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;
}
/* A simple timeline with 3 audio/video sources */
int
main (int argc, gchar ** argv)
{
GESAsset *src_asset;
GESTimelinePipeline *pipeline;
GESTimeline *timeline;
GESClip *source;
GESTimelineLayer *layer;
GMainLoop *mainloop;
/* Initialize GStreamer (this will parse environment variables and commandline
* arguments. */
gst_init (&argc, &argv);
/* Initialize the GStreamer Editing Services */
ges_init ();
/* Setup of a A/V timeline */
/* This is our main GESTimeline */
timeline = ges_timeline_new_audio_video ();
/* We are only going to be doing one layer of clips */
layer = ges_timeline_layer_new ();
/* Add the tracks and the layer to the timeline */
if (!ges_timeline_add_layer (timeline, layer))
return -1;
/* We create a simple asset able to extract GESTestClip */
src_asset = ges_asset_request (GES_TYPE_TEST_CLIP, NULL, NULL);
/* Add sources to our layer */
ges_timeline_layer_add_asset (layer, src_asset, 0, 0, GST_SECOND, 1,
GES_TRACK_TYPE_UNKNOWN);
source = ges_timeline_layer_add_asset (layer, src_asset, GST_SECOND, 0,
GST_SECOND, 1, GES_TRACK_TYPE_UNKNOWN);
g_object_set (source, "freq", 480.0, "vpattern", 2, NULL);
ges_timeline_layer_add_asset (layer, src_asset, 2 * GST_SECOND, 0,
GST_SECOND, 1, GES_TRACK_TYPE_UNKNOWN);
/* 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 (4, (GSourceFunc) g_main_loop_quit, mainloop);
g_main_loop_run (mainloop);
return 0;
}
