--- /dev/null
+/* GStreamer unit test for the alpha element
+ *
+ * Copyright (C) 2007 Ravi Kiran K N <ravi.kiran@samsung.com>
+ *
+ * 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., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include <gst/check/gstcheck.h>
+#include <gst/video/video.h>
+
+
+GstPad *srcpad, *sinkpad;
+
+static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
+ GST_PAD_SINK,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("AYUV"))
+ );
+static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
+ GST_PAD_SRC,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("{ AYUV, "
+ "ARGB, BGRA, ABGR, RGBA, Y444, xRGB, BGRx, xBGR, "
+ "RGBx, RGB, BGR, Y42B, YUY2, YVYU, UYVY, I420, YV12, Y41B } "))
+ );
+
+
+typedef enum
+{
+ FILL_GREEN,
+ FILL_BLUE
+}
+FillColor;
+
+static GstElement *
+setup_alpha (void)
+{
+ GstElement *alpha;
+
+ alpha = gst_check_setup_element ("alpha");
+ srcpad = gst_check_setup_src_pad (alpha, &srctemplate);
+ sinkpad = gst_check_setup_sink_pad (alpha, &sinktemplate);
+
+ gst_pad_set_active (srcpad, TRUE);
+ gst_pad_set_active (sinkpad, TRUE);
+
+ return alpha;
+}
+
+static void
+cleanup_alpha (GstElement * alpha)
+{
+ gst_pad_set_active (srcpad, FALSE);
+ gst_pad_set_active (sinkpad, FALSE);
+ gst_check_teardown_src_pad (alpha);
+ gst_check_teardown_sink_pad (alpha);
+ gst_check_teardown_element (alpha);
+}
+
+#define WIDTH 3
+#define HEIGHT 4
+
+static GstCaps *
+create_caps_rgba32 (void)
+{
+ GstCaps *caps;
+
+ caps = gst_caps_new_simple ("video/x-raw",
+ "width", G_TYPE_INT, WIDTH,
+ "height", G_TYPE_INT, HEIGHT,
+ "framerate", GST_TYPE_FRACTION, 0, 1,
+ "format", G_TYPE_STRING, "RGBA", NULL);
+
+ return caps;
+}
+
+static GstBuffer *
+create_buffer_rgba32 (FillColor color)
+{
+ guint8 rgba32_img[HEIGHT * WIDTH * 4];
+ guint32 *rgba32 = (guint32 *) rgba32_img;
+
+ GstBuffer *buf;
+ GstMapInfo map;
+ guint32 rgba_col;
+ int i;
+
+ if (color == FILL_GREEN)
+ rgba_col = 0xff00ff00; /* GREEN */
+ else
+ rgba_col = 0xffff0000; /* BLUE */
+
+ for (i = 0; i < HEIGHT * WIDTH; i++)
+ rgba32[i] = rgba_col;
+
+ buf = gst_buffer_new_and_alloc (HEIGHT * WIDTH * 4);
+ gst_buffer_map (buf, &map, GST_MAP_READWRITE);
+ fail_unless_equals_int (map.size, sizeof (rgba32_img));
+ memcpy (map.data, rgba32_img, sizeof (rgba32_img));
+
+ gst_buffer_unmap (buf, &map);
+
+ return buf;
+}
+
+
+GST_START_TEST (test_chromakeying)
+{
+ GstElement *alpha;
+ GstBuffer *inbuffer;
+ GstBuffer *outbuffer;
+ GstCaps *incaps;
+ guint8 *ayuv;
+ guint outlength;
+ GstMapInfo map;
+ int i;
+
+ incaps = create_caps_rgba32 ();
+
+ alpha = setup_alpha ();
+
+ g_object_set (alpha, "method", 1, NULL); /* Chroma-keying GREEN */
+
+ fail_unless_equals_int (gst_element_set_state (alpha, GST_STATE_PLAYING),
+ GST_STATE_CHANGE_SUCCESS);
+
+ gst_check_setup_events (srcpad, alpha, incaps, GST_FORMAT_TIME);
+
+ inbuffer = create_buffer_rgba32 (FILL_GREEN);
+ GST_DEBUG ("Created buffer of %" G_GSIZE_FORMAT " bytes",
+ gst_buffer_get_size (inbuffer));
+ ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);
+
