mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-22 17:51:16 +00:00
47 lines
1.6 KiB
C
47 lines
1.6 KiB
C
|
#include <gst/gst.h>
|
||
|
|
|
||
|
|
gboolean state_change(GstElement *element,GstElementState state) {
|
||
|
|
g_print("state_change: element '%s' state set to %d(%s)\n",
|
||
|
|
gst_element_get_name(element),state,_gst_print_statename(state));
|
||
|
|
g_print("state_change: element state is actually %d\n",GST_STATE(element));
|
||
|
|
}
|
||
|
|
|
||
|
|
int main(int argc,char *argv[]) {
|
||
|
|
GstElement *bin;
|
||
|
|
GstElement *src,*sink;
|
||
|
|
|
||
|
|
gst_init(&argc,&argv);
|
||
|
|
|
||
|
|
src = gst_elementfactory_make("fakesrc","src");
|
||
|
|
g_return_val_if_fail(1,src != NULL);
|
||
|
|
sink = gst_elementfactory_make("fakesink","sink");
|
||
|
|
g_return_val_if_fail(1,sink != NULL);
|
||
|
|
bin = gst_bin_new("bin");
|
||
|
|
g_return_val_if_fail(1,bin != NULL);
|
||
|
|
|
||
|
|
gtk_signal_connect(GTK_OBJECT(src),"state_change",
|
||
|
|
GTK_SIGNAL_FUNC(state_change),NULL);
|
||
|
|
gtk_signal_connect(GTK_OBJECT(sink),"state_change",
|
||
|
|
GTK_SIGNAL_FUNC(state_change),NULL);
|
||
|
|
gtk_signal_connect(GTK_OBJECT(bin),"state_change",
|
||
|
|
GTK_SIGNAL_FUNC(state_change),NULL);
|
||
|
|
|
||
|
|
g_print("element '%s' starts at state %d(%s)\n",gst_element_get_name(src),
|
||
|
|
GST_STATE(src),_gst_print_statename(GST_STATE(src)));
|
||
|
|
g_print("element '%s' starts at state %d(%s)\n",gst_element_get_name(sink),
|
||
|
|
GST_STATE(sink),_gst_print_statename(GST_STATE(sink)));
|
||
|
|
g_print("element '%s' starts at state %d(%s)\n",gst_element_get_name(bin),
|
||
|
|
GST_STATE(bin),_gst_print_statename(GST_STATE(bin)));
|
||
|
|
|
||
|
|
gst_bin_add(GST_BIN(bin),src);
|
||
|
|
gst_bin_add(GST_BIN(bin),sink);
|
||
|
|
|
||
|
|
gst_pad_connect(gst_element_get_pad(src,"src"),
|
||
|
|
gst_element_get_pad(sink,"sink"));
|
||
|
|
|
||
|
|
gst_bin_create_plan(bin);
|
||
|
|
gst_element_set_state(bin,GST_STATE_PLAYING);
|
||
|
|
|
||
|
|
gst_bin_iterate(bin);
|
||
|
|
}
|