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

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/* GStreamer unit test for wasapi plugin
*
* Copyright (C) 2021 Jakub Janků <janku.jakub.jj@gmail.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>
typedef struct
{
GMainLoop *loop;
GstElement *pipeline;
guint n_buffers;
guint restart_count;
GstState reuse_state;
} SrcReuseTestData;
static gboolean
src_reuse_bus_handler (GstBus * bus, GstMessage * message,
SrcReuseTestData * data)
{
if (GST_MESSAGE_TYPE (message) == GST_MESSAGE_ERROR) {
GST_ERROR ("Got error message from pipeline");
g_main_loop_quit (data->loop);
}
return TRUE;
}
static void
start_pipeline (SrcReuseTestData * data)
{
GstStateChangeReturn ret;
GST_INFO ("Start pipeline");
ret = gst_element_set_state (data->pipeline, GST_STATE_PLAYING);
fail_unless (ret != GST_STATE_CHANGE_FAILURE);
}
static gboolean
restart_pipeline (SrcReuseTestData * data)
{
data->restart_count++;
start_pipeline (data);
return G_SOURCE_REMOVE;
}
static gboolean
handle_handoff (SrcReuseTestData * data)
{
data->n_buffers++;
/* Restart every 10 packets */
if (data->n_buffers > 10) {
GstStateChangeReturn ret;
data->n_buffers = 0;
ret = gst_element_set_state (data->pipeline, data->reuse_state);
fail_unless (ret != GST_STATE_CHANGE_FAILURE);
if (data->restart_count < 2) {
GST_INFO ("Restart pipeline, current restart count %d",
data->restart_count);
g_timeout_add_seconds (1, (GSourceFunc) restart_pipeline, data);
} else {
GST_INFO ("Finish test");
g_main_loop_quit (data->loop);
}
}
return G_SOURCE_REMOVE;
}
static void
on_sink_handoff (GstElement * element, GstBuffer * buffer, GstPad * pad,
SrcReuseTestData * data)
{
g_idle_add ((GSourceFunc) handle_handoff, data);
}
static void
wasapisrc_reuse (GstState reuse_state)
{
GstBus *bus;
GstElement *sink;
SrcReuseTestData data;
memset (&data, 0, sizeof (SrcReuseTestData));
data.loop = g_main_loop_new (NULL, FALSE);
data.pipeline = gst_parse_launch ("wasapisrc provide-clock=false ! queue ! "
"fakesink name=sink async=false", NULL);
fail_unless (data.pipeline != NULL);
data.reuse_state = reuse_state;
sink = gst_bin_get_by_name (GST_BIN (data.pipeline), "sink");
fail_unless (sink);
g_object_set (G_OBJECT (sink), "signal-handoffs", TRUE, NULL);
g_signal_connect (sink, "handoff", G_CALLBACK (on_sink_handoff), &data);
bus = gst_element_get_bus (GST_ELEMENT (data.pipeline));
fail_unless (bus != NULL);
gst_bus_add_watch (bus, (GstBusFunc) src_reuse_bus_handler, &data);
start_pipeline (&data);
g_main_loop_run (data.loop);
fail_unless (data.restart_count == 2);
gst_element_set_start_time (data.pipeline, GST_STATE_NULL);
gst_bus_remove_watch (bus);
gst_object_unref (bus);
gst_object_unref (data.pipeline);
g_main_loop_unref (data.loop);
}
/* https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/issues/1110 */
GST_START_TEST (test_wasapisrc_reuse_null)
{
wasapisrc_reuse (GST_STATE_NULL);
}
GST_END_TEST;
GST_START_TEST (test_wasapisrc_reuse_ready)
{
wasapisrc_reuse (GST_STATE_READY);
}
GST_END_TEST;
typedef struct
{
GMainLoop *loop;
GstElement *pipe;
guint rem_st_changes;
GstState reuse_state;
} SinkPlayReadyTData;
static gboolean
sink_reuse_bus_watch_cb (GstBus * bus, GstMessage * message, gpointer user_data)
{
fail_unless (message->type != GST_MESSAGE_ERROR);
return G_SOURCE_CONTINUE;
}
static gboolean
state_timer_cb (gpointer user_data)
{
SinkPlayReadyTData *tdata = user_data;
GstState nxt_st = tdata->rem_st_changes % 2 == 1 ?
