Commit 84f95ae2 authored by Stefan Kost's avatar Stefan Kost Committed by Tim-Philipp Müller

Replace the switch plugin with the selector plugin. Add output-selector as the...

Replace the switch plugin with the selector plugin. Add output-selector as the opposite of input-selector (was switc...

Original commit message from CVS:
* docs/plugins/
* docs/plugins/gst-plugins-bad-plugins-docs.sgml:
* docs/plugins/gst-plugins-bad-plugins-sections.txt:
* docs/plugins/gst-plugins-bad-plugins.args:
* docs/plugins/gst-plugins-bad-plugins.hierarchy:
* docs/plugins/gst-plugins-bad-plugins.interfaces:
* docs/plugins/gst-plugins-bad-plugins.signals:
* docs/plugins/inspect/plugin-metadata.xml:
* docs/plugins/inspect/plugin-selector.xml:
* docs/plugins/inspect/plugin-soundtouch.xml:
* docs/plugins/inspect/plugin-switch.xml:
* gst/selector/.cvsignore:
* gst/selector/
* gst/selector/gstinputselector.c:
* gst/selector/gstinputselector.h:
* gst/selector/gstoutputselector.c:
* gst/selector/gstoutputselector.h:
* gst/selector/gstselector-marshal.list:
* gst/selector/gstselector.c:
* gst/selector/selector.vcproj:
* gst/switch/.cvsignore:
* gst/switch/
* gst/switch/gstswitch-marshal.list:
* gst/switch/gstswitch.c:
* gst/switch/gstswitch.h:
* gst/switch/switch.vcproj:
* tests/icles/.cvsignore:
* tests/icles/
* tests/icles/output-selector-test.c:
Replace the switch plugin with the selector plugin. Add output-
selector as the opposite of input-selectoo (was switch). Add a test
for output-selector. Add docs for the elements. The vcproj needs
update. Fixes #500142.
parent 678753b3
#include <gst/gst.h>
//[.. my_bus_callback goes here ..]
static GMainLoop *loop;
static gboolean
my_bus_callback (GstBus * bus, GstMessage * message, gpointer data)
g_print ("Got %s message\n", GST_MESSAGE_TYPE_NAME (message));
switch (GST_MESSAGE_TYPE (message)) {
GError *err;
gchar *debug;
gst_message_parse_error (message, &err, &debug);
g_print ("Error: %s\n", err->message);
g_error_free (err);
g_free (debug);
g_main_loop_quit (loop);
/* end-of-stream */
g_main_loop_quit (loop);
/* unhandled message */
/* we want to be notified again the next time there is a message
* on the bus, so returning TRUE (FALSE means we want to stop watching
* for messages on the bus and our callback should not be called again)
return TRUE;
static gboolean
switch_cb (gpointer user_data)
GstElement *sel = GST_ELEMENT (user_data);
gchar *old_pad_name, *new_pad_name;
g_object_get (G_OBJECT (sel), "active-pad", &old_pad_name, NULL);
if (g_str_equal (old_pad_name, "src0"))
new_pad_name = "src1";
new_pad_name = "src0";
g_object_set (G_OBJECT (sel), "active-pad", new_pad_name, NULL);
g_print ("switched from %s to %s\n", old_pad_name, new_pad_name);
g_free (old_pad_name);
return TRUE;
main (gint argc, gchar * argv[])
GstElement *pipeline, *src, *toverlay, *osel, *sink1, *sink2, *convert;
GstPad *osel_src1, *osel_src2, *sinkpad;
GstBus *bus;
/* init GStreamer */
gst_init (&argc, &argv);
loop = g_main_loop_new (NULL, FALSE);
/* create elements */
pipeline = gst_element_factory_make ("pipeline", "pipeline");
src = gst_element_factory_make ("videotestsrc", "src");
toverlay = gst_element_factory_make ("timeoverlay", "timeoverlay");
osel = gst_element_factory_make ("output-selector", "osel");
convert = gst_element_factory_make ("ffmpegcolorspace", "convert");
sink1 = gst_element_factory_make ("xvimagesink", "sink1");
sink2 = gst_element_factory_make ("ximagesink", "sink2");
if (!pipeline || !src || !toverlay || !osel || !convert || !sink1 || !sink2) {
g_print ("missing element\n");
return -1;
/* add them to bin */
gst_bin_add_many (GST_BIN (pipeline), src, toverlay, osel, convert, sink1,
sink2, NULL);
/* set properties */
g_object_set (G_OBJECT (src), "is-live", TRUE, NULL);
g_object_set (G_OBJECT (src), "do-timestamp", TRUE, NULL);
g_object_set (G_OBJECT (src), "num-buffers", 500, NULL);
g_object_set (G_OBJECT (sink1), "sync", FALSE, NULL);
g_object_set (G_OBJECT (sink2), "sync", FALSE, NULL);
g_object_set (G_OBJECT (osel), "resend-latest", TRUE, NULL);
/* link src ! timeoverlay ! osel */
if (!gst_element_link_many (src, toverlay, osel, NULL)) {
g_print ("linking failed\n");
return -1;
/* link output 1 */
sinkpad = gst_element_get_static_pad (sink1, "sink");
osel_src1 = gst_element_get_request_pad (osel, "src%d");
if (gst_pad_link (osel_src1, sinkpad) != GST_PAD_LINK_OK) {
g_print ("linking output 1 failed\n");
return -1;
gst_object_unref (sinkpad);
/* link output 2 */
sinkpad = gst_element_get_static_pad (convert, "sink");
osel_src2 = gst_element_get_request_pad (osel, "src%d");
if (gst_pad_link (osel_src2, sinkpad) != GST_PAD_LINK_OK) {
g_print ("linking output 2 failed\n");
return -1;
gst_object_unref (sinkpad);
if (!gst_element_link (convert, sink2)) {
g_print ("linking output 2 failed\n");
return -1;
/* add switch callback */
g_timeout_add (1000, switch_cb, osel);
/* change to playing */
bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
gst_bus_add_watch (bus, my_bus_callback, loop);
gst_object_unref (bus);
gst_element_set_state (pipeline, GST_STATE_PLAYING);
/* now run */
g_main_loop_run (loop);
/* also clean up */
gst_element_set_state (pipeline, GST_STATE_NULL);
gst_element_release_request_pad (osel, osel_src1);
gst_element_release_request_pad (osel, osel_src2);
gst_object_unref (GST_OBJECT (pipeline));
return 0;
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