mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-04 23:46:43 +00:00
149 lines
3.2 KiB
C
149 lines
3.2 KiB
C
/*
|
|
* position-formats.c
|
|
*
|
|
* we mostly use GST_FORMAT_TIME in queries and seeks. Test the other ones to
|
|
* know what works and what not.
|
|
*/
|
|
|
|
#include <gst/gst.h>
|
|
|
|
#include <stdio.h>
|
|
|
|
static gboolean
|
|
bus_message (GstBus * bus, GstMessage * message, gpointer user_data)
|
|
{
|
|
GMainLoop *loop = (GMainLoop *) user_data;
|
|
|
|
switch (GST_MESSAGE_TYPE (message)) {
|
|
case GST_MESSAGE_ERROR:
|
|
{
|
|
GError *gerror;
|
|
gchar *debug;
|
|
|
|
gst_message_parse_error (message, &gerror, &debug);
|
|
gst_object_default_error (GST_MESSAGE_SRC (message), gerror, debug);
|
|
g_error_free (gerror);
|
|
g_free (debug);
|
|
|
|
g_main_loop_quit (loop);
|
|
break;
|
|
}
|
|
case GST_MESSAGE_WARNING:
|
|
{
|
|
GError *gerror;
|
|
gchar *debug;
|
|
|
|
gst_message_parse_warning (message, &gerror, &debug);
|
|
gst_object_default_error (GST_MESSAGE_SRC (message), gerror, debug);
|
|
g_error_free (gerror);
|
|
g_free (debug);
|
|
|
|
g_main_loop_quit (loop);
|
|
break;
|
|
}
|
|
case GST_MESSAGE_EOS:
|
|
g_main_loop_quit (loop);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
print_value (gboolean res, GstFormat fmt, gint64 val)
|
|
{
|
|
if (res) {
|
|
switch (fmt) {
|
|
case GST_FORMAT_TIME:
|
|
printf ("%" GST_TIME_FORMAT, GST_TIME_ARGS (val));
|
|
break;
|
|
case GST_FORMAT_PERCENT:
|
|
printf ("%8.4lf%%", (gdouble) val / GST_FORMAT_PERCENT_SCALE);
|
|
break;
|
|
case GST_FORMAT_DEFAULT:
|
|
case GST_FORMAT_BYTES:
|
|
case GST_FORMAT_BUFFERS:
|
|
default:
|
|
printf ("%" G_GINT64_FORMAT, val);
|
|
break;
|
|
}
|
|
} else {
|
|
printf ("-");
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
run_queries (gpointer user_data)
|
|
{
|
|
GstElement *bin = (GstElement *) user_data;
|
|
GstFormat i, fmt;
|
|
gint64 pos, dur;
|
|
gboolean pres, dres;
|
|
|
|
for (i = GST_FORMAT_DEFAULT; i <= GST_FORMAT_PERCENT; i++) {
|
|
fmt = i;
|
|
pres = gst_element_query_position (bin, fmt, &pos);
|
|
fmt = i;
|
|
dres = gst_element_query_duration (bin, fmt, &dur);
|
|
printf ("%-8s : ", gst_format_get_name (i));
|
|
print_value (pres, fmt, pos);
|
|
printf (" / ");
|
|
print_value (dres, fmt, dur);
|
|
printf ("\n");
|
|
}
|
|
printf ("\n");
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
gint
|
|
main (gint argc, gchar ** argv)
|
|
{
|
|
gint res = 1;
|
|
GstElement *bin;
|
|
GstBus *bus;
|
|
GMainLoop *loop;
|
|
const gchar *uri;
|
|
|
|
gst_init (&argc, &argv);
|
|
|
|
if (argc < 2) {
|
|
printf ("Usage: %s <uri>\n", argv[0]);
|
|
goto Error;
|
|
}
|
|
uri = argv[1];
|
|
|
|
/* build pipeline */
|
|
bin = gst_element_factory_make ("playbin", NULL);
|
|
if (!bin) {
|
|
GST_WARNING ("need playbin from gst-plugins-base");
|
|
goto Error;
|
|
}
|
|
|
|
g_object_set (bin, "uri", uri, NULL);
|
|
|
|
loop = g_main_loop_new (NULL, TRUE);
|
|
|
|
/* add watch for messages */
|
|
bus = gst_pipeline_get_bus (GST_PIPELINE (bin));
|
|
gst_bus_add_watch (bus, (GstBusFunc) bus_message, (gpointer) loop);
|
|
gst_object_unref (bus);
|
|
|
|
/* add timeout for queries */
|
|
g_timeout_add_seconds (1, (GSourceFunc) run_queries, (gpointer) bin);
|
|
|
|
/* run the show */
|
|
if (gst_element_set_state (bin,
|
|
GST_STATE_PLAYING) != GST_STATE_CHANGE_FAILURE) {
|
|
g_main_loop_run (loop);
|
|
gst_element_set_state (bin, GST_STATE_NULL);
|
|
}
|
|
|
|
/* cleanup */
|
|
g_main_loop_unref (loop);
|
|
gst_object_unref (G_OBJECT (bin));
|
|
res = 0;
|
|
Error:
|
|
return (res);
|
|
}
|