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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 <iostream>
#include <boost/filesystem.hpp>
#include <Magick++.h>
#include "imagemagick_content.h"
#include "imagemagick_decoder.h"
#include "image.h"
#include "film.h"
#include "exceptions.h"
#include "i18n.h"
using std::cout;
using boost::shared_ptr;
using libdcp::Size;
ImageMagickDecoder::ImageMagickDecoder (shared_ptr<const Film> f, shared_ptr<const ImageMagickContent> c)
: Decoder (f)
, VideoDecoder (f, c)
, _imagemagick_content (c)
{
}
libdcp::Size
ImageMagickDecoder::video_size () const
{
if (!_video_size) {
using namespace MagickCore;
Magick::Image* image = new Magick::Image (_imagemagick_content->file().string());
_video_size = libdcp::Size (image->columns(), image->rows());
delete image;
}
return _video_size.get ();
}
int
ImageMagickDecoder::video_length () const
{
return _imagemagick_content->video_length ();
}
float
ImageMagickDecoder::video_frame_rate () const
{
boost::shared_ptr<const Film> f = _film.lock ();
if (!f) {
return 24;
}
return f->dcp_video_frame_rate ();
}
void
ImageMagickDecoder::pass ()
{
if (_next_video >= _imagemagick_content->length ()) {
return;
}
if (_image) {
video (_image, true, _next_video);
return;
}
Magick::Image* magick_image = new Magick::Image (_imagemagick_content->file().string ());
_video_size = libdcp::Size (magick_image->columns(), magick_image->rows());
_image.reset (new SimpleImage (PIX_FMT_RGB24, _video_size.get(), false));
using namespace MagickCore;
uint8_t* p = _image->data()[0];
for (int y = 0; y < _video_size->height; ++y) {
for (int x = 0; x < _video_size->width; ++x) {
Magick::Color c = magick_image->pixelColor (x, y);
*p++ = c.redQuantum() * 255 / QuantumRange;
*p++ = c.greenQuantum() * 255 / QuantumRange;
*p++ = c.blueQuantum() * 255 / QuantumRange;
}
}
delete magick_image;
_image = _image->crop (_imagemagick_content->crop(), true);
video (_image, false, _next_video);
}
void
ImageMagickDecoder::seek (Time t)
{
_next_video = t;
}
Time
ImageMagickDecoder::next () const
{
return _next_video;
}
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