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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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aa740d86bd
... Not the other way round. + Add and enhance debugging info on the way The user should not be responsible for removing the GESTrackElements from GESTracks, instead, removing it from a GESClip should imply removing it from any GESTrack it is in. This patch changes sensibly the behaviour when we remove a GESTrackElement from a GESTrack, not remoing it from the GESClip it is in. *But*, users should never remove a GESTrackElement from a GESTrack anyway. The testsuite has been updated to that new behaviour.
1452 lines
41 KiB
C
1452 lines
41 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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/**
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* SECTION:ges-track-element
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* @short_description: Base Class for objects contained in a GESTrack
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*
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* #GESTrackElement is the Base Class for any object that can be contained in a
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* #GESTrack.
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*
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* It contains the basic information as to the location of the object within
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* its container, like the start position, the inpoint, the duration and the
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* priority.
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*/
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#include "ges-internal.h"
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#include "ges-extractable.h"
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#include "ges-track-element.h"
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#include "ges-clip.h"
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#include "ges-meta-container.h"
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#include <gobject/gvaluecollector.h>
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G_DEFINE_ABSTRACT_TYPE (GESTrackElement, ges_track_element,
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GES_TYPE_TIMELINE_ELEMENT);
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struct _GESTrackElementPrivate
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{
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GESTrackType track_type;
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/* These fields are only used before the gnlobject is available */
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guint64 pending_start;
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guint64 pending_inpoint;
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guint64 pending_duration;
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guint32 pending_priority;
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gboolean pending_active;
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GstElement *gnlobject; /* The GnlObject */
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GstElement *element; /* The element contained in the gnlobject (can be NULL) */
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/* We keep a link between properties name and elements internally
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* The hashtable should look like
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* {GParamaSpec ---> element,}*/
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GHashTable *properties_hashtable;
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GESClip *timelineobj;
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GESTrack *track;
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gboolean valid;
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gboolean locked; /* If TRUE, then moves in sync with its controlling
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* GESClip */
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};
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enum
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{
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PROP_0,
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PROP_ACTIVE,
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PROP_LOCKED,
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PROP_TRACK_TYPE,
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PROP_TRACK,
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PROP_LAST
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};
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static GParamSpec *properties[PROP_LAST];
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enum
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{
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DEEP_NOTIFY,
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LAST_SIGNAL
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};
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static guint ges_track_element_signals[LAST_SIGNAL] = { 0 };
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static GstElement *ges_track_element_create_gnl_object_func (GESTrackElement *
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object);
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static void gnlobject_start_cb (GstElement * gnlobject, GParamSpec * arg
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G_GNUC_UNUSED, GESTrackElement * track_element);
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static void gnlobject_media_start_cb (GstElement * gnlobject, GParamSpec * arg
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G_GNUC_UNUSED, GESTrackElement * track_element);
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static void gnlobject_priority_cb (GstElement * gnlobject, GParamSpec * arg
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G_GNUC_UNUSED, GESTrackElement * track_element);
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static void gnlobject_duration_cb (GstElement * gnlobject, GParamSpec * arg
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G_GNUC_UNUSED, GESTrackElement * track_element);
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static void gnlobject_active_cb (GstElement * gnlobject, GParamSpec * arg
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G_GNUC_UNUSED, GESTrackElement * track_element);
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static void connect_properties_signals (GESTrackElement * object);
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static void connect_signal (gpointer key, gpointer value, gpointer user_data);
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static void gst_element_prop_changed_cb (GstElement * element, GParamSpec * arg
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G_GNUC_UNUSED, GESTrackElement * track_element);
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static gboolean _set_start (GESTimelineElement * element, GstClockTime start);
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static gboolean _set_inpoint (GESTimelineElement * element,
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GstClockTime inpoint);
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static gboolean _set_duration (GESTimelineElement * element,
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GstClockTime duration);
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static gboolean _set_priority (GESTimelineElement * element, guint32 priority);
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static void _deep_copy (GESTimelineElement * element,
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GESTimelineElement * copy);
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static inline void
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ges_track_element_set_locked_internal (GESTrackElement * object,
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gboolean locked);
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static GParamSpec **default_list_children_properties (GESTrackElement * object,
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guint * n_properties);
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static void
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ges_track_element_get_property (GObject * object, guint property_id,
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GValue * value, GParamSpec * pspec)
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{
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GESTrackElement *track_element = GES_TRACK_ELEMENT (object);
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switch (property_id) {
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case PROP_ACTIVE:
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g_value_set_boolean (value, ges_track_element_is_active (track_element));
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break;
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case PROP_LOCKED:
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g_value_set_boolean (value, ges_track_element_is_locked (track_element));
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break;
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case PROP_TRACK_TYPE:
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g_value_set_flags (value, track_element->priv->track_type);
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break;
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case PROP_TRACK:
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g_value_set_object (value, track_element->priv->track);
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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_track_element_set_property (GObject * object, guint property_id,
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const GValue * value, GParamSpec * pspec)
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{
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GESTrackElement *track_element = GES_TRACK_ELEMENT (object);
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switch (property_id) {
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case PROP_ACTIVE:
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ges_track_element_set_active (track_element, g_value_get_boolean (value));
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break;
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case PROP_LOCKED:
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ges_track_element_set_locked_internal (track_element,
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g_value_get_boolean (value));
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break;
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case PROP_TRACK_TYPE:
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track_element->priv->track_type = g_value_get_flags (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_track_element_dispose (GObject * object)
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{
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GESTrackElementPrivate *priv = GES_TRACK_ELEMENT (object)->priv;
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if (priv->properties_hashtable)
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g_hash_table_destroy (priv->properties_hashtable);
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if (priv->gnlobject) {
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GstState cstate;
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if (priv->track != NULL) {
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g_error ("%p Still in %p, this means that you forgot"
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" to remove it from the GESTrack it is contained in. You always need"
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" to remove a GESTrackElement from its track before dropping the last"
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" reference\n"
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"This problem may also be caused by a refcounting bug in"
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" the application or GES itself.", object, priv->track);
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gst_element_get_state (priv->gnlobject, &cstate, NULL, 0);
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if (cstate != GST_STATE_NULL)
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gst_element_set_state (priv->gnlobject, GST_STATE_NULL);
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}
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gst_object_unref (priv->gnlobject);
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priv->gnlobject = NULL;
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}
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G_OBJECT_CLASS (ges_track_element_parent_class)->dispose (object);
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}
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static void
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ges_track_element_finalize (GObject * object)
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{
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G_OBJECT_CLASS (ges_track_element_parent_class)->finalize (object);
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}
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static void
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ges_track_element_class_init (GESTrackElementClass * klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GESTimelineElementClass *element_class = GES_TIMELINE_ELEMENT_CLASS (klass);
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g_type_class_add_private (klass, sizeof (GESTrackElementPrivate));
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object_class->get_property = ges_track_element_get_property;
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object_class->set_property = ges_track_element_set_property;
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object_class->dispose = ges_track_element_dispose;
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object_class->finalize = ges_track_element_finalize;
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/**
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* GESTrackElement:active:
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*
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* Whether the object should be taken into account in the #GESTrack output.