+ fail_unless_equals_int (gst_pad_push (srcpad, inbuffer), GST_FLOW_OK);
+
+ fail_unless (g_list_length (buffers) == 1);
+ outbuffer = (GstBuffer *) buffers->data;
+ fail_if (outbuffer == NULL);
+ fail_unless (GST_IS_BUFFER (outbuffer));
+
+ ASSERT_BUFFER_REFCOUNT (outbuffer, "outbuffer", 1);
+ outlength = WIDTH * HEIGHT * 4; /* output is AYUV */
+ gst_buffer_map (outbuffer, &map, GST_MAP_READ);
+ fail_unless_equals_int (map.size, outlength);
+
+ ayuv = map.data;
+
+ /* check chroma keying GREEN */
+ for (i = 0; i < HEIGHT * WIDTH; i += 4)
+ fail_unless_equals_int (ayuv[i], 0x00);
+
+ gst_buffer_unmap (outbuffer, &map);
+
+ buffers = g_list_remove (buffers, outbuffer);
+ gst_buffer_unref (outbuffer);
+
+ fail_unless_equals_int (gst_element_set_state (alpha, GST_STATE_NULL),
+ GST_STATE_CHANGE_SUCCESS);
+
+ /* cleanup */
+ cleanup_alpha (alpha);
+ ASSERT_CAPS_REFCOUNT (incaps, "incaps", 1);
+ gst_caps_unref (incaps);
+
+}
+
+GST_END_TEST;
+
+
+
+GST_START_TEST (test_alpha)
+{
+ GstElement *alpha;
+ GstBuffer *inbuffer;
+ GstBuffer *outbuffer;
+ GstCaps *incaps;
+ guint8 *ayuv;
+ guint outlength;
+ GstMapInfo map;
+ int i;
+
+ incaps = create_caps_rgba32 ();
+
+ alpha = setup_alpha ();
+
+ g_object_set (alpha, "alpha", 0.5, NULL); /* Alpha value 0.5 */
+
+ fail_unless_equals_int (gst_element_set_state (alpha, GST_STATE_PLAYING),
+ GST_STATE_CHANGE_SUCCESS);
+
+ gst_check_setup_events (srcpad, alpha, incaps, GST_FORMAT_TIME);
+
+ inbuffer = create_buffer_rgba32 (FILL_BLUE);
+ GST_DEBUG ("Created buffer of %" G_GSIZE_FORMAT " bytes",
+ gst_buffer_get_size (inbuffer));
+ ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);
+
+ /* pushing gives away reference */
+ GST_DEBUG ("push it");
+ fail_unless_equals_int (gst_pad_push (srcpad, inbuffer), GST_FLOW_OK);
+ GST_DEBUG ("pushed it");
+
+ /* ... and puts a new buffer on the global list */
+ fail_unless (g_list_length (buffers) == 1);
+ outbuffer = (GstBuffer *) buffers->data;
+ fail_if (outbuffer == NULL);
+ fail_unless (GST_IS_BUFFER (outbuffer));
+
+ ASSERT_BUFFER_REFCOUNT (outbuffer, "outbuffer", 1);
+ outlength = WIDTH * HEIGHT * 4; /* output is AYUV */
+ gst_buffer_map (outbuffer, &map, GST_MAP_READ);
+ fail_unless_equals_int (map.size, outlength);
+
+ ayuv = map.data;
+
+ for (i = 0; i < HEIGHT * WIDTH; i += 4)
+ fail_unless_equals_int (ayuv[i], 0x7F);
+
+ gst_buffer_unmap (outbuffer, &map);
+
+ buffers = g_list_remove (buffers, outbuffer);
+ gst_buffer_unref (outbuffer);
+
+ fail_unless_equals_int (gst_element_set_state (alpha, GST_STATE_NULL),
+ GST_STATE_CHANGE_SUCCESS);
+
+ /* cleanup */
+ GST_DEBUG ("cleanup alpha");
+ cleanup_alpha (alpha);
+ GST_DEBUG ("cleanup, unref incaps");
+ ASSERT_CAPS_REFCOUNT (incaps, "incaps", 1);
+ gst_caps_unref (incaps);
+
+}
+
+GST_END_TEST;
+
+
+static Suite *
+alpha_suite (void)
+{
+ Suite *s = suite_create ("alpha");
+ TCase *tc_chain = tcase_create ("general");
+
+ suite_add_tcase (s, tc_chain);
+ tcase_add_test (tc_chain, test_alpha);
+ tcase_add_test (tc_chain, test_chromakeying);
+
+ return s;
+}
+
+GST_CHECK_MAIN (alpha);
projects / platform / upstream / gst-plugins-good.git / commitdiff