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/examine_content_job.cc
21 * @brief A class to run through content at high speed to find its length.
24 #include <boost/filesystem.hpp>
25 #include "examine_content_job.h"
27 #include "decoder_factory.h"
29 #include "imagemagick_encoder.h"
30 #include "transcoder.h"
36 using boost::shared_ptr;
38 ExamineContentJob::ExamineContentJob (shared_ptr<Film> f, shared_ptr<Job> req)
44 ExamineContentJob::~ExamineContentJob ()
49 ExamineContentJob::name () const
51 if (_film->name().empty ()) {
52 return "Examine content";
55 return String::compose ("Examine content of %1", _film->name());
59 ExamineContentJob::run ()
61 /* Decode the content to get an accurate length */
63 shared_ptr<Options> o (new Options ("", "", ""));
64 o->out_size = Size (512, 512);
65 o->apply_crop = false;
69 _decoder = decoder_factory (_film, o, this, true);
72 _film->set_length (_decoder->video_frame_index());
74 _film->log()->log (String::compose ("Video length is %1 frames", _decoder->video_frame_index()));
78 /* Now make thumbnails for it */
83 o.reset (new Options (_film->dir ("thumbs"), ".png", ""));
84 o->out_size = _film->size ();
85 o->apply_crop = false;
86 o->decode_audio = false;
87 if (_film->length() > 0) {
88 o->decode_video_skip = _film->length().get() / 128;
90 o->decode_video_skip = 0;
92 o->decode_subtitles = true;
93 shared_ptr<ImageMagickEncoder> e (new ImageMagickEncoder (_film, o));
94 Transcoder w (_film, o, this, e);
97 } catch (std::exception& e) {
101 set_error (e.what ());
102 set_state (FINISHED_ERROR);
107 string const tdir = _film->dir ("thumbs");
108 vector<SourceFrame> thumbs;
110 for (boost::filesystem::directory_iterator i = boost::filesystem::directory_iterator (tdir); i != boost::filesystem::directory_iterator(); ++i) {
112 /* Aah, the sweet smell of progress */
113 #if BOOST_FILESYSTEM_VERSION == 3
114 string const l = boost::filesystem::path(*i).leaf().generic_string();
116 string const l = i->leaf ();
119 size_t const d = l.find (".png");
120 size_t const t = l.find (".tmp");
121 if (d != string::npos && t == string::npos) {
122 thumbs.push_back (atoi (l.substr (0, d).c_str()));
126 sort (thumbs.begin(), thumbs.end());
127 _film->set_thumbs (thumbs);
131 set_state (FINISHED_OK);