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e835042f04
APIs: - ges_timeline_get_frame_time - ges_timeline_get_frame_at - ges_clip_asset_get_frame_time - ges_clip_get_timeline_time_from_source_frame Extracting ges_util_structure_get_clocktime to internal utilities adding support for specifying timing values in frames with the special f<frame-number> synthax.
2085 lines
70 KiB
C
2085 lines
70 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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* 2012 Collabora Ltd.
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* Author: Sebastian Dröge <sebastian.droege@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., 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:gesclip
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* @title: GESClip
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* @short_description: Base class for elements that occupy a single
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* #GESLayer and maintain equal timings of their children
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*
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* #GESClip-s are the core objects of a #GESLayer. Each clip may exist in
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* a single layer but may control several #GESTrackElement-s that span
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* several #GESTrack-s. A clip will ensure that all its children share the
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* same #GESTimelineElement:start and #GESTimelineElement:duration in
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* their tracks, which will match the #GESTimelineElement:start and
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* #GESTimelineElement:duration of the clip itself. Therefore, changing
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* the timing of the clip will change the timing of the children, and a
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* change in the timing of a child will change the timing of the clip and
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* subsequently all its siblings. As such, a clip can be treated as a
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* singular object in its layer.
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*
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* For most uses of a #GESTimeline, it is often sufficient to only
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* interact with #GESClip-s directly, which will take care of creating and
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* organising the elements of the timeline's tracks.
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*
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* Most subclassed clips will be associated with some *core*
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* #GESTrackElement-s. When such a clip is added to a layer in a timeline,
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* it will create these children and they will be added to the timeline's
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* tracks. You can connect to the #GESContainer::child-added signal to be
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* notified of their creation. If a clip will produce several core
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* elements of the same #GESTrackElement:track-type but they are destined
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* for separate tracks, you should connect to the timeline's
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* #GESTimeline::select-tracks-for-object signal to coordinate which
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* tracks each element should land in.
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*
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* The #GESTimelineElement:in-point of the clip will control the
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* #GESTimelineElement:in-point of these core elements to be the same
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* value if their #GESTrackElement:has-internal-source is set to %TRUE.
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* The #GESTimelineElement:max-duration of the clip is the minimum
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* #GESTimelineElement:max-duration of its children. If you set its value
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* to anything other than its current value, this will also set the
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* #GESTimelineElement:max-duration of all its core children to the same
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* value if their #GESTrackElement:has-internal-source is set to %TRUE.
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*
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* ## Effects
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*
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* Some subclasses (#GESSourceClip and #GESBaseEffect) may also allow
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* their objects to have additional non-core #GESBaseEffect-s elements as
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* children. These are additional effects that are applied to the output
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* data of the core elements. They can be added to the clip using
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* ges_container_add(), which will take care of adding the effect to the
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* timeline's tracks. The new effect will be placed between the clip's
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* core track elements and its other effects. As such, the newly added
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* effect will be applied to any source data **before** the other existing
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* effects. You can change the ordering of effects using
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* ges_clip_set_top_effect_index().
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "ges-clip.h"
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#include "ges.h"
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#include "ges-internal.h"
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#include <string.h>
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static GList *ges_clip_create_track_elements_func (GESClip * clip,
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GESTrackType type);
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static gboolean _ripple (GESTimelineElement * element, GstClockTime start);
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static gboolean _ripple_end (GESTimelineElement * element, GstClockTime end);
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static gboolean _roll_start (GESTimelineElement * element, GstClockTime start);
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static gboolean _roll_end (GESTimelineElement * element, GstClockTime end);
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static gboolean _trim (GESTimelineElement * element, GstClockTime start);
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static void _compute_height (GESContainer * container);
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struct _GESClipPrivate
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{
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/*< public > */
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GESLayer *layer;
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/*< private > */
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guint nb_effects;
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GList *copied_track_elements;
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GESLayer *copied_layer;
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gboolean prevent_priority_offset_update;
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gboolean prevent_resort;
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gboolean updating_max_duration;
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gboolean prevent_max_duration_update;
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gboolean setting_inpoint;
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/* The formats supported by this Clip */
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GESTrackType supportedformats;
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};
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typedef struct _CheckTrack
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{
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GESTrack *track;
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GESTrackElement *source;
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} CheckTrack;
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enum
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{
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PROP_0,
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PROP_LAYER,
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PROP_SUPPORTED_FORMATS,
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PROP_LAST
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};
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static GParamSpec *properties[PROP_LAST];
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static void
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ges_extractable_interface_init (GESExtractableInterface * iface)
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{
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iface->asset_type = GES_TYPE_CLIP_ASSET;
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}
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G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GESClip, ges_clip,
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GES_TYPE_CONTAINER, G_ADD_PRIVATE (GESClip)
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G_IMPLEMENT_INTERFACE (GES_TYPE_EXTRACTABLE,
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ges_extractable_interface_init));
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/****************************************************
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* Listen to our children *
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****************************************************/
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/* @min_priority: The absolute minimum priority a child of @container should have
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* @max_priority: The absolute maximum priority a child of @container should have
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*/
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static void
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_get_priority_range_full (GESContainer * container, guint32 * min_priority,
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guint32 * max_priority, guint32 priority_base)
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{
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GESLayer *layer = GES_CLIP (container)->priv->layer;
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if (layer) {
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*min_priority = priority_base + layer->min_nle_priority;
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*max_priority = layer->max_nle_priority;
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} else {
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*min_priority = priority_base + MIN_NLE_PRIO;
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*max_priority = G_MAXUINT32;
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}
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}
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static void
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_get_priority_range (GESContainer * container, guint32 * min_priority,
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guint32 * max_priority)
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{
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_get_priority_range_full (container, min_priority, max_priority,
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_PRIORITY (container));
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}
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static void
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_child_priority_changed_cb (GESTimelineElement * child,
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GParamSpec * arg G_GNUC_UNUSED, GESContainer * container)
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{
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/* we do not change the rest of the clip in response to a change in
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* the child priority */
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guint32 min_prio, max_prio;
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GESClipPrivate *priv = GES_CLIP (container)->priv;
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GST_DEBUG_OBJECT (container, "TimelineElement %" GES_FORMAT
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" priority changed to %u", GES_ARGS (child), _PRIORITY (child));
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if (!priv->prevent_priority_offset_update) {
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/* Update mapping */
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_get_priority_range (container, &min_prio, &max_prio);
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_ges_container_set_priority_offset (container, child,
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min_prio - _PRIORITY (child));
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}
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if (!priv->prevent_resort) {
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_ges_container_sort_children (container);
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_compute_height (container);
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}
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}
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static void
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_child_inpoint_changed_cb (GESTimelineElement * child, GParamSpec * pspec,
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GESContainer * container)
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{
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if (GES_CLIP (container)->priv->setting_inpoint)
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return;
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/* ignore non-core */
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if (!ges_track_element_get_owners (GES_TRACK_ELEMENT (child)))
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return;
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/* if the track element has no internal content, then this means its
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* in-point has been set (back) to 0, we can ignore this update */
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if (!ges_track_element_has_internal_source (GES_TRACK_ELEMENT (child)))
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return;
