gstreamer/ges/ges-timeline-background-source.c
2010-07-09 13:21:14 +02:00

281 lines
8.5 KiB
C

/* GStreamer Editing Services
* Copyright (C) 2009 Edward Hervey <edward.hervey@collabora.co.uk>
* 2009 Nokia Corporation
*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/**
* SECTION:ges-timeline-background-source
* @short_description: An object for manipulating media files in a GESTimeline
*
* Represents all the output treams from a particular uri. It is assumed that
* the URI points to a file of some type.
*/
#include "ges-internal.h"
#include "ges-timeline-background-source.h"
#include "ges-timeline-source.h"
#include "ges-track-object.h"
#include "ges-track-video-background-source.h"
#include "ges-track-audio-background-source.h"
#include <string.h>
G_DEFINE_TYPE (GESTimelineBackgroundSource, ges_tl_bg_src,
GES_TYPE_TIMELINE_SOURCE);
#define GES_TIMELINE_BACKGROUND_SOURCE_VPATTERN_TYPE\
ges_timeline_background_source_vpattern_get_type()
/* table more-or-less copied from gstvideotestsrc.c */
static GEnumValue vpattern_enum_values[] = {
{GES_TRACK_VIDEO_BG_SRC_SMPTE, "SMPTE 100% color bars", "smpte"},
{GES_TRACK_VIDEO_BG_SRC_SNOW, "Random (television snow)", "snow"},
{GES_TRACK_VIDEO_BG_SRC_BLACK, "100% Black", "black"},
{GES_TRACK_VIDEO_BG_SRC_WHITE, "100% White", "white"},
{GES_TRACK_VIDEO_BG_SRC_RED, "Red", "red"},
{GES_TRACK_VIDEO_BG_SRC_GREEN, "Green", "green"},
{GES_TRACK_VIDEO_BG_SRC_BLUE, "Blue", "blue"},
{GES_TRACK_VIDEO_BG_SRC_CHECKERS1, "Checkers 1px", "checkers-1"},
{GES_TRACK_VIDEO_BG_SRC_CHECKERS2, "Checkers 2px", "checkers-2"},
{GES_TRACK_VIDEO_BG_SRC_CHECKERS4, "Checkers 4px", "checkers-4"},
{GES_TRACK_VIDEO_BG_SRC_CHECKERS8, "Checkers 8px", "checkers-8"},
{GES_TRACK_VIDEO_BG_SRC_CIRCULAR, "Circular", "circular"},
{GES_TRACK_VIDEO_BG_SRC_BLINK, "Blink", "blink"},
{GES_TRACK_VIDEO_BG_SRC_SMPTE75, "SMPTE 75% color bars", "smpte75"},
{0, NULL, NULL}
};
GType ges_timeline_background_source_vpattern_get_type (void);
GType
ges_timeline_background_source_vpattern_get_type (void)
{
static gsize once = 0;
static GType theType = 0;
if (g_once_init_enter (&once)) {
theType = g_enum_register_static ("GESTimelineBackgroundSourceVPattern",
vpattern_enum_values);
g_once_init_leave (&once, 1);
};
return theType;
}
enum
{
PROP_0,
PROP_MUTE,
PROP_VPATTERN,
};
static void
ges_tl_bg_src_set_mute (GESTimelineBackgroundSource * self, gboolean mute);
static void
ges_tl_bg_src_set_vpattern (GESTimelineBackgroundSource * self, gint vpattern);
static GESTrackObject
* ges_tl_bg_src_create_track_object (GESTimelineObject * obj,
GESTrack * track);
static void
ges_tl_bg_src_get_property (GObject * object, guint property_id,
GValue * value, GParamSpec * pspec)
{
GESTimelineBackgroundSource *tfs = GES_TIMELINE_BACKGROUND_SOURCE (object);
switch (property_id) {
case PROP_MUTE:
g_value_set_boolean (value, tfs->mute);
break;
case PROP_VPATTERN:
g_value_set_enum (value, tfs->vpattern);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
}
static void
ges_tl_bg_src_set_property (GObject * object, guint property_id,
const GValue * value, GParamSpec * pspec)
{
GESTimelineBackgroundSource *tfs = GES_TIMELINE_BACKGROUND_SOURCE (object);
switch (property_id) {
case PROP_MUTE:
ges_tl_bg_src_set_mute (tfs, g_value_get_boolean (value));
break;
case PROP_VPATTERN:
ges_tl_bg_src_set_vpattern (tfs, g_value_get_enum (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
}
static void
ges_tl_bg_src_dispose (GObject * object)
{
G_OBJECT_CLASS (ges_tl_bg_src_parent_class)->dispose (object);
}
static void
ges_tl_bg_src_finalize (GObject * object)
{
G_OBJECT_CLASS (ges_tl_bg_src_parent_class)->finalize (object);
}
static void
ges_tl_bg_src_class_init (GESTimelineBackgroundSourceClass * klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GESTimelineObjectClass *timobj_class = GES_TIMELINE_OBJECT_CLASS (klass);
object_class->get_property = ges_tl_bg_src_get_property;
object_class->set_property = ges_tl_bg_src_set_property;
object_class->dispose = ges_tl_bg_src_dispose;
object_class->finalize = ges_tl_bg_src_finalize;
/**
* GESTimelineBackgroundSource:vpattern:
*
* Video pattern to display in video track objects.
