gstreamer/subprojects/gst-plugins-bad/tests/check/elements/unixfd.c

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/* GStreamer unix file-descriptor source/sink tests
*
* Copyright (C) 2023 Netflix Inc.
* Author: Xavier Claessens <xavier.claessens@collabora.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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <gst/check/gstcheck.h>
#include <glib/gstdio.h>
static void
wait_preroll (GstElement * element)
{
GstStateChangeReturn state_res =
gst_element_set_state (element, GST_STATE_PLAYING);
fail_unless (state_res != GST_STATE_CHANGE_FAILURE);
state_res = gst_element_get_state (element, NULL, NULL, GST_CLOCK_TIME_NONE);
fail_unless (state_res == GST_STATE_CHANGE_SUCCESS);
}
static GstPadProbeReturn
buffer_pad_probe_cb (GstPad * pad, GstPadProbeInfo * info, gpointer user_data)
{
GstBuffer *buffer = GST_PAD_PROBE_INFO_BUFFER (info);
if (buffer != NULL) {
GstCustomMeta *cmeta =
gst_buffer_add_custom_meta (buffer, "unix-fd-custom-meta");
GstStructure *s = gst_custom_meta_get_structure (cmeta);
gst_structure_set (s, "field", G_TYPE_INT, 42, NULL);
}
return GST_PAD_PROBE_OK;
}
GST_START_TEST (test_unixfd_videotestsrc)
{
GError *error = NULL;
const gchar *tags[] = { NULL };
gst_meta_register_custom ("unix-fd-custom-meta", tags, NULL, NULL, NULL);
/* Ensure we don't have socket from previous failed test */
gchar *socket_path =
g_strdup_printf ("%s/unixfd-test-socket", g_get_user_runtime_dir ());
if (g_file_test (socket_path, G_FILE_TEST_EXISTS)) {
g_unlink (socket_path);
}
/* Setup source */
gchar *pipeline_str =
g_strdup_printf ("videotestsrc name=src ! unixfdsink socket-path=%s",
socket_path);
GstElement *pipeline_service = gst_parse_launch (pipeline_str, &error);
g_assert_no_error (error);
g_free (pipeline_str);
/* Add a custom meta on each buffer */
GstElement *src = gst_bin_get_by_name (GST_BIN (pipeline_service), "src");
GstPad *pad = gst_element_get_static_pad (src, "src");
gst_pad_add_probe (pad, GST_PAD_PROBE_TYPE_BUFFER, buffer_pad_probe_cb, NULL,
NULL);
gst_object_unref (src);
gst_object_unref (pad);
wait_preroll (pipeline_service);
/* Setup sink */
pipeline_str =
g_strdup_printf ("unixfdsrc socket-path=%s ! fakesink name=sink",
socket_path);
GstElement *pipeline_client_1 = gst_parse_launch (pipeline_str, &error);
g_assert_no_error (error);
wait_preroll (pipeline_client_1);
/* disconnect, reconnect */
fail_unless (gst_element_set_state (pipeline_client_1,
GST_STATE_READY) == GST_STATE_CHANGE_SUCCESS);
wait_preroll (pipeline_client_1);
/* Connect 2nd sink */
GstElement *pipeline_client_2 = gst_parse_launch (pipeline_str, &error);
g_assert_no_error (error);
wait_preroll (pipeline_client_2);
/* Check we received our custom meta */
GstSample *sample;
GstElement *sink = gst_bin_get_by_name (GST_BIN (pipeline_client_2), "sink");
g_object_get (sink, "last-sample", &sample, NULL);
fail_unless (sample);
GstBuffer *buffer = gst_sample_get_buffer (sample);
GstCustomMeta *cmeta =
gst_buffer_get_custom_meta (buffer, "unix-fd-custom-meta");
fail_unless (cmeta);
GstStructure *s = gst_custom_meta_get_structure (cmeta);
gint value;
fail_unless (gst_structure_get_int (s, "field", &value));
fail_unless_equals_int (value, 42);
gst_object_unref (sink);
gst_sample_unref (sample);
/* Teardown */
fail_unless (gst_element_set_state (pipeline_client_1,
GST_STATE_NULL) == GST_STATE_CHANGE_SUCCESS);
fail_unless (gst_element_set_state (pipeline_client_2,
GST_STATE_NULL) == GST_STATE_CHANGE_SUCCESS);
fail_unless (gst_element_set_state (pipeline_service,
GST_STATE_NULL) == GST_STATE_CHANGE_SUCCESS);
fail_if (g_file_test (socket_path, G_FILE_TEST_EXISTS));
gst_object_unref (pipeline_service);
gst_object_unref (pipeline_client_1);
gst_object_unref (pipeline_client_2);
g_free (socket_path);
g_free (pipeline_str);
}
GST_END_TEST;
static Suite *
unixfd_suite (void)
{
Suite *s = suite_create ("unixfd");
TCase *tc = tcase_create ("unixfd");
suite_add_tcase (s, tc);
tcase_add_test (tc, test_unixfd_videotestsrc);
return s;
}
GST_CHECK_MAIN (unixfd);