/* GStreamer unit test for the alpha element * * Copyright (C) 2007 Ravi Kiran K N * * 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 #include 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);