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
47 using namespace MagickCore;
48 Magick::Image* image = new Magick::Image (_imagemagick_content->file().string());
49 libdcp::Size const s = libdcp::Size (image->columns(), image->rows());
56 ImageMagickDecoder::video_length () const
58 return _imagemagick_content->video_length ();
62 ImageMagickDecoder::pass ()
64 if (_position < 0 || _position >= _imagemagick_content->video_length ()) {
68 if (have_last_video ()) {
69 repeat_last_video (double (_position) / 24);
74 Magick::Image* magick_image = new Magick::Image (_imagemagick_content->file().string ());
76 libdcp::Size size = native_size ();
77 shared_ptr<Image> image (new SimpleImage (PIX_FMT_RGB24, size, false));
79 using namespace MagickCore;
81 uint8_t* p = image->data()[0];
82 for (int y = 0; y < size.height; ++y) {
83 for (int x = 0; x < size.width; ++x) {
84 Magick::Color c = magick_image->pixelColor (x, y);
85 *p++ = c.redQuantum() * 255 / QuantumRange;
86 *p++ = c.greenQuantum() * 255 / QuantumRange;
87 *p++ = c.blueQuantum() * 255 / QuantumRange;
93 image = image->crop (_film->crop(), true);
95 emit_video (image, double (_position) / 24);
102 ImageMagickDecoder::pixel_format () const
104 /* XXX: always true? */
105 return PIX_FMT_RGB24;
109 ImageMagickDecoder::seek_to_last ()
119 ImageMagickDecoder::seek (double t)
121 int const f = t * _imagemagick_content->video_frame_rate ();
123 if (f >= _imagemagick_content->video_length()) {