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/*
Copyright (C) 2013 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.
*/
#include <libcxml/cxml.h>
#include "sndfile_content.h"
#include "sndfile_decoder.h"
#include "compose.hpp"
#include "job.h"
#include "i18n.h"
using std::string;
using std::stringstream;
using std::cout;
using boost::shared_ptr;
using boost::lexical_cast;
SndfileContent::SndfileContent (boost::filesystem::path f)
: Content (f)
, AudioContent (f)
, _audio_channels (0)
, _audio_length (0)
, _audio_frame_rate (0)
{
}
SndfileContent::SndfileContent (shared_ptr<const cxml::Node> node)
: Content (node)
, AudioContent (node)
{
_audio_channels = node->number_child<int> ("AudioChannels");
_audio_length = node->number_child<ContentAudioFrame> ("AudioLength");
_audio_frame_rate = node->number_child<int> ("AudioFrameRate");
}
string
SndfileContent::summary () const
{
return String::compose (_("Sound file: %1"), file().filename().string());
}
string
SndfileContent::information () const
{
if (_audio_frame_rate == 0) {
return "";
}
stringstream s;
s << String::compose (
_("%1 channels, %2kHz, %3 samples"),
audio_channels(),
audio_frame_rate() / 1000.0,
audio_length()
);
return s.str ();
}
bool
SndfileContent::valid_file (boost::filesystem::path f)
{
/* XXX: more extensions */
string ext = f.extension().string();
transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
return (ext == ".wav" || ext == ".aif" || ext == ".aiff");
}
shared_ptr<Content>
SndfileContent::clone () const
{
return shared_ptr<Content> (new SndfileContent (*this));
}
void
SndfileContent::examine (shared_ptr<Film> film, shared_ptr<Job> job, bool quick)
{
job->set_progress_unknown ();
Content::examine (film, job, quick);
SndfileDecoder dec (film, shared_from_this());
{
boost::mutex::scoped_lock lm (_mutex);
_audio_channels = dec.audio_channels ();
_audio_length = dec.audio_length ();
_audio_frame_rate = dec.audio_frame_rate ();
}
signal_changed (AudioContentProperty::AUDIO_CHANNELS);
signal_changed (AudioContentProperty::AUDIO_LENGTH);
signal_changed (AudioContentProperty::AUDIO_FRAME_RATE);
}
void
SndfileContent::as_xml (xmlpp::Node* node) const
{
node->add_child("Type")->add_child_text ("Sndfile");
Content::as_xml (node);
node->add_child("AudioChannels")->add_child_text (lexical_cast<string> (_audio_channels));
node->add_child("AudioLength")->add_child_text (lexical_cast<string> (_audio_length));
node->add_child("AudioFrameRate")->add_child_text (lexical_cast<string> (_audio_frame_rate));
}
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