P2 = g_object_new (TEST_TYPE_BASE, NULL); g_object_unref (P); g_object_unref(P1); g_object_unref(P2); return 0; } gpointer g_object_new (GType object_type, const gchar *first_property_name, ...) 这个函数是个可变参数的函数, 第一个参数是需要创建的对象的类型, 当使用 g_object...
当引用计数减为0时,g_object_unref还将调用析构函数释放对象。 弱引用 弱引用通常用来监视对象的析构,通过g_object_weak_ref添加一个在对象析构时被调用的监控回调函数,这样就可以在不调用g_object_ref的情况下安全的保存一个对象的指针。 void g_object_weak_ref(GObject *object,// 需要建立弱引用的GObject...
#defineFOO_TYPE_OBJECT(foo_object_get_type()) #defineFOO_OBJECT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj),FOO_TYPE_OBJECT,FooObject)) #defineFOO_OBJECT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass),FOO_TYPE_OBJECT,FooObjectClass)) #defineFOO_IS_OBJECT(obj) (G_TYPE_CHECK_INSTANCE_TYP...
gst_bin_add_many(GST_BIN(pipeline), v4l2src, videoconvert, queue, vp8enc, rtpvp8pay, webrtcbin, NULL); if (!gst_element_link_many(v4l2src, videoconvert, queue, vp8enc, rtpvp8pay, NULL)) { g_printerr("Elements could not be linked.\n"); gst_object_unref(pipeline); return; } Gst...
gst_object_unref(pipeline)。 pipeline = NULL; } pipeline = gst_parse_launch("playbin urihttps://commondatastorage.googleapis.com/codeskulptor-demos/DDR_assets/Sevish_-__nbsp_.mp3", NULL); gst_element_set_state(pipeline, GST_STATE_PLAYING)。
("Elements could not be linked.\n");gst_object_unref(data.pipeline);return-1;}/* Set the URI to play */g_object_set(data.source,"uri","https://www.freedesktop.org/software/gstreamer-sdk/data/media/sintel_trailer-480p.webm",NULL);/* Connect to the pad-added signal */g_signal_...
("autoaudiosink","audiosink");// 设置音频接收器的属性g_object_set(audiosink,"volume",1.0,NULL);// 设置音量为 100%// 将接收器添加到管道中gst_bin_add(GST_BIN(pipeline),audiosink);// 开始播放(略)// gst_element_set_state(pipeline, GST_STATE_PLAYING);// 清理gst_object_unref(pipeline...
g_object_set(capsfilter, "caps", caps, NULL); gst_caps_unref(caps); 这里我们将视频的分辨率设置为VGA。这一步不是必须的,但我的很多工作都涉及VGA分辨率。请随意跳过这部分,或尝试使用不同的分辨率等。在设置了上限之后,我们就不再需要上限了,所以它是不需要的。
_object_init(MyObject *self) { /* 初始化对象的成员变量 */ self->custom_data = 0; } int main() { /* 创建对象实例 */ MyObject *obj = g_object_new(MY_TYPE_OBJECT, NULL); /* 调用自定义方法 */ MY_OBJECT_GET_CLASS(obj)->custom_method(obj); /* 销毁对象 */ g_object_unr...
ENMemory leaks are a class of bugs where memory is not released even after it is no longer ...