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135 lines
4 KiB
C
135 lines
4 KiB
C
/* GStreamer Editing Services
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* Copyright (C) 2011 Thibault Saunier <thibault.saunier@collabora.co.uk>
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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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/**
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* SECTION: ges-timeline-effect
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* @short_description: An effect in a #GESTimelineLayer
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*
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* The effect will be applied on the sources that have lower priorities
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* (higher number) between the inpoint and the end of it.
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*
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* In a #GESSimpleTimelineLayer, the priorities will be set for you but if
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* you use another type of #GESTimelineLayer, you will have to handle it
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* yourself.
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*/
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#include <ges/ges.h>
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#include "ges-internal.h"
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#include "ges-types.h"
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G_DEFINE_TYPE (GESTimelineEffect, ges_timeline_effect,
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GES_TYPE_TIMELINE_OPERATION);
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struct _GESTimelineEffectPrivate
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{
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gchar *bin_description;
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};
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enum
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{
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PROP_0,
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PROP_BIN_DESCRIPTION,
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};
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static GESTrackObject *ges_tl_effect_create_track_object (GESTimelineObject
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* self, GESTrack * track);
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static void
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ges_timeline_effect_get_property (GObject * object,
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guint property_id, GValue * value, GParamSpec * pspec)
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{
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switch (property_id) {
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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}
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}
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static void
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ges_timeline_effect_set_property (GObject * object,
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guint property_id, const GValue * value, GParamSpec * pspec)
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{
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GESTimelineEffect *self = GES_TIMELINE_EFFECT (object);
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switch (property_id) {
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case PROP_BIN_DESCRIPTION:
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self->priv->bin_description = g_value_dup_string (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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}
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}
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static void
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ges_timeline_effect_class_init (GESTimelineEffectClass * klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GESTimelineObjectClass *timobj_class = GES_TIMELINE_OBJECT_CLASS (klass);
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g_type_class_add_private (klass, sizeof (GESTimelineEffectPrivate));
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object_class->get_property = ges_timeline_effect_get_property;
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object_class->set_property = ges_timeline_effect_set_property;
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/**
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* GESTrackEffect:bin_description:
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*
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* The description of the effect bin with a gst-launch-style
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* pipeline description.
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* exemple: videobalance saturation=1.5 hue=+0.5
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*/
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g_object_class_install_property (object_class, PROP_BIN_DESCRIPTION,
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g_param_spec_string ("bin-description",
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"bin description",
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"Bin description of the effect",
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NULL, G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
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timobj_class->create_track_object = ges_tl_effect_create_track_object;
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timobj_class->need_fill_track = FALSE;
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}
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static void
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ges_timeline_effect_init (GESTimelineEffect * self)
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{
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self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
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GES_TYPE_TIMELINE_EFFECT, GESTimelineEffectPrivate);
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}
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static GESTrackObject *
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ges_tl_effect_create_track_object (GESTimelineObject * self, GESTrack * track)
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{
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return NULL;
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}
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/**
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* ges_timeline_effect_new_from_bin_desc:
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* @bin_description: The gst-launch like bin description of the effect
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*
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* Creates a new #GESTimelineEffect from the description of the bin. This is
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* a convenience method for testing puposes.
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*
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* Returns: a newly created #GESTimelineEffect, or %NULL if something went
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* wrong.
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*/
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GESTimelineEffect *
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ges_timeline_effect_new_from_bin_desc (const gchar * bin_description)
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{
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return g_object_new (GES_TYPE_TIMELINE_EFFECT, "bin-description",
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bin_description, NULL);
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}
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