8148 8168 中移植live55 出现except rtsp 中途莫名的断流

　　在解码中,接了浙江宇视的ipc相机,解码一般就挂了,vlc 也是中途断流.费解?

vlc异常信息如下:

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

direct3d warning: trying surface pixel format: YV12

main error: Failed to resize display

main error: ES_OUT_SET_(GROUP_)PCR is called too late (pts_delay increased to 600 ms)

main error: ES_OUT_RESET_PCR called

live555 warning: no data received in 10s, eof ?

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

packetizer_h264 warning: waiting for SPS/PPS

direct3d warning: trying surface pixel format: YV12

main error: Failed to resize display

main error: ES_OUT_SET_(GROUP_)PCR is called too late (pts_delay increased to 600 ms)

main error: ES_OUT_RESET_PCR called

live555 warning: no data received in 10s, eof ?

相机类型型号:

http://www.uniview.com/Products/Cameras/Box/#~series0

百度了下,网友中有分析说是两个方面的问题,1pts 解码显示太慢,2是两系统时钟突变时间戳对不上号.我猜,呵呵,有可能是加了私有协议

更新：后面和常熟的顾哥网友聊聊发现他也遇到过类似情况，也还没解决，有两种情况一个是有些相机确实会断流，另外一种情况是live555里面貌似有bug 导致teardown

rtsp的 默认端口地址是：

address = *(addresses.firstAddress());

portNum = 554; // default value

2015-1-7 貌似有网友出现过这种情况：

在基于TI DM8168 平台上移植live555  进行视频直播，DM8168采集的后的图像，经M3_video编码为H264视频流(编码后也是一帧一帧的数据)，碰到以下问题：
    (1): 问题: 
          用VLC作为RTSP客户端连接DM8168, 只能播放开始几帧，之后画面变乱，并无法播放;
    (2): 原因:
          H264编码后的帧只有第一帧是IDR帧，之后没有IDR帧.
    (3): 解决办法:
          修改DM8168建立encode link时的参数，以便周期的产生IDR帧：

1. encPrm.chCreateParams.defaultDynamicParams.intraFrameInterval = 25;
2. encPrm.chCreateParams.encodingPreset = XDM_USER_DEFINED;

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(1): 问题
         用科达NVR作为客户端连接DM8168，发现NVR的视频画面和录像会出现停止，并且提示“前端
         掉线”的告警，过了1分钟后又开始正常显示和录像.
  (2): 原因
        在liveMedia/RTSPServer.cpp中将DEBUG宏打开，跟踪NVR整个连接过程，结果发现如下信息：

1. RTSP client session (id "555C5F62", stream name "id1") has timed out (due to inactivity)

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而正常的连接打印为：

1. RTSP client session (id "023C11D5", stream name "id1"): Liveness indication
2. RTSP client session (id "023C11D5", stream name "id1"): Liveness indication

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意思就是一旦RTSP的客户端连接成功后，需要周期的想服务端发送心跳包，如果超过某个设定的时间，
       RTSP 服务端则会主动关闭这个客户端的连接，因此导致科达的NVR被关闭，之后又重新连接，因此导致
       视频显示和画面中断又继续。
   (3): 解决办法：
          调整RTSP服务端的超时时间值:fReclamationTestSeconds,而这个值在
         liveMedia/include/RTSPServer.hh有初始值：

1. static RTSPServer* createNew(UsageEnvironment& env, Port ourPort = 554,
2. UserAuthenticationDatabase* authDatabase = NULL,
3. unsigned reclamationTestSeconds = 65);

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在构造函数createNew的实现中，在初始化参数列表亦可以进行修改，

1. RTSPServer::RTSPServer(UsageEnvironment& env,
2. int ourSocket, Port ourPort,
3. UserAuthenticationDatabase* authDatabase,
4. unsigned reclamationTestSeconds): Medium(env), ............... fReclamationTestSeconds(reclamationTestSeconds)

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因此，在自己的应用程序创建 RTSPServer的时候，修改这个值：

1. // Create the RTSP server:
2. RTSPServer* rtspServer = RTSPServer::createNew(*env, 8554, authDB, 100);

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http://kuafu80.blog.163.com/blog/static/122647180201391193917936/

http://www.61icbbs.com/forum.php?mod=viewthread&tid=9810

http://kuafu80.blog.163.com/blog/static/122647180201391193917936/

http://www.asmag.com.cn/test/show/69661.html

http://zhidao.baidu.com/link?url=ukgA8J5O7-8z-7eZTX1NCzBGm5S_tIh2S9FseCveXx7oTcdVLX210REu7QUc0Whxdd52N5YSKcxUr__NLYDKV-ZTsIO7hI9CB50x-bP41By

http://bbs.csdn.net/topics/390698320

http://www.gzlilin.com.cn/article.aspx?a=839

http://www.asmag.com.cn/test/show/69661.html

问题还没解决!!!