2013-10-18 12:38:09 -05:00
|
|
|
/**
|
|
|
|
|
* @file
|
|
|
|
|
* @brief Source file for De-interlace class
|
|
|
|
|
* @author Jonathan Thomas <jonathan@openshot.org>
|
|
|
|
|
*
|
|
|
|
|
* @section LICENSE
|
|
|
|
|
*
|
|
|
|
|
* Copyright (c) 2008-2013 OpenShot Studios, LLC
|
|
|
|
|
* (http://www.openshotstudios.com). This file is part of
|
|
|
|
|
* OpenShot Library (http://www.openshot.org), an open-source project
|
|
|
|
|
* dedicated to delivering high quality video editing and animation solutions
|
|
|
|
|
* to the world.
|
|
|
|
|
*
|
|
|
|
|
* OpenShot Library is free software: you can redistribute it and/or modify
|
|
|
|
|
* it under the terms of the GNU 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 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 General Public License for more details.
|
|
|
|
|
*
|
|
|
|
|
* You should have received a copy of the GNU General Public License
|
|
|
|
|
* along with OpenShot Library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#include "../include/effects/Deinterlace.h"
|
|
|
|
|
|
|
|
|
|
using namespace openshot;
|
|
|
|
|
|
|
|
|
|
// Default constructor
|
|
|
|
|
Deinterlace::Deinterlace(bool UseOddLines) : isOdd(UseOddLines)
|
|
|
|
|
{
|
|
|
|
|
/// Initialize the values of the EffectInfo struct.
|
|
|
|
|
InitEffectInfo();
|
|
|
|
|
|
|
|
|
|
/// Set the effect info
|
|
|
|
|
info.name = "Deinterlace";
|
|
|
|
|
info.description = "Remove interlacing from a video (i.e. even or odd horizontal lines)";
|
|
|
|
|
info.has_audio = false;
|
|
|
|
|
info.has_video = true;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// This method is required for all derived classes of EffectBase, and returns a
|
|
|
|
|
// modified openshot::Frame object
|
|
|
|
|
tr1::shared_ptr<Frame> Deinterlace::GetFrame(tr1::shared_ptr<Frame> frame, int frame_number)
|
|
|
|
|
{
|
|
|
|
|
// Calculate the new size (used to shrink and expand the image, to remove interlacing)
|
|
|
|
|
Magick::Geometry original_size = frame->GetImage()->size();
|
|
|
|
|
Magick::Geometry frame_size = frame->GetImage()->size();
|
|
|
|
|
frame_size.aspect(false); // allow the image to be re-sized to an invalid aspect ratio
|
|
|
|
|
frame_size.height(frame_size.height() / 2.0); // height set to 50% of original height
|
|
|
|
|
|
|
|
|
|
if (isOdd)
|
|
|
|
|
// Roll the image by 1 pixel, to use the ODD horizontal lines (instead of the even ones)
|
|
|
|
|
frame->GetImage()->roll(0,1);
|
|
|
|
|
|
|
|
|
|
// Resample the image to 50% height (to remove every other line)
|
|
|
|
|
frame->GetImage()->sample(frame_size);
|
|
|
|
|
|
|
|
|
|
// Resize image back to original height
|
|
|
|
|
frame->GetImage()->resize(original_size);
|
|
|
|
|
|
|
|
|
|
// return the modified frame
|
|
|
|
|
return frame;
|
|
|
|
|
}
|
2013-12-06 00:40:26 -06:00
|
|
|
|
|
|
|
|
// Generate Json::JsonValue for this object
|
|
|
|
|
Json::Value Deinterlace::JsonValue() {
|
|
|
|
|
|
|
|
|
|
// Create root json object
|
|
|
|
|
Json::Value root = EffectBase::JsonValue(); // get parent properties
|
|
|
|
|
root["isOdd"] = isOdd;
|
|
|
|
|
|
|
|
|
|
// return JsonValue
|
|
|
|
|
return root;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// Load Json::JsonValue into this object
|
|
|
|
|
void Deinterlace::Json(Json::Value root) {
|
|
|
|
|
|
|
|
|
|
// Set parent data
|
|
|
|
|
EffectBase::Json(root);
|
|
|
|
|
|
|
|
|
|
// Set data from Json (if key is found)
|
|
|
|
|
if (root["isOdd"] != Json::nullValue)
|
|
|
|
|
isOdd = root["isOdd"].asBool();
|
|
|
|
|
}
|
