tests: Add nvdec unit test

tests/check/Makefile.am

@@ -229,6 +229,12 @@ else
 check_nvenc=
 endif
 
+if USE_NVDEC
+check_nvdec=elements/nvdec
+else
+check_nvdec=
+endif
+
 VALGRIND_TO_FIX = \
 	elements/mpeg2enc \
 	elements/mplex    \
@@ -313,6 +319,7 @@ check_PROGRAMS = \
 	$(check_webrtc) \
 	$(check_msdk) \
 	$(check_nvenc) \
+	$(check_nvdec) \
 	$(EXPERIMENTAL_CHECKS)
 
 noinst_HEADERS = elements/mxfdemux.h libs/isoff.h

tests/check/elements/nvdec.c

+/* GStreamer
+ *
+ * Copyright (c) 2010 Sebastian Dröge <sebastian.droege@collabora.co.uk>
+ * Copyright (C) 2018 Seungha Yang <seungha.yang@navercorp.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.
+ */
+
+#include <gst/check/gstcheck.h>
+
+static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
+    GST_PAD_SINK,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS ("video/x-raw, "
+        "format = (string) NV12, "
+        "width = (int) [1, MAX], "
+        "height = (int) [1, MAX], " "framerate = (fraction) [0, MAX]"));
+
+static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
+    GST_PAD_SRC,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS ("video/x-raw, "
+        "format = (string) NV12, "
+        "width = (int) [1, MAX], "
+        "height = (int) [1, MAX], " "framerate = (fraction) [0, MAX]"));
+
+static GstPad *sinkpad, *srcpad;
+
+static GstElement *
+setup_nvdec (const gchar * src_caps_str)
+{
+  GstElement *bin;
+  GstElement *nvenc, *nvdec;
+  GstCaps *srccaps = NULL;
+  GstBus *bus;
+  GstPad *ghostpad, *targetpad;
+
+  if (src_caps_str) {
+    srccaps = gst_caps_from_string (src_caps_str);
+    fail_unless (srccaps != NULL);
+  }
+
+  bin = gst_bin_new ("bin");
+
+  nvenc = gst_check_setup_element ("nvh264enc");
+  fail_unless (nvenc != NULL);
+  nvdec = gst_check_setup_element ("nvdec");
+  fail_unless (nvdec != NULL);
+
+  g_object_set (nvenc, "name", "encoder", NULL);
+  g_object_set (nvdec, "name", "decoder", NULL);
+
+  gst_bin_add_many (GST_BIN (bin), nvenc, nvdec, NULL);
+  fail_unless (gst_element_link_pads (nvenc, "src", nvdec, "sink"));
+
+  targetpad = gst_element_get_static_pad (nvenc, "sink");
+  fail_unless (targetpad != NULL);
+  ghostpad = gst_ghost_pad_new ("sink", targetpad);
+  fail_unless (ghostpad != NULL);
+  gst_element_add_pad (bin, ghostpad);
+  gst_object_unref (targetpad);
+
+  targetpad = gst_element_get_static_pad (nvdec, "src");
+  fail_unless (targetpad != NULL);
+  ghostpad = gst_ghost_pad_new ("src", targetpad);
+  fail_unless (ghostpad != NULL);
+  gst_element_add_pad (bin, ghostpad);
+  gst_object_unref (targetpad);
+
+  srcpad = gst_check_setup_src_pad (bin, &srctemplate);
+  sinkpad = gst_check_setup_sink_pad (bin, &sinktemplate);
+  gst_pad_set_active (srcpad, TRUE);
+  gst_pad_set_active (sinkpad, TRUE);
+  gst_check_setup_events (srcpad, bin, srccaps, GST_FORMAT_TIME);
+
+  bus = gst_bus_new ();
+  gst_element_set_bus (bin, bus);
+
+  fail_unless (gst_element_set_state (bin,
+          GST_STATE_PLAYING) != GST_STATE_CHANGE_FAILURE,
+      "could not set to playing");
+
+  if (srccaps)
+    gst_caps_unref (srccaps);
+
+  buffers = NULL;
+  return bin;
+}
+
+static void
+cleanup_nvdec (GstElement * bin)
+{
+  GstBus *bus;
+
+  /* Free parsed buffers */
