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/*
Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
This program 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 2 of the License, or
(at your option) any later version.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "combiner.h"
#include "image.h"
using boost::shared_ptr;
Combiner::Combiner (shared_ptr<Log> log)
: VideoProcessor (log)
{
}
/** Process video for the left half of the frame.
* Subtitle parameter will be ignored.
* @param image Frame image.
*/
void
Combiner::process_video (shared_ptr<Image> image, bool, shared_ptr<Subtitle>)
{
_image = image;
}
/** Process video for the right half of the frame.
* @param image Frame image.
* @param sub Subtitle (which will be put onto the whole frame)
*/
void
Combiner::process_video_b (shared_ptr<Image> image, bool, shared_ptr<Subtitle> sub)
{
/* Copy the right half of this image into our _image */
/* XXX: this should probably be in the Image class */
for (int i = 0; i < image->components(); ++i) {
int const line_size = image->line_size()[i];
int const half_line_size = line_size / 2;
int const stride = image->stride()[i];
uint8_t* p = _image->data()[i];
uint8_t* q = image->data()[i];
for (int j = 0; j < image->lines (i); ++j) {
memcpy (p + half_line_size, q + half_line_size, half_line_size);
p += stride;
q += stride;
}
}
Video (_image, false, sub);
_image.reset ();
}
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