tests: Add the tests for CRF Checker element

This adds tests to ensure the avtpcrfchecker element validates and drops the
packets which do not match the CRF Synchronization criteria.

2 files changed, 248 insertions, 0 deletions

diff --git a/tests/check/elements/avtpcrfcheck.c b/tests/check/elements/avtpcrfcheck.c
new file mode 100644
index 000000000..efe4a2060
--- /dev/null
+++ b/tests/check/elements/avtpcrfcheck.c
@@ -0,0 +1,247 @@
+/*
+ * GStreamer AVTP Plugin
+ * Copyright (C) 2019 Intel Corporation
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301 USA
+ */
+
+#include <avtp.h>
+#include <avtp_crf.h>
+#include <avtp_aaf.h>
+#include <avtp_cvf.h>
+#include <gst/check/gstcheck.h>
+#include <gst/check/gstharness.h>
+#include "../../../ext/avtp/gstavtpcrfutil.h"
+
+#define STREAM_ID 0xDEADC0DEDEADC0DE
+
+static GstHarness *
+setup_harness (void)
+{
+  GstHarness *h;
+
+  h = gst_harness_new_parse
+      ("avtpcrfcheck streamid=0xDEADC0DEDEADC0DE drop_invalid=1");
+
+  if (!h)
+    GST_ERROR ("Cannot create harness!");
+  gst_harness_set_src_caps_str (h, "application/x-avtp");
+  return h;
+}
+
+static void
+fill_buffer_video_data (struct avtp_stream_pdu *pdu)
+{
+  const gint DATA_LEN = sizeof (guint32) + 3;
+
+  avtp_cvf_pdu_init (pdu, AVTP_CVF_FORMAT_SUBTYPE_H264);
+  avtp_cvf_pdu_set (pdu, AVTP_CVF_FIELD_STREAM_ID, STREAM_ID);
+  avtp_cvf_pdu_set (pdu, AVTP_CVF_FIELD_TV, 1);
+  avtp_cvf_pdu_set (pdu, AVTP_CVF_FIELD_M, 1);
+  avtp_cvf_pdu_set (pdu, AVTP_CVF_FIELD_TIMESTAMP, 0);
+  avtp_cvf_pdu_set (pdu, AVTP_CVF_FIELD_H264_PTV, 1);
+  avtp_cvf_pdu_set (pdu, AVTP_CVF_FIELD_H264_TIMESTAMP, 0);
+  avtp_cvf_pdu_set (pdu, AVTP_CVF_FIELD_STREAM_DATA_LEN, DATA_LEN);
+}
+
+static void
+fill_buffer_audio_data (struct avtp_stream_pdu *pdu)
+{
+  const int DATA_LEN = 4;
+
+  avtp_aaf_pdu_init (pdu);
+  avtp_aaf_pdu_set (pdu, AVTP_AAF_FIELD_TV, 1);
+  avtp_aaf_pdu_set (pdu, AVTP_AAF_FIELD_STREAM_ID, 0xDEADC0DEDEADC0DE);
+  avtp_aaf_pdu_set (pdu, AVTP_AAF_FIELD_FORMAT, AVTP_AAF_FORMAT_INT_16BIT);
+  avtp_aaf_pdu_set (pdu, AVTP_AAF_FIELD_NSR, AVTP_AAF_PCM_NSR_48KHZ);
+  avtp_aaf_pdu_set (pdu, AVTP_AAF_FIELD_CHAN_PER_FRAME, 2);
+  avtp_aaf_pdu_set (pdu, AVTP_AAF_FIELD_BIT_DEPTH, 16);
+  avtp_aaf_pdu_set (pdu, AVTP_AAF_FIELD_SP, AVTP_AAF_PCM_SP_NORMAL);
+  avtp_aaf_pdu_set (pdu, AVTP_AAF_FIELD_TIMESTAMP, 0);
+  avtp_aaf_pdu_set (pdu, AVTP_AAF_FIELD_STREAM_DATA_LEN, DATA_LEN);
+}
+
+static GstBuffer *
+create_input_buffer (GstHarness * h, guint32 subtype)
+{
+  struct avtp_stream_pdu *pdu;
+  GstMapInfo info;
+  GstBuffer *buf;
+  const gint DATA_LEN = sizeof (guint32) + 3;
+
+  buf = gst_harness_create_buffer (h, sizeof (struct avtp_stream_pdu) +
