gstreamer/tests/check/elements/clocksync.c
Seungha Yang 69e6cd773a clocksync: Add a new property "sync-to-first" for automatic ts-offset setup
Add a new property so that clocksync can setup "ts-offset" value
based on the first buffer and pipeline's running time when the
first arrived. Newly update "ts-offset" in this case would be
a value that allows outputting the first buffer without clock waiting.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/702>
2021-03-18 14:22:44 +00:00

258 lines
7.9 KiB
C

/* GStreamer
*
* unit test for clocksync
*
* Copyright (C) <2005> Thomas Vander Stichele <thomas at apestaart dot org>
* Copyright (C) <2015> Havard Graff <havard@pexip.com>
* Copyright (C) <2020> Jan Schmidt <jan@centricular.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/check/gstcheck.h>
#include <gst/check/gstharness.h>
GST_START_TEST (test_one_buffer)
{
GstHarness *h = gst_harness_new_parse ("clocksync sync=false");
GstBuffer *buffer_in;
GstBuffer *buffer_out;
gst_harness_set_src_caps_str (h, "mycaps");
buffer_in = gst_buffer_new_and_alloc (4);
ASSERT_BUFFER_REFCOUNT (buffer_in, "buffer", 1);
gst_buffer_fill (buffer_in, 0, "data", 4);
/* pushing gives away my reference ... */
fail_unless_equals_int (GST_FLOW_OK, gst_harness_push (h, buffer_in));
/* ... but it should end up being collected on GstHarness queue */
fail_unless_equals_int (1, gst_harness_buffers_in_queue (h));
buffer_out = gst_harness_pull (h);
fail_unless (buffer_in == buffer_out);
ASSERT_BUFFER_REFCOUNT (buffer_out, "buffer", 1);
/* cleanup */
gst_buffer_unref (buffer_out);
gst_harness_teardown (h);
}
GST_END_TEST;
GST_START_TEST (test_sync_on_timestamp)
{
/* the reason to use the queue in front of the clocksync element
is to effectively make gst_harness_push asynchronous, not locking
up the test, waiting for gst_clock_id_wait */
GstHarness *h = gst_harness_new_parse ("queue ! clocksync");
GstBuffer *buf;
GstClock *clock;
GstClockTime timestamp = 123456789;
/* use testclock */
gst_harness_use_testclock (h);
gst_harness_set_src_caps_str (h, "mycaps");
/* make a buffer and set the timestamp */
buf = gst_buffer_new ();
GST_BUFFER_PTS (buf) = timestamp;
/* push the buffer, and verify it does *not* make it through */
gst_harness_push (h, buf);
fail_unless_equals_int (0, gst_harness_buffers_in_queue (h));
/* verify the clocksync element has registered exactly one GstClockID */
fail_unless (gst_harness_wait_for_clock_id_waits (h, 1, 42));
/* crank the clock and pull the buffer */
gst_harness_crank_single_clock_wait (h);
buf = gst_harness_pull (h);
/* verify that the buffer has the right timestamp, and that the time on
the clock is equal to the timestamp */
fail_unless_equals_int64 (timestamp, GST_BUFFER_PTS (buf));
clock = gst_element_get_clock (h->element);
fail_unless_equals_int64 (timestamp, gst_clock_get_time (clock));
/* cleanup */
gst_object_unref (clock);
gst_buffer_unref (buf);
gst_harness_teardown (h);
}
GST_END_TEST;
GST_START_TEST (test_no_sync_on_timestamp)
{
GstHarness *h = gst_harness_new_parse ("clocksync sync=false");
GstBuffer *buf;
GstClockTime timestamp = 123456789;
/* use testclock */
gst_harness_use_testclock (h);
gst_harness_set_src_caps_str (h, "mycaps");
/* make a buffer and set the timestamp */
buf = gst_buffer_new ();
GST_BUFFER_PTS (buf) = timestamp;
/* push the buffer, and verify it was forwarded immediately */
gst_harness_push (h, buf);
fail_unless_equals_int (1, gst_harness_buffers_in_queue (h));
buf = gst_harness_pull (h);
/* verify that the buffer has the right timestamp */
fail_unless_equals_int64 (timestamp, GST_BUFFER_PTS (buf));
/* cleanup */
gst_buffer_unref (buf);
gst_harness_teardown (h);
}
GST_END_TEST;
GST_START_TEST (test_stopping_element_unschedules_sync)
