/* GStreamer Editing Services * Copyright (C) 2010 Brandon Lewis * * 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 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, * Boston, MA 02110-1301, USA. */ #include #include #include typedef struct { int type; char *name; } transition_type; GESClip *make_source (gchar * path, guint64 start, guint64 inpoint, guint64 duration, gint priority); gboolean print_transition_data (GESClip * tr); GESPipeline *make_timeline (gchar * nick, double tdur, gchar * patha, gfloat adur, gdouble ainpoint, gchar * pathb, gfloat bdur, gdouble binpoint); GESClip * make_source (gchar * path, guint64 start, guint64 duration, guint64 inpoint, gint priority) { gchar *uri = gst_filename_to_uri (path, NULL); GESClip *ret = GES_CLIP (ges_uri_clip_new (uri)); g_object_set (ret, "start", (guint64) start, "duration", (guint64) duration, "priority", (guint32) priority, "in-point", (guint64) inpoint, NULL); g_free (uri); return ret; } gboolean print_transition_data (GESClip * tr) { GESTrackElement *trackelement; GstElement *nleobj; guint64 start, duration; gint priority; char *name; GList *trackelements; if (!tr) return FALSE; if (!(trackelements = GES_CONTAINER_CHILDREN (tr))) return FALSE; if (!(trackelement = GES_TRACK_ELEMENT (trackelements->data))) return FALSE; if (!(nleobj = ges_track_element_get_nleobject (trackelement))) return FALSE; g_object_get (nleobj, "start", &start, "duration", &duration, "priority", &priority, "name", &name, NULL); gst_print ("nleobject for %s: %f %f %d\n", name, ((gfloat) start) / GST_SECOND, ((gfloat) duration) / GST_SECOND, priority); return FALSE; } GESPipeline * make_timeline (gchar * nick, gdouble tdur, gchar * patha, gfloat adur, gdouble ainp, gchar * pathb, gfloat bdur, gdouble binp) { GESTimeline *timeline; GESTrack *trackv, *tracka; GESLayer *layer1; GESClip *srca, *srcb; GESPipeline *pipeline; guint64 aduration, bduration, tduration, tstart, ainpoint, binpoint; GESTransitionClip *tr = NULL; pipeline = ges_pipeline_new (); ges_pipeline_set_mode (pipeline, GES_PIPELINE_MODE_PREVIEW_VIDEO); timeline = ges_timeline_new (); ges_pipeline_set_timeline (pipeline, timeline); trackv = GES_TRACK (ges_video_track_new ()); ges_timeline_add_track (timeline, trackv); tracka = GES_TRACK (ges_audio_track_new ()); ges_timeline_add_track (timeline, tracka); layer1 = GES_LAYER (ges_layer_new ()); g_object_set (layer1, "priority", (gint32) 0, NULL); if (!ges_timeline_add_layer (timeline, layer1)) exit (-1); aduration = (guint64) (adur * GST_SECOND); bduration = (guint64) (bdur * GST_SECOND); tduration = (guint64) (tdur * GST_SECOND); ainpoint = (guint64) (ainp * GST_SECOND); binpoint = (guint64) (binp * GST_SECOND); tstart = aduration - tduration; srca = make_source (patha, 0, aduration, ainpoint, 1); srcb = make_source (pathb, tstart, bduration, binpoint, 2); ges_layer_add_clip (layer1, srca); ges_layer_add_clip (layer1, srcb); g_timeout_add_seconds (1, (GSourceFunc) print_transition_data, srca); g_timeout_add_seconds (1, (GSourceFunc) print_transition_data, srcb); if (tduration != 0) { gst_print ("creating transition at %" GST_TIME_FORMAT " of %f duration (%" GST_TIME_FORMAT ")\n", GST_TIME_ARGS (tstart), tdur, GST_TIME_ARGS (tduration)); if (!(tr = ges_transition_clip_new_for_nick (nick))) g_error ("invalid transition type %s\n", nick); g_object_set (tr, "start", (guint64) tstart, "duration", (guint64) tduration, "in-point", (guint64) 0, NULL); ges_layer_add_clip (layer1, GES_CLIP (tr)); g_timeout_add_seconds (1, (GSourceFunc) print_transition_data, tr); } return pipeline; } int main (int argc, char **argv) { GError *err = NULL; GOptionContext *ctx; GESPipeline *pipeline; GMainLoop *mainloop; gchar *type = (gchar *) "crossfade"; gchar *patha, *pathb; gdouble adur, bdur, tdur, ainpoint, binpoint; GOptionEntry options[] = { {"type", 't', 0, G_OPTION_ARG_STRING, &type, "type of transition to create", ""}, {"duration", 'd', 0, G_OPTION_ARG_DOUBLE, &tdur, "duration of transition", "seconds"}, {NULL} }; ctx = g_option_context_new ("- transition between two media files"); g_option_context_set_summary (ctx, "Select two files, and optionally a transition duration and type.\n" "A file is a triplet of filename, inpoint (in seconds) and duration (in seconds).\n" "Example:\n" "transition file1.avi 0 5 file2.avi 25 5 -d 2 -t crossfade"); 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)) { gst_print ("Error initializing %s\n", err->message); g_option_context_free (ctx); g_clear_error (&err); exit (1); } if (argc < 4) { gst_print ("%s", g_option_context_get_help (ctx, TRUE, NULL)); exit (0); } g_option_context_free (ctx); ges_init (); patha = argv[1]; ainpoint = (gdouble) atof (argv[2]); adur = (gdouble) atof (argv[3]); pathb = argv[4]; binpoint = (gdouble) atof (argv[5]); bdur = (gdouble) atof (argv[6]); pipeline = make_timeline (type, tdur, patha, adur, ainpoint, pathb, bdur, binpoint); mainloop = g_main_loop_new (NULL, FALSE); g_timeout_add_seconds ((adur + bdur) + 1, (GSourceFunc) g_main_loop_quit, mainloop); gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PLAYING); g_main_loop_run (mainloop); return 0; }