gstreamer/ges/ges.c

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/* GStreamer Editing Services
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* Copyright (C) 2009 Edward Hervey <edward.hervey@collabora.co.uk>
* 2009 Nokia Corporation
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*
* 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 "ges-internal.h"
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#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);
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/**
* SECTION:ges-common
* @short_description: Initialization.
*/
static gboolean
ges_check_gnonlin_availability (void)
{
gboolean ret = TRUE;
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if (!gst_registry_check_feature_version (gst_registry_get (),
"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
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* GES. You should take care of initilizing GStreamer before calling this
* function.
*/
gboolean
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ges_init (void)
{
/* initialize debugging category */
GST_DEBUG_CATEGORY_INIT (_ges_debug, "ges", GST_DEBUG_FG_YELLOW,
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"GStreamer Editing Services");
/* 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;
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}