP rtsp://10.3.8.202:554/trackID=1 RTSP/1.0
CSeq: 5
Authorization: Digest username="admin", realm="IP Camera(10789)", nonce="6b9a455aec675b8db81a9ceb802e4eb8", uri="rtsp://10.3.8.202:554/", response="ddfbf3e268ae954979407369a104a620"
User-Agent: LibVLC/2.2.8 (LIVE555 Streaming Media v2016.02.22)
Transport: RTP/AVP;unicast;client_port=57844-57845
 
RTSP/1.0 200 OK
CSeq: 5
Session:       1273222592;timeout=60
Transport: RTP/AVP;unicast;client_port=57844-57845;server_port=8218-8219;ssrc=5181c73a;mode="play"
Date:  Mon, Jan 29 2018 16:56:47 GMT
 
PLAY rtsp://10.3.8.202:554/ RTSP/1.0
CSeq: 6
Authorization: Digest username="admin", realm="IP Camera(10789)", nonce="6b9a455aec675b8db81a9ceb802e4eb8", uri="rtsp://10.3.8.202:554/", response="b5abf0b230de4b49d6c6d42569f88e91"
User-Agent: LibVLC/2.2.8 (LIVE555 Streaming Media v2016.02.22)
Session: 1273222592
Range: npt=0.000-
 
RTSP/1.0 200 OK
CSeq: 6
Session:       1273222592
RTP-Info: url=rtsp://10.3.8.202:554/trackID=1;seq=65373;rtptime=3566398668
Date:  Mon, Jan 29 2018 16:56:47 GMT
 
GET_PARAMETER rtsp://10.3.8.202:554/ RTSP/1.0
CSeq: 7
Authorization: Digest username="admin", realm="IP Camera(10789)", nonce="6b9a455aec675b8db81a9ceb802e4eb8", uri="rtsp://10.3.8.202:554/", response="bb2309dcd083b25991c13e165673687b"
User-Agent: LibVLC/2.2.8 (LIVE555 Streaming Media v2016.02.22)
Session: 1273222592
 
RTSP/1.0 200 OK
CSeq: 7
Date:  Mon, Jan 29 2018 16:56:47 GMT
 
TEARDOWN rtsp://10.3.8.202:554/ RTSP/1.0
CSeq: 8
Authorization: Digest username="admin", realm="IP Camera(10789)", nonce="6b9a455aec675b8db81a9ceb802e4eb8", uri="rtsp://10.3.8.202:554/", response="e08a15c27d3daac14fd4b4bcab424a5e"
User-Agent: LibVLC/2.2.8 (LIVE555 Streaming Media v2016.02.22)
Session: 1273222592
 
RTSP/1.0 200 OK
CSeq: 8
Session:       1273222592
Date:  Mon, Jan 29 2018 16:57:03 GMT