gstreamer/tests/check/elements/gdkpixbufsink.c

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/* GStreamer unit test for the gdkpixbufsink element
* Copyright (C) 2008 Tim-Philipp Müller <tim centricular net>
*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <gst/check/gstcheck.h>
#include <gst/video/video.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#define WxH ",width=(int)319,height=(int)241"
#define N_BUFFERS 5
typedef struct
{
GstElement *pipe;
GstElement *src;
GstElement *filter;
GstElement *sink;
} GstGdkPixbufSinkTestContext;
static void
gdkpixbufsink_init_test_context (GstGdkPixbufSinkTestContext * ctx,
const gchar * filter_caps_string, gint num_buffers)
{
GstCaps *caps;
fail_unless (ctx != NULL);
ctx->pipe = gst_pipeline_new ("pipeline");
fail_unless (ctx->pipe != NULL);
ctx->src = gst_element_factory_make ("videotestsrc", "src");
fail_unless (ctx->src != NULL, "Failed to create videotestsrc element");
ctx->filter = gst_element_factory_make ("capsfilter", "filter");
fail_unless (ctx->filter != NULL, "Failed to create capsfilter element");
ctx->sink = gst_element_factory_make ("gdkpixbufsink", "sink");
fail_unless (ctx->sink != NULL, "Failed to create gdkpixbufsink element");
caps = gst_caps_from_string (filter_caps_string);
fail_unless (caps != NULL);
g_object_set (ctx->filter, "caps", caps, NULL);
gst_caps_unref (caps);
if (num_buffers > 0)
g_object_set (ctx->src, "num-buffers", num_buffers, NULL);
fail_unless (gst_bin_add (GST_BIN (ctx->pipe), ctx->src));
fail_unless (gst_bin_add (GST_BIN (ctx->pipe), ctx->filter));
fail_unless (gst_bin_add (GST_BIN (ctx->pipe), ctx->sink));
fail_unless (gst_element_link (ctx->src, ctx->filter));
fail_unless (gst_element_link (ctx->filter, ctx->sink));
}
static void
gdkpixbufsink_unset_test_context (GstGdkPixbufSinkTestContext * ctx)
{
gst_element_set_state (ctx->pipe, GST_STATE_NULL);
gst_object_unref (ctx->pipe);
memset (ctx, 0, sizeof (GstGdkPixbufSinkTestContext));
}
static gboolean
check_last_pixbuf (GstGdkPixbufSinkTestContext * ctx, gpointer pixbuf)
{
gpointer last_pb = NULL;
gboolean ret;
g_object_get (ctx->sink, "last-pixbuf", &last_pb, NULL);
ret = (last_pb == pixbuf);
if (last_pb)
g_object_unref (last_pb);
return ret;
}
/* doesn't return a ref to the pixbuf */
static GdkPixbuf *
check_message_pixbuf (GstMessage * msg, const gchar * name, gint channels,
gboolean has_alpha)
{
GdkPixbuf *pixbuf;
GstStructure *s;
fail_unless (msg->structure != NULL);
s = msg->structure;
fail_unless_equals_string (gst_structure_get_name (s), name);
fail_unless (gst_structure_has_field (s, "pixbuf"));
fail_unless (gst_structure_has_field_typed (s, "pixel-aspect-ratio",
GST_TYPE_FRACTION));
pixbuf =
GDK_PIXBUF (g_value_get_object (gst_structure_get_value (s, "pixbuf")));
fail_unless (GDK_IS_PIXBUF (pixbuf));
fail_unless_equals_int (gdk_pixbuf_get_n_channels (pixbuf), channels);
fail_unless_equals_int (gdk_pixbuf_get_has_alpha (pixbuf), has_alpha);
fail_unless_equals_int (gdk_pixbuf_get_width (pixbuf), 319);
fail_unless_equals_int (gdk_pixbuf_get_height (pixbuf), 241);
return pixbuf;
}
GST_START_TEST (test_rgb)
{
GstGdkPixbufSinkTestContext ctx;
GstMessage *msg;
GdkPixbuf *pixbuf;
GstBus *bus;
gint i;
gdkpixbufsink_init_test_context (&ctx, GST_VIDEO_CAPS_RGB WxH, N_BUFFERS);
fail_unless (check_last_pixbuf (&ctx, NULL));
/* start prerolling */
fail_unless_equals_int (gst_element_set_state (ctx.pipe, GST_STATE_PAUSED),
GST_STATE_CHANGE_ASYNC);
/* wait until prerolled */
fail_unless_equals_int (gst_element_get_state (ctx.pipe, NULL, NULL, -1),
GST_STATE_CHANGE_SUCCESS);
bus = gst_element_get_bus (ctx.pipe);
/* find element message from our gdkpixbufsink, ignore element messages from
* other elemements (which just seems prudent to do, we don't expect any) */
while (1) {
msg = gst_bus_pop_filtered (bus, GST_MESSAGE_ELEMENT);
