我在Gstreamer的RTSP客户端遇到了一些问题。所以我有一个客户端程序,每当RTSP客户端接收/发送消息或返回错误等时,我都希望它从看门狗功能给出适当的响应,并在出现错误时相应地退出代码。我所做的就是这个,
gst_rtsp_connection_connect
的函数,它接受连接和超时值,并且在文档中声明如果超时为NULL,则此函数可以永久阻塞。所以我虽然因为我在超时字段中放置了NULL,但它永远不会超时并且认为它仍然连接到服务器,因此永远不会进入任何看门狗功能。然而,当我申请时,比如5秒超时,然后它在5-7秒后直接杀死连接并进入一些看门狗功能。即使有正确的连接并且服务器仍在运行,我也不希望我的代码立即发出错误,我只是希望它在服务器实际关闭时出现一些错误,并且已经过了一些超时时间。我该如何解决这个问题?这是我的完整代码,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;
}
答案 0 :(得分:1)
此代码按预期工作。我做错了类型的测试。
我停止的方式&#34; rtsp服务器只是按下&#34;停止&#34; VLC按钮。这不会破坏服务器,服务器仍然存在,只是没有使任何类型的流和客户端仍然连接到服务器没有问题,因为服务器仍然存在。当我关闭VLC而不是销毁服务器时,它会进入正确的看门狗功能。