gstreamer/examples/autoplug/autoplug.c
Wim Taymans 0b77ebb8b0 Remove the gnome dependency
Original commit message from CVS:
Remove the gnome dependency
2002-01-17 20:56:12 +00:00

153 lines
4.5 KiB
C

#include <gst/gst.h>
static void
gst_play_have_type (GstElement *typefind, GstCaps *caps, GstElement *pipeline)
{
GstElement *osssink, *videosink, *videoelement, *colorspace;
GstElement *new_element;
GstAutoplug *autoplug;
GstElement *autobin;
GstElement *filesrc;
GstElement *cache;
GST_DEBUG (0,"GstPipeline: play have type\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");
// disconnect the typefind from the pipeline and remove it
gst_element_disconnect (cache, "src", typefind, "sink");
gst_bin_remove (GST_BIN (autobin), typefind);
/* and an audio sink */
osssink = gst_elementfactory_make("osssink", "play_audio");
g_assert(osssink != NULL);
videosink = gst_bin_new ("videosink");
/* and an video sink */
videoelement = gst_elementfactory_make("xvideosink", "play_video");
g_assert(videosink != NULL);
colorspace = gst_elementfactory_make("colorspace", "colorspace");
g_assert(colorspace != NULL);
gst_element_connect (colorspace, "src", videoelement, "sink");
gst_bin_add (GST_BIN (videosink), colorspace);
gst_bin_add (GST_BIN (videosink), videoelement);
gst_element_add_ghost_pad (videosink,
gst_element_get_pad (colorspace, "sink"), "sink");
autoplug = gst_autoplugfactory_make ("staticrender");
g_assert (autoplug != NULL);
new_element = gst_autoplug_to_renderers (autoplug,
caps,
videosink,
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_connect (cache, "src", new_element, "sink");
gst_element_set_state (pipeline, GST_STATE_PLAYING);
#ifndef GST_DISABLE_LOADSAVE
gst_xml_write_file (GST_ELEMENT (pipeline), fopen ("xmlTest.gst", "w"));
#endif
}
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_disconnect (filesrc, "src", cache, "sink");
gst_element_disconnect (cache, "src", new_element, "sink");
gst_bin_remove (GST_BIN (autobin), cache);
gst_element_connect (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;
g_thread_init(NULL);
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_elementfactory_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_elementfactory_make ("autoplugcache", "cache");
g_signal_connect (G_OBJECT (cache), "cache_empty", G_CALLBACK (gst_play_cache_empty), pipeline);
typefind = gst_elementfactory_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_connect (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_connect (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 (GST_OBJECT (pipeline));
exit(0);
}