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/* If the child->inpoint is the same as our own, set_inpoint will do
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* nothing. For example, when we set them in add_child (the notifies for
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* this are released after child_added is called because
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* ges_container_add freezes them) */
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_set_inpoint0 (GES_TIMELINE_ELEMENT (container), child->inpoint);
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}
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/* called when a child is added, removed or their max-duration changes */
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static void
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_update_max_duration (GESContainer * container)
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{
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GList *tmp;
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GstClockTime min = GST_CLOCK_TIME_NONE;
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GESClipPrivate *priv = GES_CLIP (container)->priv;
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if (priv->prevent_max_duration_update)
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return;
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for (tmp = container->children; tmp; tmp = tmp->next) {
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GESTimelineElement *child = tmp->data;
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if (ges_track_element_get_owners (GES_TRACK_ELEMENT (child))
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&& GST_CLOCK_TIME_IS_VALID (child->maxduration))
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min = GST_CLOCK_TIME_IS_VALID (min) ? MIN (min, child->maxduration) :
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child->maxduration;
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}
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priv->updating_max_duration = TRUE;
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ges_timeline_element_set_max_duration (GES_TIMELINE_ELEMENT (container), min);
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priv->updating_max_duration = FALSE;
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}
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static void
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_child_max_duration_changed_cb (GESTimelineElement * child,
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GParamSpec * pspec, GESContainer * container)
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{
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/* ignore non-core */
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if (!ges_track_element_get_owners (GES_TRACK_ELEMENT (child)))
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return;
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_update_max_duration (container);
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}
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static void
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_child_has_internal_source_changed_cb (GESTimelineElement * child,
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GParamSpec * pspec, GESContainer * container)
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{
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/* ignore non-core */
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if (!ges_track_element_get_owners (GES_TRACK_ELEMENT (child)))
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return;
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/* if the track element is now registered to have no internal content,
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* we don't have to do anything */
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if (!ges_track_element_has_internal_source (GES_TRACK_ELEMENT (child)))
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return;
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/* otherwise, we need to make its in-point match ours */
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_set_inpoint0 (child, _INPOINT (container));
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}
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/*****************************************************
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* *
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* GESTimelineElement virtual methods implementation *
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* *
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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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GList *tmp, *children;
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GESContainer *container = GES_CONTAINER (element);
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GST_DEBUG_OBJECT (element, "Setting children start, (initiated_move: %"
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GST_PTR_FORMAT ")", container->initiated_move);
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/* get copy of children, since GESContainer may resort the clip */
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children = ges_container_get_children (container, FALSE);
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container->children_control_mode = GES_CHILDREN_IGNORE_NOTIFIES;
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for (tmp = children; tmp; tmp = g_list_next (tmp)) {
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GESTimelineElement *child = (GESTimelineElement *) tmp->data;
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if (child != container->initiated_move)
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_set_start0 (GES_TIMELINE_ELEMENT (child), start);
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}
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container->children_control_mode = GES_CHILDREN_UPDATE;
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g_list_free_full (children, gst_object_unref);
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return TRUE;
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}
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/* Whether @clip can have its in-point set to @inpoint because none of
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* its children have a max-duration below it */
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gboolean
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ges_clip_can_set_inpoint_of_child (GESClip * clip, GESTimelineElement * child,
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GstClockTime inpoint)
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{
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GList *tmp;
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/* don't bother checking if we are setting the value */
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if (clip->priv->setting_inpoint)
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return TRUE;
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/* non-core children do not effect our in-point */
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if (!ges_track_element_get_owners (GES_TRACK_ELEMENT (child)))
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return TRUE;
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for (tmp = GES_CONTAINER_CHILDREN (clip); tmp; tmp = tmp->next) {
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GESTimelineElement *child = tmp->data;
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if (ges_track_element_get_owners (GES_TRACK_ELEMENT (child))
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&& ges_track_element_has_internal_source (GES_TRACK_ELEMENT (child))) {
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if (GST_CLOCK_TIME_IS_VALID (child->maxduration)
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&& child->maxduration < inpoint)
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return FALSE;
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}
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}
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return TRUE;
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}
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/* returns TRUE if we did not break early */
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static gboolean
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_set_childrens_inpoint (GESTimelineElement * element, GstClockTime inpoint,
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gboolean break_on_failure)
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{
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GList *tmp;
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GESClipPrivate *priv = GES_CLIP (element)->priv;
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priv->setting_inpoint = TRUE;
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for (tmp = GES_CONTAINER_CHILDREN (element); tmp; tmp = tmp->next) {
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GESTimelineElement *child = tmp->data;
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if (ges_track_element_get_owners (GES_TRACK_ELEMENT (child))
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&& ges_track_element_has_internal_source (GES_TRACK_ELEMENT (child))) {
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if (!_set_inpoint0 (child, inpoint)) {
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GST_ERROR_OBJECT ("Could not set the in-point of child %"
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GES_FORMAT " to %" GST_TIME_FORMAT, GES_ARGS (child),
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GST_TIME_ARGS (inpoint));
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if (break_on_failure)
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return FALSE;
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}
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}
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}
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priv->setting_inpoint = FALSE;
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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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if (!_set_childrens_inpoint (element, inpoint, TRUE)) {
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_set_childrens_inpoint (element, element->inpoint, FALSE);
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return FALSE;
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}
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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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GList *tmp, *children;
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GESContainer *container = GES_CONTAINER (element);
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/* get copy of children, since GESContainer may resort the clip */
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children = ges_container_get_children (container, FALSE);
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container->children_control_mode = GES_CHILDREN_IGNORE_NOTIFIES;
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for (tmp = container->children; tmp; tmp = g_list_next (tmp)) {
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GESTimelineElement *child = (GESTimelineElement *) tmp->data;
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if (child != container->initiated_move) {
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ELEMENT_SET_FLAG (child, GES_TIMELINE_ELEMENT_SET_SIMPLE);
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_set_duration0 (GES_TIMELINE_ELEMENT (child), duration);
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ELEMENT_UNSET_FLAG (child, GES_TIMELINE_ELEMENT_SET_SIMPLE);
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}
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}
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container->children_control_mode = GES_CHILDREN_UPDATE;
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g_list_free_full (children, gst_object_unref);
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return TRUE;
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}
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static gboolean
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_set_max_duration (GESTimelineElement * element, GstClockTime maxduration)
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{
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GList *tmp;
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GESClipPrivate *priv = GES_CLIP (element)->priv;
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GstClockTime new_min = GST_CLOCK_TIME_NONE;
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/* if we are setting based on a change in the minimum */
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if (priv->updating_max_duration)
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return TRUE;
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if (!GES_CONTAINER_CHILDREN (element)) {
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/* If any child added later on has a lower max duration, this max duration
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* will be used instead anyway */
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GST_INFO_OBJECT (element,
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"Setting max duration %" GST_TIME_FORMAT " as %" GES_FORMAT
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" doesn't have any child yet",
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GST_TIME_ARGS (maxduration), GES_ARGS (element));
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return TRUE;
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}
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/* else, we set every core child to have the same max duration */
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priv->prevent_max_duration_update = TRUE;
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for (tmp = GES_CONTAINER_CHILDREN (element); tmp; tmp = tmp->next) {
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GESTimelineElement *child = tmp->data;
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if (ges_track_element_get_owners (GES_TRACK_ELEMENT (child))
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&& ges_track_element_has_internal_source (GES_TRACK_ELEMENT (child))) {
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if (!ges_timeline_element_set_max_duration (child, maxduration)) {
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GST_ERROR_OBJECT ("Could not set the max-duration of child %"
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GES_FORMAT " to %" GST_TIME_FORMAT, GES_ARGS (child),
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GST_TIME_ARGS (maxduration));
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}
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if (GST_CLOCK_TIME_IS_VALID (child->maxduration)) {
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new_min = GST_CLOCK_TIME_IS_VALID (new_min) ?
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MIN (new_min, child->maxduration) : child->maxduration;