fail_if (msg == NULL, "Expected element message from gdkpixbufsink");
if (msg->src == GST_OBJECT (ctx.sink))
break;
}
pixbuf = check_message_pixbuf (msg, "preroll-pixbuf", 3, FALSE);
fail_unless (check_last_pixbuf (&ctx, pixbuf));
gst_message_unref (msg);
pixbuf = NULL;
/* and go! */
fail_unless_equals_int (gst_element_set_state (ctx.pipe, GST_STATE_PLAYING),
GST_STATE_CHANGE_SUCCESS);
/* This is racy, supposed to make sure locking and refcounting works at
* least to some extent */
for (i = 0; i < 10000; ++i) {
gpointer obj = NULL;
g_object_get (ctx.sink, "last-pixbuf", &obj, NULL);
fail_unless (obj == NULL || GDK_IS_PIXBUF (obj));
if (obj)
g_object_unref (obj);
}
/* there should be as many pixbuf messages as buffers */
for (i = 0; i < N_BUFFERS; ++i) {
/* find element message from our gdkpixbufsink, ignore element messages from
* other elemements (which just seems prudent to do, we don't expect any) */
while (1) {
msg = gst_bus_timed_pop_filtered (bus, -1, GST_MESSAGE_ELEMENT);
fail_if (msg == NULL, "Expected element message from gdkpixbufsink");
if (msg->src == GST_OBJECT (ctx.sink))
break;
}
pixbuf = check_message_pixbuf (msg, "pixbuf", 3, FALSE);
gst_message_unref (msg);
}
/* note: we don't hold a ref to pixbuf any longer here, but it should be ok */
fail_unless (check_last_pixbuf (&ctx, pixbuf));
pixbuf = NULL;
gdkpixbufsink_unset_test_context (&ctx);
gst_object_unref (bus);
}
GST_END_TEST;
GST_START_TEST (test_rgba)
{
GstGdkPixbufSinkTestContext ctx;
GstMessage *msg;
GdkPixbuf *pixbuf;
GstBus *bus;
gint i;
gdkpixbufsink_init_test_context (&ctx, GST_VIDEO_CAPS_RGBA WxH, N_BUFFERS);
fail_unless (check_last_pixbuf (&ctx, NULL));
/* start prerolling */
fail_unless_equals_int (gst_element_set_state (ctx.pipe, GST_STATE_PAUSED),
GST_STATE_CHANGE_ASYNC);
/* wait until prerolled */
fail_unless_equals_int (gst_element_get_state (ctx.pipe, NULL, NULL, -1),
GST_STATE_CHANGE_SUCCESS);
bus = gst_element_get_bus (ctx.pipe);
/* find element message from our gdkpixbufsink, ignore element messages from
* other elemements (which just seems prudent to do, we don't expect any) */
while (1) {
msg = gst_bus_pop_filtered (bus, GST_MESSAGE_ELEMENT);
fail_if (msg == NULL, "Expected element message from gdkpixbufsink");
if (msg->src == GST_OBJECT (ctx.sink))
break;
}
pixbuf = check_message_pixbuf (msg, "preroll-pixbuf", 4, TRUE);
fail_unless (check_last_pixbuf (&ctx, pixbuf));
gst_message_unref (msg);
pixbuf = NULL;
/* and go! */
fail_unless_equals_int (gst_element_set_state (ctx.pipe, GST_STATE_PLAYING),
GST_STATE_CHANGE_SUCCESS);
/* This is racy, supposed to make sure locking and refcounting works at
* least to some extent */
for (i = 0; i < 10000; ++i) {
gpointer obj = NULL;
g_object_get (ctx.sink, "last-pixbuf", &obj, NULL);
fail_unless (obj == NULL || GDK_IS_PIXBUF (obj));
if (obj)
g_object_unref (obj);
}
/* there should be as many pixbuf messages as buffers */
for (i = 0; i < N_BUFFERS; ++i) {
/* find element message from our gdkpixbufsink, ignore element messages from
* other elemements (which just seems prudent to do, we don't expect any) */
while (1) {
msg = gst_bus_timed_pop_filtered (bus, -1, GST_MESSAGE_ELEMENT);
fail_if (msg == NULL, "Expected element message from gdkpixbufsink");
if (msg->src == GST_OBJECT (ctx.sink))
break;
}
pixbuf = check_message_pixbuf (msg, "pixbuf", 4, TRUE);
gst_message_unref (msg);
}
/* note: we don't hold a ref to pixbuf any longer here, but it should be ok */
fail_unless (check_last_pixbuf (&ctx, pixbuf));
pixbuf = NULL;
gdkpixbufsink_unset_test_context (&ctx);
gst_object_unref (bus);
}
GST_END_TEST;
static Suite *
gdkpixbufsink_suite (void)
{
Suite *s = suite_create ("gdkpixbufsink");
TCase *tc_chain = tcase_create ("general");
suite_add_tcase (s, tc_chain);
tcase_add_test (tc_chain, test_rgb);
tcase_add_test (tc_chain, test_rgba);
return s;
}
GST_CHECK_MAIN (gdkpixbufsink);