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9e0632e353
It adds metadata on the buffers and the mixer parses them. This is done because we want to keep positionning properties and set them on the dynamic mixer pad. Conflicts: ges/Makefile.am
130 lines
3.6 KiB
C
130 lines
3.6 KiB
C
/* GStreamer Editing Services
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* Copyright (C) 2009 Edward Hervey <edward.hervey@collabora.co.uk>
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* 2009 Nokia Corporation
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include <ges/ges.h>
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#include "ges/gstframepositionner.h"
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#include "ges-internal.h"
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#define GES_GNONLIN_VERSION_NEEDED_MAJOR 0
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#define GES_GNONLIN_VERSION_NEEDED_MINOR 11
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#define GES_GNONLIN_VERSION_NEEDED_MICRO 0
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GST_DEBUG_CATEGORY (_ges_debug);
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static gboolean ges_initialized = FALSE;
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/**
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* SECTION:ges-common
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* @short_description: Initialization.
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*/
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static gboolean
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ges_check_gnonlin_availability (void)
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{
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gboolean ret = TRUE;
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if (!gst_registry_check_feature_version (gst_registry_get (),
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"gnlcomposition", GES_GNONLIN_VERSION_NEEDED_MAJOR,
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GES_GNONLIN_VERSION_NEEDED_MINOR, GES_GNONLIN_VERSION_NEEDED_MICRO)) {
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GST_ERROR ("GNonLin plugins not found, or not at least version %u.%u.%u",
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GES_GNONLIN_VERSION_NEEDED_MAJOR, GES_GNONLIN_VERSION_NEEDED_MINOR,
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GES_GNONLIN_VERSION_NEEDED_MICRO);
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ret = FALSE;
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}
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return ret;
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}
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/**
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* ges_init:
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*
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* 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
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* function.
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*/
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gboolean
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ges_init (void)
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{
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/* initialize debugging category */
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GST_DEBUG_CATEGORY_INIT (_ges_debug, "ges", GST_DEBUG_FG_YELLOW,
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"GStreamer Editing Services");
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if (ges_initialized) {
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GST_DEBUG ("already initialized ges");
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return TRUE;
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}
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/* register clip classes with the system */
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GES_TYPE_TEST_CLIP;
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GES_TYPE_URI_CLIP;
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GES_TYPE_TITLE_CLIP;
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GES_TYPE_TRANSITION_CLIP;
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GES_TYPE_OVERLAY_CLIP;
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/* register formatter types with the system */
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GES_TYPE_PITIVI_FORMATTER;
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GES_TYPE_XML_FORMATTER;
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/* Register track elements */
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GES_TYPE_EFFECT;
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/* Register interfaces */
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GES_TYPE_META_CONTAINER;
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ges_asset_cache_init ();
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/* check the gnonlin elements are available */
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if (!ges_check_gnonlin_availability ())
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return FALSE;
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gst_element_register (NULL, "framepositionner", 0,
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GST_TYPE_FRAME_POSITIONNER);
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/* TODO: user-defined types? */
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ges_initialized = TRUE;
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GST_DEBUG ("GStreamer Editing Services initialized");
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return TRUE;
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}
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/**
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* ges_version:
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* @major: (out): pointer to a guint to store the major version number
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* @minor: (out): pointer to a guint to store the minor version number
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* @micro: (out): pointer to a guint to store the micro version number
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* @nano: (out): pointer to a guint to store the nano version number
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*
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* Gets the version number of the GStreamer Editing Services library.
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*/
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void
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ges_version (guint * major, guint * minor, guint * micro, guint * nano)
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{
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g_return_if_fail (major);
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g_return_if_fail (minor);
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g_return_if_fail (micro);
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g_return_if_fail (nano);
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*major = GES_VERSION_MAJOR;
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*minor = GES_VERSION_MINOR;
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*micro = GES_VERSION_MICRO;
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*nano = GES_VERSION_NANO;
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}
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