gstreamer/tools/gst-typefind.c

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#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <string.h>
#include <stdlib.h>
#include <locale.h>
#include <gst/gst.h>
/*
* find the type of a media file and display it's properties
**/
gboolean FOUND = FALSE;
gchar *filename = NULL;
void
gst_caps_print (const char *filename, GstCaps *caps)
{
gchar *caps_str = gst_caps_to_string (caps);
g_print ("%s - %s\n", filename, caps_str);
g_free (caps_str);
}
void
have_type_handler (GstElement *typefind, guint probability, GstCaps *caps, gpointer unused)
{
gst_caps_print (filename, caps);
FOUND = TRUE;
}
int
main (int argc, char *argv[])
{
guint i = 1;
GstElement *pipeline;
GstElement *source, *typefind;
setlocale (LC_ALL, "");
gst_init (&argc, &argv);
if (argc < 2) {
g_print ("Please give a filename to typefind\n\n");
return 1;
}
pipeline = gst_pipeline_new (NULL);
source = gst_element_factory_make ("filesrc", "source");
g_assert (GST_IS_ELEMENT (source));
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);
while (i < argc) {
FOUND = FALSE;
gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_NULL);
filename = argv[i];
g_object_set (source, "location", filename, NULL);
/* set to play */
gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PLAYING);
while (!FOUND) {
if (!gst_bin_iterate (GST_BIN (pipeline)))
break;
}
if (!FOUND) {
g_print ("%s - No type found\n", argv[i]);
}
i++;
}
g_object_unref (pipeline);
return 0;
}