Gstreamer:gst_element_factory_make():总是失败并返回NULL:Qt5 [英] Gstreamer : gst_element_factory_make() : always fail and return NULL : Qt5
问题描述
我的问题是，我无法创建Gstreamer元素.
我正在使用Qt 5.2.1
My problem is, I cannot create Gstreamer element.
I am creating Gstreamer project using Qt 5.2.1
我在做什么:
gst_init( NULL, NULL );
GstElement *m_pipeline = gst_pipeline_new ("pipeline1");
GstElement *m_rtspSrc = gst_element_factory_make("rtspsrc", "MyRtspSrc");
但是 gst_element_factory_make 总是返回 NULL .
But gst_element_factory_make always return NULL.
我已验证的内容:
- 检查共享对象是否在$(libdir)/gstreamer-0.10/中. (在那里).
-
gst-inspect-0.10 rtspsrc. (它提供了插件的详细信息). - gst-launch-0.10 fakesrc！ my_all_plugin！假水槽(效果很好).
- Checked if shared object is in $(libdir)/gstreamer-0.10/. (It is there).
gst-inspect-0.10 rtspsrc. (Its gives details of the plugin).- gst-launch-0.10 fakesrc ! my_all_plugin ! fakesink (Its works fine).
我也尝试了替代方法:
GstElementFactory *factory = gst_element_factory_find ("rtspsrc");
if(factory)
GstElement *m_rtspSrc = gst_element_factory_create (factory, "MyRtspSrc");
GstElementFactory *factory = gst_element_factory_find ("rtspsrc");
if(factory)
GstElement *m_rtspSrc = gst_element_factory_create (factory, "MyRtspSrc");
但是， gst_element_factory_find 找不到 rtspsrc .
But, gst_element_factory_find can not find rtspsrc.
请帮助我解决这个问题.
Please help me out from this problem.
我也用谷歌搜索.但是找不到任何解决方案. 我也参考了几篇StackOverflow文章.
I have also google it. But can not find any solution. I have refer few StackOverflow articles too.
与 GStreamer gst_element_factory_make失败类似，但仍然存在问题
Like GStreamer gst_element_factory_make fails and many more, but still have the issue.
非常感谢Advance.
Many many thanks in Advance.
推荐答案
尝试制作其他元素，看看是否可行，例如:
Try to make a different element and see if that works, e.g.:
gst_element_factory_make("fakesrc", NULL);
如果该操作也失败，则可能是您的环境未正确设置.您可以尝试将环境变量GST_PLUGIN_PATH设置到包含gstreamer插件的目录中.
If that also fails then it is likely your environment is not set up correctly. You can try setting the environment variable GST_PLUGIN_PATH to the directory containing your gstreamer plugins.
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