/**
* ges_simple_timeline_layer_add_object:
* @layer: a #GESSimpleTimelineLayer
* @object: the #GESTimelineObject to add
* @position: the position at which to add the object
*
* Adds the object at the given position in the layer. The position is where
* the object will be inserted. To put the object before all objects, use
* position 0. To put after all objects, use position -1.
*
* When adding transitions, it is important that the adjacent objects
* (objects at position, and position + 1) be (1) A derivative of
* GESTimelineSource or other non-transition, and (2) have a duration at least
* as long as the duration of the transition.
*
* The layer will steal a reference to the provided object.
*
* Returns: TRUE if the object was successfuly added, else FALSE.
*/
gboolean
ges_simple_timeline_layer_add_object (GESSimpleTimelineLayer * layer,
GESTimelineObject * object, gint position)
{
gboolean res;
GList *nth;
GESSimpleTimelineLayerPrivate *priv = layer->priv;
GST_DEBUG ("layer:%p, object:%p, position:%d", layer, object, position);
nth = g_list_nth (priv->objects, position);
if (GES_IS_TIMELINE_TRANSITION (object)) {
GList *lprev = g_list_previous (nth);
GESTimelineObject *prev = GES_TIMELINE_OBJECT (lprev ? lprev->data : NULL);
GESTimelineObject *next = GES_TIMELINE_OBJECT (nth ? nth->data : NULL);
if ((prev && GES_IS_TIMELINE_TRANSITION (prev)) ||
(next && GES_IS_TIMELINE_TRANSITION (next))) {
GST_ERROR ("Not adding transition: Only insert transitions between two"
" sources, or at the begining or end the layer\n");
return FALSE;
}
}
priv->adding_object = TRUE;
/* provisionally insert the object */
priv->objects = g_list_insert (priv->objects, object, position);
res = ges_timeline_layer_add_object ((GESTimelineLayer *) layer, object);
/* Add to layer */
if (G_UNLIKELY (!res)) {
priv->adding_object = FALSE;
/* we failed to add the object, so remove it from our list */
priv->objects = g_list_remove (priv->objects, object);
return FALSE;
}
priv->adding_object = FALSE;
GST_DEBUG ("Adding object %p to the list", object);
g_signal_connect (G_OBJECT (object), "notify::height", G_CALLBACK
(timeline_object_height_changed_cb), layer);
/* recalculate positions */
gstl_recalculate (layer);
return TRUE;
}
GESTimelinePipeline *
make_timeline (char *path, float duration, char *text, guint32 color,
gdouble xpos, gdouble ypos)
{
GESTimeline *timeline;
GESTrack *trackv, *tracka;
GESTimelineLayer *layer1;
GESTimelineObject *srca;
GESTimelineObject *overlay;
GESTimelinePipeline *pipeline;
guint64 aduration;
pipeline = ges_timeline_pipeline_new ();
ges_timeline_pipeline_set_mode (pipeline, TIMELINE_MODE_PREVIEW_VIDEO);
timeline = ges_timeline_new ();
ges_timeline_pipeline_add_timeline (pipeline, timeline);
trackv = ges_track_video_raw_new ();
ges_timeline_add_track (timeline, trackv);
tracka = ges_track_audio_raw_new ();
ges_timeline_add_track (timeline, tracka);
layer1 = GES_TIMELINE_LAYER (ges_timeline_layer_new ());
g_object_set (layer1, "priority", (gint32) 0, NULL);
if (!ges_timeline_add_layer (timeline, layer1))
exit (-1);
aduration = (guint64) (duration * GST_SECOND);
srca = make_source (path, 0, aduration, 1);
overlay = make_overlay (text, 0, aduration, 0, color, xpos, ypos);
ges_timeline_layer_add_object (layer1, srca);
ges_timeline_layer_add_object (layer1, overlay);
return pipeline;
}
bool QDeclarativeVideoEditor::append(const QString &value)
{
qDebug() << "Appending new item:" << value;
beginInsertRows(QModelIndex(), rowCount(), rowCount());
VideoEditorItem *item = new VideoEditorItem();
item->setTlfs(ges_timeline_filesource_new(value.toUtf8().data()));
item->setUri(value);
QFileInfo file(value.toUtf8().data());
item->setFileName(file.fileName());
item->setDurHdlrID(g_signal_connect(item->getTlfs(), "notify::max-duration",
G_CALLBACK(timeline_filesource_maxduration_cb), item));
connect(item, SIGNAL(durationChanged(VideoEditorItem*)),
SLOT(objectUpdated(VideoEditorItem*)));
m_items.append(item);
bool r = ges_timeline_layer_add_object(m_timelineLayer, (GESTimelineObject*) item->getTlfs());
if (r) m_size++;
endInsertRows();
return r;
}
int
main (int argc, gchar ** argv)
{
GESTimelinePipeline *pipeline;
GESTimeline *timeline;
GESTrack *tracka;
GESTimelineLayer *layer;
GMainLoop *mainloop;
guint i;
if (argc < 2) {
g_print ("Usage: %s <list of audio files>\n", argv[0]);
return -1;
}
/* Initialize GStreamer (this will parse environment variables and commandline
* arguments. */
gst_init (&argc, &argv);
/* Initialize the GStreamer Editing Services */
ges_init ();
/* Setup of an audio timeline */
/* This is our main GESTimeline */
timeline = ges_timeline_new ();
tracka = ges_track_audio_raw_new ();
/* We are only going to be doing one layer of timeline objects */
layer = (GESTimelineLayer *) ges_simple_timeline_layer_new ();
/* Add the tracks and the layer to the timeline */
if (!ges_timeline_add_layer (timeline, layer))
return -1;
if (!ges_timeline_add_track (timeline, tracka))
return -1;
/* Here we've finished initializing our timeline, we're
* ready to start using it... by solely working with the layer ! */
for (i = 1; i < argc; i++) {
gchar *uri = gst_filename_to_uri (argv[i], NULL);
GESTimelineFileSource *src = ges_timeline_filesource_new (uri);
g_assert (src);
g_free (uri);
g_object_set (src, "duration", GST_SECOND, NULL);
/* Since we're using a GESSimpleTimelineLayer, objects will be automatically
* appended to the end of the layer */
ges_timeline_layer_add_object (layer, (GESTimelineObject *) src);
}
/* In order to view our timeline, let's grab a convenience pipeline to put
* our timeline in. */
pipeline = ges_timeline_pipeline_new ();
/* Add the timeline to that pipeline */
if (!ges_timeline_pipeline_add_timeline (pipeline, timeline))
return -1;
/* The following is standard usage of a GStreamer pipeline (note how you haven't
* had to care about GStreamer so far ?).
