X-Git-Url: https://git.ao2.it/experiments/gstreamer.git/blobdiff_plain/ae0b8a944a0e5aeb654cac1d938be255733e26c9..6dafa0dbe81010f758224579b1357d6e59aa0bd7:/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
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;
-}