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}
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}
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}
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priv->prevent_max_duration_update = FALSE;
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if (new_min != maxduration) {
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if (GST_CLOCK_TIME_IS_VALID (new_min))
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GST_WARNING_OBJECT (element, "Failed to set the max-duration of the "
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"clip to %" GST_TIME_FORMAT " because it was not possible to "
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"match this with the actual minimum of %" GST_TIME_FORMAT,
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GST_TIME_ARGS (maxduration), GST_TIME_ARGS (new_min));
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else
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GST_WARNING_OBJECT (element, "Failed to set the max-duration of the "
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"clip to %" GST_TIME_FORMAT " because it has no core children "
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"whose max-duration could be set to anything other than "
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"GST_CLOCK_TIME_NONE", GST_TIME_ARGS (maxduration));
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priv->updating_max_duration = TRUE;
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ges_timeline_element_set_max_duration (element, new_min);
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priv->updating_max_duration = FALSE;
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return FALSE;
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}
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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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GESClipPrivate *priv = GES_CLIP (element)->priv;
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GList *tmp;
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guint32 min_prio, max_prio;
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GESContainer *container = GES_CONTAINER (element);
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/* send the new 'priority' to determine what the new 'min_prio' should
|
|
* be for the clip */
|
|
_get_priority_range_full (container, &min_prio, &max_prio, priority);
|
|
|
|
/* offsets will remain constant for the children */
|
|
priv->prevent_resort = TRUE;
|
|
priv->prevent_priority_offset_update = TRUE;
|
|
for (tmp = container->children; tmp; tmp = g_list_next (tmp)) {
|
|
guint32 track_element_prio;
|
|
GESTimelineElement *child = (GESTimelineElement *) tmp->data;
|
|
gint off = _ges_container_get_priority_offset (container, child);
|
|
|
|
if (off >= LAYER_HEIGHT) {
|
|
GST_ERROR ("%s child %s as a priority offset %d >= LAYER_HEIGHT %d"
|
|
" ==> clamping it to 0", GES_TIMELINE_ELEMENT_NAME (element),
|
|
GES_TIMELINE_ELEMENT_NAME (child), off, LAYER_HEIGHT);
|
|
off = 0;
|
|
}
|
|
|
|
/* Want the priority offset 'off' of each child to stay the same with
|
|
* the new priority. The offset is calculated from
|
|
* offset = min_priority - child_priority
|
|
*/
|
|
track_element_prio = min_prio - off;
|
|
|
|
if (track_element_prio > max_prio) {
|
|
GST_WARNING ("%p priority of %i, is outside of the its containing "
|
|
"layer space. (%d/%d) setting it to the maximum it can be",
|
|
container, priority, min_prio, max_prio);
|
|
|
|
track_element_prio = max_prio;
|
|
}
|
|
_set_priority0 (child, track_element_prio);
|
|
}
|
|
/* no need to re-sort the container since we maintained the relative
|
|
* offsets. As such, the height remains the same as well. */
|
|
priv->prevent_resort = FALSE;
|
|
priv->prevent_priority_offset_update = FALSE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static guint32
|
|
_get_layer_priority (GESTimelineElement * element)
|
|
{
|
|
GESClip *clip = GES_CLIP (element);
|
|
|
|
if (clip->priv->layer == NULL)
|
|
return GES_TIMELINE_ELEMENT_NO_LAYER_PRIORITY;
|
|
|
|
return ges_layer_get_priority (clip->priv->layer);
|
|
}
|
|
|
|
static gboolean
|
|
_get_natural_framerate (GESTimelineElement * self, gint * framerate_n,
|
|
gint * framerate_d)
|
|
{
|
|
GESAsset *asset = ges_extractable_get_asset (GES_EXTRACTABLE (self));
|
|
|
|
if (!asset) {
|
|
GST_WARNING_OBJECT (self, "No asset set?");
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
return ges_clip_asset_get_natural_framerate (GES_CLIP_ASSET (asset),
|
|
framerate_n, framerate_d);
|
|
}
|
|
|
|
/****************************************************
|
|
* *
|
|
* GESContainer virtual methods implementation *
|
|
* *
|
|
****************************************************/
|
|
|
|
static void
|
|
_compute_height (GESContainer * container)
|
|
{
|
|
GList *tmp;
|
|
guint32 min_prio = G_MAXUINT32, max_prio = 0;
|
|
|
|
if (container->children == NULL) {
|
|
/* FIXME Why not 0! */
|
|
_ges_container_set_height (container, 1);
|
|
return;
|
|
}
|
|
|
|
/* Go over all childs and check if height has changed */
|
|
for (tmp = container->children; tmp; tmp = tmp->next) {
|
|
guint tck_priority = _PRIORITY (tmp->data);
|
|
|
|
if (tck_priority < min_prio)
|
|
min_prio = tck_priority;
|
|
if (tck_priority > max_prio)
|
|
max_prio = tck_priority;
|
|
}
|
|
|
|
_ges_container_set_height (container, max_prio - min_prio + 1);
|
|
}
|
|
|
|
static gboolean
|
|
_add_child (GESContainer * container, GESTimelineElement * element)
|
|
{
|
|
GESClipClass *klass = GES_CLIP_GET_CLASS (GES_CLIP (container));
|
|
guint max_prio, min_prio;
|
|
GESClipPrivate *priv = GES_CLIP (container)->priv;
|
|
GList *child_core_owners;
|
|
|
|
g_return_val_if_fail (GES_IS_TRACK_ELEMENT (element), FALSE);
|
|
|
|
if (element->timeline
|
|
&& element->timeline != GES_TIMELINE_ELEMENT_TIMELINE (container)) {
|
|
GST_WARNING_OBJECT (container, "Can not add the child %" GES_FORMAT
|
|
" because its timeline is %" GST_PTR_FORMAT " rather than the "
|
|
"clip's timeline %" GST_PTR_FORMAT, GES_ARGS (element),
|
|
element->timeline, GES_TIMELINE_ELEMENT_TIMELINE (container));
|
|
return FALSE;
|
|
}
|
|
|
|
child_core_owners =
|
|
ges_track_element_get_owners (GES_TRACK_ELEMENT (element));
|
|
if (child_core_owners
|
|
&& !g_list_find (child_core_owners, GES_CLIP (container))) {
|
|
GST_WARNING_OBJECT (container,
|
|
"Can not add child %" GES_FORMAT " because we are not in it core owner"
|
|
" element list", GES_ARGS (element));
|
|
return FALSE;
|
|
}
|
|
|
|
/* NOTE: notifies are currently frozen by ges_container_add */
|
|
_get_priority_range (container, &min_prio, &max_prio);
|
|
if (child_core_owners) {
|
|
/* NOTE: Core track elements that are base effects are added like any
|
|
* other core clip. In particular, they are *not* added to the list of
|
|
* added effects, so we don not increase nb_effects. */
|
|
|
|
/* Set the core element to have the same in-point, which we don't
|
|
* apply to effects */
|
|
if (ges_track_element_has_internal_source (GES_TRACK_ELEMENT (element))) {
|
|
/* adding can fail if the max-duration of the element is smaller
|
|
* than the current in-point of the clip */
|
|
if (!_set_inpoint0 (element, _INPOINT (container))) {
|
|
GST_ERROR_OBJECT (element, "Could not set the in-point of the "
|
|
"element %" GES_FORMAT " to %" GST_TIME_FORMAT ". Not adding "
|
|
"as a child", GES_ARGS (element),
|
|
GST_TIME_ARGS (_INPOINT (container)));
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/* Always add at the same priority, on top of existing effects */
|
|
_set_priority0 (element, min_prio + priv->nb_effects);
|
|
} else if (GES_CLIP_CLASS_CAN_ADD_EFFECTS (klass) &&
|
|
GES_IS_BASE_EFFECT (element)) {
|
|
GList *tmp;
|
|
/* Add the effect at the lowest priority among effects (just after
|
|
* the core elements). Need to shift the core elements up by 1
|
|
* to make room. */
|
|
GST_DEBUG_OBJECT (container, "Adding %ith effect: %" GES_FORMAT
|
|
" Priority %i", priv->nb_effects + 1, GES_ARGS (element),
|
|
min_prio + priv->nb_effects);
|
|
|
|
/* changing priorities, and updating their offset */
|
|
priv->prevent_resort = TRUE;
|
|
tmp = g_list_nth (GES_CONTAINER_CHILDREN (container), priv->nb_effects);
|
|
for (; tmp; tmp = tmp->next)
|
|
ges_timeline_element_set_priority (GES_TIMELINE_ELEMENT (tmp->data),
|
|
GES_TIMELINE_ELEMENT_PRIORITY (tmp->data) + 1);
|
|
|
|
_set_priority0 (element, min_prio + priv->nb_effects);
|
|
priv->nb_effects++;
|
|
priv->prevent_resort = FALSE;
|
|
/* no need to call _ges_container_sort_children (container) since
|
|
* there is no change to the ordering yet (this happens after the
|
|
* child is actually added) */
|
|
/* The height has already changed (increased by 1) */
|
|
_compute_height (container);
|
|
} else {
|
|
if (GES_IS_BASE_EFFECT (element))
|
|
GST_WARNING_OBJECT (container, "Can not add the effect %" GES_FORMAT
|
|
" because it is not a core element created by the clip itself "
|
|
"and the %s class does not allow for the adding extra effects",
|
|
GES_ARGS (element), G_OBJECT_CLASS_NAME (klass));
|
|
else if (GES_CLIP_CLASS_CAN_ADD_EFFECTS (klass))
|
|
GST_WARNING_OBJECT (container, "Can not add the track element %"
|
|
GES_FORMAT " because it is neither a core element created by "
|
|
"the clip itself, nor a GESBaseEffect", GES_ARGS (element));
|
|
else
|
|
GST_WARNING_OBJECT (container, "Can not add the track element %"
|
|
GES_FORMAT " because it is not a core element created by the "
|
|
"clip itself", GES_ARGS (element));
|
|
return FALSE;
|
|
}
|
|
|
|
_set_start0 (element, GES_TIMELINE_ELEMENT_START (container));
|
|
_set_duration0 (element, GES_TIMELINE_ELEMENT_DURATION (container));
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
_remove_child (GESContainer * container, GESTimelineElement * element)
|
|
{
|
|
GESClipPrivate *priv = GES_CLIP (container)->priv;
|
|
|
|
/* NOTE: notifies are currently frozen by ges_container_add */
|
|
if (!ges_track_element_get_owners (GES_TRACK_ELEMENT (element))
|
|
&& GES_IS_BASE_EFFECT (element)) {
|
|
GList *tmp;
|
|
GST_DEBUG_OBJECT (container, "Resyncing effects priority.");
|
|
|
|
/* changing priorities, so preventing a re-sort */
|
|
priv->prevent_resort = TRUE;
|
|
for (tmp = GES_CONTAINER_CHILDREN (container); tmp; tmp = tmp->next) {
|
|
guint32 sibling_prio = GES_TIMELINE_ELEMENT_PRIORITY (tmp->data);
|
|
if (sibling_prio > element->priority)
|
|
ges_timeline_element_set_priority (GES_TIMELINE_ELEMENT (tmp->data),
|
|
sibling_prio - 1);
|
|
}
|
|
priv->nb_effects--;
|
|
priv->prevent_resort = FALSE;
|
|
/* no need to re-sort the children since the rest keep the same
|
|
* relative priorities */
|
|
/* height may have changed */
|
|
_compute_height (container);
|
|
}
|
|
/* Core owner is not reset so that the child can be readded here in @container
|
|
* but not in any other clip by the end user */
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
_child_added (GESContainer * container, GESTimelineElement * element)
|
|
{
|
|
g_signal_connect (G_OBJECT (element), "notify::priority",
|
|
G_CALLBACK (_child_priority_changed_cb), container);
|
|
g_signal_connect (G_OBJECT (element), "notify::in-point",
|
|
G_CALLBACK (_child_inpoint_changed_cb), container);
|
|
g_signal_connect (G_OBJECT (element), "notify::max-duration",
|
|
G_CALLBACK (_child_max_duration_changed_cb), container);
|
|
g_signal_connect (G_OBJECT (element), "notify::has-internal-source",
|
|
G_CALLBACK (_child_has_internal_source_changed_cb), container);
|
|
|
|
_child_priority_changed_cb (element, NULL, container);
|
|
_update_max_duration (container);
|
|
}
|
|
|
|
static void
|
|
_child_removed (GESContainer * container, GESTimelineElement * element)
|
|
{
|
|
g_signal_handlers_disconnect_by_func (element, _child_priority_changed_cb,
|
|
container);
|
|
g_signal_handlers_disconnect_by_func (element, _child_inpoint_changed_cb,
|
|
container);
|
|
g_signal_handlers_disconnect_by_func (element,
|
|
_child_max_duration_changed_cb, container);
|
|
g_signal_handlers_disconnect_by_func (element,
|
|
_child_has_internal_source_changed_cb, container);
|
|
|
|
_update_max_duration (container);
|
|
}
|
|
|
|
static void
|
|
add_clip_to_list (gpointer key, gpointer clip, GList ** list)
|
|
{
|
|
*list = g_list_prepend (*list, gst_object_ref (clip));
|
|
}
|
|
|
|
static void
|
|
_transfer_child (GESClip * from_clip, GESClip * to_clip,
|
|
GESTrackElement * child)
|
|
{
|
|
/* We need to bump the refcount to avoid the object to be destroyed */
|
|
gst_object_ref (child);
|
|
ges_container_remove (GES_CONTAINER (from_clip),
|
|
GES_TIMELINE_ELEMENT (child));
|
|
|
|
if (ges_track_element_get_owners (GES_TRACK_ELEMENT (child)))
|
|
ges_track_element_add_owner (GES_TRACK_ELEMENT (child), to_clip);
|
|
|
|
ges_container_add (GES_CONTAINER (to_clip), GES_TIMELINE_ELEMENT (child));
|
|
gst_object_unref (child);
|
|
}
|
|
|
|
static GList *
|
|
_ungroup (GESContainer * container, gboolean recursive)
|
|
{
|
|
GESClip *tmpclip;
|
|
GESTrackType track_type;
|
|
GESTrackElement *track_element;
|
|
|
|
gboolean first_obj = TRUE;
|
|
GList *tmp, *children, *ret = NULL;
|
|
GESClip *clip = GES_CLIP (container);
|
|
GESTimelineElement *element = GES_TIMELINE_ELEMENT (container);
|
|
GESLayer *layer = clip->priv->layer;
|
|
GHashTable *_tracktype_clip = g_hash_table_new (g_int_hash, g_int_equal);
|
|
|
|
/* If there is no TrackElement, just return @container in a list */
|
|
if (GES_CONTAINER_CHILDREN (container) == NULL) {
|
|
GST_DEBUG ("No TrackElement, simply returning");
|
|
return g_list_prepend (ret, container);
|
|
}
|
|
|
|
/* We need a copy of the current list of tracks */
|
|
children = ges_container_get_children (container, FALSE);
|
|
for (tmp = children; tmp; tmp = tmp->next) {
|
|
track_element = GES_TRACK_ELEMENT (tmp->data);
|
|
track_type = ges_track_element_get_track_type (track_element);
|
|
|
|
tmpclip = g_hash_table_lookup (_tracktype_clip, &track_type);
|
|
if (tmpclip == NULL) {
|
|
if (G_UNLIKELY (first_obj == TRUE)) {
|
|
tmpclip = clip;
|
|
first_obj = FALSE;
|
|
} else {
|
|
tmpclip = GES_CLIP (ges_timeline_element_copy (element, FALSE));
|
|
if (layer) {
|
|
/* Add new container to the same layer as @container */
|
|
ges_clip_set_moving_from_layer (tmpclip, TRUE);
|
|
ges_layer_add_clip (layer, tmpclip);
|
|
ges_clip_set_moving_from_layer (tmpclip, FALSE);
|
|
}
|
|
}
|
|
|
|
g_hash_table_insert (_tracktype_clip, &track_type, tmpclip);
|
|
ges_clip_set_supported_formats (tmpclip, track_type);
|
|
}
|
|
|
|
/* Move trackelement to the container it is supposed to land into */
|
|
if (tmpclip != clip)
|
|
_transfer_child (clip, tmpclip, track_element);
|
|
}
|
|
g_list_free_full (children, gst_object_unref);
|
|
g_hash_table_foreach (_tracktype_clip, (GHFunc) add_clip_to_list, &ret);
|
|
g_hash_table_unref (_tracktype_clip);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static GESContainer *
|
|
_group (GList * containers)
|
|
{
|
|
CheckTrack *tracks = NULL;
|
|
GESTimeline *timeline = NULL;
|
|
GESTrackType supported_formats;
|
|
GESLayer *layer = NULL;
|
|
GList *tmp, *tmpclip, *tmpelement;
|
|
GstClockTime start, inpoint, duration;
|
|
|
|
GESAsset *asset = NULL;
|
|
GESContainer *ret = NULL;
|
|
guint nb_tracks = 0, i = 0;
|
|
|
|
start = inpoint = duration = GST_CLOCK_TIME_NONE;
|
|
|
|
if (!containers)
|
|
return NULL;
|
|
|
|
/* First check if all the containers are clips, if they
|
|
* all have the same start/inpoint/duration and are in the same
|
|
* layer.
