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examples: New playlist examples
Allows giving lists of file/start/duration triplets and testing the various timeline-pipeline modes (preview, render, smart-render)
This commit is contained in:
Edward Hervey
parent
d784d95d10
commit
8af90b7144
2 changed files with 211 additions and 0 deletions
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@ -1,4 +1,5 @@
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noinst_PROGRAMS = \
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playlist \
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simple1 \
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test1 \
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test2 \
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210
tests/examples/playlist.c
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210
tests/examples/playlist.c
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/* 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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdlib.h>
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#include <glib.h>
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#include <ges/ges.h>
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#include <gst/profile/gstprofile.h>
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static GstEncodingProfile *
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make_encoding_profile (gchar * audio, gchar * video, gchar * container)
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{
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GstEncodingProfile *profile;
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GstStreamEncodingProfile *stream;
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profile = gst_encoding_profile_new ("ges-test4",
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gst_caps_new_simple (container, NULL), NULL, FALSE);
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stream = gst_stream_encoding_profile_new (GST_ENCODING_PROFILE_AUDIO,
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gst_caps_from_string (audio), NULL, NULL, 0);
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gst_encoding_profile_add_stream (profile, stream);
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stream = gst_stream_encoding_profile_new (GST_ENCODING_PROFILE_VIDEO,
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gst_caps_from_string (video), NULL, NULL, 0);
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gst_encoding_profile_add_stream (profile, stream);
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return profile;
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}
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static GESTimelinePipeline *
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create_timeline (int nbargs, gchar ** argv)
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{
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GESTimelinePipeline *pipeline;
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GESTimelineLayer *layer;
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GESTrack *tracka, *trackv;
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GESTimeline *timeline;
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guint i;
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timeline = ges_timeline_new ();
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tracka = ges_track_audio_raw_new ();
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trackv = ges_track_video_raw_new ();
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/* We are only going to be doing one layer of timeline objects */
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layer = (GESTimelineLayer *) ges_simple_timeline_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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!ges_timeline_add_track (timeline, tracka) ||
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!ges_timeline_add_track (timeline, trackv))
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return NULL;
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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 = 0; i < nbargs / 3; i++) {
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gchar *uri = g_strdup_printf ("file://%s", argv[i * 3]);
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GESTimelineFileSource *src = ges_timeline_filesource_new (uri);
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g_assert (src);
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g_free (uri);
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g_object_set (src,
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"in-point", atoi (argv[i * 3 + 1]) * GST_SECOND,
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"duration", atoi (argv[i * 3 + 2]) * GST_SECOND, NULL);
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/* Since we're using a GESSimpleTimelineLayer, objects will be automatically
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* appended to the end of the layer */
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ges_timeline_layer_add_object (layer, (GESTimelineObject *) src);
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}
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/* In order to view our timeline, let's grab a convenience pipeline to put
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* our timeline in. */
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pipeline = ges_timeline_pipeline_new ();
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/* Add the timeline to that pipeline */
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if (!ges_timeline_pipeline_add_timeline (pipeline, timeline))
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return NULL;
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return pipeline;
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}
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static void
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bus_message_cb (GstBus * bus, GstMessage * message, GMainLoop * mainloop)
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{
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switch (GST_MESSAGE_TYPE (message)) {
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case GST_MESSAGE_ERROR:
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g_print ("ERROR\n");
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g_main_loop_quit (mainloop);
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break;
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case GST_MESSAGE_EOS:
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g_print ("Done\n");
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g_main_loop_quit (mainloop);
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break;
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default:
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break;
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}
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}
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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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gchar *outputuri = NULL;
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gchar *container = "application/ogg";
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gchar *audio = "audio/x-vorbis";
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gchar *video = "video/x-theora";
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static gboolean render = FALSE;
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static gboolean smartrender = FALSE;
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GOptionEntry options[] = {
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{"render", 'r', 0, G_OPTION_ARG_NONE, &render,
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"Render to outputuri", NULL},
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{"smartrender", 's', 0, G_OPTION_ARG_NONE, &smartrender,
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"Render to outputuri, and avoid decoding/reencoding", NULL},
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{"outputuri", 'o', 0, G_OPTION_ARG_STRING, &outputuri,
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"URI to encode to", "URI (<protocol>://<location>)"},
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{"format", 'f', 0, G_OPTION_ARG_STRING, &container,
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"Container format", "<GstCaps>"},
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{"vformat", 'v', 0, G_OPTION_ARG_STRING, &video,
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"Video format", "<GstCaps>"},
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{"aformat", 'a', 0, G_OPTION_ARG_STRING, &audio,
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"Audio format", "<GstCaps>"},
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{NULL}
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};
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GOptionContext *ctx;
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GESTimelinePipeline *pipeline;
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GMainLoop *mainloop;
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GstBus *bus;
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if (!g_thread_supported ())
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g_thread_init (NULL);
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ctx = g_option_context_new ("- plays/render a list of files");
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g_option_context_set_summary (ctx,
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"If not specified, this example will playback the files\n" "\n"
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"The files should be layed out in triplets of:\n" " * filename\n"
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" * inpoint (in seconds)\n" " * duration (in seconds)");
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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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exit (1);
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}
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if ((argc < 4) || (outputuri && (!render && !smartrender))) {
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g_print ("outputuri:%s, render:%d, smartrender:%d, argc:%d\n",
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outputuri, render, smartrender, argc);
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g_print ("%s", g_option_context_get_help (ctx, TRUE, NULL));
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g_option_context_free (ctx);
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exit (-1);
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}
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g_option_context_free (ctx);
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/* Initialize the GStreamer Editing Services */
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ges_init ();
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/* Create the pipeline */
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pipeline = create_timeline (argc - 1, argv + 1);
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if (!pipeline)
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exit (-1);
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/* Setup profile/encoding if needed */
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if (render || smartrender) {
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GstEncodingProfile *prof;
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prof = make_encoding_profile (audio, video, container);
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if (!prof ||
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!ges_timeline_pipeline_set_render_settings (pipeline, outputuri, prof)
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|| !ges_timeline_pipeline_set_mode (pipeline,
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smartrender ? TIMELINE_MODE_SMART_RENDER : TIMELINE_MODE_RENDER))
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exit (-1);
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} else {
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ges_timeline_pipeline_set_mode (pipeline, TIMELINE_MODE_PREVIEW);
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}
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/* Play the pipeline */
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mainloop = g_main_loop_new (NULL, FALSE);
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bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
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gst_bus_add_signal_watch (bus);
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g_signal_connect (bus, "message", G_CALLBACK (bus_message_cb), mainloop);
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if (gst_element_set_state (GST_ELEMENT (pipeline),
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GST_STATE_PLAYING) == GST_STATE_CHANGE_FAILURE) {
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g_print ("Failed to start the encoding\n");
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return 1;
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}
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g_main_loop_run (mainloop);
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gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_NULL);
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return 0;
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}
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