【发布时间】:2016-08-08 15:56:06
【问题描述】:
我正在尝试在 localhost 上测试 udp 流,但它没有显示任何内容:
videotestsrc(或audiotestsrc)-> udpsink(端口:5078,主机:127.0.0.1)
代码如下:
console_out_inf("TESTING", "Starting work with test elements");
gint port = 5078;
// TEST PIPELINE OUT
gst_bin_add_many(GST_BIN(GSD->pipetest_out), GSD->testsrc, GSD->udpsink, NULL);
gchar* host = "127.0.0.1";
g_object_set(GSD->udpsink, "port", port, NULL);
g_object_set(GSD->udpsink, "host", host, NULL);
if (!gst_element_link(GSD->testsrc, GSD->udpsink))
console_out_bad("STREAMING", "Error linking test udp elements -- SEND");
else
console_out_yes("STREAMING", "Correctly linked test udp elements -- SEND");
// TEST PIPELINE IN
gst_bin_add_many(GST_BIN(GSD->pipetest_in), GSD->udpsrc, GSD->autovideosink, NULL);
gst_element_set_state(GSD->udpsrc, GST_STATE_NULL);
g_object_set(GSD->udpsrc, "port", port, NULL);
if (!gst_element_link(GSD->udpsrc, GSD->autovideosink))
console_out_bad("STREAMING", "Error linking test udp elements -- RECEIVE");
else
console_out_yes("STREAMING", "Correctly linked test udp elements -- RECEIVE");
// PLAY TEST PIPELINE OUT
GstStateChangeReturn ret1;
ret1 = gst_element_set_state(GSD->pipetest_out, GST_STATE_PLAYING);
if (ret1 == GST_STATE_CHANGE_FAILURE)
console_out_bad("TESTING", "Failed playing pipetest out");
else
console_out_yes("TESTING", "Correctly played pipetest out");
// PLAY TEST PIPELINE IN
GstStateChangeReturn ret2;
ret2 = gst_element_set_state(GSD->pipetest_in, GST_STATE_PLAYING);
if (ret2 == GST_STATE_CHANGE_FAILURE)
console_out_bad("TESTING", "Failed playing pipetest in");
else
console_out_yes("TESTING", "Correctly played pipetest in");
// PRINT PIPELINES
GST_DEBUG_BIN_TO_DOT_FILE(GST_BIN(GSD->pipetest_out), GST_DEBUG_GRAPH_SHOW_ALL, "pipetest_out");
GST_DEBUG_BIN_TO_DOT_FILE(GST_BIN(GSD->pipetest_in), GST_DEBUG_GRAPH_SHOW_ALL, "pipetest_in");
这是“我自己的控制台输出”:
编辑:不再相关!一切都很好,管道是正确构建的,但是
管道输出:videotestsrc --> udpsink(主机:127.0.0.1,端口:5078)
管道输入:udpsrc(端口:5078)--> autovideosink
自动视频接收器不显示任何内容! 通过检查 netstat -a,该端口上没有显示连接。
附加信息:
- 使用“gstreamer 调试”生成的图表当然只包含连接到 udpsink 的视频/音频 testsrc 元素。
- 我第一次运行该代码时,出现了“Windows 防火墙窗口”,所以我猜想正在发送/接收一些东西。
- 这是在 Visual Studio 2013/Qt5 插件项目中,但这应该不是问题
有谁知道我做错了什么?
【问题讨论】: