gstreamer/ges/ges-timeline-test-source.c

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/* 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-test-source
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* @short_description: Render video and audio test patterns in a
* #GESTimelineLayer
*
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* Useful for testing purposes or for filling gaps between media in
* a #GESTimelineLayer.
*/
#include "ges-internal.h"
#include "ges-timeline-test-source.h"
#include "ges-timeline-source.h"
#include "ges-track-object.h"
#include "ges-track-video-test-source.h"
#include "ges-track-audio-test-source.h"
#include <string.h>
G_DEFINE_TYPE (GESTimelineTestSource, ges_timeline_test_source,
GES_TYPE_TIMELINE_SOURCE);
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struct _GESTimelineTestSourcePrivate
{
/* Dummy variable */
void *nothing;
};
enum
{
PROP_0,
PROP_MUTE,
PROP_VPATTERN,
PROP_FREQ,
PROP_VOLUME,
};
static void
ges_timeline_test_source_set_mute (GESTimelineTestSource * self, gboolean mute);
static void
ges_timeline_test_source_set_vpattern (GESTimelineTestSource * self,
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GESVideoTestPattern vpattern);
static void
ges_timeline_test_source_set_freq (GESTimelineTestSource * self, gdouble freq);
static void
ges_timeline_test_source_set_volume (GESTimelineTestSource * self,
gdouble volume);
static GESTrackObject
* ges_timeline_test_source_create_track_object (GESTimelineObject * obj,
GESTrack * track);
static void
ges_timeline_test_source_get_property (GObject * object, guint property_id,
GValue * value, GParamSpec * pspec)
{
GESTimelineTestSource *tfs = GES_TIMELINE_TEST_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;
case PROP_FREQ:
g_value_set_double (value, tfs->freq);
break;
case PROP_VOLUME:
g_value_set_double (value, tfs->volume);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
}
static void
ges_timeline_test_source_set_property (GObject * object, guint property_id,
const GValue * value, GParamSpec * pspec)
{
GESTimelineTestSource *tfs = GES_TIMELINE_TEST_SOURCE (object);
switch (property_id) {
case PROP_MUTE:
ges_timeline_test_source_set_mute (tfs, g_value_get_boolean (value));
break;
case PROP_VPATTERN:
ges_timeline_test_source_set_vpattern (tfs, g_value_get_enum (value));
break;
case PROP_FREQ:
ges_timeline_test_source_set_freq (tfs, g_value_get_double (value));
break;
case PROP_VOLUME:
ges_timeline_test_source_set_volume (tfs, g_value_get_double (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
}
static void
ges_timeline_test_source_class_init (GESTimelineTestSourceClass * klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GESTimelineObjectClass *timobj_class = GES_TIMELINE_OBJECT_CLASS (klass);
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g_type_class_add_private (klass, sizeof (GESTimelineTestSourcePrivate));
object_class->get_property = ges_timeline_test_source_get_property;
object_class->set_property = ges_timeline_test_source_set_property;
/**
* GESTimelineTestSource: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_VIDEO_TEST_PATTERN_TYPE,
GES_VIDEO_TEST_PATTERN_BLACK, G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
/**
* GESTimelineTestSource:freq
*
* The frequency to generate for audio track objects.
*/
g_object_class_install_property (object_class, PROP_FREQ,
g_param_spec_double ("freq", "Audio Frequency",
"The frequency to generate. See audiotestsrc element",
0, 20000, 440, G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
/**
* GESTimelineTestSource:volume
*
* The volume for the audio track objects.
