diff -r 000000000000 -r 0e761a78d257 gst_plugins_base/tests/icles/test-textoverlay.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gst_plugins_base/tests/icles/test-textoverlay.c Thu Dec 17 08:53:32 2009 +0200 @@ -0,0 +1,107 @@ +/* GStreamer interactive textoverlay test + * Copyright (C) 2007 Tim-Philipp Müller + * + * 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., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include + +static void +set_enum_property_by_name (gpointer object, const gchar * prop, + const gchar * value) +{ + GParamSpec *pspec; + GValue val = { 0, }; + GEnumClass *eclass; + GEnumValue *eval; + + pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (object), prop); + g_return_if_fail (pspec != NULL); + + g_value_init (&val, pspec->value_type); + g_object_get_property (G_OBJECT (object), prop, &val); + eclass = G_ENUM_CLASS (g_type_class_peek (G_VALUE_TYPE (&val))); + g_return_if_fail (eclass != NULL); + eval = g_enum_get_value_by_name (eclass, value); + if (eval == NULL) + eval = g_enum_get_value_by_nick (eclass, value); + g_return_if_fail (eval != NULL); + g_value_set_enum (&val, eval->value); + g_object_set_property (G_OBJECT (object), prop, &val); + g_value_unset (&val); +} + +static void +show_text (GstElement * textoverlay, const gchar * txt, const gchar * valign, + const gchar * halign, const gchar * line_align) +{ + GstElement *pipe; + + g_object_set (textoverlay, "text", txt, NULL); + + set_enum_property_by_name (textoverlay, "valignment", valign); + set_enum_property_by_name (textoverlay, "halignment", halign); + set_enum_property_by_name (textoverlay, "line-alignment", line_align); + + pipe = textoverlay; + while (GST_ELEMENT_PARENT (pipe)) + pipe = GST_ELEMENT_PARENT (pipe); + + gst_element_set_state (pipe, GST_STATE_PLAYING); + gst_bus_poll (GST_ELEMENT_BUS (pipe), GST_MESSAGE_ERROR, 2 * GST_SECOND); + gst_element_set_state (pipe, GST_STATE_NULL); +} + +int +main (int argc, char **argv) +{ + GstElement *pipe, *toverlay; + const gchar *valigns[] = { /* "baseline", */ "bottom", "top" }; + const gchar *haligns[] = { "left", "center", "right" }; + const gchar *linealigns[] = { "left", "center", "right" }; + gint a, b, c; + + gst_init (&argc, &argv); + + pipe = gst_parse_launch ("videotestsrc pattern=black ! textoverlay name=t ! " + " ffmpegcolorspace ! videoscale ! autovideosink", NULL); + g_assert (pipe); + + toverlay = gst_bin_get_by_name (GST_BIN (pipe), "t"); + g_assert (toverlay); + + g_object_set (toverlay, "xpad", 3, "ypad", 3, NULL); + + for (a = 0; a < G_N_ELEMENTS (valigns); ++a) { + for (b = 0; b < G_N_ELEMENTS (haligns); ++b) { + for (c = 0; c < G_N_ELEMENTS (linealigns); ++c) { + gchar *s; + + s = g_strdup_printf ("line-alignment = %s\n" + "<----- halignment = %s ----->\nvalignment = %s", + linealigns[c], haligns[b], valigns[a]); + show_text (toverlay, s, valigns[a], haligns[b], linealigns[c]); + g_free (s); + } + } + } + + return 0; +}