tests: va: Add VA buffer copy tests.

It should only work for raw buffers, but fails on dmabuf since it
should have a drm modifier.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1023>

subprojects/gst-plugins-bad/tests/check/elements/vapostproc.c

@@ -0,0 +1,123 @@
+/* GStreamer
+ *
+ * unit test for VA allocators
+ *
+ * Copyright (C) 2021 Igalia, S.L.
+ *     Author: Víctor Jáquez <vjaquez@igalia.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 <gst/check/gstharness.h>
+#include <gst/video/video.h>
+
+GST_START_TEST (raw_copy)
+{
+  GstHarness *h;
+  GstBuffer *buf, *buf_copy;
+  gboolean ret;
+
+  h = gst_harness_new_parse ("videotestsrc num-buffers=1 ! "
+      "video/x-raw, width=(int)1024, height=(int)768 ! vapostproc");
+  ck_assert (h);
+
+  gst_harness_set_sink_caps_str (h,
+      "video/x-raw, format=(string)NV12, width=(int)3840, height=(int)2160");
+
+  gst_harness_add_propose_allocation_meta (h, GST_VIDEO_META_API_TYPE, NULL);
+  gst_harness_play (h);
+
+  buf = gst_harness_pull (h);
+  ck_assert (buf);
+
+  buf_copy = gst_buffer_new ();
+  ret = gst_buffer_copy_into (buf_copy, buf,
+      GST_BUFFER_COPY_MEMORY | GST_BUFFER_COPY_DEEP, 0, -1);
+  ck_assert (ret);
+
+  gst_clear_buffer (&buf);
+  gst_clear_buffer (&buf_copy);
+
+  gst_harness_teardown (h);
+}
+
+GST_END_TEST;
+
+GST_START_TEST (dmabuf_copy)
+{
+  GstHarness *h;
+  GstBuffer *buf, *buf_copy;
+  gboolean ret;
+
+  h = gst_harness_new_parse ("videotestsrc num-buffers=1 ! "
+      "video/x-raw, width=(int)1024, height=(int)768 ! vapostproc");
+  ck_assert (h);
+
+  gst_harness_set_sink_caps_str (h,
+      "video/x-raw(memory:DMABuf), format=(string)NV12, width=(int)3840, height=(int)2160");
+
+  gst_harness_add_propose_allocation_meta (h, GST_VIDEO_META_API_TYPE, NULL);
+  gst_harness_play (h);
+
+  buf = gst_harness_pull (h);
+  ck_assert (buf);
+
+  buf_copy = gst_buffer_new ();
+  ret = gst_buffer_copy_into (buf_copy, buf,
+      GST_BUFFER_COPY_MEMORY | GST_BUFFER_COPY_DEEP, 0, -1);
+
+  if (gst_buffer_n_memory (buf_copy) == 1)
+    ck_assert (ret == TRUE);
+  /* else it will depend on the drm modifier */
+
+  gst_clear_buffer (&buf);
+  gst_clear_buffer (&buf_copy);
+
+  gst_harness_teardown (h);
+}
+
+GST_END_TEST;
+
+int
+main (int argc, char **argv)
+{
+  GstElement *vpp;
+  Suite *s;
+  TCase *tc_chain;
+
+  gst_check_init (&argc, &argv);
+
+  vpp = gst_element_factory_make ("vapostproc", NULL);
+  if (!vpp)
+    return EXIT_SUCCESS;        /* not available vapostproc */
+  gst_object_unref (vpp);
+
+  s = suite_create ("va");
+  tc_chain = tcase_create ("copy");
+
+  suite_add_tcase (s, tc_chain);
+
+  tcase_add_test (tc_chain, raw_copy);
+  tcase_add_test (tc_chain, dmabuf_copy);
+
+  return gst_check_run_suite (s, "va", __FILE__);
+}

subprojects/gst-plugins-bad/tests/check/meson.build

@@ -140,6 +140,13 @@ if host_machine.system() != 'windows'
   ]
 endif
 
+# linux only tests
+if host_machine.system() == 'linux'
+  base_tests += [
+    [['elements/vapostproc.c'], not gstva_dep.found(), [gstva_dep]],
+  ]
+endif
+
 test_defines = [
   '-UG_DISABLE_ASSERT',
   '-UG_DISABLE_CAST_CHECKS',