mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-20 23:36:38 +00:00
f8e79bdf86
Original commit message from CVS: 2005-06-28 Andy Wingo <wingo@pobox.com> * *.c: Don't cast to GST_OBJECT when reffing or unreffing. Large source-munging commit!!!
133 lines
3.8 KiB
C
133 lines
3.8 KiB
C
#include <gst/gst.h>
|
|
|
|
static void
|
|
gst_play_have_type (GstElement * typefind, GstCaps * caps,
|
|
GstElement * pipeline)
|
|
{
|
|
GstElement *osssink;
|
|
GstElement *new_element;
|
|
GstAutoplug *autoplug;
|
|
GstElement *autobin;
|
|
GstElement *filesrc;
|
|
GstElement *cache;
|
|
|
|
GST_DEBUG ("GstPipeline: play have type");
|
|
|
|
gst_element_set_state (pipeline, GST_STATE_PAUSED);
|
|
|
|
filesrc = gst_bin_get_by_name (GST_BIN (pipeline), "disk_source");
|
|
autobin = gst_bin_get_by_name (GST_BIN (pipeline), "autobin");
|
|
cache = gst_bin_get_by_name (GST_BIN (autobin), "cache");
|
|
|
|
/* unlink_pads the typefind from the pipeline and remove it */
|
|
gst_element_unlink_pads (cache, "src", typefind, "sink");
|
|
gst_bin_remove (GST_BIN (autobin), typefind);
|
|
|
|
/* and an audio sink */
|
|
osssink = gst_element_factory_make ("osssink", "play_audio");
|
|
g_assert (osssink != NULL);
|
|
|
|
autoplug = gst_autoplug_factory_make ("staticrender");
|
|
g_assert (autoplug != NULL);
|
|
|
|
new_element = gst_autoplug_to_renderers (autoplug, caps, osssink, NULL);
|
|
|
|
if (!new_element) {
|
|
g_print ("could not autoplug, no suitable codecs found...\n");
|
|
exit (-1);
|
|
}
|
|
|
|
gst_element_set_name (new_element, "new_element");
|
|
|
|
gst_bin_add (GST_BIN (autobin), new_element);
|
|
|
|
g_object_set (G_OBJECT (cache), "reset", TRUE, NULL);
|
|
|
|
gst_element_link_pads (cache, "src", new_element, "sink");
|
|
|
|
gst_element_set_state (pipeline, GST_STATE_PLAYING);
|
|
}
|
|
|
|
static void
|
|
gst_play_cache_empty (GstElement * element, GstElement * pipeline)
|
|
{
|
|
GstElement *autobin;
|
|
GstElement *filesrc;
|
|
GstElement *cache;
|
|
GstElement *new_element;
|
|
|
|
fprintf (stderr, "have cache empty\n");
|
|
|
|
gst_element_set_state (pipeline, GST_STATE_PAUSED);
|
|
|
|
filesrc = gst_bin_get_by_name (GST_BIN (pipeline), "disk_source");
|
|
autobin = gst_bin_get_by_name (GST_BIN (pipeline), "autobin");
|
|
cache = gst_bin_get_by_name (GST_BIN (autobin), "cache");
|
|
new_element = gst_bin_get_by_name (GST_BIN (autobin), "new_element");
|
|
|
|
gst_element_unlink_pads (filesrc, "src", cache, "sink");
|
|
gst_element_unlink_pads (cache, "src", new_element, "sink");
|
|
gst_bin_remove (GST_BIN (autobin), cache);
|
|
gst_element_link_pads (filesrc, "src", new_element, "sink");
|
|
|
|
gst_element_set_state (pipeline, GST_STATE_PLAYING);
|
|
|
|
fprintf (stderr, "done with cache_empty\n");
|
|
}
|
|
|
|
int
|
|
main (int argc, char *argv[])
|
|
{
|
|
GstElement *filesrc;
|
|
GstElement *pipeline;
|
|
GstElement *autobin;
|
|
GstElement *typefind;
|
|
GstElement *cache;
|
|
|
|
gst_init (&argc, &argv);
|
|
|
|
if (argc != 2) {
|
|
g_print ("usage: %s <filename>\n", argv[0]);
|
|
exit (-1);
|
|
}
|
|
|
|
/* create a new pipeline to hold the elements */
|
|
pipeline = gst_pipeline_new ("pipeline");
|
|
g_assert (pipeline != NULL);
|
|
|
|
/* create a disk reader */
|
|
filesrc = gst_element_factory_make ("filesrc", "disk_source");
|
|
g_assert (filesrc != NULL);
|
|
g_object_set (G_OBJECT (filesrc), "location", argv[1], NULL);
|
|
gst_bin_add (GST_BIN (pipeline), filesrc);
|
|
|
|
autobin = gst_bin_new ("autobin");
|
|
cache = gst_element_factory_make ("autoplugcache", "cache");
|
|
g_signal_connect (G_OBJECT (cache), "cache_empty",
|
|
G_CALLBACK (gst_play_cache_empty), pipeline);
|
|
|
|
typefind = gst_element_factory_make ("typefind", "typefind");
|
|
g_signal_connect (G_OBJECT (typefind), "have_type",
|
|
G_CALLBACK (gst_play_have_type), pipeline);
|
|
gst_bin_add (GST_BIN (autobin), cache);
|
|
gst_bin_add (GST_BIN (autobin), typefind);
|
|
|
|
gst_element_link_pads (cache, "src", typefind, "sink");
|
|
gst_element_add_ghost_pad (autobin, gst_element_get_pad (cache, "sink"),
|
|
"sink");
|
|
|
|
gst_bin_add (GST_BIN (pipeline), autobin);
|
|
gst_element_link_pads (filesrc, "src", autobin, "sink");
|
|
|
|
/* start playing */
|
|
gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PLAYING);
|
|
|
|
while (gst_bin_iterate (GST_BIN (pipeline)));
|
|
|
|
/* stop the pipeline */
|
|
gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_NULL);
|
|
|
|
gst_object_unref (pipeline);
|
|
|
|
exit (0);
|
|
}
|