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* If #FALSE, then its contents will not be used in the resulting track.
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*/
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properties[PROP_ACTIVE] =
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g_param_spec_boolean ("active", "Active", "Use object in output", TRUE,
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G_PARAM_READWRITE);
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g_object_class_install_property (object_class, PROP_ACTIVE,
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properties[PROP_ACTIVE]);
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/**
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* GESTrackElement:locked:
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*
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* If %TRUE, then moves in sync with its controlling #GESClip
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*/
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properties[PROP_LOCKED] =
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g_param_spec_boolean ("locked", "Locked",
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"Moves in sync with its controling Clip", TRUE, G_PARAM_READWRITE);
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g_object_class_install_property (object_class, PROP_LOCKED,
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properties[PROP_LOCKED]);
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properties[PROP_TRACK_TYPE] = g_param_spec_flags ("track-type", "Track Type",
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"The track type of the object", GES_TYPE_TRACK_TYPE,
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GES_TRACK_TYPE_UNKNOWN, G_PARAM_READWRITE | G_PARAM_CONSTRUCT);
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g_object_class_install_property (object_class, PROP_TRACK_TYPE,
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properties[PROP_TRACK_TYPE]);
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properties[PROP_TRACK] = g_param_spec_object ("track", "Track",
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"The track the object is in", GES_TYPE_TRACK, G_PARAM_READABLE);
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g_object_class_install_property (object_class, PROP_TRACK,
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properties[PROP_TRACK]);
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/**
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* GESTrackElement::deep-notify:
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* @track_element: a #GESTrackElement
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* @prop_object: the object that originated the signal
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* @prop: the property that changed
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*
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* The deep notify signal is used to be notified of property changes of all
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* the childs of @track_element
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*
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* Since: 0.10.2
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*/
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ges_track_element_signals[DEEP_NOTIFY] =
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g_signal_new ("deep-notify", G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_FIRST | G_SIGNAL_NO_RECURSE | G_SIGNAL_DETAILED |
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G_SIGNAL_NO_HOOKS, 0, NULL, NULL, g_cclosure_marshal_generic,
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G_TYPE_NONE, 2, GST_TYPE_ELEMENT, G_TYPE_PARAM);
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element_class->set_start = _set_start;
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element_class->set_duration = _set_duration;
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element_class->set_inpoint = _set_inpoint;
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element_class->set_priority = _set_priority;
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element_class->deep_copy = _deep_copy;
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klass->create_gnl_object = ges_track_element_create_gnl_object_func;
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/* There is no 'get_props_hashtable' default implementation */
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klass->get_props_hastable = NULL;
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klass->list_children_properties = default_list_children_properties;
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}
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static void
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ges_track_element_init (GESTrackElement * self)
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{
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GESTrackElementPrivate *priv = self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
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GES_TYPE_TRACK_ELEMENT, GESTrackElementPrivate);
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/* Sane default values */
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priv->pending_start = 0;
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priv->pending_inpoint = 0;
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priv->pending_duration = GST_SECOND;
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priv->pending_priority = 1;
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priv->pending_active = TRUE;
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priv->locked = TRUE;
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priv->properties_hashtable = NULL;
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}
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static gboolean
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_set_start (GESTimelineElement * element, GstClockTime start)
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{
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GESTrackElement *object = GES_TRACK_ELEMENT (element);
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if (object->priv->gnlobject != NULL) {
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if (G_UNLIKELY (start == _START (object)))
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return FALSE;
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g_object_set (object->priv->gnlobject, "start", start, NULL);
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} else
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object->priv->pending_start = start;
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return TRUE;
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}
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static gboolean
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_set_inpoint (GESTimelineElement * element, GstClockTime inpoint)
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{
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GESTrackElement *object = GES_TRACK_ELEMENT (element);
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if (object->priv->gnlobject != NULL) {
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if (G_UNLIKELY (inpoint == _INPOINT (object)))
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return FALSE;
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g_object_set (object->priv->gnlobject, "media-start", inpoint, NULL);
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} else
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object->priv->pending_inpoint = inpoint;
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return TRUE;
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}
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static gboolean
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_set_duration (GESTimelineElement * element, GstClockTime duration)
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{
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GESTrackElement *object = GES_TRACK_ELEMENT (element);
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GESTrackElementPrivate *priv = object->priv;
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if (GST_CLOCK_TIME_IS_VALID (_MAXDURATION (element)) &&
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duration > _INPOINT (object) + _MAXDURATION (element))
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duration = _MAXDURATION (element) - _INPOINT (object);
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if (priv->gnlobject != NULL) {
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if (G_UNLIKELY (duration == _DURATION (object)))
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return FALSE;
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g_object_set (priv->gnlobject, "duration", duration,
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"media-duration", duration, NULL);
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} else
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priv->pending_duration = duration;
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return TRUE;
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}
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static gboolean
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_set_priority (GESTimelineElement * element, guint32 priority)
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{
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GESTrackElement *object = GES_TRACK_ELEMENT (element);
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GST_DEBUG ("object:%p, priority:%" G_GUINT32_FORMAT, object, priority);
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if (object->priv->gnlobject != NULL) {
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if (G_UNLIKELY (priority == _PRIORITY (object)))
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return FALSE;
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g_object_set (object->priv->gnlobject, "priority", priority, NULL);
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} else
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object->priv->pending_priority = priority;
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return TRUE;
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}
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/**
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* ges_track_element_set_active:
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* @object: a #GESTrackElement
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* @active: visibility
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*
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* Sets the usage of the @object. If @active is %TRUE, the object will be used for
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* playback and rendering, else it will be ignored.
