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)
45 ImageMagickDecoder::native_size () const
48 using namespace MagickCore;
49 Magick::Image* image = new Magick::Image (_imagemagick_content->file().string());
50 _native_size = libdcp::Size (image->columns(), image->rows());
54 return _native_size.get ();
58 ImageMagickDecoder::video_length () const
60 return _imagemagick_content->video_length ();
64 ImageMagickDecoder::pass ()
66 if (_position < 0 || _position >= _imagemagick_content->video_length ()) {
71 emit_video (_image, true, double (_position) / 24);
76 Magick::Image* magick_image = new Magick::Image (_imagemagick_content->file().string ());
77 _native_size = libdcp::Size (magick_image->columns(), magick_image->rows());
79 _image.reset (new SimpleImage (PIX_FMT_RGB24, _native_size.get(), false));
81 using namespace MagickCore;
83 uint8_t* p = _image->data()[0];
84 for (int y = 0; y < _native_size->height; ++y) {
85 for (int x = 0; x < _native_size->width; ++x) {
86 Magick::Color c = magick_image->pixelColor (x, y);
87 *p++ = c.redQuantum() * 255 / QuantumRange;
88 *p++ = c.greenQuantum() * 255 / QuantumRange;
89 *p++ = c.blueQuantum() * 255 / QuantumRange;
95 _image = _image->crop (_imagemagick_content->crop(), true);
96 emit_video (_image, false, double (_position) / 24);
103 ImageMagickDecoder::pixel_format () const
105 /* XXX: always true? */
106 return PIX_FMT_RGB24;
110 ImageMagickDecoder::seek (double t)
112 int const f = t * _imagemagick_content->video_frame_rate ();
114 if (f >= _imagemagick_content->video_length()) {