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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.
*/
#ifndef DCPOMATIC_AUDIO_CONTENT_H
#define DCPOMATIC_AUDIO_CONTENT_H
#include "content.h"
#include "audio_mapping.h"
namespace cxml {
class Node;
}
class AudioContentProperty
{
public:
static int const AUDIO_CHANNELS;
static int const AUDIO_LENGTH;
static int const AUDIO_FRAME_RATE;
static int const AUDIO_GAIN;
static int const AUDIO_DELAY;
static int const AUDIO_MAPPING;
};
class AudioContent : public virtual Content
{
public:
typedef int64_t Frame;
AudioContent (boost::shared_ptr<const Film>, Time);
AudioContent (boost::shared_ptr<const Film>, boost::filesystem::path);
AudioContent (boost::shared_ptr<const Film>, boost::shared_ptr<const cxml::Node>);
void as_xml (xmlpp::Node *) const;
std::string technical_summary () const;
virtual int audio_channels () const = 0;
virtual AudioContent::Frame audio_length () const = 0;
virtual int content_audio_frame_rate () const = 0;
virtual int output_audio_frame_rate () const = 0;
virtual AudioMapping audio_mapping () const = 0;
virtual void set_audio_mapping (AudioMapping) = 0;
void analyse_audio (boost::function<void()>);
boost::filesystem::path audio_analysis_path () const;
void set_audio_gain (float);
void set_audio_delay (int);
float audio_gain () const {
boost::mutex::scoped_lock lm (_mutex);
return _audio_gain;
}
int audio_delay () const {
boost::mutex::scoped_lock lm (_mutex);
return _audio_delay;
}
private:
/** Gain to apply to audio in dB */
float _audio_gain;
/** Delay to apply to audio (positive moves audio later) in milliseconds */
int _audio_delay;
};
#endif
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