我有一些问题,Gstreamer的RTSP客户端。因此,我有一个客户端程序,我希望它在RTSP客户端接收/发送消息或返回错误等情况下,从监视狗函数中给我适当的响应,并在出现错误时退出代码。所以我要做的是
gst_rtsp_connection_connect的函数,它接受一个连接和一个超时值,并且在文档中指出,如果超时为NULL,则该函数可以永远阻塞。所以我想,由于我在超时值字段中放置NULL,所以它从不超时,并且相信它仍然连接到服务器,因此永远不会进入任何一个监视狗函数。然而,当我申请的时候,比如说5秒的超时,它会在5-7秒后直接关闭连接,然后进入一些监视狗的函数。我不希望我的代码立即出现错误,即使有一个正确的连接,而且服务器仍然在工作,我只是希望它在服务器实际关闭并且超时时间已经过去时给出一些错误。我怎么才能解决这个问题?下面是我的完整代码,包含和库位于代码的顶部:
/*
* INCLUDES
* /usr/include/gstreamer-1.0
* /usr/include/glib-2.0
* /usr/lib/x86_64-linux-gnu/glib-2.0/include
* /usr/include/gstreamer-1.0/gst/rtsp
*
* LIBRARIES
* gstreamer-1.0
* gstrtsp-1.0
* gobject-2.0
* glib-2.0
*
* MISC.
* -std=c99
*
*
*
* */
#include <gst/gst.h>
#include <gst/rtsp-server/rtsp-server.h>
#include <gst/rtsp/gstrtspmessage.h>
#include <gst/rtsp/gstrtspurl.h>
#include <gst/rtsp/gstrtspdefs.h>
#include <gst/rtsp/gstrtsptransport.h>
#include <gst/rtsp/gstrtspconnection.h>
#include <stdlib.h>
#include <stdio.h>
#include <glib.h>
static GstRTSPStatusCode
tunnel_start (GstRTSPWatch * watch, gpointer user_data)
{
g_print("tunnel_start\n");
return GST_RTSP_STS_OK;
}
static GstRTSPResult
tunnel_complete (GstRTSPWatch * watch, gpointer user_data)
{
g_print("tunnel_complete\n");
return GST_RTSP_OK;
}
static GstRTSPResult
tunnel_lost (GstRTSPWatch * watch, gpointer user_data)
{
g_print("tunnel_lost\n");
return GST_RTSP_OK;
}
static GstRTSPResult
closed (GstRTSPWatch * watch, gpointer user_data)
{
g_print("closed\n");
return GST_RTSP_OK;
}
static GstRTSPResult
message_sent (GstRTSPWatch * watch, guint id, gpointer user_data)
{
g_print("message_sent\n");
return GST_RTSP_OK;
}
static GstRTSPResult
message_received (GstRTSPWatch *watch, GstRTSPMessage *message, gpointer user_data) {
g_print("message_received\n");
return GST_RTSP_OK;
}
static GstRTSPResult
error (GstRTSPWatch *watch, GstRTSPResult result, gpointer user_data) {
g_print("error\n");
return GST_RTSP_OK;
}
static GstRTSPResult
error_full (GstRTSPWatch *watch, GstRTSPResult result, GstRTSPMessage *message, guint id, gpointer user_data) {
g_print("error_full\n");
return GST_RTSP_OK;
}
static GstRTSPWatchFuncs watch_funcs = {
message_received,
message_sent,
closed,
error,
tunnel_start,
tunnel_complete,
error_full,
tunnel_lost
};
/* main method */
int main (int argc, char *argv[]) {
GMainLoop *loop;
loop = g_main_loop_new (NULL, FALSE);
GstRTSPUrl *url = NULL;
GstRTSPConnection *conn = NULL;
GstRTSPResult res;
GstRTSPWatch *watch;
GTimeVal *timeout;
timeout->tv_sec = 5;
timeout->tv_usec = 5000000;
res = gst_rtsp_url_parse ("rtsp://localhost:5000/test", &url);
res = gst_rtsp_connection_create (url, &conn);
if (res == GST_RTSP_OK) {
g_print("Connection created.\n");
}
res = gst_rtsp_connection_connect (conn, timeout);
if (res == GST_RTSP_OK) {
g_print("Connection connected.\n");
} else {
g_printerr("Connection not connected. Exiting with code 500.\n");
exit(500);
}
watch = gst_rtsp_watch_new (conn, &watch_funcs, loop, NULL);
if (watch == NULL) {
g_print("Failed to create watch.\n");
}
gst_rtsp_watch_attach (watch, NULL);
gst_rtsp_url_free (url);
g_main_loop_run (loop);
return 0;
}发布于 2016-05-27 19:53:25
此代码正在按预期工作。我做错了测试。
我“停止”rtsp服务器的方式只是按VLC的“停止”按钮。这不会破坏服务器,服务器仍然存在,只是没有产生任何类型的流,而且由于服务器仍然存在,客户端仍然没有问题地连接到服务器上。当我关闭VLC以破坏服务器时,它就进入了正确的监视狗功能。
https://stackoverflow.com/questions/37462119
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