gstreamer/testsuite/caps/value_intersect.c

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C
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#include <gst/gst.h>
void test1(void)
{
GValue dest = { 0 };
GValue src1 = { 0 };
GValue src2 = { 0 };
gboolean ret;
g_value_init(&src1, G_TYPE_INT);
g_value_set_int(&src1, 10);
g_value_init(&src2, G_TYPE_INT);
g_value_set_int(&src1, 20);
ret = gst_value_intersect(&dest, &src1, &src2);
g_assert(ret == 0);
g_print("ret = %d\n",ret);
}
void test2(void)
{
GValue dest = { 0 };
GValue src1 = { 0 };
GValue src2 = { 0 };
GValue item = { 0 };
gboolean ret;
g_value_init(&src1, GST_TYPE_FOURCC);
gst_value_set_fourcc(&src1, GST_MAKE_FOURCC('Y','U','Y','2'));
g_value_init(&src2, GST_TYPE_LIST);
g_value_init(&item, GST_TYPE_FOURCC);
gst_value_set_fourcc(&item, GST_MAKE_FOURCC('Y','U','Y','2'));
gst_value_list_append_value (&src2, &item);
gst_value_set_fourcc(&item, GST_MAKE_FOURCC('I','4','2','0'));
gst_value_list_append_value (&src2, &item);
gst_value_set_fourcc(&item, GST_MAKE_FOURCC('A','B','C','D'));
gst_value_list_append_value (&src2, &item);
ret = gst_value_intersect(&dest, &src1, &src2);
g_print("ret = %d\n",ret);
g_print("type = %s\n", g_type_name(G_VALUE_TYPE(&dest)));
g_print("value = %s\n", g_strdup_value_contents(&dest));
}
int main(int argc, char *argv[])
{
gst_init(&argc, &argv);
test1();
test2();
return 0;
}