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*
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* Returns: %TRUE if the property was toggled, else %FALSE
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*/
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gboolean
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ges_track_element_set_active (GESTrackElement * object, gboolean active)
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{
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g_return_val_if_fail (GES_IS_TRACK_ELEMENT (object), FALSE);
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GST_DEBUG ("object:%p, active:%d", object, active);
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if (object->priv->gnlobject != NULL) {
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if (G_UNLIKELY (active == object->active))
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return FALSE;
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g_object_set (object->priv->gnlobject, "active", active, NULL);
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} else
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object->priv->pending_active = active;
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return TRUE;
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}
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void
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ges_track_element_set_track_type (GESTrackElement * object, GESTrackType type)
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{
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g_return_if_fail (GES_IS_TRACK_ELEMENT (object));
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if (object->priv->track_type != type) {
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object->priv->track_type = type;
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g_object_notify_by_pspec (G_OBJECT (object), properties[PROP_TRACK_TYPE]);
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}
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}
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GESTrackType
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ges_track_element_get_track_type (GESTrackElement * object)
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{
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g_return_val_if_fail (GES_IS_TRACK_ELEMENT (object), GES_TRACK_TYPE_UNKNOWN);
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return object->priv->track_type;
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}
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/* Callbacks from the GNonLin object */
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static void
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gnlobject_start_cb (GstElement * gnlobject, GParamSpec * arg G_GNUC_UNUSED,
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GESTrackElement * track_element)
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{
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guint64 start;
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g_object_get (gnlobject, "start", &start, NULL);
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GST_DEBUG_OBJECT (gnlobject, "start : %" GST_TIME_FORMAT " current : %"
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GST_TIME_FORMAT, GST_TIME_ARGS (start),
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GST_TIME_ARGS (_START (track_element)));
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if (start != _START (track_element)) {
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ges_timeline_element_set_start (GES_TIMELINE_ELEMENT (track_element),
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start);
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}
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}
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static void
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gst_element_prop_changed_cb (GstElement * element, GParamSpec * arg
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G_GNUC_UNUSED, GESTrackElement * track_element)
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{
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g_signal_emit (track_element, ges_track_element_signals[DEEP_NOTIFY], 0,
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GST_ELEMENT (element), arg);
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}
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static void
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connect_signal (gpointer key, gpointer value, gpointer user_data)
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{
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gchar *signame = g_strconcat ("notify::", G_PARAM_SPEC (key)->name, NULL);
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g_signal_connect (G_OBJECT (value),
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signame, G_CALLBACK (gst_element_prop_changed_cb),
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GES_TRACK_ELEMENT (user_data));
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g_free (signame);
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}
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static void
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connect_properties_signals (GESTrackElement * object)
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{
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if (G_UNLIKELY (!object->priv->properties_hashtable)) {
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GST_WARNING ("The properties_hashtable hasn't been set");
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return;
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}
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g_hash_table_foreach (object->priv->properties_hashtable,
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(GHFunc) connect_signal, object);
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}
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/* Callbacks from the GNonLin object */
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static void
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gnlobject_media_start_cb (GstElement * gnlobject,
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GParamSpec * arg G_GNUC_UNUSED, GESTrackElement * track_element)
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{
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guint64 inpoint;
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g_object_get (gnlobject, "media-start", &inpoint, NULL);
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GST_DEBUG_OBJECT (gnlobject, "in-point : %" GST_TIME_FORMAT " current : %"
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|
GST_TIME_FORMAT, GST_TIME_ARGS (inpoint),
|
|
GST_TIME_ARGS (_INPOINT (track_element)));
|
|
|
|
if (inpoint != _INPOINT (track_element)) {
|
|
ges_timeline_element_set_inpoint (GES_TIMELINE_ELEMENT (track_element),
|
|
inpoint);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gnlobject_priority_cb (GstElement * gnlobject, GParamSpec * arg G_GNUC_UNUSED,
|
|
GESTrackElement * track_element)
|
|
{
|
|
guint32 priority;
|
|
|
|
g_object_get (gnlobject, "priority", &priority, NULL);
