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它尝试运行 GStreamer 教程示例，该示例已经有效，但现在不再有效。我没有更改源代码。我用 CMake 构建项目。

我的每个测试程序都出现以下错误，它们彼此略有不同：

(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
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1 回答 1

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问题是，我已经安装了 GStreamer 0.10.x 和 1.x 并分别将 CMake 混合在一起。

当我尝试使用 GStreamer 1.x 编译我的项目时，CMake 记住了一些缓存设置。在清理 CMake-Project 的 Out-of-Source 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。

于 2013-07-08T07:20:13.877 回答