{
/* the reason to use the queue in front of the clocksync element
is to effectively make gst_harness_push asynchronous, not locking
up the test, waiting for gst_clock_id_wait */
GstHarness *h = gst_harness_new_parse ("queue ! clocksync sync=true");
GstBuffer *buf;
GstClockTime timestamp = 123456789;
/* use testclock */
gst_harness_use_testclock (h);
gst_harness_set_src_caps_str (h, "mycaps");
/* make a buffer and set the timestamp */
buf = gst_buffer_new ();
GST_BUFFER_PTS (buf) = timestamp;
/* push the buffer, and verify it does *not* make it through */
gst_harness_push (h, buf);
fail_unless_equals_int (0, gst_harness_buffers_in_queue (h));
/* verify the clocksync element has registered exactly one GstClockID */
fail_unless (gst_harness_wait_for_clock_id_waits (h, 1, 42));
/* setting clocksync to READY should unschedule the sync */
gst_element_set_state (h->element, GST_STATE_READY);
/* verify the clocksync element no longer waits on the clock */
fail_unless (gst_harness_wait_for_clock_id_waits (h, 0, 42));
/* and that the waiting buffer was dropped */
fail_unless_equals_int (0, gst_harness_buffers_received (h));
gst_harness_teardown (h);
}
GST_END_TEST;
typedef struct
{
guint notify_count;
GstClockTimeDiff ts_offset;
} ClockSyncTestData;
static void
clock_sync_ts_offset_changed_cb (GstElement * clocksync, GParamSpec * pspec,
ClockSyncTestData * data)
{
data->notify_count++;
g_object_get (clocksync, "ts-offset", &data->ts_offset, NULL);
}
GST_START_TEST (test_sync_to_first)
{
/* the reason to use the queue in front of the clocksync element
is to effectively make gst_harness_push asynchronous, not locking
up the test, waiting for gst_clock_id_wait */
GstHarness *h =
gst_harness_new_parse ("queue ! clocksync sync-to-first=true");
GstBuffer *buf;
GstClock *clock;
GstClockTime timestamp = 123456789;
GstElement *clocksync;
ClockSyncTestData data;
data.notify_count = 0;
data.ts_offset = 0;
clocksync = gst_harness_find_element (h, "clocksync");
g_signal_connect (clocksync, "notify::ts-offset",
G_CALLBACK (clock_sync_ts_offset_changed_cb), &data);
gst_object_unref (clocksync);
/* use testclock */
gst_harness_use_testclock (h);
gst_harness_set_src_caps_str (h, "mycaps");
/* make a buffer and set the timestamp */
buf = gst_buffer_new ();
GST_BUFFER_PTS (buf) = timestamp;
/* push the buffer, and verify it does *not* make it through */
gst_harness_push (h, buf);
fail_unless_equals_int (0, gst_harness_buffers_in_queue (h));
/* verify the clocksync element has registered exactly one GstClockID */
fail_unless (gst_harness_wait_for_clock_id_waits (h, 1, 42));
/* crank the clock and pull the buffer */
gst_harness_crank_single_clock_wait (h);
buf = gst_harness_pull (h);
/* verify that the buffer has the right timestamp, and that the time on
the clock is equal to the timestamp */
fail_unless_equals_int64 (timestamp, GST_BUFFER_PTS (buf));
clock = gst_element_get_clock (h->element);
/* this buffer must be pushed without clock waiting */
fail_unless_equals_int64 (gst_clock_get_time (clock), 0);
fail_unless_equals_int (data.notify_count, 1);
fail_unless_equals_int64 (data.ts_offset, -timestamp);
/* cleanup */
gst_object_unref (clock);
gst_buffer_unref (buf);
gst_harness_teardown (h);
}
GST_END_TEST;
static Suite *
clocksync_suite (void)
{
Suite *s = suite_create ("clocksync");
TCase *tc_chain = tcase_create ("general");
suite_add_tcase (s, tc_chain);
tcase_add_test (tc_chain, test_one_buffer);
tcase_add_test (tc_chain, test_sync_on_timestamp);
tcase_add_test (tc_chain, test_stopping_element_unschedules_sync);
tcase_add_test (tc_chain, test_no_sync_on_timestamp);
tcase_add_test (tc_chain, test_sync_to_first);
return s;
}
GST_CHECK_MAIN (clocksync);