|
|
|
|
GST_DEBUG ("gnlobject priority : %d current : %d", priority,
|
|
_PRIORITY (track_element));
|
|
|
|
if (priority != _PRIORITY (track_element)) {
|
|
ges_timeline_element_set_priority (GES_TIMELINE_ELEMENT (track_element),
|
|
priority);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gnlobject_duration_cb (GstElement * gnlobject, GParamSpec * arg G_GNUC_UNUSED,
|
|
GESTrackElement * track_element)
|
|
{
|
|
guint64 duration;
|
|
|
|
g_object_get (gnlobject, "duration", &duration, NULL);
|
|
|
|
GST_DEBUG_OBJECT (gnlobject, "duration : %" GST_TIME_FORMAT " current : %"
|
|
GST_TIME_FORMAT, GST_TIME_ARGS (duration),
|
|
GST_TIME_ARGS (_DURATION (track_element)));
|
|
|
|
if (duration != _DURATION (track_element)) {
|
|
ges_timeline_element_set_duration (GES_TIMELINE_ELEMENT (track_element),
|
|
duration);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gnlobject_active_cb (GstElement * gnlobject, GParamSpec * arg G_GNUC_UNUSED,
|
|
GESTrackElement * track_element)
|
|
{
|
|
gboolean active;
|
|
GESTrackElementClass *klass;
|
|
|
|
klass = GES_TRACK_ELEMENT_GET_CLASS (track_element);
|
|
|
|
g_object_get (gnlobject, "active", &active, NULL);
|
|
|
|
GST_DEBUG ("gnlobject active : %d current : %d", active,
|
|
track_element->active);
|
|
|
|
if (active != track_element->active) {
|
|
track_element->active = active;
|
|
if (klass->active_changed)
|
|
klass->active_changed (track_element, active);
|
|
}
|
|
}
|
|
|
|
|
|
/* default 'create_gnl_object' virtual method implementation */
|
|
static GstElement *
|
|
ges_track_element_create_gnl_object_func (GESTrackElement * self)
|
|
{
|
|
GESTrackElementClass *klass = NULL;
|
|
GstElement *child = NULL;
|
|
GstElement *gnlobject;
|
|
|
|
klass = GES_TRACK_ELEMENT_GET_CLASS (self);
|
|
|
|
if (G_UNLIKELY (self->priv->gnlobject != NULL))
|
|
goto already_have_gnlobject;
|
|
|
|
if (G_UNLIKELY (klass->gnlobject_factorytype == NULL))
|
|
goto no_gnlfactory;
|
|
|
|
GST_DEBUG ("Creating a supporting gnlobject of type '%s'",
|
|
klass->gnlobject_factorytype);
|
|
|
|
gnlobject = gst_element_factory_make (klass->gnlobject_factorytype, NULL);
|
|
|
|
if (G_UNLIKELY (gnlobject == NULL))
|
|
goto no_gnlobject;
|
|
|
|
if (klass->create_element) {
|
|
GST_DEBUG ("Calling subclass 'create_element' vmethod");
|
|
child = klass->create_element (self);
|
|
|
|
if (G_UNLIKELY (!child))
|
|
goto child_failure;
|
|
|
|
if (!gst_bin_add (GST_BIN (gnlobject), child))
|
|
goto add_failure;
|
|
|
|
GST_DEBUG ("Succesfully got the element to put in the gnlobject");
|
|
self->priv->element = child;
|
|
}
|
|
|
|
GST_DEBUG ("done");
|
|
return gnlobject;
|
|
|
|
|
|
/* ERROR CASES */
|
|
|
|
already_have_gnlobject:
|
|
{
|
|
GST_ERROR ("Already controlling a GnlObject %s",
|
|
GST_ELEMENT_NAME (self->priv->gnlobject));
|
|
return NULL;
|
|
}
|
|
|
|
no_gnlfactory:
|
|
{
|
|
GST_ERROR ("No GESTrackElement::gnlobject_factorytype implementation!");
|
|
return NULL;
|
|
}
|
|
|
|
no_gnlobject:
|
|
{
|
|
GST_ERROR ("Error creating a gnlobject of type '%s'",
|
|
klass->gnlobject_factorytype);
|
|
return NULL;
|
|
}
|
|
|
|
child_failure:
|
|
{
|
|
GST_ERROR ("create_element returned NULL");
|
|
gst_object_unref (gnlobject);
|
|
return NULL;
|
|
}
|
|
|
|
add_failure:
|
|
{
|
|
GST_ERROR ("Error adding the contents to the gnlobject");
|
|
gst_object_unref (child);
|
|
gst_object_unref (gnlobject);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
ensure_gnl_object (GESTrackElement * object)
|
|
{
|
|
GESTrackElementClass *class;
|
|
GstElement *gnlobject;
|
|
GHashTable *props_hash;
|
|
gboolean res = TRUE;
|
|
|
|
if (object->priv->gnlobject && object->priv->valid)
|
|
return FALSE;
|
|
|
|
/* 1. Create the GnlObject */
|
|
GST_DEBUG ("Creating GnlObject");
|
|
|
|
class = GES_TRACK_ELEMENT_GET_CLASS (object);
|
|
|
|
if (G_UNLIKELY (class->create_gnl_object == NULL)) {
|
|
GST_ERROR ("No 'create_gnl_object' implementation !");
|
|
goto done;
|
|
}
|
|
|
|
GST_DEBUG ("Calling virtual method");
|
|
|
|
/* 2. Fill in the GnlObject */
|
|
if (object->priv->gnlobject == NULL) {
|
|
|
|
/* call the create_gnl_object virtual method */
|
|
gnlobject = class->create_gnl_object (object);
|
|
|
|
if (G_UNLIKELY (gnlobject == NULL)) {
|
|
GST_ERROR
|
|
("'create_gnl_object' implementation returned TRUE but no GnlObject is available");
|
|
goto done;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (object, "Got a valid GnlObject, now filling it in");
|
|
|
|
object->priv->gnlobject = gst_object_ref (gnlobject);
|
|
|
|
if (object->priv->timelineobj)
|
|
res = ges_clip_fill_track_element (object->priv->timelineobj,
|
|
object, object->priv->gnlobject);
|
|
else
|
|
res = TRUE;
|
|
|
|
if (res) {
|
|
/* Connect to property notifications */
|
|
/* FIXME : remember the signalids so we can remove them later on !!! */
|
|
g_signal_connect (G_OBJECT (object->priv->gnlobject), "notify::start",
|
|
G_CALLBACK (gnlobject_start_cb), object);
|
|
g_signal_connect (G_OBJECT (object->priv->gnlobject),
|
|
"notify::media-start", G_CALLBACK (gnlobject_media_start_cb), object);
|
|
g_signal_connect (G_OBJECT (object->priv->gnlobject), "notify::duration",
|
|
G_CALLBACK (gnlobject_duration_cb), object);
|
|
g_signal_connect (G_OBJECT (object->priv->gnlobject), "notify::priority",
|
|
G_CALLBACK (gnlobject_priority_cb), object);
|
|
g_signal_connect (G_OBJECT (object->priv->gnlobject), "notify::active",
|
|
G_CALLBACK (gnlobject_active_cb), object);
|
|
|
|
/* Set some properties on the GnlObject */
|
|
g_object_set (object->priv->gnlobject,
|
|
"duration", object->priv->pending_duration,
|
|
"media-duration", object->priv->pending_duration,
|
|
"start", object->priv->pending_start,
|
|
"media-start", object->priv->pending_inpoint,
|
|
"priority", object->priv->pending_priority,
|
|
"active", object->priv->pending_active, NULL);
|
|
|
|
if (object->priv->track != NULL)
|
|
g_object_set (object->priv->gnlobject,
|
|
"caps", ges_track_get_caps (object->priv->track), NULL);
|
|
|
|
/* We feed up the props_hashtable if possible */
|
|
if (class->get_props_hastable) {
|
|
props_hash = class->get_props_hastable (object);
|
|
|
|
if (props_hash == NULL) {
|
|
GST_DEBUG ("'get_props_hastable' implementation returned TRUE but no"
|
|
"properties_hashtable is available");
|
|
} else {
|
|
object->priv->properties_hashtable = props_hash;
|
|
connect_properties_signals (object);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
done:
|
|
object->priv->valid = res;
|
|
|
|
GST_DEBUG ("Returning res:%d", res);
|
|
|
|
return res;
|
|
}
|
|
|
|
/* INTERNAL USAGE */
|
|
gboolean
|
|
ges_track_element_set_track (GESTrackElement * object, GESTrack * track)
|
|
{
|
|
gboolean ret = TRUE;
|
|
GST_DEBUG ("object:%p, track:%p", object, track);
|
|
|
|
object->priv->track = track;
|
|
|
|
if (object->priv->track) {
|
|
/* If we already have a gnlobject, we just set its caps properly */
|
|
if (object->priv->gnlobject) {
|
|
g_object_set (object->priv->gnlobject,
|
|
"caps", ges_track_get_caps (object->priv->track), NULL);
|
|
} else {
|
|
ret = ensure_gnl_object (object);
|
|
}
|
|
}
|
|
|
|
g_object_notify_by_pspec (G_OBJECT (object), properties[PROP_TRACK]);
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* ges_track_element_get_track:
|
|
* @object: a #GESTrackElement
|
|
*
|
|
* Get the #GESTrack to which this object belongs.
