我正在编写 RTSP 服务器并且有一些问题。我使用 VLC 作为客户端。
服务器从客户端（VLC 播放器）接收 OPTIONS、DESCRIBE、SETUP 和 PLAY 命令并回答这些命令。
通过 SETUP 命令客户端发送端口号，我正在使用该端口发送数据。当我的服务器收到 PLAY 命令时，它正在发送答案并开始流式传输数据。我正在使用客户端端口创建两个 DatagramSocket 实例。
我正在尝试流式传输 mp4 文件。我正在使用mp4parse java 库来获取要流式传输的音频和视频轨道数据。
因此，当我在 VLC 上单击播放时，它正在连接并开始等待数据，几秒钟后，我在 VLC 消息中收到了这条消息：
live555 warning: no data received in 10s. Switching to TCP
这是我的 SDP 数据：
v=0
o=- 0 0 IN IP4 127.0.0.1
m=video 0 RTP/AVP 96
b=AS:1633
a=rtpmap:96 H264/90000
a=control:trackID=65536
a=fmtp:96 profile-level-id=64001F; packetization-mode=1; sprop-parameter-sets=Z2QAH6zZgFAFuhAAAAMAEAAAAwMg8YMZoA==,aOl7LIs=
a=framesize:96 1280-720
m=audio 0 RTP/AVP 97
b=AS:129
a=rtpmap:97 mpeg4-generic/48000/2
a=control:trackID=65537
a=fmtp:97 profile-level-id=41; config=1190; streamType=5; mode=AAC-hbr; objectType=64; constantDuration=1024; sizeLength=13; indexLength=3; indexDeltaLength=3
另外，我使用jlibrtp来创建 RTP 数据包并发送它们。
这是服务器-客户端通信日志：
+++++++CLIENT+S++++++++++
OPTIONS rtsp://127.0.0.1:4444/aaa RTSP/1.0
CSeq: 2
User-Agent: LibVLC/2.0.1 (LIVE555 Streaming Media v2011.12.23)
+++++++CLIENT+E++++++++++
+++++++SERVER+S++++++++++
RTSP/1.0 200 OK
CSeq: 2
Public: DESCRIBE, SETUP, TEARDOWN, PLAY, PAUSE
+++++++SERVER+E++++++++++
+++++++CLIENT+S++++++++++
DESCRIBE rtsp://127.0.0.1:4444/aaa RTSP/1.0
CSeq: 3
User-Agent: LibVLC/2.0.1 (LIVE555 Streaming Media v2011.12.23)
Accept: application/sdp
+++++++CLIENT+E++++++++++
+++++++SERVER+S++++++++++
RTSP/1.0 200 OK
CSeq: 3
Content-Type: application/sdp
v=0
o=- 0 0 IN IP4 127.0.0.1
m=video 0 RTP/AVP 96
b=AS:1633
a=rtpmap:96 H264/90000
a=control:trackID=65536
a=fmtp:96 profile-level-id=64001F; packetization-mode=1; sprop-parameter-sets=Z2QAH6zZgFAFuhAAAAMAEAAAAwMg8YMZoA==,aOl7LIs=
a=framesize:96 1280-720
m=audio 0 RTP/AVP 97
b=AS:129
a=rtpmap:97 mpeg4-generic/48000/2
a=control:trackID=65537
a=fmtp:97 profile-level-id=41; config=1190; streamType=5; mode=AAC-hbr; objectType=64; constantDuration=1024; sizeLength=13; indexLength=3; indexDeltaLength=3
+++++++SERVER+E++++++++++
+++++++CLIENT+S++++++++++
SETUP rtsp://127.0.0.1:4444/aaa/trackID=65536 RTSP/1.0
CSeq: 4
User-Agent: LibVLC/2.0.1 (LIVE555 Streaming Media v2011.12.23)
Transport: RTP/AVP;unicast;client_port=59298-59299
+++++++CLIENT+E++++++++++
+++++++SERVER+S++++++++++
RTSP/1.0 200 OK
CSeq: 4
Transport: RTP/AVP;unicast;client_port=59298-59299
Session: 00007689
+++++++SERVER+E++++++++++
+++++++CLIENT+S++++++++++
SETUP rtsp://127.0.0.1:4444/aaa/trackID=65537 RTSP/1.0
CSeq: 5
User-Agent: LibVLC/2.0.1 (LIVE555 Streaming Media v2011.12.23)
Transport: RTP/AVP;unicast;client_port=62520-62521
Session: 00007689
+++++++CLIENT+E++++++++++
+++++++SERVER+S++++++++++
RTSP/1.0 200 OK
CSeq: 5
Transport: RTP/AVP;unicast;client_port=62520-62521
Session: 00007689
+++++++SERVER+E++++++++++
+++++++CLIENT+S++++++++++
PLAY rtsp://127.0.0.1:4444/aaa RTSP/1.0
CSeq: 6
User-Agent: LibVLC/2.0.1 (LIVE555 Streaming Media v2011.12.23)
Session: 00007689
Range: npt=0.000-
+++++++CLIENT+E++++++++++
+++++++SERVER+S++++++++++
RTSP/1.0 200 OK
CSeq: 6
+++++++SERVER+E++++++++++
Streaming...
+++++++CLIENT+S++++++++++
TEARDOWN rtsp://127.0.0.1:4444/aaa RTSP/1.0
CSeq: 7
User-Agent: LibVLC/2.0.1 (LIVE555 Streaming Media v2011.12.23)
Session: 00007689
+++++++CLIENT+E++++++++++
+++++++SERVER+S++++++++++
RTSP/1.0 200 OK
CSeq: 7
+++++++SERVER+E++++++++++
Exception in thread "main" java.net.SocketException: Connection reset
at java.net.SocketInputStream.read(SocketInputStream.java:168)
at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:264)
at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:306)
at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:158)
at java.io.InputStreamReader.read(InputStreamReader.java:167)
at java.io.BufferedReader.fill(BufferedReader.java:136)
at java.io.BufferedReader.readLine(BufferedReader.java:299)
at java.io.BufferedReader.readLine(BufferedReader.java:362)
at com.vtgsoftwares.ekiz.server.RTSPServer.<init>(RTSPServer.java:71)
at com.vtgsoftwares.ekiz.server.RTSPServer.main(RTSPServer.java:80)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
有什么想法吗？
谢谢。