*
* We set the pipeline to playing ... */
gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PLAYING);
/* .. and we start a GMainLoop. GES **REQUIRES** a GMainLoop to be running in
* order to function properly ! */
mainloop = g_main_loop_new (NULL, FALSE);
/* Simple code to have the mainloop shutdown after 4s */
g_timeout_add_seconds (argc - 1, (GSourceFunc) g_main_loop_quit, mainloop);
g_main_loop_run (mainloop);
return 0;
}
static GESTimeline *
create_timeline (int nbargs, gchar ** argv, gchar * audio, gchar * video)
{
GESTimelineLayer *layer;
GESTrack *tracka = NULL, *trackv = NULL;
GESTimeline *timeline;
guint i;
timeline = ges_timeline_new ();
if (audio)
tracka = ges_track_audio_raw_new ();
if (video)
trackv = ges_track_video_raw_new ();
/* We are only going to be doing one layer of timeline objects */
layer = (GESTimelineLayer *) ges_simple_timeline_layer_new ();
/* Add the tracks and the layer to the timeline */
if (!ges_timeline_add_layer (timeline, layer) ||
!(!audio || ges_timeline_add_track (timeline, tracka)) ||
!(!video || ges_timeline_add_track (timeline, trackv)))
goto build_failure;
/* Here we've finished initializing our timeline, we're
* ready to start using it... by solely working with the layer !*/
for (i = 0; i < nbargs / 3; i++) {
GESTimelineObject *obj;
char *source = argv[i * 3];
char *arg0 = argv[(i * 3) + 1];
guint64 duration = str_to_time (argv[(i * 3) + 2]);
if (!g_strcmp0 ("+pattern", source)) {
obj = GES_TIMELINE_OBJECT (ges_timeline_test_source_new_for_nick (arg0));
if (!obj) {
g_error ("%s is an invalid pattern name!\n", arg0);
goto build_failure;
}
g_object_set (G_OBJECT (obj), "duration", duration, NULL);
g_printf ("Adding <pattern:%s> duration %" GST_TIME_FORMAT "\n", arg0,
GST_TIME_ARGS (duration));
}
else if (!g_strcmp0 ("+transition", source)) {
if (duration <= 0) {
g_error ("durations must be greater than 0");
goto build_failure;
}
obj =
GES_TIMELINE_OBJECT (ges_timeline_standard_transition_new_for_nick
(arg0));
if (!obj) {
g_error ("invalid transition type\n");
goto build_failure;
}
g_object_set (G_OBJECT (obj), "duration", duration, NULL);
g_printf ("Adding <transition:%s> duration %" GST_TIME_FORMAT "\n", arg0,
GST_TIME_ARGS (duration));
}
else if (!g_strcmp0 ("+title", source)) {
obj = GES_TIMELINE_OBJECT (ges_timeline_title_source_new ());
g_object_set (obj, "duration", duration, "text", arg0, NULL);
g_printf ("Adding <title:%s> duration %" GST_TIME_FORMAT "\n", arg0,
GST_TIME_ARGS (duration));
}
else {
gchar *uri;
guint64 inpoint;
if (!(uri = ensure_uri (source))) {
GST_ERROR ("couldn't create uri for '%s'", source);
goto build_failure;
}
inpoint = str_to_time (argv[i * 3 + 1]);
obj = GES_TIMELINE_OBJECT (ges_timeline_filesource_new (uri));
g_object_set (obj,
"in-point", (guint64) inpoint, "duration", (guint64) duration, NULL);
g_printf ("Adding clip %s inpoint:%" GST_TIME_FORMAT " duration:%"
GST_TIME_FORMAT "\n", uri, GST_TIME_ARGS (inpoint),
GST_TIME_ARGS (duration));
g_free (uri);
}
/* Since we're using a GESSimpleTimelineLayer, objects will be automatically
* appended to the end of the layer */
ges_timeline_layer_add_object (layer, obj);
}
return timeline;
build_failure:
{
g_object_unref (timeline);
return NULL;
}
}