|
|
*
|
|
* We also need to make sure that all source have been created by the
|
|
* same asset, keep the information */
|
|
for (tmp = containers; tmp; tmp = tmp->next) {
|
|
GESClip *clip;
|
|
GESTimeline *tmptimeline;
|
|
GESContainer *tmpcontainer;
|
|
GESTimelineElement *element;
|
|
|
|
tmpcontainer = GES_CONTAINER (tmp->data);
|
|
element = GES_TIMELINE_ELEMENT (tmp->data);
|
|
if (GES_IS_CLIP (element) == FALSE) {
|
|
GST_DEBUG ("Can only work with clips");
|
|
goto done;
|
|
}
|
|
clip = GES_CLIP (tmp->data);
|
|
tmptimeline = GES_TIMELINE_ELEMENT_TIMELINE (element);
|
|
if (!timeline) {
|
|
GList *tmptrack;
|
|
|
|
start = _START (tmpcontainer);
|
|
inpoint = _INPOINT (tmpcontainer);
|
|
duration = _DURATION (tmpcontainer);
|
|
timeline = tmptimeline;
|
|
layer = clip->priv->layer;
|
|
nb_tracks = g_list_length (GES_TIMELINE_GET_TRACKS (timeline));
|
|
tracks = g_new0 (CheckTrack, nb_tracks);
|
|
|
|
for (tmptrack = GES_TIMELINE_GET_TRACKS (timeline); tmptrack;
|
|
tmptrack = tmptrack->next) {
|
|
tracks[i].track = tmptrack->data;
|
|
i++;
|
|
}
|
|
} else {
|
|
/* FIXME: we should allow the inpoint to be different if not a
|
|
* core track element of the clip.
|
|
* E.g. a GESEffect on a GESUriClip */
|
|
if (start != _START (tmpcontainer) ||
|
|
inpoint != _INPOINT (tmpcontainer) ||
|
|
duration != _DURATION (tmpcontainer) || clip->priv->layer != layer) {
|
|
GST_INFO ("All children must have the same start, inpoint, duration "
|
|
"and be in the same layer");
|
|
|
|
goto done;
|
|
} else {
|
|
GList *tmp2;
|
|
|
|
for (tmp2 = GES_CONTAINER_CHILDREN (tmp->data); tmp2; tmp2 = tmp2->next) {
|
|
GESTrackElement *track_element = GES_TRACK_ELEMENT (tmp2->data);
|
|
|
|
if (GES_IS_SOURCE (track_element)) {
|
|
guint i;
|
|
|
|
for (i = 0; i < nb_tracks; i++) {
|
|
if (tracks[i].track ==
|
|
ges_track_element_get_track (track_element)) {
|
|
if (tracks[i].source) {
|
|
GST_INFO ("Can not link clips with various source for a "
|
|
"same track");
|
|
|
|
goto done;
|
|
}
|
|
tracks[i].source = track_element;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/* Then check that all sources have been created by the same asset,
|
|
* otherwise we can not group */
|
|
for (i = 0; i < nb_tracks; i++) {
|
|
if (tracks[i].source == NULL) {
|
|
GST_FIXME ("Check what to do here as we might end up having a mess");
|
|
|
|
continue;
|
|
}
|
|
|
|
/* FIXME Check what to do if we have source that have no assets */
|
|
if (!asset) {
|
|
asset =
|
|
ges_extractable_get_asset (GES_EXTRACTABLE
|
|
(ges_timeline_element_get_parent (GES_TIMELINE_ELEMENT (tracks
|
|
[i].source))));
|
|
continue;
|
|
}
|
|
if (asset !=
|
|
ges_extractable_get_asset (GES_EXTRACTABLE
|
|
(ges_timeline_element_get_parent (GES_TIMELINE_ELEMENT (tracks
|
|
[i].source))))) {
|
|
GST_INFO ("Can not link clips with source coming from different assets");
|
|
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
/* And now pass all TrackElements to the first clip,
|
|
* and remove others from the layer (updating the supported formats) */
|
|
ret = containers->data;
|
|
supported_formats = GES_CLIP (ret)->priv->supportedformats;
|
|
for (tmpclip = containers->next; tmpclip; tmpclip = tmpclip->next) {
|
|
GESClip *cclip = tmpclip->data;
|
|
GList *children = ges_container_get_children (GES_CONTAINER (cclip), FALSE);
|
|
|
|
for (tmpelement = children; tmpelement; tmpelement = tmpelement->next) {
|
|
GESTrackElement *celement = GES_TRACK_ELEMENT (tmpelement->data);
|
|
_transfer_child (cclip, GES_CLIP (ret), celement);
|
|
supported_formats |= ges_track_element_get_track_type (celement);
|
|
}
|
|
g_list_free_full (children, gst_object_unref);
|
|
|
|
ges_layer_remove_clip (layer, tmpclip->data);
|
|
}
|
|
|
|
ges_clip_set_supported_formats (GES_CLIP (ret), supported_formats);
|
|
|
|
done:
|
|
if (tracks)
|
|
g_free (tracks);
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
static void
|
|
_deep_copy (GESTimelineElement * element, GESTimelineElement * copy)
|
|
{
|
|
GList *tmp;
|
|
GESClip *self = GES_CLIP (element), *ccopy = GES_CLIP (copy);
|
|
GESTrackElement *el, *el_copy;
|
|
|
|
if (!self->priv->layer)
|
|
return;
|
|
|
|
for (tmp = GES_CONTAINER_CHILDREN (element); tmp; tmp = tmp->next) {
|
|
el = GES_TRACK_ELEMENT (tmp->data);
|
|
/* copies the children properties */
|
|
el_copy = GES_TRACK_ELEMENT (ges_timeline_element_copy (tmp->data, TRUE));
|
|
|
|
if (ges_track_element_get_owners (el))
|
|
ges_track_element_add_owner (el_copy, ccopy);
|
|
|
|
ges_track_element_copy_bindings (el, el_copy, GST_CLOCK_TIME_NONE);
|
|
ccopy->priv->copied_track_elements =
|
|
g_list_append (ccopy->priv->copied_track_elements, el_copy);
|
|
}
|
|
|
|
ccopy->priv->copied_layer = g_object_ref (self->priv->layer);
|
|
}
|
|
|
|
static GESTimelineElement *
|
|
_paste (GESTimelineElement * element, GESTimelineElement * ref,
|
|
GstClockTime paste_position)
|
|
{
|
|
GList *tmp;
|
|
GESClip *self = GES_CLIP (element);
|
|
GESClip *nclip = GES_CLIP (ges_timeline_element_copy (element, FALSE));
|
|
|
|
if (self->priv->copied_layer)
|
|
nclip->priv->copied_layer = g_object_ref (self->priv->copied_layer);
|
|
ges_timeline_element_set_start (GES_TIMELINE_ELEMENT (nclip), paste_position);
|
|
|
|
for (tmp = self->priv->copied_track_elements; tmp; tmp = tmp->next) {
|
|
GESTrackElement *new_trackelement, *trackelement =
|
|
GES_TRACK_ELEMENT (tmp->data);
|
|
|
|
/* NOTE: we do not deep copy the track element, we instead call
|
|
* ges_track_element_copy_properties explicitly, which is the
|
|
* deep_copy for the GESTrackElementClass. */
|
|
new_trackelement =
|
|
GES_TRACK_ELEMENT (ges_timeline_element_copy (GES_TIMELINE_ELEMENT
|
|
(trackelement), FALSE));
|
|
if (new_trackelement == NULL) {
|
|
GST_WARNING_OBJECT (trackelement, "Could not create a copy");
|
|
continue;
|
|
}
|
|
|
|
if (ges_track_element_get_owners (trackelement))
|
|
ges_track_element_add_owner (new_trackelement, nclip);
|
|
|
|
ges_container_add (GES_CONTAINER (nclip),
|
|
GES_TIMELINE_ELEMENT (new_trackelement));
|
|
|
|
ges_track_element_copy_properties (GES_TIMELINE_ELEMENT (trackelement),
|
|
GES_TIMELINE_ELEMENT (new_trackelement));
|
|
|
|
ges_track_element_copy_bindings (trackelement, new_trackelement,
|
|
GST_CLOCK_TIME_NONE);
|
|
}
|
|
|
|
/* FIXME: should we bypass the select-tracks-for-object signal when
|
|
* copying and pasting? */
|
|
if (self->priv->copied_layer) {
|
|
if (!ges_layer_add_clip (self->priv->copied_layer, nclip)) {
|
|
GST_INFO ("%" GES_FORMAT " could not be pasted to %" GST_TIME_FORMAT,
|
|
GES_ARGS (element), GST_TIME_ARGS (paste_position));
|
|
|
|
return NULL;
|
|
}
|
|
|
|
}
|
|
|
|
return GES_TIMELINE_ELEMENT (nclip);
|
|
}
|
|
|
|
static gboolean
|
|
_lookup_child (GESTimelineElement * self, const gchar * prop_name,
|
|
GObject ** child, GParamSpec ** pspec)
|
|
{
|
|
GList *tmp;
|
|
|
|
if (GES_TIMELINE_ELEMENT_CLASS (ges_clip_parent_class)->lookup_child (self,
|
|
prop_name, child, pspec))
|
|
return TRUE;
|
|
|
|
for (tmp = GES_CONTAINER_CHILDREN (self); tmp; tmp = tmp->next) {
|
|
if (ges_timeline_element_lookup_child (tmp->data, prop_name, child, pspec))
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/****************************************************
|
|
* *
|
|
* GObject virtual methods implementation *
|
|
* *
|
|
****************************************************/
|
|
static void
|
|
ges_clip_get_property (GObject * object, guint property_id,
|
|
GValue * value, GParamSpec * pspec)
|
|
{
|
|
GESClip *clip = GES_CLIP (object);
|
|
|
|
switch (property_id) {
|
|
case PROP_LAYER:
|
|
g_value_set_object (value, clip->priv->layer);
|
|
break;
|
|
case PROP_SUPPORTED_FORMATS:
|
|
g_value_set_flags (value, clip->priv->supportedformats);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
|
|
}
|
|
}
|
|
|
|
static void
|
|
ges_clip_set_property (GObject * object, guint property_id,
|
|
const GValue * value, GParamSpec * pspec)
|
|
{
|
|
GESClip *clip = GES_CLIP (object);
|
|
|
|
switch (property_id) {
|
|
case PROP_SUPPORTED_FORMATS:
|
|
ges_clip_set_supported_formats (clip, g_value_get_flags (value));
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
|
|
}
|
|
}
|
|
|
|
static void
|
|
ges_clip_dispose (GObject * object)
|
|
{
|
|
GESClip *self = GES_CLIP (object);
|
|
|
|
g_list_free_full (self->priv->copied_track_elements, g_object_unref);
|
|
self->priv->copied_track_elements = NULL;
|
|
g_clear_object (&self->priv->copied_layer);
|
|
|
|
G_OBJECT_CLASS (ges_clip_parent_class)->dispose (object);
|
|
}
|
|
|
|
|
|
static void
|
|
ges_clip_class_init (GESClipClass * klass)
|
|
{
|
|
GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
|
GESContainerClass *container_class = GES_CONTAINER_CLASS (klass);
|
|
GESTimelineElementClass *element_class = GES_TIMELINE_ELEMENT_CLASS (klass);
|
|
|
|
object_class->get_property = ges_clip_get_property;
|
|
object_class->set_property = ges_clip_set_property;
|
|
object_class->dispose = ges_clip_dispose;
|
|
klass->create_track_elements = ges_clip_create_track_elements_func;
|
|
klass->create_track_element = NULL;
|
|
|
|
/**
|
|
* GESClip:supported-formats:
|
|
*
|
|
* The #GESTrackType-s that the clip supports, which it can create
|
|
* #GESTrackElement-s for. Note that this can be a combination of
|
|
* #GESTrackType flags to indicate support for several
|
|
* #GESTrackElement:track-type elements.
