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100 lines
3 KiB
C
100 lines
3 KiB
C
/* GStreamer Editing Services
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* Copyright (C) 2009 Edward Hervey <bilboed@bilboed.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include <ges/ges.h>
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int
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main (int argc, gchar ** argv)
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{
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GESPipeline *pipeline;
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GESTimeline *timeline;
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GESTrack *tracka;
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GESLayer *layer;
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GMainLoop *mainloop;
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GstClockTime offset = 0;
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guint i;
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if (argc < 2) {
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gst_print ("Usage: %s <list of audio files>\n", argv[0]);
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return -1;
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}
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/* Initialize GStreamer (this will parse environment variables and commandline
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* arguments. */
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gst_init (&argc, &argv);
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/* Initialize the GStreamer Editing Services */
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ges_init ();
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/* Setup of an audio timeline */
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/* This is our main GESTimeline */
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timeline = ges_timeline_new ();
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tracka = GES_TRACK (ges_audio_track_new ());
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/* We are only going to be doing one layer of clips */
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layer = ges_layer_new ();
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/* Add the tracks and the layer to the timeline */
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if (!ges_timeline_add_layer (timeline, layer))
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return -1;
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if (!ges_timeline_add_track (timeline, tracka))
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return -1;
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/* Here we've finished initializing our timeline, we're
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* ready to start using it... by solely working with the layer ! */
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for (i = 1; i < argc; i++, offset += GST_SECOND) {
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gchar *uri = gst_filename_to_uri (argv[i], NULL);
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GESUriClip *src = ges_uri_clip_new (uri);
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g_assert (src);
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g_free (uri);
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g_object_set (src, "start", offset, "duration", GST_SECOND, NULL);
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ges_layer_add_clip (layer, (GESClip *) src);
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}
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/* In order to listen our timeline, let's grab a convenience pipeline to put
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* our timeline in. */
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pipeline = ges_pipeline_new ();
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/* Add the timeline to that pipeline */
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if (!ges_pipeline_set_timeline (pipeline, timeline))
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return -1;
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/* The following is standard usage of a GStreamer pipeline (note how you
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* haven't had to care about GStreamer so far ?).
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*
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* We set the pipeline to playing ... */
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gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PLAYING);
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/* ... and we start a GMainLoop. GES **REQUIRES** a GMainLoop to be running in
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* order to function properly ! */
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mainloop = g_main_loop_new (NULL, FALSE);
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/* Simple code to have the mainloop shutdown after 4s */
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g_timeout_add_seconds (argc - 1, (GSourceFunc) g_main_loop_quit, mainloop);
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g_main_loop_run (mainloop);
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return 0;
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}
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