/*
- Copyright (C) 2012-2016 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2021 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_decoder.h
* @brief Parent class for audio decoders.
*/
+
#ifndef DCPOMATIC_AUDIO_DECODER_H
#define DCPOMATIC_AUDIO_DECODER_H
-#include "decoder.h"
-#include "content_audio.h"
+
#include "audio_stream.h"
-#include <boost/enable_shared_from_this.hpp>
+#include "content_audio.h"
+#include "decoder.h"
+#include "decoder_part.h"
+#include <boost/signals2.hpp>
+
class AudioBuffers;
class AudioContent;
class AudioDecoderStream;
class Log;
+class Film;
+class Resampler;
+
/** @class AudioDecoder.
* @brief Parent class for audio decoders.
*/
-class AudioDecoder : public boost::enable_shared_from_this<AudioDecoder>
+class AudioDecoder : public std::enable_shared_from_this<AudioDecoder>, public DecoderPart
{
public:
- AudioDecoder (Decoder* parent, boost::shared_ptr<const AudioContent>, bool fast, boost::shared_ptr<Log> log);
-
- /** Try to fetch some audio from a specific place in this content.
- * @param frame Frame to start from (after resampling, if applicable)
- * @param length Frames to get (after resampling, if applicable)
- * @param accurate true to try hard to return frames from exactly `frame', false if we don't mind nearby frames.
- * @return Time-stamped audio data which may or may not be from the location (and of the length) requested.
- */
- ContentAudio get (AudioStreamPtr stream, Frame time, Frame length, bool accurate);
+ AudioDecoder (Decoder* parent, std::shared_ptr<const AudioContent> content, bool fast);
- void set_ignore ();
+ boost::optional<dcpomatic::ContentTime> position (std::shared_ptr<const Film> film) const;
+ void emit (std::shared_ptr<const Film> film, AudioStreamPtr stream, std::shared_ptr<const AudioBuffers>, dcpomatic::ContentTime, bool time_already_delayed = false);
+ void seek ();
+ void flush ();
- bool fast () const {
- return _fast;
- }
+ dcpomatic::ContentTime stream_position (std::shared_ptr<const Film> film, AudioStreamPtr stream) const;
- void give (AudioStreamPtr stream, boost::shared_ptr<const AudioBuffers>, ContentTime);
- void flush ();
- void seek (ContentTime t, bool accurate);
+ boost::signals2::signal<void (AudioStreamPtr, ContentAudio)> Data;
private:
- /** An AudioDecoderStream object to manage each stream in _audio_content */
- std::map<AudioStreamPtr, boost::shared_ptr<AudioDecoderStream> > _streams;
- bool _ignore;
+ void silence (AudioStreamPtr stream, int milliseconds);
+
+ std::shared_ptr<const AudioContent> _content;
+ /** Frame after the last one that was emitted from Data (i.e. at the resampled rate, if applicable)
+ * for each AudioStream.
+ */
+ typedef std::map<AudioStreamPtr, Frame> PositionMap;
+ PositionMap _positions;
+ typedef std::map<AudioStreamPtr, std::shared_ptr<Resampler>> ResamplerMap;
+ ResamplerMap _resamplers;
+
bool _fast;
};
+
#endif