/* 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);