|
|
*
|
|
* Returns: (transfer none): The #GESTrack to which this object belongs. Can be %NULL if it
|
|
* is not in any track
|
|
*/
|
|
GESTrack *
|
|
ges_track_element_get_track (GESTrackElement * object)
|
|
{
|
|
g_return_val_if_fail (GES_IS_TRACK_ELEMENT (object), NULL);
|
|
|
|
return object->priv->track;
|
|
}
|
|
|
|
/**
|
|
* ges_track_element_get_gnlobject:
|
|
* @object: a #GESTrackElement
|
|
*
|
|
* Get the GNonLin object this object is controlling.
|
|
*
|
|
* Returns: (transfer none): the GNonLin object this object is controlling.
|
|
*/
|
|
GstElement *
|
|
ges_track_element_get_gnlobject (GESTrackElement * object)
|
|
{
|
|
g_return_val_if_fail (GES_IS_TRACK_ELEMENT (object), NULL);
|
|
|
|
return object->priv->gnlobject;
|
|
}
|
|
|
|
/**
|
|
* ges_track_element_get_element:
|
|
* @object: a #GESTrackElement
|
|
*
|
|
* Get the #GstElement this track element is controlling within GNonLin.
|
|
*
|
|
* Returns: (transfer none): the #GstElement this track element is controlling
|
|
* within GNonLin.
|
|
*/
|
|
GstElement *
|
|
ges_track_element_get_element (GESTrackElement * object)
|
|
{
|
|
g_return_val_if_fail (GES_IS_TRACK_ELEMENT (object), NULL);
|
|
|
|
return object->priv->element;
|
|
}
|
|
|
|
static inline void
|
|
ges_track_element_set_locked_internal (GESTrackElement * object,
|
|
gboolean locked)
|
|
{
|
|
object->priv->locked = locked;
|
|
}
|
|
|
|
/**
|
|
* ges_track_element_set_locked:
|
|
* @object: a #GESTrackElement
|
|
* @locked: whether the object is lock to its parent
|
|
*
|
|
* Set the locking status of the @object in relationship to its controlling
|
|
* #GESClip. If @locked is %TRUE, then this object will move synchronously
|
|
* with its controlling #GESClip.
|
|
*/
|
|
void
|
|
ges_track_element_set_locked (GESTrackElement * object, gboolean locked)
|
|
{
|
|
g_return_if_fail (GES_IS_TRACK_ELEMENT (object));
|
|
|
|
GST_DEBUG_OBJECT (object, "%s object", locked ? "Locking" : "Unlocking");
|
|
|
|
ges_track_element_set_locked_internal (object, locked);
|
|
g_object_notify_by_pspec (G_OBJECT (object), properties[PROP_LOCKED]);
|
|
|
|
}
|
|
|
|
/**
|
|
* ges_track_element_is_locked:
|
|
* @object: a #GESTrackElement
|
|
*
|
|
* Let you know if object us locked or not (moving synchronously).
|
|
*
|
|
* Returns: %TRUE if the object is moving synchronously to its controlling
|
|
* #GESClip, else %FALSE.
|
|
*/
|
|
gboolean
|
|
ges_track_element_is_locked (GESTrackElement * object)
|
|
{
|
|
g_return_val_if_fail (GES_IS_TRACK_ELEMENT (object), FALSE);
|
|
|
|
return object->priv->locked;
|
|
}
|
|
|
|
|
|
/**
|
|
* ges_track_element_is_active:
|
|
* @object: a #GESTrackElement
|
|
*
|
|
* Lets you know if @object will be used for playback and rendering,
|
|
* or not.
|
|
*
|
|
* Returns: %TRUE if @object is active, %FALSE otherwize
|
|
*
|
|
* Since: 0.10.2
|
|
*/
|
|
gboolean
|
|
ges_track_element_is_active (GESTrackElement * object)
|
|
{
|
|
g_return_val_if_fail (GES_IS_TRACK_ELEMENT (object), FALSE);
|
|
|
|
if (G_UNLIKELY (object->priv->gnlobject == NULL))
|
|
return object->priv->pending_active;
|
|
else
|
|
return object->active;
|
|
}
|
|
|
|
/**
|
|
* ges_track_element_lookup_child:
|
|
* @object: object to lookup the property in
|
|
* @prop_name: name of the property to look up. You can specify the name of the
|
|
* class as such: "ClassName::property-name", to guarantee that you get the
|
|
* proper GParamSpec in case various GstElement-s contain the same property
|
|
* name. If you don't do so, you will get the first element found, having
|
|
* this property and the and the corresponding GParamSpec.
|
|
* @element: (out) (allow-none) (transfer full): pointer to a #GstElement that
|
|
* takes the real object to set property on
|
|
* @pspec: (out) (allow-none) (transfer full): pointer to take the #GParamSpec
|
|
* describing the property
|
|
*
|
|
* Looks up which @element and @pspec would be effected by the given @name. If various
|
|
* contained elements have this property name you will get the first one, unless you
|
|
* specify the class name in @name.
|
|
*
|
|
* Returns: TRUE if @element and @pspec could be found. FALSE otherwise. In that
|
|
* case the values for @pspec and @element are not modified. Unref @element after
|
|
* usage.
