gstreamer/examples/c/simple1.c

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/* GStreamer Editing Services
* Copyright (C) 2010 Edward Hervey <bilboed@bilboed.com>
*
* 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
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
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#include <stdlib.h>
#include <ges/ges.h>
#include <stdlib.h>
int
main (int argc, gchar ** argv)
{
GError *err = NULL;
GOptionContext *ctx;
GESPipeline *pipeline;
GESTimeline *timeline;
GESTrack *tracka, *trackv;
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GESLayer *layer1, *layer2;
GESUriClip *src;
GMainLoop *mainloop;
gint inpoint = 0, duration = 10;
gboolean mute = FALSE;
gchar *audiofile = NULL;
GOptionEntry options[] = {
{"inpoint", 'i', 0, G_OPTION_ARG_INT, &inpoint,
"in-point in the file (in seconds, default:0s)", "seconds"},
{"duration", 'd', 0, G_OPTION_ARG_INT, &duration,
"duration to use from the file (in seconds, default:10s)", "seconds"},
{"mute", 'm', 0, G_OPTION_ARG_NONE, &mute,
"Whether to mute the audio from the file",},
{"audiofile", 'a', 0, G_OPTION_ARG_FILENAME, &audiofile,
"Use this audiofile instead of the original audio from the file",
"audiofile"},
{NULL}
};
ctx =
g_option_context_new
("- Plays an video file with sound (origin/muted/replaced)");
g_option_context_add_main_entries (ctx, options, NULL);
g_option_context_add_group (ctx, gst_init_get_option_group ());
if (!g_option_context_parse (ctx, &argc, &argv, &err)) {
g_print ("Error initializing %s\n", err->message);
g_option_context_free (ctx);
g_clear_error (&err);
exit (1);
}
if (argc == 1) {
g_print ("%s", g_option_context_get_help (ctx, TRUE, NULL));
exit (0);
}
g_option_context_free (ctx);
ges_init ();
/* Create an Audio/Video pipeline with two layers */
pipeline = ges_pipeline_new ();
timeline = ges_timeline_new ();
tracka = GES_TRACK (ges_audio_track_new ());
trackv = GES_TRACK (ges_video_track_new ());
layer1 = ges_layer_new ();
layer2 = ges_layer_new ();
g_object_set (layer2, "priority", 1, NULL);
if (!ges_timeline_add_layer (timeline, layer1) ||
!ges_timeline_add_layer (timeline, layer2) ||
!ges_timeline_add_track (timeline, tracka) ||
!ges_timeline_add_track (timeline, trackv) ||
!ges_pipeline_set_timeline (pipeline, timeline))
return -1;
if (1) {
gchar *uri = gst_filename_to_uri (argv[1], NULL);
/* Add the main audio/video file */
src = ges_uri_clip_new (uri);
g_free (uri);
g_object_set (src, "start", 0, "in-point", inpoint * GST_SECOND,
"duration", duration * GST_SECOND, "mute", mute, NULL);
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ges_layer_add_clip (layer1, GES_CLIP (src));
}
/* Play the pipeline */
gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PLAYING);
mainloop = g_main_loop_new (NULL, FALSE);
g_timeout_add_seconds (duration + 1, (GSourceFunc) g_main_loop_quit,
mainloop);
g_main_loop_run (mainloop);
return 0;
}