tests: elements: add test for vaapipostproc

https://bugzilla.gnome.org/show_bug.cgi?id=754885

tests/elements/Makefile.am

@@ -1,5 +1,6 @@
 noinst_PROGRAMS = \
 	test-vaapisink  \
+	test-vaapipostproc  \
 	test-roi  \
 	$(NULL)
 
@@ -18,6 +19,10 @@ test_vaapisink_SOURCES	= test-vaapisink.c
 test_vaapisink_CFLAGS	= $(TEST_CFLAGS)
 test_vaapisink_LDADD	= $(TEST_LIBS)
 
+test_vaapipostproc_SOURCES	= test-vaapipostproc.c
+test_vaapipostproc_CFLAGS	= $(TEST_CFLAGS)
+test_vaapipostproc_LDADD	= $(TEST_LIBS)
+
 test_roi_SOURCES = test-roi.c
 test_roi_CFLAGS  = $(TEST_CFLAGS)
 test_roi_LDADD   = $(TEST_LIBS)

tests/elements/test-vaapipostproc.c

@@ -0,0 +1,157 @@
+/*
+ *  test-vaapipostproc.c - Testsuite for VAAPI Postprocessor
+ *
+ *  Copyright (C) 2017 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 <stdio.h>
+#include <gst/gst.h>
+#include <gst/base/gstbasetransform.h>
+
+typedef struct _CustomData
+{
+  GstElement *pipeline;
+  GstElement *postproc;
+  GMainLoop *loop;
+} AppData;
+
+static gboolean
+_check_passthrough_mode (gpointer user_data)
+{
+  gboolean ret;
+  AppData *data = (AppData *) user_data;
+
+  ret = gst_base_transform_is_passthrough (GST_BASE_TRANSFORM (data->postproc));
+
+  if (ret)
+    gst_println ("Now this pipeline is on passthrough mode");
+  else
+    gst_println ("Now this pipeline is NOT on passthrough mode");
+
+  return FALSE;
+}
+
+static void
+set_contrast (AppData * data)
+{
+  static gfloat value = 1.0;
+
+  value = value == 1.0 ? 0.5 : 1.0;
+  g_object_set (data->postproc, "contrast", value, NULL);
+  gst_println ("contrast value is changed to %f", value);
+
+  g_timeout_add (300, _check_passthrough_mode, data);
+}
+
+static void
+change_size (AppData * data)
+{
+  static gint i = 0;
+  if (i == 0) {
+    g_object_set (data->postproc, "width", 1280, "height", 720, NULL);
+    gst_println ("frame size is changed to 1280x720");
+    i++;
+  } else {
+    g_object_set (data->postproc, "width", 0, "height", 0, NULL);
+    gst_println ("frame size is changed to default");
+    i = 0;
+  }
+
+  g_timeout_add (300, _check_passthrough_mode, data);
+}
+
+/* Process keyboard input */
+static gboolean
+handle_keyboard (GIOChannel * source, GIOCondition cond, AppData * data)
+{
+  gchar *str = NULL;
+
+  if (g_io_channel_read_line (source, &str, NULL, NULL,
+          NULL) != G_IO_STATUS_NORMAL) {
+    return TRUE;
+  }
+
+  switch (g_ascii_tolower (str[0])) {
+    case 's':{
+      set_contrast (data);
+      break;
+    }
+    case 'c':{
+      change_size (data);
+      break;
+    }
+    case 'q':
+      g_main_loop_quit (data->loop);
+      break;
+    default:
+      break;
+  }
+
+  g_free (str);
+
+  return TRUE;
+}
+
+int
+main (int argc, char *argv[])
+{
+  AppData data = { 0, };
+  GstStateChangeReturn ret;
+  GIOChannel *io_stdin;
+
+  /* Initialize GStreamer */
+  gst_init (&argc, &argv);
+
+  /* Print usage map */
+  gst_println ("USAGE: Choose one of the following options, then press enter:\n"
+      " 's' to set contrast\n" " 'c' to change size\n" " 'q' to quit\n");
+
+  data.pipeline =
+      gst_parse_launch
+      ("videotestsrc name=src ! vaapih264enc ! vaapih264dec ! vaapipostproc name=postproc ! vaapisink",
+      NULL);
+  data.postproc = gst_bin_get_by_name (GST_BIN (data.pipeline), "postproc");
+
+  /* Add a keyboard watch so we get notified of keystrokes */
+  io_stdin = g_io_channel_unix_new (fileno (stdin));
+  g_io_add_watch (io_stdin, G_IO_IN, (GIOFunc) handle_keyboard, &data);
+
+  /* Start playing */
+  ret = gst_element_set_state (data.pipeline, GST_STATE_PLAYING);
+  if (ret == GST_STATE_CHANGE_FAILURE) {
+    g_printerr ("Unable to set the pipeline to the playing state.\n");
+    gst_object_unref (data.pipeline);
+    return -1;
+  }
+
+  g_timeout_add (300, _check_passthrough_mode, &data);
+
+  /* Create a GLib Main Loop and set it to run */
+  data.loop = g_main_loop_new (NULL, FALSE);
+  g_main_loop_run (data.loop);
+
+  /* Free resources */
+  g_main_loop_unref (data.loop);
+  g_io_channel_unref (io_stdin);
+  gst_element_set_state (data.pipeline, GST_STATE_NULL);
+
+  gst_object_unref (data.postproc);
+  gst_object_unref (data.pipeline);
+
+  return 0;
+}