|
|
*
|
|
* Since: 0.10.2
|
|
*/
|
|
gboolean
|
|
ges_track_element_lookup_child (GESTrackElement * object,
|
|
const gchar * prop_name, GstElement ** element, GParamSpec ** pspec)
|
|
{
|
|
GHashTableIter iter;
|
|
gpointer key, value;
|
|
gchar **names, *name, *classename;
|
|
gboolean res;
|
|
GESTrackElementPrivate *priv;
|
|
|
|
g_return_val_if_fail (GES_IS_TRACK_ELEMENT (object), FALSE);
|
|
|
|
priv = object->priv;
|
|
|
|
if (!priv->properties_hashtable)
|
|
goto prop_hash_not_set;
|
|
|
|
classename = NULL;
|
|
res = FALSE;
|
|
|
|
names = g_strsplit (prop_name, "::", 2);
|
|
if (names[1] != NULL) {
|
|
classename = names[0];
|
|
name = names[1];
|
|
} else
|
|
name = names[0];
|
|
|
|
g_hash_table_iter_init (&iter, priv->properties_hashtable);
|
|
while (g_hash_table_iter_next (&iter, &key, &value)) {
|
|
if (g_strcmp0 (G_PARAM_SPEC (key)->name, name) == 0) {
|
|
if (classename == NULL ||
|
|
g_strcmp0 (G_OBJECT_TYPE_NAME (G_OBJECT (value)), classename) == 0) {
|
|
GST_DEBUG ("The %s property from %s has been found", name, classename);
|
|
if (element)
|
|
*element = g_object_ref (value);
|
|
|
|
*pspec = g_param_spec_ref (key);
|
|
res = TRUE;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
g_strfreev (names);
|
|
|
|
return res;
|
|
|
|
prop_hash_not_set:
|
|
{
|
|
GST_WARNING_OBJECT (object, "The child properties haven't been set yet");
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* ges_track_element_set_child_property_by_pspec:
|
|
* @object: a #GESTrackElement
|
|
* @pspec: The #GParamSpec that specifies the property you want to set
|
|
* @value: the value
|
|
*
|
|
* Sets a property of a child of @object.
|
|
*
|
|
* Since: 0.10.2
|
|
*/
|
|
void
|
|
ges_track_element_set_child_property_by_pspec (GESTrackElement * object,
|
|
GParamSpec * pspec, GValue * value)
|
|
{
|
|
GstElement *element;
|
|
GESTrackElementPrivate *priv;
|
|
|
|
g_return_if_fail (GES_IS_TRACK_ELEMENT (object));
|
|
|
|
priv = object->priv;
|
|
|
|
if (!priv->properties_hashtable)
|
|
goto prop_hash_not_set;
|
|
|
|
element = g_hash_table_lookup (priv->properties_hashtable, pspec);
|
|
if (!element)
|
|
goto not_found;
|
|
|
|
g_object_set_property (G_OBJECT (element), pspec->name, value);
|
|
|
|
return;
|
|
|
|
not_found:
|
|
{
|
|
GST_ERROR ("The %s property doesn't exist", pspec->name);
|
|
return;
|
|
}
|
|
prop_hash_not_set:
|
|
{
|
|
GST_DEBUG ("The child properties haven't been set on %p", object);
|
|
return;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* ges_track_element_set_child_property_valist:
|
|
* @object: The #GESTrackElement parent object
|
|
* @first_property_name: The name of the first property to set
|
|
* @var_args: value for the first property, followed optionally by more
|
|
* name/return location pairs, followed by NULL
|
|
*
|
|
* Sets a property of a child of @object. If there are various child elements
|
|
* that have the same property name, you can distinguish them using the following
|
|
* syntax: 'ClasseName::property_name' as property name. If you don't, the
|
|
* corresponding property of the first element found will be set.
|
|
*
|
|
* Since: 0.10.2
|
|
*/
|
|
void
|
|
ges_track_element_set_child_property_valist (GESTrackElement * object,
|
|
const gchar * first_property_name, va_list var_args)
|
|
{
|
|
const gchar *name;
|
|
GParamSpec *pspec;
|
|
GstElement *element;
|
|
|
|
gchar *error = NULL;
|
|
GValue value = { 0, };
|
|
|
|
g_return_if_fail (GES_IS_TRACK_ELEMENT (object));
|
|
|
|
name = first_property_name;
|
|
|
|
/* Note: This part is in big part copied from the gst_child_object_set_valist
|
|
* method. */
|
|
|
|
/* iterate over pairs */
|
|
while (name) {
|
|
if (!ges_track_element_lookup_child (object, name, &element, &pspec))
|
|
goto not_found;
|
|
|
|
#if GLIB_CHECK_VERSION(2,23,3)
|
|
G_VALUE_COLLECT_INIT (&value, pspec->value_type, var_args,
|
|
G_VALUE_NOCOPY_CONTENTS, &error);
|
|
#else
|
|
g_value_init (&value, G_PARAM_SPEC_VALUE_TYPE (pspec));
|
|
G_VALUE_COLLECT (&value, var_args, G_VALUE_NOCOPY_CONTENTS, &error);
|
|
#endif
|
|
|
|
if (error)
|
|
goto cant_copy;
|
|
|
|
g_object_set_property (G_OBJECT (element), pspec->name, &value);
|
|
|
|
g_object_unref (element);
|
|
g_value_unset (&value);
|
|
|
|
name = va_arg (var_args, gchar *);
|
|
}
|
|
return;
|
|
|
|
not_found:
|
|
{
|
|
GST_WARNING ("No property %s in OBJECT\n", name);
|
|
return;
|
|
}
|
|
cant_copy:
|
|
{
|
|
GST_WARNING ("error copying value %s in object %p: %s", pspec->name, object,
|
|
error);
|
|
g_value_unset (&value);
|
|
return;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* ges_track_element_set_child_properties:
|
|
* @object: The #GESTrackElement parent object
|
|
* @first_property_name: The name of the first property to set
|
|
* @...: value for the first property, followed optionally by more
|
|
* name/return location pairs, followed by NULL
|
|
*
|
|
* Sets a property of a child of @object. If there are various child elements
|
|
* that have the same property name, you can distinguish them using the following
|
|
* syntax: 'ClasseName::property_name' as property name. If you don't, the
|
|
* corresponding property of the first element found will be set.
|
|
*
|
|
* Since: 0.10.2
|
|
*/
|
|
void
|
|
ges_track_element_set_child_properties (GESTrackElement * object,
|
|
const gchar * first_property_name, ...)
|
|
{
|
|
va_list var_args;
|
|
|
|
g_return_if_fail (GES_IS_TRACK_ELEMENT (object));
|
|
|
|
va_start (var_args, first_property_name);
|
|
ges_track_element_set_child_property_valist (object, first_property_name,
|
|
var_args);
|
|
va_end (var_args);
|
|
}
|
|
|
|
/**
|
|
* ges_track_element_get_child_property_valist:
|
|
* @object: The #GESTrackElement parent object
|
|
* @first_property_name: The name of the first property to get
|
|
* @var_args: value for the first property, followed optionally by more
|
|
* name/return location pairs, followed by NULL
|
|
*
|
|
* Gets a property of a child of @object. If there are various child elements
|
|
* that have the same property name, you can distinguish them using the following
|
|
* syntax: 'ClasseName::property_name' as property name. If you don't, the
|
|
* corresponding property of the first element found will be set.
