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144 lines
3.4 KiB
C
144 lines
3.4 KiB
C
/* GStreamer interactive videoscale test
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* Copyright (C) 2008 Wim Taymans <wim.taymans@gmail.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 <gst/gst.h>
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#define CAPS " capsfilter caps=\"video/x-raw, format=(string)I420, width=(int)640, height=(int)480\" "
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static GstElement *
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make_pipeline (gint type)
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{
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GstElement *result;
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gchar *pstr;
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switch (type) {
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case 0:
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pstr =
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g_strdup_printf ("videotestsrc ! " CAPS
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" ! videobox name=box ! videoscale ! " CAPS
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" ! videoconvert ! ximagesink");
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break;
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default:
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return NULL;
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}
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result = gst_parse_launch_full (pstr, NULL, GST_PARSE_FLAG_NONE, NULL);
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g_print ("created test %d: \"%s\"\n", type, pstr);
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g_free (pstr);
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return result;
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}
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#define MAX_ROUND 100
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int
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main (int argc, char **argv)
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{
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GstElement *pipe, *filter;
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gint left, right;
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gint top, bottom;
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gint rdir, ldir;
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gint tdir, bdir;
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gint round, type, stop;
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gst_init (&argc, &argv);
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type = 0;
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stop = -1;
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if (argc > 1) {
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type = atoi (argv[1]);
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stop = type + 1;
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}
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while (TRUE) {
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GstMessage *message;
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pipe = make_pipeline (type);
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if (pipe == NULL)
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break;
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filter = gst_bin_get_by_name (GST_BIN (pipe), "box");
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g_assert (filter);
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/* start with no borders or cropping */
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left = right = top = bottom = 0;
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rdir = ldir = tdir = bdir = -10;
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for (round = 0; round < MAX_ROUND; round++) {
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g_print ("box to %dx%d %dx%d (%d/%d) \r", left, right, top, bottom,
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round, MAX_ROUND);
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g_object_set (filter, "left", left, "right", right, "top", top, "bottom",
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bottom, NULL);
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if (round == 0)
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gst_element_set_state (pipe, GST_STATE_PLAYING);
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left += ldir;
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if (left >= 40)
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ldir = -10;
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else if (left < -30)
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ldir = 10;
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right += rdir;
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if (right >= 30)
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rdir = -10;
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else if (right < -20)
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rdir = 10;
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top += tdir;
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if (top >= 20)
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tdir = -10;
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else if (top < -30)
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tdir = 10;
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bottom += bdir;
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if (bottom >= 60)
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bdir = -10;
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else if (bottom < -40)
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bdir = 10;
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message =
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gst_bus_poll (GST_ELEMENT_BUS (pipe), GST_MESSAGE_ERROR,
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50 * GST_MSECOND);
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if (message) {
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g_print ("got error \n");
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gst_message_unref (message);
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}
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}
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g_print ("test %d done \n", type);
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gst_object_unref (filter);
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gst_element_set_state (pipe, GST_STATE_NULL);
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gst_object_unref (pipe);
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type++;
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if (type == stop)
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break;
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}
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return 0;
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}
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