gstreamer/ges/ges.c
Vincent Penquerc'h 857142a15d ges: Check that the gnonlin elements are present at initialization time
This avoids hanging with no obvious cause later when they're not.

https://bugzilla.gnome.org/show_bug.cgi?id=641246
2011-02-08 16:43:11 +01:00

84 lines
2.4 KiB
C

/* GStreamer Editing Services
* Copyright (C) 2009 Edward Hervey <edward.hervey@collabora.co.uk>
* 2009 Nokia Corporation
*
* 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.
*/
#include <ges/ges.h>
#include <gst/controller/gstcontroller.h>
#include "ges-internal.h"
#define GES_GNONLIN_VERSION_NEEDED_MAJOR 0
#define GES_GNONLIN_VERSION_NEEDED_MINOR 10
#define GES_GNONLIN_VERSION_NEEDED_MICRO 16
GST_DEBUG_CATEGORY (_ges_debug);
/**
* SECTION:ges-common
* @short_description: Initialization.
*/
static gboolean
ges_check_gnonlin_availability (void)
{
gboolean ret = TRUE;
if (!gst_default_registry_check_feature_version ("gnlcomposition",
GES_GNONLIN_VERSION_NEEDED_MAJOR, GES_GNONLIN_VERSION_NEEDED_MINOR,
GES_GNONLIN_VERSION_NEEDED_MICRO)) {
GST_ERROR
("GNonLin plugins not found, or not at least version %u.%u.%u",
GES_GNONLIN_VERSION_NEEDED_MAJOR,
GES_GNONLIN_VERSION_NEEDED_MINOR, GES_GNONLIN_VERSION_NEEDED_MICRO);
ret = FALSE;
}
return ret;
}
/**
* ges_init:
*
* Initialize the GStreamer Editing Service. Call this before any usage of
* GES.
*/
gboolean
ges_init (void)
{
/* initialize debugging category */
GST_DEBUG_CATEGORY_INIT (_ges_debug, "ges", GST_DEBUG_FG_YELLOW,
"GStreamer Editing Services");
gst_controller_init (NULL, NULL);
/* register timeline object classes with the system */
GES_TYPE_TIMELINE_TEST_SOURCE;
GES_TYPE_TIMELINE_FILE_SOURCE;
GES_TYPE_TIMELINE_TITLE_SOURCE;
GES_TYPE_TIMELINE_STANDARD_TRANSITION;
GES_TYPE_TIMELINE_OVERLAY;
/* check the gnonlin elements are available */
if (!ges_check_gnonlin_availability ())
return FALSE;
/* TODO: user-defined types? */
GST_DEBUG ("GStreamer Editing Services initialized");
return TRUE;
}