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157 lines
3.9 KiB
C
157 lines
3.9 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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, 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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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 = g_strdup_printf ("videotestsrc ! capsfilter name=filter ! "
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"ximagesink");
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break;
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case 1:
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pstr = g_strdup_printf ("videotestsrc ! queue ! capsfilter name=filter ! "
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"ximagesink");
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break;
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case 2:
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pstr = g_strdup_printf ("videotestsrc ! videoscale ! "
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"capsfilter name=filter ! " "ximagesink");
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break;
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case 3:
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pstr =
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g_strdup_printf ("videotestsrc ! queue ! videoscale ! "
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"capsfilter name=filter ! " "ximagesink");
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break;
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case 4:
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pstr =
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g_strdup_printf ("videotestsrc ! videoscale ! queue ! "
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"capsfilter name=filter ! " "ximagesink");
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break;
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case 5:
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pstr = g_strdup_printf ("v4l2src ! videoconvert ! videoscale ! "
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"capsfilter name=filter ! " "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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GstCaps *caps;
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gint width, height;
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gint xdir, ydir;
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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), "filter");
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g_assert (filter);
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width = 320;
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height = 240;
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xdir = ydir = -10;
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for (round = 0; round < MAX_ROUND; round++) {
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gchar *capsstr;
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g_print ("resize to %dx%d (%d/%d) \r", width, height, round, MAX_ROUND);
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/* we prefer our fixed width and height but allow other dimensions to pass
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* as well */
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capsstr =
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g_strdup_printf ("video/x-raw, width=(int)%d, height=(int)%d;"
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"video/x-raw", width, height);
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caps = gst_caps_from_string (capsstr);
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g_free (capsstr);
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g_object_set (filter, "caps", caps, NULL);
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gst_caps_unref (caps);
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if (round == 0)
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gst_element_set_state (pipe, GST_STATE_PLAYING);
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width += xdir;
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if (width >= 320)
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xdir = -10;
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else if (width < 200)
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xdir = 10;
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height += ydir;
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if (height >= 240)
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ydir = -10;
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else if (height < 150)
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ydir = 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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