*/
g_object_class_install_property (object_class, PROP_VOLUME,
g_param_spec_double ("volume", "Audio Volume",
"The volume of the test audio signal.",
0, 1, 0, G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
/**
* GESTimelineTestSource: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_timeline_test_source_create_track_object;
timobj_class->need_fill_track = FALSE;
}
static void
ges_timeline_test_source_init (GESTimelineTestSource * self)
{
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self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
GES_TYPE_TIMELINE_TEST_SOURCE, GESTimelineTestSourcePrivate);
self->freq = 0;
self->volume = 0;
GES_TIMELINE_OBJECT (self)->duration = 0;
}
static void
ges_timeline_test_source_set_mute (GESTimelineTestSource * self, gboolean mute)
{
GList *tmp, *trackobjects;
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 */
trackobjects = ges_timeline_object_get_track_objects (object);
for (tmp = 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);
g_object_unref (GES_TRACK_OBJECT (tmp->data));
}
g_list_free (trackobjects);
}
static void
ges_timeline_test_source_set_vpattern (GESTimelineTestSource * self,
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GESVideoTestPattern vpattern)
{
GList *tmp, *trackobjects;
GESTimelineObject *object = (GESTimelineObject *) self;
self->vpattern = vpattern;
trackobjects = ges_timeline_object_get_track_objects (object);
for (tmp = trackobjects; tmp; tmp = tmp->next) {
GESTrackObject *trackobject = (GESTrackObject *) tmp->data;
if (GES_IS_TRACK_VIDEO_TEST_SOURCE (trackobject))
ges_track_video_test_source_set_pattern (
(GESTrackVideoTestSource *) trackobject, vpattern);
g_object_unref (GES_TRACK_OBJECT (tmp->data));
}
g_list_free (trackobjects);
}
static void
ges_timeline_test_source_set_freq (GESTimelineTestSource * self, gdouble freq)
{
GList *tmp, *trackobjects;
GESTimelineObject *object = (GESTimelineObject *) self;
self->freq = freq;
trackobjects = ges_timeline_object_get_track_objects (object);
for (tmp = trackobjects; tmp; tmp = tmp->next) {
GESTrackObject *trackobject = (GESTrackObject *) tmp->data;
if (GES_IS_TRACK_AUDIO_TEST_SOURCE (trackobject))
ges_track_audio_test_source_set_freq (
(GESTrackAudioTestSource *) trackobject, freq);
g_object_unref (GES_TRACK_OBJECT (tmp->data));
}
g_list_free (trackobjects);
}
static void
ges_timeline_test_source_set_volume (GESTimelineTestSource * self,
gdouble volume)
{
GList *tmp, *trackobjects;
GESTimelineObject *object = (GESTimelineObject *) self;
self->volume = volume;
trackobjects = ges_timeline_object_get_track_objects (object);
for (tmp = trackobjects; tmp; tmp = tmp->next) {
GESTrackObject *trackobject = (GESTrackObject *) tmp->data;
if (GES_IS_TRACK_AUDIO_TEST_SOURCE (trackobject))
ges_track_audio_test_source_set_volume (
(GESTrackAudioTestSource *) trackobject, volume);
g_object_unref (GES_TRACK_OBJECT (tmp->data));
}
g_list_free (trackobjects);
}
static GESTrackObject *
ges_timeline_test_source_create_track_object (GESTimelineObject * obj,
GESTrack * track)
{
GESTimelineTestSource *tfs = (GESTimelineTestSource *) obj;
GESTrackObject *res = NULL;
GST_DEBUG ("Creating a GESTrackTestSource");
if (track->type == GES_TRACK_TYPE_VIDEO) {
res = (GESTrackObject *) ges_track_video_test_source_new ();
ges_track_video_test_source_set_pattern (
(GESTrackVideoTestSource *) res, tfs->vpattern);
}
else if (track->type == GES_TRACK_TYPE_AUDIO) {
res = (GESTrackObject *) ges_track_audio_test_source_new ();
if (tfs->mute)
ges_track_object_set_active (res, FALSE);
ges_track_audio_test_source_set_freq ((GESTrackAudioTestSource *) res,
tfs->freq);
ges_track_audio_test_source_set_volume ((GESTrackAudioTestSource *) res,
tfs->volume);
}
return res;
}
/**
* ges_timeline_testsource_new:
* @uri: the URI the source should control
*
* Creates a new #GESTimelineTestSource for the provided @uri.
*
* Returns: The newly created #GESTimelineTestSource, or NULL if there was an
* error.
*/
GESTimelineTestSource *
ges_timeline_test_source_new (void)
{
/* FIXME : Check for validity/existence of URI */
return g_object_new (GES_TYPE_TIMELINE_TEST_SOURCE, NULL);
}
GESTimelineTestSource *
ges_timeline_test_source_new_for_nick (gchar * nick)
{
GEnumValue *value;
GEnumClass *klass;
GESTimelineTestSource *ret = NULL;
klass = G_ENUM_CLASS (g_type_class_ref (GES_VIDEO_TEST_PATTERN_TYPE));
if (!klass)
return NULL;
value = g_enum_get_value_by_nick (klass, nick);
if (value) {
ret = g_object_new (GES_TYPE_TIMELINE_TEST_SOURCE, "vpattern",
(gint) value->value, NULL);
}
g_type_class_unref (klass);
return ret;
}