X-Git-Url: https://main.carlh.net/gitweb/?p=dcpomatic.git;a=blobdiff_plain;f=src%2Flib%2Faudio_content.h;h=82a9de04171ef85a6719f6e229c0451ab7088657;hp=82c95a513a3ca475d7d3312551fed1255000aeba;hb=HEAD;hpb=14e4bc18e65378332604016bd6239861a083d5bf

diff --git a/src/lib/audio_content.h b/src/lib/audio_content.h
index 82c95a513..084871c8b 100644
--- a/src/lib/audio_content.h
+++ b/src/lib/audio_content.h
@@ -1,32 +1,38 @@
 /*
-    Copyright (C) 2013-2015 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2013-2021 Carl Hetherington <cth@carlh.net>
 
-    This program is free software; you can redistribute it and/or modify
+    This file is part of DCP-o-matic.
+
+    DCP-o-matic 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,
+    DCP-o-matic 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.
+    along with DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
 
 */
 
+
 /** @file  src/lib/audio_content.h
  *  @brief AudioContent and AudioContentProperty classes.
  */
 
+
 #ifndef DCPOMATIC_AUDIO_CONTENT_H
 #define DCPOMATIC_AUDIO_CONTENT_H
 
-#include "content.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.
@@ -34,54 +40,88 @@
 class AudioContentProperty
 {
 public:
-	static int const AUDIO_STREAMS;
-	static int const AUDIO_GAIN;
-	static int const AUDIO_DELAY;
+	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
- *  @brief Parent class for content which may contain audio data.
- */
-class AudioContent : public virtual Content
+
+class AudioContent : public ContentPart
 {
 public:
-	AudioContent (boost::shared_ptr<const Film>);
-	AudioContent (boost::shared_ptr<const Film>, DCPTime);
-	AudioContent (boost::shared_ptr<const Film>, boost::filesystem::path);
-	AudioContent (boost::shared_ptr<const Film>, cxml::ConstNodePtr);
-	AudioContent (boost::shared_ptr<const Film>, std::vector<boost::shared_ptr<Content> >);
+	explicit AudioContent (Content* parent);
+	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 (std::shared_ptr<const AudioContent> c);
 
-	virtual std::vector<AudioStreamPtr> audio_streams () const = 0;
+	AudioMapping mapping () const;
+	void set_mapping (AudioMapping);
+	int resampled_frame_rate (std::shared_ptr<const Film> film) const;
+	std::vector<NamedChannel> channel_names () const;
 
-	AudioMapping audio_mapping () const;
-	void set_audio_mapping (AudioMapping);
-	int resampled_audio_frame_rate () const;
-	bool has_rate_above_48k () const;
-	std::vector<std::string> audio_channel_names () const;
+	/** Set gain in dB */
+	void set_gain (double);
+	/** Set delay in milliseconds (positive moves audio later) */
+	void set_delay (int);
 
-	void set_audio_gain (double);
-	void set_audio_delay (int);
+	double gain () const {
+		boost::mutex::scoped_lock lm (_mutex);
+		return _gain;
+	}
 
-	double audio_gain () const {
+	int delay () const {
 		boost::mutex::scoped_lock lm (_mutex);
-		return _audio_gain;
+		return _delay;
 	}
 
-	int audio_delay () 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);
-		return _audio_delay;
+		return _streams;
 	}
 
-	std::string processing_description () const;
+	void add_stream (AudioStreamPtr stream);
+	void set_stream (AudioStreamPtr stream);
+	AudioStreamPtr stream () const;
+
+	void add_properties (std::shared_ptr<const Film> film, std::list<UserProperty> &) 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;
+
+	/** @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;
+
+	static std::shared_ptr<AudioContent> from_xml (Content* parent, cxml::ConstNodePtr, int version);
 
 private:
+
 	/** Gain to apply to audio in dB */
-	double _audio_gain;
+	double _gain = 0;
 	/** Delay to apply to audio (positive moves audio later) in milliseconds */
-	int _audio_delay;
+	int _delay = 0;
+	dcpomatic::ContentTime _fade_in;
+	dcpomatic::ContentTime _fade_out;
+	bool _use_same_fades_as_video = false;
+	std::vector<AudioStreamPtr> _streams;
 };
 
 #endif