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"
35 using namespace boost;
37 ExamineContentJob::ExamineContentJob (shared_ptr<Film> f, shared_ptr<Job> req)
43 ExamineContentJob::~ExamineContentJob ()
48 ExamineContentJob::name () const
50 if (_film->name().empty ()) {
51 return "Examine content";
54 return String::compose ("Examine content of %1", _film->name());
58 ExamineContentJob::run ()
60 /* Decode the content to get an accurate length */
62 shared_ptr<Options> o (new Options ("", "", ""));
63 o->out_size = Size (512, 512);
64 o->apply_crop = false;
68 _decoder = decoder_factory (_film, o, this, true, true);
71 _film->set_length (_decoder->last_video_frame ());
73 _film->log()->log (String::compose ("Video length is %1 frames", _decoder->last_video_frame()));
77 /* Now make thumbnails for it */
82 o.reset (new Options (_film->dir ("thumbs"), ".png", ""));
83 o->out_size = _film->size ();
84 o->apply_crop = false;
85 o->decode_audio = false;
86 o->decode_video_frequency = 128;
87 o->decode_subtitles = true;
88 shared_ptr<ImageMagickEncoder> e (new ImageMagickEncoder (_film, o));
89 Transcoder w (_film, o, this, e);
92 } catch (std::exception& e) {
96 set_error (e.what ());
97 set_state (FINISHED_ERROR);
102 string const tdir = _film->dir ("thumbs");
105 for (filesystem::directory_iterator i = filesystem::directory_iterator (tdir); i != filesystem::directory_iterator(); ++i) {
107 /* Aah, the sweet smell of progress */
108 #if BOOST_FILESYSTEM_VERSION == 3
109 string const l = filesystem::path(*i).leaf().generic_string();
111 string const l = i->leaf ();
114 size_t const d = l.find (".png");
115 size_t const t = l.find (".tmp");
116 if (d != string::npos && t == string::npos) {
117 thumbs.push_back (atoi (l.substr (0, d).c_str()));
121 sort (thumbs.begin(), thumbs.end());
122 _film->set_thumbs (thumbs);
126 set_state (FINISHED_OK);
130 ExamineContentJob::last_video_frame () const
132 return _decoder->last_video_frame ();