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.
20 /** @file src/tiff_encoder.h
21 * @brief An encoder that writes TIFF files (and does nothing with audio).
30 #include <boost/filesystem.hpp>
32 #include "tiff_encoder.h"
34 #include "film_state.h"
36 #include "exceptions.h"
41 using namespace boost;
43 /** @param s FilmState of the film that we are encoding.
47 TIFFEncoder::TIFFEncoder (shared_ptr<const FilmState> s, shared_ptr<const Options> o, Log* l)
54 TIFFEncoder::process_video (shared_ptr<Image> image, int frame, shared_ptr<Subtitle> sub)
56 shared_ptr<Image> scaled = image->scale_and_convert_to_rgb (_opt->out_size, _opt->padding, _fs->scaler);
57 string tmp_file = _opt->frame_out_path (frame, true);
58 TIFF* output = TIFFOpen (tmp_file.c_str (), "w");
60 throw CreateFileError (tmp_file);
63 TIFFSetField (output, TIFFTAG_IMAGEWIDTH, _opt->out_size.width);
64 TIFFSetField (output, TIFFTAG_IMAGELENGTH, _opt->out_size.height);
65 TIFFSetField (output, TIFFTAG_COMPRESSION, COMPRESSION_NONE);
66 TIFFSetField (output, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
67 TIFFSetField (output, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB);
68 TIFFSetField (output, TIFFTAG_BITSPERSAMPLE, 8);
69 TIFFSetField (output, TIFFTAG_SAMPLESPERPIXEL, 3);
71 if (TIFFWriteEncodedStrip (output, 0, scaled->data()[0], _opt->out_size.width * _opt->out_size.height * 3) == 0) {
72 throw WriteFileError (tmp_file, 0);
77 filesystem::rename (tmp_file, _opt->frame_out_path (frame, false));
80 float const x_scale = float (_opt->out_size.width) / _fs->size.width;
81 float const y_scale = float (_opt->out_size.height) / _fs->size.height;
83 string tmp_metadata_file = _opt->frame_out_path (frame, false, ".sub");
84 ofstream metadata (tmp_metadata_file.c_str ());
86 list<shared_ptr<SubtitleImage> > images = sub->images ();
88 for (list<shared_ptr<SubtitleImage> >::iterator i = images.begin(); i != images.end(); ++i) {
90 ext << ".sub." << n << ".tiff";
92 string tmp_sub_file = _opt->frame_out_path (frame, true, ext.str ());
93 output = TIFFOpen (tmp_sub_file.c_str(), "w");
95 throw CreateFileError (tmp_file);
98 Size new_size = (*i)->image()->size ();
99 new_size.width *= x_scale;
100 new_size.height *= y_scale;
101 shared_ptr<Image> scaled = (*i)->image()->scale (new_size, _fs->scaler);
103 TIFFSetField (output, TIFFTAG_IMAGEWIDTH, scaled->size().width);
104 TIFFSetField (output, TIFFTAG_IMAGELENGTH, scaled->size().height);
105 TIFFSetField (output, TIFFTAG_COMPRESSION, COMPRESSION_NONE);
106 TIFFSetField (output, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
107 TIFFSetField (output, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB);
108 TIFFSetField (output, TIFFTAG_BITSPERSAMPLE, 8);
109 TIFFSetField (output, TIFFTAG_SAMPLESPERPIXEL, 4);
111 if (TIFFWriteEncodedStrip (output, 0, scaled->data()[0], scaled->size().width * scaled->size().height * 4) == 0) {
112 throw WriteFileError (tmp_file, 0);
116 filesystem::rename (tmp_sub_file, _opt->frame_out_path (frame, false, ext.str ()));
118 metadata << "image " << n << "\n"
119 << "x " << (*i)->position().x << "\n"
120 << "y " << (*i)->position().y << "\n";
123 filesystem::rename (tmp_metadata_file, _opt->frame_out_path (frame, false, ".sub"));