尝试定义 Gobject 样板时出现问题

Question

我试图创建一个新类，但出现错误

error: ‘OnvifFactory’ was not declared in this scope
G_DEFINE_TYPE (OnvifFactory, onvif_factory, GST_TYPE_RTSP_MEDIA_FACTORY);

这是我的代码。

struct _OnvifFactory
{
  GstRTSPEOnvifMediaFactory parent;
};

G_DEFINE_TYPE (OnvifFactory, onvif_factory, GST_TYPE_RTSP_MEDIA_FACTORY);

static void
onvif_factory_class_init (OnvifFactoryClass * klass)
{
  GstRTSPMediaFactoryClass *mf_class = GST_RTSP_MEDIA_FACTORY_CLASS (klass);
}

static void
onvif_factory_init (OnvifFactory * factory)
{
}

static GstRTSPMediaFactory *
onvif_factory_new (void)
{
  GstRTSPMediaFactory *result;

  result =
      GST_RTSP_MEDIA_FACTORY (g_object_new (onvif_factory_get_type (), NULL));

  return result;
}

试图创建一个空模板，我可以从中慢慢填充更多功能。然而我的模板似乎也有错误

问候

Answer 1

您在结构定义上方缺少 typedef struct _OnvifFactory OnvifFactory; 。