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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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e1fcd42a19
+ Add some markdown files to link between languages + Add a simple 'play timeline with one clip" example in C and python
111 lines
3.5 KiB
C
111 lines
3.5 KiB
C
/* GStreamer Editing Services
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* Copyright (C) 2010 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 <stdlib.h>
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#include <ges/ges.h>
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#include <stdlib.h>
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int
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main (int argc, gchar ** argv)
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{
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GError *err = NULL;
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GOptionContext *ctx;
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GESPipeline *pipeline;
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GESTimeline *timeline;
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GESTrack *tracka, *trackv;
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GESLayer *layer1, *layer2;
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GESUriClip *src;
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GMainLoop *mainloop;
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gint inpoint = 0, duration = 10;
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gboolean mute = FALSE;
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gchar *audiofile = NULL;
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GOptionEntry options[] = {
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{"inpoint", 'i', 0, G_OPTION_ARG_INT, &inpoint,
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"in-point in the file (in seconds, default:0s)", "seconds"},
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{"duration", 'd', 0, G_OPTION_ARG_INT, &duration,
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"duration to use from the file (in seconds, default:10s)", "seconds"},
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{"mute", 'm', 0, G_OPTION_ARG_NONE, &mute,
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"Whether to mute the audio from the file",},
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{"audiofile", 'a', 0, G_OPTION_ARG_FILENAME, &audiofile,
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"Use this audiofile instead of the original audio from the file",
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"audiofile"},
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{NULL}
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};
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ctx =
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g_option_context_new
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("- Plays an video file with sound (origin/muted/replaced)");
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g_option_context_add_main_entries (ctx, options, NULL);
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g_option_context_add_group (ctx, gst_init_get_option_group ());
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if (!g_option_context_parse (ctx, &argc, &argv, &err)) {
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g_print ("Error initializing %s\n", err->message);
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g_option_context_free (ctx);
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g_clear_error (&err);
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exit (1);
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}
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if (argc == 1) {
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g_print ("%s", g_option_context_get_help (ctx, TRUE, NULL));
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exit (0);
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}
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g_option_context_free (ctx);
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ges_init ();
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/* Create an Audio/Video pipeline with two layers */
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pipeline = ges_pipeline_new ();
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timeline = ges_timeline_new ();
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tracka = GES_TRACK (ges_audio_track_new ());
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trackv = GES_TRACK (ges_video_track_new ());
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layer1 = ges_layer_new ();
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layer2 = ges_layer_new ();
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g_object_set (layer2, "priority", 1, NULL);
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if (!ges_timeline_add_layer (timeline, layer1) ||
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!ges_timeline_add_layer (timeline, layer2) ||
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!ges_timeline_add_track (timeline, tracka) ||
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!ges_timeline_add_track (timeline, trackv) ||
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!ges_pipeline_set_timeline (pipeline, timeline))
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return -1;
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if (1) {
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gchar *uri = gst_filename_to_uri (argv[1], NULL);
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/* Add the main audio/video file */
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src = ges_uri_clip_new (uri);
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g_free (uri);
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g_object_set (src, "start", 0, "in-point", inpoint * GST_SECOND,
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"duration", duration * GST_SECOND, "mute", mute, NULL);
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ges_layer_add_clip (layer1, GES_CLIP (src));
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}
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/* Play the pipeline */
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gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PLAYING);
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mainloop = g_main_loop_new (NULL, FALSE);
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g_timeout_add_seconds (duration + 1, (GSourceFunc) g_main_loop_quit,
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mainloop);
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g_main_loop_run (mainloop);
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return 0;
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}
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