mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-20 08:41:07 +00:00
124 lines
3 KiB
C
124 lines
3 KiB
C
/* GStreamer Editing Services
|
|
* Copyright (C) 2010 Edward Hervey <edward.hervey@collabora.co.uk>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Library General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this library; if not, write to the
|
|
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
/**
|
|
* SECTION:ges-utils
|
|
* @short_description: Convenience methods
|
|
*
|
|
*/
|
|
|
|
#include <string.h>
|
|
|
|
#include "ges-internal.h"
|
|
#include "ges-timeline.h"
|
|
#include "ges-track.h"
|
|
#include "ges-layer.h"
|
|
#include "ges.h"
|
|
|
|
/**
|
|
* ges_timeline_new_audio_video:
|
|
*
|
|
* Creates a new #GESTimeline containing a raw audio and a
|
|
* raw video track.
|
|
*
|
|
* Returns: The newly created #GESTimeline.
|
|
*/
|
|
|
|
GESTimeline *
|
|
ges_timeline_new_audio_video (void)
|
|
{
|
|
GESTrack *tracka, *trackv;
|
|
GESTimeline *timeline;
|
|
|
|
/* This is our main GESTimeline */
|
|
timeline = ges_timeline_new ();
|
|
|
|
tracka = GES_TRACK (ges_audio_track_new ());
|
|
trackv = GES_TRACK (ges_video_track_new ());
|
|
|
|
if (!ges_timeline_add_track (timeline, trackv) ||
|
|
!ges_timeline_add_track (timeline, tracka)) {
|
|
gst_object_unref (timeline);
|
|
timeline = NULL;
|
|
}
|
|
|
|
return timeline;
|
|
}
|
|
|
|
/* Internal utilities */
|
|
gint
|
|
element_start_compare (GESTimelineElement * a, GESTimelineElement * b)
|
|
{
|
|
if (a->start == b->start) {
|
|
if (a->priority < b->priority)
|
|
return -1;
|
|
if (a->priority > b->priority)
|
|
return 1;
|
|
if (a->duration < b->duration)
|
|
return -1;
|
|
if (a->duration > b->duration)
|
|
return 1;
|
|
return 0;
|
|
} else if (a->start < b->start)
|
|
return -1;
|
|
|
|
return 1;
|
|
}
|
|
|
|
gint
|
|
element_end_compare (GESTimelineElement * a, GESTimelineElement * b)
|
|
{
|
|
if (GES_TIMELINE_ELEMENT_END (a) == GES_TIMELINE_ELEMENT_END (b)) {
|
|
if (a->priority < b->priority)
|
|
return -1;
|
|
if (a->priority > b->priority)
|
|
return 1;
|
|
if (a->duration < b->duration)
|
|
return -1;
|
|
if (a->duration > b->duration)
|
|
return 1;
|
|
return 0;
|
|
} else if (GES_TIMELINE_ELEMENT_END (a) < (GES_TIMELINE_ELEMENT_END (b)))
|
|
return -1;
|
|
|
|
return 1;
|
|
}
|
|
|
|
gboolean
|
|
ges_pspec_equal (gconstpointer key_spec_1, gconstpointer key_spec_2)
|
|
{
|
|
const GParamSpec *key1 = key_spec_1;
|
|
const GParamSpec *key2 = key_spec_2;
|
|
|
|
return (key1->owner_type == key2->owner_type &&
|
|
strcmp (key1->name, key2->name) == 0);
|
|
}
|
|
|
|
guint
|
|
ges_pspec_hash (gconstpointer key_spec)
|
|
{
|
|
const GParamSpec *key = key_spec;
|
|
const gchar *p;
|
|
guint h = key->owner_type;
|
|
|
|
for (p = key->name; *p; p++)
|
|
h = (h << 5) - h + *p;
|
|
|
|
return h;
|
|
}
|