+  gst_check_drop_buffers ();
+
+  bus = GST_ELEMENT_BUS (bin);
+  gst_bus_set_flushing (bus, TRUE);
+  gst_object_unref (bus);
+
+  gst_pad_set_active (srcpad, FALSE);
+  gst_pad_set_active (sinkpad, FALSE);
+
+  gst_check_teardown_src_pad (bin);
+  gst_check_teardown_sink_pad (bin);
+  gst_check_teardown_element (bin);
+}
+
+GST_START_TEST (test_decode_simple)
+{
+  GstElement *bin;
+  GstBuffer *buffer;
+  gint i;
+  GList *l;
+  GstSegment seg;
+
+  bin =
+      setup_nvdec
+      ("video/x-raw,format=(string)NV12,width=(int)320,height=(int)240,framerate=(fraction)25/1");
+
+  gst_segment_init (&seg, GST_FORMAT_TIME);
+  seg.stop = gst_util_uint64_scale (20, GST_SECOND, 25);
+  fail_unless (gst_pad_push_event (srcpad, gst_event_new_segment (&seg)));
+
+  buffer = gst_buffer_new_and_alloc (320 * 240 + 2 * 160 * 120);
+  gst_buffer_memset (buffer, 0, 0, -1);
+
+  for (i = 0; i < 20; i++) {
+    GST_BUFFER_TIMESTAMP (buffer) = gst_util_uint64_scale (i, GST_SECOND, 25);
+    GST_BUFFER_DURATION (buffer) = gst_util_uint64_scale (1, GST_SECOND, 25);
+    fail_unless (gst_pad_push (srcpad, gst_buffer_ref (buffer)) == GST_FLOW_OK);
+  }
+
+  gst_buffer_unref (buffer);
+
+  fail_unless (gst_pad_push_event (srcpad, gst_event_new_eos ()));
+
+  /* All buffers must be there now */
+  fail_unless_equals_int (g_list_length (buffers), 20);
+
+  for (l = buffers, i = 0; l; l = l->next, i++) {
+    buffer = l->data;
+
+    fail_unless_equals_uint64 (GST_BUFFER_TIMESTAMP (buffer),
+        gst_util_uint64_scale (i, GST_SECOND, 25));
+    fail_unless_equals_uint64 (GST_BUFFER_DURATION (buffer),
+        gst_util_uint64_scale (1, GST_SECOND, 25));
+  }
+
+  cleanup_nvdec (bin);
+}
+
+GST_END_TEST;
+
+static gboolean
+check_nvdec_available (void)
+{
+  gboolean ret = TRUE;
+  GstElement *nvdec;
+
+  nvdec = gst_element_factory_make ("nvdec", NULL);
+  if (!nvdec) {
+    GST_WARNING ("nvdec is not available, possibly driver load failure");
+    return FALSE;
+  }
+
+  /* GST_STATE_READY is meaning that driver could be loaded */
+  if (gst_element_set_state (nvdec,
+          GST_STATE_PAUSED) != GST_STATE_CHANGE_SUCCESS) {
+    GST_WARNING ("cannot open device");
+    ret = FALSE;
+  }
+
+  gst_element_set_state (nvdec, GST_STATE_NULL);
+  gst_object_unref (nvdec);
+
+  return ret;
+}
+
+static Suite *
+nvdec_suite (void)
+{
+  Suite *s;
+  TCase *tc_chain;
+
+  /* HACK: cuda device init/deinit with fork seems to problematic */
+  g_setenv ("CK_FORK", "no", TRUE);
+
+  s = suite_create ("nvdec");
+  tc_chain = tcase_create ("general");
+
+  suite_add_tcase (s, tc_chain);
+
+  if (!check_nvdec_available ()) {
+    GST_DEBUG ("Skip nvdec test since cannot open device");
+    goto end;
+  }
+
+  tcase_add_test (tc_chain, test_decode_simple);
+
+end:
+  return s;
+}
+
+GST_CHECK_MAIN (nvdec);

tests/check/meson.build

@@ -39,6 +39,7 @@ base_tests = [
   [['elements/msdkh264enc.c'], not have_msdk, [msdk_dep]],
   [['elements/mxfdemux.c']],
   [['elements/mxfmux.c']],
+  [['elements/nvdec.c'], not cuda_header_dep.found(), nvenc_test_deps],
   [['elements/nvenc.c'], not cuda_header_dep.found(), nvenc_test_deps],
   [['elements/pcapparse.c'], false, [libparser_dep]],
   [['elements/pnm.c']],