*/
g_object_class_install_property (object_class, PROP_VPATTERN,
g_param_spec_enum ("vpattern", "VPattern",
"Which video pattern to display. See videotestsrc element",
GES_TIMELINE_BACKGROUND_SOURCE_VPATTERN_TYPE,
GES_TRACK_VIDEO_BG_SRC_BLACK, G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
/**
* GESTimelineBackgroundSource:mute:
*
* Whether the sound will be played or not.
*/
g_object_class_install_property (object_class, PROP_MUTE,
g_param_spec_boolean ("mute", "Mute", "Mute audio track",
FALSE, G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
timobj_class->create_track_object = ges_tl_bg_src_create_track_object;
timobj_class->need_fill_track = FALSE;
}
static void
ges_tl_bg_src_init (GESTimelineBackgroundSource * self)
{
GES_TIMELINE_OBJECT (self)->duration = 0;
}
static void
ges_tl_bg_src_set_mute (GESTimelineBackgroundSource * self, gboolean mute)
{
GList *tmp;
GESTimelineObject *object = (GESTimelineObject *) self;
GST_DEBUG ("self:%p, mute:%d", self, mute);
self->mute = mute;
/* Go over tracked objects, and update 'active' status on all audio objects */
for (tmp = object->trackobjects; tmp; tmp = tmp->next) {
GESTrackObject *trackobject = (GESTrackObject *) tmp->data;
if (trackobject->track->type == GES_TRACK_TYPE_AUDIO)
ges_track_object_set_active (trackobject, !mute);
}
}
static void
ges_tl_bg_src_set_vpattern (GESTimelineBackgroundSource * self, gint vpattern)
{
GList *tmp;
GESTimelineObject *object = (GESTimelineObject *) self;
self->vpattern = vpattern;
for (tmp = object->trackobjects; tmp; tmp = tmp->next) {
GESTrackObject *trackobject = (GESTrackObject *) tmp->data;
if (GES_IS_TRACK_VIDEO_BACKGROUND_SOURCE (trackobject))
ges_track_video_background_source_set_pattern (
(GESTrackVideoBackgroundSource *) trackobject, vpattern);
}
}
static GESTrackObject *
ges_tl_bg_src_create_track_object (GESTimelineObject * obj, GESTrack * track)
{
GESTimelineBackgroundSource *tfs = (GESTimelineBackgroundSource *) obj;
GESTrackObject *res = NULL;
GST_DEBUG ("Creating a GESTrackBackgroundSource");
if (track->type == GES_TRACK_TYPE_VIDEO) {
res = (GESTrackObject *) ges_track_video_background_source_new ();
ges_track_video_background_source_set_pattern (
(GESTrackVideoBackgroundSource *) res, tfs->vpattern);
}
else if (track->type == GES_TRACK_TYPE_AUDIO) {
res = (GESTrackObject *) ges_track_audio_background_source_new ();
if (tfs->mute)
ges_track_object_set_active (res, FALSE);
}
else
res = NULL;
return res;
}
/**
* ges_timeline_backgroundsource_new:
* @uri: the URI the source should control
*
* Creates a new #GESTimelineBackgroundSource for the provided @uri.
*
* Returns: The newly created #GESTimelineBackgroundSource, or NULL if there was an
* error.
*/
GESTimelineBackgroundSource *
ges_timeline_background_source_new (void)
{
/* FIXME : Check for validity/existence of URI */
return g_object_new (GES_TYPE_TIMELINE_BACKGROUND_SOURCE, NULL);
}
GESTimelineBackgroundSource *
ges_timeline_background_source_new_for_nick (gchar * nick)
{
GESTimelineBackgroundSource *ret;
GEnumValue *value;
int i;
for (i = 0, value = &vpattern_enum_values[i]; value->value_nick;
value = &vpattern_enum_values[i++]) {
if (!strcmp (nick, value->value_nick)) {
ret = g_object_new (GES_TYPE_TIMELINE_BACKGROUND_SOURCE, "vpattern",
(gint) value->value, NULL);
return ret;
}
value++;
}
return NULL;
}