/*
- Copyright (C) 2013-2016 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2013-2021 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
*/
+
/** @file src/lib/audio_content.h
* @brief AudioContent and AudioContentProperty classes.
*/
+
#ifndef DCPOMATIC_AUDIO_CONTENT_H
#define DCPOMATIC_AUDIO_CONTENT_H
-#include "content_part.h"
-#include "audio_stream.h"
+
#include "audio_mapping.h"
+#include "audio_stream.h"
+#include "content_part.h"
+#include "named_channel.h"
+
/** @class AudioContentProperty
* @brief Names for properties of AudioContent.
static int const STREAMS;
static int const GAIN;
static int const DELAY;
+ static int const FADE_IN;
+ static int const FADE_OUT;
+ static int const USE_SAME_FADES_AS_VIDEO;
};
+
class AudioContent : public ContentPart
{
public:
explicit AudioContent (Content* parent);
- AudioContent (Content* parent, std::vector<boost::shared_ptr<Content> >);
+ AudioContent (Content* parent, std::vector<std::shared_ptr<Content>>);
+ AudioContent (Content* parent, cxml::ConstNodePtr);
void as_xml (xmlpp::Node *) const;
std::string technical_summary () const;
- void take_settings_from (boost::shared_ptr<const AudioContent> c);
+ void take_settings_from (std::shared_ptr<const AudioContent> c);
AudioMapping mapping () const;
void set_mapping (AudioMapping);
- int resampled_frame_rate (boost::shared_ptr<const Film> film) const;
+ int resampled_frame_rate (std::shared_ptr<const Film> film) const;
std::vector<NamedChannel> channel_names () const;
+ /** Set gain in dB */
void set_gain (double);
+ /** Set delay in milliseconds (positive moves audio later) */
void set_delay (int);
double gain () const {
return _delay;
}
- std::string processing_description (boost::shared_ptr<const Film> film) const;
+ dcpomatic::ContentTime fade_in () const;
+ dcpomatic::ContentTime fade_out () const;
+
+ void set_fade_in (dcpomatic::ContentTime time);
+ void set_fade_out (dcpomatic::ContentTime time);
+ void set_use_same_fades_as_video (bool s);
+
+ std::string processing_description (std::shared_ptr<const Film> film) const;
std::vector<AudioStreamPtr> streams () const {
boost::mutex::scoped_lock lm (_mutex);
void set_streams (std::vector<AudioStreamPtr> streams);
AudioStreamPtr stream () const;
- void add_properties (boost::shared_ptr<const Film> film, std::list<UserProperty> &) const;
+ void add_properties (std::shared_ptr<const Film> film, std::list<UserProperty> &) const;
- void modify_position (boost::shared_ptr<const Film> film, dcpomatic::DCPTime& pos) const;
- void modify_trim_start (dcpomatic::ContentTime& pos) const;
+ void modify_position (std::shared_ptr<const Film> film, dcpomatic::DCPTime& pos) const;
+ void modify_trim_start(std::shared_ptr<const Film> film, dcpomatic::ContentTime& pos) const;
- static boost::shared_ptr<AudioContent> from_xml (Content* parent, cxml::ConstNodePtr, int version);
+ /** @param frame frame within the whole (untrimmed) content.
+ * @param frame_rate The frame rate of the audio (it may have been resampled).
+ * @return a fade coefficient for @ref length samples starting at an offset @frame within
+ * the content, or an empty vector if the given section has no fade.
+ */
+ std::vector<float> fade (AudioStreamPtr stream, Frame frame, Frame length, int frame_rate) const;
-private:
+ static std::shared_ptr<AudioContent> from_xml (Content* parent, cxml::ConstNodePtr, int version);
- AudioContent (Content* parent, cxml::ConstNodePtr);
+private:
/** Gain to apply to audio in dB */
- double _gain;
+ double _gain = 0;
/** Delay to apply to audio (positive moves audio later) in milliseconds */
- int _delay;
+ int _delay = 0;
+ dcpomatic::ContentTime _fade_in;
+ dcpomatic::ContentTime _fade_out;
+ bool _use_same_fades_as_video = false;
std::vector<AudioStreamPtr> _streams;
};