gstreamer/gst/xdgmime/gstxdgmime.c
Sebastian Dröge 546bfbecb8 xdgmime: Use empty caps for registering the typefinders with old core versions
core before 0.10.22.1 produced assertions when storing typefind factories
with NULL caps in the registry.
2009-02-27 20:21:23 +01:00

83 lines
2.4 KiB
C

/* GStreamer
* Copyright (C) <2009> Sebastian Dröge <sebastian.droege@collabora.co.uk>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <gst/gst.h>
#include "xdgmime/xdgmime.h"
GST_DEBUG_CATEGORY (xdgmime_debug);
#define GST_CAT_DEFAULT xdgmime_debug
static void
xdgmime_typefind (GstTypeFind * find, gpointer user_data)
{
const gchar *mimetype;
gsize length = 16384;
guint64 tf_length;
gint prio;
guint8 *data;
GstCaps *caps;
if ((tf_length = gst_type_find_get_length (find)) > 0)
length = MIN (length, tf_length);
if ((data = gst_type_find_peek (find, 0, length)) == NULL)
return;
mimetype = xdg_mime_get_mime_type_for_data (data, length, &prio);
if (mimetype == NULL || g_str_equal (mimetype, XDG_MIME_TYPE_UNKNOWN))
return;
GST_DEBUG ("Got mimetype '%s' with prio %d", mimetype, prio);
caps = gst_caps_new_simple (mimetype, NULL);
gst_type_find_suggest (find, GST_TYPE_FIND_LIKELY, caps);
}
static gboolean
plugin_init (GstPlugin * plugin)
{
GstCaps *caps = NULL;
guint major, minor, micro, nano;
gboolean ret;
/* FIXME: GStreamer before 0.10.22.1 produced assertions
* when storing typefind factories with NULL caps */
gst_version (&major, &minor, &micro, &nano);
if (major <= 0 && minor <= 10 && micro <= 22 && nano <= 0)
caps = gst_caps_new_empty ();
GST_DEBUG_CATEGORY_INIT (xdgmime_debug, "xdgmime", 0, "XDG-MIME");
ret = gst_type_find_register (plugin,
"xdgmime", GST_RANK_MARGINAL, xdgmime_typefind, NULL, caps, NULL, NULL);
if (caps)
gst_caps_unref (caps);
return ret;
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"xdgmime",
"XDG-MIME",
plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)