|
|
*/
|
|
properties[PROP_SUPPORTED_FORMATS] = g_param_spec_flags ("supported-formats",
|
|
"Supported formats", "Formats supported by the clip",
|
|
GES_TYPE_TRACK_TYPE, GES_TRACK_TYPE_AUDIO | GES_TRACK_TYPE_VIDEO,
|
|
G_PARAM_READWRITE | G_PARAM_CONSTRUCT);
|
|
|
|
g_object_class_install_property (object_class, PROP_SUPPORTED_FORMATS,
|
|
properties[PROP_SUPPORTED_FORMATS]);
|
|
|
|
/**
|
|
* GESClip:layer:
|
|
*
|
|
* The layer this clip lies in.
|
|
*
|
|
* If you want to connect to this property's #GObject::notify signal,
|
|
* you should connect to it with g_signal_connect_after() since the
|
|
* signal emission may be stopped internally.
|
|
*/
|
|
properties[PROP_LAYER] = g_param_spec_object ("layer", "Layer",
|
|
"The GESLayer where this clip is being used.",
|
|
GES_TYPE_LAYER, G_PARAM_READABLE);
|
|
g_object_class_install_property (object_class, PROP_LAYER,
|
|
properties[PROP_LAYER]);
|
|
|
|
element_class->ripple = _ripple;
|
|
element_class->ripple_end = _ripple_end;
|
|
element_class->roll_start = _roll_start;
|
|
element_class->roll_end = _roll_end;
|
|
element_class->trim = _trim;
|
|
element_class->set_start = _set_start;
|
|
element_class->set_duration = _set_duration;
|
|
element_class->set_inpoint = _set_inpoint;
|
|
element_class->set_priority = _set_priority;
|
|
element_class->set_max_duration = _set_max_duration;
|
|
element_class->paste = _paste;
|
|
element_class->deep_copy = _deep_copy;
|
|
element_class->lookup_child = _lookup_child;
|
|
element_class->get_layer_priority = _get_layer_priority;
|
|
element_class->get_natural_framerate = _get_natural_framerate;
|
|
|
|
container_class->add_child = _add_child;
|
|
container_class->remove_child = _remove_child;
|
|
container_class->child_removed = _child_removed;
|
|
container_class->child_added = _child_added;
|
|
container_class->ungroup = _ungroup;
|
|
container_class->group = _group;
|
|
container_class->grouping_priority = G_MAXUINT;
|
|
}
|
|
|
|
static void
|
|
ges_clip_init (GESClip * self)
|
|
{
|
|
GESClipPrivate *priv;
|
|
priv = self->priv = ges_clip_get_instance_private (self);
|
|
priv->layer = NULL;
|
|
priv->nb_effects = 0;
|
|
priv->prevent_priority_offset_update = FALSE;
|
|
priv->prevent_resort = FALSE;
|
|
priv->updating_max_duration = FALSE;
|
|
priv->prevent_max_duration_update = FALSE;
|
|
priv->setting_inpoint = FALSE;
|
|
}
|
|
|
|
/**
|
|
* ges_clip_create_track_element:
|
|
* @clip: A #GESClip
|
|
* @type: The track to create an element for
|
|
*
|
|
* Creates the core #GESTrackElement of the clip, of the given track type.
|
|
*
|
|
* Note, unlike ges_clip_create_track_elements(), this does not add the
|
|
* created track element to the clip or set their timings.
|
|
*
|
|
* Returns: (transfer floating) (nullable): The element created
|
|
* by @clip, or %NULL if @clip can not provide a track element for the
|
|
* given @type or an error occurred.
|
|
*/
|
|
GESTrackElement *
|
|
ges_clip_create_track_element (GESClip * clip, GESTrackType type)
|
|
{
|
|
GESClipClass *class;
|
|
GESTrackElement *res;
|
|
|
|
g_return_val_if_fail (GES_IS_CLIP (clip), NULL);
|
|
|
|
GST_DEBUG_OBJECT (clip, "Creating track element for %s",
|
|
ges_track_type_name (type));
|
|
if (!(type & clip->priv->supportedformats)) {
|
|
GST_DEBUG_OBJECT (clip, "We don't support this track type %i", type);
|
|
return NULL;
|
|
}
|
|
|
|
class = GES_CLIP_GET_CLASS (clip);
|
|
|
|
if (G_UNLIKELY (class->create_track_element == NULL)) {
|
|
GST_ERROR ("No 'create_track_element' implementation available fo type %s",
|
|
G_OBJECT_TYPE_NAME (clip));
|
|
return NULL;
|
|
}
|
|
|
|
res = class->create_track_element (clip, type);
|
|
return res;
|
|
|
|
}
|
|
|
|
/**
|
|
* ges_clip_create_track_elements:
|
|
* @clip: A #GESClip
|
|
* @type: The track-type to create elements for
|
|
*
|
|
* Creates the core #GESTrackElement-s of the clip, of the given track
|
|
* type, and adds them to the clip.
|
|
*
|
|
* Returns: (transfer container) (element-type GESTrackElement): A list of
|
|
* the #GESTrackElement-s created by @clip for the given @type, or %NULL
|
|
* if no track elements are created or an error occurred.
|
|
*/
|
|
|
|
GList *
|
|
ges_clip_create_track_elements (GESClip * clip, GESTrackType type)
|
|
{
|
|
GList *result = NULL, *tmp, *children;
|
|
GESClipClass *klass;
|
|
gboolean readding_effects_only = TRUE;
|
|
|
|
g_return_val_if_fail (GES_IS_CLIP (clip), NULL);
|
|
|
|
klass = GES_CLIP_GET_CLASS (clip);
|
|
|
|
if (!(klass->create_track_elements)) {
|
|
GST_WARNING ("no GESClip::create_track_elements implentation");
|
|
return NULL;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (clip, "Creating TrackElements for type: %s",
|
|
ges_track_type_name (type));
|
|
children = ges_container_get_children (GES_CONTAINER (clip), TRUE);
|
|
for (tmp = children; tmp; tmp = tmp->next) {
|
|
GESTrackElement *child = GES_TRACK_ELEMENT (tmp->data);
|
|
|
|
if (!ges_track_element_get_track (child)
|
|
&& ges_track_element_get_track_type (child) & type) {
|
|
GST_DEBUG_OBJECT (clip, "Removing for reusage: %" GST_PTR_FORMAT, child);
|
|
result = g_list_append (result, g_object_ref (child));
|
|
ges_container_remove (GES_CONTAINER (clip), tmp->data);
|
|
if (ges_track_element_get_owners (GES_TRACK_ELEMENT (child)))
|
|
readding_effects_only = FALSE;
|
|
}
|
|
}
|
|
g_list_free_full (children, gst_object_unref);
|
|
|
|
/* FIXME: we need something smarter to determine whether we should
|
|
* create the track elements.
|
|
* Currently, if the clip contains at least one element with a matching
|
|
* track-type, not in a track and not a GESBaseEffect, we will not
|
|
* recreate the track elements! But this is not a reliable indicator.
|
|
*
|
|
* For example, consider a uri clip that creates two audio track
|
|
* elements: El_A and El_B. First, we add the clip to a timeline that
|
|
* only has a single track: Track_A, and we connect to the timeline's
|
|
* ::select-tracks-for-object signal to only allow El_A to end up in
|
|
* Track_A. As such, whilst both El_A and El_B are initially created,
|
|
* El_B will eventually be removed from the clip since it has no track
|
|
* (see clip_track_element_added_cb in ges-timeline.c). As such, we now
|
|
* have a clip that only contains El_A.
|
|
* Next, we remove Track_A from the timeline. El_A will remain a child
|
|
* of the clip, but now has its track unset.
|
|
* Next, we add Track_B to the timeline, and we connect to the
|
|
* timeline's ::select-tracks-for-object signal to only allow El_B to
|
|
* end up in Track_B.
|
|
*
|
|
* However, since the clip contains an audio track element, that is not
|
|
* an effect and has no track set: El_A. Therefore, the
|
|
* create_track_elements method below will not be called, so we will not
|
|
* have an El_B created for Track_B!
|
|
*
|
|
* Moreover, even if we did recreate the track elements, we would be
|
|
* creating El_A again! We could destroy and recreate El_A instead, or
|
|
* we would need a way to determine exactly which elements need to be
|
|
* recreated.
|
|
*/
|
|
if (readding_effects_only) {
|
|
GList *track_elements = klass->create_track_elements (clip, type);
|
|
for (tmp = track_elements; tmp; tmp = tmp->next)
|
|
ges_track_element_add_owner (tmp->data, clip);
|
|
result = g_list_concat (track_elements, result);
|
|
}
|
|
|
|
for (tmp = result; tmp; tmp = tmp->next) {
|
|
ges_container_add (GES_CONTAINER (clip), GES_TIMELINE_ELEMENT (tmp->data));
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
/*
|
|
* default implementation of GESClipClass::create_track_elements
|
|
*/
|
|
GList *
|
|
ges_clip_create_track_elements_func (GESClip * clip, GESTrackType type)
|
|
{
|
|
GESTrackElement *result;
|
|
|
|
GST_DEBUG_OBJECT (clip, "Creating trackelement for track: %s",
|
|
ges_track_type_name (type));
|
|
result = ges_clip_create_track_element (clip, type);
|
|
if (!result) {
|
|
GST_DEBUG ("Did not create track element");
|
|
return NULL;
|
|
}
|
|
|
|
return g_list_append (NULL, result);
|
|
}
|
|
|
|
void
|
|
ges_clip_set_layer (GESClip * clip, GESLayer * layer)
|
|
{
|
|
if (layer == clip->priv->layer)
|
|
return;
|
|
|
|
clip->priv->layer = layer;
|
|
|
|
GST_DEBUG ("clip:%p, layer:%p", clip, layer);
|
|
|
|
/* We do not want to notify the setting of layer = NULL when
|
|
* it is actually the result of a move between layer (as we know
|
|
* that it will be added to another layer right after, and this
|
|
* is what imports here.) */
|
|
if (!ELEMENT_FLAG_IS_SET (clip, GES_CLIP_IS_MOVING))
|
|
g_object_notify_by_pspec (G_OBJECT (clip), properties[PROP_LAYER]);
|
|
}
|
|
|
|
/**
|
|
* ges_clip_set_moving_from_layer:
|
|
* @clip: A #GESClip
|
|
* @is_moving: %TRUE if you want to start moving @clip to another layer
|
|
* %FALSE when you finished moving it
|
|
*
|
|
* Sets the clip in a moving to layer state. You might rather use the
|
|
* ges_clip_move_to_layer function to move #GESClip-s
|
|
* from a layer to another.