+      DATA_LEN);
+
+  gst_buffer_map (buf, &info, GST_MAP_WRITE);
+  pdu = (struct avtp_stream_pdu *) info.data;
+
+  if (subtype == AVTP_SUBTYPE_AAF)
+    fill_buffer_audio_data (pdu);
+  else
+    fill_buffer_video_data (pdu);
+
+  gst_buffer_unmap (buf, &info);
+
+  return buf;
+}
+
+static void
+set_buffer_tstamps (GstBuffer * buf, GstClockTime avtp_tstamp,
+    GstClockTime h264_tstamp)
+{
+  struct avtp_stream_pdu *pdu;
+  GstMapInfo info;
+  guint32 type;
+
+  gst_buffer_map (buf, &info, GST_MAP_WRITE);
+  pdu = (struct avtp_stream_pdu *) info.data;
+
+  avtp_pdu_get ((struct avtp_common_pdu *) pdu, AVTP_FIELD_SUBTYPE, &type);
+  if (type == AVTP_SUBTYPE_AAF)
+    avtp_aaf_pdu_set (pdu, AVTP_AAF_FIELD_TIMESTAMP, avtp_tstamp);
+  else if (type == AVTP_SUBTYPE_CVF) {
+    avtp_cvf_pdu_set (pdu, AVTP_CVF_FIELD_TIMESTAMP, avtp_tstamp);
+    avtp_cvf_pdu_set (pdu, AVTP_CVF_FIELD_H264_TIMESTAMP, h264_tstamp);
+  }
+  gst_buffer_unmap (buf, &info);
+}
+
+static void
+test_crf_tstamps (GstHarness * h, GstBuffer * buf, GstClockTime avtp_tstamp,
+    GstClockTime h264_tstamp, guint expected_buffers)
+{
+  set_buffer_tstamps (buf, avtp_tstamp, h264_tstamp);
+  gst_harness_push (h, gst_buffer_copy (buf));
+  fail_unless_equals_uint64 (gst_harness_buffers_received (h),
+      expected_buffers);
+}
+
+GST_START_TEST (test_properties)
+{
+  const guint64 streamid = 0xAABBCCDDEEFF0001;
+  const gchar *address = "01:AA:BB:CC:DD:EE";
+  const gchar *ifname = "enp1s0";
+  const gboolean drop_invalid = TRUE;
+  GstElement *element;
+  guint64 val64;
+  gboolean val;
+  gchar *str;
+
+  element = gst_check_setup_element ("avtpcrfcheck");
+
+  g_object_set (G_OBJECT (element), "ifname", ifname, NULL);
+  g_object_get (G_OBJECT (element), "ifname", &str, NULL);
+  fail_unless_equals_string (str, ifname);
+  g_free (str);
+
+  g_object_set (G_OBJECT (element), "address", address, NULL);
+  g_object_get (G_OBJECT (element), "address", &str, NULL);
+  fail_unless_equals_string (str, address);
+  g_free (str);
+
+  g_object_set (G_OBJECT (element), "streamid", streamid, NULL);
+  g_object_get (G_OBJECT (element), "streamid", &val64, NULL);
+  fail_unless (val64 == streamid);
+
+  g_object_set (G_OBJECT (element), "drop-invalid", drop_invalid, NULL);
+  g_object_get (G_OBJECT (element), "drop-invalid", &val, NULL);
+  fail_unless (val == drop_invalid);
+}
+
+GST_END_TEST;
+
+GST_START_TEST (test_crf_cvf_data)
+{
+  GstAvtpCrfBase *avtpcrfbase;
+  GstBuffer *buf;
+  GstHarness *h;
+
+  h = setup_harness ();
+
+  buf = create_input_buffer (h, AVTP_SUBTYPE_CVF);