tdata->reuse_state : GST_STATE_PLAYING;
ASSERT_SET_STATE (tdata->pipe, nxt_st, GST_STATE_CHANGE_SUCCESS);
tdata->rem_st_changes--;
if (tdata->rem_st_changes == 0) {
g_main_loop_quit (tdata->loop);
return G_SOURCE_REMOVE;
}
return G_SOURCE_CONTINUE;
}
/* Test that the wasapisink can survive the state change
* from PLAYING to READY and then back to PLAYING */
static void
wasapisink_reuse (GstState reuse_state)
{
SinkPlayReadyTData tdata;
GstBus *bus;
tdata.pipe = gst_parse_launch ("audiotestsrc ! wasapisink async=false", NULL);
fail_unless (tdata.pipe != NULL);
bus = gst_element_get_bus (tdata.pipe);
fail_unless (bus != NULL);
gst_bus_add_watch (bus, sink_reuse_bus_watch_cb, NULL);
tdata.reuse_state = reuse_state;
ASSERT_SET_STATE (tdata.pipe, GST_STATE_PLAYING, GST_STATE_CHANGE_SUCCESS);
tdata.rem_st_changes = 3; /* -> READY -> PLAYING -> QUIT */
g_timeout_add_seconds (1, state_timer_cb, &tdata);
tdata.loop = g_main_loop_new (NULL, FALSE);
g_main_loop_run (tdata.loop);
g_main_loop_unref (tdata.loop);
gst_bus_remove_watch (bus);
gst_object_unref (bus);
gst_object_unref (tdata.pipe);
}
GST_START_TEST (test_wasapisink_reuse_null)
{
wasapisink_reuse (GST_STATE_NULL);
}
GST_END_TEST;
GST_START_TEST (test_wasapisink_reuse_ready)
{
wasapisink_reuse (GST_STATE_READY);
}
GST_END_TEST;
static gboolean
check_wasapi_element (gboolean is_src)
{
gboolean ret = TRUE;
GstElement *elem;
const gchar *elem_name;
if (is_src)
elem_name = "wasapisrc";
else
elem_name = "wasapisink";
elem = gst_element_factory_make (elem_name, NULL);
if (!elem) {
GST_INFO ("%s is not available", elem_name);
return FALSE;
}
/* GST_STATE_READY is meaning that camera is available */
if (gst_element_set_state (elem, GST_STATE_READY) != GST_STATE_CHANGE_SUCCESS) {
GST_INFO ("cannot open device");
ret = FALSE;
}
gst_element_set_state (elem, GST_STATE_NULL);
gst_object_unref (elem);
return ret;
}
static Suite *
wasapi_suite (void)
{
Suite *s = suite_create ("wasapi");
TCase *tc_basic = tcase_create ("general");
gboolean have_src = FALSE;
gboolean have_sink = FALSE;
suite_add_tcase (s, tc_basic);
have_src = check_wasapi_element (TRUE);
have_sink = check_wasapi_element (FALSE);
if (!have_src && !have_sink) {
GST_INFO ("Skipping tests, wasapisrc/wasapisink are unavailable");
} else {
if (have_src) {
tcase_add_test (tc_basic, test_wasapisrc_reuse_null);
tcase_add_test (tc_basic, test_wasapisrc_reuse_ready);
}
if (have_sink) {
tcase_add_test (tc_basic, test_wasapisink_reuse_null);
tcase_add_test (tc_basic, test_wasapisink_reuse_ready);
}
}
return s;
}
GST_CHECK_MAIN (wasapi)