|
|
**/
|
|
void
|
|
ges_clip_set_moving_from_layer (GESClip * clip, gboolean is_moving)
|
|
{
|
|
g_return_if_fail (GES_IS_CLIP (clip));
|
|
|
|
if (is_moving)
|
|
ELEMENT_SET_FLAG (clip, GES_CLIP_IS_MOVING);
|
|
else
|
|
ELEMENT_UNSET_FLAG (clip, GES_CLIP_IS_MOVING);
|
|
}
|
|
|
|
/**
|
|
* ges_clip_is_moving_from_layer:
|
|
* @clip: A #GESClip
|
|
*
|
|
* Tells you if the clip is currently moving from a layer to another.
|
|
* You might rather use the ges_clip_move_to_layer function to
|
|
* move #GESClip-s from a layer to another.
|
|
*
|
|
* Returns: %TRUE if @clip is currently moving from its current layer
|
|
* %FALSE otherwize.
|
|
**/
|
|
gboolean
|
|
ges_clip_is_moving_from_layer (GESClip * clip)
|
|
{
|
|
g_return_val_if_fail (GES_IS_CLIP (clip), FALSE);
|
|
|
|
return ELEMENT_FLAG_IS_SET (clip, GES_CLIP_IS_MOVING);
|
|
}
|
|
|
|
/**
|
|
* ges_clip_move_to_layer:
|
|
* @clip: A #GESClip
|
|
* @layer: The new layer
|
|
*
|
|
* Moves a clip to a new layer. If the clip already exists in a layer, it
|
|
* is first removed from its current layer before being added to the new
|
|
* layer.
|
|
*
|
|
* Returns: %TRUE if @clip was successfully moved to @layer.
|
|
*/
|
|
gboolean
|
|
ges_clip_move_to_layer (GESClip * clip, GESLayer * layer)
|
|
{
|
|
gboolean ret;
|
|
GESLayer *current_layer;
|
|
|
|
g_return_val_if_fail (GES_IS_CLIP (clip), FALSE);
|
|
g_return_val_if_fail (GES_IS_LAYER (layer), FALSE);
|
|
|
|
ELEMENT_SET_FLAG (clip, GES_CLIP_IS_MOVING);
|
|
if (layer->timeline
|
|
&& !timeline_tree_can_move_element (timeline_get_tree (layer->timeline),
|
|
GES_TIMELINE_ELEMENT (clip),
|
|
ges_layer_get_priority (layer),
|
|
GES_TIMELINE_ELEMENT_START (clip),
|
|
GES_TIMELINE_ELEMENT_DURATION (clip), NULL)) {
|
|
GST_INFO_OBJECT (layer, "Clip %" GES_FORMAT " can't move to layer %d",
|
|
GES_ARGS (clip), ges_layer_get_priority (layer));
|
|
ELEMENT_UNSET_FLAG (clip, GES_CLIP_IS_MOVING);
|
|
return FALSE;
|
|
}
|
|
|
|
current_layer = clip->priv->layer;
|
|
|
|
if (current_layer == NULL) {
|
|
GST_DEBUG ("Not moving %p, only adding it to %p", clip, layer);
|
|
|
|
return ges_layer_add_clip (layer, clip);
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (clip, "moving to layer %p, priority: %d", layer,
|
|
ges_layer_get_priority (layer));
|
|
|
|
gst_object_ref (clip);
|
|
ret = ges_layer_remove_clip (current_layer, clip);
|
|
|
|
if (!ret) {
|
|
ELEMENT_UNSET_FLAG (clip, GES_CLIP_IS_MOVING);
|
|
gst_object_unref (clip);
|
|
return FALSE;
|
|
}
|
|
|
|
ret = ges_layer_add_clip (layer, clip);
|
|
ELEMENT_UNSET_FLAG (clip, GES_CLIP_IS_MOVING);
|
|
|
|
gst_object_unref (clip);
|
|
g_object_notify_by_pspec (G_OBJECT (clip), properties[PROP_LAYER]);
|
|
|
|
|
|
return ret && (clip->priv->layer == layer);
|
|
}
|
|
|
|
/**
|
|
* ges_clip_find_track_element:
|
|
* @clip: A #GESClip
|
|
* @track: (allow-none): The track to search in, or %NULL to search in
|
|
* all tracks
|
|
* @type: The type of track element to search for, or `G_TYPE_NONE` to
|
|
* match any type
|
|
*
|
|
* Finds an element controlled by the clip. If @track is given,
|
|
* then only the track elements in @track are searched for. If @type is
|
|
* given, then this function searches for a track element of the given
|
|
* @type.
|
|
*
|
|
* Note, if multiple track elements in the clip match the given criteria,
|
|
* this will return the element amongst them with the highest
|
|
* #GESTimelineElement:priority (numerically, the smallest). See
|
|
* ges_clip_find_track_elements() if you wish to find all such elements.
|
|
*
|
|
* Returns: (transfer full) (nullable): The element controlled by
|
|
* @clip, in @track, and of the given @type, or %NULL if no such element
|
|
* could be found.
|
|
*/
|
|
|
|
GESTrackElement *
|
|
ges_clip_find_track_element (GESClip * clip, GESTrack * track, GType type)
|
|
{
|
|
GList *tmp;
|
|
GESTrackElement *otmp;
|
|
|
|
GESTrackElement *ret = NULL;
|
|
|
|
g_return_val_if_fail (GES_IS_CLIP (clip), NULL);
|
|
g_return_val_if_fail (!(track == NULL && type == G_TYPE_NONE), NULL);
|
|
|
|
for (tmp = GES_CONTAINER_CHILDREN (clip); tmp; tmp = g_list_next (tmp)) {
|
|
otmp = (GESTrackElement *) tmp->data;
|
|
|
|
if ((type != G_TYPE_NONE) && !G_TYPE_CHECK_INSTANCE_TYPE (tmp->data, type))
|
|
continue;
|
|
|
|
if ((track == NULL) || (ges_track_element_get_track (otmp) == track)) {
|
|
ret = GES_TRACK_ELEMENT (tmp->data);
|
|
gst_object_ref (ret);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* ges_clip_get_layer:
|
|
* @clip: A #GESClip
|
|
*
|
|
* Gets the #GESClip:layer of the clip.
|
|
*
|
|
* Returns: (transfer full) (nullable): The layer @clip is in, or %NULL if
|
|
* @clip is not in any layer.
|
|
*/
|
|
GESLayer *
|
|
ges_clip_get_layer (GESClip * clip)
|
|
{
|
|
g_return_val_if_fail (GES_IS_CLIP (clip), NULL);
|
|
|
|
if (clip->priv->layer != NULL)
|
|
gst_object_ref (G_OBJECT (clip->priv->layer));
|
|
|
|
return clip->priv->layer;
|
|
}
|
|
|
|
/**
|
|
* ges_clip_get_top_effects:
|
|
* @clip: A #GESClip
|
|
*
|
|
* Gets the #GESBaseEffect-s that have been added to the clip. The
|
|
* returned list is ordered by their internal index in the clip. See
|
|
* ges_clip_get_top_effect_index().
|
|
*
|
|
* Returns: (transfer full) (element-type GESTrackElement): A list of all
|
|
* #GESBaseEffect-s that have been added to @clip.
|
|
*/
|
|
GList *
|
|
ges_clip_get_top_effects (GESClip * clip)
|
|
{
|
|
GList *tmp, *ret;
|
|
GESTimelineElement *child;
|
|
|
|
g_return_val_if_fail (GES_IS_CLIP (clip), NULL);
|
|
|
|
GST_DEBUG_OBJECT (clip, "Getting the %i top effects", clip->priv->nb_effects);
|
|
ret = NULL;
|
|
|
|
for (tmp = GES_CONTAINER_CHILDREN (clip); tmp; tmp = tmp->next) {
|
|
child = tmp->data;
|
|
if (GES_IS_BASE_EFFECT (child)
|
|
&& !ges_track_element_get_owners (GES_TRACK_ELEMENT (child)))
|
|
ret = g_list_append (ret, gst_object_ref (child));
|
|
}
|
|
|
|
/* list is already sorted by index because the list of children is
|
|
* sorted by priority */
|
|
return ret;
|
|
}
|
|
|
|
static gboolean
|
|
_is_added_effect (GESClip * clip, GESBaseEffect * effect)
|
|
{
|
|
if (GES_TIMELINE_ELEMENT_PARENT (effect) != GES_TIMELINE_ELEMENT (clip)) {
|
|
GST_WARNING_OBJECT (clip, "The effect %" GES_FORMAT
|
|
" doe not belong to this clip", GES_ARGS (effect));
|
|
return FALSE;
|
|
}
|
|
if (ges_track_element_get_owners (GES_TRACK_ELEMENT (effect))) {
|
|
GST_WARNING_OBJECT (clip, "The effect %" GES_FORMAT " is not a top "
|
|
"effect of this clip (it is a core element of the clip)",
|
|
GES_ARGS (effect));
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* ges_clip_get_top_effect_index:
|
|
* @clip: A #GESClip
|
|
* @effect: The effect we want to get the index of
|
|
*
|
|
* Gets the internal index of an effect in the clip. The index of effects
|
|
* in a clip will run from 0 to n-1, where n is the total number of
|
|
* effects. If two effects share the same #GESTrackElement:track, the
|
|
* effect with the numerically lower index will be applied to the source
|
|
* data **after** the other effect, i.e. output data will always flow from
|
|
* a higher index effect to a lower index effect.
|
|
*
|
|
* Returns: The index of @effect in @clip, or -1 if something went wrong.
|
|
*/
|
|
gint
|
|
ges_clip_get_top_effect_index (GESClip * clip, GESBaseEffect * effect)
|
|
{
|
|
guint max_prio, min_prio;
|
|
|
|
g_return_val_if_fail (GES_IS_CLIP (clip), -1);
|
|
g_return_val_if_fail (GES_IS_BASE_EFFECT (effect), -1);
|
|
if (!_is_added_effect (clip, effect))
|
|
return -1;
|
|
|
|
_get_priority_range (GES_CONTAINER (clip), &min_prio, &max_prio);
|
|
|
|
return GES_TIMELINE_ELEMENT_PRIORITY (effect) - min_prio;
|
|
}
|
|
|
|
/* TODO 2.0 remove as it is Deprecated */
|
|
gint
|
|
ges_clip_get_top_effect_position (GESClip * clip, GESBaseEffect * effect)
|
|
{
|
|
return ges_clip_get_top_effect_index (clip, effect);
|
|
}
|
|
|
|
/* TODO 2.0 remove as it is Deprecated */
|
|
gboolean
|
|
ges_clip_set_top_effect_priority (GESClip * clip,
|
|
GESBaseEffect * effect, guint newpriority)
|
|
{
|
|
return ges_clip_set_top_effect_index (clip, effect, newpriority);
|
|
}
|
|
|
|
/**
|
|
* ges_clip_set_top_effect_index:
|
|
* @clip: A #GESClip
|
|
* @effect: An effect within @clip to move
|
|
* @newindex: The index for @effect in @clip
|
|
*
|
|
* Set the index of an effect within the clip. See
|
|
* ges_clip_get_top_effect_index(). The new index must be an existing
|
|
* index of the clip. The effect is moved to the new index, and the other
|
|
* effects may be shifted in index accordingly to otherwise maintain the
|
|
* ordering.