|
|
*
|
|
* Since: 0.10.2
|
|
*/
|
|
void
|
|
ges_track_element_get_child_property_valist (GESTrackElement * object,
|
|
const gchar * first_property_name, va_list var_args)
|
|
{
|
|
const gchar *name;
|
|
gchar *error = NULL;
|
|
GValue value = { 0, };
|
|
GParamSpec *pspec;
|
|
GstElement *element;
|
|
|
|
g_return_if_fail (G_IS_OBJECT (object));
|
|
|
|
name = first_property_name;
|
|
|
|
/* This part is in big part copied from the gst_child_object_get_valist method */
|
|
while (name) {
|
|
if (!ges_track_element_lookup_child (object, name, &element, &pspec))
|
|
goto not_found;
|
|
|
|
g_value_init (&value, pspec->value_type);
|
|
g_object_get_property (G_OBJECT (element), pspec->name, &value);
|
|
g_object_unref (element);
|
|
|
|
G_VALUE_LCOPY (&value, var_args, 0, &error);
|
|
if (error)
|
|
goto cant_copy;
|
|
g_value_unset (&value);
|
|
name = va_arg (var_args, gchar *);
|
|
}
|
|
return;
|
|
|
|
not_found:
|
|
{
|
|
GST_WARNING ("no property %s in object", name);
|
|
return;
|
|
}
|
|
cant_copy:
|
|
{
|
|
GST_WARNING ("error copying value %s in object %p: %s", pspec->name, object,
|
|
error);
|
|
g_value_unset (&value);
|
|
return;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* ges_track_element_list_children_properties:
|
|
* @object: The #GESTrackElement to get the list of children properties from
|
|
* @n_properties: (out): return location for the length of the returned array
|
|
*
|
|
* Gets an array of #GParamSpec* for all configurable properties of the
|
|
* children of @object.
|
|
*
|
|
* Returns: (transfer full) (array length=n_properties): an array of #GParamSpec* which should be freed after use or
|
|
* %NULL if something went wrong
|
|
*
|
|
* Since: 0.10.2
|
|
*/
|
|
GParamSpec **
|
|
ges_track_element_list_children_properties (GESTrackElement * object,
|
|
guint * n_properties)
|
|
{
|
|
GESTrackElementClass *class;
|
|
|
|
g_return_val_if_fail (GES_IS_TRACK_ELEMENT (object), NULL);
|
|
|
|
class = GES_TRACK_ELEMENT_GET_CLASS (object);
|
|
|
|
return class->list_children_properties (object, n_properties);
|
|
}
|
|
|
|
/**
|
|
* ges_track_element_get_child_properties:
|
|
* @object: The origin #GESTrackElement
|
|
* @first_property_name: The name of the first property to get
|
|
* @...: return location for the first property, followed optionally by more
|
|
* name/return location pairs, followed by NULL
|
|
*
|
|
* Gets properties of a child of @object.
|
|
*
|
|
* Since: 0.10.2
|
|
*/
|
|
void
|
|
ges_track_element_get_child_properties (GESTrackElement * object,
|
|
const gchar * first_property_name, ...)
|
|
{
|
|
va_list var_args;
|
|
|
|
g_return_if_fail (GES_IS_TRACK_ELEMENT (object));
|
|
|
|
va_start (var_args, first_property_name);
|
|
ges_track_element_get_child_property_valist (object, first_property_name,
|
|
var_args);
|
|
va_end (var_args);
|
|
}
|
|
|
|
/**
|
|
* ges_track_element_get_child_property_by_pspec:
|
|
* @object: a #GESTrackElement
|
|
* @pspec: The #GParamSpec that specifies the property you want to get
|
|
* @value: (out): return location for the value
|
|
*
|
|
* Gets a property of a child of @object.
|
|
*
|
|
* Since: 0.10.2
|
|
*/
|
|
void
|
|
ges_track_element_get_child_property_by_pspec (GESTrackElement * object,
|
|
GParamSpec * pspec, GValue * value)
|
|
{
|
|
GstElement *element;
|
|
GESTrackElementPrivate *priv;
|
|
|
|
g_return_if_fail (GES_IS_TRACK_ELEMENT (object));
|
|
|
|
priv = object->priv;
|
|
|
|
if (!priv->properties_hashtable)
|
|
goto prop_hash_not_set;
|
|
|
|
element = g_hash_table_lookup (priv->properties_hashtable, pspec);
|
|
if (!element)
|
|
goto not_found;
|
|
|
|
g_object_get_property (G_OBJECT (element), pspec->name, value);
|
|
|
|
return;
|
|
|
|
not_found:
|
|
{
|
|
GST_ERROR ("The %s property doesn't exist", pspec->name);
|
|
return;
|
|
}
|
|
prop_hash_not_set:
|
|
{
|
|
GST_ERROR ("The child properties haven't been set on %p", object);
|
|
return;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* ges_track_element_set_child_property:
|
|
* @object: The origin #GESTrackElement
|
|
* @property_name: The name of the property
|
|
* @value: the value
|
|
*
|
|
* Sets a property of a GstElement contained in @object.
|
|
*
|
|
* Note that #ges_track_element_set_child_property is really
|
|
* intended for language bindings, #ges_track_element_set_child_properties
|
|
* is much more convenient for C programming.
|
|
*
|
|
* Returns: %TRUE if the property was set, %FALSE otherwize
|
|
*/
|
|
gboolean
|
|
ges_track_element_set_child_property (GESTrackElement * object,
|
|
const gchar * property_name, GValue * value)
|
|
{
|
|
GParamSpec *pspec;
|
|
GstElement *element;
|
|
|
|
g_return_val_if_fail (GES_IS_TRACK_ELEMENT (object), FALSE);
|
|
|
|
if (!ges_track_element_lookup_child (object, property_name, &element, &pspec))
|
|
goto not_found;
|
|
|
|
g_object_set_property (G_OBJECT (element), pspec->name, value);
|
|
|
|
g_object_unref (element);
|
|
g_param_spec_unref (pspec);
|
|
|
|
return TRUE;
|
|
|
|
not_found:
|
|
{
|
|
GST_WARNING_OBJECT (object, "The %s property doesn't exist", property_name);
|
|
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* ges_track_element_get_child_property:
|
|
* @object: The origin #GESTrackElement
|
|
* @property_name: The name of the property
|
|
* @value: (out): return location for the property value, it will
|
|
* be initialized if it is initialized with 0
|
|
*
|
|
* In general, a copy is made of the property contents and
|
|
* the caller is responsible for freeing the memory by calling
|
|
* g_value_unset().
