GStreamer 运行时错误

Question

我尝试运行一个GStreamer教程示例，它以前可以工作，但现在无法工作。我没有更改源代码。我使用CMake构建项目。

我在每个略微不同的测试程序上都遇到以下错误：

(GStreamer_Test_AppSrc:28073): GLib-GObject-CRITICAL **: g_param_spec_boxed: assertion `G_TYPE_IS_BOXED (boxed_type)' failed
(GStreamer_Test_AppSrc:28073): GLib-GObject-CRITICAL **: g_object_class_install_property: assertion `G_IS_PARAM_SPEC (pspec)' failed
(GStreamer_Test_AppSrc:28073): GLib-GObject-WARNING **: gsignal.c:1644: parameter 1 of type `<invalid>' for signal "GstAppSrc::push_buffer" is not a value type
(GStreamer_Test_AppSrc:28073): GLib-GObject-WARNING **: cannot register existing type `GstObject'
(GStreamer_Test_AppSrc:28073): GLib-CRITICAL **: g_once_init_leave: assertion `result != 0' failed
(GStreamer_Test_AppSrc:28073): GLib-GObject-CRITICAL **: g_type_register_static: assertion `parent_type > 0' failed
(GStreamer_Test_AppSrc:28073): GLib-CRITICAL **: g_once_init_leave: assertion `result != 0' failed
(GStreamer_Test_AppSrc:28073): GStreamer-CRITICAL **: gst_element_class_set_static_metadata: assertion `GST_IS_ELEMENT_CLASS (klass)' failed
(GStreamer_Test_AppSrc:28073): GStreamer-CRITICAL **: gst_caps_ref: assertion `GST_CAPS_REFCOUNT_VALUE (caps) > 0' failed
(GStreamer_Test_AppSrc:28073): GStreamer-CRITICAL **: gst_caps_ref: assertion `GST_CAPS_REFCOUNT_VALUE (caps) > 0' failed
(GStreamer_Test_AppSrc:28073): GStreamer-CRITICAL **: gst_caps_unref: assertion `GST_CAPS_REFCOUNT_VALUE (caps) > 0' failed

- Angstgeist

Answer 1

问题是，我安装了GStreamer 0.10.x和1.x，并将两者混合使用。由于CMake记住了一些缓存设置，当我尝试使用GStreamer 1.x编译我的项目时出现问题。在清理CMake项目的外部构建目录并仅使用GStreamer-0.10.x依赖项重新构建项目后，我的程序再次按预期工作。

- Angstgeist