|
|
*
|
|
* Returns: %TRUE if @effect was successfully moved to @newindex.
|
|
*/
|
|
gboolean
|
|
ges_clip_set_top_effect_index (GESClip * clip, GESBaseEffect * effect,
|
|
guint newindex)
|
|
{
|
|
gint inc;
|
|
GList *tmp;
|
|
guint current_prio, min_prio, max_prio;
|
|
GESTrackElement *track_element;
|
|
|
|
g_return_val_if_fail (GES_IS_CLIP (clip), FALSE);
|
|
g_return_val_if_fail (GES_IS_BASE_EFFECT (effect), FALSE);
|
|
|
|
if (!_is_added_effect (clip, effect))
|
|
return FALSE;
|
|
|
|
track_element = GES_TRACK_ELEMENT (effect);
|
|
current_prio = _PRIORITY (track_element);
|
|
|
|
_get_priority_range (GES_CONTAINER (clip), &min_prio, &max_prio);
|
|
|
|
newindex = newindex + min_prio;
|
|
/* We don't change the priority */
|
|
if (current_prio == newindex)
|
|
return TRUE;
|
|
|
|
if (newindex > (clip->priv->nb_effects - 1 + min_prio)) {
|
|
GST_DEBUG ("You are trying to make %p not a top effect", effect);
|
|
return FALSE;
|
|
}
|
|
|
|
if (current_prio > clip->priv->nb_effects + min_prio) {
|
|
GST_ERROR ("%p is not a top effect", effect);
|
|
return FALSE;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (clip, "Setting top effect %" GST_PTR_FORMAT "priority: %i",
|
|
effect, newindex);
|
|
|
|
if (current_prio < newindex)
|
|
inc = -1;
|
|
else
|
|
inc = +1;
|
|
|
|
/* prevent a re-sort of the list whilst we are traversing it! */
|
|
clip->priv->prevent_resort = TRUE;
|
|
for (tmp = GES_CONTAINER_CHILDREN (clip); tmp; tmp = tmp->next) {
|
|
GESTrackElement *tmpo = GES_TRACK_ELEMENT (tmp->data);
|
|
guint tck_priority = _PRIORITY (tmpo);
|
|
|
|
if (tmpo == track_element)
|
|
continue;
|
|
|
|
/* only need to change the priority for those between the new and old
|
|
* index */
|
|
if ((inc == +1 && tck_priority >= newindex && tck_priority < current_prio)
|
|
|| (inc == -1 && tck_priority <= newindex
|
|
&& tck_priority > current_prio)) {
|
|
_set_priority0 (GES_TIMELINE_ELEMENT (tmpo), tck_priority + inc);
|
|
}
|
|
}
|
|
_set_priority0 (GES_TIMELINE_ELEMENT (track_element), newindex);
|
|
|
|
clip->priv->prevent_resort = FALSE;
|
|
_ges_container_sort_children (GES_CONTAINER (clip));
|
|
/* height should have stayed the same */
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* ges_clip_split:
|
|
* @clip: The #GESClip to split
|
|
* @position: The timeline position at which to perform the split
|
|
*
|
|
* Splits a clip at the given timeline position into two clips. The clip
|
|
* must already have a #GESClip:layer.
|
|
*
|
|
* The original clip's #GESTimelineElement:duration is reduced such that
|
|
* its end point matches the split position. Then a new clip is created in
|
|
* the same layer, whose #GESTimelineElement:start matches the split
|
|
* position and #GESTimelineElement:duration will be set such that its end
|
|
* point matches the old end point of the original clip. Thus, the two
|
|
* clips together will occupy the same positions in the timeline as the
|
|
* original clip did.
|
|
*
|
|
* The children of the new clip will be new copies of the original clip's
|
|
* children, so it will share the same sources and use the same
|
|
* operations.
|
|
*
|
|
* The new clip will also have its #GESTimelineElement:in-point set so
|
|
* that any internal data will appear in the timeline at the same time.
|
|
* Thus, when the timeline is played, the playback of data should
|
|
* appear the same. This may be complicated by any additional
|
|
* #GESEffect-s that have been placed on the original clip that depend on
|
|
* the playback time or change the data consumption rate of sources. This
|
|
* method will attempt to translate these effects such that the playback
|
|
* appears the same. In such complex situations, you may get a better
|
|
* result if you place the clip in a separate sub #GESProject, which only
|
|
* contains this clip (and its effects), and in the original layer
|
|
* create two neighbouring #GESUriClip-s that reference this sub-project,
|
|
* but at a different #GESTimelineElement:in-point.
|
|
*
|
|
* Returns: (transfer none) (nullable): The newly created clip resulting
|
|
* from the splitting @clip, or %NULL if @clip can't be split.
|
|
*/
|
|
GESClip *
|
|
ges_clip_split (GESClip * clip, guint64 position)
|
|
{
|
|
GList *tmp;
|
|
GESClip *new_object;
|
|
GstClockTime start, inpoint, duration, old_duration, new_duration;
|
|
gdouble media_duration_factor;
|
|
|
|
g_return_val_if_fail (GES_IS_CLIP (clip), NULL);
|
|
g_return_val_if_fail (clip->priv->layer, NULL);
|
|
g_return_val_if_fail (GST_CLOCK_TIME_IS_VALID (position), NULL);
|
|
|
|
duration = _DURATION (clip);
|
|
start = _START (clip);
|
|
inpoint = _INPOINT (clip);
|
|
|
|
if (position >= start + duration || position <= start) {
|
|
GST_WARNING_OBJECT (clip, "Can not split %" GST_TIME_FORMAT
|
|
" out of boundaries", GST_TIME_ARGS (position));
|
|
return NULL;
|
|
}
|
|
|
|
old_duration = position - start;
|
|
if (!timeline_tree_can_move_element (timeline_get_tree
|
|
(GES_TIMELINE_ELEMENT_TIMELINE (clip)), GES_TIMELINE_ELEMENT (clip),
|
|
GES_TIMELINE_ELEMENT_LAYER_PRIORITY (clip),
|
|
start, old_duration, NULL)) {
|
|
GST_WARNING_OBJECT (clip,
|
|
"Can not split %" GES_FORMAT " at %" GST_TIME_FORMAT
|
|
" as timeline would be in an illegal" " state.", GES_ARGS (clip),
|
|
GST_TIME_ARGS (position));
|
|
return NULL;
|
|
}
|
|
|
|
new_duration = duration + start - position;
|
|
if (!timeline_tree_can_move_element (timeline_get_tree
|
|
(GES_TIMELINE_ELEMENT_TIMELINE (clip)), GES_TIMELINE_ELEMENT (clip),
|
|
GES_TIMELINE_ELEMENT_LAYER_PRIORITY (clip), position, new_duration,
|
|
NULL)) {
|
|
GST_WARNING_OBJECT (clip,
|
|
"Can not split %" GES_FORMAT " at %" GST_TIME_FORMAT
|
|
" as timeline would end up in an illegal" " state.", GES_ARGS (clip),
|
|
GST_TIME_ARGS (position));
|
|
return NULL;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (clip, "Spliting at %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (position));
|
|
|
|
/* Create the new Clip */
|
|
new_object = GES_CLIP (ges_timeline_element_copy (GES_TIMELINE_ELEMENT (clip),
|
|
FALSE));
|
|
|
|
GST_DEBUG_OBJECT (new_object, "New 'splitted' clip");
|
|
/* Set new timing properties on the Clip */
|
|
media_duration_factor =
|
|
ges_timeline_element_get_media_duration_factor (GES_TIMELINE_ELEMENT
|
|
(clip));
|
|
_set_start0 (GES_TIMELINE_ELEMENT (new_object), position);
|
|
_set_inpoint0 (GES_TIMELINE_ELEMENT (new_object),
|
|
inpoint + old_duration * media_duration_factor);
|
|
_set_duration0 (GES_TIMELINE_ELEMENT (new_object), new_duration);
|
|
|
|
_DURATION (clip) = old_duration;
|
|
g_object_notify (G_OBJECT (clip), "duration");
|
|
|
|
/* We do not want the timeline to create again TrackElement-s */
|
|
ges_clip_set_moving_from_layer (new_object, TRUE);
|
|
ges_layer_add_clip (clip->priv->layer, new_object);
|
|
ges_clip_set_moving_from_layer (new_object, FALSE);
|
|
|
|
for (tmp = GES_CONTAINER_CHILDREN (clip); tmp; tmp = tmp->next) {
|
|
GESTrackElement *new_trackelement, *trackelement =
|
|
GES_TRACK_ELEMENT (tmp->data);
|
|
|
|
new_trackelement =
|
|
GES_TRACK_ELEMENT (ges_timeline_element_copy (GES_TIMELINE_ELEMENT
|
|
(trackelement), FALSE));
|
|
if (new_trackelement == NULL) {
|
|
GST_WARNING_OBJECT (trackelement, "Could not create a copy");
|
|
continue;
|
|
}
|
|
|
|
if (ges_track_element_get_owners (trackelement))
|
|
ges_track_element_add_owner (new_trackelement, new_object);
|
|
|
|
/* FIXME: in-point for non-core track elements should be shifted by
|
|
* the split (adding them to the new clip will not set their in-point)
|
|
* Handle this once generic time effects are supported in splitting */
|
|
ges_container_add (GES_CONTAINER (new_object),
|
|
GES_TIMELINE_ELEMENT (new_trackelement));
|
|
ges_track_element_copy_properties (GES_TIMELINE_ELEMENT (trackelement),
|
|
GES_TIMELINE_ELEMENT (new_trackelement));
|
|
|
|
/* FIXME: is position - start + inpoint always the correct splitting
|
|
* point for control bindings? What coordinate system are control
|
|
* bindings given in? */
|
|
/* NOTE: control bindings that are not registered in GES are not
|
|
* handled */
|
|
ges_track_element_copy_bindings (trackelement, new_trackelement,
|
|
position - start + inpoint);
|
|
}
|
|
|
|
/* FIXME: The below leads to a *second* notify signal for duration */
|
|
ELEMENT_SET_FLAG (clip, GES_TIMELINE_ELEMENT_SET_SIMPLE);
|
|
_DURATION (clip) = duration;
|
|
_set_duration0 (GES_TIMELINE_ELEMENT (clip), old_duration);
|
|
ELEMENT_UNSET_FLAG (clip, GES_TIMELINE_ELEMENT_SET_SIMPLE);
|
|
|
|
return new_object;
|
|
}
|
|
|
|
/**
|
|
* ges_clip_set_supported_formats:
|
|
* @clip: A #GESClip
|
|
* @supportedformats: The #GESTrackType-s supported by @clip
|
|
*
|
|
* Sets the #GESClip:supported-formats of the clip. This should normally
|
|
* only be called by subclasses, which should be responsible for updating
|
|
* its value, rather than the user.
