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/*
Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/** @file src/tiff_encoder.h
* @brief An encoder that writes TIFF files (and does nothing with audio).
*/
#include <stdexcept>
#include <vector>
#include <sstream>
#include <iomanip>
#include <iostream>
#include <fstream>
#include <boost/filesystem.hpp>
#include <tiffio.h>
#include "tiff_encoder.h"
#include "film.h"
#include "film_state.h"
#include "options.h"
#include "exceptions.h"
#include "image.h"
#include "subtitle.h"
using namespace std;
using namespace boost;
/** @param s FilmState of the film that we are encoding.
* @param o Options.
* @param l Log.
*/
TIFFEncoder::TIFFEncoder (shared_ptr<const FilmState> s, shared_ptr<const Options> o, Log* l)
: Encoder (s, o, l)
{
}
void
TIFFEncoder::process_video (shared_ptr<Image> image, int frame, shared_ptr<Subtitle> sub)
{
shared_ptr<Image> scaled = image->scale_and_convert_to_rgb (_opt->out_size, _opt->padding, _fs->scaler);
string tmp_file = _opt->frame_out_path (frame, true);
TIFF* output = TIFFOpen (tmp_file.c_str (), "w");
if (output == 0) {
throw CreateFileError (tmp_file);
}
TIFFSetField (output, TIFFTAG_IMAGEWIDTH, _opt->out_size.width);
TIFFSetField (output, TIFFTAG_IMAGELENGTH, _opt->out_size.height);
TIFFSetField (output, TIFFTAG_COMPRESSION, COMPRESSION_NONE);
TIFFSetField (output, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
TIFFSetField (output, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB);
TIFFSetField (output, TIFFTAG_BITSPERSAMPLE, 8);
TIFFSetField (output, TIFFTAG_SAMPLESPERPIXEL, 3);
if (TIFFWriteEncodedStrip (output, 0, scaled->data()[0], _opt->out_size.width * _opt->out_size.height * 3) == 0) {
throw WriteFileError (tmp_file, 0);
}
TIFFClose (output);
filesystem::rename (tmp_file, _opt->frame_out_path (frame, false));
if (sub) {
float const x_scale = float (_opt->out_size.width) / _fs->size.width;
float const y_scale = float (_opt->out_size.height) / _fs->size.height;
string tmp_metadata_file = _opt->frame_out_path (frame, false, ".sub");
ofstream metadata (tmp_metadata_file.c_str ());
list<shared_ptr<SubtitleImage> > images = sub->images ();
int n = 0;
for (list<shared_ptr<SubtitleImage> >::iterator i = images.begin(); i != images.end(); ++i) {
stringstream ext;
ext << ".sub." << n << ".tiff";
string tmp_sub_file = _opt->frame_out_path (frame, true, ext.str ());
output = TIFFOpen (tmp_sub_file.c_str(), "w");
if (output == 0) {
throw CreateFileError (tmp_file);
}
Size new_size = (*i)->image()->size ();
new_size.width *= x_scale;
new_size.height *= y_scale;
shared_ptr<Image> scaled = (*i)->image()->scale (new_size, _fs->scaler);
TIFFSetField (output, TIFFTAG_IMAGEWIDTH, scaled->size().width);
TIFFSetField (output, TIFFTAG_IMAGELENGTH, scaled->size().height);
TIFFSetField (output, TIFFTAG_COMPRESSION, COMPRESSION_NONE);
TIFFSetField (output, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
TIFFSetField (output, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB);
TIFFSetField (output, TIFFTAG_BITSPERSAMPLE, 8);
TIFFSetField (output, TIFFTAG_SAMPLESPERPIXEL, 4);
if (TIFFWriteEncodedStrip (output, 0, scaled->data()[0], scaled->size().width * scaled->size().height * 4) == 0) {
throw WriteFileError (tmp_file, 0);
}
TIFFClose (output);
filesystem::rename (tmp_sub_file, _opt->frame_out_path (frame, false, ext.str ()));
metadata << "image " << n << "\n"
<< "x " << (*i)->position().x << "\n"
<< "y " << (*i)->position().y << "\n";
metadata.close ();
filesystem::rename (tmp_metadata_file, _opt->frame_out_path (frame, false, ".sub"));
}
}
frame_done (frame);
}
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