gstreamer/tests/examples/rpicamsrc/test_orientation.c

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/*
* Copyright (c) 2015, Igalia S.L
* Author: Philippe Normand <philn@igalia.com>
* Licence: LGPL. (See COPYING.LGPL)
*/
#include <glib.h>
#include <gst/gst.h>
#include <gst/video/videoorientation.h>
#define PIPELINE "rpicamsrc name=src preview=0 fullscreen=0 ! h264parse ! omxh264dec ! glimagesink sync=0"
static void
configure_orientation (GstVideoOrientation * orientation)
{
gboolean flip;
if (gst_video_orientation_get_hflip (orientation, &flip)) {
g_print ("current hflip: %s\n", flip ? "enabled" : "disabled");
if (g_getenv ("HFLIP"))
gst_video_orientation_set_hflip (orientation, TRUE);
gst_video_orientation_get_hflip (orientation, &flip);
g_print ("new hflip: %s\n", flip ? "enabled" : "disabled");
}
if (gst_video_orientation_get_vflip (orientation, &flip)) {
g_print ("current vflip: %s\n", flip ? "enabled" : "disabled");
if (g_getenv ("VFLIP"))
gst_video_orientation_set_vflip (orientation, TRUE);
gst_video_orientation_get_vflip (orientation, &flip);
g_print ("new vflip: %s\n", flip ? "enabled" : "disabled");
}
}
int
main (int argc, char **argv)
{
GMainLoop *loop;
GstElement *pipeline;
GError *error = NULL;
GstElement *src;
GstVideoOrientation *orientation;
gst_init (&argc, &argv);
loop = g_main_loop_new (NULL, FALSE);
pipeline = gst_parse_launch (PIPELINE, &error);
if (error != NULL) {
g_printerr ("Error parsing '%s': %s", PIPELINE, error->message);
g_error_free (error);
return -1;
}
gst_element_set_state (pipeline, GST_STATE_PLAYING);
src = gst_bin_get_by_name (GST_BIN (pipeline), "src");
if (!src) {
g_printerr ("Source element not found\n");
return -2;
}
orientation = GST_VIDEO_ORIENTATION (src);
configure_orientation (orientation);
g_main_loop_run (loop);
gst_object_unref (src);
gst_element_set_state (pipeline, GST_STATE_NULL);
return 0;
}