gstreamer/tools/gst-typefind.c

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#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <string.h>
#include <stdlib.h>
#include <gst/gst.h>
/*
* find the type of a media file and display it's properties
**/
gboolean FOUND = FALSE;
void
gst_caps_print (GstCaps *caps)
{
while (caps) {
g_print ("%s (%s)\n", caps->name, gst_caps_get_mime (caps));
if (caps->properties) {
g_print ("has properties\n");
}
caps = caps->next;
}
}
void
have_type_handler (GstElement *typefind, gpointer data)
{
GstCaps *caps = (GstCaps *) data;
gst_caps_print (caps);
FOUND = TRUE;
}
int
main (int argc, char *argv[])
{
GstElement *pipeline;
GstElement *source, *typefind;
gst_init (&argc, &argv);
if (argc < 2) {
g_print ("Please give a filename to typefind\n\n");
exit (1);
}
pipeline = gst_pipeline_new (NULL);
source = gst_element_factory_make ("filesrc", "source");
g_assert (GST_IS_ELEMENT (source));
g_object_set (source, "location", argv[1], NULL);
typefind = gst_element_factory_make ("typefind", "typefind");
g_assert (GST_IS_ELEMENT (typefind));
gst_bin_add_many (GST_BIN (pipeline), source, typefind, NULL);
gst_element_link (source, typefind);
g_signal_connect (G_OBJECT (typefind), "have-type",
G_CALLBACK (have_type_handler), NULL);
/* set to play */
gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PLAYING);
while (gst_bin_iterate (GST_BIN (pipeline)) && !FOUND) ;
if (!FOUND) {
g_print ("No type found\n");
return 1;
}
return 0;
}