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/**
* @file
* @brief Unit tests for openshot::ImageWriter
* @author Jonathan Thomas <jonathan@openshot.org>
*
* @section LICENSE
*
* Copyright (c) 2008-2014 OpenShot Studios, LLC
* <http://www.openshotstudios.com/>. This file is part of
* OpenShot Library (libopenshot), an open-source project dedicated to
* delivering high quality video editing and animation solutions to the
* world. For more information visit <http://www.openshot.org/>.
*
* OpenShot Library (libopenshot) 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 3 of the
* License, or (at your option) any later version.
*
* OpenShot Library (libopenshot) 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 OpenShot Library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "UnitTest++.h"
#include "../include/OpenShot.h"
#include "../include/Tests.h"
using namespace std;
using namespace openshot;
#ifdef USE_IMAGEMAGICK
TEST(ImageWriter_Test_Gif)
{
// Reader
stringstream path;
path << TEST_MEDIA_PATH << "sintel_trailer-720p.mp4";
FFmpegReader r(path.str());
r.Open();
/* WRITER ---------------- */
ImageWriter w("output1.gif");
// Set the image output settings (format, fps, width, height, quality, loops, combine)
w.SetVideoOptions("GIF", r.info.fps, r.info.width, r.info.height, 70, 1, true);
// Open writer
w.Open();
// Write some frames (start on frame 500 and go to frame 510)
w.WriteFrame(&r, 500, 504);
// Close writer & reader
w.Close();
r.Close();
// Open up the 5th frame from the newly created GIF
ImageReader r1("output1.gif[4]");
r1.Open();
// Verify various settings
CHECK_EQUAL(r.info.width, r1.info.width);
CHECK_EQUAL(r.info.height, r1.info.height);
// Get a specific frame
std::shared_ptr<Frame> f = r1.GetFrame(8);
// Get the image data for row 500
const unsigned char* pixels = f->GetPixels(500);
int pixel_index = 230 * 4; // pixel 230 (4 bytes per pixel)
// Check image properties
CHECK_CLOSE(20, (int)pixels[pixel_index], 5);
CHECK_CLOSE(18, (int)pixels[pixel_index + 1], 2);
CHECK_CLOSE(11, (int)pixels[pixel_index + 2], 2);
CHECK_EQUAL(255, (int)pixels[pixel_index + 3]);
}
#endif
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