gstreamer/tests/seeking/seeking1.c

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#include <gst/gst.h>
static gint looping;
static GstEvent *event;
static GstPad *pad;
static void
event_received (GObject *object, GstEvent *event, GstElement *pipeline)
{
if (GST_EVENT_TYPE (event) == GST_EVENT_SEGMENT_DONE) {
g_print ("segment done\n");
if (--looping == 1) {
event = gst_event_new_segment_seek (GST_FORMAT_DEFAULT |
GST_SEEK_METHOD_SET |
GST_SEEK_FLAG_FLUSH, 20, 25);
}
else {
event = gst_event_new_segment_seek (GST_FORMAT_DEFAULT |
GST_SEEK_METHOD_SET |
GST_SEEK_FLAG_FLUSH |
GST_SEEK_FLAG_SEGMENT_LOOP, 50, 55);
}
gst_pad_send_event (pad, event);
}
}
gint
main (gint argc, gchar *argv[])
{
GstElement *pipeline;
GstElement *fakesrc;
GstElement *fakesink;
guint64 value;
GstFormat format;
gst_init (&argc, &argv);
pipeline = gst_pipeline_new ("pipeline");
fakesrc = gst_element_factory_make ("fakesrc", "src");
fakesink = gst_element_factory_make ("fakesink", "sink");
gst_bin_add (GST_BIN (pipeline), fakesrc);
gst_bin_add (GST_BIN (pipeline), fakesink);
gst_element_link_pads (fakesrc, "src", fakesink, "sink");
gst_element_set_state (pipeline, GST_STATE_READY);
pad = gst_element_get_pad (fakesrc, "src");
g_print ("doing segment seek from 5 to 10\n");
gst_pad_send_event (pad,
gst_event_new_segment_seek (GST_FORMAT_DEFAULT |
GST_SEEK_METHOD_SET |
GST_SEEK_FLAG_FLUSH, 5, 10));
format = GST_FORMAT_DEFAULT;
gst_pad_query (pad, GST_QUERY_START, &format, &value);
g_print ("configured for start %" G_GINT64_FORMAT "\n", value);
gst_pad_query (pad, GST_QUERY_SEGMENT_END, &format, &value);
g_print ("configured segment end %" G_GINT64_FORMAT "\n", value);
gst_element_set_state (pipeline, GST_STATE_PLAYING);
g_signal_connect (G_OBJECT (pipeline), "deep_notify", G_CALLBACK (gst_element_default_deep_notify), NULL);
while (gst_bin_iterate (GST_BIN (pipeline)));
g_print ("doing segment seek from 50 to 55 with looping (2 times), then 20 to 25 without looping\n");
looping = 3;
event = gst_event_new_segment_seek (GST_FORMAT_DEFAULT |
GST_SEEK_METHOD_SET |
GST_SEEK_FLAG_FLUSH |
GST_SEEK_FLAG_SEGMENT_LOOP, 50, 55);
gst_pad_send_event (pad, event);
g_signal_connect (G_OBJECT (gst_element_get_pad (fakesink, "sink")), "event_received", G_CALLBACK (event_received), event);
gst_pad_query (pad, GST_QUERY_START, &format, &value);
g_print ("configured for start %" G_GINT64_FORMAT "\n", value);
gst_pad_query (pad, GST_QUERY_SEGMENT_END, &format, &value);
g_print ("configured segment end %" G_GINT64_FORMAT "\n", value);
gst_element_set_state (pipeline, GST_STATE_PLAYING);
while (gst_bin_iterate (GST_BIN (pipeline)));
gst_element_set_state (pipeline, GST_STATE_NULL);
return 0;
}