|
|
*
|
|
* Gets a property of a GstElement contained in @object.
|
|
*
|
|
* Note that #ges_track_element_get_child_property is really
|
|
* intended for language bindings, #ges_track_element_get_child_properties
|
|
* is much more convenient for C programming.
|
|
*
|
|
* Returns: %TRUE if the property was found, %FALSE otherwize
|
|
*/
|
|
gboolean
|
|
ges_track_element_get_child_property (GESTrackElement * object,
|
|
const gchar * property_name, GValue * value)
|
|
{
|
|
GParamSpec *pspec;
|
|
GstElement *element;
|
|
|
|
g_return_val_if_fail (GES_IS_TRACK_ELEMENT (object), FALSE);
|
|
|
|
if (!ges_track_element_lookup_child (object, property_name, &element, &pspec))
|
|
goto not_found;
|
|
|
|
if (G_VALUE_TYPE (value) == G_TYPE_INVALID)
|
|
g_value_init (value, pspec->value_type);
|
|
|
|
g_object_get_property (G_OBJECT (element), pspec->name, value);
|
|
|
|
g_object_unref (element);
|
|
g_param_spec_unref (pspec);
|
|
|
|
return TRUE;
|
|
|
|
not_found:
|
|
{
|
|
GST_WARNING_OBJECT (object, "The %s property doesn't exist", property_name);
|
|
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static GParamSpec **
|
|
default_list_children_properties (GESTrackElement * object,
|
|
guint * n_properties)
|
|
{
|
|
GParamSpec **pspec, *spec;
|
|
GHashTableIter iter;
|
|
gpointer key, value;
|
|
|
|
guint i = 0;
|
|
|
|
if (!object->priv->properties_hashtable)
|
|
goto prop_hash_not_set;
|
|
|
|
*n_properties = g_hash_table_size (object->priv->properties_hashtable);
|
|
pspec = g_new (GParamSpec *, *n_properties);
|
|
|
|
g_hash_table_iter_init (&iter, object->priv->properties_hashtable);
|
|
while (g_hash_table_iter_next (&iter, &key, &value)) {
|
|
spec = G_PARAM_SPEC (key);
|
|
pspec[i] = g_param_spec_ref (spec);
|
|
i++;
|
|
}
|
|
|
|
return pspec;
|
|
|
|
prop_hash_not_set:
|
|
{
|
|
*n_properties = 0;
|
|
GST_DEBUG_OBJECT (object, "No child properties have been set yet");
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
void
|
|
_deep_copy (GESTimelineElement * element, GESTimelineElement * elementcopy)
|
|
{
|
|
GParamSpec **specs;
|
|
guint n, n_specs;
|
|
GValue val = { 0 };
|
|
GESTrackElement *copy = GES_TRACK_ELEMENT (elementcopy);
|
|
|
|
ensure_gnl_object (copy);
|
|
specs =
|
|
ges_track_element_list_children_properties (GES_TRACK_ELEMENT (element),
|
|
&n_specs);
|
|
for (n = 0; n < n_specs; ++n) {
|
|
g_value_init (&val, specs[n]->value_type);
|
|
g_object_get_property (G_OBJECT (element), specs[n]->name, &val);
|
|
ges_track_element_set_child_property_by_pspec (copy, specs[n], &val);
|
|
g_value_unset (&val);
|
|
}
|
|
|
|
g_free (specs);
|
|
}
|
|
|
|
/**
|
|
* ges_track_element_edit:
|
|
* @object: the #GESTrackElement to edit
|
|
* @layers: (element-type GESTimelineLayer): The layers you want the edit to
|
|
* happen in, %NULL means that the edition is done in all the
|
|
* #GESTimelineLayers contained in the current timeline.
|
|
* FIXME: This is not implemented yet.
|
|
* @mode: The #GESEditMode in which the editition will happen.
|
|
* @edge: The #GESEdge the edit should happen on.
|
|
* @position: The position at which to edit @object (in nanosecond)
|
|
*
|
|
* Edit @object in the different exisiting #GESEditMode modes. In the case of
|
|
* slide, and roll, you need to specify a #GESEdge
|
|
*
|
|
* Returns: %TRUE if the object as been edited properly, %FALSE if an error
|
|
* occured
|
|
*
|
|
* Since: 0.10.XX
|
|
*/
|
|
gboolean
|
|
ges_track_element_edit (GESTrackElement * object,
|
|
GList * layers, GESEditMode mode, GESEdge edge, guint64 position)
|
|
{
|
|
GESTrack *track = ges_track_element_get_track (object);
|
|
GESTimeline *timeline;
|
|
|
|
g_return_val_if_fail (GES_IS_TRACK_ELEMENT (object), FALSE);
|
|
|
|
if (G_UNLIKELY (!track)) {
|
|
GST_WARNING_OBJECT (object, "Trying to edit in %d mode but not in"
|
|
"any Track yet.", mode);
|
|
return FALSE;
|
|
}
|
|
|
|
timeline = GES_TIMELINE (ges_track_get_timeline (track));
|
|
|
|
if (G_UNLIKELY (!timeline)) {
|
|
GST_WARNING_OBJECT (object, "Trying to edit in %d mode but not in"
|
|
"track %p no in any timeline yet.", mode, track);
|
|
return FALSE;
|
|
}
|
|
|
|
switch (mode) {
|
|
case GES_EDIT_MODE_NORMAL:
|
|
timeline_move_object (timeline, object, layers, edge, position);
|
|
break;
|
|
case GES_EDIT_MODE_TRIM:
|
|
timeline_trim_object (timeline, object, layers, edge, position);
|
|
break;
|
|
case GES_EDIT_MODE_RIPPLE:
|
|
timeline_ripple_object (timeline, object, layers, edge, position);
|
|
break;
|
|
case GES_EDIT_MODE_ROLL:
|
|
timeline_roll_object (timeline, object, layers, edge, position);
|
|
break;
|
|
case GES_EDIT_MODE_SLIDE:
|
|
timeline_slide_object (timeline, object, layers, edge, position);
|
|
break;
|
|
default:
|
|
GST_ERROR ("Unkown edit mode: %d", mode);
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|