Rename gst-matrix-example to gst-perspective-example

[experiments/gstreamer.git] / c / gst-matrix-example / gst-matrix-example.c

diff --git a/c/gst-matrix-example/gst-matrix-example.c b/c/gst-matrix-example/gst-matrix-example.c
deleted file mode 100644 (file)
index 2996c47..0000000
--- a/c/gst-matrix-example/gst-matrix-example.c
+++ /dev/null
@@ -1,138 +0,0 @@
-/* gstmatrix-example - test program for the GStreamer matrix element
- *
- * Copyright (C) 2013  Antonio Ospite <ospite@studenti.unina.it>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-/* FIXME: suppress warnings for deprecated API such as GValueArray
- * with newer GLib versions (>= 2.31.0)
- * 
- * It is just not possible to switch to GArray yet because the python API in
- * 1.2.0 still passes iterable properties as GValueArray */
-#define GLIB_DISABLE_DEPRECATION_WARNINGS
-#include <gst/gst.h>
-
-static gboolean on_message(GstBus *bus, GstMessage *message, gpointer user_data)
-{
-       GMainLoop *loop = (GMainLoop *)user_data;
-
-       switch (GST_MESSAGE_TYPE(message)) {
-       case GST_MESSAGE_ERROR:
-               g_error("Got ERROR");
-               g_main_loop_quit(loop);
-               break;
-       case GST_MESSAGE_WARNING:
-               g_warning("Got WARNING");
-               g_main_loop_quit(loop);
-               break;
-       case GST_MESSAGE_EOS:
-               g_main_loop_quit(loop);
-               break;
-       default:
-               break;
-       }
-
-       return TRUE;
-}
-
-static void set_matrix(GstElement *element)
-{
-       GValueArray *va;
-       GValue v = { 0, };
-       gdouble m[9];
-       guint i;
-
-       /* Initialize a 2D perspective matrix, you can use
-        * cvGetPerspectiveTransform() from OpenCV to build it
-        * from a quad-to-quad transformation */
-       m[0] = 1.9999999999999982;
-       m[1] = 0.8333333333333287;
-       m[2] = -399.99999999999926;
-       m[3] = 3.9968028886505525e-15;
-       m[4] = 1.9999999999999978;
-       m[5] = -8.277822871605139e-13;
-       m[6] = 2.428612866367518e-18;
-       m[7] = 0.0020833333333333294;
-       m[8] = 0.9999999999999996;
-
-       va = g_value_array_new(1);
-
-       g_value_init(&v, G_TYPE_DOUBLE);
-       for (i = 0; i < 9; i++) {
-               g_value_set_double(&v, m[i]);
-               g_value_array_append(va, &v);
-               g_value_reset(&v);
-       }
-       g_object_set(G_OBJECT(element), "m", va, NULL);
-       g_value_array_free(va);
-}
-
-int main(void)
-{
-       GstElement *pipeline, *src, *capsfilter, *matrix, *conv, *sink;
-       GstCaps *caps;
-       GstBus *bus;
-       GMainLoop *loop;
-       int ret;
-
-       gst_init(NULL, NULL);
-
-       pipeline = gst_element_factory_make("pipeline", NULL);
-
-       src = gst_element_factory_make("videotestsrc", NULL);
-
-       caps = gst_caps_from_string("video/x-raw,format=AYUV,width=800,height=480");
-
-       capsfilter = gst_element_factory_make("capsfilter", NULL);
-       g_object_set(G_OBJECT(capsfilter), "caps", caps, NULL);
-
-       matrix = gst_element_factory_make("matrix", NULL);
-       set_matrix(matrix);
-
-       conv = gst_element_factory_make("videoconvert", NULL);
-
-       sink = gst_element_factory_make("autovideosink", NULL);
-       g_return_val_if_fail(sink != NULL, -1);
-
-       gst_bin_add_many(GST_BIN(pipeline), src, capsfilter, matrix, conv, sink, NULL);
-       ret = gst_element_link_many(src, capsfilter, matrix, conv, sink, NULL);
-       if (!ret) {
-               g_error("Failed to link elements");
-               return -2;
-       }
-
-       loop = g_main_loop_new(NULL, FALSE);
-
-       bus = gst_pipeline_get_bus(GST_PIPELINE(pipeline));
-       gst_bus_add_signal_watch(bus);
-       g_signal_connect(G_OBJECT(bus), "message", G_CALLBACK(on_message),
-                        loop);
-       gst_object_unref(GST_OBJECT(bus));
-
-       ret = gst_element_set_state(pipeline, GST_STATE_PLAYING);
-       if (ret == GST_STATE_CHANGE_FAILURE) {
-               g_error("Failed to go into PLAYING state");
-               return -3;
-       }
-
-       g_main_loop_run(loop);
-
-       gst_element_set_state(pipeline, GST_STATE_NULL);
-
-       g_main_loop_unref(loop);
-       gst_object_unref(pipeline);
-
-       return 0;
-}