2 Copyright (C) 2013 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 #include <libcxml/cxml.h>
21 #include "ffmpeg_content.h"
22 #include "ffmpeg_decoder.h"
23 #include "compose.hpp"
33 using boost::shared_ptr;
34 using boost::lexical_cast;
36 int const FFmpegContentProperty::SUBTITLE_STREAMS = 100;
37 int const FFmpegContentProperty::SUBTITLE_STREAM = 101;
38 int const FFmpegContentProperty::AUDIO_STREAMS = 102;
39 int const FFmpegContentProperty::AUDIO_STREAM = 103;
41 FFmpegContent::FFmpegContent (boost::filesystem::path f)
49 FFmpegContent::FFmpegContent (shared_ptr<const cxml::Node> node)
54 list<shared_ptr<cxml::Node> > c = node->node_children ("SubtitleStream");
55 for (list<shared_ptr<cxml::Node> >::const_iterator i = c.begin(); i != c.end(); ++i) {
56 _subtitle_streams.push_back (FFmpegSubtitleStream (*i));
57 if ((*i)->optional_number_child<int> ("Selected")) {
58 _subtitle_stream = _subtitle_streams.back ();
62 c = node->node_children ("AudioStream");
63 for (list<shared_ptr<cxml::Node> >::const_iterator i = c.begin(); i != c.end(); ++i) {
64 _audio_streams.push_back (FFmpegAudioStream (*i));
65 if ((*i)->optional_number_child<int> ("Selected")) {
66 _audio_stream = _audio_streams.back ();
72 FFmpegContent::as_xml (xmlpp::Node* node) const
74 node->add_child("Type")->add_child_text ("FFmpeg");
75 Content::as_xml (node);
76 VideoContent::as_xml (node);
78 boost::mutex::scoped_lock lm (_mutex);
80 for (vector<FFmpegSubtitleStream>::const_iterator i = _subtitle_streams.begin(); i != _subtitle_streams.end(); ++i) {
81 xmlpp::Node* t = node->add_child("SubtitleStream");
82 if (_subtitle_stream && *i == _subtitle_stream.get()) {
83 t->add_child("Selected")->add_child_text("1");
88 for (vector<FFmpegAudioStream>::const_iterator i = _audio_streams.begin(); i != _audio_streams.end(); ++i) {
89 xmlpp::Node* t = node->add_child("AudioStream");
90 if (_audio_stream && *i == _audio_stream.get()) {
91 t->add_child("Selected")->add_child_text("1");
98 FFmpegContent::examine (shared_ptr<Film> film, shared_ptr<Job> job, bool quick)
101 Content::examine (film, job, quick);
104 job->set_progress_unknown ();
106 shared_ptr<FFmpegDecoder> decoder (new FFmpegDecoder (film, shared_from_this (), true, false, false, true));
108 ContentVideoFrame video_length = 0;
110 video_length = decoder->video_length ();
111 film->log()->log (String::compose ("Video length obtained from header as %1 frames", decoder->video_length ()));
113 while (!decoder->pass ()) {
117 video_length = decoder->video_frame ();
118 film->log()->log (String::compose ("Video length examined as %1 frames", decoder->video_frame ()));
122 boost::mutex::scoped_lock lm (_mutex);
124 _video_length = video_length;
126 _subtitle_streams = decoder->subtitle_streams ();
127 if (!_subtitle_streams.empty ()) {
128 _subtitle_stream = _subtitle_streams.front ();
131 _audio_streams = decoder->audio_streams ();
132 if (!_audio_streams.empty ()) {
133 _audio_stream = _audio_streams.front ();
137 take_from_video_decoder (decoder);
139 Changed (VideoContentProperty::VIDEO_LENGTH);
140 Changed (FFmpegContentProperty::SUBTITLE_STREAMS);
141 Changed (FFmpegContentProperty::SUBTITLE_STREAM);
142 Changed (FFmpegContentProperty::AUDIO_STREAMS);
143 Changed (FFmpegContentProperty::AUDIO_STREAM);
147 FFmpegContent::summary () const
149 return String::compose (_("Movie: %1"), file().filename ());
153 FFmpegContent::set_subtitle_stream (FFmpegSubtitleStream s)
156 boost::mutex::scoped_lock lm (_mutex);
157 _subtitle_stream = s;
160 Changed (FFmpegContentProperty::SUBTITLE_STREAM);
164 FFmpegContent::set_audio_stream (FFmpegAudioStream s)
167 boost::mutex::scoped_lock lm (_mutex);
171 Changed (FFmpegContentProperty::AUDIO_STREAM);
175 FFmpegContent::audio_length () const
177 if (!_audio_stream) {
181 return video_frames_to_audio_frames (_video_length, audio_frame_rate(), video_frame_rate());
185 FFmpegContent::audio_channels () const
187 if (!_audio_stream) {
191 return _audio_stream->channels ();
195 FFmpegContent::audio_frame_rate () const
197 if (!_audio_stream) {
201 return _audio_stream->frame_rate;
205 FFmpegContent::audio_channel_layout () const
207 if (!_audio_stream) {
211 return _audio_stream->channel_layout;
215 operator== (FFmpegSubtitleStream const & a, FFmpegSubtitleStream const & b)
221 operator== (FFmpegAudioStream const & a, FFmpegAudioStream const & b)
226 FFmpegAudioStream::FFmpegAudioStream (shared_ptr<const cxml::Node> node)
228 name = node->string_child ("Name");
229 id = node->number_child<int> ("Id");
230 frame_rate = node->number_child<int> ("FrameRate");
231 channel_layout = node->number_child<int64_t> ("ChannelLayout");
235 FFmpegAudioStream::as_xml (xmlpp::Node* root) const
237 root->add_child("Name")->add_child_text (name);
238 root->add_child("Id")->add_child_text (lexical_cast<string> (id));
239 root->add_child("FrameRate")->add_child_text (lexical_cast<string> (frame_rate));
240 root->add_child("ChannelLayout")->add_child_text (lexical_cast<string> (channel_layout));
243 /** Construct a SubtitleStream from a value returned from to_string().
244 * @param t String returned from to_string().
245 * @param v State file version.
247 FFmpegSubtitleStream::FFmpegSubtitleStream (shared_ptr<const cxml::Node> node)
249 name = node->string_child ("Name");
250 id = node->number_child<int> ("Id");
254 FFmpegSubtitleStream::as_xml (xmlpp::Node* root) const
256 root->add_child("Name")->add_child_text (name);
257 root->add_child("Id")->add_child_text (lexical_cast<string> (id));