Question

我正在尝试使用libvlc库在我的gtk + app中运行一个流。我测试了单独运行流并完美运行：

// gcc -o gtk_player gtk_player.c `pkg-config --libs gtk+-2.0 libvlc` `pkg~-config --cflags gtk+-2.0 libvlc`

/* License WTFPL http://sam.zoy.org/wtfpl/ */
/* Written by Vincent SchÃ¼ÃŸler */

#include <stdlib.h>
#include <gtk/gtk.h>
#include <gdk/gdkx.h>
#include <vlc/vlc.h>
#include <X11/Xlib.h>

#define BORDER_WIDTH 6

void destroy(GtkWidget *widget, gpointer data);
void player_widget_on_realize(GtkWidget *widget, gpointer data);


libvlc_media_player_t *media_player;
libvlc_instance_t *vlc_inst;
GtkWidget *playpause_button;

void destroy(GtkWidget *widget, gpointer data) {
    gtk_main_quit();
}

void player_widget_on_realize(GtkWidget *widget, gpointer data) {
    libvlc_media_player_set_xwindow(media_player, 
GDK_WINDOW_XID(gtk_widget_get_window(widget)));
}
int main( int argc, char *argv[] ) {
GtkWidget *window,
          *vbox,
          *menubar,
          *filemenu,
          *fileitem,
          *filemenu_openitem,
          *player_widget,
          *hbuttonbox,
          *stop_button;
libvlc_media_player_t *mp;
libvlc_media_t *m;
gtk_init (&argc, &argv);
// setup window
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_window_set_default_size(GTK_WINDOW(window), 400, 300);
g_signal_connect(window, "destroy", G_CALLBACK(destroy), NULL);
gtk_container_set_border_width (GTK_CONTAINER (window), 0);
gtk_window_set_title(GTK_WINDOW(window), "GTK+ libVLC Demo");

//setup vbox
vbox = gtk_vbox_new(FALSE, 0);
gtk_container_add(GTK_CONTAINER(window), vbox);

//setup menu


//setup player widget
player_widget = gtk_drawing_area_new();
gtk_box_pack_start(GTK_BOX(vbox), player_widget, TRUE, TRUE, 0);

//setup controls
//playpause_button = gtk_button_new_from_stock(GTK_STOCK_MEDIA_PLAY);


//setup vlc

vlc_inst = libvlc_new(0,"NULL");
m = libvlc_media_new_location (vlc_inst, "rtsp://192.168.1.64:554/Streaming/Channels/101/?transportmode=unicast");
media_player = libvlc_media_player_new_from_media(m);

XInitThreads();
/* play the media_player */
 libvlc_media_player_play (media_player);

g_signal_connect(G_OBJECT(player_widget), "realize", G_CALLBACK(player_widget_on_realize), NULL);

gtk_widget_show_all(window);
gtk_main ();

libvlc_media_player_release(media_player);
libvlc_release(vlc_inst);
return 0;
}

现在我在我的应用程序中插入此代码，但只显示一个图像，如果相机和流停止..

更新：在我的应用程序中，我在实现绘图区域时进行回调并编写此功能：

void on_video_window_realize(GtkWidget *widget, gpointer data) {
    libvlc_media_t *m;
    libvlc_instance_t *vlc_inst;

    vlc_inst = libvlc_new(0,NULL);
    m = libvlc_media_new_location (vlc_inst, "rtsp://192.168.1.64:554/Streaming/Channels/101/?transportmode=unicast");
    media_player = libvlc_media_player_new_from_media(m);

    libvlc_media_player_play (media_player);
    libvlc_media_player_set_xwindow(media_player, GDK_WINDOW_XID(gtk_widget_get_window(widget)));
    gtk_widget_show_all(gtk_widget_get_window(widget));
}

libvlc不会嵌入我的应用

0 个答案: