GStreamer 插件 Sample

我編寫了類似類型的"採樣"Gstreamer插件和Gstreamer應用程序來測試插件。 希望它能幫助你並回答你的問題：)

Gstreamer插件代碼：-

頭文件：

typedef struct _test
{
 gchar *filename;
 guint width;
 guint height;
}TEST;

struct _GstSample 
{
 GstElement element;
 GstPad *src;
 GstPad *sink;
#ifndef STRUCTURE 
 gchar *filename;
 guint width;
 guint height;
#else
 TEST *test;
#endif 
 gboolean test_arg;
};

C 文件

gst_sample_class_init(GstSampleClass *klass)
{
. . ..
 g_object_class_install_property(gobject_class, PROP_TEST,
 g_param_spec_pointer("test","test","Structure Testing", G_PARAM_READWRITE));
}

gst_sample_set_property()
{
. . .
 case PROP_TEST:
 sample->test = (TEST *) g_value_get_pointer(value);
 g_print("Struct filename:%s t width:%u t height:%u n", 
 sample->test->filename,
 sample->test->width, 
 sample->test->height);
}

gst_sample_get_property()
{
. . .
 case PROP_TEST:
 g_value_set_pointer(value, sample->test);
 break;
}

Gstreamer應用程序代碼：-

typedef struct _test
{
 gchar *filename;
 guint width;
 guint height;
}TEST;

main()
{
. . .
 TEST test, *test1;

 test.filename ="Structure";
 test.width = 14;
 test.height = 50;
 g_object_set(G_OBJECT(sample),"test", &test, NULL); 
. . .
 g_object_get(G_OBJECT(sample),"test", &test1, NULL);
 g_print("Struct Addr:%p t filename:%s t width:%u t height:%u n",
 &test1, test1->filename, test1->width, test1->height); 
}