2 Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 #include <boost/filesystem.hpp>
23 #include "imagemagick_content.h"
24 #include "imagemagick_decoder.h"
27 #include "exceptions.h"
32 using boost::shared_ptr;
35 ImageMagickDecoder::ImageMagickDecoder (shared_ptr<const Film> f, shared_ptr<const ImageMagickContent> c)
38 , _imagemagick_content (c)
44 ImageMagickDecoder::video_size () const
47 using namespace MagickCore;
48 Magick::Image* image = new Magick::Image (_imagemagick_content->file().string());
49 _video_size = libdcp::Size (image->columns(), image->rows());
53 return _video_size.get ();
57 ImageMagickDecoder::video_length () const
59 return _imagemagick_content->video_length ();
63 ImageMagickDecoder::video_frame_rate () const
65 boost::shared_ptr<const Film> f = _film.lock ();
70 return f->dcp_video_frame_rate ();
74 ImageMagickDecoder::pass ()
76 if (_position < 0 || _position >= _imagemagick_content->video_length ()) {
81 video (_image, true, double (_position) / video_frame_rate());
86 Magick::Image* magick_image = new Magick::Image (_imagemagick_content->file().string ());
87 _video_size = libdcp::Size (magick_image->columns(), magick_image->rows());
89 _image.reset (new SimpleImage (PIX_FMT_RGB24, _video_size.get(), false));
91 using namespace MagickCore;
93 uint8_t* p = _image->data()[0];
94 for (int y = 0; y < _video_size->height; ++y) {
95 for (int x = 0; x < _video_size->width; ++x) {
96 Magick::Color c = magick_image->pixelColor (x, y);
97 *p++ = c.redQuantum() * 255 / QuantumRange;
98 *p++ = c.greenQuantum() * 255 / QuantumRange;
99 *p++ = c.blueQuantum() * 255 / QuantumRange;
105 _image = _image->crop (_imagemagick_content->crop(), true);
106 video (_image, false, double (_position) / 24);
113 ImageMagickDecoder::pixel_format () const
115 /* XXX: always true? */
116 return PIX_FMT_RGB24;
120 ImageMagickDecoder::seek (double t)
122 int const f = t * _imagemagick_content->video_frame_rate ();
124 if (f >= _imagemagick_content->video_length()) {
134 ImageMagickDecoder::next () const