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 (_next_video >= _imagemagick_content->length ()) {
81 video (_image, true, _next_video);
85 Magick::Image* magick_image = new Magick::Image (_imagemagick_content->file().string ());
86 _video_size = libdcp::Size (magick_image->columns(), magick_image->rows());
88 _image.reset (new SimpleImage (PIX_FMT_RGB24, _video_size.get(), false));
90 using namespace MagickCore;
92 uint8_t* p = _image->data()[0];
93 for (int y = 0; y < _video_size->height; ++y) {
94 for (int x = 0; x < _video_size->width; ++x) {
95 Magick::Color c = magick_image->pixelColor (x, y);
96 *p++ = c.redQuantum() * 255 / QuantumRange;
97 *p++ = c.greenQuantum() * 255 / QuantumRange;
98 *p++ = c.blueQuantum() * 255 / QuantumRange;
104 _image = _image->crop (_imagemagick_content->crop(), true);
105 video (_image, false, _next_video);
109 ImageMagickDecoder::seek (Time t)
115 ImageMagickDecoder::seek_back ()
117 boost::shared_ptr<const Film> f = _film.lock ();
122 _next_video -= f->video_frames_to_time (2);
126 ImageMagickDecoder::seek_forward ()
128 boost::shared_ptr<const Film> f = _film.lock ();
133 _next_video += f->video_frames_to_time (1);
137 ImageMagickDecoder::next () const
144 ImageMagickDecoder::done () const
146 return video_done ();