|
|
*/
|
|
void
|
|
ges_clip_set_supported_formats (GESClip * clip, GESTrackType supportedformats)
|
|
{
|
|
g_return_if_fail (GES_IS_CLIP (clip));
|
|
|
|
clip->priv->supportedformats = supportedformats;
|
|
}
|
|
|
|
/**
|
|
* ges_clip_get_supported_formats:
|
|
* @clip: A #GESClip
|
|
*
|
|
* Gets the #GESClip:supported-formats of the clip.
|
|
*
|
|
* Returns: The #GESTrackType-s supported by @clip.
|
|
*/
|
|
GESTrackType
|
|
ges_clip_get_supported_formats (GESClip * clip)
|
|
{
|
|
g_return_val_if_fail (GES_IS_CLIP (clip), GES_TRACK_TYPE_UNKNOWN);
|
|
|
|
return clip->priv->supportedformats;
|
|
}
|
|
|
|
gboolean
|
|
_ripple (GESTimelineElement * element, GstClockTime start)
|
|
{
|
|
return ges_container_edit (GES_CONTAINER (element), NULL,
|
|
ges_timeline_element_get_layer_priority (element),
|
|
GES_EDIT_MODE_RIPPLE, GES_EDGE_NONE, start);
|
|
}
|
|
|
|
static gboolean
|
|
_ripple_end (GESTimelineElement * element, GstClockTime end)
|
|
{
|
|
return ges_container_edit (GES_CONTAINER (element), NULL,
|
|
ges_timeline_element_get_layer_priority (element),
|
|
GES_EDIT_MODE_RIPPLE, GES_EDGE_END, end);
|
|
}
|
|
|
|
gboolean
|
|
_roll_start (GESTimelineElement * element, GstClockTime start)
|
|
{
|
|
return ges_container_edit (GES_CONTAINER (element), NULL,
|
|
ges_timeline_element_get_layer_priority (element),
|
|
GES_EDIT_MODE_ROLL, GES_EDGE_START, start);
|
|
}
|
|
|
|
gboolean
|
|
_roll_end (GESTimelineElement * element, GstClockTime end)
|
|
{
|
|
return ges_container_edit (GES_CONTAINER (element), NULL,
|
|
ges_timeline_element_get_layer_priority (element),
|
|
GES_EDIT_MODE_ROLL, GES_EDGE_END, end);
|
|
}
|
|
|
|
gboolean
|
|
_trim (GESTimelineElement * element, GstClockTime start)
|
|
{
|
|
return ges_container_edit (GES_CONTAINER (element), NULL, -1,
|
|
GES_EDIT_MODE_TRIM, GES_EDGE_START, start);
|
|
}
|
|
|
|
/**
|
|
* ges_clip_add_asset:
|
|
* @clip: A #GESClip
|
|
* @asset: An asset with #GES_TYPE_TRACK_ELEMENT as its
|
|
* #GESAsset:extractable-type
|
|
*
|
|
* Extracts a #GESTrackElement from an asset and adds it to the clip.
|
|
* This can be used to add effects that derive from the asset to the
|
|
* clip, but this method is not intended to be used to create the core
|
|
* elements of the clip.
|
|
*
|
|
* Returns: (transfer none)(allow-none): The newly created element, or
|
|
* %NULL if an error occurred.
|
|
*/
|
|
/* FIXME: this is not used elsewhere in the GES library */
|
|
GESTrackElement *
|
|
ges_clip_add_asset (GESClip * clip, GESAsset * asset)
|
|
{
|
|
GESTrackElement *element;
|
|
|
|
g_return_val_if_fail (GES_IS_CLIP (clip), NULL);
|
|
g_return_val_if_fail (GES_IS_ASSET (asset), NULL);
|
|
g_return_val_if_fail (g_type_is_a (ges_asset_get_extractable_type
|
|
(asset), GES_TYPE_TRACK_ELEMENT), NULL);
|
|
|
|
element = GES_TRACK_ELEMENT (ges_asset_extract (asset, NULL));
|
|
|
|
if (!ges_container_add (GES_CONTAINER (clip), GES_TIMELINE_ELEMENT (element)))
|
|
return NULL;
|
|
|
|
return element;
|
|
|
|
}
|
|
|
|
/**
|
|
* ges_clip_find_track_elements:
|
|
* @clip: A #GESClip
|
|
* @track: (allow-none): The track to search in, or %NULL to search in
|
|
* all tracks
|
|
* @track_type: The track-type of the track element to search for, or
|
|
* #GES_TRACK_TYPE_UNKNOWN to match any track type
|
|
* @type: The type of track element to search for, or %G_TYPE_NONE to
|
|
* match any type
|
|
*
|
|
* Finds the #GESTrackElement-s controlled by the clip that match the
|
|
* given criteria. If @track is given as %NULL and @track_type is given as
|
|
* #GES_TRACK_TYPE_UNKNOWN, then the search will match all elements in any
|
|
* track, including those with no track, and of any
|
|
* #GESTrackElement:track-type. Otherwise, if @track is not %NULL, but
|
|
* @track_type is #GES_TRACK_TYPE_UNKNOWN, then only the track elements in
|
|
* @track are searched for. Otherwise, if @track_type is not
|
|
* #GES_TRACK_TYPE_UNKNOWN, but @track is %NULL, then only the track
|
|
* elements whose #GESTrackElement:track-type matches @track_type are
|
|
* searched for. Otherwise, when both are given, the track elements that
|
|
* match **either** criteria are searched for. Therefore, if you wish to
|
|
* only find elements in a specific track, you should give the track as
|
|
* @track, but you should not give the track's #GESTrack:track-type as
|
|
* @track_type because this would also select elements from other tracks
|
|
* of the same type.
|
|
*
|
|
* You may also give @type to _further_ restrict the search to track
|
|
* elements of the given @type.
|
|
*
|
|
* Returns: (transfer full) (element-type GESTrackElement): A list of all
|
|
* the #GESTrackElement-s controlled by @clip, in @track or of the given
|
|
* @track_type, and of the given @type.
|
|
*/
|
|
|
|
GList *
|
|
ges_clip_find_track_elements (GESClip * clip, GESTrack * track,
|
|
GESTrackType track_type, GType type)
|
|
{
|
|
GList *tmp;
|
|
GESTrackElement *otmp;
|
|
|
|
GList *ret = NULL;
|
|
|
|
g_return_val_if_fail (GES_IS_CLIP (clip), NULL);
|
|
g_return_val_if_fail (!(track == NULL && type == G_TYPE_NONE &&
|
|
track_type == GES_TRACK_TYPE_UNKNOWN), NULL);
|
|
|
|
for (tmp = GES_CONTAINER_CHILDREN (clip); tmp; tmp = g_list_next (tmp)) {
|
|
otmp = (GESTrackElement *) tmp->data;
|
|
|
|
if ((type != G_TYPE_NONE) && !G_TYPE_CHECK_INSTANCE_TYPE (tmp->data, type))
|
|
continue;
|
|
|
|
/* TODO 2.0: an AND condition, using a condition like the above type
|
|
* check would have made more sense here. Especially when both
|
|
* track != NULL and track_type != GES_TRACK_TYPE_UNKNOWN are given */
|
|
if ((track == NULL && track_type == GES_TRACK_TYPE_UNKNOWN) ||
|
|
(track != NULL && ges_track_element_get_track (otmp) == track) ||
|
|
(track_type != GES_TRACK_TYPE_UNKNOWN
|
|
&& ges_track_element_get_track_type (otmp) == track_type))
|
|
ret = g_list_append (ret, gst_object_ref (otmp));
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* ges_clip_get_timeline_time_from_source_frame:
|
|
* @clip: A #GESClip
|
|
* @frame_number: The frame number to get the corresponding timestamp in the
|
|
* timeline coordinates
|
|
* @err: A #GError set on errors
|
|
*
|
|
* This method allows you to convert a frame number into a #GstClockTime, this
|
|
* can be used to either seek to a particular frame in the timeline or to later
|
|
* on edit @self with that timestamp.
|
|
*
|
|
* This method should be use specifically in the case where you want to trim the
|
|
* clip to a particular frame.
|
|
*
|
|
* The returned timestamp is in the global #GESTimeline time coordinates of @self, not
|
|
* in the internal time coordinates. In practice, this means that you can not use
|
|
* that time to set the clip #GESTimelineElement:in-point but it can be used in
|
|
* the timeline editing API, for example as the @position argument of the
|
|
* #ges_timeline_element_edit method.
|
|
*
|
|
* Note that you can get the frame timestamp of a particular clip asset with
|
|
* #ges_clip_asset_get_frame_time.
|
|
*
|
|
* Returns: The timestamp corresponding to @frame_number in the element source
|
|
* in the timeline coordinates.
|
|
*/
|
|
GstClockTime
|
|
ges_clip_get_timeline_time_from_source_frame (GESClip * clip,
|
|
GESFrameNumber frame_number, GError ** err)
|
|
{
|
|
GstClockTime frame_ts;
|
|
GESClipAsset *asset;
|
|
GstClockTimeDiff inpoint_diff;
|
|
|
|
g_return_val_if_fail (GES_IS_CLIP (clip), GST_CLOCK_TIME_NONE);
|
|
g_return_val_if_fail (!err || !*err, GST_CLOCK_TIME_NONE);
|
|
|
|
if (!GES_FRAME_NUMBER_IS_VALID (frame_number))
|
|
return GST_CLOCK_TIME_NONE;
|
|
|
|
asset = GES_CLIP_ASSET (ges_extractable_get_asset (GES_EXTRACTABLE (clip)));
|
|
frame_ts = ges_clip_asset_get_frame_time (asset, frame_number);
|
|
if (!GST_CLOCK_TIME_IS_VALID (frame_ts))
|
|
return GST_CLOCK_TIME_NONE;
|
|
|
|
inpoint_diff = GST_CLOCK_DIFF (frame_ts, GES_TIMELINE_ELEMENT_INPOINT (clip));
|
|
if (GST_CLOCK_DIFF (inpoint_diff, _START (clip)) < 0) {
|
|
g_set_error (err, GES_ERROR, GES_ERROR_INVALID_FRAME_NUMBER,
|
|
"Requested frame %" G_GINT64_FORMAT
|
|
" would be outside the timeline.", frame_number);
|
|
return GST_CLOCK_TIME_NONE;
|
|
}
|
|
|
|
return GST_CLOCK_DIFF (inpoint_diff, _START (clip));
|
|
}
|