+  avtpcrfbase = (GstAvtpCrfBase *) gst_harness_find_element (h, "avtpcrfcheck");
+  avtpcrfbase->thread_data.average_period = 3300;
+  avtpcrfbase->thread_data.current_ts = 110000;
+
+  test_crf_tstamps (h, buf, 110000, 109204, 1);
+  test_crf_tstamps (h, buf, 113600, 119400, 2);
+  test_crf_tstamps (h, buf, 218000, 119400, 2);
+  test_crf_tstamps (h, buf, 218000, 102000, 2);
+
+  gst_harness_teardown (h);
+}
+
+GST_END_TEST;
+
+GST_START_TEST (test_crf_aaf_data)
+{
+  GstAvtpCrfBase *avtpcrfbase;
+  GstBuffer *buf;
+  GstHarness *h;
+
+  h = setup_harness ();
+
+  buf = create_input_buffer (h, AVTP_SUBTYPE_AAF);
+  avtpcrfbase = (GstAvtpCrfBase *) gst_harness_find_element (h, "avtpcrfcheck");
+  avtpcrfbase->thread_data.average_period = 3300;
+  avtpcrfbase->thread_data.current_ts = 110000;
+
+  test_crf_tstamps (h, buf, 113300, 0, 1);
+  test_crf_tstamps (h, buf, 112900, 0, 2);
+  test_crf_tstamps (h, buf, 210000, 0, 2);
+
+  gst_harness_teardown (h);
+}
+
+GST_END_TEST;
+
+GST_START_TEST (test_crf_period_zero)
+{
+  GstAvtpCrfBase *avtpcrfbase;
+  GstBuffer *buf;
+  GstHarness *h;
+
+  h = setup_harness ();
+
+  buf = create_input_buffer (h, AVTP_SUBTYPE_CVF);
+  avtpcrfbase = (GstAvtpCrfBase *) gst_harness_find_element (h, "avtpcrfcheck");
+  avtpcrfbase->thread_data.average_period = 0.0;
+  avtpcrfbase->thread_data.current_ts = 110;
+
+  test_crf_tstamps (h, buf, 112, 110, 1);
+
+  gst_harness_teardown (h);
+}
+
+GST_END_TEST;
+
+static Suite *
+avtpcrfcheck_suite (void)
+{
+  Suite *s = suite_create ("avtpcrfcheck");
+  TCase *tc_chain = tcase_create ("general");
+
+  suite_add_tcase (s, tc_chain);
+  tcase_add_test (tc_chain, test_properties);
+  tcase_add_test (tc_chain, test_crf_cvf_data);
+  tcase_add_test (tc_chain, test_crf_aaf_data);
+  tcase_add_test (tc_chain, test_crf_period_zero);
+
+  return s;
+}
+
+GST_CHECK_MAIN (avtpcrfcheck);
diff --git a/tests/check/meson.build b/tests/check/meson.build
index 444d36b3a..eab03d73d 100644
--- a/tests/check/meson.build
+++ b/tests/check/meson.build
@@ -82,6 +82,7 @@ if host_machine.system() != 'windows'
     [['elements/avtpaafpay.c'], not avtp_dep.found(), [avtp_dep]],
     [['elements/avtpaafdepay.c'], not avtp_dep.found(), [avtp_dep]],
     [['elements/avtpcrfbase.c'], not avtp_dep.found(), [avtp_dep]],
+    [['elements/avtpcrfcheck.c'], not avtp_dep.found(), [avtp_dep], ['../../ext/avtp/gstavtpcrfutil.c']],
     [['elements/avtpcrfsync.c'], not avtp_dep.found(), [avtp_dep], ['../../ext/avtp/gstavtpcrfutil.c', '../../ext/avtp/gstavtpcrfbase.c']],
     [['elements/avtpcvfpay.c'], not avtp_dep.found(), [avtp_dep]],
     [['elements/avtpcvfdepay.c'], not avtp_dep.found(), [avtp_dep]],