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/*
* 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;
}
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