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/*
Copyright (C) 2012-2015 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 "audio_analysis.h"
#include "cross.h"
#include "util.h"
#include "raw_convert.h"
#include <libxml++/libxml++.h>
#include <boost/filesystem.hpp>
#include <boost/foreach.hpp>
#include <stdint.h>
#include <cmath>
#include <cstdio>
#include <iostream>
#include <inttypes.h>
using std::ostream;
using std::istream;
using std::string;
using std::vector;
using std::cout;
using std::max;
using std::list;
using boost::shared_ptr;
AudioAnalysis::AudioAnalysis (int channels)
{
_data.resize (channels);
}
AudioAnalysis::AudioAnalysis (boost::filesystem::path filename)
{
cxml::Document f ("AudioAnalysis");
f.read_file (filename);
BOOST_FOREACH (cxml::NodePtr i, f.node_children ("Channel")) {
vector<AudioPoint> channel;
BOOST_FOREACH (cxml::NodePtr j, i->node_children ("Point")) {
channel.push_back (AudioPoint (j));
}
_data.push_back (channel);
}
_peak = f.number_child<float> ("Peak");
_peak_time = DCPTime (f.number_child<DCPTime::Type> ("PeakTime"));
_analysis_gain = f.optional_number_child<double> ("AnalysisGain");
}
void
AudioAnalysis::add_point (int c, AudioPoint const & p)
{
DCPOMATIC_ASSERT (c < channels ());
_data[c].push_back (p);
}
AudioPoint
AudioAnalysis::get_point (int c, int p) const
{
DCPOMATIC_ASSERT (p < points (c));
return _data[c][p];
}
int
AudioAnalysis::channels () const
{
return _data.size ();
}
int
AudioAnalysis::points (int c) const
{
DCPOMATIC_ASSERT (c < channels ());
return _data[c].size ();
}
void
AudioAnalysis::write (boost::filesystem::path filename)
{
shared_ptr<xmlpp::Document> doc (new xmlpp::Document);
xmlpp::Element* root = doc->create_root_node ("AudioAnalysis");
BOOST_FOREACH (vector<AudioPoint>& i, _data) {
xmlpp::Element* channel = root->add_child ("Channel");
BOOST_FOREACH (AudioPoint& j, i) {
j.as_xml (channel->add_child ("Point"));
}
}
if (_peak) {
root->add_child("Peak")->add_child_text (raw_convert<string> (_peak.get ()));
root->add_child("PeakTime")->add_child_text (raw_convert<string> (_peak_time.get().get ()));
}
if (_analysis_gain) {
root->add_child("AnalysisGain")->add_child_text (raw_convert<string> (_analysis_gain.get ()));
}
doc->write_to_file_formatted (filename.string ());
}
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